Control device for lighting device

Abstract

The invention provides a control device for a lighting device, which can easily perform fine adjustment of diffusivity. A control device for a lighting device includes: a touch sensor having a detection region in which a plurality of detection elements are provided; and a display panel that is provided with a display region that overlaps the detection region of the touch sensor in plan view, and that displays, in the display region, an adjustment screen for the diffusivity of the illumination device. The adjustment screen is provided with an adjustment region for adjusting the diffusivity of the lighting device. If the difference between the target value of the diffusivity defined by the touch detection position within the adjustment area and the current value of the diffusivity of the lighting device is equal to or greater than a first adjustment interval (step S211; if the difference between the target value of the diffusivity and the current value of the diffusivity of the lighting device is less than the first adjustment interval, the diffusivity of the lighting device is adjusted at a first adjustment interval (step S211; ), adjusting the diffusivity of the lighting device at a second adjustment interval narrower than the first adjustment interval.

Description

Technical Field

[0001] The present invention relates to a control device for a lighting device. Background Art

[0002] Conventional lighting fixtures have employed thin lenses engraved with prism patterns in combination with light sources such as LEDs to vary the distance between the light source and the thin lens, thereby changing the light distribution angle. For example, a lighting fixture has been disclosed that covers the front surface of a transparent bulb with a liquid crystal dimming element and switches between direct light and diffuse light by varying the transmittance of the liquid crystal layer (e.g., see Patent Document 1).

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2-65001 Summary of the Invention

[0006] Technical problem to be solved by the invention

[0007] For example, in an illumination device using a liquid crystal cell for p-wave polarized light and a liquid crystal cell for s-wave polarized light, the diffusion of light in both directions can be controlled by driving each liquid crystal cell separately. In such an illumination device capable of controlling the diffusion of light in both directions, conventional methods of adjusting the diffusion by detecting the touch position on the screen of a smartphone or tablet computer, for example, can sometimes make fine adjustments difficult due to fluctuations in the touch detection position. Therefore, a control device that facilitates fine adjustment of the diffusion is desired.

[0008] An object of the present invention is to provide a control device for a lighting device that facilitates fine adjustment of the degree of diffusion.

[0009] Solutions for solving technical problems

[0010] A control device for an illumination device according to one embodiment of the present disclosure controls a plurality of illumination devices, which can set a light distribution shape of light irradiated onto a virtual plane in two directions, a first direction and a second direction intersecting the first direction, by adjusting the diffusion of light emitted from a light source. The illumination device comprises: a touch sensor having a detection area provided with a plurality of detection elements; and a display panel having a display area that overlaps with the detection area of the touch sensor when viewed from above, wherein an adjustment screen for the diffusion of the illumination device is displayed in the display area, the adjustment screen having an adjustment area for adjusting the diffusion of the illumination device, and when a difference between a target value of the diffusion defined by a touch detection position within the adjustment area and a current value of the diffusion of the illumination device is greater than a first adjustment interval, the display value is adjusted at the first adjustment interval, and when the difference between the target value and the display value is less than the first adjustment interval, the diffusion of the illumination device is adjusted at a second adjustment interval narrower than the first adjustment interval. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1A This is a side view showing an example of a lighting device according to an embodiment.

[0012] Figure 1B It is a perspective view showing an example of an optical element according to an embodiment.

[0013] Figure 2 This is a schematic plan view of the first substrate as viewed from the Dz direction.

[0014] Figure 3 This is a schematic plan view of the second substrate as viewed from the Dz direction.

[0015] Figure 4 FIG. 1 is a perspective view of a liquid crystal cell in which a first substrate and a second substrate are overlapped in the Dz direction.

[0016] Figure 5 yes Figure 4 The AA' line cross-sectional view is shown.

[0017] Figure 6A It is a diagram showing the alignment direction of the alignment film of the first substrate.

[0018] Figure 6B It is a diagram showing the alignment direction of the alignment film of the second substrate.

[0019] Figure 7 It is a diagram of the stacked structure of the optical element according to the embodiment.

[0020] Figure 8A This is a conceptual diagram for explaining changes in the shape of light caused by the optical element according to the embodiment.

[0021] Figure 8B This is a conceptual diagram for explaining changes in the shape of light caused by the optical element according to the embodiment.

[0022] Figure 8C This is a conceptual diagram for explaining changes in the shape of light caused by the optical element according to the embodiment.

[0023] Figure 8D This is a conceptual diagram for explaining changes in the shape of light caused by the optical element according to the embodiment.

[0024] Figure 9 This is a conceptual diagram conceptually illustrating control of light diffusion by the lighting device according to the embodiment.

[0025] Figure 10 This is a schematic diagram showing an example of the configuration of a lighting system according to an embodiment.

[0026] Figure 11 This is an external view showing an example of a control device according to the embodiment.

[0027] Figure 12 This is a conceptual diagram showing an example of a touch detection area in a touch sensor.

[0028] Figure 13 This is a diagram showing an example of a control block configuration of the control device according to the first embodiment.

[0029] Figure 14 This is a diagram showing an example of a control block configuration of the lighting device according to the first embodiment.

[0030] Figure 15 This is a conceptual diagram showing an example of a display form of a lighting control application screen of the control device according to the first embodiment.

[0031] Figure 16 This is a diagram illustrating the relationship between the position on the lighting control application screen and the light diffusion degree of the control device according to the first embodiment.

[0032] Figure 17 This is a conceptual diagram showing an example of a first storage area of a storage circuit in the lighting device control device according to Embodiment 1.

[0033] Figure 18 This is a conceptual diagram showing an example of a second storage area of a storage circuit in the lighting device control device according to Embodiment 1.

[0034] Figure 19 This is a flowchart showing an example of initial setting processing in the lighting device control device according to the first embodiment.

[0035] Figure 20This is a flowchart showing an example of the overall flow of the lighting control process in the lighting device control device according to the first embodiment.

[0036] Figure 21 This is a flowchart showing an example of a lateral spread adjustment process in the control device of the lighting device according to the first embodiment.

[0037] Figure 22 This is a flowchart showing an example of a lateral spread coarse adjustment process in the control device of the lighting device according to the first embodiment.

[0038] Figure 23 This is a flowchart showing an example of a lateral spread fine adjustment process in the control device of the lighting device according to the first embodiment.

[0039] Figure 24 This is a flowchart showing an example of a longitudinal diffusion adjustment process in the control device of the lighting device according to the first embodiment.

[0040] Figure 25 This is a flowchart showing an example of a longitudinal spread coarse adjustment process in the control device of the lighting device according to the first embodiment.

[0041] Figure 26 This is a flowchart showing an example of a vertical diffusion fine adjustment process in the control device of the lighting device according to the first embodiment.

[0042] Figure 27A This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0043] Figure 27B This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0044] Figure 27C This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0045] Figure 27D This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0046] Figure 27E This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0047] Figure 27F This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0048] Figure 27G This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0049] Figure 27H This is a diagram showing a specific example of operation on the lighting control application screen of the control device according to the first embodiment.

[0050] Figure 28 This is a diagram showing an example of a control block configuration of a control device according to the second embodiment.

[0051] Figure 29 This is a diagram showing an example of a control block configuration of a lighting device according to Embodiment 2.

[0052] Figure 30 This is a conceptual diagram showing an example of a display form of a lighting control application screen of a control device according to the second embodiment.

[0053] Figure 31 This is a conceptual diagram showing an example of a first storage area of a storage circuit in a lighting device control device according to Embodiment 2.

[0054] Figure 32 This is a conceptual diagram showing an example of a second storage area of a storage circuit in a lighting device control device according to Embodiment 2.

[0055] Figure 33 This is a flowchart showing an example of initial setting processing in the control device of the lighting device according to the second embodiment.

[0056] Figure 34 This is a flowchart showing an example of the overall flow of lighting control processing in the lighting device control device according to Embodiment 2.

[0057] Figure 35 This is a flowchart showing an example of a diffusion adjustment process in the control device of the lighting device according to the second embodiment.

[0058] Figure 36 This is a flowchart showing an example of a coarse adjustment process of the degree of diffusion in the control device of the lighting device according to the second embodiment.

[0059] Figure 37 This is a flowchart showing an example of a diffusion degree fine adjustment process in the control device of the lighting device according to the second embodiment.

[0060] Figure 38A This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0061] Figure 38B This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0062] Figure 38CThis is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0063] Figure 38D This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0064] Figure 38E This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0065] Figure 38F This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0066] Figure 38G This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment.

[0067] Figure 38H This is a diagram showing a specific example of operations on the lighting control application screen of the control device according to the second embodiment. DETAILED DESCRIPTION

[0068] The method for implementing the invention (embodiment) is described in detail with reference to the accompanying drawings. The present invention is not limited to the contents described in the following embodiments. In addition, the constituent elements described below include elements that can be easily thought of by those skilled in the art, and substantially the same elements. Furthermore, the constituent elements described below can be appropriately combined. It should be noted that the disclosure is only an example, and appropriate changes that can be easily thought of by those skilled in the art while maintaining the gist of the invention are of course included in the scope of the present invention. In addition, in order to make the description clearer, the drawings sometimes schematically indicate the width, thickness, shape, etc. of each part compared to the actual method, but this is only an example and does not limit the interpretation of the present invention. In addition, in this specification and each figure, the same elements as those described previously with respect to the figures that have already appeared are sometimes marked with the same figure marks, and detailed descriptions are appropriately omitted.

[0069] Figure 1A It is a side view showing an example of the lighting device 1 according to the embodiment. Figure 1B 1 is a perspective view showing an example of an optical element 100 according to an embodiment. Figure 1A As shown, the lighting device 1 includes a light source 4, a reflector 4a and an optical element 100. Figure 1B As shown, the optical element 100 includes a first liquid crystal cell 2_1, a second liquid crystal cell 2_2, a third liquid crystal cell 2_3, and a fourth liquid crystal cell 2_4. The light source 4 is composed of, for example, a light emitting diode (LED). The reflector 4a is a component that focuses light from the light source 4 onto the optical element 100.

[0070] exist Figure 1B In the embodiment, the Dz direction indicates the emission direction of light from the light source 4 and the reflector 4a. The optical element 100 is configured by stacking the first liquid crystal cell 2_1, the second liquid crystal cell 2_2, the third liquid crystal cell 2_3, and the fourth liquid crystal cell 2_4 in the Dz direction. In the present disclosure, the optical element 100 is configured from the light source 4 side ( Figure 1B The first liquid crystal unit 2_1, the second liquid crystal unit 2_2, the third liquid crystal unit 2_3, and the fourth liquid crystal unit 2_4 are stacked in sequence. Figure 1B In the figure, a direction of a plane parallel to the stacking surface of the first liquid crystal unit 2_1, the second liquid crystal unit 2_2, the third liquid crystal unit 2_3 and the fourth liquid crystal unit 2_4 that is orthogonal to the same Dz direction is set as the Dx direction (first direction), and a direction orthogonal to both the Dx direction and the Dz direction is set as the Dy direction (second direction).

[0071] The first liquid crystal cell 2_1, the second liquid crystal cell 2_2, the third liquid crystal cell 2_3, and the fourth liquid crystal cell 2_4 all have the same structure. In this disclosure, the first liquid crystal cell 2_1 and the fourth liquid crystal cell 2_4 are liquid crystal cells for p-wave polarized light. The second liquid crystal cell 2_2 and the third liquid crystal cell 2_3 are liquid crystal cells for s-wave polarized light. Hereinafter, the first liquid crystal cell 2_1, the second liquid crystal cell 2_2, the third liquid crystal cell 2_3, and the fourth liquid crystal cell 2_4 are collectively referred to as "liquid crystal cell 2."

[0072] The liquid crystal cell 2 includes a first substrate 5 and a second substrate 6 . Figure 2 It is a schematic plan view of the first substrate 5 as viewed from the Dz direction. Figure 3 This is a schematic top view of the second substrate 6 viewed from the Dz direction. Figure 3 In FIG. 1 , the driving electrodes are visible through the substrate, but for ease of understanding, the driving electrodes and wiring are indicated by solid lines. Figure 4 : is a perspective view of a liquid crystal cell in which the first substrate 5 and the second substrate 6 are overlapped in the Dz direction. Figure 4 In the figure, the driving electrodes and wirings on the second substrate side are indicated by solid lines, and the driving electrodes and wirings on the first substrate side are indicated by dotted lines, giving priority to ease of understanding. Figure 5 yes Figure 4 The A-A' line cross-sectional view is shown. Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 , a third liquid crystal cell 2_3 and a fourth liquid crystal cell 2_4 are illustrated in which the driving electrodes 10a and 10b of the first substrate 5 extend in the Dx direction and the driving electrodes 13a and 13b of the second substrate 6 extend in the Dy direction.

[0073] like Figure 5 As shown, the liquid crystal cell 2 includes a liquid crystal layer 8 , the periphery of which is sealed by a sealing material 7 , between a first substrate 5 and a second substrate 6 .

[0074] The liquid crystal layer 8 modulates light passing through the liquid crystal layer 8 according to the state of the electric field. Although positive nematic liquid crystal is used as the liquid crystal molecules, other liquid crystals having the same function may be used.

[0075] like Figure 2 As shown, the liquid crystal layer 8 side of the base material 9 of the first substrate 5 is provided with: a plurality of drive electrodes 10a, 10b; a plurality of metal wirings 11a, 11b for supplying drive voltages applied to these drive electrodes 10a, 10b; and a plurality of drive electrodes 13a, 13b (see FIG. Figure 3 ) are applied to the plurality of metal wirings 11c, 11d. The metal wirings 11a, 11b, 11c, 11d are provided in the wiring layer of the first substrate 5. The metal wirings 11a, 11b, 11c, 11d are provided at intervals in the wiring layer on the first substrate 5. Hereinafter, the plurality of driving electrodes 10a, 10b are sometimes referred to as "driving electrodes 10". In addition, the plurality of metal wirings 11a, 11b, 11c, 11d are sometimes referred to as "first metal wirings 11". Figure 2 and Figure 7 As shown, in the third and fourth liquid crystal cells 2_3 and 2_4, the driving electrodes 10 on the first substrate 5 extend in the Dx direction. In addition, in the first and second liquid crystal cells 2_1 and 2_2, the driving electrodes 10 on the first substrate 5 extend in the Dy direction.

[0076] like Figure 3 As shown, in Figure 5 The liquid crystal layer 8 side of the base material 12 of the second substrate 6 shown is provided with a plurality of drive electrodes 13a, 13b and a plurality of metal wirings 14a, 14b for supplying a drive voltage applied to these drive electrodes 13. The metal wirings 14a, 14b are provided in the wiring layer of the second substrate 6. The metal wirings 14a, 14b are provided at intervals in the wiring layer on the second substrate 6. Hereinafter, the plurality of drive electrodes 13a, 13b are sometimes referred to as simply "drive electrodes 13". In addition, the plurality of metal wirings 14a, 14b are sometimes referred to as "second metal wirings 14". Figure 3 and Figure 7 As shown, in the third and fourth liquid crystal cells 2_3 and 2_4, the driving electrodes 13 on the second substrate 6 extend along the Dy direction. In addition, in the first and second liquid crystal cells 2_1 and 2_2, the driving electrodes 13 on the second substrate 6 extend along the Dx direction.

[0077] The drive electrodes 10 and 13 are translucent electrodes formed of a translucent conductive material (translucent conductive oxide) such as ITO (Indium Tin Oxide). The first substrate 5 and the second substrate 6 are translucent substrates such as glass or resin. The first metal wiring 11 and the second metal wiring 14 are formed of at least one metal material selected from aluminum (Al), copper (Cu), silver (Ag), molybdenum (Mo), or alloys thereof. In addition, the first metal wiring 11 and the second metal wiring 14 may be a laminate formed by stacking multiple layers using one or more of these metal materials. The electrical resistance of at least one metal material selected from aluminum (Al), copper (Cu), silver (Ag), molybdenum (Mo), or alloys thereof is lower than that of translucent conductive oxides such as ITO.

[0078] The metal wiring 11c of the first substrate 5 and the metal wiring 14a of the second substrate 6 are connected by a conductive portion 15a formed of, for example, a conductive paste. Furthermore, the metal wiring 11d of the first substrate 5 and the metal wiring 14b of the second substrate 6 are connected by a conductive portion 15b formed of, for example, a conductive paste.

[0079] Furthermore, in an area on the first substrate 5 that does not overlap with the second substrate 6 in the Dz direction, connection (Flex-on-Board) terminal portions 16a and 16b for connection to flexible printed circuits (FPCs) (not shown) are provided. Each of the connection terminal portions 16a and 16b includes four connection terminals corresponding to the metal wirings 11a, 11b, 11c, and 11d.

[0080] The connection terminals 16a and 16b are provided on the wiring layer of the first substrate 5. A driving voltage is supplied to the liquid crystal cell 2 from an FPC connected to the connection terminal 16a or the connection terminal 16b to the drive electrodes 10a and 10b on the first substrate 5 and the drive electrodes 13a and 13b on the second substrate 6. Hereinafter, the connection terminals 16a and 16b may be simply referred to as "connection terminal 16."

[0081] like Figure 4As shown, in the liquid crystal unit 2, the first substrate 5 and the second substrate 6 overlap in the Dz direction (the direction of light irradiation), and when viewed from the Dz direction, the multiple drive electrodes 10 on the first substrate 5 and the multiple drive electrodes 13 on the second substrate 6 intersect. The liquid crystal unit 2 constructed in this way can control the orientation direction of the liquid crystal molecules 17 of the liquid crystal layer 8 by supplying drive voltages to the multiple drive electrodes 10 on the first substrate 5 and the multiple drive electrodes 13 on the second substrate 6 respectively. The area in which the orientation direction of the liquid crystal molecules 17 of the liquid crystal layer 8 can be controlled is called the "effective area AA". In the effective area AA, by changing the refractive index distribution of the liquid crystal layer 8, the diffusion degree of the light passing through the effective area AA of the liquid crystal unit 2 can be controlled. In the area outside the effective area AA, the area in which the liquid crystal layer 8 is sealed by the sealing material 7 is called the "peripheral area GA" (refer to Figure 5 ).

[0082] like Figure 5 As shown, the active area AA of the first substrate 5 is covered by the alignment film 18 and the driving electrode 10 (in Figure 5 In addition, the active area AA of the second substrate 6 is covered with the driving electrode 13 (in Figure 5 In the alignment film 18 and the alignment film 19, the liquid crystal molecules are aligned in different directions.

[0083] Figure 6A It is a diagram showing the alignment direction of the alignment film of the first substrate 5 . Figure 6B It is a diagram showing the alignment direction of the alignment film of the second substrate 6 .

[0084] like Figure 6A as well as Figure 6B As shown in FIG. 1 , the orientation direction of the orientation film 18 of the first substrate 5 and the orientation direction of the orientation film 19 of the second substrate 6 are mutually intersecting directions when viewed from above. Specifically, as shown in FIG. Figure 6A As shown by the solid arrow, the orientation direction of the orientation film 18 of the first substrate 5 is the same as Figure 6A The extending directions of the driving electrodes 10a and 10b shown by the dotted arrows are orthogonal to each other. Figure 6B As shown by the solid arrow, the orientation direction of the orientation film 19 of the second substrate 6 is the same as Figure 6BThe extension directions of the drive electrodes 13a and 13b indicated by the dotted arrows are orthogonal. Below, the case where the extension directions of these drive electrodes 10 and 13 are orthogonal to the orientation directions of the orientation films 18 and 19 covering them will be described, but they may also intersect at angles other than orthogonal, for example, in the range of 85° to 90°. In addition, the drive electrodes 10 on the first substrate 5 side and the drive electrodes 13 on the second substrate 6 side are also preferably orthogonal to each other, but may also intersect at an angle of 85° to 90°, for example. In addition, the orientation directions of the orientation films 18 and 19 are formed by rubbing treatment or photo-alignment treatment.

[0085] Here, a mechanism by which the shape of light is changed by each liquid crystal cell 2 (the first liquid crystal cell 2_1 , the second liquid crystal cell 2_2 , the third liquid crystal cell 2_3 , and the fourth liquid crystal cell 2_4 ) will be described. Figure 7 It is a diagram of the stacked structure of the optical element 100 according to the embodiment. Figure 8A 、 Figure 8B 、 Figure 8C 、 Figure 8D This is a conceptual diagram for explaining the change in shape of light caused by the optical element 100 according to the embodiment. Figure 8A 、 Figure 8B 、 Figure 8C 、 Figure 8D , an example is shown in which a potential difference is generated between the driving electrodes of the hatched substrates of each liquid crystal cell 2 .

[0086] like Figure 7 As shown, the optical element 100 is arranged on the optical axis of the light source 4 shown by the single dot chain line. As described above, from the side of the light source 4 ( Figure 7 The first liquid crystal cell 2_1, the second liquid crystal cell 2_2, the third liquid crystal cell 2_3, and the fourth liquid crystal cell 2_4 are stacked in this order. The third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4 are stacked in a state rotated 90° relative to the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2.

[0087] In each liquid crystal cell 2, as Figure 6A and Figure 6B As shown, the alignment directions of the alignment films intersect on the first substrate 5 side and the second substrate 6 side. As a result, the orientation of the liquid crystal molecules in the liquid crystal layer 8 gradually changes from the Dx direction to the Dy direction (or vice versa) as they move from the first substrate 5 side to the second substrate 6 side, and the polarization component of the transmitted light rotates along this change. Specifically, in the liquid crystal cell 2, the polarization component that was p-polarized on the first substrate 5 side changes to an s-polarized component as it moves toward the second substrate 6 side, and the polarization component that was s-polarized on the first substrate 5 side changes to a p-polarized component as it moves toward the second substrate 6 side. This rotation of the polarization components is referred to as optical rotation.

[0088] Figure 8A This shows a state where no potential is generated between adjacent electrodes of each liquid crystal cell 2. In this case, only optical rotation occurs in each liquid crystal element 2, and any polarization component is not diffused.

[0089] Here, if Figure 8B As shown, for example, a potential difference is generated between the drive electrodes 10a and 10b on the first substrate 5 side of the first liquid crystal cell 2_1 to generate a transverse electric field, and the liquid crystal molecules are aligned in an arc shape between the electrodes, thereby forming a refractive index distribution along the Dx direction in the liquid crystal layer 8. If light from the light source 4 passes through in this state, the above-mentioned refractive index distribution acts on the polarization component parallel to the Dx direction (in Figure 8B The p-polarization component is diffused in the Dx direction.

[0090] Furthermore, when a potential difference is also generated between the drive electrodes 13a and 13b on the second substrate 6 side of the first liquid crystal cell 2_1, a refractive index distribution is formed in the Dy direction on the second substrate 6 side, causing the s-polarized component to diffuse in the Dy direction on the second substrate 6 side. In other words, the polarization component that changes from the p-polarized component to the s-polarized component while passing through the liquid crystal layer 8 of the first liquid crystal cell 2_1 also diffuses in the Dy direction. Meanwhile, light that was s-polarized upon entering the first liquid crystal cell 2_1 undergoes optical rotation while passing through the liquid crystal layer 8. However, since it becomes a polarization component that crosses any refractive index distribution, it does not diffuse and passes only through the first liquid crystal cell 2_1 in an optically rotated manner.

[0091] The light of the s-polarized component when incident on the first liquid crystal cell 2_1 changes to the p-polarized component after passing through the first liquid crystal cell 2_1, and the second liquid crystal cell 2_2 acts on the p-polarized component. Figure 8A and Figure 8B As shown, among the light incident on optical element 100, the first liquid crystal cell 2_1 acts on the p-polarized component, while the second liquid crystal cell 2_2 acts on the s-polarized component. The third and fourth liquid crystal cells 2_3 and 2_4 are arranged 90° rotated relative to the first and second liquid crystal cells 2_1 and 2_2, so the polarization components they act on are also swapped by 90°. That is, the third liquid crystal cell 2_3 acts on light that is s-polarized when incident on optical element 100, while the fourth liquid crystal cell 2_4 acts on light that is p-polarized when incident on optical element 100.

[0092] like Figure 8CAs shown, in the optical element, for each liquid crystal cell 2, a potential difference is applied between the drive electrodes extending in the Dy direction (between the drive electrodes 10a and 10b on the first substrate 5 in the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2, and between the drive electrodes 13a and 13b on the second substrate 6 in the third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4). This acts on the p-polarized component, thereby increasing the shape of light primarily in the Dx direction. This effect is referred to as lateral diffusion.

[0093] In addition, if Figure 8D As shown, for each liquid crystal cell 2, a potential difference is applied between the drive electrodes extending in the Dx direction (between the drive electrodes 13a and 13b on the second substrate 6 in the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2, and between the drive electrodes 10a and 10b on the first substrate 5 in the third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4). This acts on the s-polarized component, thereby increasing the shape of light primarily in the Dy direction. This effect is called longitudinal diffusion.

[0094] The degree of light diffusion in each direction depends on the potential difference between adjacent drive electrodes 10a and 10b (or between drive electrodes 13a and 13b). If the potential difference between drive electrodes 10a and 10b (or between drive electrodes 13a and 13b) is set to a predetermined maximum potential difference (e.g., 30 [V]), the diffusion of light in that direction is maximized (100 [%]). If no potential difference is generated at all, there is no diffusion of light in that direction (0 [%]). Alternatively, if the potential difference between drive electrodes 10a and 10b (or between drive electrodes 13a and 13b) is set to 50 [%] of the maximum potential difference (e.g., 15 V), the diffusion of light in that direction is 50 [%]. In addition, if the relationship between voltage difference and light diffusion is not linear, another potential difference may be used instead of 15 [V].

[0095] Furthermore, the spacing between the substrates of each liquid crystal cell 2 (between the first substrate 5 and the second substrate 6) (also known as the cell gap) is relatively wide, set to approximately 10 μm to 50 μm, and more preferably approximately 15 μm to 35 μm. This minimizes the effect of the electric field formed on one substrate from spreading to the other substrate. Furthermore, the drive voltage that creates a potential difference between adjacent drive electrodes 10 a and 10 b (or between drive electrodes 13 a and 13 b) is a so-called AC rectangular wave, thereby preventing image sticking of the liquid crystal molecules.

[0096] In addition, the orientation direction of each orientation film, the extension direction of the drive electrode of each substrate, and the angle between them can be appropriately changed for the entire optical element 100 or each liquid crystal unit 2 according to the characteristics of the liquid crystal used and the optical characteristics to be exerted.

[0097] In addition, in this embodiment, regarding the optical element 100, a structure in which four first liquid crystal units 2_1, second liquid crystal units 2_2, third liquid crystal units 2_3 and fourth liquid crystal units 2_4 are stacked is described, but it is not limited to this structure. For example, a structure in which two or three liquid crystal units 2 are stacked, or a structure in which five or more liquid crystal units 2 are stacked can also be adopted.

[0098] In the present disclosure, in the lighting device 1 constructed as described above, the light incident from the light source 4 to the optical element is controlled in two directions, the Dx direction (the direction of lateral diffusion) and the Dy direction (the direction of longitudinal diffusion), by controlling the driving voltage of each liquid crystal unit 2. In addition, the longitudinal diffusion and lateral diffusion described above may also be collectively referred to as light diffusion. And, thereby, the shape of the light emitted from the optical element is changed. The shape of the light refers to the shape of the light that appears on a surface parallel to the exit surface of the optical element, and it may also be referred to as a light distribution shape. Hereinafter, with reference to Figure 9 The control of light diffusion in the present disclosure will be described.

[0099] Figure 9 This is a conceptual diagram for conceptually explaining the control of light diffusion by the lighting device 1 according to the embodiment. Figure 9 , the irradiation range of light on a virtual plane xy perpendicular to the Dz direction is shown. Note that the outline of the actual irradiation range is slightly unclear due to the distance from the light source 4, the diffraction phenomenon of light, and the like.

[0100] As described above, by supplying drive voltages to the drive electrodes 10 and 13 of the liquid crystal cells 2 of the optical element 100 disposed on the optical axis of the light source 4, the alignment direction of the liquid crystal molecules 17 in the liquid crystal layer 8 is controlled.

[0101] Specifically, for example, as described above, the light distribution shape in the Dx direction changes (lateral diffusion) depending on the drive voltage applied to the drive electrodes 10 or 13 extending in the Dy direction in each liquid crystal cell 2. Furthermore, the light distribution shape in the Dy direction changes (vertical diffusion) depending on the drive voltage applied to the drive electrodes 10 or 13 extending in the Dx direction in the first to fourth liquid crystal cells.

[0102] In the present disclosure, the minimum diffusion degree of lateral diffusion and longitudinal diffusion is set to 0 [%], and the maximum diffusion degree is set to 100 [%]. More specifically, when the lateral diffusion degree is 0 [%], the drive electrode that functions to expand the light distribution state in the Dx direction (for example, the drive electrode 10 extending in the Dy direction in the first substrate 5 of the first liquid crystal cell 2_1) does not act on the refractive index distribution of the liquid crystal layer 8. In this case, there is no potential difference between adjacent drive electrodes 10a and 10b, or the electrodes are not supplied with a potential. On the other hand, when the lateral diffusion degree is 100 [%], the drive electrode that functions to expand the light distribution state in the Dx direction (for example, the drive electrode 10 extending in the Dy direction in the first substrate 5 of the first liquid crystal cell 2_1) has the maximum effect on the refractive index distribution of the liquid crystal layer 8. In this case, the potential difference between adjacent drive electrodes 10a and 10b is set to the maximum potential difference in the optical element 100 (for example, 30V). When the lateral diffusion is greater than 0% and less than 100%, a potential adjusted so that the potential difference between adjacent drive electrodes 10a and 10b is greater than 0V and less than the maximum potential difference (e.g., 30V) is applied to the electrodes.

[0103] Figure 9 The outline a shown illustrates the irradiation range on the virtual plane xy when both the lateral diffusion and the longitudinal diffusion are 100[%]. Figure 9 The outline b shown exemplifies the irradiation range on the virtual plane xy when the lateral diffusivity is 100% and the longitudinal diffusivity is 0%. Figure 9 The outline c shown shows an example of the irradiation range when the horizontal diffusion is 0% and the vertical diffusion is 100%. Figure 9 The outline d shown illustrates the irradiation range on the virtual plane xy when both the lateral and longitudinal diffusivities are 0%. In other words, the outline d represents the light distribution when light from light source 4 is emitted without any control by optical element 100 (so-called directly passing through optical element 100).

[0104] Thus, in the lighting device 1 having the above configuration, by individually controlling the drive voltage of each liquid crystal cell 2, the lateral and longitudinal divergence of the light emitted from the optical element 100 can be controlled. This allows the light distribution shape of the light emitted from the lighting device 1 on the virtual plane xy to be varied. Hereinafter, the control of varying the light distribution shape of the light emitted from the lighting device 1 onto the virtual plane xy by adjusting the lateral and longitudinal divergence of the light emitted from the lighting device 1 will also be referred to as "light distribution control."

[0105] Furthermore, while this disclosure illustrates an illumination device 1 capable of controlling light distribution in both the Dx and Dy directions, the parameters controllable in illumination device 1 are not limited to light distribution (spreading of light). For example, illumination device 1 may also be capable of dimming control. In this case, the parameters controllable in illumination device 1 may also include dimming (brightness).

[0106] Figure 10 This is a schematic diagram illustrating an example configuration of a lighting system according to an embodiment. The lighting system according to the embodiment includes multiple lighting devices 1_1, 1_2, ..., 1_N and a control device 200. Control device 200 is exemplified by a portable communication terminal device such as a smartphone or tablet. Each lighting device 1_1, 1_2, ..., 1_N is pre-registered in control device 200 as a controlled device whose light diffusion degree can be controlled by control device 200.

[0107] Each lighting device 1_1, 1_2, ..., 1_N exchanges data and various command signals with the control device 200 via a communication mechanism 300. In the present disclosure, the communication mechanism 300 is, for example, a wireless communication mechanism such as Bluetooth (registered trademark) or WiFi (registered trademark). Each lighting device 1_1, 1_2, ..., 1_N and the control device 200 may also communicate wirelessly via a predetermined network, such as a mobile communication network. Alternatively, each lighting device 1_1, 1_2, ..., 1_N and the control device 200 may be connected to a wired network for wired communication.

[0108] In addition, if Figure 10 As shown, in this disclosure, an example is shown in which N (N is a natural number greater than or equal to 1) lighting devices 1_n (n is a natural number between 1 and N) are used as control target devices in the control device 200. However, this disclosure is not limited to the number of control target devices (lighting devices 1_n) in the control device 200. Furthermore, in this disclosure, a method for controlling the light diffusion degree of each lighting device 1_n is described as a setting parameter for the control target device (lighting device 1_n). However, the setting parameter is not limited to light diffusion degree. For example, the setting parameter for the control target device (lighting device 1_n) may also include the light intensity and color temperature of the lighting device 1_n.

[0109] In addition, in the present disclosure, it is sufficient to register at least one lighting device 1 as a control target device. In the following, for ease of description, the process between the control device 200 and one lighting device 1 will be described.

[0110] Figure 11This is an external view of an example of a control device 200 according to an embodiment. Control device 200 is a display device (touch screen) with a touch detection function, integrating a display panel 20 and a touch sensor 30. Control device 200 includes various ICs, such as a detection IC and a display IC, as well as a CPU (Central Processing Unit), RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), ROM (Read Only Memory), and a GPU (Graphics Processing Unit), as internal components of a smartphone or tablet computer that constitutes control device 200.

[0111] The display panel 20 is a so-called in-cell or hybrid device that integrates the touch sensor 30. The display panel 20 having the touch sensor 30 integrated therein includes, for example, a case where some components, such as a substrate and electrodes, used for the display panel 20 are used in conjunction with some components, such as a substrate and electrodes, used for the touch sensor 30. Alternatively, the display panel 20 may be a so-called off-cell device in which the touch sensor 30 is mounted on a display device.

[0112] The display panel 20 may be, for example, a liquid crystal display panel using a liquid crystal display element, but is not limited thereto and may be, for example, an organic EL display panel (OLED: Organic Light Emitting Diode) or an inorganic EL display panel (micro LED, mini LED).

[0113] An electrostatic capacitance touch sensor is exemplified as the touch sensor 30 , but the touch sensor 30 is not limited thereto and may be, for example, a resistive film touch sensor, an ultrasonic touch sensor, or an optical touch sensor.

[0114] Figure 12 This is a conceptual diagram illustrating an example of a touch detection area in the touch sensor 30. Multiple detection elements 31 are provided in the detection area FA of the touch sensor 30. The multiple detection elements 31 are arranged in a matrix along the X direction and the Y direction, which is perpendicular to the X direction, within the detection area FA of the touch sensor 30. In other words, the touch sensor 30 has a detection area FA that overlaps with the multiple detection elements 31 arranged in the X and Y directions.

[0115] (Implementation 1)

[0116] Hereinafter, the configuration and operation for controlling the light diffusion degree of the lighting device 1 in the control device 200 of the lighting system according to the first embodiment will be described.

[0117] Figure 13 1 is a diagram showing an example of a control block configuration of the control device 200 according to Embodiment 1. Here, first, a control block configuration for executing each process described later will be described.

[0118] like Figure 13 As shown, the control device 200 of embodiment 1 includes a display panel 20, a touch sensor 30, a detection circuit 211, a conversion processing circuit 212, a storage circuit (first storage circuit) 223, a transceiver circuit 225, and a display control circuit 231. The detection circuit 211 is composed of, for example, a detection IC. Alternatively, the detection circuit 211 and the display control circuit 231 may be mounted on the display panel 20 as a display IC, or mounted on an FPC connected to the display panel 20. The conversion processing circuit 212 and the storage circuit 223 may be composed of, for example, a CPU, RAM, EEPROM, ROM, etc. of a smartphone, tablet computer, etc. constituting the control device 200. In addition, the display control circuit 231 may also be a display IC mounted on the display panel 20 as described above, and further, for example, may be composed of a GPU, etc. of a smartphone, tablet computer, etc. constituting the control device 200. The transceiver circuit 225 is composed of, for example, a wireless communication module of a smartphone, tablet computer, etc. constituting the control device 200.

[0119] The detection circuit 211 is a circuit that detects the presence or absence of a touch on the touch sensor 30 based on the detection signal output from each detection element 31 of the touch sensor 30 .

[0120] The conversion processing circuit 212 performs conversion processing between the touch detection position in the detection circuit 211 and various set values (light diffusion in this disclosure) of the lighting device 1. Furthermore, in this disclosure, the conversion processing circuit 212 has the function of performing conversion processing between the touch detection position in the detection circuit 211, and thus the touched object (image), and various on-screen operation states. The conversion processing circuit 212 is implemented, for example, by the CPU of a smartphone, tablet computer, or the like that constitutes the control device 200.

[0121] The storage circuit 223 is comprised of, for example, RAM, EEPROM, or ROM of a smartphone, tablet, or the like that constitutes the control device 200. In the present disclosure, the storage area of the storage circuit 223 stores various parameter values and setting values required for operating the lighting control application of Embodiment 1, which will be described later. The various parameter values and setting values required for operating the lighting control application of Embodiment 1 will be described later.

[0122] The transceiver circuit 225 transmits and receives setting information to and from the lighting device 1. Specifically, the transceiver circuit 225 transmits the light diffusion degree S1x in the Dx direction and the light diffusion degree S1y in the Dy direction as first setting information to the lighting device 1 in each process described below. Furthermore, the transceiver circuit 225 receives second light diffusion degree information (light diffusion degree S2x in the Dx direction and light diffusion degree S2y in the Dy direction) transmitted from the lighting device 1.

[0123] The display control circuit 231 performs display control processing for displaying a coarse adjustment mode screen or a fine adjustment mode screen (described later) on the display panel 20. In the present disclosure, the display control circuit 231 performs display control on the display panel 20 based on various setting information and image position information stored in the storage area of the storage circuit 223.

[0124] Figure 14 1 is a diagram showing an example of a control block configuration of the lighting device 1 according to the first embodiment. Figure 14 As shown, the lighting device 1 of the first embodiment includes a transceiver circuit 111, an electrode drive circuit 112, and a storage circuit (second storage circuit) 113 as a control block for controlling the optical element 100. The storage circuit 113 is composed of, for example, RAM, EEPROM, or ROM.

[0125] The transceiver circuit 111 transmits and receives light diffusion information to and from the control device 200. Specifically, the transceiver circuit 111 receives the first light diffusion information (light diffusion S1x in the Dx direction and light diffusion S1y in the Dy direction) transmitted from the control device 200. Furthermore, the transceiver circuit 111 transmits the light diffusion S2x in the Dx direction and the light diffusion S2y in the Dy direction stored in the storage circuit 113 to the control device 200 as second light diffusion information.

[0126] In the present disclosure, when the lighting device 1 is activated, the transceiver circuit 111 transmits the Dx-direction light diffusion S2x and Dy-direction light diffusion S2y stored in the storage circuit 113 to the control device 200 as the second light diffusion information. The first light diffusion information (Dx-direction light diffusion S1x and Dy-direction light diffusion S1y) transmitted from the control device 200 through various processes of the control device 200, described later, is stored in the storage circuit 113 as the new Dx-direction light diffusion S2x and Dy-direction light diffusion S2y. In other words, by transmitting the first light diffusion information from the control device 200 to the lighting device 1, the second light diffusion information is updated to the first light diffusion information. Initially, the lighting device 1 does not store the second light diffusion information (both the longitudinal and lateral diffusion values are 0 [%]). In this case, the second light diffusion information is stored by transmitting the first light diffusion information from the control device 200.

[0127] The electrode driving circuit 112 supplies a driving voltage corresponding to the Dx direction light diffusion degree S2x and the Dy direction light diffusion degree S2y stored in the storage circuit 113 to each driving electrode 10 , 13 of each liquid crystal cell 2 of the optical element 100 .

[0128] Specifically, when the lighting device 1 is activated, the electrode driving circuit 112 supplies a driving voltage according to the second setting information stored in the storage circuit 113 to each driving electrode 10 , 13 of each liquid crystal cell 2 of the optical element 100 .

[0129] Furthermore, the electrode driving circuit 112 supplies a driving voltage corresponding to the second setting information updated based on the first setting information transmitted from the control device 200 to each driving electrode 10 , 13 of each liquid crystal cell 2 of the optical element 100 .

[0130] The processes of the lighting system in the present disclosure are executed by application software (hereinafter also referred to as "lighting control application") running on the control device 200. Specific examples of the processes and display formats in the lighting control application running on the control device 200 in Embodiment 1 are described in detail below.

[0131] Figure 15 This is a conceptual diagram showing an example of a display format of the lighting control application screen 400 of the control device 200 according to the first embodiment.

[0132] In the present disclosure, description will be given assuming that the lighting control application is installed in advance in the control device 200 .

[0133] If you start the lighting control application, it will display Figure 15 The lighting control application screen 400 (adjustment screen) shown in FIG. 1 shows a pairing process between the control device 200 and the lighting device 1 that has been pre-registered as a control target device by the control device 200. Alternatively, a pairing button (not shown) may be displayed on the lighting control application screen 400, and the user may touch the pairing button to execute the pairing process between the control device 200 and the lighting device 1. Alternatively, when the lighting control application is first started, for example, a lighting device 1 that is activated in a pairing-capable space may be registered as a control target device.

[0134] exist Figure 15 In the illustrated lighting control application screen 400, the X direction is defined as corresponding to the Dx direction (first direction) in the light diffusion control of the lighting device 1, and the Y direction is defined as corresponding to the Dy direction (second direction) in the light diffusion control of the lighting device 1. Furthermore, the lighting control application screen 400 defines an XY plane with an origin O(0,0) at a predetermined position on the display area DA.

[0135] The display panel 20 is provided with a display area DA that overlaps with the detection area FA of the touch sensor 30 in a plan view. Figure 15 In the example shown, a light distribution shape object OBJ is displayed with the origin O(0, 0) of the XY plane on the lighting control application screen 400 as the center point.

[0136] The light distribution shape object OBJ is an image corresponding to the light distribution state of light emitted from the lighting device 1 on the lighting control application screen 400 .

[0137] In the configuration of the first embodiment, the shape of the light distribution shape object OBJ on the lighting control application screen 400 changes to a circular shape or an elliptical shape according to the lateral spread and the longitudinal spread.

[0138] like Figure 9 As shown, in the lighting device 1 that is the control object in the present disclosure, even when both the lateral diffusion and the longitudinal diffusion of the lighting device 1 are set to 0[%], light is irradiated to a predetermined substantially circular range corresponding to the outline d. In the present disclosure, when both the lateral diffusion and the longitudinal diffusion are set to 0[%], the display Figure 15 The light distribution shape object OBJ is a small circular shape that overlaps with the inner dotted line. In addition, when both the lateral diffusion and the longitudinal diffusion of the lighting device 1 are set to 100[%], Figure 9 The contour a correspondingly shows Figure 15 The light distribution shape object OBJ shown is a large circular shape that overlaps with the outer dotted line.

[0139] In embodiment 1, as Figure 15 As shown, a first adjustment area TA1 is provided as an area capable of acquiring a touch detection position in the X direction for setting the lateral diffusion. The first adjustment area TA1 is set to allow adjustment of the light distribution shape in the X direction over the entire range from a minimum value (0%) to a maximum value (100%).

[0140] Within the first adjustment area TA1, touch position detection in the X direction is possible between a position on the outline of the light distribution shape object OBJ when the lateral diffuseness is 0% and a position on the outline of the light distribution shape object OBJ when the lateral diffuseness is 100%. In the first embodiment, lateral diffuseness adjustment can be performed by detecting the touch position in the X direction within the first adjustment area TA1.

[0141] Furthermore, in this disclosure, Figure 15As shown, a second adjustment area TA2 is provided as an area where a touch detection position in the Y direction can be obtained for setting the vertical spread. The second adjustment area TA2 is set to a range where the light distribution shape in the Y direction can be adjusted over the entire range from a minimum value (0%) to a maximum value (100%).

[0142] Within the second adjustment area TA2, Y-direction touch position detection is possible between a position on the outline of the light distribution shape object OBJ when the vertical diffusivity is 0% and a position on the outline of the light distribution shape object OBJ when the vertical diffusivity is 100%. In the first embodiment, vertical diffusivity adjustment can be performed by detecting the Y-direction touch position within the second adjustment area TA2.

[0143] Figure 16 This diagram illustrates the relationship between position and light diffusion in lighting applications in control device 200 according to Embodiment 1. In this disclosure, for ease of explanation, positions (coordinates) on the display area DA of the display panel 20 are assumed to be equivalent to positions (coordinates) on the detection area FA of the touch sensor 30.

[0144] On the lighting control application screen 400 of the control device 200 according to the first embodiment, the lateral spread of the lighting device 1 can be set by the position x0 of the intersection of the X axis of the XY plane and the outline of the light distribution shape object OBJ.

[0145] In the first embodiment, the position x0 on the display area DA within the first adjustment area TA1 overlaps with the position of the intersection of the X-axis and the outline of the light distribution shape object OBJ, and is a position corresponding to the lateral diffusion of the lighting device 1. Alternatively, a pointer (a slider or other image image) indicating the X-direction position of the light distribution shape object OBJ with the position x0 on the display area DA as the center point may be displayed at the position of the intersection of the X-axis and the outline of the light distribution shape object OBJ within the first adjustment area TA1. Figure 16 The "Sx" displayed near position x0 on the display area DA in the first adjustment area TA1 represents the lateral spread of the lighting device 1 (e.g., "50" [%]). As position x0 on the display area DA moves within the first adjustment area TA1, the shape of the light distribution shape object OBJ in the X direction changes. The relationship between position x0 on the display area DA within the first adjustment area TA1 and lateral spread Sx is shown below.

[0146] If the intersection of the X axis and the outline of the light distribution shape object OBJ when the lateral diffusion degree Sx is 100[%] is set as X 100, let X0 be the intersection of the X axis and the contour line of the light distribution shape object OBJ when the lateral diffusion Sx is 0[%], then the reference movement amount Px in the X direction on the XY plane when the change in the lateral diffusion of the lighting device 1 by one level is 1[%] is expressed by the following formula (1).

[0147] Px=(X 100 -X0) / 100···(1)

[0148] The relationship between the lateral diffusion Sx and the position x0 on the display area DA on the XY plane is expressed by the following equations (2) and (3) using the above equation (1).

[0149] Sx=(x0-X0) / Px···(2)

[0150] x0=Sx×Px+X0···(3)

[0151] Furthermore, on the lighting control application screen 400 of the control device 200 according to the first embodiment, the longitudinal divergence of the lighting device 1 can be set by the position y0 of the intersection of the Y axis of the XY plane and the outline of the light distribution shape object OBJ.

[0152] In the present disclosure, the position y0 on the display area DA within the second adjustment area TA2 overlaps with the position of the intersection of the Y axis and the outline of the light distribution shape object OBJ, and is a position corresponding to the longitudinal diffusion of the lighting device 1. In addition, a pointer (a slider or other image image) indicating the Y-direction position of the light distribution shape object OBJ with the position y0 on the display area DA as the center point may be displayed at the position of the intersection of the Y axis and the outline of the light distribution shape object OBJ within the second adjustment area TA2. Figure 16 The symbol "Sy" displayed near position y0 on the display area DA in the second adjustment area TA2 represents the longitudinal divergence of the lighting device 1 (e.g., "50" [%]). As position y0 on the display area DA moves within the second adjustment area TA2, the shape of the light distribution shape object OBJ in the Y direction changes. The relationship between position y0 on the display area DA within the second adjustment area TA2 and longitudinal divergence Sy is shown below.

[0153] If the intersection of the Y axis and the outline of the light distribution shape object OBJ when the longitudinal diffusion degree Sy is 100[%] is set as Y 100 , let Y0 be the intersection of the Y axis and the contour line of the light distribution shape object OBJ when the longitudinal diffusion Sy is 0[%], then the reference movement amount Py in the Y direction on the XY plane when the change of one level of the longitudinal diffusion of the lighting device 1 is 1[%] is expressed by the following formula (4).

[0154] Py=(Y 100-Y0) / 100···(4)

[0155] The relationship between the longitudinal diffusion degree Sy and the position y0 on the display area DA on the XY plane is expressed by the following equations (5) and (6) using the above equation (4).

[0156] Sy=(y0-Y0) / Py···(5)

[0157] y0=Sy×Py+Y0···(6)

[0158] In the first embodiment, the control device 200 transitions to the spread adjustment process upon detecting a sustained touch state within the first adjustment area TA1 or the second adjustment area TA2 on the lighting control application screen 400. Hereinafter, a sustained touch state within the first adjustment area TA1 or the second adjustment area TA2 is also referred to as a "long press state."

[0159] In the first embodiment, the “long press state” indicates a state in which the duration T1 of the touch in the first adjustment area TA1 or the second adjustment area TA2 exceeds a predetermined long press detection time (first time threshold) T1th (eg, 2 [sec]).

[0160] Figure 17 This is a conceptual diagram showing an example of a first storage area of the storage circuit 223 in the control device 200 of the lighting device 1 according to the first embodiment. Figure 18 This is a conceptual diagram showing an example of the second storage area of storage circuit 223 in control device 200 of lighting device 1 according to Embodiment 1. The first storage area stores various parameter values (variables) required for executing a lighting control application. The second storage area of storage circuit 223 stores various setting values used in the lighting control application.

[0161] In the first embodiment, in the first storage area of the storage circuit 223, as shown in FIG. Figure 17As shown, the horizontal diffuseness display value Sx, the vertical diffuseness display value Sy, the X-direction position display value x0 of the light distribution shape object OBJ, and the Y-direction position display value y0 of the light distribution shape object OBJ on the lighting control application screen 400 are stored. The horizontal diffuseness display value Sx represents the current value of the horizontal diffuseness of the lighting device 1 defined by the X-direction position display value x0 of the light distribution shape object OBJ. The vertical diffuseness display value Sy represents the current value of the vertical diffuseness of the lighting device 1 defined by the Y-direction position display value y0 of the light distribution shape object OBJ. The first storage area also stores the X-direction touch position detection value x'0 within the first adjustment area TA1, the Y-direction touch position detection value y'0 within the second adjustment area TA2, detected during the lighting control process according to Embodiment 1 described later, a horizontal spread target value Sx' calculated based on the X-direction touch position detection value x'0, a vertical spread target value Sy' calculated based on the Y-direction touch position detection value y'0, a horizontal spread difference value ΔSx, which is the difference between the horizontal spread target value Sx' and the horizontal spread display value Sx, and a vertical spread difference value ΔSy, which is the difference between the vertical spread target value Sy' and the vertical spread display value Sy. The horizontal spread target value Sx' is calculated based on the X-direction touch position detection value x'0 within the first adjustment area TA1. In other words, the horizontal spread target value Sx' is defined by the X-direction touch position detection value x'0 within the first adjustment area TA1. Furthermore, the vertical spread target value Sy' is calculated based on the Y-direction touch position detection value y'0 within the second adjustment area TA2. That is, the vertical spread target value Sy′ is a value defined by the Y-direction touch position detection value y′0 within the second adjustment area TA2 .

[0162] The lateral diffusivity of the lighting device 1 is changed at different adjustment scales based on the magnitude of the lateral diffusivity difference ΔSx calculated every predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) during the lighting control process of Embodiment 1, described later. Furthermore, the longitudinal diffusivity of the lighting device 1 is changed at different adjustment scales (change steps) based on the magnitude of the longitudinal diffusivity difference ΔSy calculated every predetermined set value change time (second time threshold) T2th during the lighting control process of Embodiment 1, described later.

[0163] In the first embodiment, in the second storage area of the storage circuit 223, as shown in FIG. Figure 18 As shown, the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval), the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval), the lateral diffusion fine adjustment scale setting value SSCx (second adjustment interval), and the longitudinal diffusion fine adjustment scale setting value SSCy (second adjustment interval) are stored.

[0164] The coarse adjustment scale setting value LSCx for the horizontal diffusion degree and the coarse adjustment scale setting value LSCy for the vertical diffusion degree are, for example, 20% [%.] The fine adjustment scale setting value SSCx for the horizontal diffusion degree and the fine adjustment scale setting value SSCy for the vertical diffusion degree are, for example, 1% [%.] Furthermore, these adjustment scales are merely examples and are not limited to the above. For example, the coarse adjustment scale setting value LSCx for the horizontal diffusion degree and the coarse adjustment scale setting value LSCy for the vertical diffusion degree may be, for example, 10% [%] or 30% [%.] Alternatively, the fine adjustment scale setting value SSCx for the horizontal diffusion degree and the fine adjustment scale setting value SSCy for the vertical diffusion degree may be, for example, 0.5% [%] or 2% [%.] In the first embodiment, the horizontal spread fine adjustment scale setting value SSCx (the second adjustment interval) can be set at a narrower interval (variation range) than the horizontal spread coarse adjustment scale setting value LSCx (the first adjustment interval), and the vertical spread fine adjustment scale setting value SSCy (the second adjustment interval) can be set at a narrower interval (variation range) than the vertical spread coarse adjustment scale setting value LSCy (the first adjustment interval). Furthermore, these horizontal spread coarse adjustment scale setting value LSCx, vertical spread coarse adjustment scale setting value LSCy, horizontal spread fine adjustment scale setting value SSCx, and vertical spread fine adjustment scale setting value SSCy can also be user-configurable in the lighting control application.

[0165] Hereinafter, a specific example of the processing in the control device 200 of the lighting device 1 according to the above-mentioned first embodiment will be described.

[0166] The above-described processing during execution of the lighting control application is implemented by application software executed on a CPU of a smartphone, tablet computer, or the like constituting the control device 200 , for example. Figure 19 This is a flowchart showing an example of initial setting processing in the control device 200 of the lighting device 1 according to the first embodiment.

[0167] When the lighting control application is started on the control device 200, the display area DA is displayed. Figure 15 The lighting control application screen 400 is shown (step S001).

[0168] Before the lighting control application is activated, the lighting device 1 pre-registered in the space that can be paired with the control device 200 is activated.

[0169] The transceiver circuit 225 of the control device 200 performs pairing processing (step S002) with the lighting device 1 that has been pre-registered as a control target device and is activated in a space that can be paired with the control device 200, and sends a request command for the second setting information to the control target device (lighting device 1) (step S003).

[0170] The transceiver circuit 111 of the lighting device 1 reads the second setting information stored in the storage circuit 113 and transmits it to the control device 200. Furthermore, the electrode drive circuit 112 of the lighting device 1 supplies a drive voltage corresponding to the second setting information to each drive electrode 10, 13 of each liquid crystal cell 2 of the optical element 100.

[0171] The transceiver circuit 225 of the control device 200 determines whether the second setting information has been received from the lighting device 1 (step S004). If the second setting information has not been received from the lighting device 1 (step S004; No), the process of step S004 is repeatedly executed.

[0172] If the second setting information is received from the lighting device 1 (step S004; yes), the transceiver circuit 225 uses the light diffusion S2x in the Dx direction in the second setting information of the lighting device 1 as the lateral diffusion display value Sx, and uses the light diffusion S2y in the Dy direction as the longitudinal diffusion display value Sy, and stores them in Figure 17 In the first storage area of the storage circuit 223 shown (step S005).

[0173] In addition, the first storage area stores the initial value of the horizontal diffusion degree Sx_ini (e.g., 50%) and the initial value of the vertical diffusion degree Sy_ini (e.g., 50%). For example, the following form may be adopted: when the lighting device 1 is first activated, or when the lighting device 1 activated in the pairing space is registered as the control target device, the initial value of the horizontal diffusion degree Sx_ini (e.g., 50%) may be stored instead of the processing of the above steps S003 to S005. Figure 17 50[%]) as the horizontal diffusion display value Sx, and the vertical diffusion initial value Sy_ini (for example Figure 17 The 50% shown in the figure is used as the vertical diffusivity display value Sy. For the registered lighting device 1, the lateral diffusivity display value Sx and the vertical diffusivity display value Sy are transmitted as the first setting information (S1x, S1y). In this case, the transceiver circuit 111 of the lighting device 1 stores the first setting information (S1x, S1y) received from the control device 200 in the storage circuit 113 as the second setting information (S2x, S2y). Furthermore, the electrode drive circuit 112 of the lighting device 1 supplies a drive voltage corresponding to the second setting information to each drive electrode 10, 13 of each liquid crystal cell 2 in the optical element 100.

[0174] The control device 200 calculates the X-direction position display value x0 of the light distribution shape object OBJ based on the lateral diffusion display value Sx stored in the first storage area of the storage circuit 223 using the above formula (3), and calculates the Y-direction position display value y0 of the light distribution shape object OBJ based on the longitudinal diffusion display value Sy stored in the first storage area using the above formula (6) (step S006), and stores them in the first storage area.

[0175] The display control circuit 231 of the control device 200 reflects the lateral diffusion display value Sx, the X-direction position display value x0 of the light distribution shape object OBJ, the longitudinal diffusion display value Sy, and the Y-direction position display value y0 of the light distribution shape object OBJ obtained in the above processing and stored in the first storage area of the storage circuit 223 as display control on the lighting control application screen 400 (step S007).

[0176] If the processing up to step S007 is completed, the system moves to a standby state (step S008), and then moves to Figure 20 The lighting control process shown (step S100). Figure 20 This is a flowchart showing an example of the overall flow of the lighting control process in the control device 200 of the lighting device 1 according to the first embodiment.

[0177] exist Figure 20 In the illustrated standby state (step S101 ), the control device 200 executes touch detection processing in the first adjustment area TA1 and the second adjustment area TA2 (steps S102 and S103 ).

[0178] Specifically, for example, if the control device 200 does not detect a touch in the first adjustment area TA1 (step S102: No), it performs touch detection in the second adjustment area TA2 (step S103). However, the present invention is not limited thereto, and the control device 200 may also perform touch detection in the first adjustment area TA1 if a touch in the second adjustment area TA2 is not detected.

[0179] If neither a touch in the first adjustment area TA1 nor a touch in the second adjustment area TA2 is detected (step S102: No, step S103: No), the process returns to the standby state of step S101 and repeats the processes of steps S101 to S103. The execution interval of the processes of steps S101 to S103 is, for example, 10 ms.

[0180] When a touch is detected in the first adjustment area TA1 (step S102; yes), the process moves to Figure 21 The lateral diffusion adjustment process is shown (step S200). Figure 21This is a flowchart showing an example of the lateral spread adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0181] When moved to Figure 21 During the illustrated lateral spread adjustment process, the control device 200 resets the count value T1 of the first timer that counts the duration of the touch within the first adjustment area TA1 ( T1 =0, step S201 ).

[0182] Next, the control device 200 determines whether the count value T1 of the first timer has exceeded a predetermined long press detection time (first time threshold) T1th (e.g., 2 seconds) (step S202). For example, if 10 milliseconds is set as one count, the long press detection time (first time threshold) T1th is set to 200 counts (T1th = 200). Note that the long press detection time (first time threshold) T1th is not limited to 2 seconds (= 200).

[0183] If the count value T1 of the first timer is less than the predetermined long press detection time T1th (T1<T1th, step S202; No), the control device 200 then determines whether the touch state in the first adjustment area TA1 continues (step S203). If the touch state in the first adjustment area TA1 does not continue (step S203; No), that is, if the user's finger leaves the screen or the touch detection position deviates from the first adjustment area TA1, the control device 200 returns to the state of touch detection. Figure 20 In the illustrated lighting control process, the control state of the lateral spread of the lighting device 1 is not adjusted and the lighting control process shifts to a standby state (step S101 ).

[0184] If the touch state in the first adjustment area TA1 continues (step S203 ; Yes), the processes of steps S202 to S203 are repeatedly executed until the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S202 ; No).

[0185] If the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S202; yes), the control device 200 determines that the state is a long press (step S204), resets the count value T2 of the second timer that counts the predetermined set value change time (second time threshold) T2th (T2=0, step S205), detects the touch position in the X direction within the first adjustment area TA1, and stores it as the X direction touch position detection value x'0 in Figure 17 The first storage area of the storage circuit 223 shown in FIG. 206 is used to calculate the horizontal spread target value Sx' corresponding to the X-direction touch position detection value x'0 (step S207), and the target value Sx' is stored in the storage area. Figure 17The first storage area shown in FIG. 1 . The X-direction touch position detection value x'0 in the first adjustment area TA1 is a position different from the X-direction position display value x0 of the light distribution shape object OBJ.

[0186] Then, the control device 200 reads out the lateral diffusion display value Sx and the lateral diffusion target value Sx' from the first storage area, calculates the lateral diffusion difference ΔSx (ΔSx = Sx'-Sx, step S208), and determines whether the size of the lateral diffusion difference ΔSx |ΔSx| is smaller than the size of the lateral diffusion fine-tuning scale setting value SSCx (second adjustment interval) |SSCx| (step S209).

[0187] When the size |ΔSx| of the lateral diffusion difference ΔSx is greater than the size |SSCx| of the lateral diffusion fine-tuning scale setting value SSCx (step S209; no), the control device 200 then determines whether the size |ΔSx| of the lateral diffusion difference ΔSx is greater than the size |LSCx| of the lateral diffusion coarse-tuning scale setting value LSCx (step S211).

[0188] If the magnitude of the lateral diffusion difference ΔSx |ΔSx| is greater than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx| (step S211; yes), the execution Figure 22 Coarse adjustment of lateral diffusion is shown. Figure 22 This is a flowchart showing an example of the lateral spread coarse adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0189] The control device 200 reads the sign of the lateral diffusivity difference ΔSx and determines the adjustment direction of the lateral diffusivity display value Sx relative to the lateral diffusivity target value Sx'. Specifically, the control device 200 determines whether the sign of the lateral diffusivity difference ΔSx is "+ (positive)" (step S221).

[0190] If the sign of the lateral diffusion difference ΔSx is "+ (positive value)" (step S221; yes), it means that the adjustment direction of the lateral diffusion display value Sx relative to the lateral diffusion target value Sx' is the direction of increasing the lateral diffusion of the lighting device 1. At this time, the control device 200 adds the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval) to the lateral diffusion display value Sx (step S222) to update the lateral diffusion display value Sx. In addition, the control device 200 calculates the X-direction position display value x0 of the light distribution shape object OBJ corresponding to the lateral diffusion display value Sx (step S223) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0191] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) (step S224). For example, when 10 [ms] is set as one count, the set value change time (second time threshold) T2th is set to 50 counts (T2th = 50). Note that the set value change time (second time threshold) T2th is not limited to 0.5 [sec] (= 50).

[0192] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S224; No), the process of step S224 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S224; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S224; Yes), the display control circuit 231 of the control device 200 causes the display control of the lighting control application screen 400 to reflect the lateral spread display value Sx and the X-direction position display value x0 of the light distribution shape object OBJ acquired and stored in the first storage area of the storage circuit 223 during the above process (step S225). Furthermore, the transceiver circuit 225 of the control device 200 reads the lateral spread degree display value Sx stored in the first storage area, and transmits the read lateral spread degree display value Sx as the first setting information (S1x=Sx) to the lighting device 1 (step S226).

[0193] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0194] return Figure 21 , the control device 200 determines whether the long press state continues (step S210). If the long press state does not continue (step S210; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the first adjustment area TA1, the control device 200 returns to the first adjustment area TA1. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current lateral diffuseness display value Sx is determined to reflect the lateral diffuseness control state of the lighting device 1 .

[0195] If the long press state continues (step S210; yes), the process returns to step S205. Here, if the long press state continues (step S210; yes), the magnitude of the lateral diffusion degree difference ΔSx |ΔSx| is greater than the magnitude of the lateral diffusion degree coarse adjustment scale setting value LSCx |LSCx| (step S211; yes), and the sign of the lateral diffusion degree difference ΔSx is "+ (positive value)" ( Figure 22 Step S221; Yes), the above-mentioned lateral diffusion degree coarse adjustment process (steps S220, Figure 22 ) continues from step S205 to step S210 until the magnitude of the lateral diffusion difference ΔSx, |ΔSx|, becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx, |LSCx| (step S211 returns No). Thus, coarse adjustment is performed in the direction of increasing the lateral diffusion display value Sx by the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval).

[0196] return Figure 22 , when the sign of the lateral diffusion difference ΔSx is "-(negative value)" (step S221; No), it means that the adjustment direction of the lateral diffusion display value Sx relative to the lateral diffusion target value Sx' is the direction of reducing the lateral diffusion of the lighting device 1. At this time, the control device 200 subtracts the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval) from the lateral diffusion display value Sx (step S227) to update the lateral diffusion display value Sx. In addition, the control device 200 calculates the X-direction position display value x0 of the light distribution shape object OBJ corresponding to the lateral diffusion display value Sx (step S228) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0197] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S229 ).

[0198] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S229; No), the process of step S229 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S229; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S229; Yes), the display control circuit 231 of the control device 200 causes the lateral spread display value Sx and the X-direction position display value x0 of the light distribution shape object OBJ, acquired and stored in the first storage area of the storage circuit 223 during the above process, to be reflected in the display control on the lighting control application screen 400 (step S230). Furthermore, the transceiver circuit 225 of the control device 200 reads the lateral spread degree display value Sx stored in the first storage area, and transmits the read lateral spread degree display value Sx as the first setting information ( S1x=Sx) to the lighting device 1 (step S231 ).

[0199] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0200] return Figure 21 , the control device 200 determines whether the long press state continues (step S210). If the long press state does not continue (step S210; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the first adjustment area TA1, the control device 200 returns to the first adjustment area TA1. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current lateral diffuseness display value Sx is determined to reflect the lateral diffuseness control state of the lighting device 1 .

[0201] If the long press state continues (step S210; yes), the process returns to step S205. Here, if the long press state continues (step S210; yes), the magnitude of the lateral diffusion degree difference ΔSx |ΔSx| is greater than the magnitude of the lateral diffusion degree coarse adjustment scale setting value LSCx |LSCx| (step S211; yes), and the sign of the lateral diffusion degree difference ΔSx is "- (negative value)" ( Figure 22 Step S221; No), the above-mentioned lateral diffusion degree coarse adjustment process (steps S220, Figure 22) continues from step S205 to step S210 until the magnitude of the lateral diffusion difference ΔSx, |ΔSx|, becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx, |LSCx| (step S211 returns No). Thus, coarse adjustment is performed by the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval) in the direction in which the lateral diffusion display value Sx decreases.

[0202] When the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx| (step S211; No), the execution Figure 23 The lateral diffusion fine-tuning process is shown. Figure 23 This is a flowchart showing an example of the lateral spread fine adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0203] The control device 200 reads the sign of the lateral diffusivity difference ΔSx and determines the adjustment direction of the lateral diffusivity display value Sx relative to the lateral diffusivity target value Sx'. Specifically, the control device 200 determines whether the sign of the lateral diffusivity difference ΔSx is "+ (positive)" (step S241).

[0204] If the sign of the lateral diffusion difference ΔSx is "+ (positive value)" (step S241; yes), it means that the adjustment direction of the lateral diffusion display value Sx relative to the lateral diffusion target value Sx' is the direction of increasing the lateral diffusion of the lighting device 1. At this time, the control device 200 adds the lateral diffusion fine-tuning scale setting value SSCx (second adjustment interval) to the lateral diffusion display value Sx (step S242) to update the lateral diffusion display value Sx. In addition, the control device 200 calculates the X-direction position display value x0 of the light distribution shape object OBJ corresponding to the lateral diffusion display value Sx (step S243) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0205] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S244 ).

[0206] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S244; No), the process of step S244 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S244; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S244; Yes), the display control circuit 231 of the control device 200 causes the lateral spread display value Sx and the X-direction position display value x0 of the light distribution shape object OBJ, acquired and stored in the first storage area of the storage circuit 223 during the above process, to be reflected in the display control on the lighting control application screen 400 (step S245). Furthermore, the transceiver circuit 225 of the control device 200 reads the lateral spread degree display value Sx stored in the first storage area, and transmits the read lateral spread degree display value Sx as the first setting information (S1x=Sx) to the lighting device 1 (step S246).

[0207] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0208] return Figure 21 , the control device 200 determines whether the long press state continues (step S210). If the long press state does not continue (step S210; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the first adjustment area TA1, the control device 200 returns to the first adjustment area TA1. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current lateral diffuseness display value Sx is determined to reflect the lateral diffuseness control state of the lighting device 1 .

[0209] If the long press state continues (step S210; yes), the process returns to step S205. Here, if the long press state continues (step S210; yes), the magnitude of the lateral diffusion degree difference ΔSx |ΔSx| is smaller than the magnitude of the lateral diffusion degree coarse adjustment scale setting value LSCx |LSCx| (step S211; no), and the sign of the lateral diffusion degree difference ΔSx is "+ (positive value)" ( Figure 23 Step S241; Yes), the above-mentioned lateral diffusion degree fine adjustment process (steps S240, Figure 23) The processing from step S205 to step S210 is performed. Thus, fine adjustment is performed in the direction in which the lateral spread degree display value Sx is expanded by the lateral spread degree fine adjustment scale setting value SSCx (second adjustment interval).

[0210] Then, when the size of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the size of the lateral diffusion fine-tuning scale setting value SSCx |SSCx| (step S209; yes), and the long press state is released (step S210; no), the X-direction touch position detection value x'0 in the first adjustment area TA1 is substantially consistent with the X-direction position display value x0 of the light distribution shape object OBJ (x'0 ≈ x0), and determination is made in a state in which the current lateral diffusion display value Sx is reflected in the control state of the lateral diffusion of the lighting device 1.

[0211] return Figure 23 , when the sign of the lateral diffusion difference ΔSx is "-(negative value)" (step S241; No), it means that the adjustment direction of the lateral diffusion display value Sx relative to the lateral diffusion target value Sx' is the direction of reducing the lateral diffusion of the lighting device 1. At this time, the control device 200 subtracts the lateral diffusion fine-tuning scale setting value SSCx (second adjustment interval) from the lateral diffusion display value Sx (step S247) to update the lateral diffusion display value Sx. In addition, the control device 200 calculates the X-direction position display value x0 of the light distribution shape object OBJ corresponding to the lateral diffusion display value Sx (step S248) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0212] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S249 ).

[0213] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S249; No), the process of step S249 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S249; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S249; Yes), the display control circuit 231 of the control device 200 causes the lateral spread display value Sx and the X-direction position display value x0 of the light distribution shape object OBJ, acquired and stored in the first storage area of the storage circuit 223 during the above process, to be reflected in the display control on the lighting control application screen 400 (step S250). Furthermore, the transceiver circuit 225 of the control device 200 reads the lateral spread degree display value Sx stored in the first storage area, and transmits the read lateral spread degree display value Sx as the first setting information ( S1x=Sx) to the lighting device 1 (step S251 ).

[0214] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0215] return Figure 21 , the control device 200 determines whether the long press state continues (step S210). If the long press state does not continue (step S210; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the first adjustment area TA1, the control device 200 returns to the first adjustment area TA1. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current lateral diffuseness display value Sx is determined to reflect the lateral diffuseness control state of the lighting device 1 .

[0216] If the long press state continues (step S210; yes), the process returns to step S205. Here, if the long press state continues (step S210; yes), the magnitude of the lateral diffusion degree difference ΔSx |ΔSx| is smaller than the magnitude of the lateral diffusion degree coarse adjustment scale setting value LSCx |LSCx| (step S211; no), and the sign of the lateral diffusion degree difference ΔSx is "- (negative value)" ( Figure 23 Step S241; No), the above-mentioned lateral diffusion degree fine adjustment process (steps S240, Figure 23) The processing from step S205 to step S210 is performed. Thus, fine adjustment is performed in the direction in which the lateral spread degree display value Sx is reduced by the lateral spread degree fine adjustment scale setting value SSCx (second adjustment interval).

[0217] Thereafter, when the magnitude |ΔSx| of the lateral diffusion difference ΔSx becomes smaller than the magnitude |SSCx| of the lateral diffusion fine-tuning scale setting value SSCx (step S209; yes), and the long press state is released (step S210; no), the X-direction touch position detection value x'0 within the first adjustment area TA1 is consistent or substantially consistent with the X-direction position display value x0 of the light distribution shape object OBJ (x'0≈x0), and determination is made in a state in which the current lateral diffusion display value Sx is reflected in the control state of the lateral diffusion of the lighting device 1.

[0218] Through the lateral diffusion adjustment process of the first embodiment, the lateral diffusion coarse adjustment process (first adjustment interval) is performed according to the X-direction touch detection position in which the user maintains a long press state in the first adjustment area TA1 of the lighting control application screen 400. Figure 22 ) or the lateral diffusion fine-tuning process ( Figure 23 Specifically, when the difference between the lateral diffusivity target value Sx' and the lateral diffusivity display value Sx (lateral diffusivity difference ΔSx) is greater than the lateral diffusivity coarse adjustment scale (first adjustment interval) ( Figure 21 Step S211; Yes), perform lateral diffusion coarse adjustment processing ( Figure 22 ). In addition, when the difference between the lateral diffusivity target value Sx' and the lateral diffusivity display value Sx (lateral diffusivity difference ΔSx) is smaller than the lateral diffusivity coarse adjustment scale (first adjustment interval) ( Figure 21 Step S211; No), perform lateral diffusion fine-tuning processing ( Figure 23 ). In addition, for example, when the lateral diffusion is coarsely adjusted ( Figure 22 ) makes the difference between the lateral diffusivity target value Sx' and the lateral diffusivity display value Sx (lateral diffusivity difference ΔSx) smaller than the lateral diffusivity coarse adjustment scale (first adjustment interval) ( Figure 21 Step S211; No), seamlessly move to the lateral diffusion fine-tuning process ( Figure 23 ).

[0219] Furthermore, the user performs a sliding operation (sliding a finger while touching the screen) in the first adjustment area TA1 of the lighting control application screen 400 while maintaining a long press state, thereby performing a coarse adjustment process of the lateral diffusion degree ( Figure 22 ) and lateral diffusion fine-tuning ( Figure 23) seamlessly transition between them. For example, when performing lateral diffusion fine-tuning ( Figure 23 ) After that, when the difference between the lateral diffusion target value Sx' and the lateral diffusion display value Sx (lateral diffusion difference ΔSx) becomes greater than the lateral diffusion coarse adjustment scale (first adjustment interval) by sliding operation ( Figure 21 Step S211; Yes), seamlessly move to the lateral diffusion coarse adjustment process ( Figure 22 ). In addition, for example, when performing the lateral diffusion coarse adjustment process ( Figure 22 ) After the slide operation is performed, the difference between the lateral diffusivity target value Sx' and the lateral diffusivity display value Sx (lateral diffusivity difference ΔSx) becomes smaller than the lateral diffusivity coarse adjustment scale (first adjustment interval) ( Figure 21 Step S211; No), seamlessly move to the lateral diffusion fine-tuning process ( Figure 23 ).

[0220] More specifically, when the magnitude of the lateral spread difference ΔSx |ΔSx| becomes greater than the magnitude of the lateral spread coarse adjustment scale setting value LSCx |LSCx| (|ΔSx|≥|LSCx|, Figure 21 Step S211; Yes), the lateral diffusion display value Sx corresponding to the X-direction position display value x0 of the light distribution shape object OBJ is coarsely adjusted in a direction close to the lateral diffusion target value Sx' corresponding to the X-direction touch position detection value x'0. When the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx| (|ΔSx|<|LSCx|), Figure 21 Step S211; No), the lateral diffusion degree display value Sx corresponding to the X-direction position display value x0 of the light distribution shape object OBJ is fine-tuned in a direction close to the lateral diffusion degree target value Sx' corresponding to the X-direction touch position detection value x'0.

[0221] return Figure 20 When a touch is detected in the second adjustment area TA2 (step S103; yes), move to Figure 24 The longitudinal diffusion adjustment process (step S300) is shown. Figure 24 This is a flowchart showing an example of the longitudinal spread adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0222] When moved to Figure 24 During the vertical spread adjustment process shown, the control device 200 resets the count value T1 of the first timer that counts the duration of the touch in the second adjustment area TA2 ( T1 =0, step S301 ).

[0223] Next, the control device 200 determines whether the count value T1 of the first timer has exceeded a predetermined long press detection time (first time threshold) T1th (e.g., 2 seconds) (step S302). For example, if 10 milliseconds is set as one count, the long press detection time (first time threshold) T1th is set to 200 counts (T1th = 200). Note that the long press detection time (first time threshold) T1th is not limited to 2 seconds (= 200).

[0224] If the count value T1 of the first timer is less than the predetermined long press detection time T1th (T1<T1th, step S302; No), the control device 200 then determines whether the touch state in the second adjustment area TA2 continues (step S303). If the touch state in the second adjustment area TA2 does not continue (step S303; No), that is, the user's finger leaves the screen or the touch detection position deviates from the second adjustment area TA2, the control device 200 returns to the state of touch detection. Figure 20 The lighting control process shown does not adjust the control state of the longitudinal spread of the lighting device 1, and moves to a standby state (step S101).

[0225] If the touch state in the second adjustment area TA2 continues (step S303 ; Yes), the processes of steps S302 to S303 are repeatedly executed until the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S302 ; Yes).

[0226] If the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S302; yes), the control device 200 determines that it is in a long press state (step S304), resets the count value T2 of the second timer that counts the predetermined set value change time (second time threshold) T2th (T2=0, step S305), detects the touch position in the Y direction within the second adjustment area TA2, and stores it as the Y direction touch position detection value y'0 in Figure 17 The first storage area of the storage circuit 223 shown in FIG. 2 is used to calculate the vertical diffusion target value Sy' corresponding to the Y-direction touch position detection value y'0 (step S307), and the target value is stored in the first storage area of the storage circuit 223 (step S306). Figure 17 The first storage area shown in FIG. 1 . The Y-direction touch position detection value y′0 in the second adjustment area TA2 is a position different from the Y-direction position display value y0 of the light distribution shape object OBJ.

[0227] Then, the control device 200 reads out the longitudinal diffusion display value Sy and the longitudinal diffusion target value Sy' from the first storage area, calculates the longitudinal diffusion difference ΔSy (ΔSy = Sy'-Sy, step S308), and determines whether the size of the longitudinal diffusion difference ΔSy |ΔSy| is smaller than the size of the longitudinal diffusion fine-tuning scale setting value SSCy (second adjustment interval) |SSCy| (step S309).

[0228] When the size |ΔSy| of the longitudinal diffusion difference ΔSy is greater than the size |SSCy| of the longitudinal diffusion fine-tuning scale setting value SSCy (step S309; no), the control device 200 then determines whether the size |ΔSy| of the longitudinal diffusion difference ΔSy is greater than the size |LSCy| of the longitudinal diffusion coarse-tuning scale setting value LSCy (step S311).

[0229] When the magnitude of the longitudinal diffusivity difference ΔSy |ΔSy| is greater than the magnitude of the longitudinal diffusivity coarse adjustment scale setting value LSCy |LSCy| (step S311; yes), the execution Figure 25 The longitudinal diffusion is coarsely adjusted as shown. Figure 25 This is a flowchart showing an example of the longitudinal spread coarse adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0230] The control device 200 reads the sign of the longitudinal diffusivity difference ΔSy and determines the adjustment direction of the longitudinal diffusivity display value Sy relative to the longitudinal diffusivity target value Sy'. Specifically, the control device 200 determines whether the sign of the longitudinal diffusivity difference ΔSy is "+ (positive)" (step S321).

[0231] When the sign of the longitudinal diffusion difference ΔSy is "+ (positive value)" (step S321; yes), it means that the adjustment direction of the longitudinal diffusion display value Sy relative to the longitudinal diffusion target value Sy' is the direction of increasing the longitudinal diffusion of the lighting device 1. At this time, the control device 200 adds the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval) to the longitudinal diffusion display value Sy (step S322) to update the longitudinal diffusion display value Sy. In addition, the control device 200 calculates the Y-direction position display value y0 of the light distribution shape object OBJ corresponding to the longitudinal diffusion display value Sy (step S323) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0232] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) (step S324). For example, when 10 [ms] is set as one count, the set value change time (second time threshold) T2th is set to 50 counts (T2th = 50). Note that the set value change time (second time threshold) T2th is not limited to 0.5 [sec] (= 50).

[0233] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S324; No), the process of step S324 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S324; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S324; Yes), the display control circuit 231 of the control device 200 causes the display control of the lighting control application screen 400 to reflect the longitudinal spread display value Sy and the Y-direction position display value y0 of the light distribution shape object OBJ obtained in the above process and stored in the first storage area of the storage circuit 223 (step S325). Furthermore, the transceiver circuit 225 of the control device 200 reads the longitudinal diffusivity display value Sy stored in the first storage area, and transmits the read longitudinal diffusivity display value Sy as the first setting information ( S1y=Sy) to the lighting device 1 (step S326 ).

[0234] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0235] return Figure 24 , the control device 200 determines whether the long press state continues (step S310). If the long press state does not continue (step S310; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the second adjustment area TA2, the control device 200 returns to the state of the touch screen. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current vertical diffusivity display value Sy is determined to reflect the vertical diffusivity control state of the lighting device 1 .

[0236] If the long press state continues (step S310; yes), the process returns to step S305. Here, if the long press state continues (step S310; yes), the magnitude of the longitudinal diffusivity difference ΔSy |ΔSy| is greater than the magnitude of the longitudinal diffusivity coarse adjustment scale setting value LSCy |LSCy| (step S311; yes), and the sign of the longitudinal diffusivity difference ΔSy is "+ (positive value)" (step S321; yes), the longitudinal diffusivity coarse adjustment process (steps S320, S321) including the above-mentioned longitudinal diffusivity coarse adjustment process is repeatedly executed every predetermined setting value change time (second time threshold) T2th. Figure 25 ) continues through steps S305 to S310 until the magnitude of the longitudinal diffusivity difference ΔSy, |ΔSy|, becomes smaller than the magnitude of the longitudinal diffusivity coarse adjustment scale setting value LSCy, |LSCy| (step S311 returns No). Thus, coarse adjustment is performed in the direction in which the longitudinal diffusivity display value Sy increases by the longitudinal diffusivity coarse adjustment scale setting value LSCy (the first adjustment interval).

[0237] return Figure 25 , when the sign of the longitudinal diffusion difference ΔSy is "-(negative value)" (step S321; No), it means that the adjustment direction of the longitudinal diffusion display value Sy relative to the longitudinal diffusion target value Sy' is the direction of reducing the longitudinal diffusion of the lighting device 1. At this time, the control device 200 subtracts the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval) from the longitudinal diffusion display value Sy (step S327) to update the longitudinal diffusion display value Sy. In addition, the control device 200 calculates the Y-direction position display value y0 of the light distribution shape object OBJ corresponding to the longitudinal diffusion display value Sy (step S328) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0238] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S329 ).

[0239] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S329; No), the process of step S329 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S329; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S329; Yes), the display control circuit 231 of the control device 200 causes the display control of the lighting control application screen 400 to reflect the longitudinal spread display value Sy and the Y-direction position display value y0 of the light distribution shape object OBJ obtained in the above process and stored in the first storage area of the storage circuit 223 (step S330). Furthermore, the transceiver circuit 225 of the control device 200 reads the longitudinal diffusion display value Sy stored in the first storage area, uses the read longitudinal diffusion display value Sy as first setting information (S1y=Sy), and sends the first setting information to the lighting device 1 (step S331).

[0240] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0241] return Figure 24 , the control device 200 determines whether the long press state continues (step S310). If the long press state does not continue (step S310; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the second adjustment area TA2, the control device 200 returns to the state of the touch screen. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current vertical diffusivity display value Sy is determined to reflect the vertical diffusivity control state of the lighting device 1 .

[0242] If the long press state continues (step S310; yes), the process returns to step S305. Here, if the long press state continues (step S310; yes), the magnitude of the longitudinal diffusion degree difference ΔSy |ΔSy| is greater than the magnitude of the longitudinal diffusion degree coarse adjustment scale setting value LSCy |LSCy| (step S311; yes), and the sign of the longitudinal diffusion degree difference ΔSy is "- (negative value)" ( Figure 25 Step S321; No), the above-mentioned longitudinal diffusion degree coarse adjustment process (steps S320, Figure 25) continues from step S305 to step S310 until the magnitude of the longitudinal diffusivity difference ΔSy, |ΔSy|, becomes smaller than the magnitude of the longitudinal diffusivity coarse adjustment scale setting value LSCy, |LSCy| (step S311 returns No). Thus, coarse adjustment is performed in the direction of reducing the longitudinal diffusivity display value Sy by the longitudinal diffusivity coarse adjustment scale setting value LSCy (the first adjustment interval).

[0243] When the magnitude of the longitudinal diffusivity difference ΔSy |ΔSy| becomes smaller than the magnitude of the longitudinal diffusivity coarse adjustment scale setting value LSCy |LSCy| (step S311; No), the execution Figure 26 The longitudinal diffusion fine-tuning process is shown. Figure 26 This is a flowchart showing an example of the vertical spread fine adjustment process in the control device 200 of the lighting device 1 according to the first embodiment.

[0244] The control device 200 reads the sign of the longitudinal diffusivity difference ΔSy and determines the adjustment direction of the longitudinal diffusivity display value Sy relative to the longitudinal diffusivity target value Sy'. Specifically, the control device 200 determines whether the sign of the longitudinal diffusivity difference ΔSy is "+ (positive)" (step S341).

[0245] When the sign of the longitudinal diffusion difference ΔSy is "+ (positive value)" (step S341; yes), it means that the adjustment direction of the longitudinal diffusion display value Sy relative to the longitudinal diffusion target value Sy' is the direction of increasing the longitudinal diffusion of the lighting device 1. At this time, the control device 200 adds the longitudinal diffusion fine-tuning scale setting value SSCy (second adjustment interval) to the longitudinal diffusion display value Sy (step S342) to update the longitudinal diffusion display value Sy. In addition, the control device 200 calculates the Y-direction position display value y0 of the light distribution shape object OBJ corresponding to the longitudinal diffusion display value Sy (step S343) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0246] Next, the control device 200 determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S344 ).

[0247] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S344; No), the process of step S344 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S344; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S344; Yes), the display control circuit 231 of the control device 200 causes the display control of the lighting control application screen 400 to reflect the longitudinal spread display value Sy and the Y-direction position display value y0 of the light distribution shape object OBJ obtained in the above process and stored in the first storage area of the storage circuit 223 (step S345). Furthermore, the transceiver circuit 225 of the control device 200 reads the longitudinal diffusion display value Sy stored in the first storage area, uses the read longitudinal diffusion display value Sy as first setting information (S1y=Sy), and sends the first setting information to the lighting device 1 (step S346).

[0248] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0249] return Figure 24 , the control device 200 determines whether the long press state continues (step S310). If the long press state does not continue (step S310; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the second adjustment area TA2, the control device 200 returns to the state of the touch screen. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current vertical diffusivity display value Sy is determined to reflect the vertical diffusivity control state of the lighting device 1 .

[0250] If the long press state continues (step S310; yes), the process returns to step S305. Here, if the long press state continues (step S310; yes), the magnitude of the longitudinal diffusion degree difference ΔSy |ΔSy| is smaller than the magnitude of the longitudinal diffusion degree coarse adjustment scale setting value LSCy |LSCy| (step S311; no), and the sign of the longitudinal diffusion degree difference ΔSy is "+ (positive value)" ( Figure 26 Step S341; Yes), the vertical diffusion degree fine adjustment process (steps S340, Figure 26) The processing from step S305 to step S310 is performed. Thus, fine adjustment is performed in the direction in which the vertical diffusion degree display value Sy is expanded by the vertical diffusion degree fine adjustment scale setting value SSCy (second adjustment interval).

[0251] Afterwards, when the size of the longitudinal diffusion difference ΔSy |ΔSy| becomes smaller than the size of the longitudinal diffusion fine-tuning scale setting value SSCy |SSCy| (step S309; yes), and the long press state is released (step S310; no), the Y-direction touch position detection value y'0 in the second adjustment area TA2 is roughly consistent with the Y-direction position display value y0 of the light distribution shape object OBJ (y'0≈y0), and the current longitudinal diffusion display value Sy is reflected as the control state of the longitudinal diffusion of the lighting device 1.

[0252] return Figure 26 , when the sign of the longitudinal diffusion difference ΔSy is "-(negative value)" (step S341; No), it means that the adjustment direction of the longitudinal diffusion display value Sy relative to the longitudinal diffusion target value Sy' is the direction of reducing the longitudinal diffusion of the lighting device 1. At this time, the control device 200 subtracts the longitudinal diffusion fine-tuning scale setting value SSCy (second adjustment interval) from the longitudinal diffusion display value Sy (step S347) to update the longitudinal diffusion display value Sy. In addition, the control device 200 calculates the Y-direction position display value y0 of the light distribution shape object OBJ corresponding to the longitudinal diffusion display value Sy (step S348) and stores it in Figure 17 The first storage area of the storage circuit 223 is shown.

[0253] Next, the control device 200 determines whether the count value T2 of the second timer has passed a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S349 ).

[0254] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S349; No), the process of step S349 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S349; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S349; Yes), the display control circuit 231 of the control device 200 causes the display control of the lighting control application screen 400 to reflect the longitudinal spread display value Sy and the Y-direction position display value y0 of the light distribution shape object OBJ obtained in the above process and stored in the first storage area of the storage circuit 223 (step S350). In addition, the transceiver circuit 225 of the control device 200 reads the longitudinal diffusion display value Sy stored in the first storage area, uses the read longitudinal diffusion display value Sy as the first setting information (S1y=Sy), and sends the first setting information to the lighting device 1 (step S351).

[0255] The transceiver circuit 111 of the lighting device 1 stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0256] return Figure 24 , the control device 200 determines whether the long press state continues (step S310). If the long press state does not continue (step S310; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the second adjustment area TA2, the control device 200 returns to the state of the touch screen. Figure 20 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 ), whereby the current vertical diffusivity display value Sy is determined to reflect the vertical diffusivity control state of the lighting device 1 .

[0257] If the long press state continues (step S310; yes), the process returns to step S305. Here, if the long press state continues (step S310; yes), the magnitude of the longitudinal diffusion degree difference ΔSy |ΔSy| is smaller than the magnitude of the longitudinal diffusion degree coarse adjustment scale setting value LSCy |LSCy| (step S311; no), and the sign of the longitudinal diffusion degree difference ΔSy is "- (negative value)" ( Figure 26 Step S341; No), the vertical diffusion degree fine adjustment process (steps S340, Figure 26) The processing from step S305 to step S310 is performed. Thus, fine adjustment is performed in the direction in which the vertical diffusion degree display value Sy is reduced by the vertical diffusion degree fine adjustment scale setting value SSCy (second adjustment interval).

[0258] Then, when the size of the longitudinal diffusion difference ΔSy |ΔSy| becomes smaller than the size of the longitudinal diffusion fine-tuning scale setting value SSCy |SSCy| (step S309; yes), the long press state is released (step S310; no), in the state where the Y-direction touch position detection value y'0 in the second adjustment area TA2 is consistent or approximately consistent with the Y-direction position display value y0 of the light distribution shape object OBJ (y'0≈y0), it is determined that the current longitudinal diffusion display value Sy is reflected as the control state of the longitudinal diffusion of the lighting device 1.

[0259] Through the longitudinal diffusion adjustment process of the first embodiment, the longitudinal diffusion coarse adjustment process (the first adjustment interval) is performed according to the Y-direction touch detection position in which the user maintains a long press state in the second adjustment area TA2 of the lighting control application screen 400. Figure 25 ) or the longitudinal diffusion fine-tuning process ( Figure 26 Specifically, when the difference between the longitudinal diffusivity target value Sy' and the longitudinal diffusivity display value Sy (longitudinal diffusivity difference ΔSy) is greater than the longitudinal diffusivity coarse adjustment scale (first adjustment interval) ( Figure 24 Step S311; Yes), execute the longitudinal diffusion coarse adjustment process ( Figure 25 ). In addition, when the difference between the longitudinal diffusivity target value Sy' and the longitudinal diffusivity display value Sy (longitudinal diffusivity difference ΔSy) is smaller than the longitudinal diffusivity coarse adjustment scale (first adjustment interval) ( Figure 24 Step S311; No), perform vertical diffusion fine-tuning processing ( Figure 26 ). In addition, for example, when the longitudinal diffusion is roughly adjusted ( Figure 25 ) makes the difference between the longitudinal diffusivity target value Sy' and the longitudinal diffusivity display value Sy (longitudinal diffusivity difference ΔSy) smaller than the longitudinal diffusivity coarse adjustment scale (first adjustment interval) ( Figure 24 Step S311; No), seamlessly move to the vertical diffusion fine-tuning process ( Figure 26 ).

[0260] Furthermore, the user performs a sliding operation while maintaining a long press state in the second adjustment area TA2 of the lighting control application screen 400, thereby performing a coarse adjustment process of the vertical diffusion degree ( Figure 25 ) and longitudinal diffusion fine-tuning ( Figure 26 ) seamlessly transfer to each other. For example, when performing vertical diffusion fine-tuning processing ( Figure 26 ) After that, when the difference between the longitudinal diffusivity target value Sy' and the longitudinal diffusivity display value Sy (longitudinal diffusivity difference ΔSy) becomes greater than the longitudinal diffusivity coarse adjustment scale (first adjustment interval) by sliding operation ( Figure 24 Step S311; Yes), seamlessly move to the longitudinal diffusion coarse adjustment process ( Figure 25 ). In addition, for example, if the longitudinal diffusion coarse adjustment process ( Figure 25 ) and then slide the difference between the longitudinal diffusivity target value Sy' and the longitudinal diffusivity display value Sy (longitudinal diffusivity difference ΔSy) to become smaller than the longitudinal diffusivity coarse adjustment scale (first adjustment interval) ( Figure 24 Step S311; No), then seamlessly move to the vertical diffusion fine-tuning process ( Figure 26 ).

[0261] More specifically, when the magnitude |ΔSy| of the longitudinal diffusivity difference ΔSy becomes greater than the magnitude |LSCy| of the longitudinal diffusivity coarse adjustment scale setting value LSCy (|ΔSy|≥|LSCy|, Figure 24 In step S311; yes), a coarse adjustment is performed in a direction in which the longitudinal diffusion display value Sy corresponding to the Y-direction position display value y0 of the light distribution shape object OBJ is close to the longitudinal diffusion target value Sy' corresponding to the Y-direction touch position detection value y'0, and when the magnitude |ΔSy| of the longitudinal diffusion difference ΔSy becomes smaller than the magnitude |LSCy| of the longitudinal diffusion coarse adjustment scale setting value LSCy (|ΔSy|<|LSCy|, Figure 24 Step S311; No), fine adjustment is performed in the direction in which the longitudinal diffusion degree display value Sy corresponding to the Y direction position display value y0 of the light distribution shape object OBJ approaches the longitudinal diffusion degree target value Sy' corresponding to the Y direction touch position detection value y'0.

[0262] Here, a specific example of the operation on the lighting control application screen 400 of the control device 200 according to the first embodiment will be described. Figure 27A 、 Figure 27B 、 Figure 27C 、 Figure 27D 、 Figure 27E 、 Figure 27F 、 Figure 27G 、 Figure 27H This is a diagram showing a specific example of operations on the lighting control application screen 400 of the control device 200 according to Embodiment 1. Here, the operation of the lateral spread adjustment process will be described with examples.

[0263] Figure 27A Indicates Figure 20 In the standby state (step S101), the horizontal diffusion degree display value Sx and the vertical diffusion degree display value Sy are both 70 [%]. Figure 27BIn, it means Figure 27A In the standby state shown, a touch in the first adjustment area TA1 is detected ( Figure 20 Step S102; Yes), move to Figure 21 In the example of the lateral diffusion adjustment process shown, the user enters the long press state (step S204), and detects the X-direction touch position detection value x'0 corresponding to the lateral diffusion target value Sx' = 20% in the first adjustment area TA1. At this time, the lateral diffusion difference ΔSx becomes -50% (ΔSx = Sx'(=20%) - Sx(=70%) = -50%). The magnitude of the lateral diffusion difference ΔSx |ΔSx(=-50%)| becomes greater than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx(=20%)| (|ΔSx| ≥ |LSCx|). Figure 21 Step S211; Yes), the sign of the lateral diffusion difference ΔSx (=-50[%]) becomes "-(negative value)" ( Figure 22 Step S221; No). Thus, in the direction of reducing the lateral diffusion of the lighting device 1 ( Figure 27B The coarse adjustment is performed in the direction of the arrow shown in FIG. 1 until the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx (=20[%])| ( Figure 21 Step S211; No).

[0264] Specifically, first, Figure 21 In the first round of the lateral spread adjustment process from step S205 to step S210, when the count value T2 of the second timer exceeds the predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) ( Figure 22 Step S229; Yes), if Figure 27C As shown in FIG. 1 , the X-direction position display value x0 of the light distribution shape object OBJ becomes the position corresponding to the lateral diffusion display value Sx=50[%]. In the subsequent second round of processing, as shown in FIG. Figure 27D As shown, the X-direction position display value x0 of the light distribution shape object OBJ is a position corresponding to the lateral spread display value Sx=30[%].

[0265] Then, in the third round of processing, when the lateral diffusion difference ΔSx becomes -10[%] (ΔSx=Sx'(=20[%])-Sx(=30[%])=-10[%]), the size of the lateral diffusion difference ΔSx |ΔSx(=-10[%])| becomes smaller than the size of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx(=20[%])| (|ΔSx|<|LSCx|, Figure 21Step S211; No), if Figure 27E As shown, in the direction of reducing the lateral diffusion of the lighting device 1 ( Figure 27B Fine adjustment is performed in the direction of the arrow shown in the figure) until the size of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the size of the lateral diffusion fine adjustment scale setting value SSCx |SSCx (=1[%])| ( Figure 21 Thus, the X-direction touch position detection value x'0 corresponding to the lateral spread target value Sx' and the X-direction position display value x0 of the light distribution shape object OBJ are substantially the same (x'0≈x0).

[0266] exist Figure 27F In the middle, it means that after the long press state is maintained ( Figure 21 In step S210; yes), the user performs a sliding operation in the first adjustment area TA1. More specifically, Figure 27F , it is shown that the X-direction touch position detection value x'0 in the first adjustment area TA1 is updated by the sliding operation, and the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes greater than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx (=20[%])| (|ΔSx|≥|LSCx|, Figure 21 In step S211 (yes), an example is given in which an X-direction touch position detection value x'0 corresponding to the lateral diffusion target value Sx'=50[%] is detected in the first adjustment area TA1 (the user's sliding action stops at this X-direction touch position detection value x'0). At this time, the lateral diffusion difference ΔSx becomes 30[%] (ΔSx=Sx'(=50[%])-Sx(=20[%])=30[%]), and the magnitude of the lateral diffusion difference ΔSx |ΔSx(=30[%])| becomes greater than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx(=20[%])| (|ΔSx|≥|LSCx|, Figure 21 Step S211; Yes), the sign of the lateral diffusion difference ΔSx (=30[%]) becomes "+ (positive value)" ( Figure 22 Step S221; Yes). Thus, in the direction of increasing the lateral diffusion of the lighting device 1 ( Figure 27F The coarse adjustment is performed in the direction of the arrow shown in FIG. 1 until the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the magnitude of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx (=20[%])| ( Figure 21 Step S211; No).

[0267] Specifically, first, Figure 21In the first round of the lateral spread adjustment process from step S205 to step S210, when the count value T2 of the second timer exceeds the predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) ( Figure 21 Step S244; Yes), if Figure 27G As shown, the X-direction position display value x0 of the light distribution shape object OBJ is a position corresponding to the lateral spread display value Sx=40[%].

[0268] Then, in the second round of processing, when the lateral diffusion difference ΔSx becomes 10[%] (ΔSx=Sx'(=50[%])-Sx(=40[%])=10[%]), and the size of the lateral diffusion difference ΔSx |ΔSx(=10[%])| becomes smaller than the size of the lateral diffusion coarse adjustment scale setting value LSCx |LSCx(=20[%])| (|ΔSx|<|LSCx|), in the direction of expanding the lateral diffusion of the lighting device 1 ( Figure 27F Make fine adjustments in the direction of the arrow shown. Figure 27H , an example is shown in which the user releases his finger from the screen at the moment when the X-direction position display value x0 of the light distribution shape object OBJ reaches a position corresponding to the lateral spread degree display value Sx=42[%] before the X-direction position display value x0 of the light distribution shape object OBJ becomes substantially the same as the X-direction touch position detection value x'0 corresponding to the lateral spread degree target value Sx'. ( Figure 21 Step S210 ; No). Thus, determination is made in a state where the current lateral diffuseness display value Sx=42[%] is reflected as the control state of the lateral diffuseness of the lighting device 1 .

[0269] Furthermore, until the magnitude of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the magnitude of the lateral diffusion fine adjustment scale setting value SSCx |SSCx (=1[%])| ( Figure 21 Step S209; Yes), when the position corresponding to the lateral diffusion target value Sx'=50[%] (X-direction touch position detection value x'0) is kept pressed, the lateral diffusion of the lighting device 1 is expanded ( Figure 27F Fine adjustment is performed in the direction of the arrow shown in the figure) until the size of the lateral diffusion difference ΔSx |ΔSx| becomes smaller than the size of the lateral diffusion fine adjustment scale setting value SSCx |SSCx (=1[%])| ( Figure 21 Step S209; Yes). As a result, the X-direction touch position detection value x'0 corresponding to the lateral diffusion target value Sx' (=50[%]) and the X-direction position display value x0 of the light distribution shape object OBJ become the same or approximately the same (x'0≈x0). In this state, the user releases his finger from the screen ( Figure 21Step S210; No), thereby determining in a state where the current lateral diffuseness display value Sx=50[%] is reflected as the control state of the lateral diffuseness of the lighting device 1.

[0270] In the control device 200 of the lighting device 1 of the above-mentioned embodiment 1, when the difference between the lateral diffusion target value Sx' defined by the X-direction touch position detection value x'0 within the first adjustment area TA1 and the lateral diffusion display value Sx, that is, the lateral diffusion difference ΔSx, is greater than the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval), the lateral diffusion display value Sx is adjusted using the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval). When the lateral diffusion difference ΔSx is less than the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval), the lateral diffusion display value Sx is adjusted using the lateral diffusion fine adjustment scale setting value SSCx (second adjustment interval) which is narrower than the lateral diffusion coarse adjustment scale setting value LSCx (first adjustment interval).

[0271] In addition, when the duration T1 of the touch within the first adjustment area TA1 exceeds the predetermined long press detection time (first time threshold) T1th, detection of the X-direction touch position detection value x'0 that defines the lateral diffusion target value Sx' is started. When the touch within the first adjustment area TA1 continues, the lateral diffusion display value Sx is adjusted every predetermined set value change time (second time threshold) T2th.

[0272] Thus, for example, when adjusting the lateral diffuseness fine adjustment scale (second adjustment interval) every set value change time (second time threshold) T2th, when the user releases their finger from the screen at the moment the desired lateral diffuseness display value Sx is obtained, the current lateral diffuseness display value Sx is reflected as the control state of the lateral diffuseness of the lighting device 1. Therefore, it is easy to obtain the desired lateral diffuseness display value Sx, and fine adjustment of the lateral diffuseness display value Sx is facilitated.

[0273] In addition, in the control device 200 of the lighting device 1 of the above-mentioned embodiment 1, when the difference between the longitudinal diffusion target value Sy' defined by the Y-direction touch position detection value y'0 in the second adjustment area TA2 and the longitudinal diffusion display value Sy, that is, the longitudinal diffusion difference ΔSy is greater than the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval), the longitudinal diffusion display value Sy is adjusted with the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval); when the longitudinal diffusion difference ΔSy is less than the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval), the longitudinal diffusion display value Sy is adjusted with the longitudinal diffusion fine adjustment scale setting value SSCy (second adjustment interval) which is narrower than the longitudinal diffusion coarse adjustment scale setting value LSCy (first adjustment interval).

[0274] In addition, when the duration T1 of the touch within the second adjustment area TA2 exceeds the predetermined long press detection time (first time threshold) T1th, the detection of the Y-direction touch position detection value y'0 that defines the longitudinal diffusion target value Sy' is started, and when the touch within the second adjustment area TA2 continues, the longitudinal diffusion display value Sy is adjusted every predetermined set value change time (second time threshold) T2th.

[0275] Thus, for example, when adjusting the vertical diffusivity fine adjustment scale (second adjustment interval) every set value change time (second time threshold) T2th, when the user releases their finger from the screen at the moment the desired vertical diffusivity display value Sy is obtained, the current vertical diffusivity display value Sy is reflected as the control state of the lateral diffusivity of the lighting device 1. Therefore, it is easy to obtain the desired vertical diffusivity display value Sy, and fine adjustment of the vertical diffusivity display value Sy is facilitated.

[0276] (Implementation Method 2)

[0277] Hereinafter, the configuration and operation for controlling the light diffusion degree of the lighting device 1a in the lighting system control device 200a according to Embodiment 2 will be described. Here, the configuration and operation different from those in Embodiment 1 will be described, and overlapping descriptions may be omitted.

[0278] Figure 28 This is a diagram showing an example of a control block configuration of a control device 200a according to the second embodiment.

[0279] The storage area of the storage circuit 223a of Embodiment 2 stores various parameter values and various setting values required for the operation of the lighting control application of Embodiment 2, which will be described later. The various parameter values and various setting values required for the operation of the lighting control application of Embodiment 2 will be described later.

[0280] The transceiver circuit 225a transmits and receives setting information with the lighting device 1a. Specifically, the transceiver circuit 225a transmits light diffusion S1 as first setting information to the lighting device 1a in each process described below. Furthermore, the transceiver circuit 225a receives second light diffusion information (light diffusion S2) transmitted from the lighting device 1a.

[0281] Figure 29 This is a diagram showing an example of a control block configuration of a lighting device 1 a according to the second embodiment.

[0282] The transceiver circuit 111a transmits and receives light diffusion information to and from the control device 200a. Specifically, the transceiver circuit 111a receives the first light diffusion information (light diffusion S1) transmitted from the control device 200a. Furthermore, the transceiver circuit 111a transmits the light diffusion information S2 stored in the storage circuit 113a to the control device 200a as the second light diffusion information.

[0283] In the present invention, when the lighting device 1a is activated, the transceiver circuit 111a transmits the light diffusion degree S2 stored in the storage circuit 113a to the control device 200a as the second light diffusion degree information. The first light diffusion degree information (light diffusion degree S1) transmitted from the control device 200a through various processes of the control device 200a, described later, is then stored in the storage circuit 113a as the new light diffusion degree S2. In other words, by transmitting the first light diffusion degree information from the control device 200a to the lighting device 1a, the second light diffusion degree information is updated to the first light diffusion degree information. Initially, the lighting device 1a does not store the second light diffusion degree information. In this case, the second light diffusion degree information is stored by transmitting the first light diffusion degree information from the control device 200a.

[0284] Hereinafter, specific examples of each process and display format in the lighting control application executed on the control device 200a according to the second embodiment will be described in detail.

[0285] Figure 30 This is a conceptual diagram showing an example of a display format of the lighting control application screen 400A of the control device 200a according to the second embodiment.

[0286] If you start the lighting control application, it will display Figure 30The lighting control application screen 400A (adjustment screen) shown in FIG. performs pairing between the control device 200a and the lighting device 1a, which has been pre-registered as a control target device for the control device 200a. Alternatively, a pairing button (not shown) may be displayed on the lighting control application screen 400A, and the user may touch the pairing button to initiate pairing between the control device 200a and the lighting device 1a. Alternatively, upon initial startup of the lighting control application, for example, the lighting device 1a activated within a pairing-capable space may be registered as a control target device.

[0287] exist Figure 30 In the illustrated lighting control application screen 400A, the X direction is defined to correspond to the Dx direction (first direction) in the light diffusion control of the lighting device 1a, and the Y direction is defined to correspond to the Dy direction (second direction) in the light diffusion control of the lighting device 1a. Furthermore, the lighting control application screen 400A defines an XY plane with an origin O(0,0) at a predetermined position on the display area DA.

[0288] The display panel 20 is provided with a display area DA that overlaps with the detection area FA of the touch sensor 30 in a plan view. Figure 30 In the illustrated example, a substantially circular light distribution shape object OBJ is displayed with the origin O(0, 0) of the XY plane on the lighting control application screen 400A as its center point.

[0289] In the configuration of the second embodiment, the shape of the light distribution shape object OBJ on the lighting control application screen 400A changes concentrically according to the degree of diffusion.

[0290] In embodiment 2, as Figure 30 As shown in FIG, an adjustment area TA is provided as an area where a touch detection position for setting the diffusion degree can be obtained. The adjustment area TA is set to a range in which the circular light distribution shape can be adjusted over the entire range from the minimum value (0[%]) to the maximum value (100[%]). Specifically, in Embodiment 2, Figure 30 The area between the small circle and the large circle formed by the dotted line is used as the adjustment area TA.

[0291] Within the adjustment area TA, touch position detection can be performed between a position on the outline of the light distribution shape object OBJ when the diffusion is 0% (the small dashed circle in the figure) and a position on the outline of the light distribution shape object OBJ when the diffusion is 100% (the large dashed circle in the figure). In the second embodiment, by detecting the touch position within the adjustment area TA, the diffusion in the X and Y directions can be adjusted to the same value simultaneously.

[0292] On the lighting control application screen 400A of the control device 200a according to the second embodiment, the degree of diffusion of the lighting device 1a can be set by a virtual position d0 on the outline of the substantially circular light distribution shape object OBJ.

[0293] In the second embodiment, the position d0 on the display area DA within the adjustment area TA overlaps with the outline of the light distribution shape object OBJ and is a virtual position corresponding to the degree of diffusion in the X and Y directions of the lighting device 1. Figure 30 The "50" displayed near the virtual position d0 on the display area DA in the adjustment area TA represents the diffusion degree (50[%]) of the lighting device 1 in the X direction and the Y direction. As the virtual position d0 on the display area DA in the adjustment area TA moves, the shape of the light distribution shape object OBJ changes in a concentric circle. The virtual position d0 on the display area DA in the adjustment area TA is defined by the distance from the origin O of the XY plane, for example. In addition, the relationship between the virtual position d0 on the display area DA in the adjustment area TA and the diffusion degree S can be in the form of calculation using a mathematical formula, or the corresponding relationship between the virtual position d0 and the diffusion degree S can be stored in the storage circuit 223a. In the following description, the form of mutual calculation of the virtual position d0 and the diffusion degree S using a mathematical formula is exemplified.

[0294] In this embodiment, the diffusion degree S is a value corresponding to the distance from the origin O(0,0) of the XY plane on the lighting control application screen 400A to the virtual position d0 on the display area DA within the adjustment area TA. The user can change the size of the light distribution shape by touching the screen with a finger within the adjustment area TA. However, when the coordinates of the finger are (Xa, Ya), the distance √(Xa) from the origin O(0,0) to the touch detection position is calculated based on the distance √(Xa) from the origin O(0,0) to the touch detection position. 2 +Ya 2 ) to determine the size of the light distribution shape object OBJ. For example, the distance from the origin O(0,0) to the touch detection position is √(Xa 2 +Ya 2 ) corresponds to a case where the diffusion degree is equivalent to 50[%]. If the touch detection position on the detection area FA overlaps with the virtual position d0 on the display area DA through the diffusion adjustment processing of embodiment 2, the light distribution shape becomes a circular shape equivalent to the diffusion degree 50[%].

[0295] In Embodiment 2, the control device 200a shifts to the spread adjustment process upon detecting a continuous touch state in the adjustment area TA on the lighting control application screen 400A. Continuous touch state in the adjustment area TA is hereinafter also referred to as a "long press state."

[0296] In the second embodiment, the “long press state” indicates a state in which the duration T1 of the touch in the adjustment area TA exceeds a predetermined long press detection time (first time threshold) T1th (eg, 2 [sec]).

[0297] Figure 31 This is a conceptual diagram showing an example of a first storage area of the storage circuit 223a in the control device 200a of the lighting device 1a according to the second embodiment. Figure 32 This is a conceptual diagram showing an example of the second storage area of the storage circuit 223a in the control device 200a of the lighting device 1a according to Embodiment 2. The first storage area stores various parameter values (variables) required for running the lighting control application. The second storage area of the storage circuit 223a stores various set values used in the lighting control application.

[0298] In embodiment 2, as Figure 31 As shown, the first storage area of storage circuit 223a stores the diffusion display value S on lighting control application screen 400A and the virtual position display value d0 of light distribution shape object OBJ. The diffusion display value S represents the current value of the diffusion of lighting device 1a, as defined by the virtual position display value d0 of light distribution shape object OBJ. Furthermore, the first storage area stores the touch position detection value d'0 within adjustment area TA detected during the lighting control process of embodiment 2 described later, the diffusion target value S' calculated based on the touch position detection value d'0, and the diffusion difference ΔS, which is the difference between the diffusion target value S' and the diffusion display value S. The diffusion target value S' is calculated based on the touch position detection value d'0 within adjustment area TA or derived based on a correspondence relationship. In other words, the diffusion target value S' is defined by the touch position detection value d'0 within adjustment area TA.

[0299] The lateral spread of the lighting device 1a is changed at different adjustment scales according to the spread difference ΔS calculated every predetermined set value change time (second time threshold) T2th (eg, 0.5 [sec]) in the lighting control process of the second embodiment described later.

[0300] In embodiment 2, as Figure 32 As shown, the second storage area of the storage circuit 223 a stores the coarse diffusion adjustment scale setting value LSC (first adjustment interval) and the fine diffusion adjustment scale setting value SSC (second adjustment interval).

[0301] The diffusion coarse adjustment scale setting value LSC is, for example, 20[%]. The diffusion fine adjustment scale setting value SSC is, for example, 1[%]. In addition, these adjustment scales are examples and are not limited to the above. For example, the diffusion coarse adjustment scale setting value LSC may be, for example, 10[%] or 30[%], or the diffusion fine adjustment scale setting value SSC may be, for example, 0.5[%] or 2[%]. In embodiment 2, the diffusion fine adjustment scale setting value SSC (second adjustment interval) only needs to be an interval (variation range) narrower than the diffusion coarse adjustment scale setting value LSC (first adjustment interval). In addition, these diffusion coarse adjustment scale setting values LSC and diffusion fine adjustment scale setting values SSC may also be in a form that can be set by the user in the lighting control application.

[0302] Hereinafter, a specific example of the processing in the control device 200a of the lighting device 1a according to the second embodiment will be described.

[0303] The above-described processing during execution of the lighting control application is implemented by application software executed on a CPU of a smartphone, tablet computer, or the like constituting the control device 200 a , for example. Figure 33 This is a flowchart showing an example of initial setting processing in the control device 200a of the lighting device 1a according to the second embodiment.

[0304] When the lighting control application is started on the control device 200a, the display area DA is displayed. Figure 30 The lighting control application screen 400a is shown (step S001a).

[0305] Before the lighting control application is activated, the lighting device 1 a that is pre-registered in a space that can be paired with the control device 200 a is activated.

[0306] The transceiver circuit 225 of the control device 200a performs pairing processing (step S002a) with the lighting device 1a that is pre-registered as a control target device and is activated in a space that can be paired with the control device 200a, and sends a request command for the second setting information to the control target device (lighting device 1) (step S003a).

[0307] The transceiver circuit 111a of the lighting device 1a reads the second setting information stored in the storage circuit 113a and transmits it to the control device 200a. Furthermore, the electrode drive circuit 112 of the lighting device 1a supplies a drive voltage corresponding to the second setting information to each drive electrode 10, 13 of each liquid crystal cell 2 of the optical element 100.

[0308] The transceiver circuit 225a of the control device 200a determines whether the second setting information has been received from the lighting device 1a (step S004a). If the second setting information has not been received from the lighting device 1a (step S004a; No), the process of step S004a is repeated.

[0309] When receiving the second setting information from the lighting device 1a (step S004a; yes), the transceiver circuit 225a stores the light diffusion S2 of the second setting information of the lighting device 1a as the diffusion display value S. Figure 31 In the first storage area of the storage circuit 223a shown (step S005a).

[0310] In addition, the diffusion initial value S_ini (e.g., 50[%]) is stored in the first storage area. For example, when the lighting device 1a is first activated, or when the lighting device 1a activated in the pairing space is registered as a control target device, the diffusion initial value S_ini (e.g., 50[%]) may be stored instead of the above-mentioned steps S003a to S005a. Figure 31 The diffusion display value S is set as 50% (shown in the figure) and transmitted as first setting information (S1) to the registered lighting device 1a. In this case, the transceiver circuit 111a of the lighting device 1a stores the first setting information (S1) received from the control device 200a as second setting information (S2) in the storage circuit 113a. Furthermore, the electrode drive circuit 112 of the lighting device 1a supplies a drive voltage corresponding to the second setting information to each drive electrode 10, 13 of each liquid crystal cell 2 of the optical element 100.

[0311] The control device 200a calculates a virtual position display value d0 on the contour line of the light distribution shape object OBJ based on the diffuseness display value S stored in the first storage area of the storage circuit 223a (step S006a), and stores it in the first storage area.

[0312] The display control circuit 231 of the control device 200a reflects the diffusion display value S and the virtual position display value d0 on the outline of the light distribution shape object OBJ acquired in the above process and stored in the first storage area of the storage circuit 223a in the display control on the lighting control application screen 400A (step S007a).

[0313] If the processing up to step S007a is completed, the system moves to a standby state (step S008a), and then moves to Figure 34 The lighting control process shown (step S100a). Figure 34 This is a flowchart showing an example of the overall flow of the lighting control process in the control device 200a of the lighting device 1a according to the second embodiment.

[0314] exist Figure 34 In the illustrated standby state (step S101 a ), the control device 200 a executes a touch detection process in the adjustment area TA (step S102 a ).

[0315] Specifically, if no touch is detected in the adjustment area TA (step S102a; No), the control device 200a returns to the standby state of step S101a and repeatedly executes the processes of steps S101a to S102a. The execution interval of the processes of steps S101a to S102a is, for example, 10 ms.

[0316] If a touch is detected in the adjustment area TA (step S102a; yes), the process moves to Figure 35 The diffusion adjustment process (step S400) is shown. Figure 35 This is a flowchart showing an example of the diffusion adjustment process in the control device 200a of the lighting device 1a according to the second embodiment.

[0317] When moved to Figure 35 During the diffusion adjustment process shown, the control device 200a resets the count value T1 of the first timer that counts the duration of the touch within the adjustment area TA (T1=0, step S401).

[0318] Next, the control device 200a determines whether the count value T1 of the first timer has exceeded a predetermined long press detection time (first time threshold) T1th (e.g., 2 seconds) (step S402). For example, if 10 milliseconds is set as one count, the long press detection time (first time threshold) T1th is set to 200 counts (T1th = 200). Note that the long press detection time (first time threshold) T1th is not limited to 2 seconds (= 200).

[0319] If the count value T1 of the first timer is less than the predetermined long press detection time T1th (T1<T1th, step S402; No), the control device 200a then determines whether the touch state in the adjustment area TA continues (step S403). If the touch state in the adjustment area TA does not continue (step S403; No), that is, if the user's finger is released from the screen or the touch detection position deviates from the adjustment area TA, the control device 200a returns to the touch state. Figure 34 In the lighting control process shown, the control state of the diffusion degree of the lighting device 1 a is not adjusted, and the state shifts to a standby state (step S101 a ).

[0320] If the touch state in the adjustment area TA continues (step S403 ; Yes), the processes of steps S402 to S403 are repeatedly executed until the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S402 ; Yes).

[0321] If the count value T1 of the first timer exceeds the predetermined long press detection time T1th (step S402; yes), the control device 200a determines that it is in a long press state (step S404), resets the count value T2 of the second timer that counts the predetermined set value change time (second time threshold) T2th (T2=0, step S405), detects the touch position in the adjustment area TA, and stores it as the touch position detection value d'0 in Figure 17 The first storage area of the storage circuit 223a shown in FIG. 4 is used to calculate the diffusion target value S' corresponding to the touch position detection value d'0 (step S407), and the target value S' is stored in the storage area. Figure 17 The first storage area shown in FIG. 1 . The touch position detection value d'0 in the adjustment area TA is a position different from the position display value d0 of the light distribution shape object OBJ.

[0322] Then, the control device 200a reads the diffusion display value S and the diffusion target value S' from the first storage area, calculates the diffusion difference ΔS (ΔS = S' - S, step S408), and determines whether the size of the diffusion difference ΔS |ΔS| is less than the size of the diffusion fine-tuning scale setting value SSC (second adjustment interval) |SSC| (step S409).

[0323] When the size |ΔS| of the diffusion difference ΔS is greater than the size |SSC| of the diffusion fine adjustment scale setting value SSC (step S409; No), the control device 200a then determines whether the size |ΔS| of the diffusion difference ΔS is greater than the size |LSC| of the diffusion coarse adjustment scale setting value LSC (step S411).

[0324] If the magnitude of the diffusion difference ΔS |ΔS| is greater than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; yes), execute Figure 36 Coarse adjustment of diffusion shown. Figure 36 This is a flowchart showing an example of the coarse adjustment process of the degree of diffusion in the control device 200 of the lighting device 1 a according to the second embodiment.

[0325] The control device 200a reads the sign of the diffusivity difference ΔS and determines the adjustment direction of the diffusivity display value S relative to the diffusivity target value S'. Specifically, the control device 200a determines whether the sign of the diffusivity difference ΔS is "+ (positive)" (step S421).

[0326] If the sign of the diffusion difference ΔS is "+ (positive value)" (step S421; yes), it means that the adjustment direction of the diffusion display value S relative to the diffusion target value S' is the direction of increasing the diffusion of the lighting device 1a. In this case, the control device 200a adds the diffusion coarse adjustment scale setting value LSC (first adjustment interval) to the diffusion display value S (step S413) to update the diffusion display value S. In addition, the control device 200a calculates the virtual position display value d0 of the light distribution shape object OBJ corresponding to the diffusion display value S (step S423) and stores it in Figure 17 The first storage area of the storage circuit 223a is shown.

[0327] Next, the control device 200a determines whether the count value T2 of the second timer has exceeded a predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) (step S424). For example, when 10 [ms] is set as 1 count, the set value change time (second time threshold) T2th is set to 50 counts (T2th = 50). Note that the set value change time (second time threshold) T2th is not limited to 0.5 [sec] (= 50).

[0328] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S424; No), the process of step S424 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S424; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S424; Yes), the display control circuit 231 of the control device 200a reflects the diffusion display value S and the virtual position display value d0 of the light distribution shape object OBJ, which were acquired in the above process and stored in the first storage area of the storage circuit 223a, in the display control on the lighting control application screen 400 (step S425). Furthermore, the transceiver circuit 225a of the control device 200a reads the diffusion degree display value S stored in the first storage area, and transmits the read diffusion degree display value S as the first setting information (S1=S) to the lighting device 1a (step S426).

[0329] The transceiver circuit 111 of the lighting device 1a stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0330] return Figure 35, the control device 200a determines whether the long press state continues (step S410). If the long press state does not continue (step S410; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the adjustment area TA, the control device 200a returns to the state of the touch screen. Figure 34 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 a ), whereby the current diffusion degree display value S is determined to reflect the control state of the diffusion degree of the lighting device 1 a .

[0331] If the long press state continues (step S410; yes), the process returns to step S405. Here, if the long press state continues (step S410; yes), the magnitude of the diffusion difference ΔS |ΔS| is greater than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; yes), and the sign of the diffusion difference ΔS is "+ (positive value)" (step S421; yes), the process including the above-mentioned diffusion coarse adjustment process (steps S420, S421) is repeatedly executed every predetermined setting value change time (second time threshold) T2th. Figure 36 ) continues from step S405 to step S410 until the magnitude of the diffusivity difference ΔS, |ΔS|, becomes smaller than the magnitude of the diffusivity coarse adjustment scale setting value LSC, |LSC| (step S411 returns No). Thus, coarse adjustment is performed in the direction of increasing the diffusivity display value S by the diffusivity coarse adjustment scale setting value LSC (first adjustment interval).

[0332] return Figure 36 If the sign of the diffusion difference ΔS is "-(negative value)" (step S421; No), it means that the adjustment direction of the diffusion display value S relative to the diffusion target value S' is the direction of reducing the diffusion of the lighting device 1a. In this case, the control device 200a subtracts the diffusion coarse adjustment scale setting value LSC (first adjustment interval) from the diffusion display value S (step S427) to update the diffusion display value S. In addition, the control device 200a calculates the virtual position display value d0 of the light distribution shape object OBJ corresponding to the diffusion display value S (step S428) and stores it in Figure 17 The first storage area of the storage circuit 223a is shown.

[0333] Next, the control device 200a determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S429).

[0334] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S429; No), the process of step S429 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S429; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S429; Yes), the display control circuit 231 of the control device 200a reflects the diffusion display value S and the virtual position display value d0 of the light distribution shape object OBJ obtained in the above process and stored in the first storage area of the storage circuit 223a in the display control on the lighting control application screen 400 (step S430). Furthermore, the transceiver circuit 225a of the control device 200a reads the diffusion degree display value S stored in the first storage area, and transmits the read diffusion degree display value S as the first setting information (S1=S) to the lighting device 1a (step S426).

[0335] The transceiver circuit 111 of the lighting device 1a stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0336] return Figure 35 , the control device 200a determines whether the long press state continues (step S410). If the long press state does not continue (step S410; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the adjustment area TA, the control device 200a returns to the state of the touch screen. Figure 34 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 a ), whereby the current diffusion degree display value S is determined to reflect the control state of the diffusion degree of the lighting device 1 a .

[0337] If the long press state continues (step S410; yes), the process returns to step S405. Here, if the long press state continues (step S410; yes), the magnitude of the diffusion difference ΔS |ΔS| is greater than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; yes), and the sign of the diffusion difference ΔS is "- (negative value)" ( Figure 36 Step S421; No), the above-mentioned diffusion degree coarse adjustment process (steps S420, Figure 36) continues from step S405 to step S410 until the magnitude of the diffusion difference ΔS |ΔS| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411 returns No). Thus, coarse adjustment is performed in the direction of reducing the diffusion display value S by the diffusion coarse adjustment scale setting value LSC (first adjustment interval).

[0338] If the magnitude of the diffusion difference ΔS |ΔS| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; No), the execution Figure 37 The diffusion fine-tuning process is shown. Figure 37 This is a flowchart showing an example of the diffusion degree fine adjustment process in the control device 200a of the lighting device 1a according to the second embodiment.

[0339] The control device 200a reads the sign of the diffusivity difference ΔS and determines the adjustment direction of the diffusivity display value S relative to the diffusivity target value S'. Specifically, the control device 200a determines whether the sign of the diffusivity difference ΔS is "+ (positive)" (step S441).

[0340] If the sign of the diffusion difference ΔS is "+ (positive value)" (step S441; yes), it means that the adjustment direction of the diffusion display value S relative to the diffusion target value S' is the direction of increasing the diffusion of the lighting device 1a. In this case, the control device 200a adds the diffusion fine adjustment scale setting value SSC (second adjustment interval) to the diffusion display value S (step S442) to update the diffusion display value S. In addition, the control device 200a calculates the virtual position display value d0 of the light distribution shape object OBJ corresponding to the diffusion display value S (step S443) and stores it in Figure 17 The first storage area of the storage circuit 223a is shown.

[0341] Next, the control device 200a determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S444).

[0342] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S444; No), the process of step S444 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S444; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S444; Yes), the display control circuit 231 of the control device 200a reflects the diffusion display value S and the virtual position display value d0 of the light distribution shape object OBJ, which were acquired in the above process and stored in the first storage area of the storage circuit 223a, in the display control on the lighting control application screen 400 (step S445). Furthermore, the transceiver circuit 225a of the control device 200a reads the diffusion degree display value S stored in the first storage area of the storage circuit 223a, and transmits the read diffusion degree display value S as the first setting information (S1=S) to the lighting device 1a (step S446).

[0343] The transceiver circuit 111 of the lighting device 1a stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0344] return Figure 35 , the control device 200a determines whether the long press state continues (step S410). If the long press state does not continue (step S410; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the adjustment area TA, the control device 200a returns to the state of the touch screen. Figure 34 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 a ), whereby the current diffusion degree display value S is determined to reflect the control state of the diffusion degree of the lighting device 1 a .

[0345] If the long press state continues (step S410; yes), the process returns to step S405. Here, if the long press state continues (step S410; yes), the magnitude of the diffusion difference ΔS |ΔS| is smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; no), and the sign of the diffusion difference ΔS is "+ (positive value)" ( Figure 37 Step S441; Yes), the diffusion degree fine-tuning process (steps S440, Figure 37) The process from step S405 to step S410 is performed. Thus, fine adjustment is performed in the direction in which the diffusion display value S is expanded by the diffusion fine adjustment scale setting value SSC (second adjustment interval).

[0346] Afterwards, when the size |ΔS| of the diffusion difference ΔS becomes smaller than the size |SSC| of the diffusion coarse adjustment scale setting value SSC (step S409; yes), and the long press state is released (step S410; no), the touch position detection value d'0 in the adjustment area TA is roughly consistent with the virtual position display value d0 of the light distribution shape object OBJ (d'0≈d0), and the current diffusion display value S is reflected as the control state of the diffusion of the lighting device 1a.

[0347] return Figure 37 If the sign of the diffusion difference ΔS is "-(negative value)" (step S441; No), it means that the adjustment direction of the diffusion display value S relative to the diffusion target value S' is the direction of reducing the diffusion of the lighting device 1a. In this case, the control device 200a subtracts the diffusion fine adjustment scale setting value SSC (second adjustment interval) from the diffusion display value S (step S447) to update the diffusion display value S. In addition, the control device 200a calculates the virtual position display value d0 of the light distribution shape object OBJ corresponding to the diffusion display value S (step S448) and stores it in Figure 17 The first storage area of the storage circuit 223a is shown.

[0348] Next, the control device 200a determines whether the count value T2 of the second timer has exceeded a predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) (step S449).

[0349] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S449; No), the process of step S449 is repeated until the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S449; Yes). If the second timer count value T2 reaches or exceeds the predetermined set value change time T2th (T2 ≥ T2th, step S449; Yes), the display control circuit 231 of the control device 200a causes the diffusion display value S and the virtual position display value d0 of the light distribution shape object OBJ, which were acquired in the above process and stored in the first storage area of the storage circuit 223a, to be reflected in the display control on the lighting control application screen 400 (step S450). Furthermore, the transceiver circuit 225a of the control device 200a reads the diffusion degree display value S stored in the first storage area, and transmits the read diffusion degree display value S as the first setting information (S1=S) to the lighting device 1a (step S451).

[0350] The transceiver circuit 111 of the lighting device 1a stores the received first setting information as the second setting information in the storage circuit 113, reads out the second setting information stored in the storage circuit 113, and supplies the driving voltage corresponding to the second setting information to each driving electrode 10, 13 of each liquid crystal unit 2 of the optical element 100.

[0351] return Figure 35 , the control device 200a determines whether the long press state continues (step S410). If the long press state does not continue (step S410; No), that is, when the user's finger leaves the screen or the touch detection position deviates from the adjustment area TA, the control device 200a returns to the state of the touch screen. Figure 34 The lighting control process shown in FIG. 1 shifts to a standby state (step S101 a ), whereby the current diffusion degree display value S is determined to reflect the control state of the diffusion degree of the lighting device 1 a .

[0352] If the long press state continues (step S410; yes), the process returns to step S405. Here, if the long press state continues (step S410; yes), the magnitude of the diffusion difference ΔS |ΔS| is smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (step S411; no), and the sign of the diffusion difference ΔS is "- (negative value)" ( Figure 37 Step S441; No), the diffusion degree fine-tuning process (steps S440, Figure 37 ) The process from step S405 to step S410 is performed. Thus, fine adjustment is performed in the direction in which the diffusion degree display value S is reduced by the diffusion degree fine adjustment scale setting value SSC (second adjustment interval).

[0353] Afterwards, when the size |ΔS| of the diffusion difference ΔS becomes smaller than the size |SSC| of the diffusion coarse adjustment scale setting value SSC (step S409; yes), and the long press state is released (step S410; no), the touch position detection value d'0 within the adjustment area TA is consistent or approximately consistent with the virtual position display value d0 of the light distribution shape object OBJ (d'0≈d0), and the current diffusion display value S is reflected as the control state of the diffusion of the lighting device 1a.

[0354] Through the diffusion adjustment process of the second embodiment, the diffusion coarse adjustment process (first adjustment interval) is executed according to the touch detection position where the user maintains a long press state in the adjustment area TA of the lighting control application screen 400A. Figure 36 ) or the diffusion fine-tuning process ( Figure 37 Specifically, when the difference between the diffusivity target value S' and the diffusivity display value S (diffusion difference ΔS) is greater than the diffusivity coarse adjustment scale (first adjustment interval) ( Figure 35 Step S411; Yes), perform the diffusion degree coarse adjustment process ( Figure 36 ). In addition, when the difference between the diffusivity target value S' and the diffusivity display value S (diffusion difference ΔS) is smaller than the diffusivity coarse adjustment scale (first adjustment interval) ( Figure 35 Step S411; No), perform diffusion fine-tuning processing ( Figure 37 ). In addition, for example, if the diffusion degree is roughly adjusted ( Figure 36 ) Make the difference between the diffusivity target value S' and the diffusivity display value S (diffusion difference ΔS) smaller than the diffusivity coarse adjustment scale (first adjustment interval) ( Figure 35 Step S411; No), then seamlessly move to the diffusion fine-tuning process ( Figure 37 ).

[0355] Furthermore, the user performs a sliding operation while maintaining a long press state in the adjustment area TA of the lighting control application screen 400AA, thereby performing a coarse adjustment process of the diffusion degree ( Figure 36 ) and diffusion fine-tuning ( Figure 37 ) seamlessly transition between them. For example, if you are performing a diffusion fine-tuning process ( Figure 37 ) and then slide the value S' to make the difference between the diffusion target value S' and the diffusion display value S (diffusion difference ΔS) equal to or greater than the diffusion coarse adjustment scale (first adjustment interval) ( Figure 35 Step S411; Yes), then seamlessly move to the diffusion coarse adjustment process ( Figure 36 ). In addition, for example, if the diffusion degree coarse adjustment process ( Figure 36 ) and then slide the value S' to make the difference between the diffusion target value S' and the diffusion display value S (diffusion difference ΔS) smaller than the diffusion coarse adjustment scale (first adjustment interval) ( Figure 35 Step S411; No), then seamlessly move to the diffusion fine-tuning process ( Figure 37 ).

[0356] More specifically, if the magnitude of the diffusion difference ΔS |ΔS| is greater than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC| (|ΔS|≥|LSC|, Figure 35 If the value of the diffusion difference ΔS |ΔS| is less than the value of the diffusion coarse adjustment scale setting value LSC |LSC| (|ΔS| < |LSC|), the diffusion display value S corresponding to the virtual position display value d0 of the light distribution shape object OBJ is roughly adjusted in a direction close to the diffusion target value S' corresponding to the touch position detection value d'0. Figure 35Step S411; No), the diffusion display value S corresponding to the virtual position display value d0 of the light distribution shape object OBJ is fine-tuned in a direction close to the diffusion target value S' corresponding to the touch position detection value d'0.

[0357] Here, a specific example of the operation on the lighting control application screen 400A of the control device 200a according to the second embodiment will be described. Figure 38A 、 Figure 38B 、 Figure 38C 、 Figure 38D 、 Figure 38E 、 Figure 38F 、 Figure 38G 、 Figure 38H This is a diagram showing a specific example of operation on the lighting control application screen 400A of the control device 200a according to the second embodiment.

[0358] Figure 38A Indicates Figure 34 In the standby state (step S101a), the diffusion degree display value S is 70[%]. Figure 38B In Figure 38A In the standby state shown, a touch in the adjustment area TA is detected ( Figure 34 Step S102a; Yes), move to Figure 35 The diffusion adjustment process shown in the figure is performed to enter the long press state (step S404). In the adjustment area TA, the touch position detection value d'0 corresponding to the diffusion target value S' = 20[%] is detected. At this time, the spread difference ΔS becomes -50[%] (ΔS = S'(=20) - S(=70[%]) = -50[%]), and the magnitude of the spread difference ΔS |ΔS(=-50[%])| becomes greater than the magnitude of the spread coarse adjustment scale setting value LSC |LSC(=20[%])| (|ΔS| ≥ |LSC|, Figure 35 Step S411; Yes), the sign of the spread difference ΔS (=-50[%]) becomes "-(negative value)" ( Figure 36 Step S421; No). Thus, in the direction of reducing the diffusion degree of the lighting device 1a ( Figure 38B The coarse adjustment is performed in the direction of the arrow shown in FIG. 1 until the magnitude of the diffusion difference ΔS |ΔS| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC (=20[%])| ( Figure 35 Step S411; No).

[0359] Specifically, first, Figure 35 In the first round of the diffusion adjustment process from step S405 to step S410, if the count value T2 of the second timer exceeds the predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) ( Figure 36 Step S429; Yes), then Figure 38C As shown in FIG. 1 , the virtual position display value d0 of the light distribution shape object OBJ becomes the position corresponding to the diffusion display value S=50[%]. In the subsequent second round of processing, as shown in FIG. Figure 38D As shown, the virtual position display value d0 of the light distribution shape object OBJ is a position corresponding to the diffusion degree display value S=30[%].

[0360] Then, in the third round of processing, when the diffusion difference ΔS becomes -10[%] (ΔS=S'(=20[%])-S(=30[%])=-10[%]), the magnitude of the diffusion difference ΔS |ΔS(=-10[%])| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC(=20[%])| (|ΔS|<|LSC|, Figure 35 Step S411; No), if Figure 38E As shown, in the direction of reducing the diffusion of the lighting device 1a ( Figure 38B Fine adjustment is performed until the diffusion difference ΔS| becomes smaller than the diffusion fine adjustment scale setting value SSC (=1[%])| ( Figure 35 Step S409: Yes.) As a result, the touch position detection value d'0 corresponding to the diffusion target value S' and the virtual position display value d0 of the light distribution shape object OBJ become substantially the same (d'0≈d0).

[0361] exist Figure 38F In the middle, it means that after the long press state is maintained ( Figure 35 In step S410; yes), the user performs a sliding operation in the adjustment area TA. More specifically, Figure 38F , the following example is shown: by updating the touch position detection value d'0 in the adjustment area TA through the sliding operation, the magnitude of the diffusion difference ΔS |ΔS| becomes the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC (=20[%])| or more (|ΔS|≥|LSC|, Figure 35 Step S411; Yes), a touch position detection value d'0 corresponding to the diffusion target value S'=50[%] is detected in the adjustment area TA (the user's sliding action stops at this touch position detection value d'0). At this time, the diffusion difference ΔS becomes 30[%] (ΔS=S'(=50[%])-S(=20[%])=30[%]), and the magnitude of the diffusion difference ΔS |ΔS(=30[%])| becomes greater than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC(=20[%])| (|ΔS|≥|LSC|, Figure 35 Step S411; Yes), the sign of the diffusion difference ΔS (=30[%]) becomes "+(positive value)" ( Figure 36 Step S421; Yes). Thus, in the direction of increasing the diffusion degree of the lighting device 1a ( Figure 38F The coarse adjustment is performed in the direction of the arrow shown in FIG. 1 until the magnitude of the diffusion difference ΔS |ΔS| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC (=20[%])| ( Figure 35 Step S411; No).

[0362] Specifically, first, Figure 35 In the first round of the diffusion adjustment process from step S405 to step S410, if the count value T2 of the second timer exceeds the predetermined setting value change time (second time threshold) T2th (for example, 0.5 [sec]) ( Figure 36 Step S424; yes), then Figure 38G As shown, the virtual position display value d0 of the light distribution shape object OBJ is a position corresponding to the diffusion degree display value S=40[%].

[0363] Then, in the second round of processing, if the diffusion difference ΔS becomes 10% (ΔS = S'(=50%) - S(=40%) = 10%), the magnitude of the diffusion difference ΔS |ΔS(=10%)| becomes smaller than the magnitude of the diffusion coarse adjustment scale setting value LSC |LSC(=20%)| (|ΔS| < |LSC|, Figure 35 Step S411; No), then in the direction of increasing the diffusion degree of the lighting device 1a ( Figure 38F Make fine adjustments in the direction of the arrow shown. Figure 38H , an example is shown in which the user releases his finger from the screen at the moment when the virtual position display value d0 of the light distribution shape object OBJ becomes the position corresponding to the diffusion display value S=42[%] before the virtual position display value d0 of the light distribution shape object OBJ becomes approximately the same as the touch position detection value d'0 corresponding to the diffusion target value S'. Figure 35 Step S410; No). Thus, determination is made in a state where the current diffuseness display value S=42[%] is reflected as the control state of the diffuseness of the lighting device 1a.

[0364] Furthermore, the long press state is maintained at the position corresponding to the diffusion target value S'=50[%] (touch position detection value d'0) until the diffusion difference value ΔS| becomes smaller than the diffusion fine adjustment scale setting value SSC| (=1[%])|. Figure 35 In the case of step S409; Yes), in the direction of increasing the diffusion degree of the lighting device 1a ( Figure 38FFine adjustment is performed until the diffusion difference ΔS| becomes smaller than the diffusion fine adjustment scale setting value SSC| (=1[%])| ( Figure 35 Step S409; Yes). As a result, the touch position detection value d'0 corresponding to the diffusion target value S' (=50[%]) and the virtual position display value d0 of the light distribution shape object OBJ become the same or approximately the same (d'0≈d0). In this state, by the user releasing the finger from the screen ( Figure 35 Step S410; No), confirmation is performed in a state where the current diffusion display value S=50[%] is reflected as the control state of the diffusion of the lighting device 1a.

[0365] In the control device 200a of the lighting device 1a of the above-mentioned embodiment 2, when the difference between the diffusion target value S' defined by the touch position detection value d'0 in the adjustment area TA and the diffusion display value S, that is, the diffusion difference ΔS, is greater than the diffusion coarse adjustment scale setting value LSC (first adjustment interval), the diffusion display value S is adjusted with the diffusion coarse adjustment scale setting value LSC (first adjustment interval); when the diffusion difference ΔS is less than the diffusion coarse adjustment scale setting value LSC (first adjustment interval), the diffusion display value S is adjusted with the diffusion fine adjustment scale setting value SSC (second adjustment interval) which is narrower than the diffusion coarse adjustment scale setting value LSC (first adjustment interval).

[0366] In addition, when the duration T1 of the touch within the adjustment area TA exceeds the predetermined long press detection time (first time threshold) T1th, the detection of the touch position detection value d'0 that defines the diffusion target value S' is started, and when the touch within the adjustment area TA continues, the diffusion display value S is adjusted every predetermined set value change time (second time threshold) T2th.

[0367] Thus, for example, when adjusting the diffuseness fine adjustment scale (second adjustment interval) every set value change time (second time threshold) T2th, if the user releases their finger from the screen at the moment the desired diffuseness display value S is obtained, the current diffuseness display value S is reflected as the control state of the lateral diffuseness of the lighting device 1a. This makes it easier to obtain the desired diffuseness display value S, and fine adjustment of the diffuseness display value S is facilitated.

[0368] While preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to such embodiments. The contents disclosed in the embodiments are merely examples, and various modifications can be made without departing from the scope of the present disclosure. For example, if the lighting device of the present disclosure is capable of adjusting not only the light distribution shape but also the brightness and color of the light, a configuration that uses the configuration of the present disclosure to perform coarse or fine adjustments to the brightness and color of the light can also be employed. Appropriate modifications made without departing from the scope of the present disclosure naturally fall within the technical scope of the present disclosure.

[0369] [Explanation of Reference Numerals]

[0370] 1. 1a, lighting device; 2. liquid crystal cell; 2_1, first liquid crystal cell; 2_2, second liquid crystal cell; 2_3, third liquid crystal cell; 2_4, fourth liquid crystal cell; 4. light source; 5. first substrate; 6. second substrate; 7. sealing material; 8. liquid crystal layer; 9. substrate; 10. 10a, 10b, drive electrode; 11. first metal wiring; 11a, 11b, 11c, 11d, metal wiring; 12. substrate; 13. 13a, 13b, drive electrode; 14. second metal wiring; 14a, 14b, metal wiring; 15a, 15b, conductive portion; 16a, 16b, connecting terminal portion; 17. liquid crystal molecules; 18. alignment film; 19. alignment film; 20. display panel; 30. Touch sensor; 31. Detection element; 100. Optical element; 111. 111a. Transceiver circuit; 112. Electrode drive circuit; 113. 113a. Storage circuit; 200. 200a. Control device; 211. Detection circuit; 212. Conversion processing circuit; 223. 223a. Storage circuit; 225. 225a. Transceiver circuit; 231. Display control circuit; 300. Communication mechanism (wireless communication mechanism); 400. 400A. Lighting control application screen; AA. Active area; DA. Display area; FA. Detection area; GA. Peripheral area; OBJ. Light distribution shape object; TA. Adjustment area; TA1. First adjustment area; TA2. Second adjustment area.

Claims

1. A lighting device control device for controlling a plurality of lighting devices, wherein the plurality of lighting devices are capable of setting a light distribution shape of light irradiated onto a virtual plane in two directions: a first direction and a second direction intersecting the first direction, by adjusting the diffusion of light emitted from a light source, the control device comprising: A touch sensor having a detection area provided with a plurality of detection elements; and The display panel is provided with a display area that overlaps with the detection area of the touch sensor when viewed from above, and an adjustment screen for adjusting the diffusion degree of the lighting device is displayed in the display area, the adjustment screen being provided with an adjustment area for adjusting the diffusion degree of the lighting device. When the difference between the target value of the diffuseness defined by the touch detection position within the adjustment area and the current value of the diffuseness of the lighting device is greater than a first adjustment interval, adjusting the diffuseness of the lighting device by the first adjustment interval; When the difference between the target value of the diffusivity and the current value of the diffusivity of the lighting device is smaller than the first adjustment interval, the diffusivity of the lighting device is adjusted at a second adjustment interval narrower than the first adjustment interval.

2. The control device for a lighting device according to claim 1, wherein: The adjustment screen defines an X direction corresponding to the first direction, a Y direction corresponding to the second direction, and an XY plane with a predetermined position on the adjustment screen as an origin. A light distribution shape object with the origin of the XY plane as a center point is set on the adjustment screen.

3. The control device for a lighting device according to claim 2, wherein: The adjustment area includes: a first adjustment region including a region overlapping with the X axis of the XY plane and capable of adjusting the light distribution shape in the X direction; and The second adjustment region includes a region overlapping with the Y axis of the XY plane and is capable of adjusting the light distribution shape in the Y direction.

4. The control device for a lighting device according to claim 3, wherein: Regarding the light distribution shape object, on the contour line of the light distribution shape object, the position on the X-axis corresponding to the current value of the diffusion in the first direction of the lighting device and the position on the Y-axis corresponding to the current value of the diffusion in the second direction of the lighting device overlap, and changes into a circle or an ellipse according to the change of the current value of the diffusion in the first direction of the lighting device and the change of the current value of the diffusion in the second direction of the lighting device.

5. The control device for a lighting device according to claim 4, wherein: When the difference between the target value of the diffusion degree in the first direction defined by the touch detection position in the first adjustment area and the current value of the diffusion degree in the first direction of the lighting device is greater than a first adjustment interval, adjusting the diffusion degree in the first direction of the lighting device by the first adjustment interval; When the difference between the target value of the diffuseness in the first direction and the current value of the diffuseness in the first direction of the lighting device is smaller than the first adjustment interval, adjusting the diffuseness in the first direction of the lighting device at a second adjustment interval narrower than the first adjustment interval; When the difference between the target value of the diffuseness in the second direction defined by the touch detection position in the second adjustment area and the current value of the diffuseness in the second direction of the lighting device is greater than a first adjustment interval, adjusting the diffuseness in the second direction of the lighting device by the first adjustment interval; When the difference between the target value of the second-direction diffusivity and the current value of the second-direction diffusivity of the lighting device is smaller than the first adjustment interval, the second-direction diffusivity of the lighting device is adjusted at a second adjustment interval narrower than the first adjustment interval.

6. The control device for a lighting device according to claim 5, wherein: When the duration of the touch in the first adjustment area exceeds a predetermined first time threshold, detection of the touch position in the X direction defining a target value of the spread in the first direction is started; When the duration of the touch in the second adjustment area exceeds the first time threshold, detection of the touch position in the Y direction that defines the target value of the spread in the second direction is started.

7. The control device for a lighting device according to claim 6, wherein: When the touch in the first adjustment area continues, the diffusion degree of the lighting device in the first direction is adjusted at intervals of a predetermined second time threshold different from the first time threshold. When the touch within the second adjustment area continues, the diffusion degree of the lighting device in the second direction is adjusted every second time threshold.

8. The control device for a lighting device according to claim 2, wherein: The adjustment region is provided within a region of a figure including a position corresponding to a maximum value of the diffusion degree of the lighting device on a contour line.

9. The control device for a lighting device according to claim 8, wherein: The position of the light distribution shape object corresponding to the current value of the diffusion of the lighting device overlaps with the contour line of the light distribution shape object, and the light distribution shape object expands or contracts while maintaining its shape according to changes in the current value of the diffusion of the lighting device.

10. The control device for a lighting device according to claim 9, wherein: When the duration of the touch in the adjustment area exceeds a predetermined first time threshold, detection of a touch position defining a target value of the spread is started.

11. The control device for a lighting device according to claim 10, wherein: When the touch within the adjustment area continues, the diffusion degree of the lighting device is adjusted every predetermined second time threshold that is different from the first time threshold.

Images