Automatic control system and control method of optical filming

Abstract

The invention relates to an optical coating automatic control system which comprises an industrial control computer, a control unit, a serial port expansion card for connection, a display, a digital temperature controller and a compound vacuum gauge. The optical coating automatic control system comprises a coating operation signal processing and program control function module, OPC control system software, an interlocking function module, a misoperation protection function module, a failure safety processing and alarm function module, coating data information automatic record, a storage function module, a man machine operation interface and an abnormal alarm interface. The control system and the control method of the invention can realize automatic operation during the whole process of optical coating and the automatic monitoring and processing of abnormity happening and failure during the operation process of all equipment, and can carry out real-time display, record and storage to information parameters during the operation process of the coating system, thereby having the advantages of highly system reliability, stable coating quality, high efficiency, convenient operation and reducing production cost, etc.

Description

technical field [0001] The invention belongs to the technical field of optical coating monitoring, and relates to an optical coating automatic control system and a control method thereof. Background technique [0002] Vacuum coating is an important link in the production of optical devices, especially in the field of precision optical technology such as modern photography and projection. The quality of coating often determines the main performance and function of optical devices. In the known technology, the production operation and process control of the optical coating usually adopts manual operation and simple instrumentation monitoring, and each link can only be controlled by experience. This production method not only has low production efficiency, high labor intensity, and unstable product quality, but also a little carelessness of the operator will lead to poor coating quality, batches of workpieces are scrapped, and waste of expensive optical materials and film mater...

AI Technical Summary

Problems solved by technology

In the known technology, the production operation and process control of optical coating usually adopt manual operation and simple instrument monitoring, and each link can only be controlled by experience

This production method not only has low production efficiency, high labor intensity, and unstable product quality, but also a little carelessness of the operator will lead to poor coating quality, batches of workpieces are scrapped, and waste of expensive optical materials and film material resources. , and even lead to the occurrence of coating equipment and even personal accidents. Moreover, the coating debugging of the coating machine is very complicated, and it takes a lot of time for the user or the debugging personnel.

At present, some coating technologies adopt analog coating control, but because there is no real-time monitoring and processing function, the stability and accuracy are poor, and it is difficult to meet the requirements of high precision and continuous coating

So far, there is no optical coating technology with high degree of automation, easy operation, stable and reliable coating quality, and high production efficiency.

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