Invention Grant
- Patent Title: Endoscope device and method with illumination fiber bundles having multiple numerical apertures
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Application No.: US16678376Application Date: 2019-11-08
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Publication No.: US11213192B2Publication Date: 2022-01-04
- Inventor: Dashiell Birnkrant , Robert Tremblay
- Applicant: KARL STORZ Endovision, Inc.
- Applicant Address: US MA Charlton
- Assignee: KARL STORZ Endovision, Inc.
- Current Assignee: KARL STORZ Endovision, Inc.
- Current Assignee Address: US MA Charlton
- Agent Michael J. Loi; David Noel Villalpando
- Main IPC: A61B1/06
- IPC: A61B1/06 ; A61B1/05 ; A61B1/00 ; A61B1/267

Abstract:
An optical scope includes a body and an elongated shaft. The shaft distal end holds an optical assembly including an imaging lens with a field of view of at least 90 degrees. An LED is coupled to the body and has an output numerical aperture (NA) providing a critical angle larger than the field of view. A first pair of fiber bundles have proximal ends receiving light from the LED with distal ends presented at the shaft distal face, and an NA providing a critical angle less than the field of view. A second pair of fiber bundles also receive light from the LED with distal ends having at the shaft distal face, and have an NA providing a critical angle at least as large as the field of view. The bundles are positioned around imaging lens such that they create a light having a desired intensity profile and properties.
Public/Granted literature
- US20210137374A1 Endoscope Device And Method With Illumination Fiber Bundles Having Multiple Numerical Apertures Public/Granted day:2021-05-13
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