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12.5mm Diameter, 785nm V-Coat, λ/4 N-BK7 Window

Name: 12.5mm Diameter, 785nm V-Coat, λ/4 N-BK7 Window
Brand: TECHSPEC
SKU: 64-048
Price: €99,50 EUR

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Stock #64-048 14 In Stock

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€99,50

Volume Pricing
Qty 1-5	€99,50 each
Qty 6-25	€80,00 each
Qty 26-49	€74,50 each
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Specifications

General

Type:

Laser Line Window

Physical & Mechanical Properties

Clear Aperture CA (mm):

11.25

Diameter (mm):

12.50 +0.00/-0.25

Thickness (mm):

3.00 ±0.20

Parallelism (arcmin):

≤1

Bevel:

Protective as needed

Clear Aperture (%):

Edges:

Fine Ground

Poisson's Ratio:

0.21

Young's Modulus (GPa):

Knoop Hardness (kg/mm²):

610.00

Optical Properties

Coating:

Laser V-Coat (785nm)

Design Wavelength DWL (nm):

785

N-BK7

Index of Refraction (n_d):

1.516

Surface Quality:

60-40

Abbe Number (v_d):

64.17

Coating Specification:

R_abs <0.25% @ 785nm

Surface Flatness (P-V):

λ/4

Material Properties

Density (g/cm³):

2.51

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

7.1 (-30 to +70°C)
8.3 (+20 to +300°C)

Regulatory Compliance

RoHS 2015:

Compliant

Certificate of Conformance:

View

Reach 235:

Compliant

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

Custom dimensions, materials, coatings, and more
High-precision surface quality and flatness
Tight tolerances and complex geometries
Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Product Details

<0.25% Reflection at Design Wavelength
Coatings Available for HeNe, Diode, and Nd:YAG Laser Sources
Precision N-BK7 Substrate
Also Available Uncoated, MgF₂ Coated and VIS 0° Coated

TECHSPEC® λ/4 N-BK7 Laser Line Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Anti-reflection coatings provide <0.25% reflection at the coating's design wavelengths.