Multilayer optical thin film and manufacturing method thereof

A technology of optical film and manufacturing method, applied in optics, optical components, instruments, etc., to achieve the effect of improving optical performance

Inactive Publication Date: 2015-03-25
四川东方绝缘材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Multilayer optical thin film and manufacturing method thereof
  • Multilayer optical thin film and manufacturing method thereof
  • Multilayer optical thin film and manufacturing method thereof

Examples

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Embodiment 1

[0042] The basic process of preparing multilayer optical film (visible light total reflection function):

[0043] According to the total thickness and functional requirements of the multilayer optical film, adjust and determine the × material layer of the splitter die C, the number of layers of the extrusion notch of the material layer and the opening of the extrusion notch, and the weighed × material, ●Materials are fed into 1# extruder and 2# extruder respectively, and after melting at 150~300℃, they are extruded through the extrusion port A or the extrusion port B of the 1# extruder and 2# extruder respectively and enter the splitter The pipeline of × material or ● material in the flow divider die head C respectively passes through the extrusion notch of × material layer and ● material layer, and co-extrudes to form a thick sheet composed of multiple layers. The thick sheet is stretched longitudinally , the stretch ratio is 1 to 100 times, and the stretched sheet is cooled ...

Embodiment 2

[0050] The basic process of preparing multilayer optical film (ultraviolet light total reflection function):

[0051] According to the total thickness and functional requirements of the multilayer optical film, adjust and determine the × material layer of the splitter die C, the number of layers of the extrusion notch of the material layer and the opening of the extrusion notch, and the weighed × material, ●Materials are fed into 1# extruder and 2# extruder respectively, and after melting at 150~300℃, they are extruded through the extrusion port A or the extrusion port B of the 1# extruder and 2# extruder respectively and enter the splitter The pipeline of × material or ● material in the flow divider die head C respectively passes through the extrusion notch of × material layer and ● material layer, and co-extrudes to form a thick sheet composed of multiple layers. The thick sheet is stretched longitudinally , the stretch ratio is 1 to 100 times, and the stretched sheet is coo...

Embodiment 3

[0056] Basic preparation process of 550nm green light multilayer optical film (function of filtering 550nm green light):

[0057] According to the total thickness and functional requirements of the multilayer optical film, adjust and determine the × material layer of the splitter die C, the number of layers of the extrusion notch of the material layer and the opening of the extrusion notch, and the weighed × material, ●Materials are put into 1# extruder and 2# extruder respectively, and after melting at 200~300℃, they are extruded through the extrusion port A or the extrusion port B of the 1# extruder and 2# extruder respectively and enter the splitter The pipes of × material or ● material in the flow divider die head C respectively pass through the extrusion slots of × material layer and ● material layer, and co-extrude to form a thick sheet composed of multiple layers. The rollers are cooled to 25-60°C, stretched longitudinally after a preheating section at 80°C-160°C, and t...

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Abstract

The invention discloses a multilayer optical thin film and a manufacturing method of the multilayer optical thin film. The multilayer optical thin film is characterized in that the thin film is formed by compounding one to 10,000 optical thin film units, and the thickness is 0.11 micron to 5,000 microns; each optical thin film unit is formed by compounding a layer of * material thin film and a layer of . material thin film, the thickness speciation of the * material thin films is 0.053 micron to one micron, and the thickness speciation of the . material thin films is 0.053 micron to one micron; the * material thin film and the . material thin film in the same optical thin film unit are different in refractive index. The multilayer optical thin film is manufactured in the mode of carrying out multilayer coextrusion through two extruders and then carrying out unidirectional or bidirectional stretching. The multilayer optical thin film has the functions of totally reflecting visible light and ultraviolet light, filtering 550nm green light and the like, and can be applied to manufacturing of building curtain wall reflecting thin films, automobile glass sticker thin films and reflecting telescopes.

Description

technical field [0001] The invention belongs to an optical film and its preparation, and relates to a multilayer optical film and a manufacturing method thereof. The present invention is a multi-layer optical film made of two kinds of transparent polymeric materials with different refractive indices after repeated stacking. The film can reflect or transmit light of different bands such as visible light and ultraviolet light or monochromatic light of a certain wavelength It is used in the manufacture of building curtain wall reflective film, automotive glass film and reflective telescope. Background technique [0002] Mirrors generally consist of a substrate and a reflective film. The traditional base material is generally a rigid material with stable shape such as metal, glass, crystal, etc. Its main disadvantage is that it has a large mass, and it is difficult, costly, and long-term to make a large-sized reflector. Replacing the base with a transparent film material can s...

Claims

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Application Information

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IPC IPC(8): G02B1/10G02B1/04B29C47/06B29C55/14B29C69/00
CPCG02B1/10B29C48/0018B29C48/21B29C55/14G02B1/04
Inventor 马雅琳赵贵红梁倩倩胡俊祥罗春明李建学
Owner 四川东方绝缘材料股份有限公司
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