Machining technology for optical lens rounding

An optical lens and processing technology, applied in the field of optics, can solve problems such as slow production speed, failure to meet the requirements of the process, long heating and cooling time, etc., to improve yield, reduce stress, and reduce broken edges Effect

Pending Publication Date: 2015-08-26
CHANGZHOU OPTICAL MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

4 poise, the glass and the mold are subjected to isothermal pressure. The disadvantage of this method of manufacturing glass optical parts is that it takes a long time to heat up and cool down, so the production speed is very slow.
[0004] The current optical lens processing technology still has problems such as water chestnut, chamfer, and radian, which cannot meet the requirements of the process, so we have introduced a new process. Our process has the advantages of rapid prototyping of optical lens edging, and the minimum grinding process The advantages of reducing damage, solve the problem of water chestnut, chamfer, radian

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Select a quartz sand glass crystal substrate cutting sheet or a double-sided grinding sheet, use a centerless grinder spindle grinding wheel to grind the outer periphery of the optical lens, and grind the bottom into a circle. Using the silicon oxide film as the surface protective coating of the optical lens substrate can meet the requirements of the high-speed and high-temperature use of the substrate wafer.

[0021] Then adjust the main grinding wheel to 20 rpm, the grinding wheel shaft speed is 8400 rpm, the workpiece feed speed, and grind for 40 minutes, so that the optical lens can quickly reach the ideal molding.

[0022] Then use the German imported Xili cleaning agent to clean the optical lens initially to make the surface of the optical lens clean and transparent. Finally, clean it for 3 minutes under the condition of ultrasonic amplitude of 0.3mm and frequency of 60KHz to remove difficult-to-clean oily matter or grinding residue. Under the imprint, the mirror ...

example 2

[0024] Select a quartz sand glass crystal substrate cutting sheet or a double-sided grinding sheet, use a centerless grinder spindle grinding wheel to grind the outer periphery of the optical lens, and grind the bottom into a circle. Using the silicon oxide film as the surface protective coating of the optical lens substrate can meet the requirements of the high-speed and high-temperature use of the substrate wafer.

[0025] Then adjust the main grinding wheel to 45 rpm, the grinding wheel shaft speed is 7000 rpm, the workpiece feed speed, and polish for 10 minutes, so that the optical lens can quickly reach the ideal molding.

[0026] Then use the German imported Xili cleaning agent to initially clean the optical lens to make the surface of the optical lens clean and transparent, and finally clean it for 5 minutes under the condition of ultrasonic amplitude of 0.2m and frequency of 50KHz to remove difficult-to-clean oil or grinding residue Under the imprint, the mirror surfac...

example 3

[0028] Select a quartz sand glass crystal substrate cutting sheet or a double-sided grinding sheet, use a centerless grinder spindle grinding wheel to grind the outer periphery of the optical lens, and grind the bottom into a circle. Using the silicon oxide film as the surface protective coating of the optical lens substrate can meet the requirements of the high-speed and high-temperature use of the substrate wafer.

[0029] Then adjust the main grinding wheel to 60 rpm, the grinding wheel shaft speed is 6000 rpm, and the workpiece feed speed is polished for 10 minutes, so that the optical lens can quickly reach the desired molding.

[0030] Then use the German imported Xili cleaning agent to clean the optical lens initially, so that the surface of the optical lens is clean and transparent, and finally clean it for 10 minutes under the condition of ultrasonic amplitude of 0.4mm and frequency of 80KHz to remove difficult-to-clean oily matter or grinding residue. Under the impri...

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PUM

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Abstract

The invention discloses a machining technology for optical lens rounding to mainly solve the problems of corner angles, chamfers and radians existing in the existing optical lens machining process. A centerless grinding machine main shaft grinding wheel is utilized for carrying out optical lens peripheral grinding, and the bottom of an optical lens is ground to be round; then, the rotating speed of a main grinding wheel and the rotating speed of a main shaft wheel are adjusted so that fine grinding can be directly carried out; finally, cleanout fluid is used for cleaning the optical lens under the action of ultrasonic waves, and the purpose that technology meets the requirement for 360-degree radians of the final optical lens is achieved. According to the technology, the machining procedure of the machining technology of the optical lens is effectively simplified; fast forming is achieved; the production cost is effectively saved; the finished product pass percent is greatly increased.

Description

technical field [0001] The invention relates to a process for rounding an optical lens, which belongs to the field of optical technology. Background technique [0002] At the beginning, the optical lens processing technology is the glass lens molding method, which is to pour the molten optical glass blank into a low-temperature mold with a temperature higher than the glass transition point of 50 ° C and press it. This method is not only prone to glass adhesion to the mold. On the mold surface, and the product is prone to produce air holes and cold mold traces, it is difficult to obtain the ideal shape and surface accuracy. Later, the optical lens technology industry began to adopt the isothermal pressing method, which is relatively easy to obtain high precision, that is, easy to precision The method of copying the surface of the mold shape is to use a precision-processed molding mold made of special materials. In an environment without an oxidizing atmosphere, the glass and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 潘相成
Owner CHANGZHOU OPTICAL MATERIAL
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