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.

Date of Patent:
Jan. 05, 2016

Filed:

Mar. 30, 2012
Applicants:

John R. Staley, Iii, Dallas, TX (US);

James M. Florence, Dallas, TX (US);

Inventors:

John R. Staley, III, Dallas, TX (US);

James M. Florence, Dallas, TX (US);

Assignee:

RAYTHEON COMPANY, Waltham, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/19 (2006.01); G02B 23/14 (2006.01); G02F 1/1335 (2006.01); F41G 1/38 (2006.01); G02B 25/00 (2006.01); G03B 13/02 (2006.01); G03B 11/04 (2006.01);
U.S. Cl.
CPC ...
G02B 23/14 (2013.01); F41G 1/383 (2013.01); G02B 25/00 (2013.01); G02F 1/133553 (2013.01); G02F 1/19 (2013.01); G03B 11/046 (2013.01); G03B 13/02 (2013.01);
Abstract

An electronic eyepiece includes a digital microdisplay and an electrically switchable light blocking mechanism configured to selectively transmit or block light transmitted along an optical path toward the digital microdisplay to protect the microdisplay from the risk of light focus damage. Further, a method of protecting a digital microdisplay of an electronic eyepiece from light focus damage includes determining a risk of light focus damage, and selectively opening or closing an optical path to the digital microdisplay responsive to the risk of light focus damage exceeding a predetermined risk threshold.


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