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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 11, Iss. 24 — Dec. 1, 2003
  • pp: 3220–3233

Defocusing simulations on a retinal scanning display for quasi accommodation-free viewing

Marc von Waldkirch, Paul Lukowicz, and Gerhard Tröster  »View Author Affiliations


Optics Express, Vol. 11, Issue 24, pp. 3220-3233 (2003)
http://dx.doi.org/10.1364/OE.11.003220


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Abstract

The limited depth of focus (DOF) is one of the main problems of today’s head mounted displays. This paper investigates ways to overcome this drawback by using the retinal scanning technology. Based on an accommodation-dependent schematic eye model the contrast function of a retinal scanning display is evaluated as a function of eye accommodation, eye position and scanning beam width. The display’s defocusing properties and the design trade-off between resolution, depth of focus and maximum image field are analyzed and discussed. The analysis indicates that an elliptically shaped scanning beam is most favorable to provide a quasi-accommodation free viewing. This elliptical beam shape is caused by the asymmetry in the scan pattern.

© 2003 Optical Society of America

OCIS Codes
(120.2820) Instrumentation, measurement, and metrology : Heads-up displays
(330.4460) Vision, color, and visual optics : Ophthalmic optics and devices
(350.5730) Other areas of optics : Resolution

ToC Category:
Research Papers

History
Original Manuscript: September 23, 2003
Revised Manuscript: November 13, 2003
Published: December 1, 2003

Citation
Marc von Waldkirch, Paul Lukowicz, and Gerhard Troster, "Defocusing simulations on a retinal scanning display for quasi accommodation-free viewing," Opt. Express 11, 3220-3233 (2003)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-11-24-3220


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