CN213146328U - Rear projection flat lamp with UGR smaller than 19 - Google Patents
Rear projection flat lamp with UGR smaller than 19 Download PDFInfo
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- CN213146328U CN213146328U CN202022477284.7U CN202022477284U CN213146328U CN 213146328 U CN213146328 U CN 213146328U CN 202022477284 U CN202022477284 U CN 202022477284U CN 213146328 U CN213146328 U CN 213146328U
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Abstract
A rear projection flat lamp with UGR less than 19 is mainly designed in that a concave-convex diamond mirror plate with multiple rhombuses on one side is arranged on the surface layer of the light emitting surface of the rear projection flat lamp to shrink the light emitting angle of the rear projection flat lamp to realize the design requirement that UGR is less than 19, and is characterized by comprising the following steps: screw (1), integrative tensile back lid (2), LED lamp strip (3), lens (4), diffuser plate (5), unsmooth diamond mirror board (6), aluminium frame (7), butt joint (8), LED drive (9).
Description
Technical Field
A rear projection flat lamp with UGR less than 19 is mainly used for indoor office lighting to control glare.
Background
At present, most of lighting lamps on a ceiling grid of an indoor office are rear projection flat lamps and side light emitting flat lamps, UGR is larger than 19, the lamps are applied to office places for a long time, eye visual fatigue can be caused, eyesight can be damaged, symptoms such as nerve decay and crack can be seriously caused, if one lamp with UGR smaller than 19 is used, the problems can be avoided, and therefore, the technical research and development of the conventional rear projection flat lamps can meet the anti-dazzle function, and the anti-dazzle function has research and development values.
SUMMERY OF THE UTILITY MODEL
The invention relates to a rear projection flat lamp with UGR less than 19, which is mainly designed in that a concave-convex rhombus lens with multiple rhombus on one side is arranged on the outermost surface layer of the light emitting surface of a lamp, and the design requirement that the UGR is less than 19 is realized by contracting the light emitting angle of the rear projection flat lamp, and the rear projection flat lamp has the characteristics of low cost and easy realization.
Drawings
Fig. 1 is a structural diagram of the whole rear projection flat lamp of the present invention with UGR less than 19.
The parts in the drawings are numbered as follows: screw (1), integrative tensile back lid (2), LED lamp strip (3), lens (4), diffuser plate (5), unsmooth diamond mirror board (6), aluminium frame (7), butt joint (8), LED drive (9)
Detailed Description
The specific technical scheme of the invention is as follows:
a rear projection flat panel lamp having UGR less than 19, comprising: screw (1), integrative tensile back lid (2), LED lamp strip (3), lens (4), diffuser plate (5), unsmooth diamond mirror board (6), aluminium frame (7), butt joint (8), LED drive (9).
The structure of the LED lamp is summarized in that the integrally stretched rear cover (2) is fixed on an aluminum frame (7) through the screw (1), the diffusion plate (5) is arranged between the integrally stretched rear cover (2) and the concave-convex diamond mirror plate (6), the concave-convex diamond mirror plate (6) is arranged between the diffusion plate (5) and the aluminum frame (7), the butt joint (8) is fixed on one side surface of the integrally stretched rear cover (2), the lens (4) is fixed on the LED lamp strip (3), the LED lamp strip (3) is fixed at the inner bottom of the integrally stretched rear cover (2), the LED driver (9) is connected with the butt joint (8), and the butt joint (8) is welded with the LED lamp strip (3).
The preferable characteristics are as follows: one side of the concave-convex diamond mirror plate (6) is a multi-diamond concave-convex diamond mirror plate, the other side of the concave-convex diamond mirror plate is a smooth surface, the diamond mirror surface of the concave-convex diamond mirror plate (6) is a light emitting surface of a lamp, the smooth surface faces the diffusion plate (5), and the concave-convex diamond mirror plate (6) and the diffusion plate (5) are matched together for use.
The preferable characteristics are as follows: lens (4) are a 180 luminous planar lens, lens (4) periphery shape is circular, lens (4) top is the oblate spheroid, lens (4) bottom is plane and the positive center has oval shrinkage pool.
The preferable characteristics are as follows: the LED lamp strip (3) is an aluminum substrate, a plurality of LEDs are pasted on the aluminum substrate, the LEDs on the LED lamp strip (3) are covered by a lens (4), and the LED lamp strip (3) is fixed at the inner bottom of the integrally stretched rear cover (2) through heat-conducting silica gel.
The preferable characteristics are as follows: the drawing die is characterized in that the integrally-drawn rear cover (2) is an iron plate, four sides of the integrally-drawn rear cover (2) are inclined planes and 4 corners of the integrally-drawn rear cover are arc-shaped through drawing and stamping of a die, a wire outlet hole is formed in one side of the integrally-drawn rear cover (2), a screw hole is formed in flanging treatment and flanging design of the opening surface of the integrally-drawn rear cover (2), and the surface of the integrally-drawn rear cover (2) is high-reflectivity baking finish.
The preferable characteristics are as follows: the diffusion plate (5) is a fog white light diffusion plate, a diffusion agent is added into a plate, and the surface of the diffusion plate (5) is frosted.
The preferable characteristics are as follows: the aluminum frame (7) is formed by welding after aluminum profile cutting, and the surface is free of gap due to high-temperature paint and 4-angle welding.
The preferable characteristics are as follows: the LED driving device is characterized in that the DC output end of the LED driving device (9) is provided with a joint, the LED driving device (9) is output by constant current or constant voltage, and the LED driving device (9) is in butt joint with the butt joint (8) and supplies power to the lamp.
Fig. 1 shows a block diagram of parts.
Claims (4)
1. A rear projection flat lamp with UGR smaller than 19 is characterized by comprising a screw (1), an integrally stretched rear cover (2), an LED lamp bar (3), a lens (4), a diffusion plate (5), a concave-convex diamond mirror plate (6), an aluminum frame (7), a butt joint (8) and an LED driver (9); the LED stretching and fixing device is characterized in that the integrally stretched rear cover (2) is fixed on an aluminum frame (7) through the screw (1), the diffusion plate (5) is arranged between the integrally stretched rear cover (2) and the concave-convex diamond mirror plate (6), the concave-convex diamond mirror plate (6) is arranged between the diffusion plate (5) and the aluminum frame (7), the butt joint (8) is fixed on one side surface of the integrally stretched rear cover (2), the lens (4) is fixed on the LED lamp strip (3), the LED lamp strip (3) is fixed at the inner bottom of the integrally stretched rear cover (2), the LED driver (9) is connected with the butt joint (8), and the butt joint (8) and the LED lamp strip (3) are welded.
2. The flat rear-projection lamp of claim 1, wherein the concavo-convex rhombus mirror plate (6) is a rhombus multi-diamond concavo-convex rhombus mirror plate and is manufactured by master batch true color processing.
3. A rear projection flat lamp with UGR less than 19 according to claim 1, wherein the concavo-convex rhombus mirror plate (6) has one side of a rhombus-shaped concavo-convex rhombus mirror plate and the other side of a smooth surface, and the rhombus mirror surface is the light emitting surface of the rear projection flat lamp, and the smooth surface faces the diffuser plate.
4. A rear projection flat panel lamp having UGR less than 19 according to claim 1, wherein UGR is less than 19 by using a rhomboid polygon mirror plate and a diffuser plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022477284.7U CN213146328U (en) | 2020-11-02 | 2020-11-02 | Rear projection flat lamp with UGR smaller than 19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022477284.7U CN213146328U (en) | 2020-11-02 | 2020-11-02 | Rear projection flat lamp with UGR smaller than 19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213146328U true CN213146328U (en) | 2021-05-07 |
Family
ID=75721916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022477284.7U Active CN213146328U (en) | 2020-11-02 | 2020-11-02 | Rear projection flat lamp with UGR smaller than 19 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213146328U (en) |
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2020
- 2020-11-02 CN CN202022477284.7U patent/CN213146328U/en active Active
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