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TECHSPEC^® components are designed, specified, or manufactured by Edmund Optics. Learn More

203.2mm Dia. λ/10 ZERODUR® Optical Flat

Name: 203.2mm Dia. λ/10 ZERODUR® Optical Flat
Brand: TECHSPEC
SKU: 31-394-000
Price: ₹3,51,741

Stock #31-394-000 10 to 12 days

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₹3,51,741

Qty 1-2
₹3,51,741

Qty 3+
₹3,16,593

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Imaging Lens Selector

Surface Flatness (P-V):

λ/10

Abbe Number (v_d):

56.2

Coating:

Uncoated

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

0.1

Diameter (mm):

203.20 +0.00/-1.00

Thickness (mm):

38.10 ±2.5

Diameter (inches):

8.00 +0.00/-0.04

Thickness (inches):

1.50 ±0.10

Clear Aperture CA (mm):

182.90

Color:

Yellow Tint

Construction:

Single Surface

Density (g/cm³):

2.53

Index of Refraction n_d:

1.542

Knoop Hardness (kg/mm²):

620

Parallelism (arcmin):

≤3

Poisson's Ratio:

0.24

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

ZERODUR^®

Surface Quality:

60-40

Type:

Interferometry Window

Young's Modulus (GPa):

90.3

Bevel:

Protective as needed

Regulatory Compliance

RoHS 2015:

Compliant

Reach 211:

Compliant

Certificate of Conformance:

View

Product Family Description

Sizes Ranging from ½" Diameter to 14" Diameter
Each λ/20 Flat 76.2mm and Larger Includes a Certificate of Calibration
Available with Standard Metallic Mirror Coatings: λ/10 and λ/20 Mirrors

TECHSPEC® Single Surface Optical Flats are used as a reference (test plate) against which the flatness of an unknown surface may be compared. Each piece is precision polished by our master opticians and tested on a Zygo interferometer to insure the surface flatness. The secondary surfaces of our single surface flats are pitch polished to window quality for viewing the interference pattern. TECHSPEC Single Surface Optical Flats ship in a durable storage case for permanent protection. λ/20 flats that are 76.2mm or larger also include a certificate of calibration.

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