Global patent index - EP 0995144 A1

EP 0995144 A1 2000-04-26 - ANAMORPHIC SCAN LENS FOR LASER SCANNER

Title (en)

ANAMORPHIC SCAN LENS FOR LASER SCANNER

Title (de)

ANAMORPHOTISCHE ABTASTLINSE FÜR LASERABTASTER

Title (fr)

OBJECTIF DE BALAYAGE ANAMORPHOSEUR POUR LECTEUR LASER

Publication

EP 0995144 A1 (EN)

Application

EP 98930259 A

Priority

  • US 9812464 W
  • US 5280097 P
  • US 8243398 A

Abstract (en)

[origin: WO9903012A1] An anamorphic, catadioptric scan lens simultaneously corrects for distortion, polygon mirror wobble, and flat-field telecentric scanning of polychromatic laser light that is injected sagittally onto the polygon mirror. This system is also capable of imaging multiple beams and is corrected for differential distortion. The scan lens is incorporated in a photolithographic image scanner.

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

G02B 26/12; G02B 27/00; G03F 7/20

IPC 8 full level (invention and additional information)

G02B 17/08 (2006.01); G02B 26/10 (2006.01); G02B 26/12 (2006.01); G03F 7/20 (2006.01)

CPC (invention and additional information)

G03F 7/704 (2013.01); G02B 26/125 (2013.01); G03F 7/2053 (2013.01)

Citation (search report)

See references of WO 9903012A1

Designated contracting state (EPC)

DE GB NL SE

EPO simple patent family

WO 9903012 A1 19990121; CA 2296595 A1 19990121; EP 0995144 A1 20000426; IL 133751 D0 20010430; JP 2001509613 A 20010724; KR 20010014242 A 20010226; TW 394853 B 20000621

INPADOC legal status

2002-10-09 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020331

2002-01-02 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20011120

2000-04-26 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991220

2000-04-26 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE GB NL SE