Abbe Number (v_d):

94.99

Axis Orientation:

Random

Bevel:

Protective as needed

Clear Aperture (%):

85

Clear Aperture CA (mm):

21.59

Diameter (mm):

25.40 +0.0/-0.13

Thickness (mm):

3.00 ±0.13

Coating:

BBAR (2000-5000nm)

Coating Specification:

R_avg <1.5% @ 2000-5000nm
R_abs <3.0% @ 2000-5000nm
R_avg <1.75% @ 2000-4000nm

Coefficient of Thermal Expansion CTE (10^-6/°C):

18.85

Density (g/cm³):

3.18

Edges:

Fine Ground

Index of Refraction n_d:

1.495

Knoop Hardness (kg/mm²):

158.3

Poisson's Ratio:

0.26

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Calcium Fluoride (CaF₂)

Surface Flatness (P-V):

2λ @ 633nm

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

2000 - 5000

Young's Modulus (GPa):

75.8

Wedge Angle:

3° ±0.25

25.4mm Dia., 4mm Thick, 3° BBAR (2000-5000nm) Coated, ISP Optics Calcium Fluoride (CaF₂) Wedged Window

Regulatory Compliance

產品系列說明

25.4mm Dia., 4mm Thick, 3° BBAR (2000-5000nm) Coated, ISP Optics Calcium Fluoride (CaF2) Wedged Window

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Regulatory Compliance

產品系列說明

25.4mm Dia., 4mm Thick, 3° BBAR (2000-5000nm) Coated, ISP Optics Calcium Fluoride (CaF₂) Wedged Window