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. 02, 2019
Filed:
Jun. 27, 2016
Applicant:
Ziel Optics, Inc., Ann Arbor, MI (US);
Inventor:
Fred Collin, Ann Arbor, MI (US);
Assignee:
Ziel Optics, Inc., Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H 1/22 (2006.01); F41G 1/30 (2006.01); G02B 5/32 (2006.01); G02B 23/10 (2006.01); G02B 27/42 (2006.01); G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
F41G 1/30 (2013.01); G02B 5/32 (2013.01); G02B 23/10 (2013.01); G02B 27/1086 (2013.01); G02B 27/425 (2013.01); G03H 1/22 (2013.01); G03H 2001/2231 (2013.01); G03H 2001/2284 (2013.01);
Abstract
A holographic gun sight has a housing with a viewing end and an opposing target end, a viewing path being defined from the viewing end to the target end. A light source projects a light beam along a path to illuminate a reflection-type holographic optical element (HOE). The HOE reconstructs an object beam with an image of a reticle. The absolute difference between the incidence angle of the light beam on the HOE and the object beam angle is greater than zero and less than or equal to 30 degrees.