Commercial-quality film polarizers are available. These linear polarizers have 25% transmittance for unpolarized light. Two crossed sheets have an average transmission of 0.04%. The sheets are neutral gray in color. It can be used as a variable attenuator.
Linear film polarizers are available in custom sizes.
Sandwiched type linear film polarizers are also available. In this models, a linear film polarizer is sandwiched between two polished BK7 glass discs and mounted on a black anodized aluminium threaded mount. The mounts are made with standard threads so that it can be mounted to any opto- mechanical mount which has similar thread.
Optical type | : | Transmissive |
Colour | : | Neutral gray |
Polarization | : | Linear |
Polarizing efficiency | : | 99 % |
Polarizer sheet Thickness | : | 0.18 mm |
Spectral range | : | 400 - 700 nm |
Extinction ratio | : | ≥ 500 : 1 |
Model No. | Type | Diameter (mm) |
Clear Aperture (mm) |
Mount | Price ($) |
HO-LFP-12.5 | Sheet | 12.5 | - | Unmounted | 13.00 |
HO-LFP-25 | Sheet | 25 | - | Unmounted | 21.00 |
HO-LFP-50 | Sheet | 50 | - | Unmounted | 51.00 |
HO-LFPS-12.5 | Sandwiched | 12.5 | 10 | SM05 | 70.00 |
HO-LFPS-25 | Sandwiched | 25 | 22 | SM1 | 92.00 |
HO-LFPS-50 | Sandwiched | 50 | 46 | SM2 | 132.00 |
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