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1. (WO1991006025) OPTICAL SYSTEM WHICH ALLOWS COINCIDENT VIEWING, ILLUMINATING AND PHOTOGRAPHING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/006025 International Application No.: PCT/US1990/005830
Publication Date: 02.05.1991 International Filing Date: 11.10.1990
Chapter 2 Demand Filed: 19.04.1991
IPC:
A61B 3/13 (2006.01) ,A61B 19/00 (2006.01) ,G02B 21/18 (2006.01) ,G02B 25/02 (2006.01) ,G02C 7/08 (2006.01) ,G03B 15/14 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
13
Ophthalmic microscopes
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
19
Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
21
Microscopes
18
Arrangements with more than one light-path, e.g. for comparing two specimens
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
25
Eyepieces; Magnifying glasses
02
with means for illuminating object viewed
G PHYSICS
02
OPTICS
C
SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
7
Optical parts
02
Lenses; Lens systems
08
Auxiliary lenses; Arrangements for varying focal length
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
15
Special procedures for taking photographs; Apparatus therefor
14
for taking photographs during medical operations
Applicants:
LUXTEC CORPORATION [US/US]; Technology Park P.O. Box 225 Sturbridge, MA 01566-0225, US
Inventors:
CLARK, Bernard; US
WU, Dau; US
Agent:
GAGNEBIN, Charles, L., III ; Weingarten, Schurgin, Gagnebin & Hayes Ten Post Office Square Boston, MA 02109, US
Priority Data:
419,76111.10.1989US
Title (EN) OPTICAL SYSTEM WHICH ALLOWS COINCIDENT VIEWING, ILLUMINATING AND PHOTOGRAPHING
(FR) SYSTEME OPTIQUE PERMETTANT LA VISUALISATION, L'ECLAIRAGE ET LA PHOTOGRAPHIE COINCIDENTES
Abstract:
(EN) A binocular surgical loupe (12, 14, 84, 86, 130, 132) which enhances the illumination of the viewed field while avoiding flare effects of illuminating light within the loupe optics. The binocular system utilizes circularly polarized illumination and viewing to prevent flare effects and additionally enhances the illumination of the field of view by utilization of the illumination source waste beam that results from the presence of a beam splitter in the illumination path within the loupe. In addition, a camera system (80, 142) is provided which permits remote viewing of the user's field of view. In one embodiment the camera and view paths include separate, identical zoom lenses (98, 112) which are synchronously controlled so that the fields of illumination and view are kept coextensive. In another embodiment for a binocular loupe, the loupe optics for one eye combines illumination and viewing functions while the loupe for the other eye combines camera and viewing functions.
(FR) Loupe binoculaire chirurgicale (12, 14, 84, 86, 130, 132) augmentant l'éclairage du champ visualisé tout en évitant les effets de tache par réflexion de la lumière d'éclairage dans l'optique de la loupe. Le système binoculaire utilise un éclairage et une visualisation polarisés de manière circulaire, afin d'empêcher les effets de taches par réflexion, et augmente davantage l'éclairage du champ visuel par l'utilisation du faisceau résiduel de la source d'éclairage, résultant de la présence d'un dispositif de fractionnement de faisceau situé dans le chemin d'éclairage à l'intérieur de la loupe. De plus, on a prévu un système de caméra (80, 142) permettant la visualisation éloignée du champ visuel de l'utilisateur. Selon un mode réalisation, la caméra et les chemins de visualisation comprennent des lentilles zooms (98, 112) séparées, identiques, lesquelles sont commandées de manière synchrone de sorte que les champs d'éclairage et visuel sont maintenus coextensifs. Selon un autre mode de réalisation d'une loupe binoculaire, l'optique de la loupe destinée à un ÷il combine les fonctions d'éclairage et de visualisation tandis que la loupe destinée à l'autre ÷il combine les fonctions de caméra et de visualisation.
Designated States: AU, CA, JP, KR
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1990066068