Multi-layer coating-film new technology of optical part

A technology of optical parts and new technology, which is applied in the direction of optical components, optics, instruments, etc., can solve the problems of high cost and unsatisfactory anti-reflection effect, and achieve the effect of saving cost and improving anti-reflection effect

Inactive Publication Date: 2012-09-26
JIANGSU SHUANGYI OPTICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The common process of optical lens coating includes vacuum pumping process and coating process. In order to meet the requirements of anti-reflection, MgF is commonly used for coating. 2 and H 4 For plating material, a layer of MgF 2 Layer H 4 In this way, in order to meet the requirements of wide-wavelength anti-reflection (400-700nm R≤0.4%; 700-750nm R≤1.3%), it is usually necessary to coat 7-9 layers, which is costly and the anti-reflection effect is not ideal.

Method used

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Examples

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Embodiment 1

[0008] A new multi-layer coating process for optical parts, comprising a vacuuming process and a coating process, characterized in that: the coating process of the coating process is six layers, the first layer is H 4 , the second layer is AL 2 o 3 , the third layer is H 4 , the fourth layer is AL 2 o 3 , the fifth layer is H 4 , the sixth layer is MgF 2 .

[0009] The index of the anti-reflection film of the optical lens made by the new process of multi-layer coating of optical parts of the present invention is: 400-700nm R=0.3-0.35%; 700-750nm R≤1.0%

Embodiment 2

[0011] A new multilayer coating process for optical parts as in Embodiment 1, the difference lies in that the initial values ​​of the film thickness of each coating layer are: 0.5, 0.5, 1, 0.5, 0.5, 1 respectively.

Embodiment 3

[0013] A new multi-layer coating process for optical parts with the first embodiment, the difference is that the initial vacuum degree of the vacuuming process is 4.5*10 -4 Pa-7.0*10 -4 Pa (at 4.5*10 -4 Pa and 7.0*10 -4 Any initial vacuum between Pa will do). Normally, it is 3.0*10 -3 Pa.

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PUM

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Abstract

The invention relates to a multi-layer coating-film new technology of an optical part. The new technology comprises a vacuum-pumping process and a coating-film process. The new technology is characterized in that: a coating of the coating-film process comprises six layers, wherein a first layer is H4, a second layer is Al2O3, a third layer is H4, a fourth layer is Al2O3, a fifth layer is H4 and a sixth layer is MgF2. The new technology of the invention has the following advantages that: because of using the H4, the Al2O3 and the MgF2 as a coating material, only six layers can achieve a wide wave field minus reflection requirement; cost can be saved and a minus reflection effect can be increased.

Description

technical field [0001] The invention relates to a coating process for optical parts, in particular to a new multi-layer coating process for optical lenses. Background technique [0002] The common process of optical lens coating includes vacuum pumping process and coating process. In order to meet the requirements of anti-reflection, MgF is commonly used for coating. 2 and H 4 For plating material, a layer of MgF 2 Layer H 4 Such superimposition, in order to meet the requirement of wide-band anti-reflection (400-700nm R≤0.4%; 700-750nm R≤1.3%), usually requires 7-9 layers of coating, which is costly and the anti-reflection effect is not ideal. Contents of the invention [0003] In view of the above existing problems, the present invention provides a new multi-layer coating process for optical parts, through the change of coating material and coating layer, the purpose of saving cost and improving anti-reflection effect is achieved. [0004] The present invention adopts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/10G02B1/115
Inventor 马云燕
Owner JIANGSU SHUANGYI OPTICAL INSTR
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