Junk ring, processing method of junk ring and lens module
A processing method and pressure ring technology, applied in the direction of instruments, installation, optics, etc., can solve the problems of poor shading effect, affecting the optical performance of the lens module, single form, etc., and achieve simple processing method, good optical performance, and assembly process simple effect
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[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] see figure 1 , is a structural schematic diagram of the pressure ring of the present invention. The present invention provides a pressure ring 10 , which includes a main body 11 , a light hole 12 , a hollow cavity 13 , a through hole 14 , a hole plug 15 , a black filler 16 and an anti-reflection film 17 .
[0028] The main body 11 is made of a transparent material so that more light can pass through its surface.
[0029] The light hole 12 is disposed through the main body 11 , so that the main body 11 forms a ring shape.
[0030] The hollow cavity 13 is embedded in the main body 11 , and the black filling material 16 is filled in the hollow cavity 13 . This structure allows light to be blocked and absorbed by the black filler 16 after passing through the surface of the main body 11 . In this embodiment, more preferably, the black filler 16 is...
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