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Fabricating method of gradual neutral density filter

A technology with neutral density and production method, which is applied in the direction of optical filters, optics, optical components, etc., can solve the problems of high cost, slow delivery speed, long design and experiment cycle, etc., and achieve high production efficiency and low production cost Effect

Active Publication Date: 2019-03-22
SHENYANG ACAD OF INSTR SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the present invention discloses a method for manufacturing a graduated neutral density filter, which is especially suitable for the manufacture of non-standard filters, so as to at least solve the , there are problems such as high cost, long design and experiment cycle, resulting in slow supply speed, etc.

Method used

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  • Fabricating method of gradual neutral density filter
  • Fabricating method of gradual neutral density filter
  • Fabricating method of gradual neutral density filter

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Embodiment 1

[0044] The customer requested to produce a gradient neutral density filter according to the sample. The sample is made by photolithography and is an irregular product with a small demand. If the existing mass production method is used for production, there will be a production cycle Long time and high cost. Therefore, try to use laser processing to develop products that meet customer needs.

[0045] The production process of the gradient neutral density filter is as follows:

[0046] 1) According to customer requirements, select a fixed neutral density filter that meets the initial requirements as the substrate;

[0047] Taking samples as an example, according to customer requirements, look for a neutral density filter with a light transmittance of 0 for a specified wavelength as a substrate.

[0048] 2) Calculate and obtain the removal amount of the surface film system at the key node position of the substrate according to the curve requirements of the transmittance changing...

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Abstract

The invention discloses a fabricating method of a gradual neutral density filter. The fabricating method of the gradual neutral density filter comprises the steps that a fixed neutral density filter closest to a target gradual neutral density filter is selected as a substrate, and the substrate is processed twice by using laser processing technology to obtain the satisfactory gradual neutral density filter. The fabricating method of the gradual neutral density filter has the advantages of high fabricating efficiency, low fabricating costs and the like.

Description

technical field [0001] The disclosure of the present invention relates to the technical field of optical element manufacturing, in particular to a method for manufacturing a gradient neutral density filter. Background technique [0002] The neutral density filter is a filter that attenuates the light intensity without changing the spectral energy distribution. On the premise of maintaining the neutral spectral distribution, it can dynamically and continuously adjust the total light energy transmitted by the system or control the different positions of the beam (section) light intensity distribution. Neutral density filters are suitable for adjusting light energy applications from ultraviolet, visible to near-infrared bands, and are mainly used in laser, optical communication, photography, astronomy, laboratory research and other fields. [0003] At present, the production methods of neutral density filters are mainly coating and photolithography, and the above two productio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/362G02B5/20G02B27/00
CPCB23K26/362G02B5/205G02B27/0012
Inventor 马轶男赵帅锋张永喜金秀汪忠伟杨亮王宇楠宋云鹏诸海博徐春风
Owner SHENYANG ACAD OF INSTR SCI