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Applied Optics

Applied Optics


  • Vol. 38, Iss. 19 — Jul. 1, 1999
  • pp: 4198–4212

Eyeglass. 1. Very large aperture diffractive telescopes

Roderick A. Hyde  »View Author Affiliations

Applied Optics, Vol. 38, Issue 19, pp. 4198-4212 (1999)

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The Eyeglass is a very large aperture (25–100-m) space telescope consisting of two distinct spacecraft, separated in space by several kilometers. A diffractive lens provides the telescope’s large aperture, and a separate, much smaller, space telescope serves as its mobile eyepiece. Use of a transmissive diffractive lens solves two basic problems associated with very large aperture space telescopes; it is inherently launchable (lightweight, packagable, and deployable) it and virtually eliminates the traditional, very tight surface shape tolerances faced by reflecting apertures. The potential drawback to use of a diffractive primary (very narrow spectral bandwidth) is eliminated by corrective optics in the telescope’s eyepiece; the Eyeglass can provide diffraction-limited imaging with either single-band (Δλ/λ ∼ 0.1), multiband, or continuous spectral coverage.

© 1999 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics

Original Manuscript: September 16, 1998
Revised Manuscript: February 18, 1999
Published: July 1, 1999

Roderick A. Hyde, "Eyeglass. 1. Very large aperture diffractive telescopes," Appl. Opt. 38, 4198-4212 (1999)

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