Linear Polarizer, Polymer Film, 700:1, 430-670 nm, 50.8 mm

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.

Visible Polarizer

Our visible polarizers are recommended for 430-670 nm wavelength applications, and use a Grade A N-BK7 substrate.

Black Anodized Aluminum Housings

The polarizer assembly is mounted in a black anodized aluminum housing for protection, with the transmission axis clearly marked. The result is linear polarizers with high transmission and low wavefront distortion. The standard outer diameters are convenient for mounting into Newport rotary mounts.

Precision Linear Polarizers

Our Precision Linear Polarizers consist of dichroic sheet polymer polarizer material that is laminated between high quality glass substrates. In the visible wavelength range, these precision optics offer peak-to-valley transmitted wavefront distortion of <λ/5. They feature high extinction ratios, surface quality of 40-20 scratch-dig and offer wide angular acceptance.

Specifications

Technical Specs

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
R_avg <0.5 %, 400-700 nm

Clear Aperture
30.5 mm
Diameter Tolerance
±0.13 mm
Transmitted Beam Deviation
≤1 arc min
Angle of Incidence
±10°
Wavefront Distortion
≤ λ/5 at 632.8 nm over the clear aperture
Unpolarized Transmission, Parallel Pair
H₀ >28%
Unpolarized Transmission, Single
T_T >37%

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
R_avg <0.5 %, 400-700 nm

Clear Aperture
30.5 mm
Diameter Tolerance
±0.13 mm
Transmitted Beam Deviation
≤1 arc min
Angle of Incidence
±10°
Wavefront Distortion
≤ λ/5 at 632.8 nm over the clear aperture
Unpolarized Transmission, Parallel Pair
H₀ >28%
Unpolarized Transmission, Single
T_T >37%

Resources & Downloads

3D Product Models

2D Product Drawings

PRECLINE-S(98.3 kB, PDF)

Other

20LP-VIS-B RoHS Certificate(264.5 kB, PDF)
20LP-VIS-B_ROHS2-2021.pdf(279.5 kB, PDF)

Related Products

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Description	Compatibility
Linear Polarizer, Polymer Film, 700:1, 430-670 nm, 25.4 mm	UNIVERSAL	Learn More
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Linear Polarizer, Polymer Film, 150:1, 310-400 nm, 50.8 mm	UNIVERSAL	Learn More

Compatible

Description	Compatibility
Optic Holder Cell, 2.0 in. Diameter Optics, Requires LM2-R Mount	UNIVERSAL	Learn More
Optic Cell Rotation Mount, 2° Graduations, For LH2 Optic Cells	UNIVERSAL	Learn More
Optic Rotation Mount, 50.8 mm, Fine Adjust Knob, 8-32 and M4	UNIVERSAL	Learn More

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