Development and application of spherically curved charge-coupled device imagers

J. A. Gregory, A. M. Smith, E. C. Pearce, R. L. Lambour, R. Y. Shah, H. R. Clark, K. Warner, R. M. Osgood, D. F. Woods, A. E. DeCew, S. E. Forman, L. Mendenhall, C. M. DeFranzo, V. S. Dolat, A. H. Loomis

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Operation of a CCD imager on a curved focal surface offers advantages to flat focal planes, especially for lightweight, relatively simple optical systems. The first advantage is that the modulation transfer function can approach diffraction-limited performance for a spherical focal surface employed in large field-of-view or large-format imagers. The second advantage is that a curved focal surface maintains more uniform illumination as a function of radius from the field center. Examples of applications of curved imagers, described here, include a small compact imager and the large curved array used in the Space Surveillance Telescope. The operational characteristics and mechanical limits of an imager deformed to a 15 mm radius are also described.

Original languageEnglish (US)
Pages (from-to)3072-3082
Number of pages11
JournalApplied optics
Issue number10
StatePublished - Apr 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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