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1. (WO1998049522) METHOD AND APPARATUS FOR IMAGING AN OBJECT BY DIFFRACTIVE AUTOFOCUS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049522 International Application No.: PCT/US1998/007884
Publication Date: 05.11.1998 International Filing Date: 17.04.1998
Chapter 2 Demand Filed: 24.11.1998
IPC:
G01B 11/02 (2006.01) ,G02B 7/28 (2006.01) ,G02B 27/44 (2006.01)
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
02
for measuring length, width, or thickness
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
28
Systems for automatic generation of focusing signals
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27
Other optical systems; Other optical apparatus
42
Diffraction optics
44
Grating systems; Zone plate systems
Applicants:
GALORE SCANTEC LTD. [IL/IL]; Building 3 Kiryat Weizmann Science Park 70400 Ness Ziona, IL (AT, AU, BE, CA, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IL, IT, JP, KR, LU, MC, MX, NL, PT, SE, SG)
SCHAHAM, Moshe [US/IL]; IL
Inventors:
SCHAHAM, Moshe; IL
Agent:
COHEN-ZEDEK, Nachman; Eitan, Pearl, Latzer & Cohen-Zedek 2 Gav Yam Center 7 Shenkar Street Herzlia 46725, IL
Priority Data:
12072625.04.1997IL
Title (EN) METHOD AND APPARATUS FOR IMAGING AN OBJECT BY DIFFRACTIVE AUTOFOCUS
(FR) PROCEDE ET APPAREIL POUR L'IMAGERIE D'UN OBJET PAR AUTOFOCUS A DIFFRACTION
Abstract:
(EN) A method and apparatus for illuminating and imaging two-dimensional and three-dimensional objects located at various distances, (151, 152, 153, 154 and 155). The apparatus includes a non-monochromatic light source (20), a diffractive optical element (141) having a strong chromatic aberration.The apparatus focuses various wavelengths of the light beam generated from the source at various focal distances. The various wavelengths of light are the reflected by an object and are received through the diffractive optical element onto an imager.
(FR) Procédé et appareil pour éclairer et mettre en images des objets bi- et tridimensionnels situés à diverses distances (151, 152, 153, 154 et 155). Ledit appareil comprend une source lumineuse non monochromatique (20), un élément optique (141) à diffraction ayant une aberration chromatique importante qui concentre le faisceau lumineux généré par la source à différentes distances focales auxquelles les divers objets sont situés. Les faisceaux lumineux sont ensuite réfléchis par les divers objets et sont reçus à travers l'élément optique à diffraction sur un imageur (130).
Designated States: AU, CA, IL, JP, KR, MX, SG, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0981718US6208465AU1998071365