Custom IR Optics ZnSe Plano-concave Lenses

ZnSe plano-concave lenses are an optical element made of ZnSe material. They are negative lenses that can disperse light. The applications of these lenses include biomedical and military applications, as well as applications used with high-power CO2 lasers. In addition, they provide sufficient transmittance in the visible region to allow the use of red alignment beams.  Zinc selenide has low absorption and thermal shock resistance, and its transmission band is wide (600nm-16μm). It has low absorption in the red light part of the visible spectrum, so it is often used in optical systems that combine CO2 lasers (working at 10.6μm) with inexpensive helium-neon lasers.

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Multiple Customization Options

Custom Material & Substrate

We provide one of the best substates for your optics, including infrared materials, visible optical glass, chalcofenide glass, plastic, metel, and more on demand.

Custom Shape & Structure

From general to special surface profiles, we are able to achieve high quality. Our products include flat, spherical, aspherical, and curved optics, among others.

Custom Coating

Our coatings are precise and in-house, including anti-reflection, multi-band, conductive, edge filter, variable, metallic, dielectric coatings, and more finishes.

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Relevant Applications & Markets


Custom optics for laser cutting, drilling, engraving, and more.
Optical parts with low absorption in the infrared spectral region.
Optics with reliable absorption or transmission properties.
Custom objective lens and ocular lens for night vision.
Custom spheres, aspheres, curved optics for detectors.
Precise optics for gun laying, hand-held devices and more.
MWIR and LWIR optics with light weight to support the system.
Custom optics with high transmission and blocking level.
Highly functional IR optics for imaging in different industries.

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