High limit rotating speed superspeed photographic instrument rotating mirror
A limit speed, ultra-high-speed technology, applied in the field of rotating mirrors, can solve the problems of weakening the strength of rotating mirrors, affecting the time resolution of ultra-high-speed cameras, and increasing the internal stress of the mirror body, so as to promote further development, reduce production costs, The effect of increasing the limit speed
Inactive Publication Date: 2007-09-12
SHENZHEN UNIV
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Problems solved by technology
Since there is a shaft hole in the center of the mirror body, the stress inside the mirror body is increased, and the strength of the entire rotating mirror is greatly weakened, which limits the further increase of the upper limit of the rotating mirror speed and affects the time resolution of the ultra-high-speed camera.
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[0024] As shown in FIGS. 1 , 2 , 3 , 4 , and 5 , in the preferred embodiment of the rotating mirror for an ultra-high-speed camera with a high limit speed in the present invention, it includes a mirror body 1 and two bushings 2 . The mirror body 1 has the same overall shape and size as the existing rotating mirror mirror body, so that the rotating mirror can be used without making any changes to the ultra-high-speed camera, and has good compatibility. In this preferred embodiment, the mirror body 1 is preferably in the shape of a regular triangular prism. The mirror body 1 is preferably made of cheap aluminum alloy material, and can also be made of metal beryllium or steel.
[0025] The two end surfaces 3 of the mirror body 1 are respectively provided with cylinders 6 extending outward, and the cross-section of the cylinders 6 can be circular, regular polygon or special shape. The cylinder 6 is preferably perpendicular to the end surface 3 of the mirror body, and its center l...
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This invention relates to a high-speed limit for the ultra high-speed photography to the mirror, including body and the two bushings mirror, mirror described as a solid body, extends its two ends were referred to a mirror with the centerline of rotation of the cylinder axis coincidence; The aboved two bushings are provided with one end referred to the two ends of the cylinder-match bush, described sleeve with the centerline of the inner hole mirror referred to the axis of rotation overlap. Because of the center of the mirror no axle hole, so ultra-high-speed operation, reduce internal stress to the original one-third-strength increase, making the entire high-speed limit for super-high-speed photography to mirror the increased speed limit of 70%.Thereby to create the high-speed limit for super-high-speed photography to the mirror, is not limited to use of beryllium materials, but also being able to select cheap aluminum alloy to promote the further development of instrument of the super-high-speed photography.
Description
technical field [0001] The invention relates to an ultra-high-speed camera, more specifically, to a rotating mirror with a high limit rotational speed in the ultra-high-speed camera. Background technique [0002] The rotating mirror is an important optical component in the optical system of an ultra-high-speed camera. It needs to ensure that the mirror surface has high reflectivity and high finish. At the same time, the rotating mirror is in a high-speed rotating state when the ultra-high-speed camera is working, which requires it to have sufficient strength and rigidity. Therefore, the rotating mirror in the high-speed camera must not only have good optical performance, but also have good mechanical performance. The mechanical properties of the rotating mirror have a direct impact on its optical properties, and this impact is exerted through the rotational speed. For a framing camera, the rotation speed of the rotating mirror affects the shooting frequency of the camera, ...
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IPC IPC(8): G03B17/02G03B39/00
Inventor 李景镇黄虹宾龚向东何铁锋
Owner SHENZHEN UNIV