Wheel disc type multi-filter IR-CUT switch

Abstract

The invention discloses a wheel disc type multi-filter IR-CUT switch, which relates to the technical field of supporting devices each provided with an objective lens, an additional lens, an optical filter cover or a rotary table and the like. The switch comprises a container-shaped fixing base, wherein one or more wheel discs are arranged in the fixing base, a plurality of via holes are formed in the periphery of each wheel disc, a filter is arranged in each via hole, the filters on the same wheel disc are of different types, a cover plate covers on the fixing base, so that an accommodating cavity for the wheel discs is formed by means of the fixing base and the cover plate, an upper light-transmitting hole is formed in the cover plate, a lower light-transmitting holes is formed in the fixing base, the upper light-transmitting hole and the light-transmitting hole are positioned in a facing manner, and the upper light-transmitting hole and the light-transmitting hole are positioned in a manner of facing one filter; and a driving device is arranged outside the accommodating cavity, and the driving device is connected with the wheel disc by means of a transmission device. The wheel disc can load a large number of filters of different types and of the same thickness or different thickness, the optical filtering effect is good, and the imaging quality is excellent.

Description

technical field [0001] The invention relates to the technical field of a support device with an objective lens, an additional lens, a filter cover or a rotating table, and in particular to a wheel-type multi-filter IR-CUT switcher. Background technique [0002] The IR-CUT switcher refers to a set of filters built in the camera lens group. When the infrared sensing point outside the lens detects the change in the intensity of light, the built-in IR-CUT automatically switches the filter according to the external The intensity of the light is automatically switched accordingly, so that the image can achieve the best effect. However, the switchers in the prior art generally have the following disadvantages: 1) Low control precision: only two fixed positions, open and close, have no precision during movement, and the position precision of open and close is also relatively low (compared with plastic molding and assembly operations). , switching times, fixture accuracy, etc.), the...

AI Technical Summary

Problems solved by technology

However, the switchers in the prior art generally have the following disadvantages: 1) Low control precision: only two fixed positions, open and close, have no precision during movement, and the position precision of open and close is also relatively low (compared with plastic molding and assembly operations). , switching times, fixture accuracy, etc.), the accuracy cannot be controlled, and the driving error is large; 2) The driving force is poor: it can only drive single-chip or double-chip and small-sized filters, the carrying capacity is small, and due to the use of electromagnetic The driving of the valve is limited by the force arm & swing angle and the force of the movement space; 3) Poor impact resistance and anti-interference ability: rely on static holding force to stay in a fixed position, and the static force is relatively small, so it can only be used in stationary applications such as bolts. or vibration-free lens and environment

4) Poor stability: due to the use of solenoid valves for driving and no guide post guidance, the driving stability and consistency are poor

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