75mm Diameter, MgF2 Coated, B270 Window

Abbe Number (v_d):

58.3

Diameter (mm):

75.00

Dimensional Tolerance (mm):

±0.25

Thickness (mm):

3.00

Coating:

MgF₂ (400-700nm)

Coating Specification:

R_avg ≤1.75% @ 400 - 700nm

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

9.4

Knoop Hardness (GPa):

542

Young's Modulus (GPa):

71.5

Density (g/cm³):

2.56

Edges:

Ground, Maximum 0.25 Edge Chip

Index of Refraction n_d:

1.522

Poisson's Ratio:

0.22

Substrate:

B270

Surface Flatness:

1λ

Surface Quality:

60-40

Type:

Protective Window

Typical Energy Density Limit:

10 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 700

Regulatory Compliance

RoHS 2015:

Compliant

Reach 209:

Compliant

Product Family Description

Large Selection of Sizes
Available Uncoated or with a MgF₂ Anti-Reflection Coating
Custom Sizes Available for Volume OEM Requirements

TECHSPEC® B270 Windows are ideal for commercial applications requiring a thin substrate. Available uncoated or with a MgF₂ Anti-Reflection coating, these windows are often used as a protective element between two environments. Custom sizes and coatings are available for OEM applications.

Title	Stock Number	Price	Buy
108.0mm Max Optic Dia., Jaw Clamp	#53-038	$549.00 Qty 5+ $494.25 Request a Quote	In Stock ×
108.0mm Max Optic Dia., Jaw Clamp and 6" Kinematic Mount	#53-040	$825.00 Qty 5+ $783.75 Request a Quote	In Stock ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder	#03-666	$95.25 Qty 10+ $85.75 Request a Quote	In Stock ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount	#03-670	$86.75 Qty 10+ $78.25 Request a Quote	In Stock ×
75.0/76.2mm Optic Dia., Optical Cell Assembly	#36-466	$131.25 Qty 10+ $118.25 Request a Quote	In Stock ×
75.0/76.2mm Optic Dia., Optical Cell Kinematic Mount	#53-965	$370.00 Qty 10+ $359.00 Request a Quote	In Stock ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp	#16-078 New ×	$340.00 Qty 5+ $306.00 Request a Quote	In Stock ×
75.0/76.2mm Optic Dia., E-Series Kinematic Mount	#15-868 New ×	$198.00 Qty 10+ $188.00 Request a Quote	In Stock ×

75mm Diameter, MgF₂ Coated, B270 Window

Regulatory Compliance

Product Family Description

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