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


EP 1038684 A1 (EN)


EP 00302399 A


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)


DOCDB simple family

EP 1038684 A1 20000927; JP 2000272164 A 20001003; JP 4231583 B2 20090304; KR 100378025 B1 20030329; KR 20000062987 A 20001025