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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.

TEMTO 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


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
Diameter(mm)
+0.00/-0.10
+0.00/-0.05
+0.00/-0.01
Thickness(mm)
0.10
0.02
0.005
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
Bevel
<0.25mm x 45or upon requirement
No bevel
Coating
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.

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