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

5 Cites 11 Cited by

AI-Extracted 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 atta...

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Method used

As can be seen from Table 1, adopt the method for cleaning in embodiment 4 to compare with the method for comparative example 1, as can be seen from 10 groups of optical lens total average values, after adopting the method for cleaning of embodiment 4 to clean The proportion of residues on the lens cylinder is reduced by 27.47% compared with Comparative Example 1, and the proportion of residues drops significantly. The ratio of the residues is quite different, and the yield of the optical lens after cleaning by the ...

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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.

Application Domain

Flexible article cleaningCleaning using liquids

Technology Topic

ChemistryOrganic solvent +5

Image

Examples

Experimental program(4)
Comparison scheme(1)
Effect test(1)

Example Embodiment

[0038] Example 1

[0039] A cleaning method for an optical lens, the specific steps of which are as follows:

[0040] (1) Cleaning with organic solvent cleaning solution, soaking the lens in ether in the first cleaning tank at 20°C for 0.5h. Immerse the lenses in municipal water for 10 min.

[0041] (2) Cleaning with an alkaline cleaning solution, soaking the lens cleaned in step (1) in sodium hydroxide in a second cleaning tank for 0.5 h at 20°C. Immerse the lenses in municipal water for 10 min.

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

[0043] (4) Pure water cleaning, soaking the lens cleaned in step (3) in pure water in the fourth cleaning tank for 0.5h at 20°C. In the process of pure water cleaning, ultrasonic vibration is accompanied, and the ultrasonic wave works in an environment with a power of 1KW, and the frequency of the ultrasonic wave is 400Hz. Immerse the lenses in municipal water for 10 min.

[0044] (5) Alcohol cleaning, soaking the lens cleaned in step (4) in alcohol with a volume concentration of 95% in the fifth cleaning tank at 20° C. for 0.5 h. Immerse the lenses in municipal water for 10 min. Slowly lift the lens vertically, cut the water, and pull the lens at a speed of 10cm/min.

[0045] (6) Drying, using a centrifuge and a dryer to dry and dehydrate the cleaned lenses for 10 minutes, with a drying wind speed of 5m/s and a temperature of 50°C.

Example Embodiment

[0046] Example 2

[0047] A cleaning method for an optical lens, the specific steps of which are as follows:

[0048] (1) Clean with organic solvent cleaning solution, and spray the lens with toluene for 1 h at 25°C. The lenses were sprayed with deionized water for 15 min.

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

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

[0051] (4) Cleaning with deionized water, spraying the lens cleaned in step (3) with deionized water for 1 hour at 25°C. In the process of deionized water cleaning, ultrasonic vibration is accompanied. The ultrasonic wave works in an environment with a power of 1KW, and the frequency of the ultrasonic wave is 1000Hz. The lenses were sprayed with deionized water for 15 min.

[0052] (5) alcohol cleaning, spraying the lens cleaned in step (4) with alcohol with a volume concentration of 96% at 25° C. for 1 hour. The lenses were sprayed with deionized water for 20 min. Hang the lens vertically for 2 min.

[0053] (6) Drying, using a centrifuge and a dryer to dry and dehydrate the cleaned lenses for 15 minutes, with a drying wind speed of 10 m/s and a temperature of 60°C.

Example Embodiment

[0054] Example 3

[0055] A cleaning method for an optical lens, the specific steps of which are as follows:

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

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

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

[0059] (4) Pure water cleaning, soak the lens cleaned in step (3) in pure water in the fourth cleaning tank for 1 hour at 30°C. The pure water cleaning process 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 500Hz. The lens was sprayed with pure water for 20min.

[0060] (5) Alcohol cleaning, soaking the lens cleaned in step (4) in alcohol with a volume concentration of 96% in the fifth cleaning tank at 30° C. for 1 hour. Slowly lift the lens vertically, cut the water, and pull the lens at a speed of 25cm/min. The lens was sprayed with pure water for 20min.

[0061] (6) Drying, using a centrifuge and a dryer to dry and dehydrate the cleaned lenses for 15 minutes, with a drying wind speed of 20 m/s and a temperature of 80°C.

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Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

Good cleaning effect
Improve cleaning effect

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

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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