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Machine translation
1. (WO1980002819) LASER DEVICE FOR MANUFACTURING PRINTING PLATES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/002819    International Application No.:    PCT/SU1979/000039
Publication Date: 24.12.1980 International Filing Date: 14.06.1979
IPC:
H04N 1/405 (2006.01)
Applicants:
Inventors:
Priority Data:
SU79/00039 14.06.1979 WO
Title (EN) LASER DEVICE FOR MANUFACTURING PRINTING PLATES
(FR) DISPOSITIF A LASER POUR LA FABRICATION DE PLAQUES D"IMPRESSION
Abstract: front page image
(EN)A laser device for manufacturing printing plates comprises a system of synchronous scanning of a pattern-master and of a plate material, an optoelectronic reading unit (16) and a generator (17) of raster impulses optically interconnected with the system of synchronous scanning and connected to an electronic circuit providing for generation of sequence of signals, controlling parameters of the laser radiation, which allows to obtain, during a single technological cycle, both the line and half-tone structures on the plate material, that electronic circuit comprising, connected in parallel, a line and raster channels, a raster-line commutator (28), switching automatically the line and raster channels, a unit (31) of fixation of boundaries of half-tone images kinematically interconnected with the system of synchronous scanning of the pattern-master and the plate material and generating commands to the raster-line commutator (28), and comprises as well a laser-optical system of forming images on the surface of the plate material with the use of a laser modulator (42).
(FR)Un dispositif a laser pour la fabrication de plaques d"impression comprend un systeme d"exploration synchrone d"une planche maitresse et d"un materiau en plaque, et une unite de lecture opto-electronique (16) et un generateur (17) d"impulsions de trames interconnectees au systeme d"exploration synchrone et connectees a un circuit electronique de production de signaux sequentiels, controlant les parametres des rayons laser, ce qui permet d"obtenir, pendant un seul cycle technologique, a la fois les structures de ligne et de demi-ton sur le materiau en plaque; ce circuit electronique comprend connectes en parallele, des canaux de lignes et de trames, un commutateur trame-ligne (28) pour la commutation automatique des canaux de lignes et de trames, une unite (31) de fixation des frontieres des images demi-ton cinematiquement interconnectees au systeme d"exploration synchrone de la planche maitresse et du materiau en plaque et commandant le commutateur trame-ligne (28), et comprend egalement un systeme laser-optique de formation d"image sur la surface du materiau en plaque a l"aide d"un modulateur a laser (42).
Designated States:
Publication Language: Russian (RU)
Filing Language: Russian (RU)