Dispersing (Equilateral) Prisms
Equilateral dispersing prisms are used to separate wavelengths. A light ray is refracted twice as it passes through the prism. Deviation, θd is a function of refractive index, and hence wavelength. Angular deviation &Deltad is the difference in deviation for light rays having different wavelengths and varies with prism orientation.
Dispersing (Equilateral) Prisms
Specifications: |
 |
| Material |
BK7,Fused silica,Pyrex. |
| Design Wavelength |
587.6 nm |
| Angle Tolerance |
±3 arc minutes |
| Clear Aperture |
90% |
| Surface Quality |
60-40 scratch and dig |
| Surface Flatness |
λ/2 at 632.8 nm over clear aperture |
| Face Coating |
Specified by customer |
List of Product Tables
| Part No. |
Edge Dimensions (mm) |
Clear Aperture (mm) |
Material |
| XPD-001 |
10.0 |
9.0 |
BK7 |
| XPD-002 |
15.0 |
13.5 |
BK7 |
| XPD-003 |
20.0 |
18.0 |
BK7 |
| XPD-004 |
25.0 |
22.5 |
BK7 |
| XPD-005 |
30.0 |
27.0 |
BK7 |
| XPD-006 |
50.0 |
45.0 |
BK7 |
| XPD-007 |
90.0 |
81.0 |
BK7 |
| XPD-008 |
105.0 |
94.5 |
BK7 |