摘要:
An apparatus for processing information carried by an electro-magnetic radiation beam. The apparatus includes a charge holding member for storing a charge latent image, a generator for generating an electro-magnetic radiation beam which is a superimposition of a plurality of electro-magnetic radiation beams with different wavelength ranges, a filter for separating the superimposed beam into the plurality of electro-magnetic radiation beams and a photo-conductive member provided adjacent to the charge latent image holding member and having an impedance which varies according to the intensity of each of the plurality of beams separated by the filter. Charge latent images corresponding to each of the plurality of beams are thus recorded on the charge latent image holding member. The charge latent images thus recorded on the charge latent image holding member are reproduced by means of a photo-modulation member provided instead of a photo-conductive member.
摘要:
There are provided a method of modulating a photo-modulation layer correspondingly with an electric field applied thereto by applying an alternating electric field to a semiconductor layer disposed adjacent to the photo-modulation layer to vary a thickness of a depletion layer thereof responsive to the alternating electric field and applying the electric field to the photo-modulation layer while the alternating electric field is applied to the semiconductor layer and varying the thickness of the depletion layer, and a system for reproducing a charge latent image recorded in a recording medium which has at least a charge hold layer holding the charge latent image comprising a photo-modulation layer disposed adjacent to the recording medium so as to be subjected to an electric field generated by the charge latent image held on the charge hold layer, a semiconductor layer disposed adjacent to the photo-modulation layer, the semiconductor layer having a depletion layer which has a capacitance variable in response to an applied varying electric field, means for applying the varying electric field to the semiconductor layer for varying the capacitance of the depletion layer thus subjecting the electric field generated by the charge latent image being applied to the photo-modulation layer and means for projecting a reading light passing through the photo-modulation layer and for detecting modulation of the reading light passed therethrough.
摘要:
A voltage is electrostatically induced at a sensing device in correspondence with a surface potential of a measured object. In the case where the sensing device uses a field effect transistor in transferring detected information, there are some factors decreasing the accuracy of detection. Various new arrangements prevent such decreases in the accuracy of detection. In the case of the surface potential of the measured object corresponds to an optical image, new arrangements ensure accurate detection of the optical image. In some cases, color component signals are obtained on the basis of a detection signal.
摘要:
An apparatus for reading out a charge latent image from a recording medium includes a photo-modulation member exposed to an electric field from the recording medium and exposed to reading light. The photo-modulation member varies a condition of the reading light in accordance with the electric field. A photoconductive member is disposed between the recording medium and the photo-modulation member. Control light is applied to the photoconductive member. The control light has an intensity which varies with respect to time.
摘要:
A set of birefringent members disposed in a path of light has an input surface via which the light enters the set and an output surface via which the light exits from the set. The birefringent members are designed and arranged so that the light separates into an ordinary ray and an extraordinary ray after the light enters the set via the input surface, that the ordinary ray and the extraordinary ray proceed along different courses respectively in the set, and that the ordinary ray and the extraordinary ray meet together where the ordinary ray and the extraordinary ray exit from the set via the output surface.
摘要:
A plurality of field effect transistors are arranged in a line and have isolated open gates respectively. The gates are opposed to a surface of a charge storage medium and are subjected to respective induced voltages corresponding to a distribution of an electric surface potential of the medium. The transistors are enabled to output signals corresponding to the induced voltages respectively. The signals are sequentially transmitted from the transistors to an output terminal to generate an electric signal representative of the distribution of the electric surface potential of the medium.
摘要:
There is provided a photoelectric conversion device for an electro-magnetic radiation beam incident thereto, into a charge pattern, the electro-magnetic radiation beam carrying information intended to be recorded. The device has electrodes, a photo-conductive layer member laminated to the electrodes having maximum thickness and a surface defining the maximum thickness between the electrodes, and a gap defined between the surface and a recording member disposed to face the surface of the photo-conductive layer member. There is further provided an apparatus for recording a charge latent image without losing the high resolution. The apparatus has a photoelectric conversion device having an electrode and a photo-conductive layer member on which the charge latent image is generated by projecting an optical image carrying information signals to the photo-conductive layer member, and a recording member having an electrode and a charge holding layer member facing the photo-conductive layer member to form a gap therebetween. A predetermined voltage is applied between the electrodes of the photoelectric conversion device and the recording member to transfer the charge latent image to the charge holding member by spark discharge.
摘要:
An image pickup apparatus comprising: a charge storage member being movable; a photo-charge conversion unit comprising a photoconductive layer member having a transparent electrode, an electrode, and means for applying an electric field between said transparent electrode and said electrode, said photo-charge conversion unit opposing said charge storage member; and means for focussing an optical image of an object through said transparent electrode onto an image focussing surface of said photo-charge conversion unit via a taking lens, and for forming an electric charge image corresponding to said optical image of the object on said charge storage member. The image pickup apparatus may further comprises reading means for reading said electric charge image corresponding to said optical image and generating an electrical signal according to said electric charge image by opposing said charge storage member.
摘要:
A method of information conversion in which a recording medium is composed of a photoconductive member and a photo-modulation member both exhibiting a photoelectric effect and a dielectric mirror interposed therebetween, laminated to each other. An electro-magnetic radiation beam intensity-modulated with a serial information to be converted is radiated to the photoconductive member. The radiated beam is deflected straight along a surface of the photoconductive member to form a charge image composed of electric charges having an electric charge quantity corresponding to the information, as arranged in a straight line in a region on a border between the photoconductive member and dielectric mirror, corresponding to a region of the photoconductive member to which the beam is radiated. A two-dimensional bundle of electro-magnetic radiation beams of constant intensity and covering the region on the border is radiated to the recording medium at the photo-modulation member side thereof to take out a two-dimensional bundle of electro-magnetic radiation beams exhibiting intensity variation subjected to the charge image due to the photoelectric effect from the recording medium.
摘要:
An electromagnetic radiation beam scanning system for scanning an object with an electromagnetic radiation beam. The scanning system comprises first and second beam-narrowing devices which are arranged so as to have elongated light-transmission regions, respectively, and which are overlapped each other so that the light-transmission regions intersect each other. Each of the beam-narrowing devices includes a light modulation layer showing an electro-optic effect, first and second electrodes disposed so as to sandwich the light modulation layer, first and second polarizers disposed so as to sandwich the light modulation layer and a power source for applying voltages to the first and second electrodes. The light modulation layer combined with the polarizers forms the elongated light-transmission region in response to application of the voltages to the first and second electrodes due to the power source so as to produce a narrowed beam when a light beam is incident thereon. The position of each of the light-transmission regions in each of the first and second beam-narrowing devices is arranged to be movable in response to variation of at least one of the application voltages due to the power source.