Global patent index - EP 0978084 A1

EP 0978084 A1 2000-02-09 - OPTOELECTRONIC DEVICE FOR IMAGE ACQUISITION, IN PARTICULAR OF BAR CODES

Title (en)

OPTOELECTRONIC DEVICE FOR IMAGE ACQUISITION, IN PARTICULAR OF BAR CODES

Title (de)

OPTOELEKTRONISCHES BILDERFASSUNGSGERÄT, INSBESONDERE FÜR STRICHKODES

Title (fr)

DISPOSITIF OPTOELECTRONIQUE D'ACQUISITION D'IMAGES, NOTAMMENT DE CODES A BARRES

Publication

EP 0978084 A1 (FR)

Application

EP 98921577 A

Priority

  • FR 9800802 W
  • FR 9705102 A

Abstract (en)

[origin: WO9848370A1] The invention concerns a device for image acquisition of objects, in particular of bar codes comprising lighting means (26) provided downstream of optical means (21, 24, 25) and arranged such that the illumination beam axis intersects the optical axis. Moreover, reflecting means (30), allowing the image beam to pass through and reflecting the lighting beam, are arranged so as to intercept said illumination beam, and, are inclined relative to the optical axis, at an angle adapted so that said illumination beam is centred on said optical axis. The invention is characterised in that the lighting means (26) are adapted to light the useful optical field over the entire field depth, and the angle alpha wherein the light source viewed from the object plane is such that alpha </= inverse tangent L/5P L being the width of the object plane and P the distance between the object and the light source.

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

G06K 7/10

IPC 8 full level (invention and additional information)

G06K 7/10 (2006.01)

CPC (invention and additional information)

G06K 7/10831 (2013.01)

Citation (search report)

See references of WO 9848370A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IT LI NL PT SE

EPO simple patent family

WO 9848370 A1 19981029; EP 0978084 A1 20000209; US 6435411 B1 20020820

INPADOC legal status

2002-11-20 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020511

2001-01-31 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20001219

2000-04-05 [RIN1] INVENTOR (CORRECTION)

- Ref Legal Event Code: RIN1

- Inventor name: MASSIEU, JEAN-LOUIS

2000-04-05 [RIN1] INVENTOR (CORRECTION)

- Ref Legal Event Code: RIN1

- Inventor name: PUECH, JEAN-MICHEL

2000-02-09 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19990927

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IT LI NL PT SE