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Title: Miniature hybrid optical imaging lens

A miniature lens system that corrects for imaging and chromatic aberrations, 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.
Authors:
 [1] ;  [1]
  1. (Knoxville, TN)
Publication Date:
OSTI Identifier:
871199
Report Number(s):
US 5680252
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
miniature; hybrid; optical; imaging; lens; miniature; lens; corrects; imaging; chromatic; aberrations; lens; fabricated; primarily; commercially-available; components; element; input; lens; housing; aperture; stop; optical; element; refractive; element; diffractive; element; closely; coupled; formed; rear; surface; refractive; element; spaced; closely; diffractive; element; baffle; limit; image; closely; followed; refractive; lens; element; provide; final; correction; image; corrected; aberrations; exits; lens; element; impinge; detector; plane; positioned; desired; detector; array; diffractive; element; fabricated; according; equation; variables; design; wavelength; index; refraction; radius; optical; axis; lens; components; optical axis; optical imaging; rear surface; optical element; detector array; diffractive element; diffractive element; diffractive element; closely coupled; active element; active element; active element; active element; active element; refractive element; refractive element; spaced close; spaced closely; fabricated according; hybrid optical; imaging lens; chromatic aberration; lens element; lens element /359/