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. 06, 1990
Filed:
Apr. 24, 1989
Joseph T Fournier, Jr, Glastonbury, CT (US);
Stephen J Smith, Simsbury, CT (US);
Harry R McKinley, Southampton, MA (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
Helmut mounted display apparatus configured for simulator use includes a pair of visual image sources and a pair of optics arrangements, including relay optic and eyepiece portions thereof, that optically present the image source images into the wearer's forward visual field, a first eyepiece type optimized for daytime luminance conditions, a second type optimized for nighttime luminance conditions, a single eyepiece being releasably engageable to and rotatable about the corresponding relay optic portion, wheeby said eyepiece rotation allows a varying binocular field of view to be displayed to the wearer.