| Patents for G01C 3 - Measuring distances in line of sight; Optical rangefinders (8,275) | 
|---|
| 02/16/1983 | EP0071667A1 Device for determining the real or the virtual distance of a source of light from a measuring plane | 
| 02/16/1983 | EP0071656A1 Method and apparatus for measuring distances or heights | 
| 02/15/1983 | US4373805 Laser altimeter and probe height sensor | 
| 02/15/1983 | US4373804 Method and apparatus for electro-optically determining the dimension, location and attitude of objects | 
| 02/01/1983 | US4371261 Range finder | 
| 01/25/1983 | US4370724 Circuit for the sensor controlled distance measurement | 
| 01/18/1983 | US4368978 Image scanning system | 
| 01/04/1983 | US4367534 Circuit for sensor-controlled telemetry | 
| 12/14/1982 | US4363962 Focussing apparatus with plural emitter-detector pairs | 
| 12/14/1982 | CA1137598A1 Device for contact-free thickness or interval measurement | 
| 11/16/1982 | US4359636 Detector balance apparatus and method employing selective masks | 
| 11/09/1982 | US4358674 Steered low cost auto focus system | 
| 11/09/1982 | US4358673 Steered sum low cost auto focus system | 
| 11/02/1982 | US4357085 Focus detection device | 
| 10/26/1982 | US4355904 Optical inspection device for measuring depthwise variations from a focal plane | 
| 10/06/1982 | EP0061937A1 Adjustable photoelectric detector head for solid state limit switch | 
| 10/05/1982 | US4352556 Reflector for electrooptical distance measurement | 
| 09/14/1982 | US4349274 Optical triangulation apparatus and method | 
| 08/31/1982 | US4346989 Surveying instrument | 
| 08/31/1982 | US4346988 Distance measuring device | 
| 08/24/1982 | US4346293 Optical electronic distance sensor with a parallel beam of light and adjustable detector-emitter separation | 
| 08/24/1982 | US4345827 Distance-measuring system with in-range signalling for use with cameras, alarms, and the like | 
| 08/11/1982 | EP0057259A1 Circuit for binary coding sensor signals from a number of optoelectronic sensor elements, and method for its operation | 
| 07/27/1982 | US4341447 Infrared camera ranging system | 
| 07/13/1982 | EP0047250A4 Dimension measuring apparatus. | 
| 07/06/1982 | US4338515 Analog-digital converter for the evaluation of the output signal of an optoelectronic sensor element | 
| 07/06/1982 | US4338012 Focusing screen | 
| 07/06/1982 | CA1126944A1 Photoelectric rangefinding system using charge transfer devices | 
| 06/15/1982 | US4335317 Circuit for sensor-controlled telemetry | 
| 06/15/1982 | US4335306 Surveying instrument | 
| 06/08/1982 | US4334151 Circuit provided with an exposure measuring part for sensor-controlled telemetry | 
| 06/08/1982 | US4334150 Circuit with an exposure measuring unit for sensor controlled range measurement | 
| 06/08/1982 | US4333716 Focus detection system | 
| 06/01/1982 | US4333106 Method of measuring firing misses and firing miss-measuring installation for the performance of the method | 
| 05/25/1982 | US4331975 Instrumentation for surveying underground cavities | 
| 05/25/1982 | US4331864 Apparatus for detecting an in-focused condition of optical systems | 
| 05/18/1982 | US4330202 Range detecting device | 
| 04/01/1982 | WO1982001075A1 Ocean depth sounding from the air by laser beam | 
| 03/23/1982 | US4321683 Measuring system for alignment and measurement with an electronic tachymeter | 
| 03/17/1982 | EP0047250A1 Dimension measuring apparatus. | 
| 03/16/1982 | US4320302 Method for the automatic or semiautomatic distance measurement and focusing of the image of an object onto a focal plane | 
| 03/02/1982 | US4317991 Digital auto focus system utilizing a photodetector array | 
| 03/02/1982 | CA1119035A1 Camera range determination system | 
| 02/23/1982 | US4316657 Apparatus for electrically detecting focal point of cameras or the like optical devices | 
| 02/16/1982 | US4315644 Multishell pipe bend | 
| 02/09/1982 | US4315159 Optical sensor device with reduction of ambient light effects | 
| 02/09/1982 | US4314760 Optical sensing device | 
| 02/02/1982 | US4314150 Apparatus for detecting the in-focusing conditions | 
| 01/05/1982 | US4309103 Device for contact-free thickness or interval measurement | 
| 12/15/1981 | US4305657 Range finding device | 
| 12/15/1981 | US4305209 Adaptor | 
| 12/08/1981 | US4304487 Range finder for still or moving picture cameras | 
| 12/01/1981 | US4303981 Distance measuring arrangement | 
| 12/01/1981 | US4303335 Automatic distance measuring device | 
| 11/25/1981 | EP0009496B1 Multiple wall angle connection | 
| 11/24/1981 | US4302084 Automatic rangefinding device for use in a camera | 
| 11/17/1981 | US4300824 Signal processing circuitry for a distance measuring system | 
| 11/03/1981 | US4298258 Distance measuring device | 
| 09/30/1981 | EP0036803A1 Apparatus for determining the position | 
| 09/29/1981 | US4292514 Apparatus for, and method for, achieving a temperature compensation of an avalanche photodiode | 
| 09/22/1981 | US4290693 Arrangement for measuring the range or speed of an object | 
| 09/17/1981 | WO1981002628A1 Dimension measuring apparatus | 
| 09/16/1981 | EP0035794A1 Opto-electronic distance measuring arrangement | 
| 09/01/1981 | EP0027822A4 Laser altimeter and probe height sensor. | 
| 08/25/1981 | CA1107860A1 Range detecting method and apparatus | 
| 08/18/1981 | US4284335 Focus detecting apparatus | 
| 08/11/1981 | US4283137 Image scanning system | 
| 08/04/1981 | US4282430 Reflection-type photoelectric switching apparatus | 
| 07/28/1981 | CA1106063A1 Distance determining and automatic focusing apparatus with false peak discrimination | 
| 07/21/1981 | US4279484 Apparatus for measuring a range to a subject | 
| 07/08/1981 | EP0031680A2 Focusing apparatus | 
| 06/23/1981 | US4274735 Distance measuring device | 
| 06/11/1981 | WO1981001610A1 Automatic range finder | 
| 06/09/1981 | US4271829 Endoscope with distance measuring device | 
| 06/09/1981 | CA1102595A1 Reflective lens system | 
| 06/02/1981 | CA1102428A1 Object position and surface determining methods and apparatus | 
| 05/26/1981 | US4269491 Distance information judging circuit for focus detecting apparatus | 
| 05/12/1981 | US4267440 Focus detecting system | 
| 05/06/1981 | EP0027822A1 Laser altimeter and probe height sensor | 
| 04/28/1981 | US4263719 Optical sighting devices | 
| 04/15/1981 | EP0026834A2 Analog-digital converter for the evaluation of the output signal of an optoelectronic sensor element, and method of operating it | 
| 03/31/1981 | US4259688 TV camera | 
| 03/31/1981 | US4259009 Far field target designators | 
| 03/24/1981 | US4257704 Distance measuring finder | 
| 03/18/1981 | EP0025175A2 Circuit for sensor controlled distance measurement provided with a light measuring means | 
| 03/18/1981 | EP0025174A2 Circuit for sensor controlled distance measurement | 
| 03/18/1981 | EP0025172A2 Circuit for sensor controlled distance measurement | 
| 03/18/1981 | EP0025171A2 Circuit for sensor controlled distance measurement provided with a light measuring means | 
| 03/18/1981 | EP0025170A2 Circuit for sensor controlled distance measurement | 
| 03/10/1981 | US4255654 Method of electrically detecting focal point of cameras or the like optical devices | 
| 02/03/1981 | US4249073 Method and apparatus for determining focus position | 
| 02/03/1981 | US4248532 Electro-optical distance-measuring system | 
| 02/03/1981 | US4248496 Riflescope with data display in field of view | 
| 01/27/1981 | US4247763 Grid scan range finding apparatus | 
| 01/27/1981 | US4247761 Arrangement for focusing the image of an object onto an image plane | 
| 01/27/1981 | US4247203 Automatic photomask inspection system and apparatus | 
| 01/20/1981 | US4246476 Automatic focusing apparatus for use with a plurality of lenses | 
| 01/07/1981 | EP0020879A1 Optical electronic distance sensor | 
| 12/23/1980 | US4240745 Imagery with constant range lines | 
| 11/13/1980 | WO1980002455A1 Laser altimeter and probe height sensor |