Aspherical lens

Aspherical lens

The aspheric mirror can image within the wavelength range of 0.8-12um, without interference from weather changes and light conditions, with stable imaging, clear image quality, and small aberration.

Application:
It is mainly used in night imaging, instrument flaw detection, infrared thermal imager, infrared temperature measurement, infrared distance measurement and other fields.

As an aspherical lens processing manufacturer, Coligh Optics is well-equipped with advanced single-point turning, testing, and measuring equipment, as well as a team of experienced engineers and technicians. This allows us to offer a range of off-the-shelf products, as well as custom-designed products tailored to meet the specific needs of our customers.

Through our advanced equipment and skilled workforce, we are able to optimize our lens processing to ensure the highest levels of precision and accuracy. Our single-point turning process, for example, involves using a diamond tool to shape the lens surface to the required shape, while our testing and measuring equipment allows us to verify the quality and performance of each lens.

Our team of optical engineers are also available to work with customers to develop custom-designed products, based on their specific requirements. By working closely with our customers, we are able to create lenses that are optimized for their unique applications, ensuring the best possible performance and results.

 

Our aspherical lens custom capability:

 

     Material

  

Processing Parameter

                               Precision grade
Normal Medium Custom
 

Monocrystalline silicon

Single crystal germanium

Chalcogenide glass

Zinc selenide

Zinc sulfide

Optical glass

Quartz

Calcium fluoride

 

 Thickness allowance

±0.5mm

 ±0.1mm

-0.02mm
 Size allowance ±0.5mm ±0.1mm ±0.02mm
Eccentricity 3′ 1′ 50″
Curvature error 1% 0.6‰ 0.2‰
Surface ( PV ) 1μm 0.5μm 0.2μm
Surface Quality 60/40 40/20 10/5
Effective Aperture ＞90% ＞90% ＞90%
Surface Roughness / / RMS＜0.04μm
Focal length:                                   ±5mm~±1000mm±2%
Diameter:                                        10mm to 75mm+0.0/-0.2mm

 

 

 

 

Examples of the aspherical lens we have been processed:

Model Diameter Focal length Back intercept Center thick Edge

Thickness

 Material Shape R1 R2
A503 40 47.5 9.78 1.5 H-K9L As drawing above Aspherical Flat
A560 7.5 6.6 4.3 3.5 1.1 H-K9L As drawing above Aspherical Flat
A456 56 75.5 13.5 H-K51 As drawing above Aspherical Flat
A555 10 7.6 4 5.5 1.4 H-K9L As drawing above Aspherical Flat
A447 8.9*8.9 8.7 7.8 H-K9L As drawing above Asphercial Flat
A313 12.9 14 10.2 5.7 2.6 H-K9L As drawing above Aspherical Flat
A304R1 9.5 7 2.8 6.5 2.4 H-K9L As drawing above Aspherical Flat
A294 12 10.5 6.7 5.81.9 H-K51 As drawing above Aspherical Flat
A229R7 10*8.5 8 4.2 5.8 2.1 H-K51 As drawing above Aspherical Flat
A304R2 6.7*6.7 7 2.8 6.5 2.4 H-K9L As drawing above Aspherical F

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