Abstract: A piezoelectric on-off value for air conditioning comprises a bendable metal plate fixed at one end thereof; a valve member mounted on the other end of the metal plate along a ceiling plate, the value member having vent holes corresponding to vent holes in the ceiling plate, and the valve member changing the relative closure of the vent holes when the metal plate is deformed by application of voltage to the piezoelectric ceramic.

Abstract: An information recording method and apparatus capable of reducing the access time of a recording medium disc at the time of each reading are disclosed. In photoelectric conversion of information patterns for use in information recording, a scanning coordinate of a photoelectric conversion is caused to coincide with the direction of a prescribed coordinate of a received light pattern. Furthermore, a hologram information reproducing apparatus for use in a character producing apparatus is disclosed which employs a flexible light condensing photo-transmitter whose shape is determined by a reproduction light.

Abstract: An information recording method and apparatus capable of reducing the access time of a recording medium disc at the time of each reading are disclosed. In photoelectric conversion of information patterns for use in an information recording, a scanning coordinate of a photoelectric conversion is caused to coincide with the direction of a prescribed coordinate of a received light pattern. Furthermore, a hologram information reproducing apparatus for use in a character producing apparatus is disclosed, which employs a flexible light condensing photo-transmitter whose shape is determined by a reproduction light.

Abstract: A focussing optical fiber array is disposed between an original document carrier and a photosensitive member such as a photoconductive sheet to focus an image of a linear portion of an original document onto the sheet. A reflector means comprising a plurality of mirrors or prisms is provided between the optical fiber array and the sheet. The reflector means provides an inverted image by reflecting the image an odd number of times which is at least three times. The reflector means reflects the image onto the sheet parallel to the axis of the optical fiber array. A drive means produces relative scanning movement between the document carrier, optical fiber array and sheet.

Abstract: A bundle of illuminating optical fibers conveys light from a light source to an area on a document in which a mark may be present or absent. A bundle of reading optical fibers conveys light reflected from the area to a light sensor. The amount of conveyed light is less when the mark is present than when the mark is absent so that the light sensor may determine whether the mark is present. The optical axes of the optical fibers are perpendicular to the document at the ends thereof facing the document. The width of the reading optical fiber bundle and the distance of the reading optical fiber bundle from the illuminating optical fiber bundle are selected to provide maximum contrast between marks and the background of the document so that glossy marks made by pencil as well as non-glossy marks made by felt-tip pen or the like can be reliably read.