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OPCFU/OPCF
Diameter φD
Thickness t
Wavelength range
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The CaF2 (Calcium Fluoride) crystal windows offer superior transmission in broad wavelength range from vacuum ultraviolet (130nm) to Infra-red (8μm).

◦These CaF2 windows contain low impurities and assure a high transmission in the UV regions.
◦High durability in a high humidity environment when compared to other glass materials.
◦CaF2 is an isotropic type of optics, there is no birefringence.

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Technical Data
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Guide

▶We also offer AR coating and Protective layer coating on substrates.
▶For product sizes and wedges which are not listed on our website or in our catalog, please contact our Sales Division with your requests.

Attention

▶CaF2 are soft and susceptible to cracking as well as cleavage if subjected to rapid changes in temperature. They should be handled accordingly.
▶Windows are offered standard with no AR coating and provide transmittance of 94% after loss of 3% for each surface.
▶Wavefront reflection and transmission is not guaranteed; for interferometer and high precision optical application, please contact our Sales Division with your custom requests.

Common Specifications
MaterialOptical Calcium Fluoride Crystal (CaF2)
Parallelism<3′
Surface Quality
(Scratch-Dig)
60-40
Clear aperture90% of the diameter
Outline Drawing

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Schematic

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Physics

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Typical Transmittance Data

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T: Transmission
Spec
Compare
Part Number
Add to cart Cart
    JP Yen Stock Qty
OPCFU-20C01-P
OPCFU-20C02-P
OPCFU-25C02-P
OPCFU-25C03-P
OPCFU-30C02-P
OPCFU-30C03-P
OPCFU-40C03-P
OPCFU-40C04-P
OPCFU-50C03-P
OPCFU-50C05-P
OPCF-20C01-P
OPCF-20C02-P
OPCF-25C02-P
OPCF-25C03-P
OPCF-30C02-P
OPCF-30C03-P
OPCF-40C03-P
OPCF-40C04-P
OPCF-50C03-P
OPCF-50C05-P

φ20mm

1mm

130 - 8000nm

φ20mm

2mm

130 - 8000nm

φ25mm

2mm

130 - 8000nm

φ25mm

3mm

130 - 8000nm

φ30mm

2mm

130 - 8000nm

φ30mm

3mm

130 - 8000nm

φ40mm

3mm

130 - 8000nm

φ40mm

4mm

130 - 8000nm

φ50mm

3mm

130 - 8000nm

φ50mm

5mm

130 - 8000nm

φ20mm

1mm

300 - 8000nm

φ20mm

2mm

300 - 8000nm

φ25mm

2mm

300 - 8000nm

φ25mm

3mm

300 - 8000nm

φ30mm

2mm

300 - 8000nm

φ30mm

3mm

300 - 8000nm

φ40mm

3mm

300 - 8000nm

φ40mm

4mm

300 - 8000nm

φ50mm

3mm

300 - 8000nm

φ50mm

5mm

300 - 8000nm

RoHS  

¥24,000

IN STOCK
RoHS  

¥24,000

LOW
RoHS  

¥26,000

IN STOCK
RoHS  

¥26,000

IN STOCK
RoHS  

¥28,000

LOW
RoHS  

¥28,000

LOW
RoHS  

¥36,000

LOW
RoHS  

¥41,000

LOW
RoHS  

¥47,000

IN STOCK
RoHS  

¥50,000

IN STOCK
RoHS  

¥4,000

CONTACT
US
RoHS  

¥4,000

CONTACT
US
RoHS  

¥5,500

LOW
RoHS  

¥5,500

IN STOCK
RoHS  

¥9,000

IN STOCK
RoHS  

¥9,000

IN STOCK
RoHS  

¥18,000

LOW
RoHS  

¥18,000

LOW
RoHS  

¥26,000

LOW
RoHS  

¥34,000

LOW