Germanium Lenses

Germanium lenses are used for the manufacture of long-life IR systems. They are ideal for focusing IR radiation, which is why they are often used in camera lenses.

International Shipping for Germanium Lenses

We specialize in the manufacturing of custom laser optics. Germanium lenses are built from one of the toughest materials in the industry. They are widely used in IR lasers and very harsh environments. They are durable and they have extremely low chromatic aberration

Pleiger Laseroptik is widely known for quality, reliability and a long tradition in the manufacturing of lenses, mirrors, optical windows and any sort of optical component. Germanium however is a very special substrate with unique properties.

Germanium is a rare resource

It is one of the toughest materials used for lenses.

Especially manufactured for the IR spectrum and lasers.

Germanium lenses have very low chromatic aberration.

Trust builds over decades

We have been cooperating with scientific institutes and organizations for years. We work together very closely with research facilities and our quality is driven by continuous improvement, research and development.

Material properties

Area of application µm µm

Density g/cm³ 5,33

Hardness level 780

Applications and advantages

Germanium lenses are anti-reflective coated with a PVD coating to achieve optimum transmission. Germanium optics are used in IR systems (FLIR) in the 2-12 µm range.

Germanium has very low chromatic aberration, is characterized by maximum mechanical stability and hardness, is suitable for IR systems and IR lasers and therefore has a very wide range of applications.

All lenses are individually manufactured by us, with the highest level of experience and the competent expertise of Pleiger Laseroptik.

A rare resource

Germanium has become a very rare resource. We provide you with lenses worldwide.

All shapes ans sizes

Every lens that we build is custom work. Get in touch with us to order lenses specific to your needs.

Individually manufactured

The lenses are individually manufactured by us, with the highest level of experience and the competent expertise of Pleiger Laseroptik.

Practical relevance of the substrate or lenses

Quality characteristics of Germanium

Germanium lenses are mostly used in aerospace and defense systems as well as in medical technology and general infrared measurement technology. Germanium optics can be used very well as lenses or windows. With an additional, perfectly matched multilayer coating, they also function as pass or band filters;

Thermodynamic restrictions

The optical properties of germanium are significantly influenced by the temperature. As the transmission decreases with increasing temperature, germanium optics can only be used at temperatures below 100°C.

Versatile use due to high robustness

Germanium is always used when robust optics are required. It is extremely hard (Knoop hardness of ~ 780) and has a density of 5.33 g/cm³. In addition, germanium does not react with air, water, bases and many acids, which makes this material very versatile.

Practical relevance of the substrate or lenses

Get in touch now

If you have any specific or general questions about our lenses, please don't hesitate to get in touch with us. The easiest way is to use our general form. If you have more detailed inquiries, write us a message to info@pleiger-laseroptik.de - you can as well call us during our German business hours: +49 2324 398-401.

We generally respond very fast during our business hours, otherwise you can expect us to get back to you within 24 hours.

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