摘要:
A photosensor comprises a glass substrate, a photoelectric converting layer comprising a silicon-based amorphous material, and a pair of electrode layers in electrical contact with the photoelectric converting layer, wherein one or both sides of the glass substrate are covered with dielectric layers and the photoelectric converting layer is formed upon the dielectric layer.
摘要:
A line sensor for color reading comprises a plurality of line sensors, each having photosensors arranged one-dimensionally, for the number of the color signals to be separated arranged in parallel with each other on one and the same substrate; and a color filter for color signal separation directly disposed on the light-receiving portion of each of said line sensors. The parallel line sensors may be disposed so as to be non-coplanar, e.g., by provision of insulating layers at least on wiring sections of the first and second line sensors, the second and third line sensors being disposed on the first and second insulating layers, respectively.
摘要:
A color photosensor which includes a plurality of closely arranged sensor units. Each sensor includes a color filter provided at a position corresponding to that of a photoreceptor. The color filter comprises at least one of coloring matter layers selected from the following groups (A), (B) and (C):(A) A red coloring matter layer including, as a main component, perylenetetracarboxylic acid derivatives selected from the following structural formulas (I) and (II): ##STR1## where R.sub.1 denotes hydrogen, an alkyl group or an allyl group; (B) a green coloring matter layer including, as a main component, phthalocyanine coloring matter, a combination of phthalocyanine coloring matter and isoindolenone coloring matter, or a combination of phthalocyanine coloring matter and authraquinone coloring matter; and(C) a blue coloring matter layer including, as a main component, phthalocyanine coloring matter, or a combination of phthalocyanine coloring matter and quinacridon coloring matter.
摘要:
There is a photosensor comprising: a photoconductive layer containing amorphous silicon provided on a substrate in which this photoconductive layer consists of laminated films of two or more layers having different refractive indexes and the refractive index of the lowest layer of the laminated films is not larger than 3.2 for the incident light of a wavelength of 6328 .ANG.; a pair of electrodes provided in electrical contact with the photoconductive layer; and a photo sensing section. A long size image sensor unit is constituted by a plurality of such photosensors arranged like an array, a matrix drive circuit to matrix-drive each photosensor, and a light source such as light emitting diodes of a fluorescent lamp to illuminate an original to be read. With this image sensor unit, it is possible to provide a low-cost image reading apparatus which can read an image on the original at a high speed in which: the uniformity of the characteristic of each photosensor is improved; a variation in signal between the bits is reduced; a correction circuit for such a variation is unnecessary; and the peel-off of the photoconductive layer does not occur. A method of manufacturing such photosensors is also disclosed.
摘要:
A photosensor comprising a photoconductive layer provided on a substrate. The layer contains amorphous silicon. At least a portion of the layer has a refractive index varying continuously through the thickness of the layer. The refractive index of the layer is 3.2 or less at a wavelength of 6,328 .ANG. in the vicinity of the surface of the substrate. A pair of electrodes are provided in electrical contact with the photoconductive layer. A photoreceptor is also provided, part of which is constituted by the spacing between the electrodes of the pair.
摘要:
There is a photosensor comprising: a photoconductive layer containing amorphous silicon provided on a substrate in which this photoconductive layer consists of laminated films of two or more layers having different refractive indexes and the refractive index of the lowest layer of the laminated films is not larger than 3.2 for the incident light of a wavelength of 6328 .ANG.; a pair of electrodes provided in electrical contact with the photoconductive layer; and a photo sensing section. A long size image sensor unit is constituted by a plurality of such photosensors arranged like an array, a matrix drive circuit to matrix-drive each photosensor, and a light source such as light emitting diodes or a fluorescent lamp to illuminate an original to be read. With this image sensor unit, it is possible to provide a low-cost image reading apparatus which can read an image on the original at a high speed in which: the uniformity of the characteristic of each photosensor is improved; a variation in signal between the bits is reduced; a correction circuit for such a variation is unnecessary; and the peel-off of the photoconductive layer does not occur. A method of manufacturing such photosensors is also disclosed.
摘要:
A photosensor comprising a photoconductive layer provided on a substrate. The layer contains amorphous silicon. At least a portion of the layer has a refractive index varying continuously through the thickness of the layer. The refractive index of the layer is 3.2 or less at a wavelength of 6,328 .ANG. in the vicinity of the surface of the substrate. A pair of electrodes are provided in electrical contact with the photoconductive layer. A photoreceptor is also provided, part of which is constituted by the spacing between the electrodes of the pair.
摘要:
A photosensor comprises a first layer, a second layer and a third layer laminated successively, each layer comprising amorphous silicon and the third layer having at least a pair of electrodes separated from each other at a given interval, characterized in that said second layer has p-type semiconductor characteristics, said first layer and said third layer have semiconductor characteristics of a conduction type different from that of said second layer, and at least said first layer has photoconductivity.
摘要:
A photosensor array for use with an image processing apparatus has a plurality of photosensors disposed in an array. Each photosensor includes a substrate, a photoconductive layer formed on the substrate and made of an amorphous silicon, and a pair of electrodes disposed on a surface of the photoconductive layer, the electrodes being spaced apart from each other by a certain distance partially defining a light receiving region of the photosensor. In the phososensor array, the photoconductive layer is constructed as of two or more laminated layers, and the lower layer positioned nearer to the substrate has a low content of oxygen.
摘要:
A liquid-phase growth process comprising immersing a base substrate in a solution containing reactant species to be grown dissolved therein which is accommodated in a crucible and growing a crystal film on said substrate, characterized in that a capping member is kept afloat on the surface of said solution before said substrate is immersed in said solution and said capping member is subsided in said solution upon immersing said substrate in said solution. A liquid-phase growth apparatus suitable for practicing said liquid-phase growth process.