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Date Announced: 14 Apr 2017
Our Aspheric lens surfaces are used to correct spherical aberration (where the converging light from a lens does not have a common focal point, resulting in a distorted image) in lasers and imaging. Traditional spherical lenses cannot collimate light effectively because even small angles of incidence can produce spherical aberrations. This can mean that several components may be required to get the desired result. The non-spherical surface of an aspheric lens allows a single component to effectively focus or collimate even highly divergent emissions, potentially replacing a multi-lens system with a single aspheric lens.
See below is an example of our new range of stock Aspheric lens, Precision grade,4.5mmf.l x 4.95mm aperture
Code: LAQ0406
Specification
Coating : AR Coated
Focal length (mm) : 4.51
Back FL (mm) : 2.91
Overall dia. (mm) : 6.33
Lens aperture (mm) : 4.85
C/T (mm) : 3.00
Wavefront dist.(waves RMS) :
Numerical Aperture : 0.54
Material : S-NPH1
Our glass aspheric lenses listed have visible antireflective coating @450-650nm (AV7)
Single layer MgF₂ AR for high index, R.avg<0.2%@ (design wavelength)
Our Aspheric lenses are checked for quality in our state-of-the-art Metrology laboratory using equipment from Trioptics, Varian and Starret allowing us to work to the highest QA standards and meet the tolerance specifications on these precision components.
Contact our technical sales team to discover how Knight Optical’s high quality diamond turned aspherics and superior service can improve your instrumentation and supply chain experience.
UK, Europe, Asia & RoW: E-Mail info@knightoptical.co.uk Tel +44 (0)1622 859444
USA & Canada: E-Mail usasales@knightoptical.com Tel +001 401-583-7846
View our QA and metrology information
Watch our Corporate Video
E-mail: mike.sharpe@knightoptical.com
Web Site: www.knightoptical.com
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