Optical assembly of lighting device and lighting device

Abstract

The invention discloses an optical assembly of a lighting device and the lighting device, and belongs to the technical field of lighting facilities. The illuminating device comprises an optical assembly, the optical assembly comprises a light source module, a light reflecting structure and a transparent plate, the light source module is used for emitting light to the light reflecting structure, the light reflecting structure is arranged towards the transparent plate, and the light reflecting structure is configured to reflect the light to the light emitting side of the transparent plate; the light-emitting side of the transparent plate is used for reflecting the light to serve as emergent light of the lighting device so as to form a virtual light source on the backlight side of the transparent plate. By means of the optical assembly disclosed by the invention, the lighting device can simulate the lighting effect of the sun or the moon, so that the lighting device can bring rich lighting effects to users.

Description

Technical Field

[0001] This invention belongs to the field of lighting facility technology, and specifically relates to an optical component and a lighting device. Background Technology

[0002] In daily life and work, lighting devices are widely used in home lighting, commercial lighting, industrial lighting, landscape lighting, etc., providing convenience for people's lives and work.

[0003] As people's living standards improve, their demands for lighting fixtures also increase. Currently, some users not only want lighting fixtures to provide basic illumination, but also expect them to simulate the effects of sunlight or moonlight, thus bringing richer lighting effects. However, traditional lighting fixtures typically only have basic illumination functions and cannot meet these more advanced requirements.

[0004] Therefore, how to make lighting devices simulate the lighting effects of the sun or moon has become a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an optical component and a lighting device that can solve the problem in related technologies that lighting devices cannot simulate the lighting effects of the sun or moon.

[0006] In a first aspect, this application provides an optical component for a lighting device, including a light source module, a reflective structure, and a transparent plate. The light source module is used to emit light towards the reflective structure, which is disposed facing the transparent plate. The reflective structure is configured to reflect the light to the light-emitting side of the transparent plate, and the light-emitting side of the transparent plate is used to reflect the light as the emitted light of the lighting device to form a virtual light source on the backlight side of the transparent plate.

[0007] Optionally, the reflective structure includes a first reflective element, which is rotatably connected to a mounting component of the lighting device, and the first reflective element is configured to rotate relative to the mounting component to change the position of the virtual light source.

[0008] Optionally, the optical component further includes a driving mechanism, which is drivenly connected to the first reflective element and configured to change the rotation angle of the first reflective element relative to the mounting member according to the direction of sunlight at different times.

[0009] Optionally, the reflective structure further includes a second reflective element, the reflective structure being configured to reflect the light from the light source module onto its reflective surface to the first reflective element via the second reflective element, and to reflect the light onto the transparent plate via the reflective surface of the first reflective element.

[0010] Optionally, the distance from the virtual light source formed by the light source module through the optical components to the human eye is 2~20m.

[0011] Optionally, the light source module is used to emit a collimated beam.

[0012] Secondly, this application also provides a lighting device, which includes a surface light source and the optical components described above, wherein the surface light source is used to illuminate the backlight side of the transparent plate.

[0013] Optionally, the lighting device further includes a control device electrically connected to the surface light source. The control device is used to adjust the brightness of the LEDs at different positions on the surface light source and to control the on / off state of the LEDs at different positions through a regional control method.

[0014] Optionally, the lighting device further includes a line light source, a light guide plate, and a diffusion ring. The line light source is disposed facing the light guide plate, the light guide plate is disposed along the circumference of the transparent plate, and the diffusion ring is located on the light-emitting side of the transparent plate, and the diffusion ring is located on the side of the light guide plate facing the transparent plate.

[0015] Optionally, the light guide plate has an arc-shaped structure. When the light guide plate is in a flattened state, the two opposite sides of the light guide plate are symmetrically arranged along its own length direction, and both are inclined relative to the length direction of the light guide plate.

[0016] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: In the optical component provided by the technical solution of the present invention, a collimated beam of light is emitted by the light source module and irradiates the reflective structure. The light is reflected by the reflective structure to the light-emitting side of the transparent plate, forming a virtual image on the backlight side of the transparent plate as a virtual light source. This achieves the lighting effect of simulating sunlight or moonlight shining on a window, while also having a sense of depth. When the user observes the virtual image, the user can feel that there is a real sun or a real moon behind the transparent plate. At the same time, the rotation angle of the first reflective element in the reflective structure is adjusted according to different times of day to change the position of the virtual image, simulating the position and trajectory of the sun or moon at different times, thus forming a lighting scene illuminated by the sun or moon.

[0017] On the other hand, with the installation of sky simulation devices and window shadow devices, the simulated sunlight lighting effect can be integrated with the blue sky and white clouds and window shadow effect. When users look at the lighting device, it is as if they can see the light and shadow formed by sunlight shining on the window through the blue sky and white clouds, as well as the window shadow formed by sunlight passing through the window and on the window sill, which can present a more realistic and natural lighting scene. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the lighting device disclosed in an embodiment of the present invention from a first perspective; Figure 2 This is a schematic diagram of the lighting device disclosed in an embodiment of the present invention from a second perspective; Figure 3 This is a schematic diagram of the lighting device disclosed in an embodiment of the present invention from a third-person perspective; Figure 4 This is an exploded view of the lighting device disclosed in an embodiment of the present invention; Figure 5 This is a cross-sectional view of the lighting device disclosed in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged view of part A; Figure 7 This is a schematic diagram of the structure of the first circuit board disclosed in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the light guide plate disclosed in an embodiment of the present invention; Figure 9 This is one of the ray tracing diagrams of the lighting device disclosed in the embodiments of the present invention; Figure 10 This is the second ray tracing diagram of the lighting device disclosed in the embodiments of the present invention; Figure 11 This is the third ray tracing diagram of the lighting device disclosed in the embodiments of the present invention; Figure 12 This is the fourth ray tracing diagram of the lighting device disclosed in the embodiments of the present invention; Figure 13 This is one of the optical schematic diagrams of the optical components disclosed in the embodiments of the present invention; Figure 14 This is the second optical schematic diagram of the optical component disclosed in the embodiment of the present invention; Figure 15 This is the third optical schematic diagram of the optical component disclosed in the embodiment of the present invention; Figure 16 This is the fourth optical schematic diagram of the optical component disclosed in the embodiments of the present invention; Figure 17 This is the fifth optical schematic diagram of the optical components disclosed in the embodiments of the present invention; Figure 18 A distortion image of the virtual image observed by the user; Figure 19 This is one of the simulation diagrams of the lighting device disclosed in the embodiments of the present invention; Figure 20 This is the second simulation diagram of the lighting device disclosed in the embodiments of the present invention; Figure 21 This is the third simulation diagram of the lighting device disclosed in the embodiments of the present invention; Figure 22 This is the fourth simulation diagram of the lighting device disclosed in the embodiments of the present invention; Figure 23 This is the fifth simulation diagram of the lighting device disclosed in the embodiments of the present invention.

[0019] Explanation of reference numerals in the attached figures: 100 - Transparent panel, 110 - Light-emitting surface; 200 - Light source module, 210 - First ray; 300 - Reflective structure, 310 - First reflective element, 311 - Rotating shaft, 320 - Second reflective element; 400 - Installation components; 500-Lamp body, 510-First through-hole, 520-Limiting part, 530-Snap-fit ​​part, 540-Annular groove; 610 - Control device; 620 - Surface light source; 621 - Second ray; 630 - Line light source; 631 - Third ray; 710-Light guide plate, 712-Stop groove, 713-Second through-hole, 714-Card slot, 720-Light shielding ring, 730-Diffuser ring, 731-Third through-hole, 740-Diffuser plate; 800 - Installation structure; 910 - Eye, 920 - First virtual image, 930 - Second virtual image, 940 - Third virtual image, 950 - Fourth virtual image, 960 - Fifth virtual image. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0021] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the invention can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The optical components and lighting device of the lighting device provided in the embodiments of the present invention will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0023] Please refer to Figures 1 to 23 As shown in the illustration, this application provides an optical component for a lighting device, comprising: a light source module 200, a reflective structure 300, and a transparent plate 100. The light source module 200 emits light towards the reflective structure 300, which is disposed facing the transparent plate 100. The reflective structure 300 is configured to reflect light to the light-emitting side of the transparent plate 100, and the light-emitting side of the transparent plate 100 reflects the light as emitted light from the lighting device to form a virtual light source on the backlight side of the transparent plate 100.

[0024] In the optical component provided by the technical solution of the present invention, a collimated light beam emitted by the light source module 200 illuminates the reflective structure 300, and the light is reflected by the reflective structure 300 to the light-emitting side of the transparent plate 100, forming a virtual image on the backlight side of the transparent plate 100 as a virtual light source, realizing the lighting effect of sunlight or moonlight shining on a window, while having a sense of depth, so that when the user observes the virtual image, the user can feel that there is a real sun or a real moon behind the transparent plate 100. At the same time, the rotation angle of the first reflective element 310 in the reflective structure 300 is adjusted according to different times of day to change the position of the virtual light source, simulating the position and movement trajectory of the sun or moon at different times, forming a lighting scene illuminated by the sun or moon.

[0025] On the other hand, with the installation of sky simulation devices and window shadow devices, the simulated sunlight lighting effect can be integrated with the blue sky and white clouds and window shadow effect. When users look at the lighting device, it is as if they can see the light and shadow formed by sunlight shining on the window through the blue sky and white clouds, as well as the window shadow formed by sunlight passing through the window and on the window sill, which can present a more realistic and natural lighting scene.

[0026] It should be noted that when the light reflected by the reflective structure 300 is transmitted to the transparent plate 100, it will produce a specular reflection and be reflected by the transparent plate 100 to the light-emitting side of the transparent plate 100. When the user's line of sight is directed at the transparent plate 100, these reflected lights will enter the user's eyes 910, so that the user can observe that the interior of the lighting device presents a virtual image corresponding to the light source module 200. This virtual image is the virtual image mentioned above, which is also the virtual light source mentioned above.

[0027] Optionally, at least a portion of the light-emitting surface 110 of the transparent plate 100 is used to reflect light, and the portion of the light-emitting surface 110 used to reflect light meets, for example, the requirements of a preset roughness and a preset flatness, so that the portion of the light-emitting surface 110 used to reflect light is relatively smooth and relatively flat, thereby improving the clarity of the virtual light source.

[0028] In another embodiment, reference Figure 3 As shown, the reflective structure 300 includes a first reflective element 310, which is rotatably connected to the mounting member 400 of the lighting device. The first reflective element 310 is configured to rotate relative to the mounting member 400 to change the position of the virtual light source.

[0029] Specifically, refer to Figure 3 As shown, the reflective surface of the first reflective element 310 is positioned facing the light-emitting surface 110 of the transparent plate 100 mentioned above. When the first reflective element 310 rotates relative to the mounting member 400, the reflection position of the light on the light-emitting surface 110 changes, thereby changing the position of the virtual light source. When the first reflective element 310 is in the first position, the light is directed, for example, to the third position of the light-emitting surface 110. When the first reflective element 310 is in the second position, the light is directed, for example, to the fourth position of the light-emitting surface 110. The position where the light is directed to the light-emitting surface 110, that is, the reflection position of the light on the light-emitting surface 110, changes with the position of the first reflective element 310.

[0030] In this embodiment, the position of the virtual light source is variable, thereby enabling the lighting device to simulate the position and trajectory of the sun or moon at different times, thus providing a richer visual effect.

[0031] Understandably, reference Figures 13 to 17 As shown, the position of the virtual image corresponding to the light source module 200 observed by the user is directly related to the position of the light rays hitting the light-emitting surface 110. When the position of the light rays hitting the light-emitting surface 110 changes, the position of the virtual image corresponding to the light source module 200 observed by the user changes accordingly.

[0032] In other alternative embodiments, the first reflective element 310 may also be fixedly mounted on the mounting member 400.

[0033] In another embodiment, the optical assembly further includes a drive mechanism that is driven to the first reflective element 310. The drive mechanism is configured to change the rotation angle of the first reflective element 310 relative to the mounting member 400 according to the direction of sunlight at different times. With this configuration, the drive mechanism can automatically drive the first reflective element 310 to rotate, thereby saving manpower.

[0034] Optionally, the drive mechanism is, for example, an electric motor or electric motor. Further, refer to... Figure 10 As shown, the first reflective element 310 is provided with a rotating shaft 311, and the driving mechanism is connected to the rotating shaft 311 to drive the first reflective element 310 to rotate. When the light-emitting surface 110 is a plane, the axis of the rotating shaft 311 is parallel to the light-emitting surface 110, for example.

[0035] In other alternative embodiments, the optical components may not include a drive mechanism, in which case, for example, the user needs to manually rotate the first reflective element 310.

[0036] In a further embodiment, reference is made to... Figure 2 As shown, the reflective structure 300 also includes a second reflective element 320. The reflective structure 300 is configured to reflect the light irradiated by the light source module 200 onto its reflective surface to the first reflective element 310 through the second reflective element 320, and reflect the light onto the transparent plate 100 through the reflective surface of the first reflective element 310.

[0037] To distinguish the light emitted by other structures, the light emitted by the light source module 200 is defined, for example, as a first ray 210, and the transmission path of the first ray 210 is, for example, referenced to... Figure 9 and Figure 10 As shown.

[0038] For specific usage, please refer to... Figure 16As shown, the first light ray 210 emitted by the light source module 200 strikes the second reflector 320, which mirrors and forms a first virtual image 920 of the light source module 200. Then, the second reflector 320 reflects the first light ray 210 back to the first reflector 310, which mirrors the first virtual image 920 to form a second virtual image 930. Next, the first reflector 310 reflects the first light ray 210 back to the transparent plate 100, which mirrors the second virtual image 930 to form a third virtual image 940. The third virtual image 940 is the virtual image observed by the user's eye 910. Therefore, in this embodiment, the light source module 200 undergoes at least three mirroring processes to obtain the third virtual image 940. Since each mirroring increases the distance between the user's eye 910 and the virtual image observed by the user's eye 910, the scheme adopted in this embodiment provides a stronger sense of depth in the virtual image observed by the user, allowing the optical components to realistically simulate the lighting effects of the sun or moon. Furthermore, both the reflective surfaces of the first reflective element 310 and the second reflective element 320 can correct aberrations, thereby reducing the distortion of the third virtual image 940 and resulting in better sharpness of the third virtual image 940. For example, a distortion diagram of the third virtual image 940 can be found in the reference diagram. Figure 18 As shown.

[0039] It should be noted that the distance between the virtual image observed by the user and the user's eye 910 is related to the shape of the reflective surface of the first reflective element 310, the shape of the reflective surface of the second reflective element 320, the distance between the light source module 200 and the second reflective element 320, the distance between the first reflective element 310 and the second reflective element 320, the distance between the first reflective element 310 and the transparent plate 100, and the setting angle of the first reflective element 310 and the second reflective element 320. More specifically, when both the reflective surface of the first reflective element 310 and the reflective surface of the second reflective element 320 are curved surfaces, the reflective surface of the first reflective element 310 refers, for example, to the radius of curvature of the reflective surface of the first reflective element 310, the shape of the reflective surface of the second reflective element 320 refers, for example, to the radius of curvature of the reflective surface of the second reflective element 320, the setting angle of the first reflective element 310 refers, for example, to the angle between the reflective surface of the first reflective element 310 and the mounting member 400, and the setting angle of the second reflective element 320 refers, for example, to the angle between the reflective surface of the second reflective element 320 and the mounting member 400.

[0040] Optionally, the first reflective element 310 may be, for example, a first reflector, and the second reflective element 320 may be, for example, a second reflector.

[0041] In other alternative embodiments, the reflective structure 300 may include only the first reflective element 310. With this configuration, in practical use, refer to... Figure 13 and Figure 14 As shown, the first light ray 210 emitted by the light source module 200 hits the first reflective element 310, and the first reflective element 310 will reflect and form a fourth virtual image 950 of the light source module 200. Then, the first reflective element 310 reflects the first light ray 210 to the transparent plate 100. At this time, the transparent plate 100 reflects the fourth virtual image 950 to form a fifth virtual image 960. The fifth virtual image 960 is the virtual image observed by the user's eye 910.

[0042] In one optional embodiment, the reflective structure 300 includes, for example, at least three reflective elements, including, for example, the first reflective element 310 and the second reflective element 320 described above. Each reflective element is disposed on the mounting member 400, and the reflective surfaces of the other reflective elements, except for the first reflective element 310 and the second reflective element 320, reflect light sequentially to reflect the light reflected by the reflective surface of the second reflective element 320 to the reflective surface of the first reflective element 310.

[0043] In another embodiment, the distance from the virtual light source formed by the light source module 200 through optical components to the human eye is, for example, 2 to 20 meters, optionally, for example, 2 meters, 10 meters, or 20 meters. Within this distance range, the virtual light source has a stronger sense of depth, thus realistically simulating the lighting effect of the sun or moon. Of course, in other optional embodiments, the distance from the virtual light source to the human eye can also be less than 2 meters or greater than 20 meters.

[0044] In another embodiment, the light source module 200 is used to emit a collimated beam. The collimated beam maintains high parallelism and directional consistency during propagation, thus maintaining high light intensity and clarity over long distances. Therefore, using the collimated beam to form a virtual light source results in good brightness and clarity for the virtual light source. Furthermore, the collimated beam does not lose excessive energy due to diffusion during propagation, resulting in high energy utilization.

[0045] The size of the virtual light source is related to, for example, the diameter of the collimated beam emitted by the light source module 200, the shape of the reflective surface of the first reflective element 310, and the shape of the reflective surface of the second reflective element 320.

[0046] Optionally, the light source module 200 includes, for example, a third LED, a lens, and a second circuit board. The light-incident surface of the lens faces the third LED. The light emitted by the third LED is focused by the lens to form a collimated beam, and the divergence angle of the collimated beam is, for example, less than 15 degrees. More specifically, the third LED includes, for example, a light-emitting chip, which is packaged on the second circuit board, for example, using chip-on-board (COB) technology.

[0047] In other alternative embodiments, the light source module 200 can also be used to emit a non-collimated beam, that is, the beam can also have a large divergence angle.

[0048] This application embodiment also provides a lighting device, including a surface light source 620 and the optical components described above. The surface light source 620 is used to illuminate the backlight side of the transparent plate 100, and the backlight side and the light-emitting side are two opposite sides in the thickness direction of the transparent plate 100. The optical components described above can simulate the lighting effect of the sun or moon. The lighting device in this application embodiment includes the optical components described above, so it can also simulate the lighting effect of the sun or moon.

[0049] Alternatively, the lighting device may be one of the following: a ceiling light, a decorative light, a kitchen and bathroom light, or a blue sky light.

[0050] In another embodiment, reference Figures 1 to 4 As shown, the lighting device also includes a lamp body 500, which is configured as a cylindrical structure. The surface light source 620 and the transparent plate 100 are located in the inner cavity of the lamp body 500. The reflective structure 300 includes, for example, the first reflective element 310 and the second reflective element 320 mentioned above. The first reflective element 310 and the second reflective element 320 are arranged sequentially along a first direction, which is, for example, parallel to the axial direction of the lamp body 500. With this arrangement, the first reflective element 310 and the second reflective element 320 occupy less space overall, thereby helping to reduce the size of the lighting device.

[0051] In a further embodiment, reference is made to... Figure 2 As shown, the light source module 200 is located, for example, outside the lamp body 500. With this arrangement, the light source module 200 does not occupy the internal space of the lamp body 500. As a result, the lamp body 500 does not need to house the light source module 200, and its size can be designed to be relatively small, which also helps to reduce the size of the lighting device.

[0052] In a further embodiment, reference is made to... Figure 1 and Figure 4 As shown, the side wall of the lamp body 500 is provided with a first through opening 510, which connects the inner cavity of the lamp body 500 to the outside. The aforementioned mounting member 400 is a shell structure, and at least a portion of the mounting member 400 is disposed in the first through opening 510. The mounting member 400 is connected to the lamp body 500, and the side of the mounting member 400 facing the inner cavity of the lamp body 500 is open. The first reflector 310 and the second reflector 320 are both disposed in the inner cavity of the mounting member 400. With this arrangement, at least a portion of the mounting member 400 is hidden inside the lamp body 500, thereby making the overall lighting device more compact.

[0053] In another embodiment, the lighting device further includes a control device 610, which is electrically connected to the surface light source 620. The control device 610 is used to adjust the brightness of LEDs at different positions on the surface light source 620 and to control the on / off state of LEDs at different positions via a regional control method. Optionally, the control device 610 may be, for example, a first circuit board.

[0054] In practical use, the LEDs in different positions correspond to different areas of the transparent plate 100. By controlling the opening and closing of the LEDs in different positions, the bright and dark areas on the transparent plate 100 can be switched. At the same time, by controlling the brightness of the LEDs, the brightness of the bright area can be controlled. In this way, the lighting device can present more different lighting effects.

[0055] Furthermore, the surface light source 620 includes, for example, at least two different colors of LED beads. With this configuration, the color of the bright area can be controlled by controlling the activation of the LED beads of different colors, thereby enabling the lighting device to provide a richer visual effect.

[0056] It should be noted that the color of the bright area depends on the color of the corresponding LED bead, and when the bright area corresponds to at least two different colored LED beads, its color depends on the color formed after the light from each LED bead is mixed.

[0057] In one optional embodiment, the surface light source 620 includes, for example, four different colored LEDs. In actual use, by controlling the mixing of these four different colored LEDs, for example, most of the transparent plate 100 can be blue to simulate the lighting effect of a blue sky, or a portion of the transparent plate 100 can be blue and another portion white to simulate the lighting effect of a blue sky and white clouds. The surface light source 620 and the control device 610 work together to form, for example, the sky simulation device described above. Furthermore, when the light source module 200 is simultaneously turned on, the lighting device can provide the user with a lighting effect where a virtual sun or moon appears in the distance through a layer of blue sky or blue sky and white clouds.

[0058] Optionally, refer to Figure 6 As shown, the backlight side of the transparent plate 100 is provided with a diffuser plate 740, for example. The light emitted by the surface light source 620 is diffused by the diffuser plate 740 and then enters the transparent plate 100. The diffuser plate 740 can diffuse the light emitted by the surface light source 620, thereby making the light emitted by the surface light source 620 more uniform.

[0059] Furthermore, to easily distinguish the light emitted by the surface light source 620 from the light emitted by other structures, the light emitted by the surface light source 620 is defined as the second ray 621. The optical path diagram of the surface light source 620 is referenced. Figure 11 As shown.

[0060] In other alternative embodiments, the lighting device may also exclude the surface light source 620.

[0061] In another embodiment, the lighting device further includes a line light source 630, a light guide plate 710, and a diffusion ring 730. The line light source 630 is disposed toward the light guide plate 710 to emit light to the light guide plate 710. The light guide plate 710 is disposed circumferentially along the transparent plate 100. The diffusion ring 730 is located on the light-emitting side of the transparent plate 100 and is located on the side of the light guide plate 710 facing the transparent plate 100.

[0062] In practical use, the light emitted by the line light source 630 enters the light guide plate 710 and then exits through the diffusion ring 730, causing the part of the diffusion ring 730 opposite to the light guide plate 710 to light up. This lit part is mirrored by the transparent plate 100 to form a sixth virtual image. At this time, when the user looks up at the lighting device, the lit part of the diffusion ring 730 can be the window shadow formed on the window sill after the sunlight passes through the window. The sixth virtual image can simulate the light and shadow formed by the sunlight shining on the window, so the lighting device can provide the user with the lighting effect of sunlight shining into the room through the window.

[0063] Optionally, the linear light source 630 may include, for example, three different colored LEDs. The light emitted by the linear light source 630 is a mixture of the three different colored lights emitted by the three LEDs, thereby allowing the lighting device to provide different lighting effects to the user by controlling the mixing of the three different colored LEDs.

[0064] In one alternative embodiment, the linear light source 630 may further include four different colored LEDs. Compared to LEDs with three different colors, LEDs with four different colors have a better light mixing effect, thereby enabling the lighting device to provide better lighting effects for the user.

[0065] Of course, in other alternative embodiments, the line light source 630 may also include at least five different colored LEDs.

[0066] It should be noted that, in order to easily distinguish the light emitted by the line light source 630 from the light emitted by other structures, the light emitted by the line light source 630 is defined, for example, as the third ray 631. The optical path diagram of the line light source 630 is shown in the reference diagram. Figure 12 As shown.

[0067] In a further embodiment, the control device 610 includes, for example, a first circuit board, on which the surface light source 620 and the line light source 630 are both disposed and electrically connected. This arrangement, with the surface light source 620 and the line light source 630 on the same circuit board, simplifies wiring and reduces the number of components involved in the lighting device, thereby simplifying the structure of the lighting device.

[0068] Optionally, refer to Figure 7 As shown, the LEDs of the surface light source 620 and the line light source 630 are, for example, both disposed on the side of the first circuit board facing the inner cavity of the lamp body 500. The LEDs of the line light source 630 are, for example, spaced apart at the circumferential edge of the first circuit board, and referenced... Figure 7 As shown, the line light source 630 surrounds the surface light source 620, for example.

[0069] Optionally, the control device 610 can, for example, control the on / off state of LEDs at different positions of the linear light source 630, and adjust the brightness of LEDs at different positions of the linear light source 630, so that the control device 610 can control the light mixing effect of each LED in the linear light source 630. The linear light source 630 and the control device 610, for example, form the window shadow device described above.

[0070] In another embodiment, the light guide plate 710 is, for example, an arc-shaped structure. When the light guide plate 710 is in a flattened state, the two opposite sides of the light guide plate 710 are symmetrically arranged, and both are inclined relative to the length direction of the light guide plate 710.

[0071] For ease of description, when the light guide plate 710 is in a flattened state, its two opposite sides along its length are, for example, the first side and the second side of the light guide plate 710, and both the first side and the second side are, for example, planar. Specifically, when the light guide plate 710 is in a flattened state, the angle between the first side and the second side and the length direction of the light guide plate 710 is, for example, 45 degrees. For ease of description, the angle between the first side and the length direction of the light guide plate 710 is defined as the first angle, and the angle between the second side and the length direction of the light guide plate 710 is defined as the second angle.

[0072] In this embodiment, when the light guide plate 710 is lit, the two ends of the lit portion of the diffusion ring 730 and the two ends of the sixth virtual image will respectively form a first dividing line and a second dividing line. The first dividing line and the second dividing line can simulate the cutoff line formed by sunlight passing through the window, so that the lighting device can more vividly simulate the scene of sunlight passing through the window and shining into the room.

[0073] It should be noted that the degree of inclination of the cutoff line mainly depends on the size of the first and second included angles mentioned above. When the values ​​of the first and second included angles change, the shape of the cutoff line changes accordingly.

[0074] Optionally, when the light guide plate 710 is in a flattened state, the light guide plate 710 is, for example, a rectangular structure, and the rectangular structure is wound along the length direction of the rectangular structure to form the light guide plate 710.

[0075] In a further embodiment, the light guide plate 710 is provided with a second through-hole 713 corresponding to the position of the first through-hole 510. At least a portion of the aforementioned mounting member 400 is hidden in the second through-hole 713. With this arrangement, the mounting member 400 is located closer to the inner cavity of the lamp body 500, thereby making the lighting device smaller.

[0076] In another embodiment, reference Figure 6 As shown, the lighting device also includes a light-shielding ring 720, which is located on the side of the diffuser plate 740 away from the transparent plate 100 and on the side of the light guide plate 710 facing the inner cavity of the lamp body 500, so as to prevent light from entering the inner cavity of the lamp body 500 from the part of the light guide plate 710 opposite to the light-shielding ring 720, thereby reducing light waste.

[0077] Furthermore, the diffusion ring 730 is located on the side of the transparent plate 100 opposite to the diffusion plate 740, and both the transparent plate 100 and the diffusion plate 740 are sandwiched between the light-shielding ring 720 and the diffusion ring 730. This arrangement allows for the fixation of the transparent plate 100 and the diffusion plate 740 along the axial direction of the lamp body 500 without damaging their own structures, thereby extending their service life. As a specific implementation, the transparent plate 100 and the diffusion plate 740 are, for example, integrally formed using a co-extrusion process.

[0078] Further, refer to Figure 4 As shown, a third through-hole 731 is provided at a position opposite to the first through-hole 510 of the diffusion ring 730. This arrangement can prevent the position of the diffusion ring 730 opposite to the first through-hole 510 from blocking the light, thereby improving the utilization rate of the light.

[0079] In a further embodiment, reference is made to... Figure 6 As shown, the lighting device also includes a mounting structure 800, which is located at one end of the lamp body 500 in the extending direction and is detachably connected to the lamp body 500. For example, the control device 610 mentioned earlier is provided on the side of the mounting structure 800 facing the inner cavity of the lamp body 500. The control device 610 and the light-shielding ring 720 are in upper limit engagement in the axial direction of the lamp body 500. With this configuration, by removing the mounting structure 800, the limit between the control device 610 and the light-shielding ring 720 can be released. At this time, the light-shielding ring 720 can freely enter and exit the inner cavity of the lamp body 500 along the axial direction of the lamp body 500. Therefore, the solution adopted in this embodiment allows for relatively convenient installation and removal of the light-shielding ring 720.

[0080] Furthermore, when the light source module 200 is located outside the lamp body 500, the light source module 200 may be mounted on the mounting structure 800, for example. The mounting structure 800 can provide a more stable mounting base for the light source module 200, thereby making the light source module 200 more stable.

[0081] In practical use, the lighting device can be fixed to the building by connecting the mounting structure 800 to the building's mounting part, such as the building's roof.

[0082] As one specific implementation method, the mounting structure 800 is, for example, a mounting plate.

[0083] In one optional embodiment, the lamp body 500 is provided with an annular groove 540 along its circumference, for example, and the mounting structure 800 is threadedly connected to the inner wall of the annular groove 540, for example, by means of a self-tapping screw. With this configuration, when the mounting structure 800 is connected to the lamp body 500, the self-tapping screw can be connected to the annular groove 540 at any position in the circumferential direction of the lamp body 500, thereby making the installation of the mounting structure 800 more convenient.

[0084] In other alternative embodiments, the mounting structure 800 and the lamp body 500 can also be connected by non-removable methods such as welding or gluing.

[0085] In a further embodiment, a limiting portion 520 is provided at one end of the lamp body 500 extending in the direction of extension. The limiting portion 520 is disposed opposite to the light-emitting surface 110 of the transparent plate 100, and the limiting portion 520 is in upper-limiting engagement with at least one of the diffusion ring 730 and the light guide plate 710 in the axial direction of the lamp body 500. With this configuration, the limiting portion 520 can restrict the movement of at least one of the diffusion ring 730 and the light guide plate 710 in the axial direction of the lamp body 500, thereby making the stability of at least one of the diffusion ring 730 and the light guide plate 710 better.

[0086] In one specific implementation, the limiting part 520, the diffusion ring 730, and the light guide plate 710 are all, for example, in a limiting fit in the axial direction of the lamp body 500.

[0087] Furthermore, when the lamp body 500 has a cylindrical structure, the limiting portion 520 includes, for example, an annular flange that protrudes radially from the inner wall of the lamp body 500.

[0088] Furthermore, when the limiting part 520 includes an annular flange, at least two light guide plates 710 can be arranged at circumferential intervals along the lamp body 500 to optimize the overall force distribution of the lighting device, making the force distribution on the limiting part 520 and the transparent plate 100 more uniform in the circumferential direction. In this case, the light guide plates 710 correspond one-to-one with the line light sources 630, and the light emitted by each line light source 630 enters its corresponding light guide plate 710. For example, a cutoff groove 712 is formed between any two adjacent light guide plates 710 to cut off the light, preventing the other light guide plates 710 adjacent to the lit light guide plate 710 from lighting up when one light guide plate 710 lights up. This design, by controlling the individual lighting of the light guide plates 710 at different positions, can simulate window shadows at different circumferential positions of the lamp body 500, thereby enabling the lighting device to meet more simulation needs. Of course, there can be only one line light source 630. In this case, the line light source 630 corresponds to only one light guide plate 710. The brightness of the light guide plate 710 can be controlled by controlling the opening and closing of the line light source 630, while the other light guide plates 710 are always in the dark.

[0089] In a further embodiment, reference is made to... Figure 6 and Figure 8 As shown, one of the light guide plate 710 and the lamp body 500 is provided with a snap-fit ​​part 530, and the other is provided with a slot 714, and the snap-fit ​​part 530 and the slot 714 are engaged in a snap-fit ​​relationship.

[0090] In this embodiment, the snap-fit ​​part 530 and the snap-fit ​​slot 714 engage with each other, thereby making the light guide plate 710 and the lamp body 500 reliably connected together, and thus making the light guide plate 710 more stable.

[0091] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. An optical component of a lighting device, characterized in that, The device includes a light source module (200), a reflective structure (300), and a transparent plate (100). The light source module (200) is used to emit light to the reflective structure (300). The reflective structure (300) is disposed facing the transparent plate (100). The reflective structure (300) is configured to reflect the light to the light-emitting side of the transparent plate (100). The light-emitting side of the transparent plate (100) is used to reflect the light as the emitted light of the lighting device to form a virtual light source on the backlight side of the transparent plate (100).

2. The optical component according to claim 1, characterized in that, The reflective structure (300) includes a first reflective element (310), which is rotatably connected to a mounting member (400) of the lighting device. The first reflective element (310) is configured to rotate relative to the mounting member (400) to change the position of the virtual light source.

3. The optical component according to claim 2, characterized in that, The optical component further includes a drive mechanism that is drivenly connected to the first reflective element (310). The drive mechanism is configured to change the rotation angle of the first reflective element (310) relative to the mounting member (400) according to the direction of sunlight at different times.

4. The optical component according to claim 2 or 3, characterized in that, The reflective structure (300) further includes a second reflective element (320), which is configured to reflect the light from the light source module (200) onto its reflective surface to the first reflective element (310) via the second reflective element (320), and reflect the light onto the transparent plate (100) via the reflective surface of the first reflective element (310).

5. The optical component of the lighting device according to claim 4, characterized in that, The distance from the virtual light source formed by the light source module (200) through the optical components to the human eye is 2~20m.

6. The optical component of the lighting device according to claim 1, characterized in that, The light source module (200) is used to emit a collimated beam.

7. A lighting device, characterized in that, It includes a surface light source (620) and an optical component as described in any one of claims 1-6, wherein the surface light source (620) is used to illuminate the backlight side of the transparent plate (100).

8. The lighting device according to claim 7, characterized in that, The lighting device also includes a control device, which is electrically connected to the surface light source (620). The control device is used to adjust the brightness of the lamp beads at different positions on the surface light source (620) and to control the opening and closing of the lamp beads at different positions through a regional control method.

9. The lighting device according to claim 7 or 8, characterized in that, The lighting device further includes a line light source (630), a light guide plate (710), and a diffusion ring (730). The line light source (630) is disposed facing the light guide plate (710), the light guide plate (710) is disposed along the circumference of the transparent plate (100), the diffusion ring (730) is located on the light-emitting side of the transparent plate (100), and the diffusion ring (730) is located on the side of the light guide plate (710) facing the transparent plate (100).

10. The lighting device according to claim 9, characterized in that, The light guide plate (710) has an arc-shaped structure. When the light guide plate (710) is in a flattened state, the light guide plate (710) is symmetrically arranged on two opposite sides in its own length direction, and both sides are inclined relative to the length direction of the light guide plate (710).

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