Control device for lighting device

Abstract

The invention provides a control device of a lighting device capable of seamlessly shifting from a coarse adjustment mode to a fine adjustment mode. A control device of a lighting device includes a storage circuit that stores a first detection value (x '0 (y' 0)) detected at a first time in an adjustment region provided on an adjustment screen, and a second detection value (x '1 (y' 1)) detected at a second time after the first time in the adjustment region. A first adjustment mode in which the light distribution shape is adjusted at a first adjustment interval and a second adjustment mode in which the light distribution shape is adjusted at a second adjustment interval narrower than the first adjustment interval are provided. In the first adjustment mode, when the amount of movement ([delta] x = x '1-x' 0 ([delta] y = y '1-y' 0)) of the touch detection position calculated by subtracting the first detection value (x '0 (y' 0)) from the second detection value (x '1 (y' 1)) is equal to or greater than a predetermined first time threshold value, the adjustment mode is shifted to the second adjustment mode when the amount of movement ([delta] x = x '1-x' 0 ([delta] y = y '1-y' 0)) of the touch detection position, which is calculated by subtracting the first detection value (x '0 (y' 0)), is maintained at or less than a predetermined movement amount threshold value ([delta] xth ([delta] yth)).

Description

Technical Field

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

[0002] Conventional lighting fixtures have been developed that combine a thin lens with a prism pattern on a light source such as an LED. By varying the distance between the light source and the thin lens, the light distribution angle is altered. For example, a lighting fixture has been disclosed that uses a liquid crystal dimming element covering the front surface of a transparent bulb, switching 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 two directions can be controlled by driving each liquid crystal cell separately. Thus, in an illumination device capable of controlling the diffusion of light in two directions, it is desirable to have a control device capable of performing a rough adjustment (hereinafter also referred to as "coarse adjustment") of the diffusion of light in both directions before transitioning to a more precise adjustment (hereinafter also referred to as "fine adjustment").

[0008] An object of the present invention is to provide a control device for a lighting device that can seamlessly transition from a coarse adjustment mode to a fine adjustment mode.

[0009] Solutions for solving technical problems

[0010] A lighting device control device according to one embodiment of the present disclosure controls a plurality of lighting devices capable of setting a light distribution shape for light emitted from a light source in two directions, a first direction and a second direction intersecting the first direction. The lighting device control device includes: a touch sensor having a detection area provided with a plurality of detection elements; a display panel having a display area that overlaps with the detection area of the touch sensor in a plan view, and displaying an adjustment screen for the light distribution shape in the display area; and a storage circuit that stores a first detection value detected at a first time in an adjustment area provided on the adjustment screen and a second detection value detected at a second time later than the first time in the adjustment area. The lighting device control device includes a first adjustment mode for adjusting the light distribution shape at a first adjustment interval; and a second adjustment mode for adjusting the light distribution shape at a second adjustment interval narrower than the first adjustment interval. In the first adjustment mode, the control device shifts to the second adjustment mode when a time during which an amount of movement of a touch detection position calculated by subtracting the first detection value from the second detection value remains below a predetermined movement amount threshold becomes greater than a predetermined first time threshold. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] Figure 1B It is a perspective view showing an example of an optical element according to the 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 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 the change in shape of light caused by the optical element according to the embodiment.

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

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

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

[0024] Figure 9 This is a conceptual diagram for 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 It 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 a control device according to the embodiment.

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

[0030] Figure 15A This is a conceptual diagram showing an example of a display format of a rough adjustment mode screen of the control device according to the first embodiment.

[0031] Figure 15B This is a conceptual diagram showing an example of a display format of a rough adjustment mode screen of the control device according to the first embodiment.

[0032] Figure 15C This is a conceptual diagram showing an example of a display format of a rough adjustment mode screen of the control device according to the first embodiment.

[0033] Figure 15D This is a conceptual diagram showing an example of a display format of a rough adjustment mode screen of the control device according to the first embodiment.

[0034] Figure 16This is a diagram illustrating the relationship between the position on the screen and the light diffusion degree in the coarse adjustment mode of the control device according to the first embodiment.

[0035] Figure 17A This is a conceptual diagram showing a first example of the display format of the fine adjustment mode screen of the control device according to the first embodiment.

[0036] Figure 17B This is a conceptual diagram showing a first example of the display format of the fine adjustment mode screen of the control device according to the first embodiment.

[0037] Figure 18A This is a conceptual diagram showing a second example of the display format of the fine adjustment mode screen of the control device according to the first embodiment.

[0038] Figure 18B This is a conceptual diagram showing a second example of the display format of the fine adjustment mode screen of the control device according to the first embodiment.

[0039] Figure 19A This is a first diagram illustrating the relationship between the position on the fine adjustment mode screen and the light diffusion degree of the control device according to the first embodiment.

[0040] Figure 19B This is a second diagram illustrating the relationship between the position on the fine adjustment mode screen and the light diffusion degree of the control device according to the first embodiment.

[0041] Figure 20 This is a flowchart showing an example of initial setting processing in the lighting device control device according to the first embodiment.

[0042] Figure 21 This is a conceptual diagram showing an example of a storage area in the lighting device control device according to the first embodiment.

[0043] Figure 22 This is a flowchart showing an example of the overall flow of lighting control processing in the lighting device control device according to the first embodiment.

[0044] Figure 23 This is a flowchart showing an example of processing in the rough adjustment mode in the X direction in the control device of the lighting device according to the first embodiment.

[0045] Figure 24 This is a flowchart showing an example of processing in the fine adjustment mode in the X direction in the control device of the lighting device according to the first embodiment.

[0046] Figure 25 This is a flowchart showing an example of processing in the rough adjustment mode in the Y direction in the control device of the lighting device according to the first embodiment.

[0047] Figure 26 This is a flowchart showing an example of processing in the fine adjustment mode in the Y direction in the control device of the lighting device according to the first embodiment.

[0048] Figure 27 This is a flowchart showing an example of the overall flow of lighting control processing in the lighting device control device according to the second embodiment.

[0049] Figure 28 This is a flowchart showing an example of processing in the automatic fine adjustment mode in the X direction in the control device of the lighting device according to the second embodiment.

[0050] Figure 29 This is a flowchart showing an example of processing in the automatic fine adjustment mode in the Y direction in the control device of the lighting device according to the second embodiment. DETAILED DESCRIPTION

[0051] 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. In addition, the disclosure is only an example, and appropriate changes that maintain the gist of the invention that can be easily thought of by those skilled in the art 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 form, 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 in the figures that have appeared are sometimes marked with the same figure numerals, and detailed descriptions are appropriately omitted.

[0052] 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.

[0053] exist Figure 1BIn the embodiment, the Dz direction represents the emission direction of light from the light source 4 and the reflector 4a. The optical element 100 is formed by stacking 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 in the Dz direction. In the present disclosure, the optical element 100 is formed by stacking 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 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 orthogonal to the 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).

[0054] 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. Furthermore, 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."

[0055] 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 the figure, the driving electrodes are visible only through the substrate, but in order to prioritize the 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, when priority is given to ease of understanding, 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. 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 , the third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4 are exemplified 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.

[0056] 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 .

[0057] 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.

[0058] 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 to the drive electrodes 10a, 10b; and a plurality of metal wirings 11c, 11d for supplying drive voltages to a plurality of drive electrodes 13a, 13b (see FIG. Figure 3 ) applied driving voltage. 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 as well as Figure 7 As shown, in the third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4, the driving electrodes 10 on the first substrate 5 extend along the Dx direction. In addition, in the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2, the driving electrodes 10 on the first substrate 5 extend along the Dy direction.

[0059] 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 "drive electrodes 13". In addition, the plurality of metal wirings 14a, 14b are sometimes referred to as "second metal wirings 14". As shown in FIG. Figure 3 as well as Figure 7 As shown, in the third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4, the driving electrodes 13 on the second substrate 6 extend along the Dy direction. In addition, in the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2, the driving electrodes 13 on the second substrate 6 extend along the Dx direction.

[0060] 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 and 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 the electrical resistance of translucent conductive oxides such as ITO.

[0061] Metal wiring 11c of first substrate 5 and metal wiring 14a of second substrate 6 are connected via vias 15a formed of, for example, conductive paste. Furthermore, metal wiring 11d of first substrate 5 and metal wiring 14b of second substrate 6 are connected via vias 15b formed of, for example, conductive paste.

[0062] Furthermore, in areas of the first substrate 5 that do 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.

[0063] 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."

[0064] 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. In the liquid crystal unit 2 constructed in this way, 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 orientation direction of the liquid crystal molecules 17 of the liquid crystal layer 8 can be controlled. The area in which the orientation direction of the liquid crystal molecules 17 of the liquid crystal layer 8 can be controlled is referred to as 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 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 referred to as the "peripheral area GA" (refer to Figure 5 ).

[0065] like Figure 5 As shown, in the active area AA of the first substrate 5, the driving electrodes 10 (in Figure 5 In addition, in the active area AA of the second substrate 6, the driving electrode 13 is covered by the alignment film 19 (in Figure 5 In the alignment film 18 and the alignment film 19, the liquid crystal molecules are aligned in different directions.

[0066] 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 .

[0067] like Figure 6A as well as Figure 6B As shown, 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. 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 driving electrodes 13a and 13b indicated by the dotted arrows are orthogonal. The following describes a case where the extension directions of these driving electrodes 10 and 13 are orthogonal to the orientation directions of the orientation films 18 and 19 covering them, but they may also intersect at angles other than orthogonal, for example, within the angle range of 85° to 90°. In addition, the driving electrodes 10 on the first substrate 5 side and the driving electrodes 13 on the second substrate 6 side are also preferably orthogonal to each other, but may also intersect at an angle range 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-orientation treatment.

[0068] Here, a structure in 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 : is a conceptual diagram for explaining the change in shape of light 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 .

[0069] 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.

[0070] In each liquid crystal cell 2, as Figure 6A as well as 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, causing the polarization component of the transmitted light to rotate 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 s-polarized 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 p-polarized as it moves toward the second substrate 6 side. This rotation of the polarization components is referred to as optical rotation.

[0071] Figure 8A The figure 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 cell 2, and no polarized light component is diffused.

[0072] Here, if Figure 8B As shown, for example, by generating a potential difference between the drive electrodes 10a and 10b on the first substrate 5 side of the first liquid crystal cell 2_1, a transverse electric field is generated, and the liquid crystal molecules are aligned in an arc shape between the electrodes, thereby forming a refractive index distribution in the liquid crystal layer 8 along the Dx direction. If light from the light source 4 passes through in this state, the polarized light component parallel to the Dx direction (in Figure 8B The p-polarized light component is acted upon by the above-mentioned refractive index distribution, whereby the p-polarized light component diffuses along the Dx direction.

[0073] 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 along the Dy direction on the second substrate 6 side, causing the s-polarized light component to diffuse along the Dy direction on the second substrate 6 side. Specifically, the polarized light component that changes from the p-polarized light component to the s-polarized light component while passing through the liquid crystal layer 8 of the first liquid crystal cell 2_1 also diffuses along the Dy direction. Meanwhile, the polarized light component that was incident on the first liquid crystal cell 2_1 as the s-polarized light component undergoes optical rotation while passing through the liquid crystal layer 8. However, since it becomes a polarized light component that crosses both refractive index distributions, it does not diffuse and passes through the first liquid crystal cell 2_1, undergoing only optical rotation.

[0074] The polarized light component that is the s-polarized light component when incident on the first liquid crystal cell 2_1 changes to the p-polarized light component after passing through the first liquid crystal cell 2_1, and the second liquid crystal cell 2_2 acts on the p-polarized light component. Figure 8A as well as Figure 8B As shown, in the light incident on the optical element 100, the first liquid crystal cell 2_1 acts on the p-polarized light component, and the second liquid crystal cell 2_2 acts on the s-polarized light component. The third liquid crystal cell 2_3 and the fourth liquid crystal cell 2_4 are arranged 90° rotated relative to the first liquid crystal cell 2_1 and the second liquid crystal cell 2_2, so the polarized light components they act on are also swapped by 90°. That is, when light is incident on the optical element 100, the third liquid crystal cell 2_3 acts on the s-polarized light component, while the fourth liquid crystal cell 2_4 acts on the p-polarized light component.

[0075] 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 of 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 of 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 light component, thereby increasing the shape of the light primarily in the Dx direction. This effect is referred to as lateral diffusion.

[0076] 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 of 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 of 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 light component, thereby increasing the shape of the light primarily in the Dy direction. This effect is called longitudinal diffusion.

[0077] 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 [%]. Furthermore, if the relationship between voltage difference and light diffusion is not linear, another potential difference may be used instead of 15 [V].

[0078] 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, more preferably approximately 15 μm to 35 μm. This minimizes the influence 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, which naturally prevents residual images of the liquid crystal molecules.

[0079] Furthermore, the orientation direction of each orientation film, the extension direction of the drive electrodes of each substrate, and the angle formed therebetween 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 properties to be exerted.

[0080] In addition, in this embodiment, with respect to 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 may also be adopted.

[0081] In the present disclosure, in the lighting device 1 of the above structure, 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 above longitudinal diffusion and lateral diffusion can also be collectively referred to as light diffusion. Moreover, the shape of the light emitted from the optical element is thereby changed. The shape of the light refers to the shape of the light appearing on a surface parallel to the emission surface of the optical element, and it can also be referred to as a light distribution shape. Hereinafter, with reference to Figure 9 The control of light diffusion degree in the present invention will be described.

[0082] Figure 9 : 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 the imaginary plane xy perpendicular to the Dz direction is shown. Note that the outline of the actual irradiation range may be slightly unclear due to the distance from the light source 4, the diffraction phenomenon of light, and the like.

[0083] 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.

[0084] 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.

[0085] In this disclosure, the minimum diffusion of lateral diffusion and longitudinal diffusion is set to 0% and the maximum diffusion is set to 100%. More specifically, when the lateral diffusion 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 affect 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 no potential is supplied to the electrodes. On the other hand, when the lateral diffusion 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) affects the refractive index distribution of the liquid crystal layer 8 to the greatest extent. 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 electrode.

[0086] Figure 9 The outline a shown is an example of the irradiation range when both the lateral diffusion and the longitudinal diffusion are 100% . Figure 9 The outline b shown exemplifies the irradiation range 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 when both the lateral and longitudinal diffusivities are 0%. In other words, the outline d shows the light distribution when the light from the light source 4 is emitted without any control by the optical element 100 (so-called directly passing through the optical element 100).

[0087] In this manner, 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 spreads 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 to be varied. Hereinafter, the control that varies the light distribution shape of the light emitted from the lighting device 1 will also be referred to as "light distribution control."

[0088] 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, dimming (brightness) may also be included as a parameter controllable in illumination device 1.

[0089] Figure 10 This is a schematic diagram illustrating an example of the 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 may be a portable communication terminal device such as a smartphone or tablet computer. 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.

[0090] Each lighting device 1_1, 1_2, ..., 1_N exchanges data and various command signals with the control device 200 via a communication unit 300. In this disclosure, the communication unit 300 is, for example, a wireless communication unit 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 specified 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.

[0091] In addition, if Figure 10 As shown, in this disclosure, an example is given 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 controlled devices in the control device 200. However, this disclosure is not limited to the number of controlled 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 controlled device (lighting device 1_n). However, the setting parameter is not limited to light diffusion degree. For example, the setting parameter for the controlled device (lighting device 1_n) may also include the light intensity and color temperature of the lighting device 1_n.

[0092] In addition, in the present disclosure, it is sufficient to register at least one lighting device 1 as a control target device. For the sake of convenience, the following description will focus on the processing between the control device 200 and one lighting device 1.

[0093] Figure 11This is an external view of an example of a control device 200 according to an embodiment. The control device 200 is a display device (touch screen) with a touch detection function, integrating a display panel 20 and a touch sensor 30. The control device 200 includes various internal components, such as a detection IC, a display IC, and a CPU (Central Processing Unit) of a smartphone or tablet computer, which constitutes the control device 200, RAM (Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), ROM (Read Only Memory), and a GPU (Graphics Processing Unit).

[0094] The display panel 20 is an integrated device that incorporates the touch sensor 30, a so-called in-cell or hybrid device. The display panel 20 being integrated with the touch sensor 30 means, for example, that the display panel 20 includes some components, such as a substrate and electrodes, that function as both the display panel 20 and the touch sensor 30. Alternatively, the display panel 20 may be an externally mounted device, in which the touch sensor 30 is mounted on the display device.

[0095] 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 also be, for example, an organic EL display panel (OLED: Organic Light Emitting Diode) or an inorganic EL display panel (micro LED, mini LED).

[0096] An example of the touch sensor 30 is a capacitance touch sensor, but the touch sensor 30 is not limited thereto and may be a resistive film touch sensor, an ultrasonic touch sensor, or an optical touch sensor.

[0097] 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.

[0098] Hereinafter, a basic configuration and operation for controlling the light diffusion degree of the lighting device 1 in the configuration of the lighting system according to the above-described embodiment will be described.

[0099] Figure 13 1 is a diagram showing an example of a control block configuration of the control device 200 according to the embodiment. First, the control block configuration for executing each process described below will be described.

[0100] like Figure 13 As shown, the control device 200 involved in the embodiment 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 can also 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 are composed of, for example, a CPU, RAM, EEPROM, ROM, etc. of a smartphone, tablet computer, etc. that constitutes the control device 200. In addition, the display control circuit 231 can also be a display IC mounted on the display panel 20 as described above, and further, for example, it can also be a structure including a GPU, etc. of a smartphone, tablet computer, etc. that constitutes the control device 200. The transceiver circuit 225 is composed of, for example, a wireless communication module of a smartphone, tablet computer, etc. that constitutes the control device 200.

[0101] 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 .

[0102] 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.

[0103] The storage circuit 223 is comprised of, for example, RAM, EEPROM, or ROM in a smartphone, tablet, or other device that constitutes the control device 200. In the present disclosure, the storage circuit 223 stores setting information, including various setting values (in this disclosure, light diffusion) for the lighting device 1. The storage circuit 223 also temporarily stores, for example, intermediate data used in various processes described below.

[0104] The transceiver circuit 225 transmits and receives setting information to and from the lighting device 1. Specifically, the transceiver circuit 225 transmits the light diffusivity S1x in the Dx direction and the light diffusivity 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 diffusivity information (light diffusivity S2x in the Dx direction and light diffusivity S2y in the Dy direction) transmitted from the lighting device 1.

[0105] 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.

[0106] Figure 14 1 is a diagram showing an example of a control block structure of the lighting device 1 according to the embodiment. Figure 14 As shown, the lighting device 1 according to the embodiment includes a transceiver circuit 111 , an electrode drive circuit 112 , and a storage circuit (second storage circuit) 113 as control blocks for controlling the optical element 100 .

[0107] 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.

[0108] In the present invention, 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 transceiver circuit 111 then stores 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 below, as the new Dx-direction light diffusion S2x and Dy-direction light diffusion S2y in the storage circuit 113. In other words, the transmission of the first light diffusion information from the control device 200 to the lighting device 1 updates the second light diffusion information 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 transmission of the first light diffusion information from the control device 200 causes the second light diffusion information to be stored.

[0109] The electrode driving circuit 112 supplies a driving voltage corresponding to the Dx direction light diffusion S2x and the Dy direction light diffusion S2y stored in the storage circuit 113 to the driving electrodes 10 and 13 of the liquid crystal cells 2 of the optical element 100 .

[0110] 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 .

[0111] 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 .

[0112] The storage circuit 113 is composed of, for example, a RAM, an EEPROM, a ROM, etc. In the present disclosure, the final value of the second setting information at the time of the last operation of the lighting device 1 is stored in the storage circuit 113 .

[0113] The processing of the lighting system in the present disclosure is performed by application software (hereinafter also referred to as "lighting control application") running on the control device 200. In addition, the lighting control application in the present disclosure has: a coarse adjustment mode (first adjustment mode) for adjusting various setting values of the lighting device 1 (light diffusion in the present disclosure) with a coarser (wider) step size (first adjustment interval) (hereinafter also referred to as "coarse adjustment"); and a fine adjustment mode (second adjustment mode) for adjusting with a finer (narrower) step size (second adjustment interval) than the coarse adjustment mode (hereinafter also referred to as "fine adjustment"). Specific examples of each processing and display format in the lighting control application are described in detail below.

[0114] (Implementation Method 1)

[0115] Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D This is a conceptual diagram showing an example of a display format of a rough adjustment mode screen of the control device according to the first embodiment.

[0116] In the present disclosure, description will be given assuming that the lighting control application is installed in advance in the control device 200 .

[0117] When the lighting control application is started, the Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15DThe coarse adjustment mode screen 400 shown executes pairing processing 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 coarse adjustment mode screen 400, and the user may touch the pairing button to execute pairing processing 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.

[0118] exist Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D On the coarse adjustment mode screen 400 shown, the X direction is defined to correspond to the Dx direction (first direction) in the light diffusion control of the lighting device 1, and the Y direction is defined to correspond to the Dy direction (second direction) in the light diffusion control of the lighting device 1. Furthermore, the coarse adjustment mode screen 400 defines an XY plane with an origin O(0, 0) at a predetermined position on the display area DA.

[0119] 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 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D In the example shown, a light distribution shape object OBJ is displayed with the origin O(0, 0) of the XY plane on the coarse adjustment mode screen 400 as the center point, and a first slider S1 and a second slider S2 for setting the light diffusion degree of the lighting device 1 are arranged on the contour line of the light distribution shape object OBJ.

[0120] 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 rough adjustment mode screen 400 .

[0121] The first slider S1 and the second slider S2 are, for example, images displayed on the coarse adjustment mode screen 400 , and can be moved by the user by touching them with a finger (drag operation).

[0122] By moving the first slider S1 in the X direction, the shape of the light distribution shape object OBJ can be changed. This controls the light diffusion in the Dx direction (lateral diffusion) of the lighting device 1. Furthermore, by moving the second slider S2 in the Y direction, the shape of the light distribution shape object OBJ can be changed. This controls the light diffusion in the Dy direction (longitudinal diffusion) of the lighting device 1.

[0123] exist Figure 15AIn FIG. 1 , an example is shown in which the light diffusion Sx in the Dx direction of the lighting device 1 is 50% and the light diffusion Sy in the Dy direction is 50%. Figure 15A As shown, the values of the light diffusion Sx in the Dx direction and the light diffusion Sy in the Dy direction are also displayed on the coarse adjustment mode screen. In addition, the light diffusion Sx in the Dx direction is referred to as the lateral diffusion Sx, and the light diffusion Sy in the Dy direction is referred to as the longitudinal diffusion Sy. Figure 15B In FIG. 1 , an example is shown in which the lateral diffusion Sx of the lighting device 1 is set to 100[%] and the longitudinal diffusion Sy is set to 100[%]. Figure 15C In FIG. 1 , an example is shown in which the lateral diffusion Sx of the lighting device 1 is set to 0[%] and the longitudinal diffusion Sy is set to 0[%]. Figure 15D , an example is shown in which the lateral diffusivity Sx of the lighting device 1 is set to 100[%] and the longitudinal diffusivity Sy is set to 50[%].

[0124] In this disclosure, Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D As shown, the shape of the light distribution shape object OBJ on the rough adjustment mode screen 400 changes to a circle or an ellipse as the first slider S1 and the second slider S2 are moved.

[0125] like Figure 9 As shown, in the lighting device 1 as the control object in the present disclosure, even when both the lateral diffusion Sx and the longitudinal diffusion Sy of the lighting device 1 are set to 0 [%], light (contour d) is irradiated to a predetermined substantially circular range. Figure 15C As shown, when both the lateral diffusivity Sx and the longitudinal diffusivity Sy are set to 0[%], a small circular light distribution shape object OBJ is displayed.

[0126] Furthermore, in this disclosure, Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D As shown, a first adjustment area TA1 is provided as an area capable of acquiring a touch detection position in the X direction. The first adjustment area TA1 is set to a range in which the light distribution shape in the X direction can be adjusted over the entire range from a minimum value (0%) to a maximum value (100%) in the coarse adjustment mode (first adjustment mode).

[0127] Furthermore, in the present disclosure, the scale of one step in the first adjustment area TA1 in the fine adjustment mode (second adjustment mode) is the same as the scale of one step in the first adjustment area TA1 in the coarse adjustment mode (first adjustment mode). In other words, in the first adjustment area TA1, the amount of movement of the touch detection position in the X direction when the position changes by one step in the fine adjustment mode (second adjustment mode) is the same as the amount of movement of the touch detection position in the X direction when the position changes by one step in the coarse adjustment mode (first adjustment mode).

[0128] In coarse adjustment mode, the first slider S1 is configured to be movable in the X direction within the first adjustment area TA1, from a position on the outline of the light distribution shape object OBJ when the lateral spread Sx is 0% to a position on the outline of the light distribution shape object OBJ when the lateral spread Sx is 100%. Therefore, even if the user's finger leaves the screen, the first slider S1 will not move if it moves out of the first adjustment area TA1.

[0129] Furthermore, in this disclosure, Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D As shown, a second adjustment area TA2 is provided as an area capable of acquiring a touch detection position in the Y direction. The second adjustment area TA2 is set to a range capable of adjusting the light distribution shape in the Y direction over the entire range from a minimum value (0%) to a maximum value (100%) in the coarse adjustment mode (first adjustment mode).

[0130] Furthermore, in the present disclosure, the scale of one step in the second adjustment area TA2 in the fine adjustment mode (second adjustment mode) is the same as the scale of one step in the second adjustment area TA2 in the coarse adjustment mode (first adjustment mode). In other words, in the second adjustment area TA2, the amount of movement of the touch detection position in the Y direction when the position changes by one step in the fine adjustment mode (second adjustment mode) is the same as the amount of movement of the touch detection position in the Y direction when the position changes by one step in the coarse adjustment mode (first adjustment mode).

[0131] In coarse adjustment mode, the second slider S2 is configured to be movable in the Y direction within the second adjustment area TA2, from a position on the outline of the light distribution shape object OBJ when the vertical divergence Sy is 0% to a position on the outline of the light distribution shape object OBJ when the vertical divergence Sy is 100%. Therefore, even if the user's finger leaves the screen, the second slider S2 will not move if it moves out of the second adjustment area TA2.

[0132] Figure 16This diagram illustrates the relationship between position and light diffusion in a lighting application in the 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 and positions (coordinates) on the detection area FA of the touch sensor 30 are considered equivalent.

[0133] On the rough adjustment mode screen 400 of the control device 200 according to the first embodiment, the lateral spread Sx of the lighting device 1 can be set according to the amount of movement of the position x of the intersection of the X axis on the XY plane and the outline of the light distribution shape object OBJ.

[0134] In the present disclosure, the position x of the intersection of the X-axis and the outline of the light distribution shape object OBJ is set as the center point of the first slider S1. In other words, the position x0 of the first slider S1 on the display area DA overlaps with the position x of the intersection of the X-axis and the outline of the light distribution shape object OBJ. Therefore, by touching the first slider S1 and moving it in the X-axis direction, the lateral diffusion Sx of the lighting device 1 can be set. Figure 16 “Sx” displayed near the first slider S1 in FIG. 1 represents the lateral diffusion degree of the lighting device 1 (eg, “50” [%]).

[0135] When 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 defined as X 100 When the intersection of the X axis and the contour line of the light distribution shape object OBJ when the lateral diffusion Sx is 0[%] is set to X0, the reference movement amount Px in the X direction on the XY plane when the lateral diffusion change ΔSx of the lighting device 1 is 1[%] is expressed by the following formula (1).

[0136] Px=(X 100 -X0) / 100···(1)

[0137] The relationship between the lateral spread Sx and the position x0 of the first slider S1 on the display area DA on the XY plane is expressed by the following equations (2) and (3) using the above equation (1).

[0138] Sx=(x0-X0) / Px···(2)

[0139] x0=Sx×Px+X0···(3)

[0140] Furthermore, on the rough adjustment mode screen 400 of the control device 200 according to the first embodiment, the longitudinal divergence Sy of the lighting device 1 can be set based on the amount of movement of the position y of the intersection of the Y axis on the XY plane and the outline of the light distribution shape object OBJ.

[0141] In the present disclosure, the position y of the intersection of the Y axis and the outline of the light distribution shape object OBJ is set as the center point of the second slider S2. In other words, the position y0 of the second slider S2 on the display area DA overlaps with the position y of the intersection of the Y axis and the outline of the light distribution shape object OBJ. Therefore, by touching the second slider S2 and moving it in the Y axis direction, the longitudinal diffusion Sy of the lighting device 1 can be set. Figure 16 “Sy” displayed near the second slider S2 in FIG. 1 represents the longitudinal diffusion degree of the lighting device 1 (eg, “50” [%]).

[0142] When 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 defined as Y 100 When the intersection of the Y axis and the contour line of the light distribution shape object OBJ when the longitudinal diffusion Sy is 0[%] is set to Y0, the reference movement amount Py in the Y direction on the XY plane when the longitudinal diffusion change ΔSy of the lighting device 1 is 1[%] is expressed by the following formula (4).

[0143] Py=(Y 100 -Y0) / 100···(4)

[0144] The relationship between the longitudinal spread Sy and the position y0 of the second slider S2 on the display area DA on the XY plane is expressed by the following equations (5) and (6) using the above equation (4).

[0145] Sy=(y0-Y0) / Py···(5)

[0146] y0=Sy×Py+Y0···(6)

[0147] In addition, while the above description describes a method for displaying a circular light distribution shape object OBJ when both the lateral diffuseness Sx and the longitudinal diffuseness Sy are set to 0%, the present invention is not limited to this. For example, a method may also be employed in which the origin O(0, 0) of the XY plane on the coarse adjustment mode screen 400 is set to the position corresponding to the case when both the lateral diffuseness Sx and the longitudinal diffuseness Sy are set to 0%.

[0148] When the control device 200 detects a long press of the first slider S1 or the second slider S2 on the coarse adjustment mode screen 400 , it shifts from the coarse adjustment mode (first adjustment mode) to the fine adjustment mode (second adjustment mode).

[0149] In the present disclosure, the "long press state of the first slider S1" indicates a state in which the movement amount of the first slider S1 on the coarse adjustment mode screen 400 (in other words, the movement amount of the touch detection position in the X direction) Δx is less than the movement amount threshold Δxth corresponding to the lateral diffusion change ΔSx = 1 [%] (first adjustment interval) for a time T1 that has passed a prescribed long press detection time (first time threshold) T1th (for example, 2 [sec]).

[0150] In addition, in the present disclosure, the "long press state of the second slider S2" indicates a state in which the movement amount of the second slider S2 on the coarse adjustment mode screen 400 (in other words, the movement amount of the touch detection position in the Y direction) Δy is less than Δyth of the longitudinal diffusion change ΔSy=1[%] (first adjustment interval) and the time T1 has passed the prescribed long press detection time (first time threshold) T1th (for example, 2[sec]).

[0151] Figure 17A as well as Figure 17B This is a conceptual diagram showing a first example of the display format of the fine adjustment mode screen of the control device according to the first embodiment. Figure 18A as well as Figure 18B This is a conceptual diagram showing a second example of the display format of the fine adjustment mode screen of the control device according to the first embodiment. Figure 19A This is a first diagram illustrating the relationship between the position on the fine adjustment mode screen and the light diffusion degree of the control device according to the first embodiment. Figure 19B This is a second diagram illustrating the relationship between the position on the fine adjustment mode screen and the light diffusion degree of the control device according to the first embodiment.

[0152] When the control device 200 detects the long press state of the first sliding member S1, it switches from the coarse adjustment mode to the fine adjustment mode and displays Figure 17A or Figure 18A The fine adjustment mode screen 400A is shown. In the fine adjustment mode screen 400A, a fine adjustment mode icon TW is displayed on the coarse adjustment mode screen 400. The fine adjustment mode icon TW is an image indicating that the current adjustment mode is the fine adjustment mode.

[0153] exist Figure 17A In FIG. 1 , a form is exemplified in which the lateral diffusion Sx (eg, “50.0” [%]) of the lighting device 1 is displayed near the first slider S1. Figure 18A In the embodiment, a scale display area SC1 including the lateral diffusion Sx of the lighting device 1 (e.g., "50.0" [%]) is displayed at an arbitrary position on the display area DA. The form of displaying the lateral diffusion Sx of the lighting device 1 in the fine adjustment mode of the lateral diffusion Sx may be Figure 17A The form of the first example shown can also be Figure 18A The form of the second example is shown.

[0154] exist Figure 17B In FIG. 1 , a form is exemplified in which the longitudinal diffusion Sy (eg, “50.0” [%]) of the lighting device 1 is displayed near the second slide member S2. Figure 18B In the embodiment, a scale display area SC2 including the longitudinal diffusion Sy (e.g., "50.0" [%]) of the lighting device 1 is displayed at an arbitrary position on the display area DA. The form of displaying the longitudinal diffusion Sy of the lighting device 1 in the fine adjustment mode of the longitudinal diffusion Sy may be: Figure 17B The form of the first example shown can also be Figure 18B The form of the second example is shown.

[0155] In fine adjustment mode, the adjustment step size differs from that in coarse adjustment mode. Specifically, if the adjustment step size (first adjustment interval) in coarse adjustment mode, i.e., the adjustment step sizes ΔSxmin and ΔSymin (i.e., the minimum value of the lateral diffusivity change ΔSx and the minimum value of the longitudinal diffusivity change ΔSy) in coarse adjustment mode, is 1%, the adjustment step size (second adjustment interval) in fine adjustment mode, i.e., the minimum value ΔSxTWmin of the lateral diffusivity change ΔSxTW and the minimum value ΔSyTWmin of the longitudinal diffusivity change ΔSyTW in fine adjustment mode, is set to, for example, 0.1%. In this case, the amount of touch detection position movement equivalent to 1% in coarse adjustment mode is equivalent to 0.1% in fine adjustment mode.

[0156] Therefore, if Figure 19A As shown, for example, when the lateral spread Sx is set to 52.0% in fine-adjustment mode, the position x of the intersection of the X-axis and the outline of the light distribution shape object OBJ, i.e., position x0 on the display area DA of the first slider S1, becomes different from the touch detection position x' in the X direction (x' ≠ x0). More specifically, when the lateral spread Sx is set from 50.0% (shown by the dashed line) to 52.0% (shown by the solid line) in fine-adjustment mode, the apparent movement of the touch detection position x' in the X direction corresponds to 20% (10 times the actual lateral spread change ΔSx = 2.0%).

[0157] In addition, if Figure 19BAs shown, for example, when the vertical diffusion Sy is set to 52.0% in fine-adjustment mode, the position y of the intersection of the Y-axis and the outline of the light distribution shape object OBJ, i.e., position y0 on the display area DA of the second slider S2, becomes different from the touch detection position y' in the Y direction (y' ≠ y0). More specifically, when the vertical diffusion Sy is set from 50.0% (shown by the dashed line) to 52.0% (shown by the solid line) in fine-adjustment mode, the apparent movement of the touch detection position y' in the Y direction corresponds to 20% (10 times the actual vertical diffusion change ΔSy = 2.0%).

[0158] In addition, the adjustment steps (first adjustment intervals) ΔSxmin and ΔSymin in the coarse adjustment mode (first adjustment mode) are not limited to 1%. Furthermore, the adjustment steps (second adjustment intervals) ΔSxTWmin and ΔSyTWmin in the fine adjustment mode (second adjustment mode) are not limited to 0.1%. The adjustment steps (second adjustment intervals) in the fine adjustment mode (second adjustment mode) can be adjusted to a smaller value (range) than the adjustment steps (first adjustment intervals) in the coarse adjustment mode (first adjustment mode) and are not limited to specific values (ranges) of the adjustment steps (first adjustment intervals) in the coarse adjustment mode and the adjustment steps (second adjustment intervals) in the fine adjustment mode.

[0159] 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.

[0160] The 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 20 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. Figure 21 This is a conceptual diagram showing an example of a storage area in the control device 200 of the lighting device 1 according to the first embodiment.

[0161] When the lighting control application is started on the control device 200, the display area DA is displayed. Figure 15A 、 Figure 15B 、 Figure 15C 、 Figure 15D The rough adjustment mode screen of the lighting control application is shown (step S001).

[0162] 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.

[0163] The transceiver circuit 225 of the control device 200 performs pairing processing (step S002) with the lighting device 1 that is 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).

[0164] 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. In addition, 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.

[0165] 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.

[0166] When the second setting information is received from the lighting device 1 (step S004: yes), the transceiver circuit 225 uses the Dx direction light diffusion S2x in the second setting information of the lighting device 1 as the current display value of the lateral diffusion Sx, and uses the Dy direction light diffusion S2y as the current display value of the longitudinal diffusion Sy, and saves them in Figure 21 into the storage area of the storage circuit 223 shown (step S005).

[0167] Furthermore, the initial value Sx_ini (e.g., 50%) of the lateral diffusion Sx and the initial value Sy_ini (e.g., 50%) of the longitudinal diffusion Sy are stored in the storage area of the storage circuit 223 of the control device 200. For example, when the lighting device 1 is first activated, or when the lighting device 1 activated in the pairing space is registered as a control target device, the initial value Sx_ini (e.g., 50%) of the lateral diffusion Sx may be replaced with the initial value Sy_ini (e.g., 50%) of the longitudinal diffusion Sy. Figure 21 The lateral diffusivity Sx is set to the current display value of Sx, and the initial value of the longitudinal diffusivity Sy is set to (for example, Figure 21In this case, the transceiver circuit 111 of the lighting device 1 receives the first setting information (S1x, S1y) received from the control device 200 as the second setting information (S2x, S2y) and stores it in the storage circuit 113. Furthermore, the electrode drive circuit 112 of the lighting device 1 supplies a drive voltage corresponding to the second setting information to the drive electrodes 10 and 13 of the liquid crystal cells 2 of the optical element 100.

[0168] The control device 200 calculates the current value (display value) x0 of the position of the first slider S1 based on the lateral diffusion Sx stored in the storage area of the storage circuit 223 using the above formula (3), and calculates the current value (display value) y0 of the position of the second slider S2 based on the longitudinal diffusion Sy stored in the storage area of the storage circuit 223 using the above formula (6), and stores them in the storage area of the storage circuit 223 (step S006).

[0169] When the processing up to step S006 is completed, the screen is switched to the standby state in the rough adjustment mode (step S007), and then switched to the Figure 22 The lighting control process shown (step S100). Figure 22 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.

[0170] exist Figure 22 In the standby state on the rough adjustment mode screen shown (step S101 ), the control device 200 executes touch detection processing for the first slider S1 and the second slider S2 (steps S102 and S103 ).

[0171] Specifically, for example, if the control device 200 does not detect a touch on the first slider S1 (step S102: No), it performs touch detection on the second slider S2 (step S103). However, the present invention is not limited to this, and the control device 200 may also perform touch detection on the first slider S1 if it does not detect a touch on the second slider S2.

[0172] If neither the first slider S1 nor the second slider S2 is touched (step S102: No, step S103: No), the system returns to the standby state in the coarse adjustment mode screen of step S101, and the processes of steps S101 to S103 are repeatedly executed. The execution interval of the processes of steps S101 to S103 is set to 10 [ms], for example.

[0173] When a touch on the first slider S1 is detected (step S102; YES), the control device 200 detects a first detection value x'0 of the touch detection position in the X direction at this time (step S110) and resets the count value T1 of the first timer (T1=0, step S111).

[0174] Next, the control device 200 detects a second detection value x′1 of the touch detection position in the X direction (step S112 ), and calculates a movement amount (first movement amount) Δx (=x′1−x′0) of the touch detection position in the X direction (step S113 ).

[0175] The control device 200 determines whether the magnitude |Δx| of the movement amount (first movement amount) Δx of the touch detection position in the X direction is greater than the magnitude |Δxth| of a predetermined movement amount threshold Δxth (step S114). Here, the magnitude |Δxth| of the movement amount threshold Δxth of the touch detection position in the X direction is, for example, a value corresponding to the adjustment step size (first adjustment interval) ΔSxmin in the X direction (i.e., the minimum value of the lateral diffusivity change ΔSx) in the coarse adjustment mode. The magnitude |Δxth| of the movement amount threshold Δxth of the touch detection position in the X direction is not limited to this and may be a value smaller than the value corresponding to the adjustment step size (first adjustment interval) ΔSxmin in the X direction (i.e., the minimum value of the lateral diffusivity change ΔSx) in the coarse adjustment mode.

[0176] If the magnitude of the movement amount (first movement amount) Δx of the touch detection position in the X direction |Δx| is greater than the magnitude of the predetermined movement amount threshold value Δxth |Δxth| (step S114; Yes), the process proceeds to Figure 23 The coarse adjustment mode in the X direction is shown (step S200). Figure 23 This is a flowchart showing an example of processing in the rough adjustment mode in the X direction in the control device 200 of the lighting device 1 according to the first embodiment.

[0177] When transferred to Figure 23 In the coarse adjustment mode in the X direction shown, the control device 200 uses the following formula (7) to update the lateral spread Sx (step S203) and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0178] Sx=Sx+Px×Δx···(7)

[0179] Furthermore, the control device 200 updates the position x0 of the first slider S1 corresponding to the lateral spread Sx using the following equation (8) (step S204), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0180] x0=x0+Δx···(8)

[0181] The display control circuit 231 of the control device 200 reflects the updated lateral spread Sx in step S203 and the updated position x0 of the first slider S1 in step S204 in the display control on the coarse adjustment mode screen 400 (step S205). The lateral spread Sx calculated in step S203 is then used as first setting information (S1x) (S1x=Sx) and transmitted to the lighting device 1 (step S206). This allows the lateral spread Sx to be adjusted in the coarse adjustment mode using the adjustment step size (first adjustment interval) ΔSxmin in the X direction (i.e., the minimum value of the lateral spread change ΔSx). The control device 200 then updates the second detection value x'1 of the touch detection position in the X direction to the first detection value x'0 (step S207).

[0182] return Figure 22 The control device 200 determines whether the touch on the first slider S1 continues (step S115). If the touch on the first slider S1 does not continue (step S115: No), that is, if the user's finger has left the first slider S1 or is located outside the first adjustment area TA1, the control device 200 returns to the standby state on the coarse adjustment mode screen (step S101). If the touch on the first slider S1 continues (step S115: Yes), the control device 200 executes the processes from step S112 onward.

[0183] If the magnitude |Δx| of the movement amount (first movement amount) Δx of the touch detection position in the X direction is less than the magnitude |Δxth| of the predetermined movement amount threshold Δxth (step S114; No), the control device 200 then determines whether the count value T1 of the first timer is greater than or equal to the predetermined long press detection time T1th (e.g., 2 [sec]) (step S116). If the count value T1 of the first timer is less than the predetermined long press detection time T1th (T1 < T1th, step S116; No), the process returns to step S112. For example, when 10 [ms] is set as 1 count, the long press detection time (first time threshold) T1th is set to 200 counts (T1th = 200). Furthermore, the long press detection time (first time threshold) T1th is not limited to 2 [sec] (= 200).

[0184] When the count value T1 of the first timer becomes longer than the predetermined long press detection time T1th (T1 ≥ T1th, step S116; yes), specifically, when the count value T1 of the first timer becomes longer than 200 (T1 ≥ 200), the control device 200 shifts from the coarse adjustment mode screen 400 to the fine adjustment mode screen 400A (step S117), and then shifts to the fine adjustment mode screen 400A. Figure 24 The fine adjustment mode in the X direction is shown in FIG. 3 (step S300). Specifically, as shown in FIG. Figure 17A or Figure 18A As shown, a fine adjustment mode icon TW indicating that the current adjustment mode is the fine adjustment mode is displayed. Figure 24 This is a flowchart showing an example of processing in the fine adjustment mode in the X direction in the control device 200 of the lighting device 1 according to the first embodiment.

[0185] When transferred to Figure 24 In the fine adjustment mode in the X direction shown in FIG. 1 , the control device 200 detects the second detection value x′1 of the touch detection position in the X direction (step S301), calculates the movement amount (first movement amount) Δx (= x′1 − x′0) of the touch detection position in the X direction (step S302), and updates the lateral spread Sx using the following formula (9) (step S303), and stores it in the storage area of the storage circuit 223 (see FIG. 1 ). Figure 21 ).

[0186] Sx=Sx+Px×Δx×(1 / 10)···(9)

[0187] Furthermore, the control device 200 updates the position x0 of the first slider S1 corresponding to the lateral spread Sx using the following formula (10) (step S304), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0188] x0=x0+Δx×(1 / 10)···(10)

[0189] As described above, the coefficient "1 / 10" in equations (9) and (10) is a correction coefficient for the difference in the adjustment step size in fine adjustment mode compared to coarse adjustment mode. Specifically, when the adjustment step size (first adjustment interval) in coarse adjustment mode, i.e., the adjustment step size (first adjustment interval) ΔSxmin in the X direction in coarse adjustment mode (i.e., the minimum value of the lateral diffusion change ΔSx), is 1%, the adjustment step size (second adjustment interval) in fine adjustment mode, i.e., the adjustment step size (second adjustment interval) in the X direction in fine adjustment mode, ΔSxTWmin (i.e., the minimum value of the lateral diffusion change ΔSxTW), is set to, for example, 0.1%. This ratio of the adjustment step size in coarse adjustment mode to the adjustment step size in fine adjustment mode is applied as the correction coefficient "1 / 10" in equations (9) and (10).

[0190] The display control circuit 231 of the control device 200 reflects the updated lateral spread Sx in step S303 and the updated position x0 of the first slider S1 in step S304 in the display control on the fine-adjustment mode screen 400A (step S305). The lateral spread Sx calculated in step S303 is then used as first setting information (S1x) (S1x = Sx) and transmitted to the lighting device 1 (step S306). This allows the lateral spread Sx to be adjusted in the fine-adjustment mode using the adjustment step size (second adjustment interval) ΔSxTWmin in the X direction (i.e., the minimum value of the lateral spread change ΔSxTW). The control device 200 then updates the second detection value x'1 of the touch detection position in the X direction to the first detection value x'0 (step S307).

[0191] Furthermore, in the present disclosure, in the coarse adjustment mode (first adjustment mode), the width of the light distribution shape object OBJ in the X-axis direction is adjusted following the movement of the first slider S1 in the X-axis direction. In contrast, in the fine adjustment mode (second adjustment mode) according to the first embodiment, the width of the light distribution shape object OBJ in the X-axis direction is adjusted according to the movement amount (first movement amount) of the touch detection position in the X-axis direction within the first adjustment area TA. Therefore, in Figure 24 In the X-direction fine adjustment mode shown, Figure 19A As shown, the position x of the intersection of the X axis and the outline of the light distribution shape object OBJ, that is, the position x0 on the display area DA of the first slider S1, and the touch detection position x' in the X direction are different positions (x'≠x0). Figure 19AAs shown by the two-dot chain line, in fine adjustment mode (second adjustment mode), the display position of the first slider S1 can also track the touch detection position x' in the X direction. In this case, the first slider S1 can also move in sync with the movement of the user's finger, moving away from the outline of the light distribution shape object OBJ. In this case, the portion of the outline that intersects the X-axis naturally corresponds to the aforementioned position x0.

[0192] return Figure 22 , the control device 200 determines whether the touch in the first adjustment area TA1 continues (step S118). If the touch in the first adjustment area TA1 does not continue (step S118; No), that is, if the user's finger is removed from the screen or the user's finger is at a position away from the first adjustment area TA1, the control device 200 switches from the fine adjustment mode screen 400A to the coarse adjustment mode screen 400 (step S119) and returns to the standby state in the coarse adjustment mode screen (step S101). If the touch on the first slider S1 continues (step S118; Yes), the control device 200 returns to Figure 22 Step S300 is repeated Figure 24 The fine adjustment mode in the X direction is shown.

[0193] When a touch on the second slider S2 is detected (step S103; YES), the control device 200 detects a first detection value y'0 of the touch detection position in the Y direction at this time (step S120), and resets the count value T1 of the first timer (T1=0, step S121).

[0194] Next, the control device 200 detects a second detection value y′1 of the touch detection position in the Y direction (step S122 ), and calculates a movement amount (second movement amount) Δy (= y′1 − y′0 ) of the touch detection position in the Y direction (step S123 ).

[0195] The control device 200 determines whether the magnitude |Δy| of the movement amount (second movement amount) Δy of the touch detection position in the Y direction is greater than the magnitude |Δyth| of a predetermined movement amount threshold Δyth (step S124). Here, the magnitude |Δyth| of the movement amount threshold Δyth of the touch detection position in the Y direction is, for example, a value corresponding to the Y-direction adjustment step size (first adjustment interval) ΔSymin (i.e., the minimum value of the longitudinal diffusivity change ΔSy) in the coarse adjustment mode. The magnitude |Δyth| of the movement amount threshold Δyth of the touch detection position in the Y direction is not limited to this and may be a value smaller than the value corresponding to the Y-direction adjustment step size (first adjustment interval) ΔSymin (i.e., the minimum value of the longitudinal diffusivity change ΔSy) in the coarse adjustment mode.

[0196] If the magnitude of the movement amount (second movement amount) Δy of the touch detection position in the Y direction |Δy| is greater than the magnitude of the predetermined movement amount threshold value Δyth |Δyth| (step S124; yes), the process proceeds to step S124. Figure 25 The coarse adjustment mode in the Y direction is shown (step S400). Figure 25 This is a flowchart showing an example of processing in the rough adjustment mode in the Y direction in the control device 200 of the lighting device 1 according to the first embodiment.

[0197] When transferred to Figure 25 In the coarse adjustment mode in the Y direction shown, the control device 200 uses the following formula (11) to update the longitudinal diffusion Sy (step S403) and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0198] Sy=Sy+Py×Δy···(11)

[0199] Furthermore, the control device 200 updates the position y0 of the second slider S2 corresponding to the longitudinal spread Sy using the following equation (12) (step S404), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0200] y0=y0+Δy···(12)

[0201] The display control circuit 231 of the control device 200 reflects the updated vertical spread Sy in step S403 and the updated position y0 of the second slider S2 in step S404 in the display control on the coarse adjustment mode screen 400 (step S405). The vertical spread Sy calculated in step S403 is then used as first setting information (S1y) (S1y = Sy) and transmitted to the lighting device 1 (step S406). This allows the vertical spread Sy to be adjusted in the coarse adjustment mode using the adjustment step size (first adjustment interval) ΔSymin in the Y direction (i.e., the minimum value of the vertical spread change ΔSy). The control device 200 then updates the second detection value y'1 of the touch detection position in the Y direction to the first detection value y'0 (step S407).

[0202] Return to Figure 22The control device 200 determines whether the touch on the second slider S2 continues (step S125). If the touch on the second slider S2 does not continue (step S125: No), that is, if the user's finger has left the second slider S2 or is located outside the second adjustment area TA2, the control device 200 returns to the standby state on the coarse adjustment mode screen (step S101). If the touch on the second slider S2 continues (step S125: Yes), the control device 200 executes the processing from step S122 onward.

[0203] If the magnitude of the movement amount (second movement amount) Δy of the touch detection position in the Y direction (|Δy|) is less than the magnitude of the predetermined movement amount threshold value Δyth (|Δyth|) (step S124: No), the control device 200 then determines whether the count value T1 of the first timer is greater than or equal to the predetermined long press detection time T1th (e.g., 2 seconds) (step S126). If the count value T1 of the first timer is less than the predetermined long press detection time T1th (T1 < T1th, step S126: No), the process returns to step S122. It should be noted that the long press detection time (first time threshold value) T1th is not limited to 2 seconds.

[0204] When the count value T1 of the first timer becomes longer than the predetermined long press detection time T1th (T1 ≥ T1th, step S126; yes), the control device 200 shifts from the coarse adjustment mode screen 400 to the fine adjustment mode screen 400A (step S127), and then shifts to the fine adjustment mode screen 400A. Figure 26 The fine adjustment mode in the Y direction shown in FIG. 5 (step S500). Specifically, as shown in FIG. Figure 17B or Figure 18B As shown, a fine adjustment mode icon TW indicating that the current adjustment mode is the fine adjustment mode is displayed. Figure 26 This is a flowchart showing an example of processing in the fine adjustment mode in the Y direction in the control device 200 of the lighting device 1 according to the first embodiment.

[0205] When transferred to Figure 26 In the fine adjustment mode in the Y direction shown in FIG. 1 , the control device 200 detects the second detection value y′1 of the touch detection position in the Y direction (step S501), calculates the movement amount (second movement amount) Δy (= y′1 − y′0) of the touch detection position in the Y direction (step S502), and updates the longitudinal spread Sy using the following formula (13) (step S503), and stores it in the storage area of the storage circuit 223 (see FIG. 13 ). Figure 21 ).

[0206] Sy=Sy+Py×Δy×(1 / 10)···(13)

[0207] Furthermore, the control device 200 updates the position x0 of the second slider S2 corresponding to the longitudinal spread Sy using the following equation (14) (step S504), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0208] y0=y0+Δy×(1 / 10)···(14)

[0209] As described above, the coefficient "1 / 10" in equations (13) and (14) is a correction coefficient for the difference in the adjustment step size in fine adjustment mode compared to coarse adjustment mode. Specifically, when the adjustment step size (first adjustment interval) in coarse adjustment mode, i.e., the adjustment step size (first adjustment interval) ΔSymin in the Y direction in coarse adjustment mode (i.e., the minimum value of the longitudinal diffusion change ΔSy) is 1%, the adjustment step size (second adjustment interval) in fine adjustment mode, i.e., the adjustment step size (second adjustment interval) ΔSyTWmin in the Y direction in fine adjustment mode (i.e., the minimum value of the longitudinal diffusion change ΔSyTW) is set to, for example, 0.1%. This ratio of the adjustment step size in coarse adjustment mode to the adjustment step size in fine adjustment mode is applied as the correction coefficient "1 / 10" in equations (13) and (14).

[0210] The display control circuit 231 of the control device 200 reflects the updated vertical spread Sy in step S503 and the updated position Y0 of the second slider S2 in step S504 in the display control on the fine-adjustment mode screen 400A (step S505). The vertical spread Sy calculated in step S503 is then used as first setting information (S1y) (S1y = Sy) and transmitted to the lighting device 1 (step S506). This allows the vertical spread Sy to be adjusted in the fine-adjustment mode using the adjustment step size (second adjustment interval) ΔSyTWmin in the Y direction (i.e., the minimum value of the vertical spread change ΔSyTW). The control device 200 then updates the second detection value y'1 of the touch detection position in the Y direction to the first detection value y'0 (step S507).

[0211] Furthermore, in the present disclosure, in the coarse adjustment mode (first adjustment mode), the width of the light distribution shape object OBJ in the Y-axis direction is adjusted by following the movement of the second slider S2 in the Y-axis direction. In contrast, in the fine adjustment mode (second adjustment mode) involved in embodiment 1, the width of the light distribution shape object OBJ in the Y-axis direction is adjusted according to the movement amount (second movement amount) of the touch detection position in the Y-direction within the second adjustment area TA. Therefore, in Figure 26 In the Y-direction fine adjustment mode shown, Figure 19BAs shown, the position y of the intersection of the Y axis and the outline of the light distribution shape object OBJ, that is, the position y0 on the display area DA of the second slider S2, and the touch detection position y' in the Y direction are different positions (y'≠y0). Figure 19B As shown by the two-dot chain line, in fine adjustment mode (second adjustment mode), the display position of the second slider S2 can also track the touch detection position y' in the Y direction. In this case, the second slider S2 can also move in sync with the movement of the user's finger, moving away from the outline of the light distribution shape object OBJ. In this case, the portion of the outline that intersects the Y axis naturally corresponds to the aforementioned position y0.

[0212] return Figure 22 , the control device 200 determines whether the touch in the second adjustment area TA2 continues (step S128). If the touch in the second adjustment area TA2 does not continue (step S128; No), that is, if the user's finger leaves the screen or the user's finger is at a position away from the second adjustment area TA2, the control device 200 switches from the fine adjustment mode screen 400A to the coarse adjustment mode screen 400 (step S129) and returns to the standby state in the coarse adjustment mode screen (step S101). If the touch in the second adjustment area TA2 continues (step S128; Yes), the control device 200 returns to Figure 22 Step S500 is repeated Figure 26 Fine adjustment mode in the Y direction is shown.

[0213] In the control device 200 of the lighting device 1 involved in the above-mentioned embodiment 1, there are a coarse adjustment mode (first adjustment mode) for adjusting the set value (here, the diffusion degree of the lighting device 1) at a first adjustment interval and a fine adjustment mode (second adjustment mode) for adjusting the set value at a second adjustment interval narrower than the coarse adjustment mode. In the coarse adjustment mode, when a long press state of the first slider S1 or the second slider S2 is detected, the mode is transferred to the fine adjustment mode.

[0214] Specifically, when a touch of the first slider S1 is detected on the coarse adjustment mode screen 400 and the amount of movement in the X direction (first movement amount) Δx (|Δx|) of the touch detection position in the first adjustment area TA1 is maintained below the amount of movement threshold Δxth (|Δxth|) for a time T1 that becomes longer than the long press detection time (first time threshold) T1th (for example, 2 [sec]), the mode shifts to the fine adjustment mode in the X direction.

[0215] In addition, when the touch of the second slider S2 is detected in the coarse adjustment mode screen 400, and the time T1 for which the size of the movement amount (second movement amount) Δy in the Y direction of the touch detection position in the second adjustment area TA2 |Δy| is maintained below the size of the movement amount threshold Δyth |Δyth| becomes longer than the long press detection time (first time threshold) T1th (for example, 2 [sec]), the mode is transferred to the fine adjustment mode in the Y direction.

[0216] As described above, in the control device 200 of the lighting device 1 and the lighting system according to the first embodiment, when switching from the coarse adjustment mode to the fine adjustment mode, it is possible to seamlessly switch without any operation.

[0217] In addition, in the control device 200 of the lighting device 1 involved in the above-mentioned embodiment 1, when the touch on the first adjustment area TA1 or the second adjustment area TA2 is no longer continued in the fine adjustment mode (second adjustment mode), it is possible to seamlessly transfer from the fine adjustment mode to the coarse adjustment mode without any operation.

[0218] (Implementation Method 2)

[0219] As described in Embodiment 1, in the fine adjustment mode of Embodiment 1, the position of the first slider S1 on the display area DA is different from the touch detection position. Depending on the amount of movement of the touch detection position, there are cases where the first slider S1 deviates from the first adjustment area TA1 or the second adjustment area TA2, making it impossible to perform adjustment in fine adjustment mode. In other words, there are cases where the adjustment range in fine adjustment mode is limited by the first adjustment area TA1 or the second adjustment area TA2.

[0220] Hereinafter, a specific example of the processing in the control device 200 of the lighting device 1 according to the second embodiment will be described. Figure 27 This is a flowchart showing an example of the overall flow of lighting control processing in control device 200 of lighting device 1 according to Embodiment 2. Detailed descriptions of the same structures and processes as those in Embodiment 1, such as the configuration of lighting device 1 and control device 200, initial setting processing, and processing in coarse adjustment mode, will be omitted.

[0221] exist Figure 27 In the lighting control process in the control device 200 of the lighting device 1 according to the second embodiment shown, after the control device 200 switches from the coarse adjustment mode screen 400 to the fine adjustment mode screen 400A (step S117), the control device 200 switches to Figure 28 The automatic fine adjustment mode in the X direction is shown (step S600). Figure 28This is a flowchart showing an example of processing in the automatic fine adjustment mode in the X direction in the control device 200 of the lighting device 1 according to the second embodiment.

[0222] When transferred to Figure 28 In the automatic fine adjustment mode in the X direction shown, the control device 200 resets the count value T2 of the second timer (T2=0, step S601), and reads the movement amount (first movement amount) Δx in the X direction from the storage area of the storage circuit 223 (step S602).

[0223] The control device 200 determines whether the magnitude |Δx| of the movement amount (first movement amount) Δx of the touch detection position in the X direction is greater than the magnitude |Δxth| of a predetermined movement amount threshold Δxth (step S603 ).

[0224] If the magnitude |Δx| of the movement amount (first movement amount) Δx of the touch detection position in the X direction is less than the magnitude |Δxth| of the predetermined movement amount threshold Δxth (step S603: No), the control device 200 then determines whether the count value T2 of the second timer is greater than or equal to a predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) (step S604). 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). Furthermore, the set value change time (second time threshold) T2th is not limited to 0.5 [sec] (= 50).

[0225] If the second timer count value T2 is less than the predetermined set value change time T2th (T2 < T2th, step S604; No), the control device 200 detects the second detection value x'1 of the touch detection position in the X direction (step S605), calculates the amount of movement (first movement) Δx (= x'1 - x'0) of the touch detection position in the X direction (step S606), and returns to the process of step S603. More specifically, while the second timer count value T2 is less than the set value change time T2th and the amount of movement Δx of the touch detection position in the X direction, |Δx|, is less than the amount of movement threshold Δxth, |Δxth|, the process of steps S604, S605, S606, S603, and S604 is repeated. In this case, the second detection value x'1 is always the latest touch detection value. In other words, this process includes the case where the finger is completely still, meaning that the position of the tip of the finger is always monitored.

[0226] If the magnitude of the movement amount (first movement amount) Δx of the touch detection position in the X direction |Δx| is greater than the magnitude of the predetermined movement amount threshold value Δxth |Δxth| (step S603; yes), the process shifts to the same fine adjustment mode in the X direction as in embodiment 1. That is, the lateral spread Sx is updated using the above formula (9) (step S607) and stored in the storage area of the storage circuit 223 (see Figure 21 ).

[0227] Furthermore, the control device 200 updates the position x0 of the first slider S1 corresponding to the lateral spread Sx using the above formula (10) (step S614), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0228] The display control circuit 231 of the control device 200 reflects the updated lateral spread Sx in step S607 and the updated position x0 of the first slider S1 in step S614 in the display control on the fine-adjustment mode screen 400A (step S615). The lateral spread Sx calculated in step S607 is then used as first setting information (S1x) (S1x=Sx) and transmitted to the lighting device 1 (step S616). This allows the lateral spread Sx to be adjusted in the fine-adjustment mode using the adjustment step size (second adjustment interval) ΔSxTWmin in the X direction (i.e., the minimum value of the lateral spread change ΔSxTW). The control device 200 then updates the second detection value x'1 of the touch detection position in the X direction to the first detection value x'0 (step S617).

[0229] When the count value T2 of the second timer becomes greater than or equal to the predetermined set value change time T2th (T2 ≥ T2th, step S604; yes), specifically, when the count value T2 of the second timer becomes greater than or equal to 50 (T2 ≥ 50), the automatic fine adjustment mode in the X direction according to the second embodiment is continued.

[0230] The control device 200 reads the sign of the X-direction movement amount (first movement amount) Δx from the storage area of the storage circuit 223 (step S610) and determines the movement direction of the touch detection position in the X direction. Specifically, the control device 200 determines whether the sign of the X-direction movement amount (first movement amount) Δx is "+" (step S611).

[0231] Here, if the sign of the movement amount (first movement amount) Δx in the X direction is "+" (step S611; yes), it means that the movement direction of the touch detection position immediately before in the first adjustment area TA1 is the direction of increasing the lateral spread Sx. At this time, the control device 200 adds the adjustment step length (second adjustment interval) ΔSxTWmin in the X direction in the fine adjustment mode (i.e., the minimum value of the lateral spread change ΔSxTW) to the current value (display value) of the lateral spread Sx, updates the current value (display value) of the lateral spread Sx (step 612), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0232] On the other hand, if the sign of the movement amount (first movement amount) Δx in the X direction is "-" (step S611; No), it means that the movement direction of the touch detection position immediately before in the first adjustment area TA1 is the direction of reducing the lateral spread Sx. In this case, the control device 200 subtracts the adjustment step length (second adjustment interval) ΔSxTWmin in the X direction in the fine adjustment mode (i.e., the minimum value of the lateral spread change ΔSxTW) from the current value (displayed value) of the lateral spread Sx, updates the current value (displayed value) of the lateral spread Sx (step S613), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0233] The control device 200 updates the position x0 of the first slider S1 corresponding to the lateral spread Sx calculated in step S612 or step S613 (step S614), and stores it in the storage area of the storage circuit 223 (see Figure 21 In other words, a value corresponding to the adjustment step (second adjustment interval) ΔSxTWmin in the X direction in the fine adjustment mode is added or subtracted from the width in the X direction of the light distribution shape object OBJ.

[0234] The display control circuit 231 of the control device 200 reflects the updated lateral spread Sx in step S612 or step S613 and the updated position x0 of the first slider S1 in step S614 in the display control on the fine adjustment mode screen 400A (step S615). The lateral spread Sx calculated in step S612 or step S613 is then used as first setting information (S1x) (S1x=Sx) and transmitted to the lighting device 1 (step S616). This allows the lateral spread Sx to be adjusted in the fine adjustment mode using the adjustment step size (second adjustment interval) ΔSxTWmin in the X direction (i.e., the minimum value of the lateral spread change ΔSxTW). The control device 200 then updates the second detection value x'1 of the touch detection position in the X direction to the first detection value x'0 (step S617).

[0235] In addition, in the present disclosure, in the coarse adjustment mode (first adjustment mode), the width of the light distribution shape object OBJ in the X-axis direction is adjusted by following the movement of the first slider S1 in the X-direction. In contrast, in the automatic fine adjustment mode (second adjustment mode) involved in embodiment 2, every time the set value change time (second time threshold) T2th passes, the value corresponding to the adjustment step length (second adjustment interval) ΔSxTWmin in the X-direction is added or subtracted. Thus, the width of the light distribution shape object OBJ in the X-axis direction is automatically adjusted according to the movement direction of the touch detection position in the X-direction just before in the first adjustment area TA1. Therefore, in Figure 28 In the automatic fine adjustment mode in the X direction, the intersection x of the X axis and the outline of the light distribution shape object OBJ, i.e., the position x0 of the first slider S1 on the display area DA, has no correlation with the touch detection position in the first adjustment area TA1 (x'≠x0).

[0236] In addition, Figure 27 In the lighting control process in the control device 200 of the lighting device 1 according to the second embodiment shown, after the control device 200 switches from the coarse adjustment mode screen 400 to the fine adjustment mode screen 400A (step S127), the control device 200 switches to Figure 29 The automatic fine adjustment mode in the Y direction is shown (step S700). Figure 29 This is a flowchart showing an example of processing in the automatic fine adjustment mode in the Y direction in the control device 200 of the lighting device 1 according to the second embodiment.

[0237] When transferred to Figure 29In the automatic fine adjustment mode in the Y direction shown, the control device 200 resets the count value T2 of the second timer (T2=0, step S701) and reads the movement amount (second movement amount) Δy in the Y direction from the storage area of the storage circuit 223 (step S702).

[0238] The control device 200 determines whether the magnitude |Δy| of the movement amount (second movement amount) Δy of the touch detection position in the Y direction is greater than the magnitude |Δyth| of a predetermined movement amount threshold Δyth (step S703 ).

[0239] If the magnitude |Δy| of the movement amount (second movement amount) Δy of the touch detection position in the Y direction is less than the magnitude |Δyth| of the predetermined movement amount threshold Δyth (step S703: No), the control device 200 then determines whether the count value T2 of the second timer is greater than or equal to the predetermined set value change time (second time threshold) T2th (e.g., 0.5 [sec]) (step S704). 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). Furthermore, the set value change time (second time threshold) T2th is not limited to 0.5 [sec] (= 50).

[0240] If the second timer count value T2 is less than the specified set value change time T2th (T2 < T2th, step S704; No), the control device 200 detects the second detection value y'1 of the touch detection position in the Y direction (step S705), calculates the amount of movement of the touch detection position in the Y direction (second movement amount) Δy (= y'1 - y'0) (step S706), and returns to the process of step S703. More specifically, while the second timer count value T2 is less than the set value change time T2th and the amount of movement Δy of the touch detection position in the Y direction, |Δy|, is less than the amount of movement threshold Δyth, |Δyth|, the process of steps S704, S705, S706, S703, and S704 is repeated. In this case, the second detection value y'1 is always the most recent touch detection value. In other words, this process includes the case where the finger is completely still, meaning that the position of the tip of the finger is always monitored.

[0241] If the magnitude |Δx| of the movement amount (second movement amount) Δy of the touch detection position in the Y direction is greater than the magnitude |Δyth| of the predetermined movement amount threshold Δyth (step S703; yes), the process shifts to the same Y-direction fine adjustment mode as in embodiment 1. That is, the longitudinal spread Sy is updated using the above formula (13) (step S707) and stored in the storage area of the storage circuit 223 (see Figure 21 ).

[0242] Furthermore, the control device 200 updates the position y0 of the second slider S2 corresponding to the longitudinal spread Sy using the above formula (14) (step S714), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0243] The display control circuit 231 of the control device 200 reflects the updated vertical spread Sy in step S707 and the updated position y0 of the second slider S2 in step S714 in the display control on the fine adjustment mode screen 400A (step S715). The vertical spread Sy calculated in step S707 is then used as first setting information (S1y) (S1y = Sy) and transmitted to the lighting device 1 (step S716). This allows the vertical spread Sy to be adjusted in the fine adjustment mode using the adjustment step size (second adjustment interval) ΔSyTWmin in the Y direction (i.e., the minimum value of the vertical spread change ΔSyTW). The control device 200 then updates the second detection value y'1 of the touch detection position in the Y direction to the first detection value y'0 (step S717).

[0244] When the count value T2 of the second timer becomes greater than the specified setting value change time T2th (T2≥T2th, step S704; yes), specifically, here, when the count value T2 of the second timer becomes greater than 50 (T2≥50), the automatic fine-tuning mode in the Y direction involved in implementation mode 2 is continued.

[0245] The control device 200 reads the sign of the amount of movement in the Y direction (second amount of movement) Δy from the storage area of the storage circuit 223 (step S710) and determines the direction of movement of the touch detection position in the Y direction. Specifically, the control device 200 determines whether the sign of the amount of movement in the Y direction (second amount of movement) Δy is "+" (step S711).

[0246] Here, if the sign of the movement amount (second movement amount) Δy in the Y direction is "+" (step S711; yes), it means that the movement direction of the touch detection position immediately before in the second adjustment area TA2 is the direction of expanding the longitudinal diffusion Sy. At this time, the control device 200 adds the adjustment step length (second adjustment interval) ΔSyTWmin in the Y direction in the fine adjustment mode (i.e., the minimum value of the longitudinal diffusion change ΔSyTW) to the current value (display value) of the longitudinal diffusion Sy, updates the current value (display value) of the transverse diffusion Sx (step S712), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0247] On the other hand, if the sign of the amount of movement in the Y direction (second amount of movement) Δy is "-" (step S711; No), it means that the movement direction of the touch detection position immediately before in the second adjustment area TA2 is the direction of reducing the longitudinal diffusion Sy. In this case, the control device 200 subtracts the adjustment step length (second adjustment interval) ΔSyTWmin in the Y direction in the fine adjustment mode (i.e., the minimum value of the longitudinal diffusion change ΔSyTW) from the current value (displayed value) of the longitudinal diffusion Sy, updates the current value (displayed value) of the longitudinal diffusion Sy (step S713), and stores it in the storage area of the storage circuit 223 (see Figure 21 ).

[0248] The control device 200 updates the position y0 of the second slider S2 corresponding to the longitudinal spread Sy calculated in step S712 or step S713 (step S714), and stores it in the storage area of the storage circuit 223 (see Figure 21 In other words, a value corresponding to the adjustment step length (second adjustment interval) ΔSyTWmin in the Y direction in the fine adjustment mode is added or subtracted from the width in the Y direction of the light distribution shape object OBJ.

[0249] The display control circuit 231 of the control device 200 reflects the updated vertical spread Sy in step S712 or step S713 and the updated position y0 of the second slider S2 in step S714 in the display control on the fine adjustment mode screen 400A (step S715). The vertical spread Sy calculated in step S712 or step S713 is then used as first setting information (S1y) (S1y = Sy) and transmitted to the lighting device 1 (step S716). This allows the vertical spread Sy to be adjusted in the fine adjustment mode using the Y-direction adjustment step size (second adjustment interval) ΔSyTWmin (i.e., the minimum value of the vertical spread change ΔSyTW). The control device 200 then updates the second detection value y'1 of the touch detection position in the Y direction to the first detection value y'0 (step S717).

[0250] In addition, in the present disclosure, in the coarse adjustment mode (first adjustment mode), the width of the light distribution shape object OBJ in the Y-axis direction is adjusted by following the movement of the second slider S2 in the Y-direction. In contrast, in the automatic fine adjustment mode (second adjustment mode) involved in embodiment 2, every time the set value change time (second time threshold) T2th passes, the value corresponding to the adjustment step length (second adjustment interval) ΔSyTWmin in the Y-direction is added or subtracted. Thus, the width of the light distribution shape object OBJ in the Y-axis direction is automatically adjusted according to the movement direction of the touch detection position in the Y-direction just before in the second adjustment area TA2. Therefore, in Figure 29 In the automatic fine adjustment mode in the Y direction, the intersection y of the Y axis and the outline of the light distribution shape object OBJ, i.e., the position y0 of the second slider S2 on the display area DA, has no correlation with the touch detection position in the second adjustment area TA2 (y′≠y0).

[0251] The control device 200 for the lighting device 1 according to the second embodiment includes a coarse adjustment mode (first adjustment mode) for adjusting a set value (here, the diffusion of the lighting device 1) at a first adjustment interval, and an automatic fine adjustment mode (second adjustment mode) for adjusting the set value at a second adjustment interval narrower than the coarse adjustment mode. In the coarse adjustment mode, upon detecting a long press of the first slider S1 or the second slider S2, the control device 200 transitions to the automatic fine adjustment mode. Thus, the control device 200 for the lighting device 1 according to the second embodiment allows for a seamless transition from the coarse adjustment mode to the automatic fine adjustment mode without requiring any further operation.

[0252] Furthermore, in the control device 200 of the lighting device 1 according to Embodiment 2, when the automatic fine adjustment mode is switched, if the time T2 until the amount of movement of the touch detection position in the adjustment area exceeds a predetermined movement threshold is longer than a predetermined set value change time (second time threshold) T2th, the control device 200 reads the immediately preceding movement direction of the touch detection position in the first adjustment area TA1 or the second adjustment area TA2 from the storage area of the storage circuit 223. Each time the predetermined set value change time (second time threshold) T2th elapses, the control device 200 automatically adjusts the set value (here, the divergence of the lighting device 1) at a second adjustment interval narrower than that in the coarse adjustment mode. Consequently, the adjustment range in the fine adjustment mode is not limited by the first adjustment area TA1 or the second adjustment area TA2, and the set value can be finely adjusted within a range of 0% to 100%.

[0253] Specifically, when the sign of the movement amount (first movement amount) of the immediately preceding touch detection position in the X direction within the first adjustment area TA1 indicates an expansion direction of the lateral spread Sx, the X-direction adjustment step length (second adjustment interval) ΔSxTWmin in the fine adjustment mode (i.e., the minimum value of the lateral spread variation ΔSxTW) is added to the current value (display value) of the lateral spread Sx every time a predetermined interval elapses. Furthermore, when the sign of the movement amount (first movement amount) of the immediately preceding touch detection position in the X direction within the first adjustment area TA1 indicates a reduction direction of the lateral spread Sx, the X-direction adjustment step length (second adjustment interval) ΔSxTWmin in the fine adjustment mode (i.e., the minimum value of the lateral spread variation ΔSxTW) is subtracted from the current value (display value) of the lateral spread Sx every time a predetermined set value change time (second time threshold) T2th elapses. Specifically, in the automatic fine-adjustment mode according to Embodiment 2, the automatic adjustment direction of the lateral spread Sx can be seamlessly changed from "+" to "-" or from "-" to "+" each time the sign of the movement amount (first movement amount) of the immediately preceding touch detection position in the X direction within the first adjustment area TA1 is updated. This allows the automatic adjustment direction of the lateral spread Sx to be seamlessly changed without requiring the user to significantly move the finger touching the first adjustment area TA1.

[0254] Furthermore, when the sign of the amount of movement (second amount of movement) in the Y direction of the immediately preceding touch detection position within the second adjustment area TA2 indicates an increase in the longitudinal spread Sy, the Y-direction adjustment step length (second adjustment interval) ΔSyTWmin in the fine adjustment mode (i.e., the minimum value of the longitudinal spread change ΔSyTW) is added to the current value (display value) of the longitudinal spread Sy every time a predetermined interval elapses. Furthermore, when the sign of the amount of movement (second amount of movement) in the Y direction of the immediately preceding touch detection position within the second adjustment area TA2 indicates a decrease in the longitudinal spread Sy, the Y-direction adjustment step length (second adjustment interval) ΔSyTWmin in the fine adjustment mode (i.e., the minimum value of the longitudinal spread change ΔSyTW) is subtracted from the current value (display value) of the longitudinal spread Sy every time a predetermined set value change time (second time threshold) T2th elapses. Specifically, in the automatic fine-adjustment mode according to the second embodiment, the automatic adjustment direction of the vertical spread Sy can be seamlessly changed from "+" to "-" or from "-" to "+" each time the sign representing the amount of movement (second amount of movement) of the immediately preceding touch detection position in the Y direction within the second adjustment area TA2 is updated. This allows the automatic adjustment direction of the vertical spread Sy to be seamlessly changed without requiring the user to significantly move the finger touching the second adjustment area TA2.

[0255] In addition, similar to embodiment 1, in the control device 200 of the lighting device 1 involved in the above-mentioned embodiment 2, when the touch on the first adjustment area TA1 or the second adjustment area TA2 is no longer continued in the automatic fine-adjustment mode (second adjustment mode), it is possible to seamlessly transfer from the automatic fine-adjustment mode to the coarse adjustment mode without any operation.

[0256] 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. Appropriate modifications made without departing from the scope of the present disclosure naturally also fall within the technical scope of the present disclosure.

[0257] Description of Reference Numerals

[0258] 1. Illuminating 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. Transceiver circuit; 112. Electrode drive circuit; 113. Storage circuit; 200. Control Control device; 211, detection circuit; 212, conversion processing circuit; 223, storage circuit; 225, transceiver circuit; 231, display control circuit; 300, communication unit (wireless communication unit); 400, coarse adjustment mode screen; 400A, fine adjustment mode screen; AA, effective area; DA, display area; FA, detection area; GA, peripheral area; OBJ, light distribution shape object; S1, first sliding member; S2, second sliding member; Sx, lateral diffusion; S1x, Dx direction light diffusion (lateral diffusion of the first setting information); S2x, Dx direction light diffusion (lateral diffusion of the second setting information); Sy, longitudinal diffusion; S1y, Dy direction light diffusion (longitudinal diffusion of the first setting information); S2y, Dy direction light diffusion (longitudinal diffusion of the second setting information); TA1, first adjustment area; TA2, second adjustment area.

Claims

1. A lighting device control device for controlling a plurality of lighting devices capable of setting a light distribution shape of light emitted from a light source in two directions: a first direction and a second direction intersecting the first direction, the lighting device control device comprising: A touch sensor having a detection area provided with a plurality of detection elements; a display panel having a display area overlapping with the detection area of the touch sensor in a plan view, and displaying an adjustment screen for the light distribution shape in the display area; as well as a storage circuit for storing a first detection value detected at a first time in an adjustment area provided on the adjustment screen and a second detection value detected at a second time later than the first time in the adjustment area; The control device of the lighting device comprises: a first adjustment mode for adjusting the light distribution shape at a first adjustment interval; as well as In the second adjustment mode, the light distribution shape is adjusted with a second adjustment interval narrower than the first adjustment interval. In the first adjustment mode, when the time for which the movement amount of the touch detection position calculated by subtracting the first detection value from the second detection value remains below a predetermined movement amount threshold becomes longer than a predetermined first time threshold, the mode shifts to the second adjustment mode.

2. The control device for a lighting device according to claim 1, wherein: The adjustment area is capable of adjusting at least one direction of the light distribution shape from a minimum value to a maximum value in the first adjustment mode. The scale of one step of the second adjustment interval in the adjustment area is the same as the scale of one step of the first adjustment interval in the adjustment area.

3. The control device for a lighting device according to claim 1 or 2, 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. The adjustment area includes: a first adjustment region capable of adjusting the light distribution shape in the X direction; and The second adjustment region of the light distribution shape can be adjusted in the Y direction.

4. The control device for a lighting device according to claim 3, wherein: The adjustment screen settings include: A light distribution shape object, with the origin of the XY plane as its center point; a first sliding member, disposed in the first adjustment area, with the intersection of the X axis of the XY plane and the outline of the light distribution shape object as its center point; as well as The second sliding member is disposed in the second adjustment area and has an intersection of the Y axis of the XY plane and the outline of the light distribution shape object as its center point. In the first adjustment mode, Following the movement of the first slider in the X direction detected by touch within the first adjustment area, the width of the light distribution shape object in the X direction is adjusted; following the movement of the second slider in the Y direction detected by touch within the second adjustment area, the width of the light distribution shape object in the Y direction is adjusted.

5. The control device for a lighting device according to claim 4, wherein: In the second adjustment mode, When the touch state in the first adjustment area continues, the width of the light distribution shape object in the X-axis direction is adjusted according to the magnitude of the first movement amount calculated by subtracting the first detection value in the first adjustment area from the second detection value in the first adjustment area. When the touch state in the second adjustment area continues, the width of the light distribution shape object in the Y-axis direction is adjusted according to a second movement amount calculated by subtracting the first detection value in the second adjustment area from the second detection value in the second adjustment area.

6. The control device for a lighting device according to claim 1, wherein: In the second adjustment mode, when the time until the magnitude of the movement exceeds the predetermined movement threshold becomes equal to or longer than a predetermined second time threshold, The setting value of the light distribution shape When the movement amount is a positive value, the second adjustment interval is added. When the movement amount is a negative value, the second adjustment interval is subtracted.

7. The control device for a lighting device according to claim 6, wherein: The adjustment area In the first adjustment mode, at least one direction of the light distribution shape can be adjusted from a minimum value to a maximum value. In the second adjustment mode, when the time until the magnitude of the movement exceeds the predetermined movement threshold is less than a predetermined second time threshold, The scale of one step of the second adjustment interval in the adjustment area is the same as the scale of one step of the first adjustment interval in the adjustment area.

8. The control device for a lighting device according to claim 1, wherein: In the second adjustment mode, when the time until the magnitude of the movement exceeds the predetermined movement threshold becomes equal to or longer than a predetermined second time threshold, The setting value of the light distribution shape When the movement amount is a positive value, the second adjustment interval is added every time the second time threshold is passed. When the movement amount is a negative value, the second adjustment interval is subtracted every time the second time threshold passes.

9. The control device for a lighting device according to claim 8, wherein: The adjustment area In the first adjustment mode, at least one direction of the light distribution shape can be adjusted from a minimum value to a maximum value. In the second adjustment mode, when the time until the magnitude of the movement exceeds the predetermined movement threshold is less than a predetermined second time threshold, The scale of one step of the second adjustment interval in the adjustment area is the same as the scale of one step of the first adjustment interval in the adjustment area.

10. The control device for a lighting device according to any one of claims 6 to 9, 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. The adjustment area includes: a first adjustment region capable of adjusting the light distribution shape in the X direction; and The second adjustment region of the light distribution shape can be adjusted in the Y direction.

11. The control device for a lighting device according to claim 10, wherein: The adjustment screen settings include: A light distribution shape object, with the origin of the XY plane as its center point; a first sliding member, disposed in the first adjustment area, with the intersection of the X axis of the XY plane and the outline of the light distribution shape object as its center point; as well as The second sliding member is disposed in the second adjustment area and has an intersection of the Y axis of the XY plane and the outline of the light distribution shape object as its center point. In the first adjustment mode, Following the movement of the first slider in the X direction detected by touch within the first adjustment area, the width of the light distribution shape object in the X direction is adjusted; following the movement of the second slider in the Y direction detected by touch within the second adjustment area, the width of the light distribution shape object in the Y direction is adjusted.

12. The control device for a lighting device according to claim 11, wherein: In the second adjustment mode, if the time until the magnitude of the first movement amount calculated by subtracting the first detection value in the first adjustment area from the second detection value in the first adjustment area exceeds the movement amount threshold is equal to or longer than the second time threshold and the touch state in the first adjustment area continues, The width of the light distribution shape object in the X-axis direction When the first movement amount is a positive value, a value corresponding to the second adjustment interval in the X direction is added every time the second time threshold passes. When the first movement amount is a negative value, a value corresponding to the second adjustment interval in the X direction is subtracted every time the second time threshold passes. If the time until the second movement amount calculated by subtracting the first detection value in the second adjustment area from the second detection value in the second adjustment area exceeds the movement amount threshold is equal to or longer than the second time threshold and the touch state in the second adjustment area continues, The width of the light distribution shape object in the Y-axis direction When the second movement amount is a positive value, a value corresponding to the second adjustment interval in the Y direction is added every time the second time threshold passes. When the second movement amount is a negative value, a value corresponding to the second adjustment interval in the Y direction is subtracted every time the second time threshold passes.

13. The control device for a lighting device according to claim 12, wherein: In the second adjustment mode, If the time until the magnitude of the first movement exceeds the movement threshold is less than the second time threshold and the touch state within the first adjustment area continues, Adjust the width of the light distribution shape object in the X-axis direction according to the first movement amount, If the time until the second movement amount exceeds the movement amount threshold is less than the second time threshold and the touch state within the second adjustment area continues, The width of the light distribution shape object in the Y-axis direction is adjusted according to the second movement amount.

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