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LED light fitting reflecting cover

A technology of LED lamps and reflectors, applied in the direction of light sources, reflectors, point light sources, etc., can solve the problems of bright spots and spots in blind spots, low light efficiency utilization, uneven illumination, etc., to achieve wide coverage and high light efficiency. High utilization rate and wide irradiation range

Inactive Publication Date: 2009-09-16
NANKER GUANGZHOU SEMICON MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the defects and insufficiencies of the reflectors of the current LED street lamps, the light efficiency utilization rate is low, the irradiation range is small, and the illuminance is prone to unevenness. Requirements

Method used

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  • LED light fitting reflecting cover
  • LED light fitting reflecting cover
  • LED light fitting reflecting cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as Figure 1 to Figure 6 As shown, the present invention includes a substrate 1, on which a plurality of grooves 2 arranged in an array are arranged, and the surroundings of the grooves 2 are reflective surfaces, and the reflective surfaces include first reflective surfaces opposite to each other laterally. 21 and the second reflective surface 22 and the third reflective surface 23 and the fourth reflective surface 24 that are vertically opposite, the first reflective surface 21 includes four arc-shaped curved surfaces distributed along the longitudinal direction, and the second reflective surface 22 includes three A curved curved surface longitudinally distributed, the curved curved surface of the first reflective surface 21 is a convex surface, the curved curved surface of the second reflective surface 22 is a concave surface, the convex surface and the concave surface are both spherical surfaces, of course, The arc-shaped curved surfaces of the first reflective ...

Embodiment 2

[0025] Such as Figure 7 As shown, the height of the light pole 5 of the LED lamp of the present embodiment is 10 meters, the bottom end of the light pole 5 is located at the edge of the motorway, and the top of the light pole 5 has a horizontal bar protruding in the road and the length is 1 meter. , the lamp is located at the front end of the crossbar, the installation elevation angle of the lamp is γ=15°, the motor vehicle road width is W2=12 meters, there is a sidewalk on each side of the motor vehicle road, its width W1=W3=4 meters, and the total road width is W1 +W2+W3=20 meters. The lateral main luminous angle ε=64° of the reflector of the LED lamp of the present invention, which completely covers the 12-meter motorway, and the redundant angles δ1=9° and δ2=4° cannot illuminate the effective road surface, so this embodiment The utilization rate of the luminous angle is (180°-4°-9°) / 180°=92.8%. It can be seen that the light efficiency utilization rate of this embodiment ...

Embodiment 3

[0028] Such as Figure 9 As shown, in this embodiment, four reflectors of LED lamps are combined together for use in lamps, and there is also a certain angle between the reflectors of LED lamps, and the four reflectors of LED lamps are combined together to form a bent shape , which is more conducive to the adjustment of the light distribution angle and range of the lamp as a whole.

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Abstract

The invention discloses an LED light fitting reflecting cover, which has high light efficiency utilization rate, wide irradiation range and even illuminance. The LED light fitting reflecting cover comprises a matrix (1) which is provided with a plurality of grooves (2) arranged in arrays, the peripheries of the grooves are reflecting planes which comprise a first reflecting plane (21) and a second reflecting plane (22) opposite to each other transversely as well as a third reflecting plane (23) and a fourth reflecting plane (24) opposite to each other longitudinally, and at least one of the reflecting planes is provided with more than one arc-shaped curved surfaces distributed along the longitudinal direction. The LED light fitting reflecting cover can be widely applied in the field of LED light fittings.

Description

technical field [0001] The invention relates to a reflector for an LED lamp. Background technique [0002] As a new type of lighting source, LED is being more and more widely used in various occasions due to its outstanding advantages such as energy saving, environmental protection, high luminous efficiency, and long life. The application of high-power LED light sources in lamps can now be used as large lamps such as street lamps and wall washers. However, when high-power LEDs are used in large lamps such as street lamps, due to the inherent divergence angle of LEDs, in order to improve the overall luminous effect of lamps, it is generally necessary to install reflectors for light distribution. Due to the defects and insufficiencies of the reflectors of the current LED street lamps, the light efficiency utilization rate is low, the irradiation range is small, and the illuminance is prone to unevenness. Requirements. Contents of the invention [0003] The technical probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/09F21Y101/02F21Y115/10
Inventor 吴俊纬
Owner NANKER GUANGZHOU SEMICON MFG
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