An optical structure for controlling the upward light of a lamp to be zero and a lamp having the same

Abstract

The present invention discloses an optical structure for controlling the upward light of a lamp to be zero, comprising: a grid plate, on which a plurality of grid holes are arranged, a concave reflector facing the same direction is arranged on the non-illuminating side of each grid hole, and a reflective wall is arranged on both sides of the grid hole; a lens plate, on which a plurality of concave lenses are arranged, the lens plate and the grid plate are overlapped, and each concave lens is correspondingly located in the grid hole, a total reflection baffle is arranged on the side of the concave lens corresponding to the concave reflector, and a light source is arranged in the concave cavity of the concave lens. It can effectively control upward light and stray light.

Description

Technical Field

[0001] The invention relates to a lamp, and in particular to an optical structure for controlling the upward light of the lamp to be zero and a lamp having the same. Background Art

[0002] With the rapid development of the lighting industry, people have higher and higher requirements for the performance of lamps, especially the requirements for the lighting distribution of lamps. However, in the process of outdoor floodlighting, a series of problems such as light pollution and light intrusion always appear in the application of floodlights in outdoor lighting. Therefore, it is very important to eliminate the pollution of stray light and upward light of lamps through good optical structure for site lighting.

[0003] In the application process of venues (football fields, rugby fields, etc.), large-angle floodlights are currently generally used with symmetrical light distribution and reflective covers. However, this lighting method is not a very thorough solution to upward light and stray light, and a large part of the light emitted by the lamp cannot be well controlled. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an optical structure for controlling the upward light of a lamp to be zero, which can effectively control the upward light and stray light.

[0005] The present invention also provides a lamp having the above optical structure.

[0006] The optical structure for controlling the upward light of the lamp to be zero in the first aspect of the embodiment of the present invention is characterized in that it includes: a grille plate, wherein a plurality of grille holes are arranged on the grille plate, a concave reflector facing the same direction is provided on the side of the non-illumination surface of each grille hole, and reflective walls are provided on both sides of the grille hole; a lens plate, wherein a plurality of concave lenses are provided on the lens plate, the lens plate and the grille plate are overlapped, and each of the concave lenses is located in the grille hole, a total reflection blocking wall is provided on the side of the concave lens corresponding to the concave reflector, and the light source is arranged in the concave cavity of the concave lens.

[0007] The optical structure for controlling the upward light of the lamp to be zero according to the embodiment of the present invention has at least the following beneficial effects: the light source emits light at different angles, and when the light passes through the concave lens, among which: the light passing through the non-illuminating surface side, when the incident angle is relatively large, when passing through the total reflection retaining wall, due to the relatively large incident angle, the light is emitted from the illuminated surface through the total reflection effect of the total reflection retaining wall; the light passing through the non-illuminating surface side, when the incident angle is relatively small, the light passes through the concave lens, illuminates the reflecting surface of the concave reflector, and is emitted from the illuminated surface through the reflection effect of the concave reflector; and the light passing through the illuminated surface side, when passing through the lens, is emitted from the illuminated surface through the refraction effect of the concave lens; by providing reflective walls on both sides of the grille hole, the spill light of the court can be controlled near the edge of the court, reducing light pollution and light intrusion of the court near the residential area; through the cooperation of the grille plate and the lens plate, the direction of the light can be directly and effectively interfered after the light is emitted from the concave lens, thereby effectively controlling the upward light and stray light.

[0008] A lamp according to an embodiment of the second aspect of the present invention comprises: a lamp body and an optical structure of the embodiment of the first aspect of the present invention.

[0009] The lamp according to the embodiment of the present invention has at least the following beneficial effects: by introducing the above-mentioned optical structure, stray light can be controlled more effectively on the light-emitting surface to achieve zero upward light, and the overall shape, weight and size of the lamp will be smaller and lighter. More importantly, in actual applications, the light-emitting surface of the lamp will be less seen as a glare source, thereby reducing the glare value of the venue.

[0010] According to some embodiments of the present invention, the lamp body includes a heat sink, a light board and a light-transmitting panel. The light-transmitting panel cover is mounted on the light-emitting surface of the heat sink and forms a mounting cavity between the light board and the heat sink. The light board is mounted in the mounting cavity and is thermally connected to the heat sink. A plurality of LEDs are arranged on the surface of the light board. The optical structure cover is arranged on the surface of the light board, and each of the LEDs is located in a concave cavity corresponding to the concave lens.

[0011] According to some embodiments of the present invention, a breather is provided on the radiator.

[0012] According to some embodiments of the present invention, a waterproof rubber ring is provided between the fitting surfaces of the light-transmitting panel and the radiator, and the light-transmitting panel and the radiator are fixedly connected through the connection.

[0013] According to some embodiments of the present invention, the light-transmitting panel is a glass panel.

[0014] According to some embodiments of the present invention, a light shielding lampshade is provided on the upper edge of the radiator.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic diagram of an optical structure for controlling the upward light of a lamp to be zero according to an embodiment of the present invention;

[0018] Figure 2 is a structural schematic diagram of a grid plate;

[0019] Figure 3 is a schematic diagram of the structure of the lens plate;

[0020] Figure 4 This is a schematic diagram of the upward light emitted by the light source passing through the optical structure and being totally reflected by the total reflection baffle wall (when the deflection angle of the light is the largest);

[0021] Figure 5 This is a schematic diagram of the upward light emitted by the light source passing through the optical structure and being reflected by the concave reflector (when the deflection angle of the light is large);

[0022] Figure 6 This is a schematic diagram of the upward light emitted by the light source passing through the optical structure and being refracted by the concave lens (when the deflection angle of the light is not very large);

[0023] Figure 7 This is a schematic diagram of the light emitted from the light source to both sides being refracted to the front through a concave lens (when the deflection angle of the light is not very large);

[0024] Figure 8 The light emitted from the light source to both sides is refracted by the concave lens and reaches the reflecting wall, and then is reflected once to the front (when the deflection angle of the light is large);

[0025] Fig. 9 The light emitted from the light source to both sides is refracted by the concave lens and reaches the reflecting wall, where it undergoes multiple refractions and reflections to the oblique front (when the deflection angle of the light is the largest);

[0026] Fig.10 It is a schematic diagram of the structure of the lamp;

[0027] Fig.11 This is an exploded view of the lamp.

[0028] Reference numerals:

[0029] Grid plate 100, grid holes 110, concave reflector 120, reflective wall 130;

[0030] Lens plate 200, concave lens 210, total reflection baffle 220;

[0031] Light source 300 , heat sink 410 , light board 420 , light-transmitting panel 430 , waterproof rubber ring 440 , respirator 411 , LED 421 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] like Figures 1 to 3 As shown, the optical structure for controlling the upward light of the lamp to be zero according to an embodiment of the present invention includes:

[0038] A grid plate 100, on which a plurality of grid holes 110 are arranged, a concave reflector 120 facing the same direction is arranged on one side of the non-illumination surface of each grid hole 110, and a reflective wall 130 is arranged on both sides of the grid hole 110;

[0039] The lens plate 200 has a plurality of concave lenses 210 disposed thereon. The lens plate 200 and the grid plate 100 are overlapped and each concave lens 210 is located in a corresponding grid hole 110. A total reflection baffle 220 is disposed on one side of the concave lens 210 corresponding to the concave reflector 120. The light source 300 is disposed in the concave cavity of the concave lens 210.

[0040] Specifically, the light source emits light at different angles. When the light passes through the concave lens:

[0041] like Figure 4 As shown, when the light emitted by the light source 300 passes through the non-illumination surface side, when the incident angle is relatively large, when the light passes through the total reflection baffle 220, due to the large incident angle of the light, the light is totally reflected by the total reflection baffle 220 and emitted from the illumination surface.

[0042] like Figure 5 As shown, when the light emitted by the light source 300 passes through the non-illumination surface side, when the incident angle is relatively small, the light passes through the concave lens 210, illuminates the reflection surface of the concave reflector 120, and is reflected by the concave reflector 120 and emitted from the illumination surface.

[0043] like Figure 6 As shown, when the light emitted by the light source 300 passes through one side of the illumination surface and through the lens, it is refracted by the concave lens 210 and emitted from the illumination surface.

[0044] like Figure 7 As shown, the light from the light source 300 to both sides (when the deflection angle is not very large) is refracted to the front after passing through the concave lens 210 and emitted from the illumination surface.

[0045] like Figure 8 As shown, the light emitted from the light source 300 to both sides is refracted by the concave lens 210 and reaches the reflective wall 130, and is reflected once to the front and emitted from the illumination surface (when the deflection angle of the light is large).

[0046] like Fig. 9 As shown, the light emitted from the light source 300 to both sides is refracted by the concave lens 210 and reaches the reflective wall 130, where it is refracted and reflected multiple times to the oblique front (when the deflection angle of the light is the largest).

[0047] By providing reflective walls 130 on both sides of the grille hole 110, the spill light of the court can be controlled near the edge of the court, thereby reducing light pollution and light intrusion of the court near the residential area.

[0048] In summary, the optical structure of the present invention, through the cooperation of the grid plate 100 and the lens plate 200, can directly and effectively interfere with the direction of the light after the light is emitted from the concave lens 210, so that the emitted light is finally emitted from the irradiated surface, avoiding the light from other non-irradiated surfaces, thereby effectively controlling upward light and stray light.

[0049] According to the second aspect of the present invention, the lamp comprises: a lamp body and an optical structure according to the first aspect of the present invention. By introducing the optical structure, stray light and zero upward light can be more effectively controlled on the light-emitting surface, and the overall weight and size of the lamp will be smaller and lighter. More importantly, in actual applications, the light-emitting surface of the lamp will be less seen as a glare source, reducing the glare value of the venue.

[0050] In some specific embodiments of the present invention, the lamp body includes a radiator 410, a lamp board 420 and a light-transmitting panel 430. The light-transmitting panel 430 is covered on the light-emitting surface of the radiator 410 and forms a mounting cavity with the radiator 410. The lamp board 420 is installed in the mounting cavity and is thermally connected to the radiator 410. A plurality of LEDs 421 are arranged on the surface of the lamp board 420. The optical structure cover is arranged on the surface of the lamp board 420, and each LED 421 is located in the concave cavity of the corresponding concave lens 210.

[0051] Specifically, in Fig.10 and Fig.11 In the embodiment, the LED 421 on the board of the light board 420 is located in the concave cavity corresponding to the concave lens 210, and the emitted light passes through the optical structure of the present invention and is basically emitted from the irradiated surface through the light-transmitting panel 430. When the lamp is normally installed on the lamp pole, the emitted light hardly exceeds the dividing line of the upward light, so the upward light is zero, and the stray light is effectively controlled.

[0052] In some specific embodiments of the present invention, a respirator 411 is provided on the heat sink 410. By providing the respirator 411, the air pressure inside and outside the installation cavity is balanced.

[0053] In some specific embodiments of the present invention, a waterproof rubber ring 440 is provided between the fitting surfaces of the light-transmitting panel 430 and the heat sink 410 , and the light-transmitting panel 430 and the heat sink 410 are fixedly connected through the connection.

[0054] By providing the waterproof rubber ring 440, the installation cavity becomes a waterproof space, so that the lamp can be installed outdoors to avoid being corroded by rain.

[0055] In some specific embodiments of the present invention, the light-transmitting panel 430 is a glass panel.

[0056] In some specific embodiments of the present invention, a light shielding lampshade is provided on the upper edge of the heat sink 410 to further reflect the upward light.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An optical structure for controlling the upward light of a lamp to be zero, characterized in that: include: A grid plate, wherein a plurality of grid holes are arranged on the grid plate, a concave reflector facing the same direction is provided on one side of the non-illumination surface of each grid hole, and reflective walls are provided on both sides of the grid hole; A lens plate, wherein a plurality of concave lenses are arranged on the lens plate, the lens plate and the grid plate are overlapped, and each of the concave lenses is located in a corresponding grid hole, a total reflection baffle is provided on one side of the concave lens corresponding to the concave reflector, and a light source is arranged in a concave cavity of the concave lens; When the light emitted by the light source passes through the non-illuminating surface, part of the light is emitted from the illuminating surface through the total reflection effect of the total reflection baffle wall; part of the light passes through the concave lens and irradiates the reflecting surface of the concave reflector, and is emitted from the illuminating surface through the reflection effect of the concave reflector; When the light emitted by the light source passes through one side of the illumination surface, it is refracted by the concave lens and then emitted from the illumination surface; Part of the light from the light source to both sides is refracted to the front after passing through the concave lens and then emitted from the lighting surface; part of the light is refracted to the reflective wall after passing through the concave lens and then reflected once to the front and then emitted from the lighting surface; Part of the light emitted from the light source to both sides is refracted by the concave lens and reaches the reflection wall, where it is refracted and reflected multiple times to the oblique front.

2. A lamp, characterized in that: include: A lamp body and the optical structure as claimed in claim 1.

3. The lamp according to claim 2, characterized in that: The lamp body includes a radiator, a lamp board and a light-transmitting panel. The light-transmitting panel cover is mounted on the light-emitting surface of the radiator and forms a mounting cavity between the light board and the radiator. The light board is mounted in the mounting cavity and is thermally connected to the radiator. A plurality of LEDs are arranged on the surface of the lamp board. The optical structure cover is arranged on the surface of the lamp board, and each of the LEDs is located in a concave cavity corresponding to the concave lens.

4. The lamp according to claim 3, characterized in that: A respirator is provided on the radiator.

5. The lamp according to claim 3, characterized in that: A waterproof rubber ring is provided between the fitting surfaces of the light-transmitting panel and the radiator, and the light-transmitting panel and the radiator are fixedly connected through the connection.

6. The lamp according to claim 3, characterized in that: The light-transmitting panel is a glass panel.

7. The lamp according to claim 3, characterized in that: The upper edge of the radiator is provided with a light shielding lampshade.

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