Between-lens shutter device of full-frame transfer CCD camera

Abstract

The invention discloses a between-lens shutter device of a full-frame transfer CCD camera. The between-lens shutter device comprises a cover, an outer shell, an inner shell, a conductive coil assembly, angle aluminum 1, angle aluminum 2, a moving shaft, a rivet I, a moving plate, a rivet 2, a slip ring, a blade, a rivet 3 and fixed screws, wherein the blade is located between the outer shell and the inner shell and is provided with a pivot fixed on the outer shell to ensure that the blade can rotate around the pivot; another pivot of the blade passes through the inner shell through the rivet 3 and is connected with the slip ring; one end of the moving plate is connected with the slip ring through the rivet 2 and the other end is connected with the moving shaft through the rivet 1; the moving shaft is connected with the conductive coil assembly; the conductive coil assembly is fixed on the inner shell through the angle aluminum 1 and the angle aluminum 2; the cover and the outer shell are fixed together through two fixed screws; and the blade in the shutter device is located at the position of an aperture diaphragm between a front lens group and a rear lens group. The shutter device has the advantages of small volume, light weight, high efficiency and long service lifetime.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a full-frame transfer type CCD camera inter-mirror shutter device. Background technique [0002] With the rapid development of the aviation industry, aerial imaging technology has been widely used in military and civilian fields, such as military target detection, ground surveying and mapping, ground target tracking and so on. With the continuous improvement of camera technical specifications, there is an urgent need for the emergence of large area array and wide field of view cameras. The full-frame transfer type area array CCD is simple in structure, has a large number of pixels, and a large fill factor, which meets the large area array requirements of the camera system and has been widely used in the field of aerial imaging. However, after photoelectric conversion, since there is no image storage area, the photocharges are transferred row by row to the horizontal shift regis...

AI Technical Summary

Problems solved by technology

[0005] The objective lens shutter has low efficiency, high energy consumption, and is easy to vibrate, which affects the imaging quality. It is difficult to reduce the exposure time of large-aperture optical cameras, and the service life is short during continuous operation.

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