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| Number | Title | Issue Date |
| 7554650 | Laser beam projecting device A laser beam projecting device, comprising a laser light source for emitting a laser beam, a wavelength selecting film for allowing the laser beam from the laser light source to. pass, and a birefringent optical member arranged on an optical axis closer to an exit s... | 06/30/2009 |
| 7333182 | Range finder and method of reducing signal noise therefrom A range finder includes an optical sensor circuit including optical sensors and an integrator circuit disposed for the optical sensors. It further includes selection switches (MOSFETs), which selectively connect optical sensors to the integrator circuit, non-selecti... | 02/19/2008 |
| 7283213 | Method and system to correct motion blur and reduce signal transients in time-of-flight sensor systems TOF system shutter time needed to acquire image data in a time-of-flight (TOF) system that acquires consecutive images is reduced, thus decreasing the time in which relative motion can occur. In one embodiment, pixel detectors are clocked with multi-phase signals an... | 10/16/2007 |
| 7218384 | Surveying system A surveying system is provided that comprises a position relation calculating processor and a correspondence obtaining processor. The position relation calculating processor calculates a position relation between a coordinate system to which three-dimensional coordi... | 05/15/2007 |
| 7158296 | Vision system with eye dominance forced to fusion channel A fusion vision system has a first eyepiece through which a fused viewable image is larger than an image viewed through a second eyepiece to help the operator more easily view the fused image in their brain. The fusion vision system may employ image intensification ... | 01/02/2007 |
| 7154589 | Rangefinder apparatus In a rangefinder, if sensor data initially received by a sensor data storage part from an A/D converter includes data with low contrast, the sensor data storage part receives the sensor data at least one additional time, adds additionally received sensor data to the... | 12/26/2006 |
| 7086163 | Method and remote-controlled reflector device for layout axis lines during construction of a building in the absence of direct line of sight A method and remote-controlled reflector device for layout reference and axis lines is provided for use preferably in high building construction industry. The reflector device includes a mirror capable of rotating about its horizontal and vertical axes as controlled... | 08/08/2006 |
| 7042491 | Image signal output method, image signal output device, rangefinder, and imaging device An image signal output device for use in a passive range finder. The device can correct the sensitivities of sensor arrays according to the amount of incident light. The output device has line sensor portions that produce pixel outputs. An A/D converter portion A/D ... | 05/09/2006 |
| 6903811 | Rangefinder binoculars The range binoculars include first and second observing optical systems, a laser beam-emitter for emitting a laser beam, a measuring optical system for collimating the laser beam and sending the collimated laser beam to a target. A laser beam-receiving device receiv... | 06/07/2005 |
| 6768540 | Phase difference detection method, phase difference detection apparatus, range finding apparatus and imaging apparatus A phase difference detection apparatus for detecting a phase difference between images formed on a pair of optical sensor arrays in which the possibility of unproductive compensation is reduced by use of a compensation effectiveness judgment unit that judges whether... | 07/27/2004 |
| 6072564 | Optical module and apparatus having the same In a module which consists of optical systems and sensors, a pair of first line sensors are arranged vertically to a pair of second line sensors, and each of the line sensors is provided with a lens which projects an object image thereon. One of the first... | 06/06/2000 |
| 5532777 | Single lens apparatus for three-dimensional imaging having focus-related convergence compensation The invention comprises an adapter having a set of four mirrors in two pairs located in front of a camera lens. The outer two mirrors face generally outward along the optical axis of the lens and the inner two mirrors face generally inward into the lens. ... | 07/02/1996 |
| 5483336 | Self correcting stereoscopic auto-rangefinder A stereoscopic rangefinder is disclosed for determining the distance of a target object by measuring the angle of parallax of light scattered by the target. The rangefinder includes two arrays of photosensitive elements upon each of which a distinct targe... | 01/09/1996 |
| 5280332 | Method and apparatus for self-correcting, direct sensing coincidence sensor for optical rangefinders A device to precisely determine the angle of parallax formed by a target object of interest and first and second entrances (30, 30') for the purpose of rangefinding for example. The device having photodetectors (46) for sensing the separation of first and... | 01/18/1994 |
| 5233382 | Range finding device unaffected by environmental conditions A range finding device having a lens holder with two tunnels, and two lens plates mounted in front of the tunnels. Two pins are formed on the front surface of the lens holder, the two pins being positioned on vertical positioning lines externally of the v... | 08/03/1993 |
| 4989827 | Distance distribution measuring method and apparatus varying spacing between an image pickup and the optical axis A distance distribution measuring method includes the steps of disposing an image pickup on the optic axis of a projection optical system, forming on the image pickup the images of objects existing in multiple directions through the projection optical sys... | 02/05/1991 |
| 4868591 | Photodetector element for optical rangefinders A photodetector element for use in a rangefinder of a camera comprises a first photoelectric element having a plurality of light receiving segments parallel to each other and adapted to provide a photoelectric output, and a second photoelectric element ha... | 09/19/1989 |
| 4781454 | Optical telemetry system incorporating a collimator A telemetry system comprises a video camera of the kind such that, as a result of the substantial magnification provided, it is necessary also to use a collimating video camera. The use of the collimating camera is rendered possible by mirrors which enabl... | 11/01/1988 |
| 4746790 | Method and apparatus for measuring a distance There is disclosed a method for measuring the distance to an object, using an apparatus having two optical systems which have optical axes parallel with each other, and detecting means on which images are respectively formed by the two optical systems, co... | 05/24/1988 |
| 4717251 | Elevation measurement in high order surveying A surveying instrument and procedure are provided for the precise determination of elevation differences in the course of a surveying traverse. The instrument comprises an optical wedge 13 situated on the horizontal longitudinal line of sight axis 27 of t... | 01/05/1988 |
| 4652119 | Range finder A range finder wherein the quantization of analog outputs from light receptor elements for converting an optical image into an electrical signal is accomplished by comparing the outputs from at least two of the light receptor elements in each group, by di... | 03/24/1987 |
| 4640613 | Image data comparison circuit for rangefinders In the particular embodiments of the invention disclosed herein, an image data comparison circuit receives digital image signal trains from two light sensor arrays of a rangefinder and compares the signals in the signal trains while they are being shifted... | 02/03/1987 |
| 4465366 | Device for the photoelectric determination of the position of at least one focal plane of an image Disclosed is a device for the photoelectric determination of the position of a focal plane of an image with an optical correlator. The invention comprises an imaging system, a grating structure located in the focal plane of the imaging system to function ... | 08/14/1984 |
| 4441810 | Range finder A range finder for measuring the distance of an object to be measured by the steps of radiating the spot light to the object, forming an image of the reflected ray of light by image forming means and measuring the distance of the object from the output of... | 04/10/1984 |
| 4413906 | Passive optical rangefinder/sextant having search capability Uniquely integrating a search mirror and a deflection mirror with a passive ptical rangefinder and a remote sextant, enhances the operation of both devices. The improved rangefinder/sextant provides day/night 360° azimuthal and at least -5° to about 60°... | 11/08/1983 |
| 4408288 | Distance measuring arrangement A distance measuring arrangement for use, for example, in a camera and the like equipped with an automatic focus control system which includes an illuminance intensity detecting portion for detecting the illuminance intensity of a target object and a dist... | 10/04/1983 |
| 4391513 | Range finding optical mechanism A device wherein object images are formed on photoelectric converter means arranged in the form of a row by a pair of imaging optical systems fixedly disposed with a base line length therebetween and the spacing between the two images is electrically dete... | 07/05/1983 |
| 4341447 | Infrared camera ranging system A passive infra-red ranging system for a photographic camera or the like includes two infra-red responsive sensors spaced apart a predetermined distance from one another on the camera body. Each sensor includes a plurality of vertically aligned segments w... | 07/27/1982 |
| 4305657 | Range finding device This invention presents a range finding device when 1st and 2nd detection images of an object are scanned by signal storing type image sensing means to obtain image scan signals, which are quantized by quantization means to produce quantized image data fo... | 12/15/1981 |
| 4304474 | Arrangement for focusing the image of an object onto an image plane The invention relates to an arrangement for automatically focusing the image of an object, obtained by an objective lens system, onto an image plane by adjustment of the distance of the objective lens system or a portion thereof from such image plane. Two... | 12/08/1981 |
| 4303981 | Distance measuring arrangement A distance measuring arrangement for use, for example, in a camera and the like equipped with an automatic focus control system which includes an illuminance intensity detecting portion for detecting the illuminance intensity of a target object and a dist... | 12/01/1981 |
| 4290693 | Arrangement for measuring the range or speed of an object The invention relates to an arrangement for measuring the range or speed of an object, in which two optical devices are offset from one another transversely to the direction of the object to produce auxiliary images of such an object, which are photoelect... | 09/22/1981 |
| 4257705 | Device for focus detection or distance detection This invention relates to a device for focus detection or distance detection in which one or more images of a target formed by an optical system are received by photoelectric light receiving means to obtain a photoelectric output regarding the imaging con... | 03/24/1981 |
| 4240727 | Focussing system A first photodetector arrangement comprises three adjoining photodetectors, and a second comprises six. First and second optics, and the two photodetector arrangements, are located immovable on the camera, and the optics project onto the first arrangement... | 12/23/1980 |
| 4189232 | Range detecting method and apparatus A range detecting method and apparatus of a construction, in which first and second images of an object to be formed by a range finding optical system with a relative positional parallax corresponding to the object distance are scanned purely electrically... | 02/19/1980 |
| 4184968 | Auto focus system An auto focus system includes first and second detector arrays which receive first and second detection images of an object. The detection images are displaced from each other by a distance which depends upon the distance to a remote object. The detector ... | 01/22/1980 |
| 4178098 | Range detecting method and apparatus A range detecting method and apparatus in which a first and a second image of an object each having a relative positional parallax corresponding to the object distance formed by a range finding optical system are purely electrically scanned by the use of ... | 12/11/1979 |
| 4175365 | Method and apparatus for measuring distances A method and apparatus for the automatic evaluation of stereoscopic images by the determination of the maximum degree of correlation of identical images of an object reproduced by two objectives, for example for a range finder, wherein the two images are ... | 11/27/1979 |
| 4173402 | Optoelectronic sensing apparatus First and second optical systems each comprise identical converging lenses which focus light images of an object onto identical photosensor arrays, the lenses being parallel. First and second mirrors reflect the light images from the respective lenses ont... | 11/06/1979 |
| 4162124 | Passive optical rangefinder-sextant A passive opto-electric rangefinder with remotely controllable index mirr independently rotatable about normal axes, each axis perpendicular to the line-of-sight.... | 07/24/1979 |
