DE1303561B - - Google Patents

Info

Publication number
DE1303561B
DE1303561B DE19631303561D DE1303561DA DE1303561B DE 1303561 B DE1303561 B DE 1303561B DE 19631303561 D DE19631303561 D DE 19631303561D DE 1303561D A DE1303561D A DE 1303561DA DE 1303561 B DE1303561 B DE 1303561B
Authority
DE
Germany
Prior art keywords
fields
shaped
wedge
elements
transparent
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE19631303561D
Other languages
German (de)
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AMERICAN DESIGN ENGINEERING CORP
Original Assignee
AMERICAN DESIGN ENGINEERING CORP
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 AMERICAN DESIGN ENGINEERING CORP filed Critical AMERICAN DESIGN ENGINEERING CORP
Publication of DE1303561B publication Critical patent/DE1303561B/de
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/26Mechanical 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
    • G01D5/32Mechanical 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
    • G01D5/34Mechanical 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
    • G01D5/36Forming the light into pulses
    • G01D5/38Forming the light into pulses by diffraction gratings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/06Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
    • G01B21/065Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving for stretchable materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Eye Examination Apparatus (AREA)
DE19631303561D 1962-05-14 1963-05-14 Pending DE1303561B (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US194606A US3217590A (en) 1962-05-14 1962-05-14 Apparatus for producing moire patterns for use in determining the relative position of a pair of elements

Publications (1)

Publication Number Publication Date
DE1303561B true DE1303561B (enrdf_load_stackoverflow) 1972-02-03

Family

ID=22718226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19631303561D Pending DE1303561B (enrdf_load_stackoverflow) 1962-05-14 1963-05-14

Country Status (3)

Country Link
US (1) US3217590A (enrdf_load_stackoverflow)
DE (1) DE1303561B (enrdf_load_stackoverflow)
GB (1) GB1009699A (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE408734B (sv) * 1977-09-09 1979-07-02 Bergkvist Lars A Anordning vid raster avsedda att ge upphov till ett moiremonster
US4247769A (en) * 1978-12-21 1981-01-27 The Charles Stark Draper Laboratory, Inc. Apparatus for measuring angular and linear displacements
GB8821837D0 (en) * 1988-09-16 1988-10-19 Renishaw Plc Scale for use with opto-electronic scale reading apparatus
GB2302587B (en) * 1995-06-24 1998-04-08 British Aerospace Measuring relative deflection between two adjacent components

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1415627A (en) * 1919-11-07 1922-05-09 Howard S Levy Precision instrument
US2247076A (en) * 1939-08-25 1941-06-24 Gen Electric Tuning instrument
US2246001A (en) * 1940-04-01 1941-06-17 Associated Patentees Inc Light modulator
US2256170A (en) * 1941-01-24 1941-09-16 Associated Patentees Inc Propeller synchronizing and other instruments
US2280038A (en) * 1941-10-17 1942-04-14 Associated Patentees Inc Turn indicator
US2451972A (en) * 1945-12-03 1948-10-19 Associated Patentees Inc Optical indicator having cooperating grids
US2475490A (en) * 1948-03-20 1949-07-05 Gelardin Albert Direct reading, visual index forming intersection pattern thread and line counter
US2559915A (en) * 1949-12-28 1951-07-10 Gaebel Arthur Henry Half-tone screen determiner
US2817266A (en) * 1954-04-13 1957-12-24 Gelardin Albert Direct reading, visual index forming, intersection pattern thread and line counter
US2788519A (en) * 1954-12-10 1957-04-09 Telecomputing Corp Position indicating device

Also Published As

Publication number Publication date
US3217590A (en) 1965-11-16
GB1009699A (en) 1965-11-10

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