Endoscope for imaging infrared emissions within the range of 2 t

Details Endoscope for imaging infrared emissions within the range of 2 t Endoscope for imaging infrared emissions within the range of 2 t

1996-04-12

1998-11-10

Leubecker, John P.

Surgery

Endoscope

With camera or solid state imager

600473, 359356, 250353, A61B 104

Patent

active

058335960

ABSTRACT:
Endodiagnostic apparatus and methods by which infrared emissions of 2 micrometers and above may be visualized in the form of encoded images to permit differential analysis. The endoscopic apparatus comprises a refractive objective lens for forming a real image of interior structure of interest, a relay system consisting solely of refractive elements for transferring the real image to an intermediate plane conjugate to the objective image plane, a refracting coupling lens for forming a final image of the intermediate image in a detector plane in which an IR detector sensitive in the range of 2 micrometers and greater may be placed near the proximal end of the apparatus, and a warm stop for ameliorating the effects of stray IR radiation in the system.

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