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随着光学仪器制造业的飞速发展,对大口径镜面的需求量日益增大。大口径镜面在抛光修改过程中,除与小口径镜面一样会出现划痕、象散、油斑、球差、色差等疵病外,还会出现一些特殊的疵病.如柏油印、彗星尾、黑子斑。此三种疵病往往在镜面加工临结束前单独或结伴存在.而疵病修改好坏对象质影响甚大。本文试对这三种特殊疵病的形成原因和修改方法
With the rapid development of the optical instrument manufacturing industry, the demand for large-aperture mirrors is increasing day by day. Large-diameter mirror in the polishing process, in addition to the same as small-caliber mirror will appear scratches, astigmatism, oil spots, spherical aberration, color and other flaws, there will be some special flaws, such as tarnish, comet tail , Spot sunspot. These three defects are often alone or in conjunction before the end of the mirror processing, while the quality of the defect to modify the quality of a great impact. This article attempts to test the causes and modification methods of these three special flaws