公开(公告)号：EP3013691B1

公开(公告)日：2018-03-07

申请号：EP14817171.3

申请日：2014-05-16

申请人： The Charles Stark Draper Laboratory, Inc.

发明人： LAINE, Juha-Pekka ,  BLASCHE, Gregory, P. ,  CHAPARALA, Murali, V. ,  DAWSON, Robin ,  LANE, Benjamin ,  SMITH, Stephen, P. ,  WALDRON, Erik

IPC分类号： B64G1/36 ,  G01S3/786 ,  G01C21/02

CPC分类号： G01S3/7867 ,  G01B9/06 ,  G01B2290/10 ,  G01C21/025 ,  G01S3/785 ,  G02B6/0288 ,  G02B6/122 ,  G02B6/124 ,  G02B6/262 ,  G02B6/34 ,  G02B6/3548 ,  G02B2006/12147

摘要： A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.

公开(公告)号：EP3013691A1

公开(公告)日：2016-05-04

申请号：EP14817171.3

申请日：2014-05-16

申请人： The Charles Stark Draper Laboratory, Inc.

发明人： LAINE, Juha-Pekka ,  BLASCHE, Gregory, P. ,  CHAPARALA, Murali, V. ,  DAWSON, Robin ,  LANE, Benjamin ,  SMITH, Stephen, P. ,  WALDRON, Erik

IPC分类号： B64G1/36

CPC分类号： G01S3/7867 ,  G01B9/06 ,  G01B2290/10 ,  G01C21/025 ,  G01S3/785 ,  G02B6/0288 ,  G02B6/122 ,  G02B6/124 ,  G02B6/262 ,  G02B6/34 ,  G02B6/3548 ,  G02B2006/12147

摘要： A chip scale star tracker that captures plane-wave starlight propagating in free space with a wafer-thin angle-sensitive broadband filter-aperture, and directs the light into a waveguide structure for readout. Angular information about the star source is determined from characteristics of the starlight propagating in the waveguide. Certain examples include internal propagation-constant-based baffling to elimination stray light from extreme angles.

公开(公告)号：EP3345839A1

公开(公告)日：2018-07-11

申请号：EP18152519.7

申请日：2014-05-16

申请人： The Charles Stark Draper Laboratory, Inc.

发明人： LAINE, Juha-Pekka ,  BLASCHE, Gregory, P. ,  CHAPARALA, Murali, V. ,  DAWSON, Robin ,  LANE, Benjamin ,  SMITH, Stephen, P. ,  WALDRON, Erik

IPC分类号： B64G1/36 ,  G01S3/786 ,  G01C21/02

CPC分类号： G01S3/7867 ,  G01B9/06 ,  G01B2290/10 ,  G01C21/025 ,  G01S3/785 ,  G02B6/0288 ,  G02B6/122 ,  G02B6/124 ,  G02B6/262 ,  G02B6/34 ,  G02B6/3548 ,  G02B2006/12147

摘要： A star tracker (500) comprising: a lightguide; a coupling system disposed on a surface of the lightguide and configured to couple starlight (130, 135) into the lightguide such that a mode of propagation of the starlight (130, 135) in the lightguide is at least partially determined by an angle of incidence of the starlight (130, 135) on the coupling system; a plurality of optical apertures (520) connected to the lightguide; and an interferometer (560) selectively coupled to a pair of the plurality of optical apertures (520) and configured to determine a phase difference between the starlight (130, 135) propagated via the lightguide to each of the pair of the plurality of optical apertures (520).