This is a device that integrates optical filters and electromagnetic structures, and is a core component in the optical system of surveillance cameras or action cameras. This is generally composed of an infrared cut-off filter, anti-reflection film, plastic pieces, metal pieces, and an excitation solenoid valve. It can automatically switch between two filters according to the day and night needs, detecting the different needs of high-resolution imaging during day and night.
Technical characteristics and advantages:
Allows for customized product development
Visual smart doorbell