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Optical Engineering

Contrast budget of head-mounted displays
Author(s): Gerard C. de Wit
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Paper Abstract

This paper introduces the concept of a contrast budget for a head-mounted display, i.e., a list of contrast values of separate contrast-degrading phenomena in the system. The basic phenomena are dynamic range, diffraction, scattered light, and ghost images. By calculating a contrast budget it becomes clear whether or not the display-system contrast will meet specified criteria and which factors contribute the most to the degradation of contrast in the system. An example of a contrast budget is given for the NomadTM head-mounted display system. In this system dynamic range, scanner scattering, and beamsplitter stray light are the dominant contributors, but the overall contrast is comfortably above specification.

Paper Details

Date Published: 1 October 2002
PDF: 8 pages
Opt. Eng. 41(10) doi: 10.1117/1.1503071
Published in: Optical Engineering Volume 41, Issue 10
Show Author Affiliations
Gerard C. de Wit, Delft Univ. of Technology (Netherlands)

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