Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2007-01-11
2008-08-05
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
Reexamination Certificate
active
07408715
ABSTRACT:
An image display apparatus having a compact size and appropriately achieving a larger field angle is disclosed while it has two optical systems guiding light from a single image forming device to both eyes. The apparatus has the single image forming device forming an original image, and a first and a second optical system disposed on both sides of a central plane including a central axis of the image forming device. The optical systems guide light from the image forming device to a first and a second eye of an observer, respectively. When light traveling from the image forming device to each pupil of the optical systems is inversely traced from the pupil, each system includes a first surface reflecting the inversely traced light from the pupil in a direction away from the central plane, and a second surface reflecting the inversely traced light from the first surface in a direction away from the central plane.
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European Search Report dated Mar. 29, 2006 for EP Application No. 03257614.2.
Inoguchi Kazutaka
Matsunaga Motomi
Yamazaki Shoichi
Canon Kabushiki Kaisha
Harrington Alicia M
Morgan & Finnegan , LLP
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