Equilateral Prisms
Equilateral prisms are normally used for the dispersion of light into its different colors. Light incident at an oblique angle to the first face is dispersed according to its wavelength and emerges as a spectrum from the opposite face. We offer these prisms made from BK7 optical glass.
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| Sides a=b=c (mm) | Material | Surface Flatness | Surface Quality | Coating | Dimensions tolerance | Angle deviation | Clear Aperture | Bevel |
|---|---|---|---|---|---|---|---|---|
| 20.0 | BK7 | λ/10 | 20 - 10 | BMAR 425-675 | ±0.2mm | ±3arcmin | 90% | 0.3mm x 45° typical |
| 25.0 | BK7 | λ/10 | 20 - 10 | BMAR 425-675 | ±0.2mm | ±3arcmin | 90% | 0.3mm x 45° typical |
| 30.0 | BK7 | λ/10 | 20 - 10 | BMAR 425-675 | ±0.2mm | ±3arcmin | 90% | 0.3mm x 45° typical |