IT961146B - Apparecchio permettente di determi nare la direzione di una radiazio ne luminosa - Google Patents

Apparecchio permettente di determi nare la direzione di una radiazio ne luminosa

Info

Publication number
IT961146B
IT961146B IT21176/72A IT2117672A IT961146B IT 961146 B IT961146 B IT 961146B IT 21176/72 A IT21176/72 A IT 21176/72A IT 2117672 A IT2117672 A IT 2117672A IT 961146 B IT961146 B IT 961146B
Authority
IT
Italy
Prior art keywords
device permitting
bright radiation
bright
radiation
permitting
Prior art date
Application number
IT21176/72A
Other languages
English (en)
Italian (it)
Original Assignee
Schlumberger Compteurs
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR7108662A external-priority patent/FR2129045A5/fr
Priority claimed from FR7202012A external-priority patent/FR2168223B2/fr
Application filed by Schlumberger Compteurs filed Critical Schlumberger Compteurs
Application granted granted Critical
Publication of IT961146B publication Critical patent/IT961146B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/7835—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using coding masks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Measuring Cells (AREA)
IT21176/72A 1971-03-12 1972-02-29 Apparecchio permettente di determi nare la direzione di una radiazio ne luminosa IT961146B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7108662A FR2129045A5 (OSRAM) 1971-03-12 1971-03-12
FR7202012A FR2168223B2 (OSRAM) 1972-01-21 1972-01-21

Publications (1)

Publication Number Publication Date
IT961146B true IT961146B (it) 1973-12-10

Family

ID=26216259

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21176/72A IT961146B (it) 1971-03-12 1972-02-29 Apparecchio permettente di determi nare la direzione di una radiazio ne luminosa

Country Status (3)

Country Link
GB (1) GB1380144A (OSRAM)
IT (1) IT961146B (OSRAM)
NL (1) NL7203313A (OSRAM)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4593187A (en) * 1982-10-29 1986-06-03 The Perkin-Elmer Corporation Non-imaging illumination incidence angle detection system
US4857721A (en) * 1988-03-28 1989-08-15 The Perkin-Elmer Corporation Optical direction sensor having gray code mask spaced from a plurality of interdigitated detectors
GB2504249B (en) * 1989-09-04 2014-07-23 Selex Galileo Ltd Apparatus for detecting varying-intensity coherent optical radiation
GB9022873D0 (en) * 1990-10-20 1990-12-05 Mitchelson David L Position fixing
WO2004081502A2 (en) * 2003-03-12 2004-09-23 O-Pen Aps A system and a method of determining the position of a radiation emitting element
ATE514991T1 (de) 2003-09-12 2011-07-15 Flatfrog Lab Ab System und verfahren zur bestimmung einer position eines strahlungsstreu-/- reflexionselements
US7442914B2 (en) 2003-09-12 2008-10-28 Flatfrog Laboratories Ab System and method of determining a position of a radiation emitting element
IL165618A0 (en) * 2004-12-07 2006-01-15 Complementary masks
SE533704C2 (sv) 2008-12-05 2010-12-07 Flatfrog Lab Ab Pekkänslig apparat och förfarande för drivning av densamma
US10168835B2 (en) 2012-05-23 2019-01-01 Flatfrog Laboratories Ab Spatial resolution in touch displays
US10019113B2 (en) 2013-04-11 2018-07-10 Flatfrog Laboratories Ab Tomographic processing for touch detection
CN103234511B (zh) * 2013-04-12 2015-04-22 北京控制工程研究所 小型长寿命编码式太阳敏感器
WO2015005847A1 (en) 2013-07-12 2015-01-15 Flatfrog Laboratories Ab Partial detect mode
WO2015108480A1 (en) 2014-01-16 2015-07-23 Flatfrog Laboratories Ab Improvements in tir-based optical touch systems of projection-type
US10146376B2 (en) 2014-01-16 2018-12-04 Flatfrog Laboratories Ab Light coupling in TIR-based optical touch systems
CN104090509B (zh) * 2014-06-24 2017-01-11 北京控制工程研究所 基于fpga的编码式太阳敏感器信号处理系统
EP3161594A4 (en) 2014-06-27 2018-01-17 FlatFrog Laboratories AB Detection of surface contamination
EP3250993B1 (en) 2015-01-28 2019-09-04 FlatFrog Laboratories AB Dynamic touch quarantine frames
US10318074B2 (en) 2015-01-30 2019-06-11 Flatfrog Laboratories Ab Touch-sensing OLED display with tilted emitters
US10496227B2 (en) 2015-02-09 2019-12-03 Flatfrog Laboratories Ab Optical touch system comprising means for projecting and detecting light beams above and inside a transmissive panel
US10401546B2 (en) 2015-03-02 2019-09-03 Flatfrog Laboratories Ab Optical component for light coupling
EP4075246B1 (en) 2015-12-09 2024-07-03 FlatFrog Laboratories AB Stylus for optical touch system
EP3545392A4 (en) 2016-11-24 2020-07-29 FlatFrog Laboratories AB AUTOMATIC TACTILE SIGNAL OPTIMIZATION
KR20250020732A (ko) 2016-12-07 2025-02-11 플라트프로그 라보라토리즈 에이비 개선된 터치 장치
CN110300950B (zh) 2017-02-06 2023-06-16 平蛙实验室股份公司 触摸感测系统中的光学耦合
US10606414B2 (en) 2017-03-22 2020-03-31 Flatfrog Laboratories Ab Eraser for touch displays
EP4036697A1 (en) 2017-03-28 2022-08-03 FlatFrog Laboratories AB Optical touch sensing apparatus
US11256371B2 (en) 2017-09-01 2022-02-22 Flatfrog Laboratories Ab Optical component
WO2019172826A1 (en) 2018-03-05 2019-09-12 Flatfrog Laboratories Ab Improved touch-sensing apparatus
WO2020080992A1 (en) 2018-10-20 2020-04-23 Flatfrog Laboratories Ab Frame for a touch-sensitive device and tool therefor
WO2020153890A1 (en) 2019-01-25 2020-07-30 Flatfrog Laboratories Ab A videoconferencing terminal and method of operating the same
ES2991658T3 (es) 2019-11-25 2024-12-04 Flatfrog Lab Ab Un aparato táctil
US12282653B2 (en) 2020-02-08 2025-04-22 Flatfrog Laboratories Ab Touch apparatus with low latency interactions
US11893189B2 (en) 2020-02-10 2024-02-06 Flatfrog Laboratories Ab Touch-sensing apparatus

Also Published As

Publication number Publication date
NL7203313A (OSRAM) 1972-09-14
GB1380144A (en) 1975-01-08

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