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Title: Miniature hybrid optical imaging lens

A miniature lens system that corrects for imaging and chromatic aberrations is disclosed, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components. 2 figs.
Authors:
;
Publication Date:
OSTI Identifier:
541749
Report Number(s):
US 5,680,252/A/
PAN: US patent application 8-409,390
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 21 Oct 1997
Research Org:
Lockheed Martin Energy Syst Inc
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; LENSES; IMAGES; CHROMATIC ABERRATIONS; OPTICAL SYSTEMS; DESIGN; RADIATION DETECTORS