Products CaF2(Fluorite)

Characteristic

Characteristic
Characteristic
Characteristic
  • The transmitted wavelength region ranges widely from vacuum ultraviolet to infrared.
  • The crystalline material shows a low dispersion and also anomalous dispersion. This material can be used to produce an apochromatic lens in combination with other optical materials.
  • The crystalline material is physically and chemically stable, and is resistant to water and chemicals.

Canon Video Square

Canon Video Square

Internal Transmittance

Internal Transmittance

Physical Properties

Basic Physical Properties
Name of crystal material CaF2
Transmittance wavelength range(µm) 0.13~10
Color Colorless
Density (g/cc) 3.18
Melting point (℃) 1418
Solubility (g/100gH2O) (20℃) 0.00151
Molecular weight 78.08
Crystal system Cubic
Crystal structure Fluorite type
Cleavage plane {111}
Physical Properties
Thermal Properties
Thermal Expansion
α (/℃)(20℃~60℃)
24×10-6
Thermal Conductivity
λ (cal/cm・sec・℃)
2.41×10-2
Specific Heat
Cp (cal/g・℃)
0.211
Mechanical Properties
Knoop Hardness Hk 158.3
Young’s Modulus
E (GPa)
75.8
Modulus of Rigidity
G (GPa)
33.77
Poisson Ratio 0.26

Application

Telephoto lens for digital single-lens reflex camera

Telephoto lens for digital single-lens reflex camera

Astronomical telescope

Astronomical telescope

Television camera

Television camera

Ultraviolet microscope

Ultraviolet microscope

Pamphlet Download(PDF)

Pamphlet