A luminaire with reduced stray light

Abstract

The utility model provides a kind of light fitting that can reduce stray light includes shell;Light source, the light source is arranged in shell;Outer ring, the outer ring is rotatably connected with shell, the outer ring is equipped with reflector;Lens, the lens is arranged in shell, the lens is between the light source and the reflector;Wherein, the centre line of the lens and the centre line of the reflector are inclined to be arranged, to reduce stray light to hit on the reflector.Compared with prior art, it is not easy to produce light spot, improve the quality of light.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a lamp that can reduce stray light. Background Technology

[0002] In related technologies, luminaires, such as downlights, are lighting fixtures installed on ceilings or walls. They consist of a light source, a lens, and an outer ring with a reflector. After passing through the lens, a portion of the light source illuminates the reflector.

[0003] However, in related technologies, the light source generates some stray light after passing through the lens. This stray light hits the reflector and can easily produce multiple light spots, affecting the quality of the light. Utility Model Content

[0004] This utility model discloses a lamp that can reduce stray light, is less prone to producing light spots, and improves the quality of light.

[0005] A type of luminaire that reduces stray light includes: shell; A light source, wherein the light source is disposed within the housing; An outer ring, which is rotatably connected to the outer shell, is provided with a reflector; A lens, which is disposed within a housing and located between the light source and the reflector; The center line of the lens is inclined to the center line of the reflector to reduce stray light hitting the reflector.

[0006] In some embodiments, the angle formed by the centerline of the lens and the centerline of the reflector is a first angle, the reflector has a reflective surface, and the angle formed by the reflective surface and the centerline of the reflector is a second angle, the second angle being greater than the first angle.

[0007] In some embodiments, the second included angle is 5° or more larger than the first included angle.

[0008] In some embodiments, the first included angle is 26° and the second included angle is 31°.

[0009] In some embodiments, a heat sink is also included, which is fixedly connected to the light source for heat exchange with the light source.

[0010] In some embodiments, a fixing member is further included, the fixing member being connected to the housing, the lens being disposed inside the fixing member, one end of the lens abutting against the light source, and the other end of the lens abutting against the fixing member.

[0011] In some embodiments, an anti-glare ring is also included, which is disposed at the lower end of the housing and located on one side of the lens.

[0012] In some embodiments, the lower end face of the housing forms a light-blocking angle with the mirror surface of the lens, and the light-blocking angle is greater than 40°.

[0013] In some embodiments, a spring is further included, the spring including a plug portion that is fixedly connected to the outer ring.

[0014] In some embodiments, a heat sink is included, and the housing is fixedly connected to the heat sink for heat exchange with the heat sink. The housing is provided with a plurality of heat dissipation fins.

[0015] Beneficial effects: When a light source hits a lens, stray light is generated. The center line of the lens is tilted to the center line of the reflector, which changes the propagation angle of the stray light and reduces the amount of stray light hitting the reflector. As a result, it is less likely to generate light spots. Compared with the prior art, it is less likely to generate light spots and the light produced by the lamp is of high quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional schematic diagram of the present invention; Figure 2 This is a cross-sectional schematic diagram of the tilted arrangement of the lens and reflector of this utility model.

[0018] Explanation of main labels: 1. Outer shell; 11. Heat dissipation fins; 2. Light source; 3. Outer ring; 31. Reflector; 311. Reflecting surface; 32. Spring; 321. Connecting part; 4. Lens; 5. Heat sink; 6. Fixing component; 7. Anti-glare ring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Furthermore, the following descriptions of various embodiments are based on the accompanying illustrations and are used to illustrate specific embodiments that can be implemented in this application. Directional terms used in this application, such as "up," "down," "front," "back," "left," "right," "inner," "outer," and "side," are merely for reference to the accompanying illustrations. Therefore, the directional terms used are for better and clearer explanation and understanding of this application, and are not intended to indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] A luminaire that can reduce stray light includes a housing 1, a light source 2, an outer ring 3, and a lens 4.

[0024] The light source 2 is disposed inside the housing 1. Optionally, the light source 2 is an LED lamp.

[0025] The outer ring 3 is rotatably connected to the outer shell 1, or optionally, the outer ring 3 is hinged to the outer shell 1.

[0026] The outer ring 3 is provided with a reflector 31 for reflecting the light source 2. Optionally, the reflector 31 has a reflective surface 311.

[0027] The lens 4 is disposed inside the housing 1, and the lens 4 is located between the light source 2 and the reflector 31.

[0028] The center line of the lens 4 is inclined to the center line of the reflector 31 to reduce stray light hitting the reflector 31.

[0029] The working principle of this utility model is that stray light is generated when light source 2 hits lens 4. The center line of lens 4 is inclined to the center line of reflector 31 to change the propagation angle of stray light, thereby reducing the amount of stray light hitting reflector 31 and making it less likely to generate light spots. Compared with the prior art, it is less likely to generate light spots and the light quality produced by the lamp is high.

[0030] In some embodiments, the angle formed by the centerline of the lens 4 and the centerline of the reflector 31 is a first angle B. The reflector 31 has a reflective surface 311, and the angle formed by the reflective surface 311 and the centerline of the reflector 31 is a second angle C, which is greater than the first angle B. When the second angle C is greater than the first angle B, the stray light propagation angle is better modified to reduce stray light hitting the reflector 31, thereby making it less likely to generate light spots.

[0031] In some embodiments, the second included angle C is 5° or more larger than the first included angle B. When the second included angle C is 5° or more larger than the first included angle B, stray light hitting the reflector 31 is further reduced, thereby making it less likely for light spots to be generated.

[0032] In some embodiments, the first included angle B is 26° and the second included angle C is 31°. When the first included angle B is 26° and the second included angle C is 31°, stray light hitting the reflector 31 is further reduced, thereby making it less likely to generate light spots.

[0033] In some embodiments, a heat sink 5 is further included, which is fixedly connected to the light source 2 and used for heat exchange with the light source 2. The light source 2 generates a large amount of heat during operation, and high temperatures can damage the light source 2. The heat sink 5 dissipates heat from the light source 2, thereby improving its service life.

[0034] In some embodiments, a fixing member 6 is further included, which is connected to the housing 1. The lens 4 is disposed inside the fixing member 6, with one end of the lens 4 abutting against the light source 2 and the other end of the lens 4 abutting against the fixing member 6. The fixing member 6 and the light source 2 work together to fix the lens 4, resulting in a simple structure. Optionally, the fixing member 6 is a sleeve, which is threadedly connected to the housing 1. This facilitates the installation and removal of the lens 4.

[0035] In some embodiments, an anti-glare ring 7 is further included, which is disposed at the lower end of the housing 1 and located on one side of the lens 4. The anti-glare ring 7 serves to prevent glare.

[0036] In some embodiments, the lower end face of the housing 1 and the mirror surface of the lens 4 form a light-blocking angle A, wherein the light-blocking angle A is greater than 40°. When the light-blocking angle A is greater than 40°, the light-blocking effect is good.

[0037] In some embodiments, a spring clip 32 is further included, the spring clip 32 including a plug portion 321, the plug portion 321 being fixedly connected to the outer ring 3. The lamp is fixed in the mounting hole of the mounting component via the spring clip 32, the mounting component being a ceiling or a wall.

[0038] In some embodiments, a heat sink 5 is included, and the housing 1 is fixedly connected to the heat sink 5 for heat exchange with the heat sink 5. The housing 1 is provided with a plurality of heat dissipation fins 11. The heat dissipation effect on the light source 2 is improved by the heat dissipation fins 11.

[0039] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or directly or indirectly used in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. A luminaire capable of reducing stray light, characterized in that, include: Housing (1); light source (2), wherein the light source (2) is disposed inside the housing (1); Outer ring (3), the outer ring (3) is rotatably connected to the outer shell (1), the outer ring (3) is provided with a reflector (31); lens (4), the lens (4) is disposed inside the outer shell (1), the lens (4) is located between the light source (2) and the reflector (31); wherein, the center line of the lens (4) is inclined to the center line of the reflector (31) to reduce stray light hitting the reflector (31).

2. A luminaire that reduces stray light according to claim 1, characterized in that, The angle formed by the center line of the lens (4) and the center line of the reflector (31) is the first angle. The reflector (31) has a reflecting surface (311). The angle formed by the reflecting surface (311) and the center line of the reflector (31) is the second angle. The second angle is greater than the first angle.

3. A luminaire capable of reducing stray light according to claim 2, characterized in that, The second included angle is 5° or more larger than the first included angle.

4. A luminaire for reducing stray light according to claim 3, characterized in that, The first included angle is 26°, and the second included angle is 31°.

5. A luminaire capable of reducing stray light according to claim 1, characterized in that, It also includes a heat sink (5), which is fixedly connected to the light source (2) and is used to exchange heat with the light source (2).

6. A luminaire for reducing stray light according to claim 1, characterized in that, It also includes a fixing member (6), which is connected to the outer shell (1). The lens (4) is disposed inside the fixing member (6). One end of the lens (4) abuts against the light source (2), and the other end of the lens (4) abuts against the fixing member (6).

7. A luminaire for reducing stray light according to claim 1, characterized in that, It also includes an anti-glare ring (7), which is disposed at the lower end of the housing (1) and is located on one side of the lens (4).

8. A luminaire for reducing stray light according to claim 1, characterized in that, The lower end face of the outer shell (1) forms a light-blocking angle with the mirror surface of the lens (4), and the light-blocking angle is greater than 40°.

9. A luminaire for reducing stray light according to claim 1, characterized in that, It also includes a spring (32), which includes a plug (321) and is fixedly connected to the outer ring (3).

10. A luminaire for reducing stray light according to claim 1, characterized in that, It also includes a radiator (5), the outer shell (1) is fixedly connected to the radiator (5) for heat exchange with the radiator (5), and the outer shell (1) is provided with a plurality of heat dissipation fins (11).

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