25.4mm Calcium Fluoride Plano Convex Lens, 50mm Focal Length

SLCFU-25.4-50P

Calcium fluoride (CaF2) is a crystal which has excellent transmission characteristics in a wide wavelength range from ultraviolet (200nm) to near-infrared (8μm).
◦Impurities and crystal defects were reduced, and the transmission characteristics in the ultraviolet region were increased. CaF2 is used for the range from the ultraviolet to the infrared.
◦When compared with other crystals, CaF2 has high durability to moisture, and it can be treated the same as the general optical elements.
◦Since CaF2 is isotropic crystal, birefringence (polarization characteristics) does not occur.
More Information
Name 25.4mm Calcium Fluoride Plano Convex Lens, 50mm Focal Length
Weight 0.0050kgs
Standard Coatings Available No
Guide
  • It is available with an AR coating to reduce the transmission loss at the requested wavelength.
  • It is also available for products with different size and focal lengths that are not listed in on the website or in the catalog.
Attention
  • It may be broken and be cleavaged by a sudden temperature change and shock. CaF2 has low hardness and scratch upon contact with metal and glass. Please use very carefully.
  • There is not an anti-reflection coating on the surfaces and the loss due to surface reflection (3% per surface) results in transmittance of about 94%.
Diameter 25.4mm
Focal length 50mm
Material Optical CaF2 Crystal
Design Wavelength 5μm
Coating Uncoated
Surface reflectance 3% (per one surface)
Shape Type Plano-convex spheric (Polished surface on both sides)
Centration <3′
Clear aperture 90% of the diameter
Surface Quality (Scratch-Dig) 60-40
Diameter φ25.4mm
Focal length f 50mm
Back focal length fb mm
Edge thickness te mm
Center thickness tc mm
In stock
SKU
SLCFU-25.4-50P
$387.00

Delivery in : 6-12 weeks

Calcium fluoride (CaF2) is a crystal which has excellent transmission characteristics in a wide wavelength range from ultraviolet (200nm) to near-infrared (8μm).