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:
Mar. 03, 1987
Filed:
Jan. 28, 1986
Applicant:
Inventors:
Robert K Kirschner, Redmond, WA (US);
Hans R Muller, Redmond, WA (US);
Assignee:
Sundstrand Data Control, Inc., Redmond, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; G02B / ; G09G / ;
U.S. Cl.
CPC ...
358109 ; 358103 ; 358139 ; 358250 ; 340705 ; 340980 ; 350172 ; 350174 ;
Abstract
An independent test sight is described for a pilot's head-up display (HUD). In one embodiment, the independent test site comprises a collimator assembly and an aligned periscope assembly. The collimator assembly comprises a source of light, a reticle, and a lens for projecting the image of the reticle. The periscope assembly comprises a rhomboid prism housed within the chassis of the HUD in such a manner that it can be pivoted from a stowed position to an erect position where it projects a reticle pattern in the field of view of the HUD combiner.