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:
Dec. 08, 2015

Filed:

Jan. 11, 2013
Applicant:

Smart Technologies Ulc, Calgary, CA;

Inventors:

Robbie Rattray, Calgary, CA;

Grant McGibney, Calgary, CA;

Rob Barton, Calgary, CA;

Cameron Taylor, Calgary, CA;

David Holmgren, Calgary, CA;

Peter Shivkumar, Calgary, CA;

Nicole Martin, Calgary, CA;

Dmitry Elman, Calgary, CA;

Alexis Guillemin, Calgary, CA;

Patrick Marcil, Calgary, CA;

Yun Zhang, Calgary, CA;

Assignee:

SMART Technologies ULC, Calgary, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); G06K 11/06 (2006.01); G06F 3/042 (2006.01); G03B 21/134 (2006.01); H04N 5/351 (2011.01); G06F 3/0354 (2013.01); H04N 9/31 (2006.01); F21V 5/04 (2006.01); F21V 21/14 (2006.01); G06F 3/038 (2013.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0425 (2013.01); F21V 5/04 (2013.01); F21V 21/14 (2013.01); G03B 21/134 (2013.01); G06F 3/0354 (2013.01); G06F 3/0386 (2013.01); G06F 3/03542 (2013.01); G06F 3/042 (2013.01); G06F 3/0416 (2013.01); G06F 3/0418 (2013.01); H04N 5/351 (2013.01); H04N 9/3179 (2013.01); H04N 9/3194 (2013.01);
Abstract

A method for adjusting the position of a light curtain emitted by an illumination assembly over a surface, comprises determining a position of the light curtain; calculating a difference between the determined position of the light curtain and a desired position of the light curtain; and adjusting the position of the illumination assembly based on the calculated difference.


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