Lens test device

Abstract

The invention discloses a lens testing device. The lens test device comprises an image acquisition device, a light source module and a test bench, wherein the light source module is used for providing test stripe patterns needed for testing a lens; the test bench is positioned between the image acquisition device and the light source module and is used for bearing a lens to be tested; the lens test device also comprises an anti-static device; the anti-static device comprises an ion generator and an air blower; the ion generator is used for generating positive and negative ions; and the air blower is used for blowing the positive and negative ions generated by the ion generator to the lens to be tested in the test bench so as to eliminate static generated on the lens to be tested. The lens test device of the invention can generate the positive and negative ions and blow the positive and negative ions to the lens to be tested, thus preventing the static generated in the test process of the lens.

Description

technical field [0001] The invention relates to a lens testing device. Background technique [0002] With the rapid development of multimedia technology, digital cameras, video cameras and mobile phones with cameras are more and more popular among consumers. In photographic devices such as digital cameras, video cameras and mobile phone cameras, optical lenses are an indispensable part. The image quality of objects captured by digital cameras, video cameras and mobile phone cameras mainly depends on the imaging quality of the lens, so it is very important to test the lens during the production process. Static electricity is often generated during the lens test process. Since the back focal length of mobile phone lenses and other products is much shorter than that of traditional camera lenses, the image acquisition device will be very close to the rear end of the lens during image testing, so as to achieve correct The imaging position of this type of lens is generally relat...

AI Technical Summary

Problems solved by technology

Static electricity is often generated during the lens test process. Since the back focal length of mobile phone lenses and other products is much shorter than that of traditional camera lenses, the image acquisition device will be very close to the rear end of the lens during image testing, so as to achieve correct The imaging position of this type of lens is generally relatively small, so the test lens and the image acquisition device often attract each other due to electrostatic interaction during the test, so that the test lens is picked up from the test platform by the image acquisition device and hits the image on the acquisition device, causing damage to the image acquisition device or lens

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