IR Aspheric Lens Infrared Optics Infrared Lens IR Optics IR Lens

IR Aspheric Lenses

Aspheric lenses eliminate spherical aberration, bring down system size or weight and simplify assembly processing than conventional spherical lenses. These lenses are widely used in imaging, security, and industrial applications.

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Part NumberDia (mm)EFL (mm)MaterialCoating
LSIA-25-12.525.012.5SiliconOptions Available
LSIA-25-2525.025.0SiliconOptions Available
LSIA-25-5025.050.0SiliconOptions Available
LGEA-25-12.525.012.5GermaniumOptions Available
LGEA-25-2525.025.0GermaniumOptions Available
LGEA-25-5025.050.0GermaniumOptions Available
LZSE-25.4-12.725.412.7Zinc SelenideOptions Available
LZSE-25.4-25.425.425.4Zinc SelenideOptions Available
LZSE-25.4-50.825.450.8Zinc SelenideOptions Available

Material: Si, Ge, ZnS, ZnSe, Chalcogenides
Dimension Tolerance: +0/-0.13mm
Thickness Tolerance: ±0.2mm
Surface Quality: 60/40
Clear Aperture: >90%
Edge Thickness Variation: ≤3 arc min
Aspheric Accuracy: ≤1µm P-V
Focal Length Tolerance: ±2%
Coating: Options Available

Aspherical Lens & Spherical Lens Diagram

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An aspheric lens is a type of optical lens that has a non-spherical surface. Unlike traditional spherical lenses that have a constant curvature across their surface, aspheric lenses have a varying curvature that allows them to correct for aberrations and improve image quality. 

One advantage of aspheric lenses is that they can reduce the number of lenses needed in an optical system, making them lighter and more compact. Additionally, aspheric lenses can be designed to have a wider field of view.

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