Lamp

Abstract

The utility model provides a lamp which comprises a first luminous body, a first reflecting cover, a second reflecting cover and a light-transmitting face cover, the first reflecting cover is in a trumpet shape with two open ends, and a small opening of the first reflecting cover is located at the top. The first luminous body is mounted at the top opening of the first reflecting cover; the light-transmitting mask is provided with a spherical-crown-shaped bottom wall, and the spherical-crown-shaped bottom wall covers the bottom opening of the first reflecting cover; the second reflecting cover is trumpet-shaped, and a large opening of the second reflecting cover is located at the bottom; the spherical-crown-shaped bottom wall is located in the first reflecting cavity of the second reflecting cover and protrudes towards a bottom opening of the second reflecting cover, and the diameter of the bottom opening of the second reflecting cover is larger than that of the bottom opening of the first reflecting cover; a middle light-emitting area and an outer ring light-emitting area surrounding the middle light-emitting area are formed at the bottom of the second reflecting cover, and the luminous flux distribution proportion range of the middle light-emitting area and the outer ring light-emitting area is 5.1: 4.9-8: 2. According to the utility model, a light ring which is soft in transition from strong to weak can be formed on the light-emitting surface, so that the anti-dazzle effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, and specifically, to a lamp. Background Art

[0002] In traditional downlights, in order to make the light irradiate in the required direction, a reflector is provided for reflection, so that the light is fully concentrated to improve the lighting effect. However, existing reflectors are all simple single reflections. After the light emitted by the light-emitting body is reflected by the simple reflector and then refracted by the light-transmitting mask, a single light-emitting surface will be formed on the outer surface of the downlight. This method will result in a single light-emitting surface of the downlight, with uneven and non-soft transitions, and obvious glare will be formed on the light-emitting surface.

[0003] Therefore, a more optimized lighting structure needs to be considered. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a lamp that can form a soft-transitioning halo from strong to weak on the light-emitting surface to achieve an anti-glare effect.

[0005] To achieve the above main purpose, the lamp provided by the utility model includes a first light-emitting body, a first reflector, a second reflector, and a light-transmitting mask. The first reflector is in the shape of a horn with openings at both ends, and the small opening of the first reflector is at the top; the first light-emitting body is installed at the top opening of the first reflector; the light-transmitting mask is provided with a spherical crown-shaped bottom wall, and the spherical crown-shaped bottom wall covers the bottom opening of the first reflector; the second reflector is in the shape of a horn, and the large opening of the second reflector is at the bottom; the spherical crown-shaped bottom wall is located in the first reflecting cavity of the second reflector, and the spherical crown-shaped bottom wall protrudes towards the bottom opening direction of the second reflector. The diameter of the bottom opening of the second reflector is larger than the diameter of the bottom opening of the first reflector; the bottom of the second reflector forms a central light-emitting area and an outer-ring light-emitting area surrounding the central light-emitting area, and the light flux distribution ratio range of the central light-emitting area and the outer-ring light-emitting area is 5.1:4.9 to 8:2.

[0006] As can be seen from the above solution, the lamp of the present utility model forms a central light-emitting area in the middle of the light-emitting surface by arranging a first reflector and a second reflector. The bottom opening diameter of the second reflector is larger than that of the first reflector. At the same time, a light-transmitting mask with a spherical crown-shaped bottom wall is provided at the bottom opening of the first reflector, which can make the light emitted by the first light-emitting body gather towards the spherical crown-shaped bottom wall of the light-transmitting mask through the reflection of the first reflector, forming a central light-emitting area in the middle of the light-emitting surface. After passing through the spherical crown-shaped bottom wall, the light is further reflected by the second reflector, thereby forming an outer ring light-emitting area surrounding the central light-emitting area. The brightness of the outer ring light-emitting area is lower than that of the central light-emitting area, so that a soft-transitioning light ring from strong to weak is formed on the light-emitting surface, achieving an anti-glare effect. Moreover, the light flux distribution ratio range between the central light-emitting area and the outer ring light-emitting area is from 5.1:4.9 to 8:2, which can optimize the light ring effect.

[0007] In a further solution, the curvature of the spherical crown-shaped bottom wall is inversely proportional to the light flux of the central light-emitting area and directly proportional to the light flux of the outer ring light-emitting area; and / or the distance between the lowest point of the spherical crown-shaped bottom wall and the bottom light-emitting opening of the second reflector is inversely proportional to the light flux of the outer ring light-emitting area.

[0008] Thus, by adjusting the curvature of the spherical crown-shaped bottom wall or the distance between the lowest point of the spherical crown-shaped bottom wall and the bottom light-emitting opening of the second reflector, the light fluxes of the central light-emitting area and the outer ring light-emitting area can be adjusted.

[0009] In a further solution, the light-transmitting mask adopts a frosted mask or a diffusing mask. The curvature of the first wall surface of the spherical crown-shaped bottom wall facing the first reflector is equal to the curvature of the second wall surface of the spherical crown-shaped bottom wall facing the first light-reflecting cavity, and the first wall surface and the second wall surface are arranged back to back.

[0010] It can be seen therefrom that adopting a frosted mask or a diffusing mask for the light-transmitting mask can achieve a better light distribution effect and realize the brightness distribution between the central light-emitting area and the outer ring light-emitting area.

[0011] In a further solution, the light-transmitting mask adopts a transparent mask. The curvature of the first wall surface of the spherical crown-shaped bottom wall facing the first reflector is greater than the curvature of the second wall surface of the spherical crown-shaped bottom wall facing the first light-reflecting cavity, and the first wall surface and the second wall surface are arranged back to back.

[0012] It can be seen therefrom that the light-transmitting mask can also adopt a transparent mask, and the brightness distribution between the central light-emitting area and the outer ring light-emitting area can be realized by the curvature of the first wall surface of the spherical crown-shaped bottom wall facing the first reflector being greater than the curvature of the second wall surface of the spherical crown-shaped bottom wall facing the first light-reflecting cavity.

[0013] In a further solution, a first inner reflecting wall surface is provided on the side wall of the first reflecting cover. The first inner reflecting wall surface is arranged around the inner circumference of the first reflecting cover, and the first inner reflecting wall surface is a plane, a convex arc surface or a concave arc surface.

[0014] It can be seen that the first inner reflecting wall surface of the first reflecting cover can be selected as a plane, a convex arc surface or a concave arc surface according to needs, so that the light can be better gathered towards the spherical crown bottom wall of the light-transmitting mask, improving the lighting effect.

[0015] In a further solution, a second inner reflecting wall surface is provided on the side wall of the second reflecting cover. The second inner reflecting wall surface is arranged around the inner circumference of the second reflecting cover, and the second inner reflecting wall surface is a convex arc surface.

[0016] It can be seen that the second inner reflecting wall surface of the second reflecting cover is arranged as a convex arc surface, which can make the light better gathered and improve the lighting effect.

[0017] In a further solution, the second inner reflecting wall surface extends from a position close to the spherical crown bottom wall towards the bottom opening direction of the second reflecting cover.

[0018] It can be seen that the second inner reflecting wall surface extends from a position close to the spherical crown bottom wall towards the bottom opening direction of the second reflecting cover, which can better reflect the light emitted from the spherical crown bottom wall and improve the lighting effect.

[0019] In a further solution, the side wall of the light-transmitting mask and the side wall of the first reflecting cover cooperate to form a second reflecting cavity surrounding the first reflecting cover; a second light-emitting body is arranged in the second reflecting cavity, and the second light-emitting body is arranged around the outer circumference of the first reflecting cover; the second inner reflecting wall surface extends from a position close to the top of the light-transmitting mask towards the bottom opening direction of the second reflecting cover.

[0020] It can be seen that in order to improve the lighting effect of the outer ring light-emitting area, the side wall of the light-transmitting mask and the side wall of the first reflecting cover cooperate to form a second reflecting cavity surrounding the first reflecting cover, and a second light-emitting body is arranged in the second reflecting cavity, so that the light emitted by the second light-emitting body can pass through the second reflecting cavity and then be reflected by the second reflecting cover to form the outer ring light-emitting area.

[0021] In a further solution, an outer reflecting wall surface is provided on the side wall of the first reflecting cover. The outer reflecting wall surface is arranged around the outer circumference of the first reflecting cover.

[0022] It can be seen that by providing the outer reflecting wall surface on the side wall of the first reflecting cover, the light emitted by the second light-emitting body can be reflected, the light can be better gathered, and the light in the outer ring light-emitting area can be made uniform.

[0023] In a further solution, the outer reflecting wall surface is a convex arc surface relative to the second reflecting cavity.

[0024] It can be seen that the outer reflective wall surface is convex relative to the second reflective cavity, which can better gather light.

[0025] In a further solution, the light-transmitting mask and the second reflector are detachably connected by a snap structure.

[0026] In a further solution, a first clamping block is provided on the side wall of the light-transmitting mask, and a first clamping position is provided on the second reflector, and the first clamping block is in clamping cooperation with the first clamping position; and / or a second clamping position is provided on the side wall of the light-transmitting mask, and a second clamping block is provided on the second reflector, and the second clamping block is in clamping cooperation with the second clamping position.

[0027] It can be seen that the light-transmitting mask and the second reflector are detachably connected by a snap structure, which facilitates the disassembly and assembly of the light-transmitting mask and the second reflector.

[0028] In a further solution, the ratio range of the bottom opening diameter of the second reflector to the bottom opening diameter of the first reflector is 1.5:1 to 2.5:1; and / or the ratio range of the height of the second reflector to the height of the first reflector is 0.7:1 to 1.5:1.

[0029] It can be seen that the ratio range of the bottom opening diameter of the second reflector to the bottom opening diameter of the first reflector is 1.5:1 to 2.5:1, and the ratio range of the height of the second reflector to the height of the first reflector is 0.7:1 to 1.5:1, which can optimize the light output effect. Description of the Drawings

[0030] Figure 1 is an exploded view of the structure of the first embodiment of the lighting fixture of the present invention.

[0031] Figure 2 is a cross-sectional view of the structure of the first embodiment of the lighting fixture of the present invention.

[0032] Figure 3 is Figure 2 an enlarged view of part A in

[0033] Figure 4 is a schematic diagram of the light illumination forming the inner layer light circle in the first embodiment of the lighting fixture of the present invention.

[0034] Figure 5 is a schematic diagram of the light illumination forming the outer ring light output area in the first embodiment of the lighting fixture of the present invention.

[0035] Figure 6 is an exploded view of the structure of the first reflector in the first embodiment of the lighting fixture of the present invention in a disassembled state.

[0036] Figure 7 is a cross-sectional view of the structure of the second embodiment of the lighting fixture of the present invention.

[0037] Figure 8 It is a structural cross-sectional view of the third embodiment of the lamp of the present utility model.

[0038] Figure 9 It is a structural cross-sectional view of the fourth embodiment of the lamp of the present utility model.

[0039] Figure 10 is Figure 9 an enlarged view of part B in

[0040] Figure 11 It is a schematic diagram of the light illumination forming the inner layer light ring in the fourth embodiment of the lamp of the present utility model.

[0041] Figure 12 It is a schematic diagram of the light illumination forming the outer ring light-emitting area in the fourth embodiment of the lamp of the present utility model.

[0042] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments. Specific embodiments

[0043] The first embodiment of the lamp:

[0044] In this embodiment, as Figure 1 and Figure 2As shown, the lamp includes a first light-emitting body 1, a first reflector 2, a light-transmitting mask 3, a second reflector 4, and a mounting bracket 5. The second reflector 4 is mounted on the mounting bracket 5. The second reflector 4 is in a horn shape, with the large opening of the second reflector 4 at the bottom and the top of the second reflector 4 connected to the mounting bracket 5. The first reflector 2 is in a horn shape with both ends open, and the small opening of the first reflector 2 is at the top of the first reflector 2. The bottom of the first reflector 2 is connected to the light-transmitting mask 3. Optionally, the bottom of the first reflector 2 is adhesively bonded to the light-transmitting mask 3, or connected by a bolt structure, or connected by a snap-fit structure. The first light-emitting body 1 is installed at the top opening of the first reflector 2, and the first light-emitting body 1 irradiates from the top opening of the first reflector 2 towards the bottom opening of the first reflector 2. The light-transmitting mask 3 is provided with a spherical crown-shaped bottom wall 31, and the spherical crown-shaped bottom wall 31 covers the bottom opening of the first reflector 2. The spherical crown-shaped bottom wall 31 is located in the first light-reflecting cavity 41 of the second reflector 4, and the spherical crown-shaped bottom wall 31 protrudes towards the bottom opening direction of the second reflector 4. The diameter of the bottom opening of the second reflector 4 is larger than the diameter of the bottom opening of the first reflector 2. Preferably, the ratio range of the diameter of the bottom opening of the second reflector 4 to the diameter of the bottom opening of the first reflector 2 is 1.5:1 to 2.5:1, and the ratio range of the height of the second reflector 4 to the height of the first reflector 2 is 0.7:1 to 1.5:1. In this embodiment, the ratio of the diameter of the bottom opening of the second reflector 4 to the diameter of the bottom opening of the first reflector 2 is 2:1, and the ratio of the height of the second reflector 4 to the height of the first reflector 2 is 1:1. By reasonably setting the ratio of the diameter of the bottom opening of the second reflector 4 to the diameter of the bottom opening of the first reflector 2, and reasonably setting the ratio of the height of the second reflector 4 to the height of the first reflector 2, the light-emitting effect can be optimized.

[0045] See Figure 3 , the light-transmitting mask 3 and the second reflector 4 are detachably connected by a snap structure. In this embodiment, the light-transmitting mask 3 is provided with a side wall 32 circumferentially arranged along the spherical crown-shaped bottom wall 31. A first clamping block 321 is provided on the side wall 32 of the light-transmitting mask 3, and a first clamping position 422 is provided on the side wall 42 of the second reflector 4. The first clamping block 321 and the first clamping position 422 are in clamping cooperation. Optionally, a second clamping position (not shown) is further provided on the side wall 32 of the light-transmitting mask 3, and a second clamping block (not shown) is further provided on the side wall 42 of the second reflector 4. The second clamping block and the second clamping position are in clamping cooperation.

[0046] By Figure 2It can be known that in this embodiment, the light-transmitting mask 3 adopts a frosted mask or a diffusing mask. The curvature of the first wall surface 311 of the spherical crown-shaped bottom wall 31 facing the first reflector 2 is equal to the curvature of the second wall surface 312 of the spherical crown-shaped bottom wall 31 facing the first reflective cavity 41. The first wall surface 311 and the second wall surface 312 are arranged back to back. The frosted mask or the diffusing mask has the function of diverging light. Therefore, the equal curvature of the first wall surface 311 and the second wall surface 312 can achieve a better light distribution effect. Of course, in an alternative embodiment, the light-transmitting mask 3 adopts a frosted mask or a diffusing mask, and the curvature of the first wall surface 311 and the curvature of the second wall surface 312 may not be equal.

[0047] In this embodiment, a first inner reflective wall surface 21 is provided on the side wall of the first reflector 2. The first inner reflective wall surface 21 is arranged around the inner circumference of the first reflector 2, and the first inner reflective wall surface 21 is a plane. A second inner reflective wall surface 421 is provided on the side wall 42 of the second reflector 4. The second inner reflective wall surface 421 is arranged around the inner circumference of the second reflector 4, and the second inner reflective wall surface 421 is a convex arc surface. The second inner reflective wall surface 421 extends from a position close to the spherical crown-shaped bottom wall 31 towards the bottom opening direction of the second reflector 4.

[0048] When the lamp of this embodiment is working, refer to Figure 4 and Figure 5 , the light emitted by the first light-emitting body 1 towards the light-transmitting mask 3 converges towards the light-transmitting mask 3 through the reflection of the first inner reflective wall surface 21. Then, the light is scattered by the light-transmitting mask 3, and a central light-emitting area and an outer ring light-emitting area surrounding the central light-emitting area are formed at the bottom of the second reflector 4. Within the cross-sectional area enclosed by the bottom edge of the second reflector 4, the central light-emitting area extends from the center of the cross-sectional area towards the edge. The diameter of the central light-emitting area is a, and the outer ring light-emitting area is annularly surrounded along the outer circumference of the central light-emitting area. The outer diameter of the outer ring light-emitting area is c. The bottom opening diameter of the second reflector 4 is larger than the bottom opening diameter of the first reflector 2. At the same time, the spherical crown-shaped bottom wall 31 is provided on the light-transmitting mask 3 at the bottom opening of the first reflector 2, which can make the light emitted by the first light-emitting body 1 converge towards the spherical crown-shaped bottom wall 31 of the light-transmitting mask 3 through the reflection of the first reflector 2, forming the central light-emitting area of the cross-sectional area. After passing through the spherical crown-shaped bottom wall 31, the light is further reflected by the second reflector 4, thereby forming the outer ring light-emitting area surrounding the central light-emitting area. The brightness of the outer ring light-emitting area is lower than the brightness of the central light-emitting area, making the light-emitting surface form a light illumination effect that gradually weakens from strong to weak with a gentle transition. The light flux distribution ratio range of the central light-emitting area and the outer ring light-emitting area is from 5.1:4.9 to 8:2. Preferably, the light flux distribution ratio range of the central light-emitting area and the outer ring light-emitting area is 6:4.

[0049] The luminous flux of the central light-emitting area and the luminous flux of the outer-ring light-emitting area can be adjusted by the curvature of the spherical crown-shaped bottom wall 31 of the light-transmitting mask 3. The curvature of the spherical crown-shaped bottom wall 31 is inversely proportional to the luminous flux of the central light-emitting area and directly proportional to the luminous flux of the outer-ring light-emitting area. That is, when the curvature of the spherical crown-shaped bottom wall 31 increases, the refractive index of the light refracted to the outer-ring light-emitting area increases, resulting in an increase in the luminous flux of the outer-ring light-emitting area and a decrease in the luminous flux of the central light-emitting area. The luminous flux of the central light-emitting area and the luminous flux of the outer-ring light-emitting area can also be adjusted by the distance between the lowest point of the spherical crown-shaped bottom wall 31 and the light outlet of the bottom of the second reflector 4. The distance between the lowest point of the spherical crown-shaped bottom wall 31 and the light outlet of the bottom of the second reflector 4 is inversely proportional to the luminous flux of the outer-ring light-emitting area. That is, when the distance between the lowest point of the spherical crown-shaped bottom wall 31 and the light outlet of the bottom of the second reflector 4 decreases, the light rays of the light-transmitting mask 3 hitting the second reflector 4 can be reduced, thereby reducing the loss caused by light reflection and increasing the luminous flux of the outer-ring light-emitting area. When the curvature of the spherical crown-shaped bottom wall 31 of the light-transmitting mask 3 remains unchanged, the smaller the distance between the lowest point of the spherical crown-shaped bottom wall 31 and the light outlet of the bottom of the second reflector 4, the greater the luminous flux of the outer-ring light-emitting area, and the luminous flux of the central light-emitting area remains basically unchanged.

[0050] In addition, it can also be known that Figure 1 the second reflector 4 includes a connecting portion 4A and a reflecting portion 4B. The top of the connecting portion 4A is connected to the mounting bracket 5, and the bottom of the connecting portion 4A is connected to the reflecting portion 4B. In this embodiment, the connecting portion 4A and the reflecting portion 4B are integrally formed.

[0051] In an alternative embodiment, referring to Figure 6 , the connecting portion 4A and the reflecting portion 4B are two separate components, and the connecting portion 4A and the reflecting portion 4B can be detachably connected by means such as screws and buckles.

[0052] Second embodiment of the lamp:

[0053] The difference between the lamp in this embodiment and the lamp in the first embodiment lies only in the structural setting of the side wall of the first reflector. Only the different structures will be described below, and the reference numerals used are the same as those in the first embodiment.

[0054] As Figure 7 shown, in this embodiment, the side wall of the first reflector 2 of the lamp is provided with a first inner reflecting wall surface 21, and the first inner reflecting wall surface 21 is arranged to surround the inner circumference of the first reflector 2, and the first inner reflecting wall surface 21 is arranged as an outwardly convex arc surface.

[0055] Third embodiment of the lamp:

[0056] The difference between the lamp in this embodiment and the lamp in the first embodiment lies only in the structural setting of the light-transmitting mask. Only the different structures will be described below, and the reference numerals used are the same as those in the first embodiment.

[0057] As Figure 8 shown, in this embodiment, the light-transmitting mask 3 is a transparent mask, for example, a lens. The curvature of the first wall surface 311 of the spherical crown-shaped bottom wall 31 facing the first reflector 2 is greater than the curvature of the second wall surface 312 of the spherical crown-shaped bottom wall 31 facing the first light-reflecting cavity 41, and the first wall surface 311 and the second wall surface 312 are arranged back to back. When the curvature of the first wall surface 311 of the spherical crown-shaped bottom wall 31 facing the first reflector 2 is greater than the curvature of the second wall surface 312 of the spherical crown-shaped bottom wall 31 facing the first light-reflecting cavity 41, the divergence of the transparent mask can be further expanded to diverge the light to the periphery of the light-transmitting mask 3. Therefore, adjusting the curvature of the first wall surface 311 and the curvature of the second wall surface 312 can achieve the light flux distribution between the central light-emitting area and the outer ring light-emitting area.

[0058] Fourth embodiment of the lamp:

[0059] In this embodiment, as Figure 9As shown, the lamp includes a first light emitter 10, a first reflector 20, a light-transmitting mask 30, a second reflector 40, a mounting bracket 50, and a second light emitter 60. The second reflector 40 is mounted on the mounting bracket 50. The second reflector 40 is horn-shaped, with its large opening at the bottom and its top connected to the mounting bracket 50. The first reflector 20 is horn-shaped with both ends open, and its small opening is at the top of the first reflector 20. The bottom of the first reflector 20 is connected to the light-transmitting mask 30. Optionally, the bottom of the first reflector 20 is adhesively bonded or connected by a bolt structure or a snap-fit structure to the light-transmitting mask 30. The first light emitter 10 is installed at the top opening of the first reflector 20 and irradiates from the top opening of the first reflector 20 towards the bottom opening of the first reflector 20. The light-transmitting mask 30 is provided with a spherical crown-shaped bottom wall 301 that covers the bottom opening of the first reflector 20. The spherical crown-shaped bottom wall 301 is located within the first light-reflecting cavity 401 of the second reflector 40 and protrudes towards the bottom opening of the second reflector 40. The diameter of the bottom opening of the second reflector 40 is larger than the diameter of the bottom opening of the first reflector 20. Preferably, the ratio range of the diameter of the bottom opening of the second reflector 40 to the diameter of the bottom opening of the first reflector 20 is 1.5:1 to 2.5:1, and the ratio range of the height of the second reflector 40 to the height of the first reflector 20 is 1.5:1 to 2.5:1. In this embodiment, the ratio of the diameter of the bottom opening of the second reflector 40 to the diameter of the bottom opening of the first reflector 20 is 2:1, and the ratio of the height of the second reflector 40 to the height of the first reflector 20 is 2:1. By reasonably setting the ratio of the diameter of the bottom opening of the second reflector 40 to the diameter of the bottom opening of the first reflector 20 and the ratio of the height of the second reflector 40 to the height of the first reflector 20, the light output effect can be optimized.

[0060] The side wall of the light-transmitting mask 30 cooperates with the side wall of the first reflector 20 to form a second light-reflecting cavity 70 surrounding the first reflector 20. The second light emitter 60 is installed at the top of the second reflector 40. The second light emitter 60 is located within the second light-reflecting cavity 70 and is arranged to surround the outer periphery of the first reflector 20. The second inner light-reflecting wall surface 4021 extends from a position near the top of the light-transmitting mask 30 towards the bottom opening of the second reflector 40.

[0061] See Figure 10, the light-transmitting mask 30 and the second reflector 40 are detachably connected through a snap structure. In this embodiment, the light-transmitting mask 30 is provided with a side wall 302 that is circumferentially arranged along the circumferential direction of the spherical crown-shaped bottom wall 301. A first clamping block 3021 is arranged on the side wall 302 of the light-transmitting mask 30, and a first clamping position 4022 is arranged on the side wall 402 of the second reflector 40. The first clamping block 3021 is in clamping cooperation with the first clamping position 4022. Optionally, a second clamping position (not shown) is further arranged on the side wall 302 of the light-transmitting mask 30, and a second clamping block (not shown) is further arranged on the side wall 402 of the second reflector 40. The second clamping block is in clamping cooperation with the second clamping position.

[0062] It can be seen from Figure 9 that in this embodiment, the light-transmitting mask 30 adopts a frosted mask or a diffusing mask. The curvature of the first wall surface 3011 of the spherical crown-shaped bottom wall 301 facing the first reflector 20 is equal to the curvature of the second wall surface 3012 of the spherical crown-shaped bottom wall 301 facing the first reflecting cavity 401. The first wall surface 3011 and the second wall surface 3012 are arranged back to back. Of course, in an optional embodiment, the light-transmitting mask 30 adopts a frosted mask or a diffusing mask, and the curvature of the first wall surface 3011 and the curvature of the second wall surface 3012 may not be equal either.

[0063] In this embodiment, the side wall of the first reflector 20 is provided with a first inner reflecting wall surface 201 and an outer reflecting wall surface 202. The first inner reflecting wall surface 201 is circumferentially arranged along the inner circumference of the first reflector 20, and the first inner reflecting wall surface 201 is in an inwardly concave arc shape. The outer reflecting wall surface 202 is arranged along the outer circumference of the first reflector 20. The outer reflecting wall surface 202 is in an outwardly convex arc shape relative to the second reflecting cavity 70. The side wall 402 of the second reflector 40 is provided with a second inner reflecting wall surface 4021. The second inner reflecting wall surface 4021 is circumferentially arranged along the inner circumference of the second reflector 40, and the second inner reflecting wall surface 4021 is in an outwardly convex arc shape. The second inner reflecting wall surface 4021 extends from a position close to the spherical crown-shaped bottom wall 301 towards the bottom opening direction of the second reflector 40.

[0064] When the lamp of this embodiment is working, refer to Figure 11 and Figure 12The light emitted by the first light emitter 10 towards the light-transmitting mask 30 converges towards the light-transmitting mask 30 through the reflection of the first inner reflecting wall surface 201 and the outer reflecting wall surface 202. Then, the light is scattered by the light-transmitting mask 30. At the same time, the light emitted by the second light emitter 60 is reflected by the outer reflecting surface of the first reflecting cover to the light-transmitting mask 30, and the light scattered by the light-transmitting mask 30 is reflected by the inner reflecting surface of the second reflecting cover and then emitted, so that a central light-emitting area and an outer-ring light-emitting area surrounding the central light-emitting area are formed at the bottom of the second reflecting cover 40. In the cross-sectional area surrounded by the bottom edge of the second reflecting cover 40, the central light-emitting area extends from the center of the cross-sectional area towards the edge, the diameter of the central light-emitting area is G, the outer-ring light-emitting area surrounds the outer periphery of the central light-emitting area in a ring shape, and the outer diameter of the outer-ring light-emitting area is H. Since the bottom opening diameter of the second reflecting cover 40 is larger than the bottom opening diameter of the first reflecting cover 20, and the light-transmitting mask 30 located at the bottom opening of the first reflecting cover 20 is provided with a spherical crown-shaped bottom wall 301, the light emitted by the first light emitter 10 can be reflected by the first reflecting cover 20 and converge towards the spherical crown-shaped bottom wall 301 of the light-transmitting mask 3, forming the central light-emitting area of the cross-sectional area. After passing through the spherical crown-shaped bottom wall 301, the light is further reflected by the second reflecting cover 4, thereby forming an outer-ring light-emitting area surrounding the central light-emitting area. The brightness of the outer-ring light-emitting area is lower than that of the central light-emitting area, so that the light-emitting surface forms a light illumination effect that gradually weakens from strong to weak with a gentle transition. In addition, a second light-reflecting cavity 70 surrounding the first reflecting cover 20 is formed by the cooperation of the side wall 302 of the light-transmitting mask 30 and the side wall of the first reflecting cover 20, and a second light emitter 60 is arranged in the second light-reflecting cavity 70, so that the light emitted by the second light emitter 60 can pass through the second light-reflecting cavity 70 and then be reflected by the second reflecting cover 30 to form the outer-ring light-emitting area, improving the light illumination effect of the outer-ring light-emitting area. The light flux distribution ratio range of the central light-emitting area and the outer-ring light-emitting area is 5.1:4.9 to 8:2. Preferably, the light flux distribution ratio range of the central light-emitting area and the outer-ring light-emitting area is 6:4.

[0065] The luminous flux of the central light-emitting area and the luminous flux of the outer-ring light-emitting area can be adjusted by the curvature of the spherical crown-shaped bottom wall 301 of the light-transmitting mask 30. The curvature of the spherical crown-shaped bottom wall 301 is inversely proportional to the luminous flux of the central light-emitting area and is directly proportional to the luminous flux of the outer-ring light-emitting area. That is, when the curvature of the spherical crown-shaped bottom wall 301 increases, the refractive index of the light refracted to the outer-ring light-emitting area increases, so that the luminous flux of the outer-ring light-emitting area increases and the luminous flux of the central light-emitting area decreases. The luminous flux of the central light-emitting area and the luminous flux of the outer-ring light-emitting area can also be adjusted by the distance between the lowest point of the spherical crown-shaped bottom wall 301 and the light-emitting port at the bottom of the second reflector 40. The distance between the lowest point of the spherical crown-shaped bottom wall 301 and the light-emitting port at the bottom of the second reflector 40 is inversely proportional to the luminous flux of the outer-ring light-emitting area. That is, when the distance between the lowest point of the spherical crown-shaped bottom wall 301 and the light-emitting port at the bottom of the second reflector 40 decreases, the light rays of the light-transmitting mask 30 hitting the second reflector 40 can be reduced, thereby reducing the loss caused by light reflection and increasing the luminous flux of the outer-ring light-emitting area. When the curvature of the spherical crown-shaped bottom wall 301 of the light-transmitting mask 30 remains unchanged, the smaller the distance between the lowest point of the spherical crown-shaped bottom wall 301 and the light-emitting port at the bottom of the second reflector 40, the greater the luminous flux of the outer-ring light-emitting area, and the luminous flux of the central light-emitting area remains basically unchanged.

[0066] As can be seen from the above, the lamp of the present utility model is provided with a first reflector and a second reflector. The bottom opening diameter of the second reflector is larger than the bottom opening diameter of the first reflector. At the same time, the light-transmitting mask located at the bottom opening of the first reflector is provided with a spherical crown-shaped bottom wall, so that the light rays emitted by the first light-emitting body are reflected by the first reflector and converge towards the spherical crown-shaped bottom wall of the light-transmitting mask, forming a central light-emitting area on the light-emitting surface. After passing through the spherical crown-shaped bottom wall, the light rays are further reflected by the second reflector, thereby forming an outer-ring light-emitting area surrounding the central light-emitting area. The brightness of the outer-ring light-emitting area is lower than the brightness of the central light-emitting area, so that a light ring with a strong-to-weak and gentle transition is formed on the light-emitting surface, achieving an anti-glare effect.

[0067] It should be noted that the above is only a preferred embodiment of the present utility model, but the design concept of the utility model is not limited thereto. Any non-substantive modifications made to the present utility model using this concept also fall within the protection scope of the present utility model.

Claims

1. A lighting fixture, comprising a first light-emitting body, a first reflector, a second reflector and a light-transmitting mask, characterized in that: The first reflector is in the shape of a horn with openings at both ends, and the small opening of the first reflector is at the top; The first light-emitting body is installed at the top opening of the first reflector; The light-transmitting mask is provided with a spherical crown-shaped bottom wall, and the spherical crown-shaped bottom wall covers the bottom opening of the first reflector; The second reflector is in the shape of a horn, and the large opening of the second reflector is at the bottom; The spherical crown-shaped bottom wall is located in the first light-reflecting cavity of the second reflector, the spherical crown-shaped bottom wall protrudes towards the bottom opening direction of the second reflector, and the diameter of the bottom opening of the second reflector is larger than the diameter of the bottom opening of the first reflector; The bottom of the second reflector forms a central light-emitting area and an outer-ring light-emitting area surrounding the central light-emitting area, and the light flux distribution ratio range of the central light-emitting area and the outer-ring light-emitting area is 5.1:4.9 to 8:

2.

2. The lighting fixture according to claim 1, characterized in that: The curvature of the spherical crown-shaped bottom wall is inversely proportional to the light flux of the central light-emitting area and is directly proportional to the light flux of the outer-ring light-emitting area; and / or The distance between the lowest point of the spherical crown-shaped bottom wall and the light-emitting opening at the bottom of the second reflector is inversely proportional to the light flux of the outer-ring light-emitting area.

3. The lighting fixture according to claim 1, characterized in that: The light-transmitting mask adopts a frosted mask or a diffusing mask, the curvature of the first wall surface of the spherical crown-shaped bottom wall facing the first reflector is equal to the curvature of the second wall surface of the spherical crown-shaped bottom wall facing the first light-reflecting cavity, and the first wall surface and the second wall surface are arranged back to back.

4. The lighting fixture according to claim 1, characterized in that: The light-transmitting mask adopts a transparent mask, the curvature of the first wall surface of the spherical crown-shaped bottom wall facing the first reflector is greater than the curvature of the second wall surface of the spherical crown-shaped bottom wall facing the first light-reflecting cavity, and the first wall surface and the second wall surface are arranged back to back.

5. The lighting fixture according to any one of claims 1 to 4, characterized in that: The side wall of the first reflector is provided with a first inner light-reflecting wall surface, the first inner light-reflecting wall surface is arranged around the inner circumference of the first reflector, and the first inner light-reflecting wall surface is a plane, a convex arc surface or a concave arc surface.

6. The lighting fixture according to any one of claims 1 to 4, characterized in that: The side wall of the second reflector is provided with a second inner light-reflecting wall surface, the second inner light-reflecting wall surface is arranged around the inner circumference of the second reflector, and the second inner light-reflecting wall surface is a convex arc surface.

7. The lighting fixture according to claim 6, characterized in that: The second inner light-reflecting wall surface extends from a position close to the spherical crown-shaped bottom wall towards the bottom opening direction of the second reflector.

8. The lighting fixture according to claim 6, characterized in that: The side wall of the light-transmitting mask and the side wall of the first reflector cooperate to form a second light-reflecting cavity surrounding the first reflector; A second light-emitting body is arranged in the second reflective cavity, and the second light-emitting body is arranged to surround the outer periphery of the first reflector. The second inner reflective wall surface extends from a position near the top of the light-transmitting mask towards the bottom opening direction of the second reflector.

9. The lamp according to claim 8, wherein: An outer reflective wall surface is provided on the side wall of the first reflector, and the outer reflective wall surface is arranged to surround the outer periphery of the first reflector.

10. The lamp according to claim 9, wherein: The outer reflective wall surface is an outwardly convex arc surface with respect to the second reflective cavity.

11. The lamp according to any one of claims 1 to 4, wherein: The light-transmitting mask is detachably connected to the first reflector and / or the second reflector.

12. The lamp according to claim 11, wherein: A first clamping block is provided on the side wall of the light-transmitting mask, and a first clamping position is provided on the second reflector, and the first clamping block is in clamping cooperation with the first clamping position; and / or A second clamping position is provided on the side wall of the light-transmitting mask, and a second clamping block is provided on the second reflector, and the second clamping block is in clamping cooperation with the second clamping position.

13. The lamp according to any one of claims 1 to 4, wherein: The ratio range of the bottom opening diameter of the second reflector to the bottom opening diameter of the first reflector is 1.5:1 to 2.5:1; and / or The ratio range of the height of the second reflector to the height of the first reflector is 0.7:1 to 1.5:1.

Images