Title

Device and Method for Image Acquisition Through Multi-Mode Fiber

Abstract

An endoscope for image acquisition via illumination of an objects image, such as but not limited to a bar code, by a set of spatially resolved patterns, with subsequent reconstruction of the image without detailed spatial resolution. A device to stabilize the prescribed set of illuminating patterns against bending of the fiber is also disclosed, which consists of the auxiliary pre-bent part of the fiber and the work part of the fiber, subject to the inevitable bends with or without additional compensation. The distorting influence of the bending of the work part is compensated by the controllable loosening of the pre-bent part of the fiber. Encoding of the pixels of the image or of the illumination patterns encodes the intensity of each pixel to the excitation intensity of the corresponding mode. Such encoding is stable to the bending of the guide. Special transverse profiles of the properties of the waveguide include a rectangular, triangular and hexagonal cross-sectional shaped waveg

Document Type

Patent

Patent Number

5,956,447

Application Serial Number

08/851,423

Issue Date

9-21-1999

Current Assignee

UCFRF

Assignee at Issuance

UCFRF

College

College of Optics and Photonics

Department

CREOL

Allowance Date

January 1999

Filing Date

May 1997

Assignee at Filing

UCFRF

Filing Type

Nonprovisional Application Record

Donated

no

Link to Patent
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