Process and device for the output of electronic image signals, and a photographic copier

A process for output of electronic imaging signals on a light-sensitive recording material (29) in a photographic copying apparatus (2) adapted for copying an image master (49) of a photographic film (24) on light-sensitive recording material (29), comprising the steps of

• (a) controlling a transmissive display element (26) by the imaging signals;
• (b) passing a beam of light from a light source (31) through the display element (26) in the direction of the light-sensitive recording material (29);
• (c) upon obtaining the image output, positioning the display element (26) adjacent to the recording material (29) that a sharp image is produced on the recording material (29), without necessitating positioning an optical focusing means between the display element (26) and the recording material (29);
• (d) upon obtaining the imaging signals output positioning the display element (26) in the same optical beam path in which an image master (49) is also positioned during the copying operation of the image master;
• wherein the electronic imaging signals includes image information comprised in the image master (49) that can be copied with the photographic copying apparatus (2), and using the light source (31) to irradiate the image master (49) in the direction of the light-sensitive recording material (29);
• and tilting the display elements (26) into a illuminating position for providing the output of the image.

An apparatus for output of electronic imaging signals on a light-sensitive recording material (29) in a photographic copying apparatus (2) adapted for copying an image master (49) of a photographic film (24) on light-sensitive recording material (29), comprising

• a two-dimensional transmissive display element (26), that can be controlled by the imaging signals;
• and
• a light source (31) for irradiating the display element (26) through an objective in the direction of the recording material (29), wherein
• when an output for the image is provided, the display element (26) is positioned adjacent to the recording material (29) so that a sharp image is produced on the recording material (29), without positioning focusing optical means between the display element (26) and the recording material (29), and
• when an output for the imaging signals is provided, the display element (26) can be movably positioned in the same optical beam path in which an image master (49) is positioned when the image master is copied,
• wherein the electronic imaging signals comprise image information comprised in the image master (49) that can be copied with the photographic copying apparatus (2), and
• the light source (31) for irradiating the display element (26) is arranged in such a way that the light source (31) can also be used to illuminate the image master (49).

An apparatus for output of electronic imaging signals on a light-sensitive recording material (29) in a photographic copying apparatus (2) adapted for copying an image master (49) of a photographic film (24) on light-sensitive recording material (29), comprising

• a two-dimensional transmissive display element (26), that can be controlled by the imaging signals;
• and
• a light source (31) for irradiating the display element (26) in the direction of the recording material (29), wherein
• when an output for the image is provided the display element (26) is positioned adjacent to the recording material (29) so that a sharp image is produced on the recording material (29), without positioning focusing optical means between the display element (26) and the recording material (29), and
• when an output for the imaging signals is provided, the display element (26) can be positioned in the same optical beam path in which an image master (49) is positioned when the image master is copied,
• wherein the electronic imaging signals comprise image information comprised in the image master (49) that can be copied with the photographic copying apparatus (2), and
• the light source (31) for irradiating the display element (26) is arranged in such a way that the light source (31) can also be used to illuminate the image master (49);
• and
• comprising a tilting device (40, 43, 44) for moving the display element (26) into an exposure position.

A photographic copying apparatus, comprising an exposure device (25) for output of electronic imaging signals on a light-sensitive recording material (29) in a photographic copying apparatus (2) adapted for copying an image master (49) of a photographic film (24) on light-sensitive recording material (29), comprising

• a two-dimensional transmissive display element (26), being controlled by the imaging signals;
• and
• a light source (31) for irradiating the display element (26) through an objective in the direction of the recording material (29), wherein
• when an output for the image is provided, the display element (26) being movably positioned adjacent to the recording material (29) that a sharp image is produced on the recording material (29), without positioning focusing optical means between the display element (26) and the recording material (29), and
• when an output for the imaging signals is provided, the display element (26) can be positioned in the same optical beam path in which an image master (49) is positioned when the image master is copied,
• wherein the electronic imaging signals comprise image information comprised in the image master (49) that can be copied with the photographic copying apparatus (2), and
• the light source (31) for irradiating the display element (26) is arranged in such a way that the light source (31) can also be used to illuminate the image master (49).

A photographic copying apparatus, comprising an exposure device (25) for output of electronic imaging signals on a light-sensitive recording material (29) in a photographic copying apparatus (2) adapted for copying an image master (49) of a photographic film (24) on light-sensitive recording material (29), comprising

• a two-dimensional transmissive display element (26), being controlled by the imaging signals;
• and
• a light source (31) for irradiating the display element (26) in the direction of the recording material (29), wherein when an output for the image is provided, the display element (26) can be positioned so close to the recording material (29) that a sharp image is produced on the recording material (29), without positioning focusing optical means between the display element (26) and the recording material (29), and
• when an output for the imaging signals is provided, the display element (26) being positioned in the same optical beam path in which an image master (49) is positioned when the image master is copied,
• wherein the electronic imaging signals comprise image information comprised in the image master (49) that are copied with the photographic coping apparatus (2), and
• the light source (31) for irradiating the display element (26) is arranged such that the light source (31) are also be used to illuminate the image master (49), and
• a zoom objective (22) being disposed between a stage (12) adapted to receive a copy master (24) and the recording material (29);
• a scattering foil (39) disposed between the light source (31) and the zoom objective (2);
• the light source (31), the objective (22) and the display element (26) being adjusted to each other such that the position and the size of the exit pupil (52) of the objective (22) results in a divergent illumination of the display element (26) with a predetermined divergence angle;
• and
• wherein the display element (26) is displaced laterally relative to the optical axis extending through the light source (31) and the zoom objective (22).