| Prisms are blocks of
optical material with flat polished sides arranged at precisely
controlled angles to each other, which deflect, deviate
and rotate beams of light as well as dispersing their wavelengths.
We
can manufacture many types of prism, each having a particular
geometry to achieve the reflections necessary to perform
a specific imaging task. Reflecting prisms may invert, rotate,
deviate or displace a beam. Dispersing prisms produce spectral
separation for spectroscopic applications or for tuning
a laser output.
Rising EO provides Right Angle prism, Penta
Prism, Corner Cube and custom shape prism with the material
of all kinds of Chinese Optical Glass, B270, BK7, UV Fused
Silica, CaF2, MgF2, Silicon, Germanium and etc.
Reflecting and anti-reflection coatings on working surfaces
can be put if necessary; more details please refer to our
coatings chapter.
Most of our prisms are widely used for laser and commercial
applications; hereby we briefly describe six applications
of prisms to illustrate the versatility of this optics:
Prism spectrometersBeam turning
Beam steering
Laser tuning
Evanescent wave coupling
Prisms as beam expanders
| Right Angle Prism
|
Peanta Prism |
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| Retroreflectors
|
Dove Prism |
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Manufacturing Tolerances
| Tolerances |
Commercial quality |
Precision quality |
Manufacturing limits |
| GlassQuality |
Nd |
+/-0.001 |
+/-0.0005 |
Melt controlled |
| Vd |
+/-0.8% |
+/-0.3% |
Melt controlled |
| Dimensions(mm) |
+/-0.10 |
+/-0.05 |
+/-0.01 |
| Scratch-Dig |
80-50 |
40-20 |
10-5 |
| Power (fringe) |
5 |
1 |
0.2 |
| Irregularity (fringe) |
2 |
0.5 |
0.1 |
| Beam Deviation |
3 arc minutes |
30 arc seconds |
Facility controlled |
| Pyramid Error |
3 arc minutes |
1 arc minute |
Facility controlled |
| Bevels |
Upon requirement |
No bevel |
| Coatings |
Upon requirement |
The general tolerance specifications above
provide a guideline regarding manufacturing capabilities
for optics ranging in size from 1-100mm. The manufacturing
limits are not absolute; tighter tolerances may be possible.
Part specific tolerances may vary depending on component
size, shape, and/or material.
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