Processing

Please wait...

Settings

Settings

Goto Application

1. US20150369586 - Imaging apparatus

Office United States of America
Application Number 14742372
Application Date 17.06.2015
Publication Number 20150369586
Publication Date 24.12.2015
Grant Number 09841268
Grant Date 12.12.2017
Publication Kind B2
IPC
G01B 9/02
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers
A61B 3/10
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A61B 5/00
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Measuring for diagnostic purposes; Identification of persons
CPC
G01B 9/02011
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02001characterised by manipulating or generating specific radiation properties
02011using temporal polarization variation
A61B 3/102
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
102for optical coherence tomography [OCT]
A61B 5/0066
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
5Detecting, measuring or recording for diagnostic purposes
0059using light, e.g. diagnosis by transillumination, diascopy, fluorescence
0062Arrangements for scanning
0066Optical coherence imaging
G01B 9/02058
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02055characterised by error reduction techniques
02056Passive error reduction, i.e. not varying during measurement, e.g. by constructional details of optics
02058by particular optical compensation or alignment elements, e.g. dispersion compensation
G01B 9/02091
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9Instruments as specified in the subgroups and characterised by the use of optical measuring means
02Interferometers ; for determining dimensional properties of, or relations between, measurement objects
02091Tomographic low coherence interferometers, e.g. optical coherence tomography
G01B 2290/70
GPHYSICS
01MEASURING; TESTING
BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
2290Aspects of interferometers not specifically covered by any group under G01B9/02
70Using polarization in the interferometer
Applicants CANON KABUSHIKI KAISHA
Inventors Makoto Fukuhara
Nobuhiro Tomatsu
Toshiharu Sumiya
Makoto Sato
Agents Canon USA Inc., IP Division
Priority Data 2014125733 18.06.2014 JP
Title
(EN) Imaging apparatus
Abstract
(EN)

An imaging apparatus configured to image an object to be examined is provided. The apparatus includes a splitting unit configured to split light obtained by combining the returned light and the reference light into a plurality of lights having different polarization components; and a detecting unit configured to detect the plurality of lights. The apparatus further includes a correcting unit configured to correct a phase difference between different polarization components generated by an optical member provided on an optical path of the measurement light or an optical path of the reference light.

Other related publications