A method of printing non-effective diameter of mobile phone lens lens

Abstract

The invention is a non-effective-diameter printing method for mobile phone lens lenses. The angle between the inclined surface of the lens side and the parallel line of the optical axis is 5°≤θ≤35°, and the height from the sky surface of the lens to the first platform surface is L>0.5mm Under certain conditions, to prevent the ink flow caused by the common ink application method, use the pad printing method to print black on the non-effective diameter of the lens; the pad printing operation method is: (1) place the lens in the jig, and fix the jig; (2) Use the ink cartridge to scrape to keep the ink in the groove of the steel concave plate; (3) The pad printing rubber head is curved and pressed down into the steel concave plate, and the ink on the steel concave plate is dipped into the pad printing The surface of the rubber head; the pad printing rubber head is made of silicone rubber material; (4) After the pad printing rubber head is dipped in ink, it is lifted and moved to the top of the lens, aligned with the lens to be printed and pressed down, and the black ink pad printing is completed. It solves the problem of printing quality on the side inclined surface of the lens, the ink does not flow, the range accuracy is high, and the yield rate of the black printing of the non-effective diameter of the lens is improved, which is suitable for mass processing and production.

Description

technical field [0001] The invention relates to the black printing technology of the non-effective diameter area of ​​the lens in the small head lens of the mobile phone, and specifically relates to the operable range and operation method of pad printing. Background technique [0002] With the demand for full-screen smartphones, higher requirements are put forward for the small head structure of mobile phone lenses. The effective diameter of the first lens is extremely small, the height of the side surface is increased and the angle of inclination is small, and the resulting stray light caused by transmitted light and reflected light is difficult to solve. Therefore, black printing is performed on the non-effective diameter area of ​​the lens, and the black ink material is used to absorb transmitted light and reflected light, thereby eliminating stray light. This pad printing method does not produce the ink flow phenomenon caused by other ink coating methods, and has high r...

AI Technical Summary

Problems solved by technology

The effective diameter of the first lens is very small, the height of the side surface is increased and the angle of inclination is small, and the resulting stray light caused by transmitted light and reflected light is difficult to solve

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