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1. DK0572507 - Laserimagesetter

Office
Denmark
Application Number 92906058
Application Date 21.02.1992
Publication Number 0572507
Publication Date 06.03.1995
Grant Number
Grant Date 06.03.1995
Publication Kind T3
IPC
B41B 19/00
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
BMACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRONIC COMPOSING DEVICES
19Photoelectronic composing machines
B41C 1/055
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
055Thermographic processes for producing formes
B41J 2/44
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
435characterised by selective application of radiation to a printing material or impression-transfer material
44using single radiation source, e.g. lighting beams or shutter arrangements
G03F 7/20
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
20Exposure; Apparatus therefor
CPC
B41B 19/00
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
BMACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
19Photoelectronic composing machines
Applicants PURUP PREPRESS AS
Inventors BALLEGAARD HANS PETER
BERING MIKAEL FONAGER
HANSEN AGNER
Priority Data 31791 22.02.1991 DK
Title
(DA) Laserimagesetter
Abstract
(EN)
An apparatus is described for exposing a film or plate comprising a light-sensitive material to a light beam. The apparatus comprises an apparatus housing having an elongated cavity or drum defining a substantially circularly-cylindrical inner support (100) for supporting the film or plate and defining a central axis, laser means (122, 124, 126) for generating the light beam, a light-directing assembly (102) comprising a laser light-emitter, a rotatable optically reflecting element (170) and an element-rotating motor (178) having a rotatable output shaft connected to the optically reflecting element (170). The laser light-emitter is constituted by the second end of an optical fibre means (122, 124, 126) having a first light-receiving end being arranged in juxtaposition to the laser means for receiving the light beam therefrom. The second light-emitting end is in juxtaposition to the rotatable optically reflecting element (170) at a substantially fixed distance therefrom for emitting the light beam to the rotatable optically reflecting element (170). The rotatable optically reflecting element is arranged so as to direct the light beam to the light-sensitive film or plate, and the light-directing assembly (102) is movable relative thereto along the central axis. The apparatus further comprises motion means for moving the light-directing assembly (102) relative to the apparatus housing along the central axis, and central control means for controlling the laser means (122, 124, 126), the element-rotating motor (178), and the motion means so as to expose a predetermined area of the photographic film.