(19)
(11) EP 0 494 266 A1

(12)

(43) Date of publication:
15.07.1992 Bulletin 1992/29

(21) Application number: 90915999.0

(22) Date of filing: 01.10.1990
(51) International Patent Classification (IPC): 
G01N 21/ 72( . )
(86) International application number:
PCT/US1990/005591
(87) International publication number:
WO 1991/005241 (18.04.1991 Gazette 1991/09)
(84) Designated Contracting States:
AT BE CH DE DK ES FR GB IT LI LU NL SE

(30) Priority: 29.09.1989 US 19890415141

(71) Applicant: RESEARCH CORPORATION TECHNOLOGIES, INC.
Tucson Arizona 85710-2815 (US)

(72) Inventors:
  • BUSCH, Kenneth, W.
    Waco, TX 76710 (US)
  • HUDSON, Keith, M.
    Little Rock, AR 72211 (US)
  • BUSCH, Marianna, A.
    Waco, TX 76710 (US)
  • KUBALA, Sidney, Wayne, Jr.
    Hewitt, TX 76643 (US)
  • TILOTTA, David, Charles
    Waco, TX 76706 (US)
  • LAM, Christopher, Kwok, Yin
    Waco, TX 76706 (US)
  • SRINIVASAN, Ravishankar
    Waco, TX 76706 (US)

(74) Representative: Lehn, Werner, Dipl.-Ing., et al 
Hoffmann, Eitle & Partner, Patentanwälte, Postfach 81 04 20
D-81904 München
D-81904 München (DE)

   


(54) INFRARED EMISSION DETECTION