Interferometer Flat, UVFS, 50.8 mm, 12.7mm Thick, λ/10, 10-5

The 20QB20 Interferometer Flat is ideally suited for use in a laboratory interferometer or as a quality assurance standard. To ensure long-term thermal stability and mechanical accuracy. This 2 inch (50.8 mm) diameter, 12.7 mm thick optic is polished from select UV fused silica. In order to double the utility of the optic, both faces are polished to the same λ/10 figure. Internal fringe patterns are virtually eliminated by a 30 arc min wedge between faces. Surface interferograms, that allow error mapping, are shipped with each flat.

Specifications

Technical Specs

Diameter
50.8 mm
Material
UV Grade Fused Silica
Wavelength Range
195-2100 nm
Surface Flatness
λ/10 @ 632.8 nm
Surface Quality
10-5 scratch-dig
Thickness
12.7 mm
Thickness Tolerance
±0.5 mm
Chamfers
0.38–1.14 mm face width

Chamfers Angle/Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Clear Aperture
Central 80% of diameter
Diameter Tolerance
+0/-0.25 mm
Antireflection Coating
Uncoated
Wedge
30 ±5 arc min

Diameter
50.8 mm
Material
UV Grade Fused Silica
Wavelength Range
195-2100 nm
Surface Flatness
λ/10 @ 632.8 nm
Surface Quality
10-5 scratch-dig
Thickness
12.7 mm
Thickness Tolerance
±0.5 mm
Chamfers
0.38–1.14 mm face width

Chamfers Angle/Tolerance
45° ±15°
Cleaning
See How to Clean Optics
Clear Aperture
Central 80% of diameter
Diameter Tolerance
+0/-0.25 mm
Antireflection Coating
Uncoated
Wedge
30 ±5 arc min

Resources & Downloads

3D Product Models

Download CAD Files

2D Product Drawings

WEDGEDWI-S(71.4 kB, PDF)

Other

20QB20 RoHS Certificate(266.5 kB, PDF)
20QB20_ROHS2-2021.pdf(279.2 kB, PDF)

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