Apparatus having more than one separate object to project along partially separate optical paths having the same image plane for simultaneous superposition of the images of the two objects. The objects are transparencies with one containing the information to be imaged and the other premade to be the border for it. Both objects move in a carriage relative to an exposure slit for simultaneous scanning projection onto a moving member at the image plane.
A governing mode change-over apparatus of a steam turbine comprising a switching arrangement between a throttle governing mode and a nozzle governing mode, and an arrangement for controlling a load by selectively subjecting one of the steam control valves to load control during the governing mode switching, whereby the turbine is switched from one of the throttle and the nozzle governing modes to another with a limited fluctuation of the load.
A laser scanning microscope having a first scanning optical system that causes coherent light projected from a first laser light source to scan a specimen, and a second scanning optical system that projects coherent light output from a second laser light source at a given position on the specimen. Fluorescence from the specimen is measured by a photoelectric conversion element.
Method and apparatus for electrophotographically producing high quality reproductions which contain different content types. Photoconductor image sectors are subjected to separate, component exposures selected for (1) good tone-scale reproduction of continuous-tone image portions and (2) high-contrast reproduction of line-type image portions. Photoconductor background areas, which border continuous-tone image portions, are exposed to a discharge level below the system's development level.
Method and apparatus for electrophotographically producing high quality reproductions which contain different content types. Photoconductor image sectors are subjected to separate, component exposures selected for (1) good tone-scale reproduction of continuous-tone image portions and (2) high-contrast reproduction of line-type image portions. Photoconductor background areas, which border continuous-tone image portions, are exposed to a discharge level below the system's development level.
An image reading apparatus of the present invention enlarges and reads a small light-permeable document such as a photographic film. In the apparatus of the present invention, an image of a film is divided into strips and is projected on a part of a main-scanning direction of a line image sensor. The film is then moved in a direction corresponding to the main-scanning direction of the line image sensor, thereby reading the image of the whole area of the film.
