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:
Jun. 28, 1983
Filed:
Jul. 14, 1981
Applicant:
Inventor:
Daniel R Lobb, Chislehurst, GB;
Assignee:
Redifon Simulation Limited, Sussex, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ; G03B / ; G09B / ;
U.S. Cl.
CPC ...
350505 ; 353 12 ; 353 99 ; 434 40 ; 434 44 ;
Abstract
A roll and pitch motion optical system, particularly for a ground-based flight simulator visual display using a raster-scanned laser optical projector and a concave part-spherical display screen and requiring a wide-angle display. The optical system uses an input concave paraboloidal mirror and an output convex paraboloidal mirror of complementary shape. The intermediate optics comprise a collimator to constrict the display beam envelope, roll and pitch prisms positioned in the constricted area and close to the output mirror and a concave spherical mirror to reflect beams from the pitch prism back onto the output paraboloidal mirror.