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Oct162026
Lenses & Optical Components how to choose infrared optical material ge si znse zns sapphire

How to Choose an Infrared Optical Material

Lenses & Optical ComponentsBy giai2026-10-16

Short answer: To choose an infrared optical material, start from the operating waveband and detector, then confirm low absorption at the real thickness and temperature. Next, account for refractive index (reflection loss, AR coating, design freedom) and dn/dT (thermal focus shift). Finally, match hardness and…

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Oct162026
Applications how to choose a germanium lens

How to Choose a Germanium Lens for Infrared Imaging

ApplicationsBy giai2026-10-16

Choosing a germanium lens starts with the infrared system requirements, not the diameter or lens shape. The most important factors are the detector wavelength range, effective focal length, f-number, field of view, coating performance, operating temperature, and optical inspection criteria. Germanium (Ge) is widely used…

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