Lighting system

Abstract

The application relates to a lighting system, comprising a test lamp, the test lamp comprising a lamp holder, a lampshade and at least two light emitters, the lampshade being arranged on the lamp holder and cooperating to form a mounting cavity, the at least two light emitters being arranged in the mounting cavity and opposite to the lampshade; a first optical lens, the first optical lens being arranged between the lampshade and the at least two light emitters, and used for performing first optical diffusion on the irradiation light of the light emitters; and a second optical lens, the second optical lens being arranged between the lampshade and the first optical lens, and used for performing second optical diffusion on the irradiation light passing through the first optical lens. In this way, the light distribution area of the light emitted from the lampshade to the surface (such as a desktop) of an illuminated object can be larger and more uniformly dispersed, the light density in the ghosting area can be reduced, the degree of the ghosting phenomenon caused by the irradiation of different light emitters can be reduced, the lighting system is more healthy and environmentally friendly, and the harm to the vision of a user can be reduced.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and in particular to a lighting system. Background Technology

[0002] Currently, various types of lamps are widely used in people's lives, studies, and entertainment, meeting their diverse lighting needs. However, with the continuous improvement of living standards, people are no longer satisfied with just basic lighting requirements. Health and other factors are now being considered. For example, students use desk lamps for supplementary lighting to provide sufficient light when ambient light conditions are poor. However, when students are looking down, their heads block the light from reaching the desk. Different light sources on the lamp cast different shadows on the desk, resulting in a ghosting effect. This ghosting not only affects the lighting effect and reduces the user experience, but prolonged use can also damage students' eyesight and harm their health. Summary of the Invention

[0003] Therefore, it is necessary to provide a lighting system that aims to solve the problem of ghosting in existing technologies that harms visual health.

[0004] A lighting system, characterized in that it comprises:

[0005] A test lamp, comprising a lamp holder, a lamp cover, and at least two light-emitting elements, wherein the lamp cover is disposed in the lamp holder and cooperates to form a mounting cavity, and the at least two light-emitting elements are disposed in the mounting cavity and opposite to the lamp cover;

[0006] A first optical lens, disposed between the lampshade and at least two of the light-emitting elements, is used to perform initial optical diffusion of the light emitted by the light-emitting elements; and

[0007] A second optical lens is disposed between the lampshade and the first optical lens to perform a second optical diffusion of the illumination light passing through the first optical lens.

[0008] In one embodiment, the interior of the first optical lens forms a plurality of dispersed microcavities, each of which contains at least one scattering particle, the surface of which is formed with an optical surface.

[0009] In one embodiment, the second optical lens has an optical prism facing the first optical lens.

[0010] In one embodiment, the test lamp further includes a support frame disposed on the lamp holder, and the first optical lens and the second optical lens are stacked on the support frame.

[0011] In one embodiment, the support frame includes a support rod, a first mounting rod, a second mounting rod, and an adjustment mechanism. The support rod is fixed to the lamp holder, the adjustment mechanism is disposed on the support rod, and the adjustment mechanism is connected to the first mounting rod and the second mounting rod, and can drive the first mounting rod and the second mounting rod to move closer to or further away from each other. The first optical lens is disposed on the first mounting rod, and the second optical lens is disposed on the second mounting rod.

[0012] In one embodiment, the lighting system further includes a test screen, a mounting bracket, a suspension element, and a shield;

[0013] The mounting bracket is disposed on one side of the test screen, and the mounting bracket has a mounting portion extending above the test screen; the test lamp is disposed on the mounting portion, and the emitting surface of the test lamp is opposite to the test screen, and the spacing between at least two emitting elements is adjustable; one end of the suspension member is disposed on the mounting portion and / or the test lamp; the shield is connected to the other end of the suspension member, and the shield is suspended between the emitting surface of the test lamp and the test screen.

[0014] In one embodiment, the test lamp further includes an adjustment mechanism disposed within the mounting cavity, and at least two of the light-emitting elements are respectively connected to the adjustment mechanism.

[0015] In one embodiment, the adjustment mechanism includes a bidirectional screw, a first nut block, a second nut block, and an adjustment knob. The bidirectional screw is rotatably mounted on the lamp holder. The first nut block is screwed onto a first helical segment of the bidirectional screw, and the second nut block is screwed onto a second helical segment of the bidirectional screw. The adjustment knob is located at the end of the bidirectional screw and extends to the outside of the lamp holder. At least two light-emitting elements are respectively mounted on the first nut block and the second nut block. The first helical segment and the second helical segment have opposite helical directions.

[0016] In one embodiment, the lamp holder is provided with a strip-shaped through groove, a first marking piece is provided on the first nut block, a second marking piece is provided on the second nut block, the lamp holder is provided with a scale portion, the scale portion is provided along the strip-shaped through groove, and the first marking piece and the second marking piece both pass through the strip-shaped through groove and are engaged with the scale portion.

[0017] In one embodiment, the lighting system further includes a rope drum, a hanging rope, and a handwheel. The rope drum is rotatably mounted on the mounting portion and / or the test lamp. One end of the hanging rope is fixed to the outside of the rope drum, and the other end is connected to the obstruction. The handwheel is fixed to one axial end of the rope drum.

[0018] The technical effects that can be obtained by implementing the technical solution of this application are as follows:

[0019] When the lighting system described above is in operation, at least two light-emitting bodies are simultaneously lit after being powered on, emitting illumination light. The illumination light first passes through a first optical lens, where it is deflected and dispersed, causing the illumination light transmitted through the first optical lens to diffuse and increase the equivalent luminous area. Furthermore, the illumination light continues to pass through a second optical lens, where it is deflected and dispersed a second time, causing the illumination light transmitted through the second optical lens to diffuse a second time and further increase the equivalent luminous area. This ensures that the light distribution area from the lampshade to the surface of the illuminated object (such as a tabletop) is larger and more evenly distributed, reducing the light density in the ghosting area. This reduces the degree of ghosting caused by different light-emitting bodies, making the lighting system healthier and more environmentally friendly, and reducing the harm to the user's eyesight. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the lighting system in this application;

[0023] Figure 2 This is a schematic diagram of the assembly structure of the adjustment mechanism and the light-emitting element;

[0024] Figure 3 This is a schematic diagram showing the arrangement of the first and second lenses and the light path.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Test screen; 20. Mounting bracket; 30. Test lamp; 31. Light-emitting body; 32. Lamp holder; 33. Adjustment mechanism; 331. Bidirectional screw; 332. First nut block; 333. Second nut block; 334. Adjustment knob; 335. First marking plate; 336. Second marking plate; 337. Scale section; 40. Suspension piece; 50. Obstruction; 60. First optical lens; 61. Scattering particles; 70. Second optical lens; 80. Equivalent light-emitting area. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figure 1 The image shows a lighting system according to an embodiment of this application, used in a work setting to test and evaluate the ghosting effect of lamps (such as table lamps). Specifically, the lighting system includes a test screen 10, a mounting bracket 20, a test lamp 30, a hanging member 40, and a blocking object 50.

[0029] Mounting bracket 20 is disposed on one side of test screen 10, and mounting bracket 20 has a mounting portion extending above test screen 10; test lamp 30 is disposed on mounting portion, and the light-emitting surface of test lamp 30 is opposite to test screen 10, test lamp 30 includes at least two light-emitting elements 31, and the spacing between the at least two light-emitting elements 31 is adjustable; one end of suspension member 40 is disposed on mounting portion and / or test lamp 30; obstruction 50 is connected to the other end of suspension member 40, and obstruction 50 is suspended between the light-emitting surface of test lamp 30 and test screen 10.

[0030] Understandably, test screen 10 is an opaque screen with good image formation, such as a whiteboard, white cloth, or any of these.

[0031] The test lamp 30 can be a table lamp. The light-emitting element 31 installed inside can be any one of the following: LED beads, LED strips, LED belts, etc.

[0032] The obstruction 50 is an opaque plate, which can be any shape such as a circle, square, or triangle.

[0033] Implementing the technical solution of this application will have the following beneficial effects: The essence of ghosting in lamps is that there are different light-emitting points from obviously different positions on the light-emitting surface. The boundaries of the shadows formed on the illuminated object will also be obviously different. When the shadows overlap, ghosting is formed. The closer the farthest adjacent light-emitting points are, the lighter the ghosting is. The farther the farthest adjacent light-emitting points are, the heavier the ghosting is. Based on this principle, this solution proposes a lighting system. During testing, the test lamp 30 is installed above the test screen 10, and the obstruction 50 is placed between the test lamps 30 via the suspension member 40. When the test lamp 30 is lit, the light shines onto the test screen 10. Since some of the light is blocked by the obstruction 50, different light sources 31 in different positions will form shadows of different boundary sizes on the test screen 10, thus creating a ghosting phenomenon. By adjusting the spacing between different light sources 31, the severity of the ghosting formed on the test screen 10 will vary. This allows for accurate testing of the different light sources 31 with the optimal spacing, thereby providing scientific and accurate suggestions for improving the lighting fixtures to address the ghosting problem.

[0034] like Figure 1 As shown, in one embodiment, the test lamp 30 includes a lamp holder 32, an adjustment mechanism 33, and a lampshade. The lampshade is disposed on the lamp holder 32 and forms a mounting cavity. The adjustment mechanism 33 is disposed within the mounting cavity, and at least two light-emitting elements 31 are respectively connected to the adjustment mechanism 33. Installing the adjustment mechanism 33 and the light-emitting elements 31 within the mounting cavity achieves a closed installation, protected by the lamp holder 32 and the lampshade. Furthermore, during testing, the spacing between different light-emitting elements 31 can be flexibly adjusted by operating the adjustment mechanism 33 to evaluate the degree of ghosting under different parameter conditions.

[0035] In this embodiment, for ease of understanding of the technical solution, it is assumed that the number of light emitters 31 is exactly two.

[0036] Based on the above embodiments, the adjustment mechanism 33 includes a bidirectional screw 331, a first nut block 332, a second nut block 333, and an adjustment knob 334. The bidirectional screw 331 is rotatably mounted on the lamp holder 32. The first nut block 332 is screwed onto the first helical section of the bidirectional screw 331, and the second nut block 333 is screwed onto the second helical section of the bidirectional screw 331. The adjustment knob 334 is located at the end of the bidirectional screw 331 and extends to the outside of the lamp holder 32. At least two light-emitting elements 31 are respectively mounted on the first nut block 332 and the second nut block 333. The helical directions of the first and second helical sections are opposite.

[0037] During adjustment, turning the adjustment knob 334 rotates the bidirectional screw 331. Since the first and second helical sections have opposite directions, whether the bidirectional screw 331 is turned clockwise or counterclockwise, the first nut block 332 and the second nut block 333 either move towards each other synchronously or move away from each other synchronously, thus achieving the purpose of driving two different light-emitting bodies 31 to move closer or further apart. The spacing adjustment method is simple and efficient, with high screw precision, enabling stepless adjustment of the spacing between two different light-emitting bodies 31, meeting the evaluation needs of different parameters, and adapting to the evaluation needs of more types of lamps.

[0038] In one embodiment, the lamp holder 32 has a strip-shaped through groove. A first indicator piece 335 is provided on the first nut block 332, and a second indicator piece 336 is provided on the second nut block 333. The lamp holder 32 has a scale portion 337, which is arranged along the strip-shaped through groove. Both the first indicator piece 335 and the second indicator piece 336 pass through the strip-shaped through groove and engage with the scale portion 337. During adjustment, as the first nut block 332 and the second nut block 333 move, the first indicator piece 335 and the second indicator piece 336 move synchronously towards or away from each other, thereby indicating different scale positions on the scale portion 337. This allows for direct reading of the moving distance and the real-time distance between the two light-emitting elements 31, making it more convenient and intuitive for testers to obtain test results.

[0039] To investigate the effect of different distances between the obstruction 50 and the test lamp 30 on the ghosting phenomenon, in one embodiment, the lighting system further includes a hanging rod rotatably mounted on the mounting part and / or the test lamp 30, with one end of the suspension member 40 attached to the hanging rod. Alternatively, the lighting system further includes a rope drum, a hanging rope, and a handwheel. The rope drum is rotatably mounted on the mounting part and / or the test lamp 30, one end of the hanging rope is fixed to the outside of the rope drum, and the other end is connected to the obstruction 50. The handwheel is fixed to one axial end of the rope drum.

[0040] Both of the above-described lifting drive structures have the advantages of simple slot structure composition and operation, and good adjustability and controllability for raising or lowering the obstruction 50. For example, taking the hanging rod method as an example, when the hanging rod is rotated upward, the hanging rod will simultaneously pull the suspension member 40 upward, thereby simultaneously raising the obstruction 50, reducing the distance between the obstruction 50 and the test light 30, and conversely, increasing the distance between the obstruction 50 and the test light 30.

[0041] Alternatively, the aforementioned suspension component 40 can be made of rope, chain, or the like.

[0042] Furthermore, to enable more precise analysis of the degree of ghosting, such as the specific size of the ghosted area, in one embodiment, the lighting system also includes an image capture device, a controller, and a display screen. The image capture device is mounted on the obstruction 50 and is electrically connected to the controller, which is in turn electrically connected to the display screen. After capturing the image pattern on the test screen 10, the image capture device immediately sends the image back to the controller. The controller uses analysis and calculation software to define and calculate the size of the ghosted area and finally outputs the results to the display screen for the test personnel to read intuitively.

[0043] For example, an image capture device can be a camera.

[0044] In another embodiment, the mounting bracket 20 further includes a support rod, a lifting rod, and a telescopic joint. The lifting rod is mounted on the support rod in a height-reducing manner via the telescopic joint, and the mounting portion is formed at the end of the lifting rod away from the support rod. Therefore, the lifting rod can drive the test lamp 30, the obstruction 50, etc., to perform overall height-reduction movement, so as to flexibly adjust the distance between the obstruction 50 and the test screen 10, thereby testing and evaluating the correlation between this distance and the degree of ghosting. The telescopic joint can be a telescopic rod or similar structure.

[0045] In addition to the above, such as Figure 1 and Figure 3 As shown, this application also protects a lighting system comprising: a test lamp, the test lamp including a lamp holder, a lamp cover and at least two light emitters, the lamp cover being disposed in the lamp holder and forming a mounting cavity, the at least two light emitters being disposed in the mounting cavity and facing the lamp cover; a first optical lens 60, the first optical lens 60 being disposed between the lamp cover and the at least two light emitters for performing a first optical diffusion of the illumination light from the light emitters; and a second optical lens 70, the second optical lens 70 being disposed between the lamp cover and the first optical lens 60 for performing a second optical diffusion of the illumination light passing through the first optical lens 60.

[0046] When the lighting system described above is in operation, at least two light-emitting bodies are simultaneously lit after being powered on, emitting illumination light. The illumination light first passes through the first optical lens 60, where it is deflected and dispersed, causing the illumination light transmitted through the first optical lens 60 to diffuse and increase the equivalent light-emitting area 80. Furthermore, the illumination light continues to pass through the second optical lens 70, where it is deflected and dispersed a second time, causing the illumination light transmitted through the second optical lens 70 to diffuse a second time and further increase the equivalent light-emitting area 80. This ensures that the light distribution area from the lampshade to the surface of the illuminated object (such as a tabletop) is larger and more evenly distributed, reducing the light density in the ghosting area. This reduces the degree of ghosting caused by different light-emitting bodies, making the lighting system healthier and more environmentally friendly, and reducing the harm to the user's eyesight.

[0047] In one embodiment, the interior of the first optical lens 60 contains a plurality of dispersed microcavities, each containing at least one scattering particle 61. The surface of the scattering particle 61 is formed with an optical curved surface. When light passes through the scattering particle 61, it is dispersed by the optical curved surface, achieving brightness diffusion, so that the illumination light emitted from the first optical lens 60 can achieve the effect of expanding the equivalent light-emitting area 80. Optionally, the scattering particle 61 can be a Mie scattering particle 61.

[0048] The multiple scattering particles 61 located in different microcavities can be uniformly dispersed within the first optical lens 60 or non-uniformly dispersed.

[0049] Furthermore, the second optical lens 70 is provided with an optical prism, which faces the first optical lens 60. When light shines on the optical prism, the light path is deflected, and the light is dispersed a second time, thus achieving brightness diffusion. This increases the equivalent light-emitting area 80 of the light emitted from the second optical lens 70, ensuring a more uniform and dispersed distribution of light on the surface of the illuminated object, reducing ghosting, and protecting the user's eyesight. Optionally, the optical prism can be a regular or irregular concave-convex optical surface.

[0050] In one embodiment, the test lamp further includes a support frame disposed on the lamp holder, and the first optical lens 60 and the second optical lens 70 are stacked on the support frame. The support frame provides mounting support for the first optical lens 60 and the second optical lens 70, while simplifying the mounting structure of the first optical lens 60 and the second optical lens 70 and reducing manufacturing costs.

[0051] Specifically, the support frame includes a support rod, a first mounting rod, a second mounting rod, and an adjustment mechanism. The support rod is fixed to the lamp holder, and the adjustment mechanism is mounted on the support rod and connected to the first and second mounting rods. The adjustment mechanism can drive the first and second mounting rods to move closer to or further apart. A first optical lens 60 is mounted on the first mounting rod, and a second optical lens 70 is mounted on the second mounting rod. Depending on the distance between the test lamp and the surface of the irradiated object, the adjustment mechanism is operated to control the distance between the first optical lens 60 and the second optical lens 70. This allows for flexible adjustment of different light diffusion levels and the acquisition of different equivalent luminous areas 80, ensuring that the light ultimately irradiated onto the object surface remains uniform.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A lighting system, characterized in that, include: A test lamp, comprising a lamp holder, a lamp cover, and at least two light-emitting elements, wherein the lamp cover is disposed in the lamp holder and cooperates to form a mounting cavity, and the at least two light-emitting elements are disposed in the mounting cavity and opposite to the lamp cover; A first optical lens is disposed between the lampshade and at least two light-emitting elements, and is used to perform the first optical diffusion of the illumination light from the light-emitting elements; as well as The second optical lens is disposed between the lampshade and the first optical lens, and is used to perform a second optical diffusion of the illumination light passing through the first optical lens; The test lamp also includes a support frame, which is disposed on the lamp holder, and the first optical lens and the second optical lens are stacked on the support frame; The support frame includes a support rod, a first mounting rod, a second mounting rod, and an adjustment mechanism. The support rod is fixed to the lamp holder, and the adjustment mechanism is disposed on the support rod. The adjustment mechanism is connected to the first mounting rod and the second mounting rod and can drive the first mounting rod and the second mounting rod to move closer to or further away from each other. The first optical lens is disposed on the first mounting rod, and the second optical lens is disposed on the second mounting rod. The interior of the first optical lens forms multiple dispersed microcavities, each of which contains at least one scattering particle, and the surface of the scattering particle is formed with an optical curved surface. The second optical lens has an optical prism, which faces the first optical lens; The test lamp also includes an adjustment mechanism, with at least two light-emitting elements connected to the adjustment mechanism. The adjustment mechanism includes a bidirectional screw, a first nut block, a second nut block, and an adjustment knob. The bidirectional screw is rotatably mounted on the lamp holder. The first nut block is screwed to the first helical section of the bidirectional screw, and the second nut block is screwed to the second helical section of the bidirectional screw. The adjustment knob is located at the end of the bidirectional screw and extends to the outside of the lamp holder. At least two light-emitting elements are respectively mounted on the first nut block and the second nut block. The first helical section and the second helical section have opposite helical directions.

2. The lighting system according to claim 1, characterized in that, The lighting system also includes a test screen, mounting brackets, suspension components, and obstructions; The mounting bracket is disposed on one side of the test screen, and the mounting bracket has a mounting portion extending to the top of the test screen; the test lamp is disposed on the mounting portion, and the light-emitting surface of the test lamp is opposite to the test screen, and the spacing between at least two light-emitting elements is adjustable; one end of the suspension member is disposed on the mounting portion and / or the test lamp; The shield is connected to the other end of the suspension member, and the shield is suspended between the light-emitting surface of the test lamp and the test screen.

3. The lighting system according to claim 2, characterized in that, The adjustment mechanism is located inside the mounting cavity.

4. The lighting system according to claim 3, characterized in that, The lamp holder is provided with a strip-shaped through groove. A first marking piece is provided on the first nut block, and a second marking piece is provided on the second nut block. The lamp holder is provided with a scale portion, which is arranged along the strip-shaped through groove. The first marking piece and the second marking piece both pass through the strip-shaped through groove and cooperate with the scale portion for indication.

5. The lighting system according to claim 4, characterized in that, The lighting system also includes a rope drum, a hanging rope, and a handwheel. The rope drum is rotatably mounted on the mounting part and / or the test lamp. One end of the hanging rope is fixed to the outside of the rope drum, and the other end is connected to the obstruction. The handwheel is fixed to one axial end of the rope drum.

Images