Anti-dazzle down lamp

Abstract

The utility model provides an anti-dazzle down lamp, which comprises a lamp holder, a ring cover, a light source module and an optical component, and is characterized in that the optical component comprises a prismatic crystal plate and a diffusion film, a two-stage annular step platform is arranged on the side wall of an opening of the lamp holder so as to limit and bear the diffusion film and the prismatic crystal plate respectively, and the prismatic crystal plate is sealed at the opening of the lamp holder. Wherein the light source module is arranged in the lamp holder, the light emitting direction of the light source module faces the opening of the lamp holder, and the ring cover is connected with the lamp holder and presses and covers the edge of the prismatic crystal plate so as to enable the prismatic crystal plate to at least press and cover the diffusion film located at the step platform. Therefore, the influence on the luminous flux is reduced while the anti-dazzle effect is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to lighting technical field especially relates to a kind of anti-glare down lamp. BACKGROUND

[0002] The straight-down type light-emitting down lamp that current market is more popular, its anti-glare design mostly uses to increase anti-glare grid to realize anti-glare effect, for example, the prior art presents a kind of replaceable face ring's anti-glare down lamp (patent application number: 201820940403.8), it mainly includes down lamp base, LED assembly and ring cover, the down lamp base is radiator, the radiator is evenly provided with fin, the LED assembly includes lamp plate, diffusion film and anti-glare grid, the lamp plate is detachably connected with the mounting seat of radiator, the diffusion film is covered and set on the lamp plate, the anti-glare grid is covered and set on the diffusion film.

[0003] However, the above-mentioned scheme can achieve good anti-glare effect, but the disadvantage is that, since the light-shielding anti-glare is used, the brightness of the lamp is seriously affected, and the luminous flux is significantly reduced (more than 20%). SUMMARY

[0004] Therefore, the main purpose of the utility model is to provide an anti-glare down lamp, which can achieve anti-glare effect while reducing the impact on luminous flux.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an anti-glare down lamp is provided, which comprises a lamp holder, a ring cover, a light source module and an optical assembly, characterized in that the optical assembly comprises a prismatic plate and a diffusion film, wherein a two-stage annular stepped platform is provided on the edge wall of the opening of the lamp holder to limit and support the diffusion film and the prismatic plate, respectively, and the prismatic plate is sealed at the opening of the lamp holder, the light source module is arranged in the lamp holder and its light-emitting direction is towards the opening of the lamp holder, the ring cover is connected with the lamp holder and covers the edge of the prismatic plate to make the prismatic plate at least cover the diffusion film at the stepped platform.

[0006] Preferably, the height of the stepped platform supporting the prismatic plate is slightly smaller than the thickness of the diffusion film.

[0007] Preferably, the stepped platform of the lamp holder is provided with a light-shielding wall on the outside, the outer wall of the lamp holder is provided with a light-shielding edge, the bottom of the ring cover is provided with a connecting ring, the inner ring of the ring cover is provided with a pressing plate edge, and a light-shielding groove is provided between the connecting ring and the pressing plate edge. When the ring cover is matched with the lamp holder, the light-shielding wall is accommodated in the light-shielding groove, the top of the light-shielding wall abuts against the bottom of the light-shielding groove, the pressing plate edge abuts against the prismatic plate, and the inner side wall of the connecting ring abuts against the outer wall of the lamp holder and the bottom wall abuts against the light-shielding edge, so as to form a staggered structure.

[0008] Preferably, the light-shielding wall is provided with a fixing buckle to buckle and limit the prismatic plate.

[0009] Preferably, the outer wall of the lamp holder is provided with a buckle head, the connecting ring of the ring cover is provided with a buckle opening, and the connecting ring of the ring cover is sleeved on the outer wall of the lamp holder to form a snap connection through the buckle head and the buckle opening.

[0010] The anti-dazzle down lamp provided by the utility model ingeniously sets two-stage annular stepped platforms at the lamp holder opening to respectively bear the prismatic plate and the diffusion film, so that the diffusion film and the prismatic plate can be respectively limited, the stepped structure can also form a certain drop to prevent the two from rubbing violently and causing the diffusion film to be displaced and collapsed into the lamp holder opening, the diffusion film at the stepped platform can also be indirectly pressed tightly by the ring cover pressing the prismatic plate through the setting, the whole optical assembly can be stably arranged at the lamp holder opening to reduce the influence on the luminous flux while achieving anti-dazzle, and in the corresponding embodiment, the staggered structure designed between the lamp holder and the ring cover can also effectively avoid the light loss phenomenon caused by light leakage. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the present application illustrated in the drawings and their descriptions are used to explain the present application and are not used to limit the present application. In the drawings:

[0012] Figure 1 It is a schematic diagram of the overall structure of the anti-dazzle down lamp of the utility model;

[0013] Figure 2 It is a schematic diagram of the semi-partial structure of the anti-dazzle down lamp of the utility model;

[0014] Figures 3-4 It is a schematic diagram of the semi-partial assembly structure of the anti-dazzle down lamp of the utility model;

[0015] Figure 5 It is a schematic diagram of the structure of the anti-dazzle down lamp of the utility model on one side in a partial section;

[0016] Figure 6 It is a schematic diagram of the structure of the anti-dazzle down lamp of the utility model on one side provided with a fixing buckle in a partial section.

[0017] Explanation of reference signs

[0018] Lamp holder 1, ring cover 2, light source module 3, optical assembly 4, first-stage stepped platform 11, second-stage stepped platform 12, light-shielding wall 13, light-shielding edge 14, fixing buckle 15, connecting ring 21, pressing plate edge 22, light-shielding groove 23, prismatic plate 41, diffusion film 42. DETAILED DESCRIPTION

[0019] So that the purpose, technical scheme and advantages of the embodiments of the present application are clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the detailed description of the embodiments of the present application provided in the drawings below is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. The terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0023] In addition, the terms "horizontal", "vertical", "overhang" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "lay out," "install," "connect," and "link" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances and in conjunction with existing technology. Furthermore, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. One or more of the components shown in the figures may be necessary or not, and the relative positional relationships between the components shown in the figures can be adjusted according to actual needs.

[0025] To address the glare issue of direct-lit downlights while minimizing the impact on luminous flux, the inventors previously focused on the field of flat panel lights and proposed an "Anti-glare Panel Light" (patent application number: 201821005205.9). This solution did not employ a grid-based anti-glare system but instead used a prism plate, diffuser film, and light guide plate. The prism plate had a cone-shaped surface. When light from the LED light source shone onto the prism plate, the light passed through the prism plate and exited from the cone's surface due to the cone's inclined surface. This altered the LED light source's emission angle and changed the glare value of the anti-glare panel light. The diffuser film diffused the light passing through the cone's surface, and the light guide plate adjusted the light distribution to make the emitted light more uniform.

[0026] Therefore, this type of anti-glare solution has little impact on luminous flux compared to grid-based anti-glare solutions.

[0027] However, research has found that this type of anti-glare solution is structurally only suitable for side-emitting light-emitting schemes that utilize light guide plates for reflection. This is because the diffuser film itself is a relatively soft film, so the presence of the light guide plate can support the diffuser film and form a sandwich structure together with the prism plate. However, if used in a direct-lit light-emitting structure, since there is no light guide plate, it cannot support the diffuser film well. If the existing technology is used to set the prism plate and diffuser film in the direct-lit downlight without the support of a light guide plate, it is easy to cause the diffuser film to collapse, or even collapse into the lamp holder 1.

[0028] Therefore, such as Figures 1-6 As shown, this utility model proposes an anti-glare downlight to solve the problem that the diffuser film in a direct-lit downlight is prone to collapse when there is no light guide plate to support it, and provides a possibility for implementing an anti-glare solution using a prism plate and a diffuser film in a direct-lit downlight.

[0029] Among them, such asFigures 2-4 The anti-dazzle down lamp provided by the utility model, as shown in the examples, comprises a lamp holder 1, a ring cover 2, a light source module 3 and an optical assembly 4, wherein the lamp holder 1 is bowl-shaped, the light source module 3 is arranged in the lamp holder 1 and the light-emitting direction thereof is towards the opening of the lamp holder 1, the optical assembly 4 is arranged at the opening of the lamp holder 1 to perform anti-dazzle processing on the light emitted by the light source module 3, and the ring cover 2 is annular and connected with the lamp holder 1 and covers the opening of the lamp holder 1 to fix the optical assembly 4.

[0030] Specifically, as shown in the examples, the optical assembly 4 comprises a prismatic plate 41 and a diffusion film 42, wherein two annular stepped platforms are arranged on the edge wall of the opening of the lamp holder 1, the prismatic plate 41 and the diffusion film 42 are in the shape of a round sheet, the diameter of the prismatic plate 41 is larger than that of the diffusion film 42, the first stepped platform 11 bears the diffusion film 42, the second stepped platform 12 bears the prismatic plate 41, and the two are arranged in a superposed manner and sealed at the opening of the lamp holder 1. Figures 3-6 It is worth mentioning that, in the traditional concept, the prismatic plate 41 and the diffusion film 42 are generally arranged in a superposed manner and covered at the opening of the lamp holder 1, however, in practice, this way is prone to cause the diffusion film 42 to collapse, because the diffusion film 42 is relatively soft, and thus when assembled, the diffusion film 42 is easily displaced and separated from the support and collapses into the lamp holder 1 due to the strong and large-area friction of the prismatic plate 41.

[0031] Through the design of the two stepped platforms, on the one hand, the prismatic plate 41 and the diffusion film 42 are respectively limited by the stepped platforms, and on the other hand, the height of the stepped platform actually limits the prismatic plate 41 and the diffusion film 42 from being pressed and rubbed with each other violently, thereby avoiding the diffusion film 42 from being displaced and collapsed, and ensuring the reliability of the assembly of the two and the lamp holder 1.

[0032] After the ring cover 2 is connected with the lamp holder 1, the ring cover 2 is capped at the edge of the prismatic plate 41, thereby causing the prismatic plate 41 to be at least capped on the diffusion film 42 at the stepped platform, so that the prismatic plate 41 and the diffusion film 42 can be stably arranged in a superposed state at the opening of the lamp holder 1, thereby avoiding the problem that the diffusion film 42 is easily displaced and collapsed into the lamp holder 1 due to the strong and large-area friction of the prismatic plate 41 during assembly. Furthermore, the lamp has the anti-dazzle effect and reduces the influence on the luminous flux.

[0033] Further, in order to prevent the diffusion film 42 from collapsing and falling off due to shaking or vibration, as shown in the examples, the ring cover 2 is provided with a plurality of annular stepped platforms, the diffusion film 42 is arranged on the first stepped platform 11, the prismatic plate 41 is arranged on the second stepped platform 12, and the third stepped platform 13 is arranged on the diffusion film 42 and the prismatic plate 41.

[0034] Figures 5-6 ​As shown, in an optional embodiment, the height of the secondary stepped platform 12 can be set slightly smaller than the thickness of the diffusion film 42, for example, the diffusion film 42 is designed with a 0.5mm thick plate, and the height of the secondary stepped platform 12 is 0.4mm high, thereby forming a 0.1mm gap. Through this setting, not only can the prismatic plate 41 and the diffusion film 42 still be basically limited by the two stepped platforms, but also the maximum degree of extrusion of the diffusion film 42 by the prismatic plate 41 is limited, so as to strengthen the extrusion degree of the diffusion film 42 without causing the diffusion film 42 to collapse, so that the two can be better stabilized in the stacked state at the opening of the lamp holder 1, preventing the problem of collapse and falling off due to shaking.

[0035] Further, considering that the above example structure may cause light leakage, although it does not affect use, in order to avoid the problem of light loss caused by light leakage, the example as shown Figures 5-6 As shown, the utility model also provides a light leakage prevention structure design.

[0036] Specifically, the stepped platform outside of the lamp holder 1 is provided with a light shielding wall 13, the outer wall of the lamp holder 1 is provided with a light shielding edge 14, the bottom of the ring cover 2 is provided with a connecting ring 21, the inner ring of the ring cover 2 is provided with a pressing plate edge 22, and the light shielding groove 23 is arranged between the pressing plate edge 22 and the connecting ring 21.

[0037] Through this setting, when the ring cover 2 is connected with the lamp holder 1, the light shielding wall 13 can be accommodated through the light shielding groove 23, and the top of the light shielding wall 13 abuts against the bottom of the light shielding groove 23, the pressing plate edge 22 abuts against the prismatic plate 41, and the inner side wall of the connecting ring 21 abuts against the outer wall of the lamp holder 1 and the bottom wall abuts against the light shielding edge 14, thereby forming a staggered structure to solve the problem of light leakage and reduce the light loss of the lamp.

[0038] In addition, in order to further improve the yield of the optical assembly 4 during assembly, for example, Figure 6 As shown, the light shielding wall 13 can be provided with a fixed buckle 15 to buckle and limit the prismatic plate 41, so as to pre-press and limit before the ring cover 2 is assembled, and to ensure that the diffusion film 42 will not be loose and collapsed in the assembly line. When the ring cover 2 is connected with the lamp holder 1, the fixed buckle 15 can be accommodated in the light shielding groove 23 between the pressing plate edge 22 and the connecting ring 21.

[0039] Further, in order to facilitate tool-free assembly of the lamp, in an optional embodiment, the outer wall of the lamp holder 1 can be provided with a buckle head, and the connecting ring 21 of the ring cover 2 can be provided with a buckle opening. Through this setting, the connecting ring 21 of the ring cover 2 is sleeved on the outer wall of the lamp holder 1, and the buckle head and the buckle opening can be connected through buckling.

[0040] In summary, through the anti-dazzle down lamp, the two-stage annular stepped platform is arranged at the opening of the lamp holder 1, the prismatic plate 41 and the diffusion film 42 are respectively loaded, the diffusion film 42 and the prismatic plate 41 can be respectively limited, the stepped structure can also form a certain difference, the problem that the diffusion film 42 is displaced and collapses into the opening of the lamp holder 1 due to the severe friction between the two is prevented, the diffusion film 42 at the stepped platform can be indirectly compressed by the ring cover 2 and the prismatic plate 41, the diffusion film 42 is prevented from collapsing, the whole optical assembly 4 can be stably arranged at the opening of the lamp holder 1, the anti-dazzle effect is realized, and the influence on the luminous flux is reduced. In addition, in the corresponding embodiment, the staggered structure designed between the lamp holder 1 and the ring cover 2 can also effectively avoid the light loss phenomenon caused by light leakage.

[0041] The above disclosed preferred embodiments of the utility model are only used for helping to set forth the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific implementation mode. Apparently, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments, in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0042] In addition, various different embodiments of the utility model embodiments can also be combined arbitrarily, as long as it does not deviate from the spirit and principle of the utility model embodiments, it should also be considered as the disclosed content of the utility model embodiments.

Claims

1. An anti-glare downlight comprising: The lamp holder, ring cover, light source module and optical assembly are characterized in that the optical assembly comprises a prismatic plate and a diffusion film, wherein two-stage annular stepped platforms are arranged on the edge wall of the lamp holder opening to respectively limit and carry the diffusion film and the prismatic plate to be sealed at the lamp holder opening, the light source module is arranged in the lamp holder and has an outgoing light direction towards the lamp holder opening, the ring cover is connected with the lamp holder and is pressed on the edge of the prismatic plate to make the prismatic plate at least pressed on the diffusion film at the stepped platform.

2. The anti-glare downlight of claim 1, wherein, The height of the stepped platform carrying the prismatic plate is slightly smaller than the thickness of the diffusion film.

3. The anti-glare downlight of claim 1, wherein, The outer side of the stepped platform of the lamp holder is provided with a light shielding wall, the outer wall of the lamp holder is provided with a light shielding edge, the bottom of the ring cover is provided with a connecting ring, the inner ring of the ring cover is provided with a pressing plate edge, a light shielding groove is arranged between the pressing plate edge and the connecting ring, when the ring cover is matched with the lamp holder, the light shielding wall is accommodated through the light shielding groove, the top of the light shielding wall abuts against the bottom of the light shielding groove, the pressing plate edge abuts against the prismatic plate, the inner side wall of the connecting ring abuts against the outer wall of the lamp holder and the bottom wall abuts against the light shielding edge to form a staggered joint structure.

4. The anti-glare downlight of claim 3, wherein, The light shielding wall is provided with a fixing buckle to buckle and limit the prismatic plate.

5. The anti-glare downlight of claim 3, wherein, The outer wall of the lamp holder is provided with a buckle head, the connecting ring of the ring cover is provided with a buckle opening, the connecting ring of the ring cover is sleeved on the outer wall of the lamp holder to form a buckle connection through the buckle head and the buckle opening.

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