Name: 6.35mm Dia., 0.5mm Thick, 400-1100nm, High Durability AR Coated Sapphire Window
SKU: 18-462
Price: ₹8,918

6.35mm Dia., 0.5mm Thick, 400-1100nm, High Durability AR Coated Sapphire Window

High Durability Anti-Reflection (AR) Coated Sapphire Windows

Stock #18-462 10 to 12 days

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₹8,918

Qty 1-10
₹8,918

Qty 11+
₹8,048

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Abbe Number (v_d):

72.24

Axis Orientation:

Random

Bevel:

Protective as needed

Birefringence (n_o-n_e):

0.008 for Visible Light Orthogonal to Optical Axis

Clear Aperture (%):

Clear Aperture CA (mm):

5.72

Diameter (mm):

6.35 ±0.05

Thickness (mm):

0.50 ±0.05

Coating:

Hardened VIS-NIR (400-1100nm)

Coating Specification:

R_avg <1.5% @ 400 - 1100nm
R_abs <2.0% @ 400 - 1100nm

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

8.8

Density (g/cm³):

3.97

Edges:

Fine Ground

Index of Refraction n_d:

1.77

Knoop Hardness (kg/mm²):

1900

Parallelism (arcmin):

≤3.5

Poisson's Ratio:

0.27

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

Sapphire (Al₂O₃)

Surface Flatness (P-V):

2λ (typical)

Surface Quality:

80-50

Type:

Protective Window

Wavelength Range (nm):

400 - 1100

Young's Modulus (GPa):

435

Coating Abrasion:

Severe, per MIL-C-675C Paragraph 4.5.10

Coating Adhesion:

Per MIL-M-13508C Paragraph 4.4.6

Coating Humidity:

≥24 Hours per MIL-C-675C paragraph 4.5.8

Coating Salt Solubility:

≥24 Hours Immersion per MIL-C-675C paragraph 4.5.7

Coating Salt Spray:

≥24 Hours per MIL-C-675C paragraph 4.5.9

Coating Temperature (°F):

-80 to +160 per MIL-M-13508C Paragraph 4.4.4

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

Achieves Severe Abrasion Requirements of MIL-C-675C
Low Reflection Coatings for 400 - 1100nm or 2000 - 5000nm
Ideal for Harsh Environments Requiring Thin Optics
Uncoated Sapphire Windows are Also Available

High Durability Anti-Reflection (AR) Coated Sapphire Windows are designed for applications requiring the ruggedness of sapphire with AR coatings designed to survive severe abrasion. The AR coatings on these sapphire windows are designed to withstand temperature cycling from -80 to +160°F, salt spray for a continuous period of 24 hours, and salt solubility for an immersion period of 24 hours. Coating designs achieving the severe abrasion requirements of MIL-C-675C for VIS-NIR and MWIR applications are available, making them ideal for use in harsh environments. High Durability Anti-Reflection (AR) Coated Sapphire Windows are used in aerospace, defense, and industrial applications, as well as any optical application requiring thin, durable protective windows.

6.35mm Dia., 0.5mm Thick, 400-1100nm, High Durability AR Coated Sapphire Window

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Regulatory Compliance

Product Family Description