広入射角リターダ
- 広入射角によるリターダンス変化を低減
- ≦λ/100 λ/２波長板 30°入射時のリターダンス変化
- ≦λ/200 λ/４波長板 30°入射時のリターダンス変化
| Retarder Material | Birefringent Polymer |
| Substrate Material | BK 7 Grade A, fine annealed |
| Standard Wavelengths | 532, 632.8, 670,780,850, 1064 and 1550 nm |
| Custom Wavelengths | 400～1800 nm (specify) |
| Standard Retardance | λ/4 and λ/2 |
| Retardance Accuracy | ≦λ/250 at normal incidence at the center of the part |
| Retardance Change (at 30°tilt) | |
| Half-wave Quarter-wave |
≦λ/100 ≦λ/200 |
| Transmitted Wavefront Distortion (at 632.8 nm) |
≦λ/2 |
| Surface Quality | 60～40 scratch and dig |
| Beam Deviation | ≦ 1 arc min 1 arc min |
| Reflectance (per surface) | |
| At normal incidence At 30° incidence |
≦ 0.5% ≦ 1.0% |
| Diameter Tolerance | |
| Mounted Unmounted |
±0.005 in. +0/-0.010 in. |
| Temperature Range | 0℃ to 40℃ |
- 広入射角リターダ
372KB
（2009-2010年カタログ page 33-34） - Meadowlark社 2009-2010年最新カタログ 6.6MB
