CH558930A - PROCESS AND DEVICE FOR HIGHLY ACCURATE POSITIONING OF THE EDGE OF AN OBJECTIVE. - Google Patents

PROCESS AND DEVICE FOR HIGHLY ACCURATE POSITIONING OF THE EDGE OF AN OBJECTIVE.

Info

Publication number
CH558930A
CH558930A CH809073A CH809073A CH558930A CH 558930 A CH558930 A CH 558930A CH 809073 A CH809073 A CH 809073A CH 809073 A CH809073 A CH 809073A CH 558930 A CH558930 A CH 558930A
Authority
CH
Switzerland
Prior art keywords
objective
edge
highly accurate
accurate positioning
positioning
Prior art date
Application number
CH809073A
Other languages
German (de)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of CH558930A publication Critical patent/CH558930A/en

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
    • G01D5/341—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 controlling the movement of a following part
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
CH809073A 1972-06-13 1973-06-06 PROCESS AND DEVICE FOR HIGHLY ACCURATE POSITIONING OF THE EDGE OF AN OBJECTIVE. CH558930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7221220A FR2188818A5 (en) 1972-06-13 1972-06-13

Publications (1)

Publication Number Publication Date
CH558930A true CH558930A (en) 1975-02-14

Family

ID=9100110

Family Applications (1)

Application Number Title Priority Date Filing Date
CH809073A CH558930A (en) 1972-06-13 1973-06-06 PROCESS AND DEVICE FOR HIGHLY ACCURATE POSITIONING OF THE EDGE OF AN OBJECTIVE.

Country Status (3)

Country Link
CH (1) CH558930A (en)
DE (1) DE2329717A1 (en)
FR (1) FR2188818A5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH652333A5 (en) * 1983-02-11 1985-11-15 Vevey Atel Const Mec Optical detection device for the location of reference line.
FR2631438B1 (en) * 1988-05-11 1991-06-21 Photonetics METHOD FOR POSITIONING AN OBJECT RELATIVE TO A PLANE, METHOD FOR MEASURING LENGTH AND DEVICES FOR CARRYING OUT SAID METHODS
EP0805955A1 (en) * 1995-01-25 1997-11-12 Industrial Innovation And Development Limited Method and apparatus for detecting an object

Also Published As

Publication number Publication date
DE2329717A1 (en) 1974-02-07
FR2188818A5 (en) 1974-01-18

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Legal Events

Date Code Title Description
PL Patent ceased