SE339758B - - Google Patents

Info

Publication number
SE339758B
SE339758B SE10779/68A SE1077968A SE339758B SE 339758 B SE339758 B SE 339758B SE 10779/68 A SE10779/68 A SE 10779/68A SE 1077968 A SE1077968 A SE 1077968A SE 339758 B SE339758 B SE 339758B
Authority
SE
Sweden
Prior art keywords
plane
bars
instrument
screen
reference plane
Prior art date
Application number
SE10779/68A
Other languages
English (en)
Inventor
Kronnie G Te
K Volkers
Original Assignee
Vennootschap Onder Fa Ing Bure
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
Application filed by Vennootschap Onder Fa Ing Bure filed Critical Vennootschap Onder Fa Ing Bure
Publication of SE339758B publication Critical patent/SE339758B/xx

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Telescopes (AREA)
  • Viewfinders (AREA)
SE10779/68A 1967-08-10 1968-08-09 SE339758B (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6711045A NL6711045A (xx) 1967-08-10 1967-08-10

Publications (1)

Publication Number Publication Date
SE339758B true SE339758B (xx) 1971-10-18

Family

ID=19800928

Family Applications (1)

Application Number Title Priority Date Filing Date
SE10779/68A SE339758B (xx) 1967-08-10 1968-08-09

Country Status (6)

Country Link
US (1) US3572942A (xx)
CH (1) CH494396A (xx)
FR (1) FR1584366A (xx)
GB (1) GB1183915A (xx)
NL (1) NL6711045A (xx)
SE (1) SE339758B (xx)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861798A (en) * 1972-05-22 1975-01-21 Hitachi Ltd Mask for aligning patterns
SE400644B (sv) * 1976-10-15 1978-04-03 Bergkvist Lars A Anordning for optisk, foretredesvis visuell bestemning av ett visst plan
SE408734B (sv) * 1977-09-09 1979-07-02 Bergkvist Lars A Anordning vid raster avsedda att ge upphov till ett moiremonster
SE411686B (sv) * 1978-05-31 1980-01-28 Bergkvist Lars A Anordning for indikering av en vinkel eller riktning vid rorleggning eller motsvarande
SE426987B (sv) * 1981-09-16 1983-02-21 Inogon Licens Ab Enslinjeindikator
EP0086083A3 (en) * 1982-02-05 1984-10-10 Stanley Ratcliffe Improvements relating to navigation systems
US4681439A (en) * 1985-10-28 1987-07-21 Shoemaker Jack W Pipe laying method and apparatus
US4988886A (en) * 1989-04-06 1991-01-29 Eastman Kodak Company Moire distance measurement method and apparatus
US5022739A (en) * 1990-06-13 1991-06-11 Bennett Reginald B Direction indicating reflector with planar reflector panels including cube corners
US5075562A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Method and apparatus for absolute Moire distance measurements using a grating printed on or attached to a surface
US5075560A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Moire distance measurements using a grating printed on or attached to a surface
WO2006136010A1 (en) * 2005-06-20 2006-12-28 Normand Desourdis Air detected light reflecting modular beacon system
DE102010021367B4 (de) * 2010-05-25 2012-03-08 Deutsches Zentrum für Luft- und Raumfahrt e.V. Optische Winkelmesseinrichtung
US11284964B2 (en) * 2013-08-13 2022-03-29 Brainlab Ag Moiré marker device for medical navigation
JP6838954B2 (ja) * 2016-12-13 2021-03-03 株式会社ミツトヨ 光電式エンコーダ
CN107797171B (zh) * 2017-12-13 2020-03-10 常熟市电子仪器厂 光学引导装置用光栅的设计方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA588575A (en) * 1959-12-08 T. Goddard Charles Method of determining surface flatness
US2280038A (en) * 1941-10-17 1942-04-14 Associated Patentees Inc Turn indicator
US2390122A (en) * 1943-03-18 1945-11-27 Associated Patentees Inc Gauge
US2451972A (en) * 1945-12-03 1948-10-19 Associated Patentees Inc Optical indicator having cooperating grids
US2991743A (en) * 1957-07-25 1961-07-11 Burroughs Corp Optical device for image display
US2929631A (en) * 1957-12-30 1960-03-22 Gillon John Warren Golf club with angle of view indicator

Also Published As

Publication number Publication date
CH494396A (de) 1970-07-31
DE1798025A1 (de) 1972-01-27
GB1183915A (en) 1970-03-11
NL6711045A (xx) 1969-02-12
DE1798025B2 (de) 1972-10-12
FR1584366A (xx) 1969-12-19
US3572942A (en) 1971-03-30

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