Sample quantities of OSVR custom dual asphere optics available for purchase

Allows developers to conveniently and inexpensively experiment with high-performance optics that are optimized for 5.5″ smartphone displays

COLUMBIA, MD (Aug 17, 2015) – Sensics, the leader in open-source virtual reality and founding contributor to OSVR, announced today that it has made developer samples of its dual-element custom asphere optics available for convenient purchase on eBay.

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Ray tracing diagram of the dual-element design available for purchase

Designed by Sensics and used in the OSVR Hacker Developer Kit version 1.2, the optics have the following key characteristics:

  • Horizontal field of view: 90 degrees
  • Focal length: 35mm
  • TTL (distance from screen to the optical surface closest to the eye): 41mm
  • Total weight: 17.4 grams
  • Diameter: 32.4mm (lens 1), 43.2mm (lens 2)
  • Eye relief: 13mm
  • Eye box: 11mm
  • Ability to compensate for diopter by moving both elements closer or farther from the screen
  • -13.5% geometric distortion

The lenses are made of lightweight optical-grade plastic. One lens is molded from Zeonex F52R and the other is molded from Polystyrene. They have been also described on the RoadToVR blog: the dual-element optics of the OSVR HDK

A dual element design provides significantly better image than a typical single-element asphere. This can be seen in the image below. Geometric distortion is much lower. Focus is much clearer towards the edge of the image. Color aberration is minimized.

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Comparison of image quality through the Sensics dual-element optics and a typical single asphere design

By making these lenses available for purchase by companies, hobbyists and researchers, Sensics is making it easy to determine if these or similar high-quality designs should be used in mass-production products.

Sample quantities of the lenses can now be purchased on eBay. Significant discounts are available for large quantities. Contact Sensics for details.

Additional off-the-shelf designs are available as well as the opportunity to create new custom designs to suit particular requirements.

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