Unmounted Laminated Polymer Film Linear Polarizers

The LPGF and LPNIR series linear polarizers are not mounted in a housing for a lower cost option. They are constructed by laminating a polymer polarizing film between two high-precision glass windows. They are available in 400-700 nm, 750-850 nm and 1000-2000 nm wavelength ranges. These high contrast polarizers are ideal for a wide range of applications involving low power NIR lasers, LEDs, and other NIR sources.

Low cost unmounted linear polarizers
Visible, and NIR wavelengths
Standard diameters for convenient mounting
AR coated for maximum transmission

See All Features

Description	Compatibility	Extinction Ratio	Wavelength Range	Diameter	Price
LPGF-1VIS Linear Polarizer, 25.4 mm, 2.0 mm thick, 400-700 nm	UNIVERSAL	100:1	400-700 nm	25.4 mm	$56
LPGF-2VIS Linear Polarizer, 50.0 mm, 2.4 mm thick, 400-700 nm	UNIVERSAL	100:1	400-700 nm	50.0 mm	$80
LPNIR-1NIR Linear Polarizers, 25.0 mm Dia., 2.0 mm thick, 750-850 nm	UNIVERSAL	1000:1	750-850 nm	25.0 mm	$440
LPNIR-2NIR Linear Polarizers, 25.0 mm Dia., 2.0 mm thick, 1000-2000 nm	UNIVERSAL	1000:1	1000-2000 nm	25.0 mm	$513

Mounting Options

Manual Rotation Mounts


Models				()
Retaining Thread	1.063-20
Compatible Optic Diameter*	25.4 mm 12.7 mm ()
Special Features	1 in. Mirror Mounts Compatibility	OpticsCage+™ Compatibility	Tip&Tilt Adjustments	Fine Adjustments


Models	()	()	()	() ()
Retaining Thread	0.546-32	1.040-32	1.035-40	1.063-20	2.063-20 1.063-20	–
Compatible Optic Diameter*	12.7 mm	25.4 mm		25.4 mm 12.7 mm ()	50.8 mm 25.4 mm 12.7 mm ()	50.8 mm () 38.1 mm () 25.4 mm () 12.7 mm () 6.35 mm ()
Special Features	Compact	Stackable	A-Line™ Compatibility	Fine Adjustments		Quick Exchange

Motorized Rotation Mounts


Models		() ()	() ()	()
Retaining Thread	1.040-32	1.063-20		1.563-20
Compatible Optic Diameters*	25.4 mm			25.4 mm 12.7 mm

*The adapter in parentheses is required for the optic size before it.

Specifications

Material
B270
Polarizing Material
Dichroic Polymer
Damage Threshold
1 W/cm² CW, 0.2 J/cm² with 20 nsec pulses, visible, typical

Diameter Tolerance
+0.0/-0.2 mm
Thickness Tolerance
±0.2 mm
Unpolarized Transmission, Single
30% ± 3%

Features

400-700 nm Visible Linear Polarizers

Our unmounted linear polarizing glass filters LPGF-1 and LPGF-2 are recommended for 400-700 nm wavelength applications and are offered in 1 or 2 inch diameter substrates.

750-850 nm NIR Linear Polarizers

We offer unmounted NIR linear polarizer LPNIR-1 for 750-850 nm wavelength applications. The 25 mm diameter B270 Grade substrate has a narrowband multi-layer AR coating on both sides.