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Knight Optical's Diamond Turned Aspheric Lenses for Virtual Reality Headsets

14 Apr 2017

Virtuality Reality headsets which are typically know as HMDs (head mounted displays) consist of a pair of lenses which typically forms an image directly into the eyes of the wearer. The lenses shape and focus the picture for each eye thus creating a stereoscopic 3D image

Optical aberration typically occur in common spherical singlet lenses which results in an image that appears distorted. Consequently HMD manufacturers have started to incorporate aspherical lenses which can replace multiple element systems. Aspheric lenses allows a single component lens to collimate or focus highly divergent rays, potentially replacing a multi-lens system.

Knight Optical offers diamond turned aspherics from a range of visible materials including Quartz, BK7, UV fused silica (UVFS), SF11, acrylic and plexiglass.

Typical specs:
Material:                                                       
Quartz, BK7, UV fused silica (UVFS), SF11, acrylic and plexiglass.
Diameter:                                                     Up to 200mm dia +0, -0.02mm
Thickness:                                                    +/- 0.2mm
Flatness:                                                      < 1/2 wave over 90% aperture
Surface Quality:                                         < 40-20 scratch/dig
Parallelism:                                                5 arcmin
Coating:                                                     AR/AR 400-700nm Ravg <0.5%

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

CONTACT DETAILS
Knight Optical Ltd
Roebuck Business Park
Harrietsham
Kent
ME17 1AB
United Kingdom
Tel: 44 (0)1622 859444
Fax: 44 (0)1622 859 555
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