Optical antireflection film and preparation method thereof, and optical assembly

An optical anti-reflection coating and monomer technology, applied in the coating and other directions, can solve the problems of increasing the complexity and cost of the process, and not being cost-effective, and achieve the effect of improving light transmittance, easy control, and reducing refractive index

Active Publication Date: 2014-10-15
SAINT-GOBAIN GLASS FRANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technical solution increases the complexity and cost of the process, so it is not cost-effective

Method used

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  • Optical antireflection film and preparation method thereof, and optical assembly
  • Optical antireflection film and preparation method thereof, and optical assembly
  • Optical antireflection film and preparation method thereof, and optical assembly

Examples

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preparation example Construction

[0100] In the specific example of the method for preparing an optical anti-reflection coating provided in one aspect of the present invention, preferably in the first step, hollow microparticles with a hollow structure such as silicon dioxide particles are added to the mixture to further increase the obtained The porosity of the optical anti-reflection coating can reduce the refractive index of the optical anti-reflection coating and improve the light transmission of the optical anti-reflection coating. Wherein, during the preparation process, the content of the hollow microparticles is equivalent to 1-7wt%, preferably 3-7wt%, of the total amount of the first and second monomers. In the prepared optical anti-reflection film, the content of the hollow fine particles is preferably 1-10 wt% of the dry weight of the film. If the content of the hollow fine particles is too small (less than 1wt%), it will not substantially improve the light transmittance of the anti-reflection coati...

Embodiment 1

[0106] Mix 2.72g of MTMS (purity 95%), 13.44g of hydrochloric acid (1mol / L), 15.64g of ethanol (purity 95%), stir at 60°C for 90 minutes; then slowly drop 0.54g of BTMSE ( Purity 98%) continue to stir for 30 minutes, and after standing for 10 minutes, a coating solution is formed for use. The above-mentioned coating solution was coated on the surface of a clean glass sheet by spin coating, and the thickness was controlled to be about 150 nm. Put the coated glass sheet into an oven at 120°C for 100 minutes for pre-curing, and then cure at 400°C for 15 minutes. Obtain an optical anti-reflection film with a thickness of 95nm.

Embodiment 2

[0110] Mix 1.36g of MTMS (purity 95%), 8.00g of sulfuric acid (0.5mol / L), 9.12g of isopropanol (purity 95%), and stir at 75°C for 45 minutes; then maintain the above temperature and slowly 0.54 g of BTMSE (purity 98%) was added dropwise and stirred for 80 minutes, and then left to stand for 15 minutes for use. The above-mentioned coating solution was coated on the surface of a clean glass sheet by the spin coating method, and the thickness was controlled to be about 200nm. Put the coated glass sheet into an oven at 100°C for pre-curing for 200 minutes, and then cure at 300°C for 45 minutes. Obtain an optical anti-reflection film with a thickness of 135nm.

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Abstract

The invention provides an optical antireflection film and a preparation method thereof, and an optical assembly. With application of the preparation method of the optical antireflection film provided by one aspect of the invention, compounds indicated by the structural formula of (R1O)3Si-R2 and the structural formula of (R3O)3-Si-Cm-Si-(R4O)3 act as comonomers so that the antireflection film comprising copolymer with repeating units of (img file='DDA00003007694400011.TIF' wi='386' he='136' /) is acquired. Therefore, refractive index of the antireflection film is reduced, light transmittance is enhanced, hardness of the antireflection film and adhesiveness of the antireflection film and base material are enhanced, and optical performance of photoelectric and optical elements is greatly enhanced.

Description

technical field [0001] The invention relates to optical devices, in particular to an optical anti-reflection film for the surface of a transparent or opaque substrate, a method for preparing the optical anti-reflection film and an optical component. Background technique [0002] Optical anti-reflection coating, also known as optical anti-reflection coating, can effectively reduce the light reflection caused by the surface of the product and increase the optical transmittance. Therefore, optical anti-reflection coatings are often coated on the surface of optical and photoelectric components to reduce the light reflection on the surface of the component and the resulting loss of light energy. For example, in the field of optical products such as lenses and image display instruments such as computer displays, the use of optical anti-reflection coatings can effectively improve image visibility; in the field of solar cells, glass coated with optical anti-reflection coatings can e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/11C08G77/50
Inventor 付爽吕鑫张磊
Owner SAINT-GOBAIN GLASS FRANCE
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