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Title: Large aperture diffractive space telescope

Abstract

A large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary objective lens functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass "aiming" at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The objective lens includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the objective lens, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets which may be either earth bound or celestial.

Inventors:
 [1]
  1. (Livermore, CA)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
873677
Patent Number(s):
US 6219185
Assignee:
United States of America as represented by United States Department (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
aperture; diffractive; space; telescope; 10; meters; including; separate; spacecraft-an; optical; primary; objective; lens; functioning; magnifying; glass; secondary; eyepiece; spacecraft; spaced; kilometers; apart; directly; aiming; intended; target; relative; orientation; determining; axis; hence; targets; observed; large-aperture; very-thin-membrane; fresnel; intercepts; incoming; light; focuses; towards; meter-scale; designed; move; focal; surface; gathering; converting; quality; images; positions; craft; controlled; maintain; focus; desired; earth; bound; celestial; objective lens; optical axis; incoming light; diffractive lens; relative orientation; fresnel lens; space telescope; telescope including; /359/244/

Citation Formats

Hyde, Roderick A. Large aperture diffractive space telescope. United States: N. p., 2001. Web.
Hyde, Roderick A. Large aperture diffractive space telescope. United States.
Hyde, Roderick A. Mon . "Large aperture diffractive space telescope". United States. https://www.osti.gov/servlets/purl/873677.
@article{osti_873677,
title = {Large aperture diffractive space telescope},
author = {Hyde, Roderick A.},
abstractNote = {A large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary objective lens functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass "aiming" at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The objective lens includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the objective lens, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets which may be either earth bound or celestial.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}

Patent:

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