类型
道威棱镜，屋脊棱镜，楔形镜、菱形棱镜，角锥棱镜，五棱镜，色散棱镜，直角棱镜
材料
SCHOTT,CDGM,OHARA HOVA,熔石英等光学玻璃材料
| Specification | Normal | Precision |
| Diameter Tolerance | 0.00,-0.10mm | 0.00,-0.05mm |
| 90° Deviation | ＜30 arc min | ＜3 arc sec |
| Flatness | λ/4@632.8nm | λ/10@632.8nm |
| Clear Aperture | >85% | >90% |
| Surface Quality | 60-40 S/D | 20-10 S/D |
| Coating | Available upon request |
