Abstract

ABSTRACT In this paper, the results in test of high-speed rotating mirror and its applications were described. Some problems and their solvents that the rotating mirror meets at high­ speed were introduced. As a result, four kinds of rotating mirror devices were given.High-speed rotating mirror device is mainly composed of rotating mirror, support system of mirror and driving system. They would be mainly studied. 1. ROTATING MIRROR Since the rotating mirror is not only a key component of rotating mirror camera but also a optical component that can't be lacked, its characteristics of mechanics and quality of optics must be well enough in order to meet the needs. It is very important for rotating mirror to choose proper materials, the shape of cross-section and get a high quality of optical surface.1.1. Rotating mirror materialSteel, titanium alloy, aluminium alloy, beryllium possess better characteristics as ro­ tating mirror material. Beryllium is the best material, however, because of its high price, intense poison, brittleness, complex working process and high cost, it only is used in the cameras with very high quality targets. High-intensity aluminium alloy is a better kind of material as rotating mirror because of its advanced making technology, high bursting speed, low driving power, small deformation coefficient and low costs.

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