摘要:
Digitizing apparatus for reproducing information from an image-bearing member, said apparatus including a wand removably mounted on a base station. The wand is adapted for independent operation to manually scan said image-bearing member or the wand can be secured to the base station for automatically scanning said image-bearing member.
摘要:
The recording of surface topology is obtained by first bringing the surface into contact with the imaging material-coated side of a dry process dispersion type recording film comprising a transparent substrate on which is coated a very thin, high optical density, opaque body of imaging material, preferably coated with a thin abrasion-resistant protective layer. Radiant energy is then momentarily directed to the imaging material through the transparent substrate. When the heat generated by the absorbed radiant energy is above a given threshold value at a particular location of the imaging material, the material deforms and disperses thereat to form connected or unconnected globules with spaces therebetween. Upon termination of the radiant energy, the dispersed material becomes frozen in place. It was discovered that when a surface having projections and/or depressions, (for example, like that found on the surface of animal or plant tissue) is brought into contact with the recording film as described, at least the projecting portions thereof act as high resolution heat sinks which carry away heat from the imaging material in accordance with the intimacy of contact between the surface involved to be recorded and the side of the recording film contacted thereby, so that heavily heat-sinked points remain opaque and points unengaged by the surface become relatively transparent, to provide a high resolution picture of the surface topology of the contacting body.
摘要:
The recording of surface topology is obtained by first bringing the surface into contact with the imaging material-coated side of a dry process dispersion type recording film comprising a transparent substrate on which is coated a very thin, high optical density, opaque body of imaging material, preferably coated with a thin abrasion-resistant protective layer. Radiant energy is then momentarily directed to the imaging material through the transparent substrate. When the heat generated by the absorbed radiant energy is above a given threshold value at a particular location of the imaging material, the material deforms and disperses thereat to form connected or unconnected globules with spaces therebetween. Upon termination of the radiant energy, the dispersed material becomes frozen in place. It was discovered that when a surface having projections and/or depressions, (for example, like that found on the surface of animal or plant tissue) is brought into contact with the recording film as described, at least the projecting portions thereof act as high resolution heat sinks which carry away heat from the imaging material in accordance with the intimacy of contact between the surface involved to be recorded and the side of the recording film contacted thereby, so that heavily heat-sinked points remain opaque and points unengaged by the surface become relatively transparent, to provide a high resolution picture of the surface topology of the contacting body.
摘要:
The imaging layers coated side of a heat-responsive recording medium is selectively heat-sinked by the raised portions of live skin tissue contacting the same so that only the unheat-sinked portions of the recording medium will reach an imaging temperature. The source of heat for the film may be a flash lamp directed against the opposite substrate side of the film where the electromagnetic energy thereof is converted into heat when absorbed by the substrate, or may be a source of externally applied heat transmitted through the substrate to the imaging layer of the film. In the latter case, the recording medium is preferably initially in spaced relationship with a heat contact plate which is to be contacted by a heat source, which may be the end face of a piston either pre-heated to a given temperature or having a current heatable resistance thereon to be pulsed with current. In the former case the polymer end face preferably has a low heat conductivity coating thereon. The live skin tissue, like a finger, is pressed against the imaging layer coated side of the recording medium to bring the substrate side thereof against the heat contact plate which receives heat from the piston end face. The plunger is automatically withdrawn from the heat contact plate a short time after the recording medium is pressed against the heat contact plate to prevent any discomfort or burning of the finger.
摘要:
The imaging layer coated side of a heat-responsive recording medium is selectively heat-sinked by the raised portions of live skin tissue contacting the same so that only the unheat-sinked portions of the recording medium will reach an imaging temperature. The source of heat for the film may be a flash lamp directed against the opposite substrate side of the film where the electromagnetic energy thereof is converted into heat when absorbed by the substrate, or may be a source of externally applied heat transmitted through the substrate to the imaging layer of the film. In the latter case, the recording medium is preferably initially in spaced relationship with a heat contact plate which is to be contacted by a heat source, which may be the end face of a piston either pre-heated to a given temperature or having a current heatable resistance thereon to be pulsed with current. In the former case the plunger end face preferably has a low heat conductivity coating thereon. The live skin tissue, like a finger, is pressed against the imaging layer coated side of the recording medium to bring the substrate side thereof against the heat contact plate which receives heat from the piston end face. The plunger is automatically withdrawn from the heat contact plate a short time after the recording medium is pressed against the heat contact plate to prevent any discomfort or burning of the finger.
摘要:
Image scanning apparatus includes an array of thin film light sensitive elements and relies upon the concept of "proximity focusing" in order to generate electrical signals for replicating an image on an image-bearing member. Included herein is an abrasion-resistant, transparent coating overlying said light sensitive elements.
摘要:
Systems and methods for detecting and eliminating short circuit current paths through photovoltaic devices of the type including at least one semiconductor region overlying a substrate and a layer of conductive light transmissive material overlying the at least one semiconductor region are disclosed. The short circuit current paths which are eliminated extend through the at least one semiconductor region from the substrate to the layer of conductive light transmissive material. The resistivity of the short circuit current path is increased substantially at the interface between the conductive light transmissive material and the semiconductor region by isolating electrically the conductive light transmissive material from the short circuit current path.The isolation can be provided by removing the transparent conductive material from electrical contact or connection with the short circuit current path. The isolation also can be provided by depositing a body of insulating material onto the semiconductor region over an area including a short circuit current path prior to the deposition of the conductive light transmissive material. Further, the short circuit current path can be detected and located by applying a voltage to discrete areas of the device through a conductive solution which path then can be eliminated as described above.
摘要:
The formation of a body of material on a substrate having at least two layers of different composition is made possible by the improved system and method of the present invention with minimized cross contamination between the respective deposition environments in which the layers are deposited. The disclosure relates more specifically to the use of the system and method for the deposition of multi-layered amorphous silicon alloys to form photovoltaic devices. As a preferred embodiment of the invention, first, second, and third glow discharge deposition chambers are provided for depositing respective first, second, and third amorphous silicon alloy layers on a substrate. The second layer is substantially intrinsic in conductivity and differs in composition from the first and third layers which are of opposite conductivity type by the absence of at least one element. The second chamber is provided with starting materials including at least one gas from which the deposited layers are derived and the first and third chambers are provided with respective dopants to render the first and third layers opposite in conductivity. Contamination of the second chamber by the dopants in the first and third chambers is prevented by the establishment of unidirectional flow of the at least one gas from the second chamber to the first and third chambers.
摘要:
Improved method for the generation of and deposition of semiconductor alloys from a plasma are disclosed. The uniformity of deposited layers of amorphous semiconductor material is enhanced by maintaining the frequency of an ionizing a.c. field in the plasma region between the cathode of a glow discharge chamber and the active surface of a substrate at about 50 to 200 kiloHertz to allow the favorable deposition of material at relatively low power. Improved sample quality and deposition control (including uniformity) is realized at even high frequencies by the introduction of a quantity of inert gas into the chamber to alter the energy profile of the plasma.
摘要:
A copying system which includes the combination of a digitizing unit formed of an array of thin film photosensitive elements adapted to generate electrical signals indicative of a detectible image on an image-bearing surface and a replicating unit responsive to the photogenerated electrical signals for reproducing one or more hard copies of that detectible image.