Sell survey prism

Description

They are called corner cubes because the three surfaces that make up the &#**9;pyramid&#**9; are at *0 degree angles to each other and thus form the corner of a cube. As you have noticed, light entering the prism is reflected back to its source, even at relatively large angles of incidence. The angle of incidence is the angular difference between the incoming light rays and an imaginary line perpendicular to the face of the prism. A beam of light entering the prism bounces off all three back surfaces and exits at the same angle it entered. Specifications Material: *****7 Grade A Dimension Tolerance: ******0.0, *0.2 mm Clear Aperture: *****.................>*0% Surface Quality: *****.................****0 Flatness: *****...............λ/***** Wavefront Distortion: *****&*;Ž&*;&*;/*@******************** *****..............0°± 5 arc secs Size (Ïï¿&frac*2;): *****............Ïï¿&frac*2;6.0 to Ïï¿&frac*2;**0mm