Germanium – Ge
lenses, windows, mirrors, filters and prisms
A Germanium lens has a high refractive index making it essential to add anti-reflection coating to improve its transmission. The transmission of Germanium lenses and windows is highly sensitive to temperatures that are above 70°C becoming opaque. Germanium has a rugged appearance and is especially durable making it suitable for external Infrared applications.
A Germanium window is highly efficient, in fact, it’s so efficient you could take a photo using the lens – our Germanium lenses are most commonly used to focus infrared light and can be used for camera lenses.
If you’re looking for a Germanium glass, you can rest assured that our products will provide you with the best value for money because they have a high precision rate and can be customised to suit your needs specifically.
|Transmission Range||1.8 – 23.0 µ|
|Melting Point (°)||942|
|Reflection Loss||52.9% (10µ) for 2 surfaces|
|Thermal Conductivity (cal/cm sec°C)||0.14 (20°C)|
|Thermal Expansion coefficient (/°C)||5.5x10-6(25°C)|
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