The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
May. 04, 2001
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image display apparatus includes a light source for emitting illumination light, an image display element for displaying an image by reflecting incident light, an illumination optical element which reflects the illumination light from the light source toward the image display element and through which image light from the image display element is transmitted, an observation optical element for guiding the image light transmitted through the illumination optical element to an eye of an observer, and a light-shielding member for blocking at least one of unnecessary light which is contained in the illumination light from the light source and travels outside an effective image display area of the image display element and unnecessary light which is contained in the image light from the image display element and travels outside an effective observation space.