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12. (US20180177404) Gradient Index Lens Assembly-Based Imaging Apparatus, Systems and Methods

Application Number: 15736575 Application Date: 23.06.2016
Publication Number: 20180177404 Publication Date: 28.06.2018
Publication Kind : A1
Prior PCT appl.: Application Number:PCTUS2016039019 ; Publication Number: Click to see the data
IPC:
A61B 5/00
G02B 6/42
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
5
Measuring for diagnostic purposes; Identification of persons
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24
Coupling light guides
42
Coupling light guides with opto-electronic elements
CPC:
A61B 3/102
A61B 5/0066
A61B 5/0084
G02B 6/4206
G02B 6/4212
Applicants: LightLab Imaging, Inc.
Inventors: Yu Liu
Priority Data:
Title: (EN) Gradient Index Lens Assembly-Based Imaging Apparatus, Systems and Methods
Abstract: front page image
(EN)

In part, the disclosure relates to a lens assembly. The lens assembly can be used to direct light for sensing and imaging. In one embodiment, the lens assembly is a component of an intravascular data collection probe such as an optical coherence tomography probe. The lens assembly can include an optical fiber having a first diameter and a gradient index lens that includes a rod having a length L. The rod can include a substantial planar end and a polished end. The rod can include a longitudinal axis and a second diameter. The second diameter is greater than the first diameter in one embodiment. The substantially planar end is optically coupled to an endface of the optical fiber. The refractive index changes along the length L of the rod.