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OPGE
Diameter φD
Thickness t
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The Germanium as a mono crystal primarily used in semi-conductor is non-absorptive at 2μm to 20μm IR regions. It is used here as an optical component for IR region applications.

◦These germanium windows do not transmit at 1.5µm region or below, therefore its main application is in the IR regions.
◦Germanium windows can be used in various infrared experiments.

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Technical Data
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Guide

▶For transmittance at visible regions optics, we recommend to use ZnSe IR spectrum windows.
W3152
▶For product sizes and wedges which are not listed on our website or in our catalog, please contact our Sales Division with your requests.

Attention

▶Germanium windows have a shiny metal surface; it reflects and absorbs but does not transmit in the visible regions.
▶Germanium windows surface reflection results in transmittance loss of 42%. (Measured data 1 surface reflection at 35%)

Common Specifications
MaterialSingle Germanium crystal (Ge)
Parallelism<3′
Surface Quality
(Scratch-Dig)
40-20
Clear aperture90% of the diameter
Outline Drawing

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Schematic

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Physics

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Typical Transmittance Data

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T: Transmission

Part Number

Catalog PDF

dxf

STP

IGS

SAT

Zemax

OPGE-30C03-P

OPGE-50C05-P

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Part Number
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    JP Yen Stock Qty
OPGE-30C03-P
OPGE-50C05-P

φ30mm

3mm

φ50mm

5mm

RoHS  

¥27,000

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US
RoHS  

¥81,000

CONTACT
US