【摘要】 透镜中心厚度是光学系统中的一个重要参数,其加工精度直接影响光学系统的成像质量.为便于检测透镜中心厚度,本文以干涉法为基础,设计了一种检测仪器,并介绍了该检测方法的测量原理.为保证其测量精度,在被测透镜的装卡机构中采用了自动定心装置,借助该装置的自动寻找透镜中心的功能,可以使仪器的测量精度提高到3μm.更多还原

【Abstract】 The center thickness of lens is an important parameter of optical systems. Its precision directly influences the imaging quality of optical system. In order to test the thickness of lens center conveniently, this paper introduces a photoelectric instrument to measure the thickness by interference method and introduces the principle of this test method. A automatic centralizer has been adopted in the fixture to achieve the precision requirement. This device has the function of automatical calibration of the lens center automatically. Therefore the measurement precision can be improved to 3 μm.更多还原