LAQ0505 - Precision grade aspheric lenses AR coated
Description
Traditionally lens surfaces have been sections of a sphere. For many applications this leaves spherical aberration as the dominant defect of any image so created. Aspheric lenses are used to correct these image defects. One solution to this is to have one or both surfaces, departing from the spherical shape. Aspheric lenses can be very effective, focussing or collimating laser beams. Aspheric lenses are polished to a good surface finish but the surface is not spherical and shaped to reduce the aberrations from a single on axis point.
These precision grade aspheric lenses will provide excellent performance over the visible spectrum and NIR applications. The glass aspheric lenses are coated with a single-layer AR coating on high index flint glass achieving high transmission of 98% at the stated wavelength (Typical V coating designed for 550nm).
LAQ0505 - Precision grade aspheric lenses AR coated
Specifications |
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|---|---|
| Diameter: | 6 mm |
| Material: | H-LAK54 |
| Effective Focal Length: | 4.6 mm |
| Numerical Aperture (NA): | 0.53 |
| Wavelength Range: | 350 – 2000 nm |
Features
Mounting options.
Stock lenses can be edged to smaller diameters.
Special AR coatings available on stock lenses.
Applications
Precision aspherical lenses are used in applications such as beam focusing/collimation and Imaging.
For pricing, technical or any other questions please contact the supplier
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How to order?
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Ships from:
United Kingdom
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Sold by:
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On FindLight:
since 2016
Frequently Asked Questions
Traditional spherical lenses cannot collimate light effectively because even small angles of incidence can produce spherical aberrations. Aspheric lenses have a non-spherical surface that allows a single component to effectively focus or collimate even highly divergent emissions.
All products are tested in Knight Optical's state of the art metrology laboratory by highly trained technicians to ensure compliance with the specification. Parts are then sent to the QA team to be cleaned and checked for surface imperfections before dispatch.
Aspheric lenses can be custom-made to a range of sizes from 3mm to 200mm+ in diameter and with a focal length of 3mm to 1000mm+. They can be AR coated for UV/VIS/NIR and made from Schott glass or equivalent.
Aspheric lenses can potentially replace a multi-lens system with a single aspheric lens, saving space and cost. They can also provide excellent performance over the visible spectrum and NIR applications.
Aspheric lenses are used to correct spherical aberration in lasers and imaging.