Electric flexible hinge pinhole filter

Abstract

The invention provides an electric flexible hinge pinhole filter. The pinhole filter comprises a hinge mechanism and a diaphragm mechanism; the hinge mechanism comprises a micro-displacement hinge, and an angle displacement hinge and a drive device respectively connected with the micro-displacement hinge; the diaphragm mechanism comprises a blade, a slide chute plate, a cam mechanism and a cam connection frame; the cam connection frame is connected with the angle displacement hinge; a curve-shaped slide chute is arranged on the slide chute plate corresponding to a drive direction of the drive device; the cam mechanism and the slide chute form a matched relation and are respectively connected with the blade and the cam connection frame, and the drive device outputs a micro displacement and outputs a micro-angle displacement after passing through the micro-displacement hinge and the angle displacement hinge. The micro-angle displacement is transferred to the cam mechanism through the cam connection frame, and the cam mechanism drives the blade to move along a slide chute direction of the slide chute plate. The pinhole filter disclosed by the invention has the characteristics of simple structure without backlash, and small error, and adjustable electric control submicron displacement can be achieved.

Description

technical field [0001] The invention relates to a pinhole filter, in particular to an electric flexible hinge type pinhole filter. Background technique [0002] In the 1980s, laser scanning confocal microscopes became popular in the field of microscopy. Compared with ordinary fluorescence microscopes, the main feature of confocal microscopes is the use of a pair of conjugated pinholes in the light source and detector. According to the requirements of the optical system, this type of pinhole is required to be an electrically adjustable pinhole aperture, and the step resolution is below microns. Therefore, the traditional motor control and mechanical transmission aperture mechanism must be difficult to meet the requirements. [0003] The invention patents of the precision aperture mechanism are concentrated in several optical and mechanical enterprises in Japan. Among them, CN 1100205A applied by Sony Corporation and CN 101639557 applied by Nippon Precision Instrument Co., L...

AI Technical Summary

Problems solved by technology

However, such inventions all adopt multi-leaf and manual adjustment methods, which cannot meet the precision requirements for electric adjustment and precise aperture adjustment in confocal or other similar applications.

Shenzhen Han's Laser Technology Co., Ltd. proposes an aperture adjustable diaphragm with a pinhole switching method. This method cannot achieve precise adjustment of the pinhole aperture and cannot meet the requirements of electric adjustment.

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