Light-transmitting film detection system and detection method

Abstract

A light-transmitting film detection system and its detection method, wherein the detection system is used to detect whether the film thickness of the light-transmitting film is abnormal, including a reference piece, a driving device, a camera device and a processor. The reference element is located on one side of the light-transmitting film, and has a detection surface facing the light-transmitting film, and a plurality of detection lines arranged at intervals are arranged on the detection surface. The driving device drives the transparent film to move relative to the reference part. The imaging device is located on the other side of the light-transmitting film, and faces the light-transmitting film and the reference member, and continuously photographs the light-transmitting film being driven by the driving device to move, the reference member passing through the light-transmitting film Displays an image with spaced lines. The processor is electrically connected to the camera device, and compares whether the line image is distorted to determine whether the film thickness of the light-transmitting film is abnormal.

Description

technical field [0001] The invention relates to a detection device; in particular, it refers to a detection system and a detection method of a transparent film. Background technique [0002] With the advancement of the optical industry, the application of light-transmitting films has become increasingly popular in the electronics industry (such as the inner layer of touch panels) and the automotive industry (such as thermal insulation paper). For the convenience of transportation, after the production of the light-transmitting film is completed, it is usually bundled on a long tube, and the surface of the light-transmitting film is inspected for scratches, color blocks, etc. Circle and mark the defective parts of the light-transmitting film to prevent users of the light-transmitting film (such as manufacturers of touch panels and thermal insulation paper) from misusing the defective light-transmitting film to ensure that the light-transmitting film can be used time quality....

AI Technical Summary

Problems solved by technology

[0003] In addition to the above-mentioned defects such as scratches and color blocks that will affect the optical properties of the light-transmitting film, whether the film thickness of the light-transmitting film is consistent will also affect the optical effect of the light-transmitting film

However, generally speaking, due to the large volume of the light-transmitting film after production, the timing for film thickness detection of the light-transmitting film is usually after the light-transmitting film is to be processed and cut into a predetermined size. This method is not only time-consuming and labor-intensive, but also often leads to detection errors.

In addition, when the film thickness of the cut light-transmitting film is found to be abnormal, the entire cut light-transmitting film can only be scrapped, which will easily lead to waste of raw materials, or cut it into pieces. Light-transmitting film with a smaller area, but the light-transmitting film after re-cutting may be too small or out of shape

Therefore, it can be seen from the above description that the existing method for detecting film thickness is still not perfect, and there is still room for improvement

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