Global Patent Index - EP 0981718 A1

EP 0981718 A1 2000-03-01 - METHOD AND APPARATUS FOR IMAGING AN OBJECT BY DIFFRACTIVE AUTOFOCUS

Title (en)

METHOD AND APPARATUS FOR IMAGING AN OBJECT BY DIFFRACTIVE AUTOFOCUS

Title (de)

VERFAHREN UND APPARAT ZUR ABBILDUNG EINES OBJEKTES MITTELS DIFFRAKTIONSAUTOFOKUS

Title (fr)

PROCEDE ET APPAREIL POUR L'IMAGERIE D'UN OBJET PAR AUTOFOCUS A DIFFRACTION

Publication

EP 0981718 A1 (EN)

Application

EP 98918443 A

Priority

  • IL 12072697 A
  • US 9807884 W

Abstract (en)

[origin: WO9849522A1] 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 that focuses the light beam generated from the source at various focal distances at where the various objects are located. The light beams are then reflected by the various objects and are received through the diffractive optical element onto an imager (130).

IPC 1-7 (main, further and additional classification)

G01B 11/24; G01J 3/40; G11B 7/09

IPC 8 full level (invention and additional information)

G01B 11/02 (2006.01); G02B 7/28 (2006.01); G02B 27/44 (2006.01)

CPC (invention and additional information)

G02B 27/4227 (2013.01); G01B 11/026 (2013.01); G02B 7/28 (2013.01); G02B 27/4244 (2013.01); G02B 27/425 (2013.01); G01B 2210/50 (2013.01)

Citation (search report)

See references of WO 9849522A1

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9849522 A1 19981105; AU 7136598 A 19981124; EP 0981718 A1 20000301; IL 120726 D0 19970814

INPADOC legal status


2002-05-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011101

2000-03-01 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991111

2000-03-01 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT NL