Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Blake G. Crowther"'
Autor:
James F. Bell, Justin N. Maki, J. Michael Rodgers, Jaques Laramee, Michael A. Ravine, Blake G. Crowther, John Rogers
Publikováno v:
International Optical Design Conference 2021.
Missions to Mars prior to the year 2020 have indicated that Mars once held liquid water. This may have provided an environment suitable for the existence of microbial life. The primary science mission of Mars 2020 is to explore the past habitability
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26491089fba0da2239eadbd512962683
https://doi.org/10.1117/12.2603621
https://doi.org/10.1117/12.2603621
Autor:
Charley Noecker, Brian Kern, Fang Shi, A. J. Eldorado Riggs, Bala Balasubramanian, John Krist, Hong Tang, Garreth Ruane, Byoung-Joon Seo, Camilo Mejia Prada, David Marx, Eric Cady, Blake G. Crowther
Publikováno v:
Space Telescopes and Instrumentation 2020: Optical, Infrared, and Millimeter Wave.
To create a high contrast field of view with a shaped pupil coronagraph (SPC), the telescope pupil is imaged onto the shaped pupil mask, the shaped pupil mask is designed and fabricated through a design optimization based on a given pupil wavefront,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62253e471ec4d258cb70236ffb224a18
https://doi.org/10.1117/12.2562629
https://doi.org/10.1117/12.2562629
Publikováno v:
Roland V. Shack Memorial Session: A Celebration of One of the Great Teachers of Optical Aberration Theory.
Intrinsic and induced aberrations can be important contributors to the total aberration content of a lens. Theory for induced aberrations has been explored and recently advanced. Macros for calculating and targeting intrinsic and induced aberrations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f263f2040fb596fb57d4e862f1407f2
https://doi.org/10.1117/12.2569041
https://doi.org/10.1117/12.2569041
Autor:
John Rogers, Blake G. Crowther
Publikováno v:
International Optical Design Conference 2017.
The design of tilted, decentered, and non-rotationally symmetric or freeform optical systems has become an important part of optical design. We explore desensitization of traditional and freeform optical designs and compare their effectiveness.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633e71a6f9753d0a6d4aaed0555693ef
https://doi.org/10.1117/12.2293274
https://doi.org/10.1117/12.2293274
Autor:
Blake G. Crowther, John Rogers
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
The design of tilted, decentered, and non-rotationally symmetric or freeform optical systems has become an important part of optical design. We explore desensitization of traditional and freeform optical designs and compare them.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb6af90fe1ee77edecaa5cce01d743b6
https://doi.org/10.1364/iodc.2017.itu2a.5
https://doi.org/10.1364/iodc.2017.itu2a.5
Autor:
Quamrul Huda, Blake G. Crowther, Long Fu, Zheng Yang, Robert Lemon, Michael Wojcik, Bonnie Leung, Allan Chambers, Prasad Valupadas
Publikováno v:
SPIE Proceedings.
Rapid expansion of the oil and gas industry in Alberta, including the oil sands, has challenged the Alberta Government to keep pace in its efforts to monitor and mitigate the environmental impacts of development. The limitations of current monitoring
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b1357aefded5d6510280c6523ff4ad8
https://doi.org/10.1117/12.2176984
https://doi.org/10.1117/12.2176984
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 15:174-183
The use of a shortwave infrared (SWIR) spectroradiometer as a solar radiometer is presented. The radiometer collects 1024 channels of data over the spectral range of 1.1–2.5 μm. The system was tested by applying the Langley method to data collecte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e70bbaf9387015882f4a5b962686c8bf
https://doi.org/10.1175/1520-0426(1998)015<0174:sisfat>2.0.co
https://doi.org/10.1175/1520-0426(1998)015<0174:sisfat>2.0.co
Publikováno v:
Canadian Journal of Remote Sensing. 23:309-317
RESUMEOn utilise des methodes basees sur la reflectance et l'eclairement pour effectuer l'etalonnage radiometrique absolu du capteur Thematic Mapper de Landsat-5 dans la partie reflechie du rayonnement solaire du spectre pour des donnees utilisant le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b38afe902e33f71ec182ee1dfb1f726e
https://doi.org/10.1080/07038992.1997.10855217
https://doi.org/10.1080/07038992.1997.10855217
Autor:
Michael Wojcik, Allan Chambers, Alan Bird, Bonnie Leung, Prasad Valupadas, Long Fu, Robert Lemon, Blake G. Crowther
Publikováno v:
Renewable Energy and the Environment.
A mobile DIAL system capable of measuring carbon dioxide (CO2), methane (CH4), and aerosols has been developed. A system overview of the DIAL instrument and some representative results will be presented.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c71b5fcc5265099dce1493a5bd798b89
https://doi.org/10.1364/e2.2013.em2a.2
https://doi.org/10.1364/e2.2013.em2a.2
Publikováno v:
Remote Sensing of Environment. 49:187-194
Airborne multispectral videography is becoming a popular research and monitoring tool with the advent of charge coupled device (CCD) video technologies. However, most existing systems are not calibrated, resulting in radiometrically inaccurate imager
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af543bfb4136ab4fc46cbe7132817d9c
https://doi.org/10.1016/0034-4257(94)90014-0
https://doi.org/10.1016/0034-4257(94)90014-0