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Low internal reflection composite base material and manufacturing method thereof

A composite substrate, internal reflection technology, applied in optics, instruments, optical components, etc., can solve the problems of imaging quality, increased internal reflection of the substrate, damage to the coating structure, etc., to achieve increased complexity, simple manufacturing process, The effect of increased production costs

Inactive Publication Date: 2017-04-26
GUANGZHOU JIAHE PHOTOELECTRIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during assembly, the reflection of stray light from other components enters into the substrate and causes imaging quality problems. Therefore, it is necessary to print optical black paint around the substrate to form a shielding layer to block and absorb the stray light reflected from other components.
[0005] Setting a shielding layer on the coating layer will cause damage to the coating structure, resulting in a substantial increase in the internal reflection of the substrate, thereby affecting the imaging quality
The existing base material with a shielding layer has a local internal reflectance of up to 6% (420nm-680nm), which has a great impact on the imaging quality

Method used

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  • Low internal reflection composite base material and manufacturing method thereof
  • Low internal reflection composite base material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1) Coating optical black ink on the designated area of ​​the glass substrate;

[0033] 2) After the ink is cured, move the substrate to a vacuum coating machine for coating treatment to obtain a low internal reflection substrate with a shielding layer.

Embodiment 2

[0035] 1) Coating optical black ink on the designated area of ​​the sapphire glass substrate;

[0036] 2) After the ink is cured, PVD coating treatment is performed on the base material to obtain a low internal reflection base material with a shielding layer.

Embodiment 3

[0038] 1) Coating optical black ink on the designated area of ​​the glass substrate;

[0039] 2) After the ink is cured, the substrate is subjected to CVD coating treatment to obtain a substrate with a low internal reflection with a shielding layer.

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Abstract

The invention discloses a low internal reflection composite base material and a manufacturing method thereof. In the base material, a filtering or absorption effect of a shielding layer to light can be realized and ultralow internal reflection can be maintained. Compared to the base material of the shielding layer arranged on a routine coating film layer, the base material of the invention can be as low as 0.1%-0.2% (420nm-680nm). A manufacturing technology of the base material is simple. Compared to the manufacturing technology of the traditional base material which is coated with the shielding layer, a complex degree of the technology in the invention is not increased, and production cost is not increased either and even is decreased.

Description

technical field [0001] The invention relates to a composite substrate with low internal reflection and a manufacturing method thereof. Background technique [0002] Optical components, especially optical components for imaging, such as optical lenses, have special requirements for the reflection and transmission of light in order to obtain better imaging effects. [0003] By coating the surface of transparent substrates, such as glass, sapphire, plastic, etc., the optical properties of the substrate can be effectively improved, such as increasing its transmittance, reducing internal reflection, and improving imaging quality. [0004] The processing technology commonly used in existing substrates is coating first and then cutting, and the cut substrates are then assembled with other components. However, during assembly, due to the reflection of stray light around other components into the substrate, causing imaging quality problems, it is necessary to print optical black pai...

Claims

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Application Information

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IPC IPC(8): G02B5/20G02B5/22G02B5/26
CPCG02B5/20G02B5/22G02B5/265
Inventor 陈信源何伟锋钟涛
Owner GUANGZHOU JIAHE PHOTOELECTRIC TECH CO LTD
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