| Patents for G01V 8 - Prospecting or detecting by optical means (8,157) |
|---|
| 10/26/1993 | US5255916 Optical ball sensor |
| 10/19/1993 | US5254855 Device for contactless detection of glass sheets in movement with isothermal light path environment |
| 10/13/1993 | EP0564641A1 Photoelectric switch |
| 10/05/1993 | CA1322670C Photoelectric detector |
| 09/29/1993 | EP0562726A1 Segmented light curtain system and method |
| 09/29/1993 | EP0562424A1 Embedded optical calibration system |
| 09/29/1993 | EP0562275A1 Rain sensor |
| 09/26/1993 | WO1993019426A1 Method of detecting and mapping minerals and other geological phenomena utilizing airborne imaging spectrometers |
| 09/26/1993 | CA2101519A1 Method of detecting and mapping minerals and other geological phenomena utilizing airborne imaging spectrometers |
| 09/22/1993 | EP0561071A2 Person and object recognition system |
| 09/22/1993 | EP0345361B1 Infrared detector |
| 09/15/1993 | EP0560459A1 Device for detecting the position of a movably body |
| 09/14/1993 | US5245199 Mark detecting apparatus using active threshold comparison |
| 09/14/1993 | US5245178 Apparatus for automatically testing safety light curtain and measuring machine stoppage time |
| 09/14/1993 | US5245177 Electro-optical system for detecting the presence of an object within a predetermined detection system |
| 09/09/1993 | DE4207332A1 Contactless, optical detector for monitoring wooden plank using CCD matrix camera - has lenses aligned such that Y coordinate with less reduced lateral amplification lies parallel to width of object and X coordinate lies parallel to length of object |
| 09/07/1993 | US5243183 Obstruction position detecting system with comparison and memory means |
| 09/01/1993 | EP0558368A1 Detection of the presence of an object on a receiving surface of a conveyor |
| 09/01/1993 | EP0557589A1 Light beam detector for door openers using fiber optics |
| 08/25/1993 | EP0556519A1 Roller breakage detector for roller hearth kilns |
| 08/24/1993 | US5239182 Wafer conveyor apparatus and method for detecting inclination of wafer inside cassette |
| 08/19/1993 | DE4221726C1 Reflection light barrier using polarised light beam - has polarising beam splitter between single transmission and reception lens and light source and photodetector |
| 08/17/1993 | US5237126 Pick-up apparatus |
| 08/12/1993 | DE4203452A1 Radar, microwave and optical measurement pollution in river, stream or canal - using existing structures, e.g. bridges, for mounting sensor, i.e. radar appts., with output fed to local processing unit |
| 08/05/1993 | WO1993015483A1 Protective device for monitoring and securing access areas in stores |
| 08/03/1993 | US5233185 Light beam detector for door openers using fiber optics |
| 08/03/1993 | US5232212 Sheet sensor in sheet film transport apparatus |
| 08/03/1993 | US5231770 Treating device having an open design for human hair of the head |
| 07/29/1993 | DE4202057A1 Schutzvorrichtung zum ueberwachen und absichern von zugangsbereichen in lagerraeumen Protection device for supervise and secure from access areas in lagerraeumen |
| 07/27/1993 | US5231283 Opto-electronic sensing method and device for an acoustic piano |
| 07/22/1993 | WO1993014421A1 Opto-electric system for sensing string vibration |
| 07/22/1993 | DE4201116A1 Ascent monitoring for mines and shafts - involves monitoring roller system with drive chain of tubes by internal optical monitoring of tubes |
| 07/13/1993 | US5227800 Contraband detection system |
| 07/08/1993 | WO1993013505A1 Security device and method of operating the device |
| 07/08/1993 | WO1993013468A1 Device for monitoring a lock |
| 07/06/1993 | US5225688 Original and original size detecting device |
| 07/06/1993 | US5225669 Sensor system with adjustment for ambient conditions |
| 07/01/1993 | DE4228112C1 Object detection arrangement - contains light source and receiver, comparator with comparison voltages controlled by micro-controller |
| 07/01/1993 | DE4142529A1 Sicherungsverfahren und -einrichtung Assurance procedures and Equipment |
| 06/30/1993 | EP0548829A1 Process for determining the occupation state of a path that can be crossed by any kind of object |
| 06/29/1993 | CA1319527C Bore hole scanner with position detecting device and light polarizers |
| 06/17/1993 | DE4141469A1 Operating optical sensor for detecting objects - using periodically transmitting light source and receiver, evaluation unit extracting useful signal from measurement signal using noise signal measurements |
| 06/17/1993 | DE4141468A1 Operating optical sensor for detecting objects - transmitting light signal composed of pulses of set frequency to detector, for determining presence of object in monitored area |
| 06/15/1993 | US5220409 Light beam detection utilizing hologram |
| 06/15/1993 | US5220179 Method of and apparatus for detecting the presence of vapor and/or smoke in the outgoing air of a device for heating materials |
| 06/15/1993 | US5220177 Method and apparatus for edge detection and location |
| 06/09/1993 | DE4140138A1 Waffle iron monitor - has pyrometers for each plate to register heat emission and determine that a baked waffle has been removed |
| 06/08/1993 | US5218387 Eye position detecting apparatus |
| 06/08/1993 | US5218196 Light curtain system with system and watchdog microcontrollers |
| 05/27/1993 | DE4139222A1 Detection unit for objects of all kinds using light sources and receivers - produces common output signal from receiver signals connected to inputs of three comparators and switching points arranged in specific relationship |
| 05/25/1993 | US5214293 Latch status sensor sensing closed and unlatched position |
| 05/11/1993 | US5210406 Presence detector housing and mount |
| 05/05/1993 | EP0540395A2 Passive artillary fire or analogue detector |
| 05/05/1993 | EP0539653A2 Detecting method of small objects in a natural environment |
| 05/04/1993 | US5208465 Automatic detection system of oil spillage into sea waters |
| 04/29/1993 | WO1993008487A1 Photoelectric switch |
| 04/28/1993 | EP0539150A2 Infrared detector |
| 04/27/1993 | US5206627 Substrate detecting system with edge detection, such as wafer or base material of semiconductor device or LCD |
| 04/21/1993 | EP0537471A1 Procedure for adapting the sensitivity of a rain sensor to ambient conditions and sensor system with a rain sensor |
| 04/14/1993 | EP0277964B1 Optical scanner including position sensors |
| 04/13/1993 | US5202692 Millimeter wave imaging sensors, sources and systems |
| 04/06/1993 | US5200608 Photo-interrupter operating on wide-ranged power voltage with a constant current means |
| 03/30/1993 | US5198664 Photoelectric sensor assembly having compressible and sealing members |
| 03/30/1993 | US5198661 Segmented light curtain system and method |
| 03/23/1993 | US5196693 Method and apparatus of photodetection with maximum signal holding means |
| 03/18/1993 | WO1993005412A1 Area light switch |
| 03/18/1993 | WO1993005408A1 High resolution holographic surveillance system |
| 03/18/1993 | WO1993005386A1 Process for large surface measurement of the amount of thawing agents on traffic areas |
| 03/11/1993 | DE4215817C1 Self-monitoring protection unit preventing driverless vehicle hitting obstacle - uses reflection light scanner as light grid filtering out background using floor or ground as reference |
| 03/02/1993 | US5191209 Photoelectric switch sealed against infiltration of contaminants |
| 02/23/1993 | US5189398 Flame detecting and alarming system with ultraviolet sensor |
| 02/18/1993 | DE4126601A1 Paper material detector - comprises opto-electrical system with control to maintain constant difference signal from subtraction unit for reliable operation even when soiled |
| 02/16/1993 | US5187374 Optical paper sensing method and apparatus having light source and detector moveable in pivotal relation |
| 02/09/1993 | US5185528 Blasting accessory |
| 02/09/1993 | CA1313546C Detection circuitry |
| 02/03/1993 | EP0525383A2 Original and original size detecting device and method |
| 01/19/1993 | US5180910 Light barrier with retroreflector and optical means |
| 01/13/1993 | EP0522478A2 Intrusion detection system |
| 01/13/1993 | EP0360849B1 Apparatus for sensing the presence of a record member |
| 01/07/1993 | DE4120816A1 Tunnel construction work monitoring system - uses infrared sensor to probe tunnel entrance and interior, sensor being proceeded by measurement optic |
| 01/05/1993 | US5177471 Landslide detecting apparatus having improved optical unit |
| 01/05/1993 | US5177352 Integrated optical tamper sensor with planar waveguide |
| 12/30/1992 | EP0520247A2 Surveillance apparatus comprising, transmitter, receiver and signal processing circuit |
| 12/24/1992 | DE4218658A1 Battery-powered hand-proximity sensing and control circuit - economises on current from rechargeable battery by employing primary sensor to trigger secondary sensor and driver |
| 12/23/1992 | EP0519239A2 Photoelectric switch sealed against infiltration of contaminants |
| 12/22/1992 | US5173600 Apparatus for detecting impurities in a fluid circuit using optical fibers and a magnet |
| 12/20/1992 | CA2068693A1 Battery-operated urinal/closet flush valve |
| 12/15/1992 | US5172003 Reflex type optical sheet sensor having a dustproof plate with a roughed surface |
| 12/15/1992 | US5171985 Semiconductor detector having a vertical optical axis and confronting emitter-receiver pair |
| 12/09/1992 | EP0516913A2 Method and device for photoelectric identification of a material web |
| 12/08/1992 | US5169234 Infrared temperature sensor |
| 12/01/1992 | US5168163 Method and apparatus for detecting the positions of articles transported on a conveyor, particularly for automatic packaging plants |
| 11/19/1992 | DE4116001A1 Opaque object detector e.g. for glass sorting - has row of infrared sources opposite row of photosemiconductors connected to evaluation circuit |
| 11/14/1992 | WO1992020992A1 Instrument for detecting the presence of a body and rolling mill provided with such an instrument |
| 11/14/1992 | CA2102614A1 Instrument for detecting the presence of a body and rolling mill provided with such an instrument |
| 11/12/1992 | WO1992019990A1 Self-adjusting, self-adaptive sensor device |
| 11/12/1992 | WO1992017227A3 Drop detection method and apparatus |
| 11/04/1992 | EP0511623A1 Apparatus for transporting sheet film |
| 11/03/1992 | US5160850 Light beam interrupt detection apparatus for use in a vibrating environment |
| 10/29/1992 | DE4116210A1 Attachment system for light barrier elements, e.g. for automatic door system - consists of common holder element for several light barrier element with openings for transmitting and receiving parts |