Manufacturing process for large breadth high precision laminating optical calibration board

Abstract

The invention discloses a manufacturing process for a large breadth high precision laminating optical calibration board. The manufacturing process comprises the following steps: verifying levelness ofoptical glass and detecting pattern precision of test paper with an optical tester; dedusting the optical glass and the calibrating test paper; laminating the optical glass and the calibrating test paper for the first time in a first laminating condition; laminating the optical glass and the calibrating test paper after first time laminating in a second laminating condition; laminating the optical glass and the calibrating test paper after second time laminating in a third laminating condition; and leaving a product to stand at a constant temperature for 24 hours, wherein the product meets the set technical demands finally to finish manufacturing. The process flow can be used for manufacturing the high precision laminating optical calibrating board, the area of which exceeds 1000*1000 mm,the thickness of which is not smaller than 4 mm, the flatness of which is 0.25 mm and the pattern precision of which is 0.003 mm. The demand on expensive equipment is reduced, the production cost isreduced by 80% greatly, the technical demand on production staff is reduced, and the delivery time is shortened by nearly 90%.

Description

technical field [0001] The invention relates to the technical field of manufacturing optical calibration plates, in particular to a manufacturing process for large-scale and high-precision bonding optical calibration plates. Background technique [0002] The optical calibration board is mainly used to calibrate the overall focus and resolution of the camera lens, adjust the lens, check the lens, check the center back focus of the lens and the geometric distortion and resolution of each area. At present, it is mainly made of chrome-plated optical glass plate through optical corrosion and etching; generally, the precision of small format smaller than 400mm is 0.001mm; the precision of large format larger than 400-800mm is 0.003mm. Because of its high precision requirements, high processing costs, extremely high requirements on the production environment, and a long production cycle. In the existing technology, the processing of large-format (greater than 800mm) optical calibr...

AI Technical Summary

Problems solved by technology

Because of its high precision requirements, high processing costs, extremely high requirements on the production environment, and a long production cycle

In the existing technology, the processing of large-format (greater than 800mm) optical calibration plates has higher and more difficult requirements on equipment, environment, cost, personnel, technology, quality, and precision. Large-format calibration plates are also prone to warping and cannot To ensure its flatness so as to affect the accuracy of product patterns, the production equipment is extremely expensive, the processing environment is harsh, the production cost is high, the technical requirements for production personnel are lowered, the production process requirements are high, the quality is not easy to guarantee, and the delivery time Longer, therefore, the existing technology needs to be improved

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