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:
Feb. 13, 2018
Filed:
Jun. 03, 2016
Applicant:
The Charles Stark Draper Laboratory, Inc., Cambridge, MA (US);
Inventors:
Juha-Pekka Laine, Boston, MA (US);
Gregory P. Blasche, Burlington, MA (US);
Murali V. Chaparala, Newton, MA (US);
Robin Dawson, Watertown, MA (US);
Benjamin Lane, Grafton, MA (US);
Stephen P. Smith, Acton, MA (US);
Erik Waldron, Concord, MA (US);
Assignee:
THE CHARLES STARK DRAPER LABORATORY, INC., Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/02 (2006.01); G01C 21/02 (2006.01); G01C 21/24 (2006.01); G01J 1/20 (2006.01); G01S 3/786 (2006.01); G02B 6/028 (2006.01); G02B 6/34 (2006.01); G01S 3/785 (2006.01); G01B 9/06 (2006.01); G02B 6/124 (2006.01); G02B 6/122 (2006.01); G02B 6/26 (2006.01); G02B 6/35 (2006.01); G02B 6/12 (2006.01);
U.S. Cl.
CPC ...
G01S 3/7867 (2013.01); G01B 9/06 (2013.01); G01C 21/025 (2013.01); G01S 3/785 (2013.01); G02B 6/0288 (2013.01); G02B 6/122 (2013.01); G02B 6/124 (2013.01); G02B 6/262 (2013.01); G02B 6/34 (2013.01); G02B 6/3548 (2013.01); G01B 2290/10 (2013.01); G02B 2006/12147 (2013.01);
Abstract
A chip scale star tracker that couples starlight into a lightguide such that the angle of incidence partially determines the mode of propagation of the starlight in the lightguide. A baffle system integrated with the lightguide prevents propagation of light incident from a predetermined range of angles.