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Browse Prior Art Database

Head-Mounted Display

IP.com Disclosure Number: IPCOM000045932D
Original Publication Date: 1983-May-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 2 page(s) / 30K

Publishing Venue

IBM

Related People

Young, JER: AUTHOR

Abstract

An image produced on a miniature display is transmitted from a remote terminal over a thin flexible coherent optical fiber bundle to a small eyepiece worn by an operator. The optics of the eyepiece intercept and project the transmitted image into part of the operator's field of view. Although the image is fixed with respect to the viewer's head, normal eye movement enables the operator to look beyond the displayed image.

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Head-Mounted Display

An image produced on a miniature display is transmitted from a remote terminal over a thin flexible coherent optical fiber bundle to a small eyepiece worn by an operator. The optics of the eyepiece intercept and project the transmitted image into part of the operator's field of view. Although the image is fixed with respect to the viewer's head, normal eye movement enables the operator to look beyond the displayed image.

The small remote image may be produced by any conventional means, for example, by a miniature CRT device or by an integrated circuit display chip. A long flexible section of a coherent bundle of fine clad optical fibers transmits the displayed image, preferably picture element for picture element, to an eyepiece which magnifies and transforms the light from the ends of the fibre bundle into a virtual image of the displayed image which appears flat at a comfortable viewing distance and inset into the field of view of one eye of the operator.

The eyepiece is moulded or machined from plastic material with some internal surfaces made into mirrors in order to provide a solid, folded, catadioptric system. The eyepiece shown in the figure is constructed in two parts l and 2, cemented together at an accurately produced 45% interface providing an internal semi-reflecting surface 3. The ends of the fiber bundle 4 are cemented in a registering hole in one end of the larger part 1. Internally reflecting plane folding mirrors 5 and 6 tran...