Optical Window, Calcium Fluoride, 20.0 mm Dia., 2.0 mm thick, Uncoated

The CAW16 is a 20.0 mm in diameter and 2.0 mm thick Calcium Fluoride window. Calcium fluoride has a wide spectral range with high transmission (above 90%) between 0.25 μm and 7 μm, making it an excellent choice for deep UV to IR applications. CaF₂ is also an ideal choice for excimer laser optics due to its low absorption and high damage threshold. For selected applications CaF₂ can also be used without an anti-reflective coating as it has a low index of refraction leading to a low refracted light from the second surface.

Specifications

Technical Specs

Diameter
20.0 mm
Material
Vacuum UV Grade Calcium Fluoride
Antireflection Coating
Uncoated
Surface Flatness
λ/2 @ 632.8 nm
Surface Quality
40-20 scratch-dig
Thickness
2.0 mm

Parallelism
< 1 arc minute
Cleaning
See How to Clean Optics
Clear Aperture
Central 90% of diameter
Diameter Tolerance
+0.0/-0.1 mm
Wavelength Range
250-7000 nm

Diameter
20.0 mm
Material
Vacuum UV Grade Calcium Fluoride
Antireflection Coating
Uncoated
Surface Flatness
λ/2 @ 632.8 nm
Surface Quality
40-20 scratch-dig
Thickness
2.0 mm

Parallelism
< 1 arc minute
Cleaning
See How to Clean Optics
Clear Aperture
Central 90% of diameter
Diameter Tolerance
+0.0/-0.1 mm
Wavelength Range
250-7000 nm

Resources & Downloads

3D Product Models

2D Product Drawings

CAW16 Zemax File(5.2 kB, ZMX)
90040232A.pdf(65.7 kB, PDF)

Other

CAW16 RoHS Certificate(701.2 kB, PDF)

Related Products

Similar

Description	Compatibility
Parallel Optical Window, UV Fused Silica, 20.0 mm, λ/10, Uncoated	UNIVERSAL	Learn More
Optical Window, Magnesium Fluoride, 25.0 mm Diameter, 3.0 mm Thick	UNIVERSAL	Learn More
Optical Window, Zinc Selenide, 20.0 mm Diameter, 2.0 mm Thick, 3-12 µm	UNIVERSAL	Learn More

Compatible

Description	Compatibility
Variable Size Lens Mount, 5.0-46.2 mm, Thumbscrew Support Arms	UNIVERSAL	Learn More
Variable Size Lens Mount, 12.7-35 mm, 40 TPI XY Adjusters	UNIVERSAL	Learn More
Lens Mount, Self-Centering, 0.125-1.063 in. Diameter Lenses	IMPERIAL	Learn More
Lens Mount, Self-Centering, 3.2-27 mm Diameter	METRIC	Learn More
V-Groove Lens Holder, 0.25 to 1.25 in. Diameter Lenses	UNIVERSAL	Learn More

Need help?

Contact an Applications Specialist by sending us an email