摘要:
The invention concerns a device for digital image projection on a photosensitive support comprising: a digital image display device (5) having no integrated light source; a printing station (2, 3) arranged at some distance in a relative position defined with respect to the digital image display device (5); a delocalized warm light source (10); means (9) for applying cold light interposed between the warm light source (10) and the digital image display device (5); a shutter (11) interposed between the warm light source (10) and the cold light applying means (9); and an electronic control device (6) for positioning of the photosensitive support (1) in the printing station (2, 3), displaying the digital image on the digital image display device (4), and selectively opening the shutter (11).
摘要:
An apparatus and method for compensating for light falloff in a film master frame of a photographic image. A masking unit is positioned between the master frame and copy material in an optical printer. The masking unit may be an LCD panel. A controller calculates a light falloff compensation function to produce a light falloff correction parameter that is used to control the transmittance values of a plurality of pixels in the masking unit. When a photographic copy is made, the masking function serves to counteract light falloff that existed in the master frame to produce a copy with reduced effect from light falloff. Control and selection of the light falloff compensation function can be based on a number of factors related to the camera type, lens type, film type, flash type, and other factors that created the light falloff on the master frame. In addition, one or more of the master frames from a roll of film may be scanned to generate data to drive the light falloff compensation function. The data may be averaged to improve performance of the system.
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:
An image printer (1) includes a projection exposure unit (5) for projecting and exposing a film (2) image on to a photosensitive material, an image exposure unit I for exposing the photosensitive material (3) based on exposure image information with setting an exposure amount for each of a plurality of areas, an image reader (15) for reading information of the film image with the information being divided into a number of areas, and a correction-information instructing unit for instructing correction information for correcting the image information read by the image reader. The image exposure unit I generates the exposure image information based on the image information read by the image reader means and on the correction information instructed by the correction-information instructing unit.
摘要:
The hybrid colour photography printing system utilizes a photographic printing machine of the type comprising an optical projection system (GO) and an electronic reproduction system (GE) installed together in a single unit, designed to generate respective images (FO, FE) for transfer to a sheet of light-sensitive paper (7); following exposure, the light-sensitive paper (7) is treated chemically and dried to produce a colour print. In the hybrid system, images (FO) of optical origin and images (FE) of electronic origin are projected onto a single sheet of light-sensitive paper (7), and with a simple modification to the operation of the optical projection system (GO) consisting in the interposition of a mask (81 or 82) with opaque areas (81a, 81b or 82a, 82b) of given shape and dimensions, placed over the film (2) bearing the image (FO) or over the sheet of light-sensitive paper (7), it becomes possible to leave selected areas (71, 72) of the paper unexposed; these same areas will receive corresponding images (FE) reproduced with the electronic system (GE), thereby completing the composition of the hybrid image that appears ultimately in the photograph.
摘要:
An image recording apparatus 20 comprises a store 2 for storing data representing an image, a cathode ray tube 5 for displaying the image represented by the data in raster scan order and a camera 7 for directing the displayed image onto film 10. A movable mask 21 is positioned in front of the screen of the cathode ray tube 5. The mask defines an aperture 25 which is moved over the screen of the tube 5 as the image is displayed thereon so as to prevent unwanted light caused by the displaying of the image from being directed onto the film 10.
摘要:
An image processing apparatus includes a light modulator (10), an analog writing system (11) for analogously writing an image of an original in the light modulator, a digital reading system (13) for digitally reading the written image out of the light modulator, a processing section (15) for processing the read image data, a digital writing system (14) for digitally writing the processed image in the light modulator, and an analog reading system (12) for analogously reading the image written on the light modulator. The light modulator includes a photoconductive material, a liquid crystal layer laminated on the photoconductive material, and a pair of electrodes sandwiching the photoconductive material and the liquid crystal layer. The liquid crystal layer can provide a storage function so as to enable the reading and writing of the image from the same direction.