Product News: Optics & Photonics

Germanium Meniscus Lenses offer spherical correction.

Press Release Summary:

Germanium Meniscus Lenses offer spherical correction.

Jun 19, 2014 - Intended for demanding IR applications, TECHSPEC® Lenses are manufactured from Germanium, which offers transmission range of 2–16 µm, density of 5.33 g/cm³, and Knoop Hardness of 780. Material is inert to air, water, alkalis, and all acids, with exception of nitric acid. Available uncoated or with anti-reflection coating, lenses comes in 25 or 50 mm diameters with focal lengths from 25–100 mm. Applications include IR imaging or surveillance, remote sensing, or IR spectroscopy.

Original Press Release

TECHSPEC Germanium Meniscus Lenses Provide Superior Spherical Correction

Press release date: Jun 17, 2014

Feature Durable Design for Demanding IR Applications

Barrington, N.J. – Edmund Optics (EO), the premier provider of optical components, introduces its new TECHSPEC® Germanium Meniscus Lenses. These lenses feature a durable design that is ideal for use in a wide variety of demanding infrared (IR) applications, including IR imaging or surveillance, remote sensing or IR spectroscopy.

Manufactured from rugged Germanium

TECHSPEC Germanium Meniscus Lenses are manufactured from Germanium, which is a rugged, durable material with a broad transmission range and a high index of refraction. Germanium has a transmission range of 2 - 16 μm and is opaque in the visible part of the spectrum, making it ideal for IR laser applications. The material is even inert to air, water, alkalis and all acids, with the exception of nitric acid. With a density of 5.33 g/cm3 and a Knoop Hardness of 780, nearly twice that of Magnesium Fluoride, Germanium is an ideal material for making rugged, durable IR optics.

Wavelength range of 2-16 μm

TECHSPEC Germanium Meniscus Lenses feature a wavelength range of 2-16 μm. They offer outstanding spherical correction and smaller spot size than comparable lenses. TECHSPEC Germanium Meniscus Lenses are available uncoated or anti-reflection (AR) coated for increased performance in the designated coating wavelength range. Eighteen different RoHS-compliant lens varieties are offered in 25 mm or 50 mm diameters and focal lengths from 25 mm to 100 mm, either uncoated or coated for the 3-5 μm or 8-12 μm wavelength range. TECHSPEC Germanium Meniscus Lenses are in-stock and available for immediate delivery for fast turnaround and excellent value.

About EO:
Edmund Optics (EO) is a leading producer of optics, imaging, and photonics technology for R&D, electronics, semiconductor, pharmaceutical, biomedical, and military markets around the globe. EO is the world's largest supplier of off-the-shelf optical components. Customers can purchase items by contacting EO at 1-800-363-1992, via the catalog, or via the website at

Company Contact:
Kirsten Bjork-Jones
Director Global Marketing Communications
Edmund Optics, Inc.
101 East Gloucester Pike
Barrington, NJ 08007 U.S.A.
Phone: 1-800-363-1992
Fax: 1-856-573-6295

European Contact:
Agnes Huebscher
Director European Marketing
Edmund Optics
Zur Giesserei 8
76227 Karlsruhe, Germany
Tel.: +49 (0)721-62737-38
Fax: +49 (0) 721 6273750