摘要:
A method for forming an image on a planographic printing plate precursor including a substrate and an image recording layer disposed thereon, the layer including a hydrophobic precursor and a light-to-heat converting agent. The method includes an image exposing process of exposing the planographic printing plate precursor to infrared radiation to form an image on the image recording layer of the planographic printing plate precursor, and a post-heating process of heating the planographic printing plate precursor to a predetermined heating temperature.
摘要:
The multi-beam exposure apparatus includes a light source for emitting a specified number of multi-beams spaced apart in a direction of auxiliary scanning, a deflecting unit for deflecting the specified number of multi-beams collectively on main scanning lines by a specified number of deflections such that a space between adjacent ones of the specified number of multi-beams is exposed and a main scanning unit for performing main scan of a recording material as it is exposed with the specified number of multi-beams, wherein the space between adjacent ones of the specified number of multi-beams is an integral multiple of (the specified number of deflections + 1) multiplied by a pitch of pixels in the direction of auxiliary scanning.
摘要:
A method for forming an image on a planographic printing plate precursor including a substrate and an image recording layer disposed thereon, the layer including a hydrophobic precursor and a light-to-heat converting agent. The method includes an image exposing process of exposing the planographic printing plate precursor to infrared radiation to form an image on the image recording layer of the planographic printing plate precursor, and a post-heating process of heating the planographic printing plate precursor to a predetermined heating temperature.
摘要:
The present invention provides an image forming method on a planographic printing plate precursor (12) for plate-making in which an image is exposed to light by scanning with an infrared beam (L) and which obviates development using any developing liquid, as well as an image exposure apparatus used in the method. The plate precursor contains microcapsules and the method involves preheating the precursor prior to image recording.
摘要:
The multi-beam exposure apparatus includes a light source for emitting a specified number of multi-beams spaced apart in a direction of auxiliary scanning, a deflecting unit for deflecting the specified number of multi-beams collectively on main scanning lines by a specified number of deflections such that a space between adjacent ones of the specified number of multi-beams is exposed and a main scanning unit for performing main scan of a recording material as it is exposed with the specified number of multi-beams, wherein the space between adjacent ones of the specified number of multi-beams is an integral multiple of (the specified number of deflections + 1) multiplied by a pitch of pixels in the direction of auxiliary scanning.
摘要:
The invention relates to a photographic printer for printing a frame recorded on a photographic film or a film scanner for scanning a frame recorded on a photographic film, comprising a film carrier in which a frame of a photographic film is set, a light source for illuminating said frame of said photographic film set in said film carrier, said light source including diode elements disposed in a matrix for emitting light of red, green and blue colors, said light source illuminating said frame from behind, and an image sensor, constituted by plural cells, for measuring said frame illuminated by said light source photometrically at minute regions of said frame, wherein said diode elements are arranged like a grating, and means are provided for performing three-color sequential photometry or pick-up for said frame recorded on said photographic film.
摘要:
A light beam scanning system comprises a wave guide formed of a material allowing propagation of surface acoustic waves therethrough, and a means for generating the surface acoustic waves in the wave guide so that they advance along an optical path of light incident upon the wave guide, and a drive circuit for periodically applying a pulsewise voltage to the surface acoustic wave generating means. The wave guided inside of the wave guide is emitted out of the wave guide at the section where the surface acoustic waves are present by a coupling action of a grating generated by the surface acoustic waves with the guided wave.
摘要:
The method and apparatus make a printing plate such as a lithographic printing plate by exposing an original plate of the printing plate such as a presensitized plate in a substantially oxygen-free state. The method and apparatus deprive substantially of oxygen at least an exposed area of the original plate being exposed to light at least during exposure and expose the original plate to the light at a wavelength of between 250 nm and 420 nm. The original plate has on a support an image recording layer containing a polymerization initiator, a polymerizable compound and a binder polymer, being sensitive to the light at the wavelengths of between 250 nm and 420 nm, having no oxygen barrier layer, and being removable with a printing ink and/or a fountain solution. That is, a latent image is formed by photo-polymerization on the original plate and the original plate is subjected to development on a printing press.
摘要:
The present invention provides an image forming method on a planographic printing plate precursor (12) for plate-making in which an image is exposed to light by scanning with an infrared beam (L) and which obviates development using any developing liquid, as well as an image exposure apparatus used in the method. The plate precursor contains microcapsules and the method involves preheating the precursor prior to image recording.