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| Number | Title | Issue Date |
| 8102516 | Test method for compound-eye distance measuring apparatus, test apparatus, and chart used for the same Provided is a test method for accurately testing all regions within a field of view and evaluating, by one-time capturing, accuracy of a distance measured by a compound-eye distance measuring apparatus having two baseline directions. The test method includes: placin... | 01/24/2012 |
| 7414707 | Rangefinder and method for collecting calibration data An apparatus and method for calibrating range measurements are provided wherein calibration data is collected with each range measurement or group of range measurements. The calibration data comprise a plurality of simulated range measurements. In one embodiment, th... | 08/19/2008 |
| 7242460 | Method and apparatus for automatic registration and visualization of occluded targets using ladar data A method and apparatus for high-resolution 3D imaging ladar system which can penetrate foliage and camouflage to sample fragments of concealed surfaces of interest is disclosed. Samples collected while the ladar moves can be integrated into a coherent object shape. ... | 07/10/2007 |
| 7127348 | Vehicle based data collection and processing system A vehicle based data collection and processing system which may be used to collect various types of data from an aircraft in flight or from other moving vehicles, such as an automobile, a satellite, a train, etc. In various embodiments the system may include: comput... | 10/24/2006 |
| 7053992 | Rangefinder and method for collecting calibration data An apparatus and method for calibrating range measurements are provided wherein calibration data is collected with each range measurement or group of range measurements. The calibration data comprise a plurality of simulated range measurements. In one embodiment, th... | 05/30/2006 |
| 7046841 | Method and system for direct classification from three dimensional digital imaging An automated system and/or method is disclosed for rapidly, accurately, and efficiently processing bulk three-dimensional digital image data of both path/corridor and area scenes to discriminate different structures or classifications of objects from within the imag... | 05/16/2006 |
| 7042555 | Portable pipe tally system A portable laser system includes a laser unit and a target unit for measuring the length of a series of pipe assemblies. Either the laser unit or the target unit engages a threaded coupling at one end of the pipe assembly and the other unit engages external pipe thr... | 05/09/2006 |
| 6904160 | Method for matching geographic information with recorded images A method for matching a recorded image with geographic data substantially corresponding to a geographic location where the image was recorded, is disclosed. In a preferred embodiment, global positioning system data logs are time matched with other data collected, in... | 06/07/2005 |
| 6087719 | Chip for multi-chip semiconductor device and method of manufacturing the same A plurality of chips each having two or more alignment holes for transmitting a laser beam are stacked. The laser beam is irradiated onto the uppermost or lowermost one of the stacked chips. A photodetector detects the laser beam output from the stacked c... | 07/11/2000 |
| 5991015 | Beam monitoring assembly A beam monitoring assembly (10) that provides near-field imaging, far-field imaging and power measurements of a laser beam (12) in real-time for alignment and performance verification purposes. The monitoring assembly (10) includes a holographic beam spli... | 11/23/1999 |
| 5930734 | Method and apparatus for measuring the thickness of non-circular elongated workpieces The invention relates to a method for measuring the thickness of non-circular elongated workpieces in which the thickness of the workpiece is measured along three measuring axis, the measurements are fed into a computer to determine minimum and maximum va... | 07/27/1999 |
| 5872626 | Consolidated laser alignment and test station A consolidated laser alignment and test station. In exemplary embodiments, equipment sufficient to perform complete dynamic testing and alignment of a laser transceiver unit is provided in one compact arrangement. As a result, cavity-box efficiency testin... | 02/16/1999 |
| 5638163 | Low cost laser range finder system architecture A laser range finder including a receiver for detecting a return pulse and providing an output signal indicative thereof, a single integrated circuit digital range counter chip connected to receive the output signal from the receiver, a power supply unit ... | 06/10/1997 |
| 5515156 | Electromagentic wave generating device and a distance measuring device A safety distance measuring device employing an electromagnetic wave is provided. A laser diode 2 is energized to emit laser beams by a laser diode drive circuit 3 in accordance with a clock signal generated by a control circuit 29. The emitted laser beam... | 05/07/1996 |
| 5281813 | Laser rangefinder test system An inexpensive, broadband technique for testing laser rangefinder systems. The invention includes a mechanism (18) for detecting an emission of a pulse of electromagnetic energy by a laser rangefinder under test (12) and providing a first signal in respon... | 01/25/1994 |
| 5264905 | Electro-optic automated test equipment Primary and secondary mirrors constitute a collimator which permit measurements to be made within a reasonably sized equipment enclosure. An incoming laser beam, from a unit undergoing test, has its light dispersed by an integrating sphere from which radi... | 11/23/1993 |
| 4627723 | Optical range simulator devices An optical range simulator device (10) for testing the ranging function of a laser rangefinder (14) receives output pulses from the rangefinder (14) and delivers these to an optical fibre delay line (11,12). The output of the delay line (11,12) and the in... | 12/09/1986 |
| 4552455 | Method and apparatus for functionally testing a laser rangefinder A laser rangefinder, where the laser is of the passive Q-switched type, is functionally tested. In a method and apparatus for functionally testing the laser rangefinder, the excitation voltage for actuating the laser is raised above the normal voltage, so... | 11/12/1985 |
| 4552454 | System and method for detecting a plurality of targets A test system (10) for a laser rangefinder (12, 14) having signal transmission and reception paths comprises a thick lens collimator (20) which receives energy (18) from a transmitter (12) for input through an optical fiber (32). The fiber has a partial r... | 11/12/1985 |
| 4430695 | Visual landing aids for aircraft Apparatus for aligning an aircraft landing aid projector of the type which comprises a light source located at the focus of a parabolic reflector, a lens mounted coaxially with the parabolic reflector and a filter disposed intermediate the reflector and l... | 02/07/1984 |
| 4121890 | Laser rangefinder tester A thick lens or prism with at least one spherical shaped surface is utilized in conjunction with a glass fiber delay line to create a sensitivity, boresight and range accuracy test unit for a laser rangefinder, which test unit may be built into the laser ... | 10/24/1978 |
| 3932745 | Far field construction for optical fourier transforms An optical reflective device for reflecting electromagnetic energy such as aser energy into a two-way spatial transform apparatus and onto a target for reflecting the energy back to the transform apparatus and onto a detector in an off-set input transform ... | 01/13/1976 |
