FR2056620A5 - - Google Patents

Info

Publication number
FR2056620A5
FR2056620A5 FR7028896A FR7028896A FR2056620A5 FR 2056620 A5 FR2056620 A5 FR 2056620A5 FR 7028896 A FR7028896 A FR 7028896A FR 7028896 A FR7028896 A FR 7028896A FR 2056620 A5 FR2056620 A5 FR 2056620A5
Authority
FR
France
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.)
Expired
Application number
FR7028896A
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.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
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 Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Application granted granted Critical
Publication of FR2056620A5 publication Critical patent/FR2056620A5/fr
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Gyroscopes (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR7028896A 1969-08-06 1970-08-05 Expired FR2056620A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691939901 DE1939901A1 (de) 1969-08-06 1969-08-06 Photoelektrische Einrichtung zum Feststellen der Lage von Strichmarkierungen

Publications (1)

Publication Number Publication Date
FR2056620A5 true FR2056620A5 (fr) 1971-05-14

Family

ID=5742015

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7028896A Expired FR2056620A5 (fr) 1969-08-06 1970-08-05

Country Status (5)

Country Link
US (1) US3681605A (fr)
CH (1) CH506781A (fr)
DE (1) DE1939901A1 (fr)
FR (1) FR2056620A5 (fr)
GB (1) GB1325457A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH996H (en) 1987-01-20 1991-11-05 Recognition Equipment Incorporated High resolution page image display system
US5187375A (en) * 1990-12-11 1993-02-16 Texas Instruments Incorporated Optical object edge detector using partially covered reference sensor

Also Published As

Publication number Publication date
US3681605A (en) 1972-08-01
GB1325457A (en) 1973-08-01
DE1939901A1 (de) 1971-02-18
CH506781A (de) 1971-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse