狠狠狠狼鲁欧美综合网_久久伊人国产精品_a国产在线v的不卡视频_无码人妻免费在线 国产精品碰碰现在自在拍_理论电影无码在线观看_台湾av毛片不卡免费_日本按摩高潮A级中文片不

 Dove prism has two applications. The main application is used as a rotator. It can rotate an image but without deviating the beam. And when the prism is rotated about the input parallel ray through some angle, the image rotates through twice that angle. It is very important that the application must be used with parallel or collimated beam and the large square reflective surface should be kept very clean. Another application is used as a retroreflector. For this application it perform as a right-angle prism.

Specification for standard Dove prism:
Material: BK7 Grade A optical glass
Dimension Tolerance:+0,-0.2mm
Flatness:λ/4 @ 632.8 nm
Surface Quality: 60-40 scratch and dig
Clear Aperture: >80%
Bevel: 0.2 mm to 0.5 mm x 45
Angle Tolerance:±3arcmin