The 20LP-VIS-B Precision Linear Polarizers is constructed by laminating a polymer polarizing film between two high-precision glass windows. Each window has a high-efficiency 430 to 670 nm broadband VIS antireflection coating. The assembly is mounted in a 2 inch (50.8 mm) diameter black anodized aluminum housing for protection and provides a 30.5 mm clear aperture. The transmission axis is clearly marked. The result is a linear polarizer with high transmission and low wavefront distortion that are easy to mount.
Технические характеристики
- Diameter 50.8 mm
- Wavelength Range 430-670 nm
- Material Grade A N-BK7
- Polarizing Material Dichroic Polymer
- Extinction Ratio 700:1
- Damage Threshold 1 W/cm2 CW, 0.2 J/cm2 with 20 nsec pulses, visible, typical
- Reflectivity Ravg
- Surface Quality 40-20 scratch-dig
- Clear Aperture 30.5 mm
- Diameter Tolerance ±0.13 mm
- Transmitted Beam Deviation &le,1 arc min
- Angle of Incidence ±10°
- Wavefront Distortion &le, &lambda,/5 at 632.8 nm over the clear aperture
- Unpolarized Transmission, Parallel Pair H0 >28%
- Unpolarized Transmission, Single TT >37%
