Light distribution device of LED (light-emitting diode) light source
A technology of LED light source and light distribution, applied in the direction of light source, point light source, lighting device, etc., can solve the problems of insufficient uniform illumination and narrow illumination angle of LED light source, and achieve the effect of uniform illumination and enlarged emission angle.
Inactive Publication Date: 2011-05-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF5 Cites 17 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the light emitting angle of the LED light source is narrow, and the light distribution through the lens can only expand the irradiation range in a small range, and the illumination is not uniform enough
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0012] Please also refer to figure 1 and figure 2 , the light distribution device 10 includes a light emitting element 20 , a reflective element 30 and a lens 40 . The lens 40 is fixed on the light emitting element 20 , and the reflective element 30 is located between the lens 40 and the light emitting element 20 .
[0013] The light emitting element 20 is a flat cylinder with a through hole 22 formed in the center thereof. Please also see image 3 , the light-emitting element 20 is fixed on the circuit board 60 on which the LED light source 50 is installed, and can be fixed by means of bonding, screwing, buckling and the like. The through hole 22 accommodates the LED light source 50 . The end face of the light exiting member 20 facing the lens 40 is recessed to form a plurality of annular and inclined reflecting parts 24, the cross section of the reflecting part 24 is roughly V-shaped, and the plurality of reflecting parts 24 have different inclinations relative to the b...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a light distribution device of an LED (light-emitting diode) light source. The device comprises a lens, a light emitting member and a reflecting member, wherein the lens is fixed on the light emitting member; the reflecting member is fixed on the lens and positioned between the lens and the light emitting member; a bulge is formed on the end surface of the reflecting member back to the lens; a through hole for containing the LED light source is formed on the light emitting member; the end surface of the light emitting member facing the lens sinks to form multiple annular reflecting parts oblique relative to the bottom surface of the light emitting member; the bulge is used for reflecting the light from the LED light source at a pre-determined incidence angle to the reflecting part; and the reflecting part is used for reflecting all lights emitted to the reflecting part onto the lens. Through the light distribution device of the LED light source, the light reflecting angle is expanded, and the illumination is more uniform.
Description
technical field [0001] The invention relates to a light distribution device, in particular to an LED light source light distribution device. Background technique [0002] Compared with traditional light sources, LED light sources have the advantages of low energy consumption, high luminous efficiency, long life, and environmental protection, and have been widely used in lighting fixtures such as roads, tunnels, and landscapes. The smaller luminous point and more concentrated light intensity of the LED light source make the irradiation range smaller. Therefore, in the existing LED lamps, a lens is installed in front of the LED light source, and the light distribution is performed through the lens, so that the light is scattered, the irradiation range is expanded, and the uniformity of the light is increased. However, the light emitting angle of the LED light source is narrow, and the light distribution through the lens can only expand the irradiation range in a small range, ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21V7/04F21V17/12F21Y101/02
CPCF21Y2101/02F21V7/0041F21V7/0008F21Y2115/10
Inventor 章绍汉
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD