Area 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, Good visual comfort

Active Publication Date: 2019-07-02
XIANGLING LED
View PDF10 Cites 0 Cited by
  • 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

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Area light source
  • Area light source
  • Area light source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A surface light source, such as figure 1 with image 3 As shown, it includes a cuboid-shaped base 1, a lampshade 2 and a white luminous body 3 arranged in the lampshade 2. A mounting slot 5 is provided in the base 1, and four yellow fluorescent films 4 are arranged in the mounting slot 5. The yellow fluorescent film 4 in parts by weight includes 0.1% of yellow fluorescent powder, 10% of diffusion masterbatch and 89.9% of transparent engineering plastic particles. The particle size of the yellow fluorescent powder is 1 um.

[0039]

[0040] Table 1 compares the data between low blue LED lamps and ordinary LED lamps

[0041] There are 4 winding rollers 6 rotatably arranged around the base 1, and the 4 winding rollers 6 respectively extend to the outside of the base 1. Each piece of yellow fluorescent film 4 is wound on the corresponding winding roller 6 with one end connected to it. The winding rollers 6 are fixed to each other. Two sides of the winding roller 6 are respectiv...

Embodiment 2

[0046] The main difference from the first embodiment is: a surface light source, including a rectangular parallelepiped base 1, a lampshade 2 and a white light-emitting body 3 arranged in the lampshade 2. A mounting groove 5 and a mounting groove 5 are provided in the base 1. There are 4 yellow fluorescent films 4 in it. The yellow fluorescent film 4 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

[0048] The main difference from the first embodiment is: a surface light source, including a rectangular parallelepiped base 1, a lampshade 2 and a white light-emitting body 3 arranged in the lampshade 2. A mounting groove 5 and a mounting groove 5 are provided in the base 1. There are 4 yellow fluorescent films 4 in it. The yellow fluorescent film 4 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.

[0049] The same parts are indicated 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" respectively refer to directions toward or away from the geometric center of a particular component.

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

No PUM Login to view more

Abstract

The invention discloses an area light source, which comprises a baes, a lampshade and a white luminous body arranged in the lampshade, wherein the inner side of the lampshade is provided with a yellowfluorescent film; the yellow fluorescent film is prepared from the following ingredients in percentage by weight: 0.1 to 1.5 percent of yellow fluorescent powder, 10 to 20 percent of diffusion masterbatch and 78.5 to 89.9 percent of transparent engineering plastic particles; the particle diameter of the yellow fluorescent powder is smaller than or equal to 4 mum. The area light source has the advantages of low biological harm value (low blue light radiation intensity and low retina thermal harm value), low glare rate and good visual comfortable degree.

Description

Technical field [0001] The invention relates to a lighting device, and more specifically, it relates to a surface light source. Background technique [0002] With the development of science and technology, the lighting fixtures that people use daily are mainly incandescent lamps and developed into tri-primary fluorescent lamps and LED lighting fixtures. Among them: [0003] Incandescent lamp: Because the incandescent lamp uses metal tungsten wire to emit light, the linear light source emits light, mainly yellow light (low color temperature), and its spectrum is composed of red, green and blue components. When the luminous flux reaches a certain value, due to the small light-emitting area of ​​the line light source, serious glare will be caused. [0004] Three-primary fluorescent lamp: the mercury vapor of the lamp tube is excited by the high-pressure ultraviolet light of the 220v AC rectifier to excite the three-primary color phosphor (red, green, blue) coated on the inner wall of t...

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
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V9/40F21V9/32
CPCF21S8/00F21V9/32F21V9/40
Inventor 吴政明
Owner XIANGLING LED
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap