| Patents for G01V 8 - Prospecting or detecting by optical means (8,157) |
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| 02/09/1983 | EP0070883A1 Photoelectric obstruction detector for elevator doorways. |
| 02/01/1983 | US4371786 Method and apparatus for detecting bubbles in a liquid |
| 01/18/1983 | US4368980 Apparatus for detecting an aqueous liquid in bottles and containers |
| 01/12/1983 | EP0069185A1 Photo-electric control device |
| 01/11/1983 | CA1139397A1 Material flow monitoring circuit |
| 01/05/1983 | EP0068019A1 Control device responsive to infrared radiation. |
| 12/29/1982 | EP0018979B1 A combination of a metal deforming machine and an instrusion detector system |
| 12/21/1982 | US4365153 Detection of certain minerals of zinc, tungsten, fluorine, molybdenum, mercury and other metals using photoluminescence |
| 12/14/1982 | US4364030 Intruder detection system |
| 12/07/1982 | CA1136885A1 Method and apparatus for the non-invasive determination of the characteristics of a segmented fluid stream |
| 11/24/1982 | EP0065159A2 Motion detector for space supervision |
| 11/16/1982 | US4359637 Feeler for a monitoring apparatus |
| 11/09/1982 | CA1135059A2 Hot gob detector for a glassware forming machine |
| 10/26/1982 | US4356393 Alignment indicator for photoelectric scanners |
| 10/26/1982 | US4356387 Apparatus for counting the number of objects passing a given point |
| 10/26/1982 | CA1134474A1 Photoelectronic apparatus with protection from effects of undesired light |
| 10/26/1982 | CA1134166A1 Detection of certain minerals of zinc, tungsten, fluorine, molybdenum, mercury and other metals using photoluminescence |
| 10/26/1982 | CA1134147A2 Hot gob detector for a glassware forming machine |
| 10/14/1982 | WO1982003464A1 Motion discontinuance detection system and method |
| 10/13/1982 | EP0062473A2 Method and apparatus for sensing and identifying information within a large interrogation zone |
| 10/13/1982 | EP0062288A1 Pulsed light barrier directly connected to an AC power supply |
| 10/12/1982 | US4354106 Light barrier apparatus |
| 10/06/1982 | EP0061937A1 Adjustable photoelectric detector head for solid state limit switch |
| 09/07/1982 | CA1131289A1 Differential fiber optic sensing method and apparatus for ink jet recorders |
| 09/07/1982 | CA1131031A1 Hot gob detector for a glassware forming machine |
| 08/31/1982 | US4347439 Level-shift and pulse shaping circuitry |
| 08/31/1982 | US4347438 Light transceiver device |
| 08/31/1982 | CA1130603A1 Optical method for remote determination of the geological nature of a homogeneous surface |
| 08/24/1982 | US4346293 Optical electronic distance sensor with a parallel beam of light and adjustable detector-emitter separation |
| 08/19/1982 | WO1982002787A1 Photoelectric obstruction detector for elevator doorways |
| 08/10/1982 | US4343991 Sample detector |
| 08/03/1982 | US4342987 Intruder detection system |
| 08/03/1982 | CA1129047A1 Photoelectric barrier, particularly useful as an accident-preventing device in machine tools |
| 07/21/1982 | EP0056248A1 Apparatus for detecting an object |
| 07/13/1982 | US4339748 Multiple range passive infrared detection system |
| 07/13/1982 | US4339660 Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects |
| 07/08/1982 | WO1982002270A1 Control device responsive to infrared radiation |
| 06/29/1982 | CA1126853A1 Object inspection system |
| 06/23/1982 | EP0054535A2 Device for the surveillance of a mill train or a water mill |
| 05/11/1982 | US4329591 Method for detecting samples |
| 05/05/1982 | EP0050812A1 Method and apparatus for detecting bubbles in a liquid |
| 05/05/1982 | EP0050751A1 Optical arrangement for an infrared intrusion detector |
| 05/05/1982 | EP0050750A1 Infrared intrusion detector |
| 05/04/1982 | US4328419 Photo-electric detector with temperature-compensated circuit |
| 04/13/1982 | US4324977 Synthesized target system |
| 03/09/1982 | US4319133 Photoelectric detection system |
| 03/02/1982 | US4317992 Object detecting apparatus |
| 01/19/1982 | US4311915 Electro-optical presence detection scanner |
| 01/12/1982 | US4310836 Photoelectric barrier, particularly useful as an accident-preventing device in machine tools |
| 01/12/1982 | US4310756 Light grid arrangement using cyclically switched semiconductor light sources |
| 01/05/1982 | US4309696 Trouble detecting unit in an optical security device |
| 01/05/1982 | US4309610 Method of determining the location, orientation and pattern of reinforcing members in reinforced concrete |
| 01/05/1982 | US4309605 Photo-reflective sensor |
| 12/30/1981 | EP0042805A1 Bidimensional photo-electric barrier |
| 12/22/1981 | US4307390 Corn and soybean sensor |
| 12/01/1981 | US4303342 Method and apparatus for detecting foreign matters in liquids |
| 11/18/1981 | EP0039799A1 Motion detection device |
| 11/18/1981 | EP0039683A1 Light grid with single light source. |
| 11/11/1981 | EP0039424A2 Light curtain adjustment device |
| 09/29/1981 | US4291977 Adjustment device for aligning a group of cyclically switched light transmitters or receivers with a single light receiver or transmitter |
| 09/29/1981 | CA1109963A1 Apparatus for detecting untreated postage stamps in a machine |
| 08/25/1981 | CA1107834A1 Defect detecting device |
| 08/11/1981 | US4283146 Optical detector |
| 08/05/1981 | EP0033167A2 Device for the detection of sheet-like objects |
| 08/04/1981 | US4282430 Reflection-type photoelectric switching apparatus |
| 07/28/1981 | US4281243 Apparatus for detecting postage stamps on envelopes |
| 07/07/1981 | US4276910 Photoelectrical bobbin feeler |
| 06/09/1981 | US4272189 Electro-optical projectile analyzer |
| 05/26/1981 | US4270046 Two-terminal optical sensor |
| 05/12/1981 | US4267443 Photoelectric input apparatus |
| 05/05/1981 | US4266124 Photoelectric object detector system |
| 05/05/1981 | CA1100592A1 Programmable voltage sensing circuit |
| 04/30/1981 | WO1981001200A1 Light grid with single light source |
| 04/22/1981 | EP0027389A1 Non-destructive process for determining physical state of materials within sealed container |
| 04/14/1981 | US4261284 Sea hunt system |
| 04/07/1981 | US4260882 Light sensitive detection circuit |
| 03/10/1981 | US4255754 Differential fiber optic sensing method and apparatus for ink jet recorders |
| 03/03/1981 | US4254333 Optoelectronic circuit element |
| 03/03/1981 | CA1096959A1 Apparatus for detecting foreign bodies in glass bottles |
| 02/24/1981 | US4253020 Apparatus for measuring projectile velocity |
| 02/03/1981 | US4249074 Intrusion detector for press brake |
| 01/27/1981 | US4247765 Pulsed feedback circuit for an optoelectronic detector |
| 01/14/1981 | EP0022263A2 Light curtain apparatus with provision for generating a cyclically varying scale signal |
| 01/07/1981 | EP0021163A1 Plane intrusion security system |
| 01/07/1981 | EP0020879A1 Optical electronic distance sensor |
| 01/06/1981 | CA1093192A1 Machine safeguard having infrared light presence sensor |
| 12/16/1980 | US4239964 Method for uranium determination |
| 12/16/1980 | US4239961 Photoelectric light curtain using retroreflector |
| 11/25/1980 | US4236181 Defect detecting device |
| 11/25/1980 | US4236071 Apparatus for remote detection of uranium minerals |
| 10/15/1980 | EP0017428A1 Apparatus and method for detecting the passage of coins |
| 10/15/1980 | EP0016969A1 Light barrier apparatus |
| 10/07/1980 | US4226533 Optical particle detector |
| 10/02/1980 | WO1980002081A1 Method and apparatus for detecting the presence of a coin in a passageway |
| 10/01/1980 | EP0016628A2 Fiber optic sensing apparatus for sensing the relative position of ink droplets or other objects of similar size in flight |
| 09/23/1980 | US4224608 Single terminal detection system |
| 08/21/1980 | WO1980001720A1 Optical device |
| 08/12/1980 | US4217053 Apparatus and method to test workpieces for size, relative position, material integrity, and the like |
| 08/05/1980 | US4216499 Inspection system for baggage |
| 08/05/1980 | US4215939 Glue drop detector |