| parameter | prism standard specification |
| material | glass, fused silica etc. |
| dimension | 0.3~420mm |
| dimension tolerance | /-0.01mm |
| angle tolerance | 90° /-1", others /-30"~ /-3' |
| parallelism | 1'~5' |
| flatness(in 25mm area) | n=0.5, △n=0.1 |
| surface quality | as required |
| chamfer | c0.1mm, 45° |
| coating | ar film, reflection film, splitter film etc. |
* remark：customized is available | |