Optical filter switcher

Abstract

The invention relates to an optical filter switcher, which comprises a housing, a switching pulling chip and a driving mechanism, wherein the housing is formed by a base and a cover board; the switching pulling chip is arranged in the housing; and the driving mechanism is used for driving the switching pulling chip. The optical filter switcher is characterized in that the driving mechanism comprises a rotating rocker arm; a rotating shaft of the rotating rocker arm is arranged on a permanent magnet bearing seat; two magnetic energy chips are arranged in parallel on the both sides of the permanent magnet bearing seat and the rotating rocker arm; a magnetic conducting chip is arranged between one magnetic energy chip and the permanent magnet bearing seat; and the magnetic energy chips are thin chips formed by overlaying and compressing a plurality of layers of PCBs (Printed Circuit Board). The magnetic energy chips are ultrathin, occupy a small space and can be used for guiding the rotating rocker arms to take the accurate and in-place fixed-point motion and the rotating rocker arm rotates to pull a connecting position to drive the switching pulling chip so as to finally implement the switching effect on an optical filter. The optical filter switcher has a simple mechanism.

Description

【Technical field】

[0001] The invention relates to the field of image imaging, in particular to an optical filter switcher. 【Background technique】

[0002] In the existing photographing equipment, in order to meet the requirement of photographing in a dark environment, a filter switcher is provided in the photographing equipment. The filter switcher can make the shooting device switch between a daytime shooting mode and a nighttime shooting mode. The filter switch generally includes a visible light glass plate for daytime shooting mode and an infrared light glass plate for nighttime shooting mode. The filter switch generally includes an infrared cut filter for daytime shooting mode, and a white glass for nighttime shooting mode. The filter switcher is generally placed between the lens of the shooting device and the image sensor. When the light is sufficient, the filter switcher sets the infrared cut filter between the lens and the image sensor. between the optical path of ...

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