Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Woon-Yin Wong"'
Autor:
Woon-Yin Wong, S. von Hoerner
Publikováno v:
1979 Antennas and Propagation Society International Symposium.
Most antennas have strong gravitational astigmatism and vary as a function of the antenna position. We suggested that this kind of surface error could be corrected away if a subreflector is mechanically deformed in a proper way [l]. Analyses by ray t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09bc5b14896dcbf7bd2a4295508735a6
https://doi.org/10.1109/aps.1979.1148042
https://doi.org/10.1109/aps.1979.1148042
Publikováno v:
SPIE Proceedings.
The internal support structure of the Gemini Near IR Spectrograph (GNIRS) comprises a series of substructures which are interconnected to support the optical components and their mechanisms.A very stable support structure is required in the GNIRS to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df609cfb856b1dbbef021b110475f2f6
https://doi.org/10.1117/12.317237
https://doi.org/10.1117/12.317237
Publikováno v:
SPIE Proceedings.
The grating turret is one of many parts of the Gemini near infrared spectrograph (GNIRS)1'2 being designed for the Gemini8-rn telescope project. It provides four gratings and one flat mirror mount, with each one able to tilt in discrete 1/4° stepsov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7515307c6739ec0388e69aceae65eae
https://doi.org/10.1117/12.317228
https://doi.org/10.1117/12.317228
Autor:
Daniel Vukobratovich, Woon-Yin Wong, Cheng Li, Nicolas A. Roddier, G. Plum, Il-Kwon Moon, Randy W. Cuberly, Ken Don, Earl T. Pearson, Allen Gerzoff, Ming Liang, D. Harris, John R. Andrew, Richard J. Wolff, J. Hicks, Myung K. Cho, Julie B. Heynssens, Jonathan H. Elias, Charles F. W. Harmer, A. Kovacs, Janet E. Tvedt
Publikováno v:
SPIE Proceedings.
The design of a near-IR spectrometer for the Gemini 8m telescopes is described. This instrument, GNIRS, provides coverage from 0.9 to 5.5 micrometers at several spectral resolutions and two pixel scales. Capabilities include an imaging mode intended
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310f3b89ba1adde80b6f87fc9a81790f
https://doi.org/10.1117/12.317281
https://doi.org/10.1117/12.317281
Publikováno v:
Instrumentation in Astronomy VIII.
The next generation of CCD imagers will undoubtedly be mosaics, in order to overcome (1) the low yield when fabricating large devices, (2) the limited number of readout channels that can be put easily on a single CCD, and (3) the physical limitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6fda4bb6904790e2b40262b1a175ff6
https://doi.org/10.1117/12.176690
https://doi.org/10.1117/12.176690
Autor:
Gary A. Poczulp, Dean A. Ketelsen, David S. Anderson, Hubert M. Martin, S. C. West, Woon-Yin Wong, James H. Burge, John H. Richardson
Publikováno v:
SPIE Proceedings.
D. Anderson, J. Burge, D. Ketelsen, B. Martin, S. WestSteward Observatory Mirror LaboratoryUniversity of ArizonaTucson, Arizona 8572].G. Poczulp, J. Richardson, W. WongNational Optical Astronomy ObservatoriesP.O. Box 26732, Tucson, Arizona 85726—67
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::366bd5c4e2917cc0895de1335e942c60
https://doi.org/10.1117/12.167968
https://doi.org/10.1117/12.167968
Autor:
Woon-Yin Wong, Siriluk Limmongkol, Jack Baldwin, Walter A. Siegmund, Fred F. Forbes, Charles H. Comfort
Publikováno v:
SPIE Proceedings.
Dome-induced thermal disturbances that degrade seeing can originate when temperature differences exist between the interior and exterior of a telescope enclosure. It is important to design enclosures which minimize the effect. One design aid is to mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::319800dfc1a6473890c4aae5a19dee81
https://doi.org/10.1117/12.48262
https://doi.org/10.1117/12.48262
Publikováno v:
Advanced Technology Optical Telescopes IV.
The preservation of image quality is one of the most important design criteria for a telescope enclosure. Image quality is adversely affected by the presence of fluctuations of air temperature in the light path. In an ideal telescope enclosure, the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dca3a3e003265e97a5026d537858caf4
https://doi.org/10.1117/12.19227
https://doi.org/10.1117/12.19227
Autor:
Woon-Yin Wong, von Hoerner, S.
Publikováno v:
1979 Antennas & Propagation Society International Symposium; 1979, Issue 17, p706-709, 4p
Autor:
Von Hoerner, S., Woon-Yin Wong
Publikováno v:
IEEE Transactions on Antennas & Propagation; 1979, Vol. 27 Issue 5, p720-723, 4p