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Equilateral Prisms are used routinely as dispersing elements where spectral separation is required. They provide better brightness (lower stray light) than diffraction gratings. They also have greater power handling capabilities and avoid possible confusion when trying to interpret overlapping spectral orders. It must be remembered that dispersion is non-linear with wavelength and that surface reflection losses may affect throughput.
ultiQuest Technology offers Equilateral Prisms in three materials designed to suit a wide variety of dispersion, wavelength and surface reflection requirements. In general, a higher refractive index material produces greater angular separation.
 Standard Specifications:
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Optical Material:
Dimension Tolerance:
Clear Aperture:
Angular Tolerance:
Surface Quality:
Wavefront Distortion:
Bevel:
Coating: |
BK7, Fused Silica,SF10
+0.0,-0.15mm
>90%
±5 arc minutes
20-10 scratch and dig
lambda/2 at 632.8nm
<0.25mm X 45°
available upon request |
Standard Laser Quality Equilateral Prism
Size A=B(mm) |
Size C(mm) |
Product Number |
BK7 Glass (330-2100 nm) |
15 |
15 |
UQT-LEPB0101 |
20 |
20 |
UQT-LEPB0102 |
25 |
25 |
UQT-LEPB0103 |
30 |
30 |
UQT-LEPB0104 |
40 |
40 |
UQT-LEPB0105 |
UV Grade Fused Silica (200-2500 nm) |
15 |
15 |
UQT-LEPF0201 |
20 |
20 |
UQT-LEPF0202 |
25 |
25 |
UQT-LEPF0203 |
30 |
30 |
UQT-LEPF0204 |
40 |
40 |
UQT-LEPF0205 |
| SF10 Glass (400-2400 nm) |
15 |
15 |
UQT-LEPS0301 |
20 |
20 |
UQT-LEPS0302 |
25 |
25 |
UQT-LEPS0303 |
30 |
30 |
UQT-LEPS0304 |
40 |
40 |
UQT-LEPS0305 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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Please contact us for OEM with mass production.. |
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Every edge of these prisms is chamfered (beveled) for chipping prevention. The dimensions of these prisms are values not including chamfer. |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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