摘要:
A propsed apparatus comprising a film reel, a film feeder, a vacuum film holder and a mechanism adapted to move the feeder along the plate is adapted for use in the projection-back in process camera device. These members are arranged such that a film which is being unwound away from the reel is gradually sucked onto said film holder with the movement of said feeder guided by the mechanism. The apparatus may include a film cutter for cutting the film after each stroke of said feeder together with a sheet reel having a wound sheet and adapted to supply it for closing up sucking apertures of said holder portion not covered with the film.
摘要:
A method and apparatus for reproducing a desired portion of letters and/or patterns in an original on a copying paper, wherein the system is computerized so as to obtain the necessary information from the data stored with respect to the distance components derived from the original, and on the basis of the information, an area excluding the desired portion of the original is deelectrified so as to exclude the area from the expected reproduction of the desired portion on the copying paper.
摘要:
A method for obtaining a composite color picture out of a plurality of original pictures and a camera employing the method are disclosed, wherein a plurality of original color picture are selectively exposed on a sheet of film one by one in a sequential manner with appropriate color compensation, magnification or reduction in size, and proper masking conducted upon each exposure. Both photographic film on which to duplicate composite picture and the original pictures are displaced across and on the optical center line of a camera in such a manner that, on the composite photographic picture thus obtained, the original pictures are laid out according to a plan.
摘要:
A method and an apparatus for color compensation exposure are disclosed, wherein, a color compensation exposure is performed firstly with white light only, secondly with a primary filter, and thirdly with a secondary filter in combination with the primary filter, and the time periods of these partial exposures are computed according to a certain algorithm from information on the required kind of color compensation expressed in terms of partial indices of color compensation filters.
摘要:
An automatic masking device including an aperture extension means for use in a printer, wherein a reproduction picture to be projected onto a photosensitive film sheet mounted on a holder is masked by masking plates which are arranged in front of the holder, and are adapted to be movable over the surface of the holder so as to open and close an aperture between the masking plates, and which are adapted to be settled to form the aperture of the predetermined size, and wherein the aperture extension means is capable of extending the aperture beyond the predetermined size and of returning it to the predetermined size.