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| Number | Title | Issue Date |
| 7414794 | Optical arrangement of autofocus elements for use with immersion lithography An autofocus unit is provided to an immersion lithography apparatus in which a fluid is disposed over a target surface of a workpiece and an image pattern is projected onto this target surface through the fluid. The autofocus unit has an optical element such as a pr... | 08/19/2008 |
| 7301579 | Imaging apparatus An AF controlling unit (83) starts an outside light AF operation controlled by an outside AF unit (81) by a half-pressing of a shutter release button (61), and a change over between the outside AF operation and a CCDAF operation controlled by a ... | 11/27/2007 |
| 7221790 | Processing for accurate reproduction of symbols and other high-frequency areas in a color image In an image processing apparatus, color image data is binarized, and a symbol area in the color image data is detected. There are obtained, from N colors that form a symbol in the symbol area, M colors that are equal to or smaller than N in number. A symbol cutting ... | 05/22/2007 |
| 7212358 | Digital camera system with piezoelectric actuators A digital camera is constructed with multiple lenses mounted in a pair of tubular elements which are nested together for relative axial movement. Movement is provided by piezoelectric actuators mounted externally to a support tube on flexible printed circuit board e... | 05/01/2007 |
| 7068349 | Method of and preventing focal plane anomalies in the focal plane of a projection system To reduce and prevent local field anomalies created localized thinning of the coating of optical elements in the apparatus. The projection system is flood exposed to an intense beam of radiation for a substantial period of time. As the rate of thinning of the coatin... | 06/27/2006 |
| 6999619 | Processing for accurate reproduction of symbols and other high-frequency areas in a color image In image processing for accurate reproduction of the color of a high-frequency area, a histogram is calculated that is consonant with an input image, and, based on the histogram, there is calculated a binary threshold value with which a predetermined area in the inp... | 02/14/2006 |
| 6936989 | Pulse count motor control device A pulse count motor control device that connects to a central control unit through a first interface and to at least one motor through a second interface. A microprocessor integrated into the motor control device then allows it to directly monitor and drive the moto... | 08/30/2005 |
| 6917757 | Image-capturing device with synchronous and automatic focusing function An image capturing apparatus includes a lens for capturing an image of an object, focusing module for focusing the lens, and a focus-decisive module including at least one slide rod for measuring a distance between the lens and the object and for controlling the foc... | 07/12/2005 |
| 6822688 | Movable-lens position control apparatus An optical apparatus having an image-forming optical system comprising a movable lens, comprises a lens drive mechanism for moving the movable lens, a focus adjusting device for automatically adjusting an imaging position by moving the movable lens or another optica... | 11/23/2004 |
| 6795165 | Focus inspection device and focusing method A photographic lens and test chart provide for a method of inspecting and adjusting the focus of the lens. The test chart is obliquely inclined relative to a plane perpendicular to the viewing axis of the photographic lens. Test photographs are taken of the test cha... | 09/21/2004 |
| 6545743 | Producing an image of a portion of a photographic image onto a receiver using a digital image of the photographic image A method of producing an image of least a portion of a photographic image onto a photographic receiver including receiving a digital image corresponding to the photographic image, the digital image comprising pixels, and locating the relative optical posi... | 04/08/2003 |
| 6522391 | Image reading apparatus An image reading apparatus includes a diffusion box unit comprising a plurality of diffusion boxes, which each correspond to different sizes of photographic films, and controls the unit in such a manner that the diffusion box, which corresponds to the siz... | 02/18/2003 |
| 6333778 | Image reading apparatus An image reading apparatus includes a diffusion box unit comprising a plurality of diffusion boxes, which each correspond to different sizes of photographic films, and controls the unit in such a manner that the diffusion box, which corresponds to the siz... | 12/25/2001 |
| 6163369 | Plane position detecting method and exposing method and exposure apparatus using same The position or the inclination of a substrate surface is detected at a high accuracy and a high speed, and corrected. When moving the substrate in a direction substantially at right angles to an optical axis of a projection optical system and feeding an ... | 12/19/2000 |
| 6141134 | Multiple-resolution optical device A multiple-resolution optical device used to scan objects of variable sizes in various resolutions and forming corresponding images onto an image sensor is disclosed. The multiple-resolution optical device according to the present invention comprises a li... | 10/31/2000 |
| 5995201 | Digital print method When no trimming is executed, the optical magnification is fixed and the electronic magnification is changed each time a print size changes in a film original having the same film size, even if recorded images have a different size. Further, the fixed opt... | 11/30/1999 |
| 5875022 | Film image detection device and method There is provided a film image detection method, comprising the steps of measuring densities at a large number of measurement points arranged along a first direction and a second direction crossing the first direction in a measurement area including an im... | 02/23/1999 |
| 5841521 | Method and apparatus for obtaining a lithographic plate An apparatus for making a lithographic printing plate according to the silver salt diffusion transfer process image-wise exposes an imaging element with a high intensity short time scanning exposure. The imaging element comprises on a support in the order... | 11/24/1998 |
| 5703676 | Zoom lens system for a photographic copier A zoom objective for a photographic printer has a housing which accommodates two groups of lenses. One group is fixed and the other group is shiftable along the optical axis of the objective to change the magnification. The housing is externally threaded ... | 12/30/1997 |
| 5673101 | Method of repetitively imaging a mask pattern on a substrate, and apparatus for performing the method A method and apparatus for repetitively imaging a mask pattern (C) on a substrate (W) are described. Various parameters of the apparatus and the projection lens system (PL) can be measured accurately and reliably and measuring devices of the apparatus can... | 09/30/1997 |
| 5670855 | Motor control device A motor control device for controlling a plurality of stepping motors, e.g., to move optical scanning units in an electrophotographic copying apparatus has a pulse generator, a pulse counter for counting the number of pulses generated by the pulse generat... | 09/23/1997 |
| 5659384 | Position detection apparatus and method Apparatus and method for detecting a position of a flat object includes structure and process steps for providing marks having at least one of (i) projections and (ii) recesses on a surface of a flat object. Structure and steps are provided for detecting ... | 08/19/1997 |
| 5543833 | Scanner focussing method and apparatus concurrently displaying multiple partial scans with different focus settings An image input apparatus, or "scanner," capable of adjusting the focal point of an image-forming optical system and pre-scanning the same portion of an original document for various focal points of the image-forming optical system. The various pre-scan im... | 08/06/1996 |
| 5367406 | Optical device with inherent focusing error correction In an imaging apparatus, provided is an optical device which is capable of changing the magnifying power thereof. The optical device includes a zoom lens system having a power varying lens group and a correction lens group both of which are movable in the... | 11/22/1994 |
| 5274419 | Camera and photosensitive material feed unit useful therefor A reproduction magnification of an image to be reproduced is inputted through a inputting device. A projection optical system is adjusted according to the reproduction magnification, and then projects image light reflected from an original in the form of ... | 12/28/1993 |
| 5204707 | Multiple mode prints from tele/pan camera Multiple mode "tele," "pan" and "normal" prints are produced automatically using a tele/pan camera. With the camera set to a single frame - multiple mode option, a single exposed frame is encoded with a composite fiducial representing all of the chosen mo... | 04/20/1993 |
| 5195148 | Image reader having electrical and optical means for varying magnification This invention for reading an image of a document employs a optical projection magnification lens for projecting the image of a document; a movable image reading device for transforming the projected image into electrical signals and for providing a focus... | 03/16/1993 |
| 5168305 | Optical system control mechanism A control mechanism for an optical system wherein a scanning operation by an optical system is controlled by the amount and the direction of an electric current supplied to an optical system drive motor; and wherein a current limiter value modifying means... | 12/01/1992 |
| 5157515 | Image reading apparatus using a plurality of phase excitation modes An image reading apparatus includes a reading unit for reading the image and a stepping motor for moving the reading unit. The stepping motor is excited and driven in one of a plurality of phase excitation modes each causing a different amount of movement... | 10/20/1992 |
| 5138400 | Image forming apparatus An image forming apparatus including a copy image forming section for forming a copy image on the basis of an original image under each of a plurality of image forming conditions including a plurality of magnification ratios, a first key for inputing the ... | 08/11/1992 |
| 5124738 | Apparatus for correcting focal point according to lens temperature An apparatus for correcting a focal point according to a lens temperature includes an operation unit, to which data concerning a distance between a focusing lens and an object, data concerning a distance of the focusing lens and a focusing screen, and dat... | 06/23/1992 |
| 5124744 | Original scanning apparatus and image forming apparatus An image forming apparatus employs a control means for controlling a driving means such that the current supplied to the driving means is varied between the interval from the end of the acceleration of a scanning means in the advancing direction to the st... | 06/23/1992 |
| 5113218 | Electrophotographic machine with control means responsive to set magnification ratio and focal length Disclosed is a copying machine employing a uni-focus projection lens in which the lens and a mirror for changing the conjugates length are driven to move independently according to a set magnification ratio and the focal length of the lens. Either the len... | 05/12/1992 |
| 5049923 | Microfilm reader/printer Disclosed is a microfilm reader/printer which projects a microfilm image onto a screen and which makes a copy in an enlarged or reduced state of the image suitable to a selected copying paper size. On the screen there are provided marks which indicate ima... | 09/17/1991 |
| 5048106 | Image reader An image reader having a scanning optical means for a document, a projection lens and an image sensor for reading an image of a document is disclosed. The image reader includes a pattern element on which a predetermined pattern having two edges symmetric ... | 09/10/1991 |
| 5038168 | Photographic printing apparatus The invention provides an apparatus for printing an image of a negative film on a photographic print paper. The apparatus is equipped with a zoom lens for changing a printing magnification rate and the zoom lens incorporates an adjustable diaphragm for ch... | 08/06/1991 |
| 5028951 | Copying apparatus A copying apparatus includes an automatic document feeding unit for sequentially circulating and feeding documents to be copied, an image forming unit for forming images on the documents on both surfaces of each copying paper sheet by an electrophotograph... | 07/02/1991 |
| 5023657 | Micro-image handling apparatus with automatic focusing function A microreader-printer having an automatic focusing function. According to this reader-printer, an autofocusing operation is discontinued in response to a frame search command, removal of a projecting lens from an optical path and removal of a microfilm ca... | 06/11/1991 |
| 4998135 | Mechanism for moving a projection lens assembly to alter projecting magnification A mechanism for curvedly moving a projection lens assembly accommodated in a lens barrel to alter projecting magnification of a projecting optical system is comprised of a support member for supporting a lens barrel accommodating a projection lens assembl... | 03/05/1991 |
| 4996559 | Optical system supporting mechanism for an image processing equipment The present invention relates to an optical system supporting mechanism of an image processing equipment featuring that at least two first guide members which move along a guide shaft and second guide members which are respectively placed corresponding to... | 02/26/1991 |
