OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 41, Iss. 3 — Mar. 1, 1951
  • pp: 169–169

An ƒ:1.0 Camera for Astronomical Spectroscopy

ABE OFFNER and WILLIAM B. DECKER  »View Author Affiliations


JOSA, Vol. 41, Issue 3, pp. 169-169 (1951)
http://dx.doi.org/10.1364/JOSA.41.000169


View Full Text Article

Acrobat PDF (745 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

An ƒ:1.0 spectrograph camera with a nearly flat field was designed by splitting the symmetrical ball lens of Sutton and adding correcting components. The resulting 7-element objective has longitudinal spherical aberration not exceeding 0.001 mm between 7000A and 9000A.

The camera is constructed so that all adjustments of tilt and focus are made from behind the plate-holder. The plate emulsion is kept within 0.025 mm of the focal plane even when the camera is operated upside down.

In astronomical use the camera photographs several hundred angstroms of spectrum at one time on flat plates, with good definition through the range 4000A to 9000A. As compared to modified Schmidt cameras, it has the disadvantage of a field limited to 7 degrees by vignetting, but is comparable in light efficiency, and has the greater convenience of allowing the use of glass plates large enough to carry multiple exposures.

Citation
ABE OFFNER and WILLIAM B. DECKER, "An ƒ:1.0 Camera for Astronomical Spectroscopy," J. Opt. Soc. Am. 41, 169-169 (1951)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-41-3-169


Sort:  Journal  |  Reset

References

References are not available for this paper.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited