High contrast dichroic sheet polarizer is made of dichroic film sandwiched by two glass plates. When a natural beam transmits through the dichroic material, one of the orthogonal polarization component of the beam is strongly absorbed and the other goes out with a weak absorption. So, dichroic sheet polarizer can be used to convert randomly polarized beam into linearly polarized beam. Compared with polarizing prisms, dichroic sheet polarizer offers a much bigger size and acceptable angle, but it can not be used in high power applications.
★ Working Wavelength 400-700nm
★ High Extinction Ratio >1000:1
★ Large Size Available
★ Acceptable Angle >20Deg
★ RoHS Compliant
| Substrate Material | BK7 or B270 |
| Dimension Tolerance | +0/-0.2mm |
| Thickness | around 2.5mm |
| Surface Quality | 60/40 scratch and dig |
| Clear Aperture | >90% |
| Acceptable Angle | >20deg |
| Working Wavelength | 400-700nm |
| Extinction Ratio | >1000:1 |
| Single Transmission for Parallel Polarized Beam | >70%@632.8nm |
| Coating | No |
| Damage Threshold | >10W/cm2 Continuous Pass, >1W/cm2 Continuous Block |
