Prism
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.
OP-Unite 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:
¡ñPrism spectrometersBeam turning
¡ñBeam
steering
¡ñLaser
tuning
¡ñEvanescent wave coupling
¡ñPrisms as
beam expanders
Right Angle Prism |
Peanta Prism |
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|
Corner Cube Retroreflector |
Dove Prism |
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|
Manufacturing Tolerances
Tolerances |
Commercial quality |
Precision quality |
Manufacturing limits |
Glass Quality |
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 |
Note: The general tolerance specifications above provide
a guideline regarding manufacturing capabilities for optics ranging
in size from 3-100mm. The manufacturing limits are not absolute;
tighter tolerances may be possible. Part specific tolerances may
vary depending on component size, shape, and/or material. |