High Precision Diffractive Aspheric Lenses

A diffractive aspheric lens combines the properties of aspheric surfaces and diffractive optical elements (DOEs) to improve optical performance by minimizing aberrations, such as spherical and chromatic aberrations. These lenses are widely used in advanced optical systems for applications like infrared imaging, aerospace, and defense.

Key Features and Advantages

Aberration Correction	Aspheric surfaces correct spherical aberrations by deviating from a purely spherical shape. Diffractive structures reduce chromatic aberrations by introducing wavelength-dependent phase shifts
Compact and Lightweight Design	By combining aspheric and diffractive properties, these lenses enable miniaturized optical systems without compromising performance
High Precision Manufacturing	Fabrication methods like diamond turning and Magnetorheological Finishing (MRF) ensure high accuracy in surface profiles, achieving diffraction-limited performance
High Diffraction Efficiency	Diffractive aspheric lenses can achieve efficiencies exceeding 99%, depending on the design wavelength and material

Applications

Infrared Systems: Germanium-based diffractive aspheric lenses are commonly used in medium-wave infrared (MWIR) systems to provide high image quality with minimal aberrations.
Fiber Optics: Ideal for collimating or coupling light into fibers, especially for monochromatic sources where diffraction-limited performance is required2.
Imaging Systems: Used in high-resolution imaging applications due to their ability to correct multiple aberrations simultaneously5.

Factory Standard

Material	Germanium
Diameter	26 mm
Central Thickness	1.75 mm
Total Thickness	2.495 mm
Coating	Upon request
Average Transmittance (Tavg)	≥98% @ 3.6 – 4.9 μm, incidence angle 0° – 20°
Average Reflectance (Ravg)	≤0.3% @ 3.6 – 4.9 μm, incidence angle 0° – 20°

Custom Diffractive Aspheric Lenses

Diffractive aspheric lenses are indispensable in modern optical systems where precision, compactness, and aberration correction are critical. Custom Aspheric Lenses play a vital role in high-precision imaging, from various fields of applications.

Avantier offers diffractive aspheric lenses with superior performance and enable compact optical assemblies. For custom aspheric solutions, contact us.

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High Precision Diffractive Aspheric Lenses

Key Features and Advantages

Aberration Correction

Aspheric surfaces correct spherical aberrations by deviating from a purely spherical shape.

Diffractive structures reduce chromatic aberrations by introducing wavelength-dependent phase shifts

Compact and Lightweight Design

By combining aspheric and diffractive properties, these lenses enable miniaturized optical systems without compromising performance

High Precision Manufacturing

Fabrication methods like diamond turning and Magnetorheological Finishing (MRF) ensure high accuracy in surface profiles, achieving diffraction-limited performance

High Diffraction Efficiency

Diffractive aspheric lenses can achieve efficiencies exceeding 99%, depending on the design wavelength and material

Applications

Factory Standard

Material

Germanium

Diameter

26 mm

Central Thickness

1.75 mm

Total Thickness

2.495 mm

Coating

Upon request

Average Transmittance (Tavg)

≥98% @ 3.6 – 4.9 μm, incidence angle 0° – 20°

Average Reflectance (Ravg)

≤0.3% @ 3.6 – 4.9 μm, incidence angle 0° – 20°

Custom Diffractive Aspheric Lenses

Diffractive aspheric lenses are indispensable in modern optical systems where precision, compactness, and aberration correction are critical. Custom Aspheric Lenses play a vital role in high-precision imaging, from various fields of applications.

Avantier offers diffractive aspheric lenses with superior performance and enable compact optical assemblies. For custom aspheric solutions, contact us.

WE CAN HELP YOU!