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US 10,551,245 B2Granted
Simple monolithic optical element for forward-viewing spectrally encoded endoscopy
AssigneesCanon U.S.A., Inc., The General Hospital Corporation
InventorsDukho Do, Dongkyun Kang, Mitsuhiro Ikuta, Guillermo J. Tearney
Life of this patent
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Abstract
Exemplary spectrally encoded probes are provided having forward view capabilities. These probes are configured such that the detection element comprises a plurality of light collecting components, where the distal ends at least partially surround the illumination element and the proximal ends form a linear array that is optically connected to a dispersive component.
Claims23
A probe having a proximal end and a distal end, and configured for spectrally encoded endoscopy (SEE) imaging, comprising:
- an illumination element comprising:
- a light guiding component;
- a first light focusing component;
- and a first dispersive component, arranged in this order along a probe axis from the proximal end to the distal end thereof;
- and
- a detection element comprising:
- a plurality of light collecting components;
- a second dispersive component;
- and a second light focusing component,
- wherein the illumination element is configured to rotate around the probe axis while the plurality of light collecting components remains stationary relative to the rotatable illumination element,
- wherein the distal ends of the plurality of light collecting components are arranged in a circle around the distal end of the illumination element to at least partially surround the first dispersive component, and
- wherein the proximal ends of the plurality of light collecting components form a linear array that is optically connected to the second dispersive component.
9 more elements
An endoscopic imaging system, comprising:
- a light source;
- an illumination element configured to illuminate a sample;
- a detection element configured to collect light from the sample;
- a rotary junction configured to rotate the illumination element relative to the detection element;
- a detector configured to detect light collected by the detection element;
- and
- a processor configured to process data from the detector to form an image,
- wherein the illumination element and the detection element are arranged in a probe having a proximal end and a distal end,
- the illumination element comprising:
- a light guiding component, a first light focusing component, and a first dispersive component;
- arranged along the probe axis in this order from the proximal end to the distal end,
- the detection element comprising:
- a plurality of light collecting components;
- a second dispersive component;
- and a second light focusing component,
- wherein the illumination element is configured to rotate around the probe axis while the plurality of light collecting components remains stationary relative to the rotatable illumination element,
- wherein the proximal ends of the plurality of light collecting components form a linear array that is optically connected to the second dispersive component, and
- wherein the distal ends of the plurality of light collecting components are arranged in a circle around the distal end of the illumination element to at least partially surround the first dispersive component.
15 more elements
Dependencies are inferred from the claim text.