Abstract: In an apparatus for producing images on a light-sensitive material, the graphic information content for an image that is to be projected onto the light-sensitive material is divided into individual pixels. The projected image is composed of mutually offset partial images that are represented in a transmissive device consisting of an array of transmissive elements. The apparatus includes a light source that generates light rays passing through the transmissive device, an illumination device that bundles the light rays into light beams before they pass through the transmissive device, and a projection objective that projects the light beams telecentrically onto the light-sensitive material.

Abstract: An apparatus for optically projecting pixel-based image information onto a light-sensitive material (12) has an image generator (1) for physically representing the image information in the form of monochrome partial images in different exposure colors. A projected image of the physical representation is produced by an optical projection device (4) which includes an offsetting device (7, 38, 39, 38a, 39a, 38c, 39c) for laterally offsetting the projected image in the image plane of the apparatus. The offsetting device is controlled by a controller means in a manner that is dependent on the exposure color of the monochrome partial image currently being produced by the image generator.

Abstract: An image in the form of image dots produced by one or more pixel generators is projected onto a light-sensitive material with a certain amount of light power over a certain length of exposure time. Each pixel generator is driven by a voltage of periodically alternating polarity which alternates between half-periods of negative voltage and half-periods of positive voltage, with the negative voltage and the positive voltage being equal in absolute magnitude. The exposure time for each image dot is allocated equally to the respective half-periods of negative and positive voltage.

Abstract: In an apparatus for producing images on a light-sensitive material, the graphic information content for an image that is to be projected onto the light-sensitive material is divided into individual pixels. The projected image is composed of mutually offset partial images that are represented in a transmissive device consisting of an array of transmissive elements. The apparatus includes a light source that generates light rays passing through the transmissive device, an illumination device that bundles the light rays into light beams before they pass through the transmissive device, and a projection objective that projects the light beams telecentrically onto the light-sensitive material.

Abstract: A method of producing a pixel-based image on an image carrier (7), where a plurality of pixels are generated simultaneously by an array of pixel-generating elements, has the following steps:

Abstract: A process and device for the output of electronic image signals on light-sensitive recording material is disclosed. A two-dimensional, transmissive display element, in particular a liquid crystal display (LCD), is controlled by the image signals and the beam of at least one light source passes therethrough in the direction of the light-sensitive recording material. During video output, the display element is arranged so near to the recording material that a sharp picture is produced on the recording material without having to position additional focusing, optical means between the display element and the recording material.

Abstract: A method of and printer for printing photographs on light-sensitive paper of a particular format from transparent masters on a roll of film by means of a projector. Both the film and a strip of the paper are advanced through a printing point. The paper is displaced across the direction the film travels in with the center of the prescribed paper format at a distance from the optical axis of the projector. The projector can be adjusted to project the image of the master larger or smaller than the paper format.

Abstract: An exposed and developed photographic filmstrip having a series of image areas is conveyed along a path and is photoelectrically scanned at a first location of the path to detect regions characterized by marked density jumps. A signal is generated in response to detection of each such characteristic region and a first distance measuring device disposed near the first location assigns a first distance reading to each characteristic region upon detection thereof. The first distance readings are representative of the positions of the characteristic regions longitudinally of the filmstrip. Each signal is stored together with the respective first distance reading. The stored signals and first distance readings are used to calculate the positions of the image areas longitudinally of the filmstrip, and the calculated positions are likewise stored. From the first location, the filmstrip travels to a second location of the path where a notch is punched in the filmstrip adjacent to each image area.