| Patents for G01C 3 - Measuring distances in line of sight; Optical rangefinders (8,275) |
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| 11/08/1989 | EP0340632A2 Position locating apparatus for an underwater moving body |
| 11/01/1989 | CN1005649B Laser distance measuring compass for forestry |
| 10/25/1989 | EP0338053A1 Focus detection system for use in optical measuring systems |
| 10/25/1989 | CN2046621U Constant length and angle distometer |
| 10/19/1989 | WO1989009922A1 Method and sensor for opto-electronic angle measurements |
| 10/17/1989 | US4874246 Arrangement for optically measuring a distance between a surface and a reference plane |
| 10/17/1989 | US4874239 Distance measuring device |
| 10/10/1989 | US4873449 Process and apparatus for three-dimensional surveying |
| 10/04/1989 | EP0335132A1 Optical proximity fuse |
| 09/20/1989 | EP0333493A2 Triangulation system |
| 09/20/1989 | EP0332781A2 Optical measuring device |
| 09/19/1989 | US4868666 Automatic focusing apparatus having an automatic offset voltage regulating device |
| 09/13/1989 | CN1035558A Laser ranging compass for forest |
| 09/12/1989 | US4865443 Optical inverse-square displacement sensor |
| 09/05/1989 | US4864395 Simplified calibration for a distance information obtaining device |
| 08/31/1989 | DE3805450A1 Arrangement and method for determining length of flight |
| 08/29/1989 | US4861131 Displacement transducer with staggered optical fibres |
| 08/15/1989 | US4856894 Distance measuring method and means |
| 08/09/1989 | EP0327072A2 Boresight alignment measuring apparatus and method for electro-optic systems |
| 07/25/1989 | US4850692 Semiconductor light position detector for rangefinder |
| 07/05/1989 | EP0322676A2 Process and device to regulate the emission intensity of light in an optical measuring probe |
| 06/29/1989 | DE3743194A1 Method and device for optical distance measurement |
| 06/28/1989 | EP0322356A2 Method and device for optically measuring distances |
| 06/27/1989 | US4843228 Method and apparatus for noncontact automatic focusing |
| 06/27/1989 | CA1256306A1 Illuminated prism construction for an optical sight |
| 06/20/1989 | US4841325 Automatic focusing device for camera |
| 06/14/1989 | CN1004515B Light sensor |
| 06/13/1989 | US4839685 Light receiving element for a rangefinder |
| 06/13/1989 | CA1255796A1 Z-axis measurement system |
| 05/31/1989 | EP0318188A2 Method and apparatus for determining the distances between surface-patches of a three-dimensional spatial scene and a camera system |
| 05/16/1989 | US4830498 Position detecting device |
| 05/09/1989 | US4828390 Optical axis displacement sensor |
| 05/05/1989 | WO1989004007A1 Focus detection system for use in optical measuring systems |
| 04/25/1989 | US4825239 Distance detection method and apparatus |
| 04/25/1989 | US4825091 Optoelectronic distance sensor with visible pilot beam |
| 04/25/1989 | CA1253251A1 Three-dimensional range camera |
| 04/18/1989 | US4822170 Sensor for the contactless linear measurement of the distance of a target by backscattered radiation |
| 03/29/1989 | EP0308466A1 Distance measuring device. |
| 03/29/1989 | EP0308403A1 Process for measuring the distance between a machine-tool and a workpiece |
| 03/28/1989 | US4816664 Focusing detector having a scanning grating used both as a beam splitter and spatial and frequency filter |
| 03/22/1989 | EP0307714A1 Light sensor switch |
| 03/15/1989 | EP0306485A1 Machine-tool, preferably drilling machine. |
| 02/21/1989 | US4806017 Apparatus for the contactless measurement of geometrical dimensions |
| 02/08/1989 | EP0302512A2 Simplified calibration for a distance information obtaining device |
| 02/07/1989 | US4802759 Three-dimensional shape measuring apparatus |
| 02/01/1989 | EP0301019A1 Method for the three-dimensional surveillance of the object space. |
| 01/25/1989 | EP0300934A1 Laser beam projector and distance measuring device with at least two of these projectors |
| 01/03/1989 | US4796044 Auto-focus camera |
| 12/06/1988 | CA1245889A1 Three dimensional imaging method and device |
| 11/29/1988 | US4787739 For determining distances to objects |
| 11/22/1988 | US4786815 Non-contact sensor with particular utility for measurement of road profile |
| 11/22/1988 | US4786167 For identifying/determining angular location of light beacons |
| 11/17/1988 | EP0291394A1 Displacement sensor with recessed optical fibres |
| 11/02/1988 | EP0289421A2 Non-contact sensing and controlling of spacing between a depositing tip and each selected depositing location on a substrate |
| 11/01/1988 | US4782224 Electrooptical presence recognition-sensor |
| 11/01/1988 | US4781454 Optical telemetry system incorporating a collimator |
| 10/12/1988 | CN87208981U Simplified piano |
| 10/11/1988 | US4777352 Microcontroller operated optical apparatus for surveying rangefinding and trajectory compensating functions |
| 10/06/1988 | WO1988007657A1 Distance measuring device |
| 09/21/1988 | EP0282549A1 Laser probe |
| 09/21/1988 | EP0282517A1 Apparatus for determining the real or virtual distance of a light source from a measurement plane. |
| 09/13/1988 | US4771182 Spurious electromagnetic energy discriminator for electro-optical inspection systems |
| 09/07/1988 | WO1988006715A1 Telemeter suitable for use with a gunsight or field glass or for obtaining a target |
| 09/07/1988 | EP0281085A2 Proximity sensing apparatus |
| 08/31/1988 | EP0280110A1 Sensor with an integrated signal processor for one-to-three-dimensional positioning |
| 08/30/1988 | US4768053 Distance measuring apparatus |
| 08/30/1988 | US4767934 Surface position sensor |
| 08/24/1988 | EP0279730A1 Method and device for tridimensional measurement |
| 08/24/1988 | EP0279347A2 Optical axis displacement sensor |
| 08/23/1988 | US4765742 Optical monitoring method and apparatus |
| 08/17/1988 | EP0278269A2 Non-contact sensor with particular utility for measurement of road profile |
| 08/10/1988 | EP0277542A1 Optoelectronic distance sensor |
| 08/10/1988 | EP0277492A1 Visual sensor system |
| 08/09/1988 | US4762578 Tip is advanced to preferred spacing without overshooting or contact |
| 08/02/1988 | US4761546 Optical displacement measuring system with nonlinearity correction |
| 08/02/1988 | US4761072 Electro-optical sensors for manual control |
| 07/28/1988 | WO1988005525A1 Range finding by diffraction |
| 07/26/1988 | US4760419 Distance measuring apparatus |
| 07/06/1988 | EP0273717A2 Method and apparatus for noncontact automatic focusing |
| 06/28/1988 | US4753528 Laser archery distance device |
| 06/23/1988 | DE3642196A1 Optoelectronic collision protection device for vehicles |
| 06/21/1988 | US4752799 Optical proximity sensing optics |
| 06/15/1988 | CN87213930U Photoelectric aiming eaves meassuring device |
| 06/07/1988 | US4749848 Apparatus for and method of measuring distances to objects present in a plurality of directions with plural two-dimensional detectors |
| 05/24/1988 | US4746790 Method and apparatus for measuring a distance |
| 05/17/1988 | CA1236904A1 Measuring system employing a measuring method based on the triangulation principle for the non-contact measurement of a distance from the surface of contoured object to a reference level |
| 05/10/1988 | US4743771 Z-axis height measurement system |
| 05/10/1988 | US4743770 Profile-measuring light probe using a change in reflection factor in the proximity of a critical angle of light |
| 04/27/1988 | EP0264734A2 Method and apparatus for contactless optical distance measurement, in particular by triangulation |
| 04/26/1988 | US4740806 Range finding device |
| 04/26/1988 | US4740676 Range finding automatic focusing system employing a rotatable transparent plate and a half-split light receiving element |
| 04/19/1988 | US4739161 Fine displacement transducer employing plural optical fibers |
| 04/14/1988 | DE3633681A1 Device for determining the distance between two bodies |
| 03/31/1988 | DE3704848A1 Modulares beobachtungsgeraet mit entfernungsmesser Modular beobachtungsgeraet with odometer |
| 03/29/1988 | US4734572 Dual light source locating and tracking system |
| 03/29/1988 | US4733969 Laser probe for determining distance |
| 03/24/1988 | WO1988002125A1 Modular observation device with rangefinder |
| 03/24/1988 | WO1988002099A1 Apparatus for determining the real or virtual distance of a light source from a measurement plane |
| 03/24/1988 | WO1988002098A1 Laser probe |
| 03/23/1988 | EP0260933A2 Fiber optic displacement measuring apparatus |