Global Patent Index - EP 1038684 A1

EP 1038684 A1 2000-09-27 - Optical printer head

Title (en)

Optical printer head

Title (de)

Optischer Druckkopf

Title (fr)

Tête d'impression optique

Publication

EP 1038684 A1 (EN)

Application

EP 00302399 A

Priority

JP 7793599 A

Abstract (en)

An optical printer head including a plurality of light sources (1,2) which is capable of providing a distinct image free of colour shade and colour fading. ion-like lights different in luminous colour emitted from a plurality of fluorescent luminous tubes (1,2) acting as the light sources are guided to a common equi-magnification image formation element (12) using a dichroic optical element (10), so that they are superposed on each other on a record medium (7) while being kept aligned with each other, resulting in an image being formed on the record medium (7). The optical members (1,2) are so arranged that optical path lengths of the dot-like lights different in luminous colour may be rendered substantially equal to each other. <IMAGE>

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

B41J 2/447; B41J 2/525; G02B 26/10

IPC 8 full level (invention and additional information)

H04N 1/036 (2006.01); B41J 2/44 (2006.01); B41J 2/447 (2006.01); B41J 2/45 (2006.01); B41J 2/525 (2006.01)

CPC (invention and additional information)

B41J 2/525 (2013.01); B41J 2/4476 (2013.01); B41J 2/451 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

EP 1038684 A1 20000927; JP 2000272164 A 20001003; JP 4231583 B2 20090304; KR 100378025 B1 20030329

INPADOC legal status


2008-02-27 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Effective date: 20080117

2001-06-13 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Free Format Text: DE FR GB

2001-01-03 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001106

2000-09-27 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB

2000-09-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI