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Cleaning method of optical lens

An optical lens and lens technology, which is applied in the directions of cleaning methods using liquids, chemical instruments and methods, cleaning methods and utensils, etc. problem, to achieve good cleaning effect, improve cleaning effect, and enhance the effect of cleaning effect

Inactive Publication Date: 2018-03-06
II VI OPTICS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the traditional method is that it is difficult to completely remove the extremely fine particles attached to the surface of the lens, especially after the lens is polished and ground, it is difficult to remove the residue attached to the cylindrical surface (non-polished surface) of the lens, and even the cylindrical surface of the lens needs to be cleaned. Then polish and wipe separately, which has a great impact on the quality of the lens and the yield rate of the product

Method used

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  • Cleaning method of optical lens
  • Cleaning method of optical lens

Examples

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Effect test

Embodiment 1

[0039] A kind of cleaning method of optical lens, its concrete steps are as follows:

[0040] (1) Cleaning with an organic solvent cleaning solution, soaking the lens in ether in the first cleaning tank at 20° C. for 0.5 h. Soak the lens in city water for 10 minutes.

[0041] (2) Cleaning with an alkaline cleaning solution, immersing the lens cleaned in step (1) in sodium hydroxide in a second cleaning tank at 20° C. for 0.5 h. Soak the lens in city water for 10 minutes.

[0042] (3) Cleaning with an acidic cleaning solution, immersing the lens cleaned in step (2) in hydrochloric acid with a volume concentration of 15% in the third cleaning tank for 0.5 h at 20° C. Soak the lens in city water for 10 minutes.

[0043] (4) Cleaning with pure water, immersing the lens cleaned in step (3) in pure water in the fourth cleaning tank at 20° C. for 0.5 h. The process of pure water cleaning is accompanied by ultrasonic vibration, the ultrasonic works in an environment with a power o...

Embodiment 2

[0047] A kind of cleaning method of optical lens, its concrete steps are as follows:

[0048] (1) Cleaning with an organic solvent cleaning solution, and spraying the lens with toluene at 25° C. for 1 hour. Spray the lens with deionized water for 15 minutes.

[0049] (2) Cleaning with an alkaline cleaning solution, spraying the lens cleaned in step (1) with potassium hydroxide at 25° C. for 1 hour. Spray the lens with deionized water for 15 minutes.

[0050] (3) Cleaning with an acid cleaning solution, spraying the lens cleaned in step (2) with nitric acid with a volume concentration of 18% at 25° C. for 1 hour. Spray the lens with deionized water for 15 minutes.

[0051] (4) Cleaning with deionized water, spraying the lens cleaned in step (3) with deionized water at 25° C. for 1 hour. The process of deionized water cleaning is accompanied by ultrasonic vibration. The ultrasonic wave works in an environment with a power of 1KW, and the frequency of the ultrasonic wave is 1...

Embodiment 3

[0055] A kind of cleaning method of optical lens, its concrete steps are as follows:

[0056] (1) Cleaning with an organic solvent cleaning solution, soaking the lens in acetone in the first cleaning tank at 30° C. for 1 hour. Spray the lens with pure water for 20 minutes.

[0057] (2) Cleaning with an alkaline cleaning solution, immersing the lens cleaned in step (1) in sodium hydroxide in a second cleaning tank at 30° C. for 1 hour. Spray the lens with pure water for 20 minutes.

[0058](3) Cleaning with an acidic cleaning solution, immersing the lens cleaned in step (2) in nitric acid with a volume concentration of 20% in the third cleaning tank for 1 hour at 30° C. Spray the lens with pure water for 20 minutes.

[0059] (4) Cleaning with pure water, immersing the lens cleaned in step (3) in pure water in the fourth cleaning tank at 30° C. for 1 hour. The process of pure water cleaning is accompanied by ultrasonic vibration, the ultrasonic wave works in an environment w...

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Abstract

The invention discloses a cleaning method of an optical lens. The cleaning method comprises the following specific steps that 1, the lens is cleaned with an organic solvent cleaning solution; 2, the lens is cleaned with an alkalinity cleaning solution; 3, the optical lens is cleaned with an acidity cleaning solution; 4, the lens is cleaned with deionized water; 5, the lens is cleaned with alcohol;and 6, the lens is dried. After each step from one to three, a water cleaning solution is utilized for carrying out cleaning; and ultrasonic vibration is accompanied in the step 4. By means of the manner, the cleaning method can improve the cleaning effect of the optical lens, and especially residues on the cylinder surface (non-polished surface) of the lens can be eliminated. As the acidity cleaning solution is added, alkaline matter attached to the surface of the lens is neutralized, the cleaning effect can be enhanced, and other impurities are not introduced.

Description

technical field [0001] The invention relates to the technical field of lens processing, in particular to a cleaning method for optical lenses. Background technique [0002] Optical technology is constantly being innovated, and optical products are changing with each passing day. The cleaning of optical lenses is an indispensable quality assurance in this field. The coating, bonding, and ink coating of optical lenses are all based on the cleanliness of the lens surface. The cleanliness of the lens surface is the basis of post-engineering processing of the lens, and the cleanliness and dryness of the lens are the processing goals. The surface of the lens is wet, which will easily cause the post-process to be unable to process, and it is more likely to cause adverse phenomena such as pressure on the lens surface and dust absorption. Due to the complexity of processing links and higher quality requirements, the current traditional cleaning methods often cannot meet the latest t...

Claims

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Application Information

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IPC IPC(8): B08B3/08B08B3/12B08B3/02B08B11/00
CPCB08B3/08B08B3/02B08B3/12B08B11/00
Inventor 周志凯张婷
Owner II VI OPTICS (SUZHOU) CO LTD
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