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Diffuse reflection coating and reflector with the same

A diffuse reflection and reflector technology, applied in the field of reflectors, can solve the problems of low reflection efficiency, aging, insufficient temperature resistance, etc.

Inactive Publication Date: 2013-06-12
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing coated diffuse reflection reflectors, the surface coating is generally white paint, enamel, etc., the reflection efficiency is low, generally lower than 80%
Moreover, the heat resistance is not good, and generally it can only work in an environment below 80°C.
Most of the reflectors need to work at a temperature of 100°C or above, such as reflectors used in tungsten-halogen lamps, metal halide lamps, and high-pressure sodium lamps. Reflectors will struggle to meet the requirements
[0005] In addition, in the existing coated diffuse reflection reflector, on the one hand, it is necessary to use a relatively high content of reflective particles, such as more than 60%, so as to ensure that the coating has a high reflectivity; on the other hand, Due to the high content of reflective particles and insufficient adhesion of the substrate, there is often a problem of insufficient bonding between the diffuse reflective coating and the reflector substrate
For example, some diffuse reflection coatings use binder resin as the base material, but this binder resin has insufficient temperature resistance, and its surface is prone to yellowing and aging at higher temperatures, resulting in cracks and lower reflectivity

Method used

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  • Diffuse reflection coating and reflector with the same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of the above-mentioned diffuse reflective paint is as follows: using organic silicon resin as primer, adding titanium dioxide filtered through molecular sieves, and fully mixing to make it into a suspended solution. Then add a predetermined proportion of additives and mix thoroughly again to obtain the above-mentioned diffuse reflection coating.

[0026] In this embodiment, the diffuse reflective coating can be made into granular or powdery form, and is directly sprayed on the surface of the object during application. This granular or powdery coating is convenient for packaging, storage and transportation, etc., and the construction is also relatively convenient.

[0027] see figure 1 , shows a reflector 10 employing the above coating. The light reflector 10 includes a substrate 1 and a diffuse reflection coating 2 , and the diffuse reflection coating 2 is formed on the surface of the substrate 1 . The material of the substrate 1 can be but not...

Embodiment 1

[0034] The diffuse reflection coating of the present embodiment comprises polyalkylene silicone resin, anatase titanium dioxide, leveling agent, defoamer, and leveling agent is polyester modified silicone solution, and defoamer is polysiloxane solution, Its composition ratio is (by mass percentage):

[0035] Polyalkyl silicone resin 45.5%

[0036] Anatase Titanium Dioxide 53%

[0037] Leveling agent 0.7%

[0038] Defoamer 0.8%.

[0039] The paint was applied to a light reflector, the thickness of the coating was 0.4mm, and the reflectance of the coating was measured to be 93%.

Embodiment 2

[0041] The diffuse reflection coating of the present embodiment comprises polyaryl silicone resin, anatase titanium dioxide, leveling agent, defoamer, and leveling agent is fluorine-modified polyacrylate, and defoamer is foam-breaking polymer polysiloxane Alkane, its composition ratio is (by mass percentage):

[0042] Polyaryl silicone resin 48%

[0043] Anatase Titanium Dioxide 50%

[0044] Leveling agent 1%

[0045] Defoamer 1%.

[0046] The paint was applied to the reflector, the thickness of the coating 2 coated with the paint was 0.5mm, and the reflectance of the coating was measured to be 90%.

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Abstract

The invention provides a diffuse reflection coating, comprising the following components with the by mass percent: 35 percent to 55 percent of organic silicon resin, 40 percent to 60 percent of anatase titanium dioxide and 1 percent to 5 percent of auxiliary agent, wherein the organic silicon resin adopts silicon resin which can resist the temperature of 100-120 DEG C. The invention also providesa reflector with the diffuse reflection coating. In the diffuse reflection coating, the organic silicon resin which can resist the temperature of 100-120 DEG C is selected, then a proper amount of anatase titanium dioxide is added so as to lead the diffuse reflection coating to be capable of normally working under the temperature of about 100 DEG C or above 100 DEG C, yellowing and aging are not easily to occur under high temperature, cracks are not generated, and stronger adhesive force is generated with a base body. In addition, the anatase titanium dioxide can lead the coating to show highreflectance, can not lead the reflectance to be reduced, and has wide application prospect.

Description

technical field [0001] The invention belongs to the technology of optical devices, and in particular relates to a diffuse reflection coating suitable for high-temperature environments and a light reflector with the diffuse reflection coating. Background technique [0002] Optical devices have been widely used in various fields of production and life. For example, light sources, lamps, display devices, etc. Among them, the most widely used lamps are usually equipped with a reflector in order to improve the lighting effect. In fact, reflectors are usually applied to lamps, but their application scope is not limited to lamps. For example, reflectors can be used in some backlight devices and flat panel display devices. [0003] Reflectors can be roughly divided into diffuse reflection reflectors and specular reflection reflectors according to the reflection method. Diffuse reflection reflectors can be divided into the following two types according to the surface treatment met...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04C09D5/33F21V7/22
Inventor 周明杰熊慧珺
Owner OCEANS KING LIGHTING SCI&TECH CO LTD