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1. (WO2010074098) OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND IMAGING METHOD FOR OPTICAL TOMOGRAPHIC IMAGE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/074098 International Application No.: PCT/JP2009/071355
Publication Date: 01.07.2010 International Filing Date: 16.12.2009
IPC:
G01N 21/17 (2006.01) ,A61B 3/10 (2006.01) ,A61B 3/12 (2006.01) ,G01B 11/24 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
12
for looking at the eye fundus, e.g. ophthalmoscopes
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11
Measuring arrangements characterised by the use of optical means
24
for measuring contours or curvatures
Applicants:
CANON KABUSHIKI KAISHA [JP/JP]; 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 1468501, JP (AllExceptUS)
HIROSE, Futoshi [JP/JP]; JP (UsOnly)
Inventors:
HIROSE, Futoshi; JP
Agent:
OKABE, Masao; No. 602, Fuji Bldg., 2-3, Marunouchi 3-chome, Chiyoda-ku, Tokyo 1000005, JP
Priority Data:
2008-33180526.12.2008JP
Title (EN) OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND IMAGING METHOD FOR OPTICAL TOMOGRAPHIC IMAGE
(FR) APPAREIL D'IMAGERIE TOMOGRAPHIQUE OPTIQUE ET PROCÉDÉ D'IMAGERIE PERMETTANT D'OBTENIR UNE IMAGE TOMOGRAPHIQUE OPTIQUE
Abstract:
(EN) Provided are an optical tomographic imaging apparatus and an imaging method for an optical tomographic image, in which high measurement sensitivity and high lateral resolution of a specific portion of an object may be obtained with a simple structure. The optical tomographic imaging apparatus of a Fourier-domain method includes: an optical path length adjustment portion for adjusting an optical path length of the reference beam; a position adjustment portion for adjusting a position of a focusing device for focusing the measuring beam onto the object; and a drive control portion for controlling drive of the optical path length adjustment portion and the position adjustment portion. The drive control portion is controlled based on information from a layer constituting a cross section from cross section information that is obtained in advance for a portion to be imaged of the object.
(FR) La présente invention concerne un appareil d'imagerie tomographique optique et un procédé d'imagerie permettant d'obtenir une image tomographique optique. Cet appareil et ce procédé permettent de parvenir, avec une structure simple, à une grande sensibilité de mesure et à une haute résolution latérale d'une partie spécifique d'un objet. L'appareil d'imagerie tomographique optique selon un procédé dans le domaine de Fourier comprend : une partie d'ajustement de longueur de trajet optique permettant d'ajuster une longueur de trajet optique du faisceau de référence ; une partie d'ajustement de position permettant d'ajuster une position d'un dispositif de mise au point conçu pour mettre le faisceau de mesure au point sur l'objet ; et une partie de commande de pilotage conçue pour commander le pilotage de la partie d'ajustement de longueur de trajet optique et de la partie d'ajustement de position. La partie de commande de pilotage est commandée sur la base d'informations provenant d'une couche constituant une section transversale parmi des informations de section transversale qui sont obtenues à l'avance pour une partie à imager de l'objet.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US20110234975