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:
Apr. 17, 2001
Filed:
Feb. 17, 1999
Seitoku Tsukamoto, late of Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An observation optical system includes a display unit, and a half mirror for guiding display information in the visible region, displayed on the display unit, to the eye of an observer. In this system, the half mirror is made up of a plurality of metal films and a plurality of dielectric films. The display information on the display unit is reflected by the half mirror to allow the observer to observe the information in a good optical performance condition. At the same time, a scenery image beam is transmitted through the half mirror to allow the observer to observe the scenery image in a good optical performance condition. A method of manufacturing the half mirror is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile