Lens with ventilation mechanism, its lens, manufacturing method and foreign matter blocking method

Abstract

The present invention provides a lens, including a lens body and at least one ventilation mechanism, wherein the ventilation mechanism is arranged around the periphery of the lens body, and there is a certain distance between two ends of adjacent ventilation mechanisms, The ventilation groove is formed on the edge of the lens, and the ventilation mechanism further includes at least one blocking portion, the blocking portion is arranged in the ventilation groove, wherein the ventilation path of the ventilation groove extends along the blocking portion .

Description

technical field [0001] The invention relates to the field of optics, and more particularly relates to a lens with a ventilation mechanism and the lens thereof, a manufacturing method and a foreign object blocking method. Background technique [0002] The performance of the optical system in optical products needs to be kept good and stable to ensure normal use and imaging quality. If foreign matter outside the optical system enters the optical system, adheres to the lens or other parts, or scratches the internal structure of the optical system , movement, etc., will affect the performance of the optical system, thereby affecting normal use and imaging quality. [0003] In the existing optical product design, in order to promote the dissipation of water mist, the plastic lens is mostly designed with a ventilation groove structure to facilitate ventilation. The traditional lens slotting is a three-stage straight-through slot, so that the ventilation slot is designed as a stra...

AI Technical Summary

Problems solved by technology

[0006] In addition, the cross-section of the straight-through ventilation groove is relatively large, and large particles of foreign matter can easily pass through the ventilation groove and enter the interior of the optical system

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