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Product Description

Linear polarizing film/N-BK7 Window, sandwich flat structure, with mechanical housings
Uniform transmission direction within the component plane
Capable of generating linearly polarized light beams with specific polarization directions
High extinction ratio, large incident angles
Operating wavelength λ: 400-700 nm, 700-1700 nm
Custom services for parameter specifications available

The LBTEK Thin Film Linear Polarizer consists of front and rear N-BK7 glass substrates with a linear polarizing film sandwiched in between, offering two mounting options —the retaining ring and the rotation mirror mount. Across the entire component surface, the transmission axis remains consistent, making it suitable for generating linearly polarized light beams with specific polarization directions while ensuring the high extinction ratio and a wide range of incident angle. LBTEK provides thin film linear polarizers with operating wavelengths of 400-700 nm and 700-1700 nm, along with flexible customization of parameter specifications to meet diverse application requirements. For details, please consult LBTEK Technical Support.

Square Thin Film Polarizers, 400-700 nm, Unmounted

Size: 50×50 mm or 100×100 mm
Wavelength range: 400-700 nm
Incidence angle range: ±20 °

The LBTEK Square Thin Film Polarizers are available in two models: FLP-VIS-50/FLP-VIS-100, with dimensions of 50×50 mm or 100×100 mm respectively, and an operating wavelength range of 400–700 nm. Both sides of the thin film polarizer are coated with protective films, which are marked with the polarization direction. The protective films can be peeled off as needed when in use. The thin film polarizer can transmit and absorb the polarized light within specific wavelength ranges, making it suitable for low-power applications and capable of achieving ultra-high extinction ratios.

The static display of thin film polarizers combined with vortex waveplates

	Product Model	Size	Wavelength range	Unit Price	Compare	Lead Time
	FLP-VIS-100	100×100 mm	400 nm-700 nm	$55.56		3 weeks
	FLP-VIS-50	50×50 mm	400 nm-700 nm	$13.99		3 weeks

Thin Film Linear Polarizers, 400-700 nm, With Retaining Rings for Mounting

Operating wavelength: 400-700 nm
Mechanical housing dimensions: Ø12.7 mm, Ø25.4 mm, Ø50.8 mm
Suitable for low-power applications, high extinction ratios, large incident angles
Housings engraved with product models and transmission axis direction marking lines for easy use

The thin film linear polarizers with an operating wavelength range of 400-700 nm, have anti-reflection coatings on both air-contact surfaces of the substrates for corresponding wavelength bands. The thin film linear pilarizer with clear apertures of Ø10 mm, Ø21.5 mm, and Ø45 mm respectively, are mounted in mechanical retaning rings with diameters of Ø12.7 mm, Ø25.4 mm, and Ø50.8 mm. The thin film linear polarizer is suitable for low-power applications and offers high extinction ratios and a wide incidence angle range of ±20° when used to generate the linearly polarized light. All three product models are marked with the product numbers and transmission axis direction on the housings for convenient use by customers. Note: Due to product version updates, discrepancies may occur between the engraved markings on the housing and the actual product model. However, this does not affect product performance. Please feel assured in using the product.

FLP25-VIS-M installed in CRM-1A

Product Model	Mechanical housing diameter	Clear Aperture	Operating Wavelength	Unit Price	Lead Time
FLP51-VIS-M	Ø50.8 mm	Ø45 mm	400 nm-700 nm	$169.05	3 weeks
FLP25-VIS-M	Ø25.4 mm	Ø21.5 mm	400 nm-700 nm	$92.96	1week
FLP13-VIS-M	Ø12.7 mm	Ø10 mm	400 nm-700 nm	$76.48	1week

Thin Film Linear Polarizer, 700-1700 nm, with Retaining Rings for Mounting

Operating wavelength: 700-1700 nm
Mechanical housing dimensions: Ø12.7 mm, Ø25.4 mm, Ø50.8 mm
Suitable for low-power applications, high extinction ratios, large incident angles
Housings engraved with product models and transmission axis direction marking lines for easy use

The thin film linear polarizers with an operating wavelength range of 700-1700 nm, have anti-reflection coatings on both air-contact surfaces of the substrates for the corresponding wavelength bands. The thin film linear polarizers respectively with clear apertures of Ø10 mm, Ø21.5 mm, and Ø45 mm, are mounted in mechanical retaining rings with diameters of Ø12.7 mm, Ø25.4 mm, and Ø50.8 mm. These thin film linear polarizers are suitable for low-power applications and offer high extinction ratios and a wide incidence angle range of ±20° when used to generate the linearly polarized light. All three product models are marked with the product numbers and transmission axis direction on the housings for convenient use by customers. Note: Due to product version updates, discrepancies may occur between the engraved markings on the housing and the actual product model. However, this does not affect product performance. Please feel assured in using the product.

FLP25-NIR-M installed in CRM-1A

Product Model	Mechanical housing diameter	Clear Aperture	Operating Wavelength	Unit Price	Lead Time
FLP51-NIR-M	Ø50.8 mm	Ø45 mm	700 nm-1700 nm	$462.04	3 weeks
FLP25-NIR-M	Ø25.4 mm	Ø21.5 mm	700 nm-1700 nm	$178.59	1week
FLP13-NIR-M	Ø12.7 mm	Ø10 mm	700 nm-1700 nm	$112.83	1week

Thin Film Linear Polarizers, 400-700 nm, with Rotation Mirror Mounts

Operating Wavelength: 400-700 nm
Mechanical housing model: CRM-05AS, CRM-1AS, CRM-2A
Suitable for low-power applications, high extinction ratios, large incident angles
The transmission axis aligned with the 0° marking line of the rotation mirror mount for easy use

The thin film linear polarizers with an operating wavelength range of 400-700 nm have anti-reflection coatings on both air-contact surfaces of the two substrates for the corresponding wavelength bands. The polarizers with retaining ring mounts are installed in rotation mirror mounts CRM-05AS, CRM-1AS, and CRM-2A, with clear apertures of Ø10 mm, Ø21.5 mm, and Ø45 mm, respectively. These thin film linear polarizers are suitable for low-power applications and exhibit high extinction ratios when used to generate the linearly polarized light, with a wide incidence angle range of ±20°. The transmission axes of all three products are aligned to the 0° marking line and secured with adhesive for convenient use by customers.

The thin film linear polarizer with the rotation mirror mount is assembled using the post

Product Model	Operating Wavelength	Clear Aperture	Mechanical housing dimensions	Unit Price	Lead Time
FLP13-VIS-CRM	400 nm-700 nm	Ø10 mm	25.0 mm×25.0 mm×11.0 mm	$129.17	5 weeks
FLP25-VIS-CRM	400 nm-700 nm	Ø21.5 mm	42.0 mm×42.0 mm×15.9 mm	$141.98	5 weeks
FLP51-VIS-CRM	400 nm-700 nm	Ø45 mm	76.0 mm×76.0 mm×20.4 mm	$256.38	5 weeks

Thin Film Linear Polarizers, 700-1700 nm, with Rotation Mirror Mounts

Operating wavelength: 700-1700 nm
Mechanical housing models: CRM-05AS, CRM-1AS, CRM-2A
Suitable for low-power applications, high extinction ratios, large incident angles
The transmission axis aligned with the 0° marking line of the rotation mirror mount for easy use

The thin film linear polarizers with an operating wavelength range of 700-1700 nm have anti-reflection coatings on both air-contacting surfaces of the two substrates for the corresponding wavelength bands. The polarizers with retaining ring mounts are installed in rotation mirror mounts CRM-05AS, CRM-1AS, and CRM-2A, with clear apertures of Ø10 mm, Ø21.5 mm, and Ø45 mm respectively. These thin film linear polarizers are suitable for low-power applications and provide high extinction ratios when used to generate the linearly polarized light, with a wide incidence angle range of ±20°. All three products have their transmission axes aligned to the 0° marking line and are fixed with adhesive for convenient use by customers.

The Thin Film linear polarizer with the rotation mirror mount is assembled using the post

Product Model	Operating Wavelength	Clear Aperture	Mechanical housing dimensions	Unit Price	Lead Time
FLP13-NIR-CRM	700 nm-1700 nm	Ø10 mm	25.0 mm×25.0 mm×11.0 mm	$165.52	5 weeks
FLP25-NIR-CRM	700 nm-1700 nm	Ø21.5 mm	42.0 mm×42.0 mm×15.9 mm	$226.05	5 weeks
FLP51-NIR-CRM	700 nm-1700 nm	Ø45 mm	76.0 mm×76.0 mm×20.4 mm	$543.49	8 weeks