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Coating composition for forming light scattering layer, optical member, light cover, and light fixture

A technology of light diffusion layer and optical components, which is applied in the field of optical components, lighting covers and lighting appliances, can solve problems such as difficult to recognize LED lighting, and achieve excellent light transmission and light diffusion effects

Inactive Publication Date: 2017-09-15
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, due to the strong directivity of the LED light source, it is also necessary to impart light diffusion to the optical components, making it difficult to recognize that the light source of the LED lighting is a point light source.

Method used

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  • Coating composition for forming light scattering layer, optical member, light cover, and light fixture
  • Coating composition for forming light scattering layer, optical member, light cover, and light fixture
  • Coating composition for forming light scattering layer, optical member, light cover, and light fixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] 100 parts by mass of resin particles were added with respect to 100 parts by mass of solid content of the translucent resin. As the translucent resin, ACRYDIC (registered trademark) WAL-578 manufactured by DIC Corporation was used. In addition, the refractive index of ACRYDIC (registered trademark) WAL-578 is 1.49. In addition, KTL-1N manufactured by Kitamura Co., Ltd. was used as the resin particles. In addition, KTL-1N is a polytetrafluoroethylene-based resin with a refractive index of 1.35 and an average particle diameter of 2 μm.

[0062] Further, in order to disperse the resin particles, 50 parts by mass of BYK Chemie dispersant DISPERBYK (registered trademark) 142 was added with respect to 100 parts by mass of the resin particles. Moreover, the mixture was diluted with propylene glycol monomethyl ether acetate so that the solid content of the whole may become 20 mass %. The diluted solution was stirred with ultrasonic waves until the solid components were unifo...

Embodiment 2

[0067] A lighting fixture was produced in the same procedure as in Example 1 except that 150 parts by mass of resin particles was added with respect to 100 parts by mass of solid content of the translucent resin.

Embodiment 3

[0069] A lighting fixture was produced by the same procedure as in Example 1 except having added 233 parts by mass of resin particles with respect to 100 parts by mass of solid content of the translucent resin.

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Abstract

A coating composition for forming a light scattering layer includes a light transmitting resin containing an acrylic resin, and resin particles containing a fluororesin having a refractive index of 1.40 or less. The resin particles are contained in the amount of 100 to 400 parts by mass per 100 parts by mass of the light transmitting resin on a solids basis.

Description

technical field [0001] This indication relates to the coating composition for light-diffusion layer formation, an optical member, a lighting cover, and a lighting fixture. In more detail, this indication relates to the coating composition for light-diffusion layer formation excellent in translucency and light-diffusion property, and the optical member, lighting cover, and lighting fixture which used this coating composition for light-diffusion layer formation. Background technique [0002] A lighting fixture generally includes a lighting cover that covers a light source unit. Usually, this lighting cover is formed using an optical member having translucency and light diffusivity. By using such a light-transmitting and light-diffusing lighting cover, light irradiated from the light source can be diffused over the entire surface of the light-transmitting surface of the lighting cover. As a result, the amount of light transmitted per unit area can be made uniform over the ent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D127/18G02B5/02F21V5/08
CPCC08L2201/10C08L2203/20C09D133/00F21V5/08G02B5/02C08L27/18C09D5/00F21V3/12F21Y2115/10
Inventor 重野纮辉内山修平
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD