|
|
|
|
|
|
|
Right Angle Prisms
MATERIAL - ZnSe (Zinc Selenide) CVD
 |
Crystaltechno Ltd. manufactures right angle prisms (RAP) from fused silica, glass and different types of optical crystals, including ZnSe (Zinc Selenide) CVD
Right angle prisms are used for beam turning, for minimizing of optical systems dimensions and image converting.
|
|
PARAMETER |
|
VALUE |
|
|
|
|
|
|
|
|
| |
Flatness |
|
Lambda/2 at 633 nm per inch |
|
| |
Scratch-Dig |
|
80 - 50 |
|
| |
Size tolerance |
|
± 0.1 mm |
|
| |
Angle tolerance |
|
± (2-3) arc minutes |
|
| |
Pyramid tolerance |
|
± (2-3) arc minutes |
|
| |
Bevels |
|
(0.2-0.3) mm x 45 ° |
|
|
A |
|
B |
|
C |
|
Part Number |
|
Unit price, Euro/each
IR optical grade |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
7,0 |
|
7,0 |
|
7,0 |
|
PR17-03 |
|
43 |
|
| |
10,0 |
|
10,0 |
|
10,0 |
|
PR17-04 |
|
48 |
|
| |
12,7 |
|
12,7 |
|
12,7 |
|
PR17-05 |
|
55 |
|
Large sizes of ZnSe right angle prisms are also available
We produce two kinds of Zinc Selenide (ZnSe) CVD material, which differ in spectral transmittance and grain size, namely
- Zinc Selenide (ZnSe) CVD laser grade, grain size (50-70) microns, index of absorption 0.0005 cm-1 at 10.6 microns, optical component dimensions (3-100) mm, thickness 20mm, used in high power CO2 laser optics, in medical applications.
- Zinc Selenide (ZnSe) CVD IR optical grade, grain size (20-100) microns, index of absorption 0.003 cm-1 at 10.6 microns, optical component dimensions (3-300) mm, thickness 20mm, used in protective windows and thermal imaging equipment, in industrial applications.
You can see both spectral transmittance of laser grade and IR optical grade uncoated polished windows (thickness 2 mm).
Because of high refractive index (n=2.4 at 10.6 microns), Fresnel losses of ZnSe polished surface are equal 17% (at one side) at 10.6 micron. We offer antireflection (AR) coating both for one wavelength (10.6 microns or another) and for the spectral range (3 - 12) microns.
|
|
|
|
|
