Abstract:
The invention relates to the making of reproductions of microfilm images which are scanned line-by-line using photoelectronic devices. The subsequent generation of images are reproduced onto photosensitive material line-by-line. By processing the video signal generated by scanning the first or original image, a series of parameters are produced which are stored either on the film or in a separate location. The second generation image is electronically scanned and the video signal processed to provide a second series of parameters. The first and second series of parameters are compared to provide an adjustment signal. The adjustment signal is then used to change or alter the second video signal prior to it being used to electronically reproduce the second generation image on film. The stored series of video parameters are used to produce subsequent generations of film images in a like manner.
Abstract:
Two microfiches carrying information recorded in different colors which can be detected independently of each other by means of color separation optical system are superposed in the direction of the optical axis of a projection optical system. The two kinds of information recorded in different colors on the two microfiches are separately displayed on a single or two display devices through color separation optical system such as color filters or a dichroic filter. When the two kinds of information are displayed on a single display device, the information is changed over by changing over the color separation system. When the two kinds of information are displayed on two display devices, they are displayed simultaneously.
Abstract:
An image transmission system is disclosed in which the image is obtained from a reduced size medium such as microfilm. A scanning beam is incident upon a first reflector which causes the beam to be redirected onto a second reflector fixedly spaced therefrom. The second reflector in turn redirects the scanning beam onto the film. By moving the two reflectors with respect to the source of the scanning beam by a relatively large distance, the scanning beam is moved by a much smaller distance over the plane of the film, to permit scanning over a new line on the film.
Abstract:
A microform imaging apparatus comprising a chassis including a microform media support structure configured to support a microform media within a plane substantially orthogonal to a first optical axis, a fold mirror supported along the first optical axis to reflect light along a second optical axis that is angled with respect to the first optical axis, a lens supported along one of the first and second optical axis, an area sensor supported along the second optical axis, a first adjuster for moving the area sensor along at least a portion of the second optical axis and a second adjuster for moving the lens along at least a portion of the one of the first and second optical axis.
Abstract:
A microform imaging apparatus comprising a chassis including a microform media support structure configured to support a microform media within a plane substantially orthogonal to a first optical axis, a fold mirror supported along the first optical axis to reflect light along a second optical axis that is angled with respect to the first optical axis, a lens supported along one of the first and second optical axis, an area sensor supported along the second optical axis, a first adjuster for moving the area sensor along at least a portion of the second optical axis and a second adjuster for moving the lens along at least a portion of the one of the first and second optical axis.
Abstract:
The invention pertains to a method for reading analog and/or digital data stored on a microform in fields by means of a device for accessing the microform, which is connected to a data processing system by a hardware interface. The invention also pertains to a device for implementing the method and to a microform. So that the data acquired by the device can be subjected to further processing in a conventional personal computer, it is proposed according to the invention that the analog and/or digital data stored on the microform be presented to the data processing system by a control unit of the device as if the microform were a conventional removable data storage medium. Finally, an advantageous microform is described, the data on which can be read out quickly and which, because of its design, is suitable for the long-term, safe archiving of data, especially digital data.
Abstract:
A method, system, and apparatus for the shifting of a scanning device's focal point is described herein. The method, system, and apparatus comprise a focal point shifter interposed between a scanner surface and a target surface of a medium.
Abstract:
This invention has as its object to obtain a high-quality read image from which dust or scratches have been removed by an image reading apparatus which reads image information on a transparent original by synchronously scanning a light source unit and image reading unit. To this end, upon reading a transparent original, infrared LED chips on a dust/scratch detection LED substrate and a transparent original illumination lamp are turned on to make alignment between the LED substrate and the image reading unit, and dust/scratch detection image information is obtained by synchronously moving the light source unit and image reading unit in the subscanning direction. Subsequently, alignment between the transparent original illumination lamp and image reading unit is made, and image information of the transparent original is obtained by synchronously moving the light source unit and image reading unit in the subscanning direction.
Abstract:
Apparatus and method of processing microfiche images. The apparatus includes an unattended low-resolution wide area pre scanning station and an unattended high-resolution line scanning station. The low-resolution station automatically identifies active image areas and borders on a plurality of light passing documents transported in seriatim along a prescan path. The unattended low resolution scanning station generates a plurality of active image area signals indicative of the active image areas and borders in a plurality of light passing documents. The unattended high-resolution line scanning station includes a high-resolution line scanner that responds to the individual ones of said plurality of active image area signals. The high resolution scanning station automatically focuses the high resolution line scanner on only the active image areas of said light passing documents and then converts each scanned document image into a corresponding enhanced digital information signal that is indicative of the image information carried on the scanned document.
Abstract:
A method and apparatus for providing localized control of film, allowing high speed and high resolution continuous digital scanning of the film. The method includes continuously and precisely transporting the film, capturing successive slit images, and storing the images. The apparatus includes the use of a drive system to control the transport of the media being scanned. In a preferred embodiment, a dual capstan drive system under the control of a single motor provides localized tension and location control for the continuous transport of the film to be scanned, the capstans comprising a metal shaft. The preferred embodiment further comprises pinch rollers immediately adjacent to the capstans, the pinch rollers comprising a metal shaft covered with an elastomeric material. As a result of the accurate localized control of the film, high speed scanning is possible.