File:COS Optical Path.jpg
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Summary
| Description |
English: Cosmic Origins Spectrograph optical path: The FUV and NUV channels initially share a common path. The first optic is either a concave, holographically ruled diffraction grating which directs light to the FUV detector (red) or a concave mirror directing light to the NUV gratings and the NUV detector (purple). The green ray packets represent the FUV optical paths, and blue ray packets represent the NUV optical paths. A wavelength reference and flat field delivery system is shown at top left (orange ray packets) and can provide simultaneous wavelength reference spectra during science observations. |
| Date | CAD image generated pre 2004 |
| Source | http://asd.gsfc.nasa.gov/archive/sm4/multimedia/gallery1_cos.html https://web.archive.org/web/20090321204411/http://cos.gsfc.nasa.gov/Images/instrument/optical_path.jpg |
| Author | NASA |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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Original upload log
Transferred from en.wikipedia to Commons using For the Common Good.
The original description page was here. All following user names refer to en.wikipedia.
| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 17:18, 3 March 2009 | 660 × 278 (70,244 bytes) | w:en:CasaDaddyO (talk | contribs) | ({{Information |Description=Cosmic Origins Spectrograph optical path |Source=NASA |Date= CAD image generated pre 2004 |Author=NASA |Permission= |other_versions= }}) |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:26, 28 August 2012 | | 660 × 278 (69 KB) | Bulwersator | Transferred from en.wikipedia: see original upload log above |
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