Surface light source

A surface light source and yellow fluorescent technology, applied in the field of surface light source, can solve the problems of small luminous area of ​​line light source, high photobiological hazard value, and large photoradiation hazard, so as to reduce the value of photobiological hazard index, improve visual comfort, Improve the effect of lighting effects

Active Publication Date: 2021-06-29
XIANGLING LED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the luminous flux reaches a certain value, the light-emitting area of ​​the line light source is small, which will cause serious glare
[0004] Tri-primary fluorescent lamp: By exciting the mercury vapor of the lamp tube with high-voltage ultraviolet light from a 220v AC rectifier, the tri-primary phosphor powder (red, green, blue) coated on the inner wall of the lamp tube is excited to form a white light source, and its spectrum combination is red, green and blue. Composition of ingredients, but its light radiation is harmful, the glare is severe, the photobiological hazard is relatively large, and the blue light radiation is relatively high
[0006] Through the understanding of the light emitting principles of the above-mentioned incandescent lamps, tri-color fluorescent lamps, and LED lighting fixtures, there are obvious deficiencies such as glare and excessively high photobiological hazard values.

Method used

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  • Surface light source
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A surface light source such as figure 1 and image 3 As shown, it includes a rectangular parallelepiped base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, and a mounting groove 5 is provided in the base 1, and 4 pieces of yellow fluorescent films 4 are arranged in the mounting groove 5, according to Components in parts by weight The yellow fluorescent film 4 includes 0.1% yellow fluorescent powder, 10% diffusion masterbatch and 89.9% transparent engineering plastic particles, and the particle size of the yellow fluorescent powder is 1um.

[0029]

[0030] Table 1 is the data comparison between low blue light LED lamps and ordinary LED lamps

[0031] Four winding rollers 6 are rotated around the base 1, and the four winding rollers 6 are respectively extended to the outside of the base 1. Each yellow fluorescent film 4 is wound on the corresponding winding roller 6 and one end is connected to The winding rollers 6 are fixed to each other....

Embodiment 2

[0036]The main difference from Embodiment 1 is: a surface light source, including a cuboid base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, and a mounting groove 5 is provided in the base 1, and the mounting groove 5 There are 4 pieces of yellow fluorescent film 4 inside, and the yellow fluorescent film 4 described in parts by weight includes 1% yellow fluorescent powder, 15% diffusion masterbatch and 84% transparent engineering plastic particles, yellow fluorescent powder The particle size is 2um.

Embodiment 3

[0038] The main difference from Embodiment 1 is: a surface light source, including a cuboid base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2, and a mounting groove 5 is provided in the base 1, and the mounting groove 5 There are 4 pieces of yellow fluorescent film 4 inside. The yellow fluorescent film 4 described in parts by weight includes 1.5% yellow fluorescent powder, 20% diffusion masterbatch and 78.5% transparent engineering plastic particles, yellow fluorescent powder The particle size is 3um.

[0039] Wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom" and "top "Face", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

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PUM

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Abstract

The invention discloses a surface light source, which comprises a base, a lampshade and a white luminous body arranged inside the lampshade. A yellow fluorescent film is arranged on the inner side of the lampshade. The yellow fluorescent film includes 0.1% by weight ~1.5% of yellow phosphor, 10%~20% of diffusion masterbatch and 78.5%~89.9% of transparent engineering plastic particles, the particle size of the yellow phosphor is ≤4um. The surface light source has low photobiological hazard value (low blue light radiation intensity, low retinal thermal hazard value), low glare value, and good visual comfort.

Description

technical field [0001] The present invention relates to a lighting device, more specifically, it relates to a surface light source. Background technique [0002] With the development of science and technology, the lighting fixtures used by people in daily life are mainly developed from incandescent lamps to three-color fluorescent lamps and LED lighting fixtures, among which: [0003] Incandescent lamp: Because incandescent lamps use metal tungsten filaments to energize and emit light, line light sources emit light, mainly yellow light (low color temperature), and its spectral combination is composed of red, green and blue components. When the luminous flux reaches a certain value, the light-emitting area of ​​the line light source is small, which will cause serious glare. [0004] Tri-primary fluorescent lamp: By exciting the mercury vapor of the lamp tube with high-voltage ultraviolet light from a 220v AC rectifier, the tri-primary phosphor powder (red, green, blue) coate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V9/40F21V9/32
CPCF21S8/00F21V9/32F21V9/40
Inventor 吴政明
Owner XIANGLING LED
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