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GB1065270A - Photoelectric scanning of measuring marks - Google Patents

Photoelectric scanning of measuring marks

Info

Publication number
GB1065270A
GB1065270A GB27582/65A GB2758265A GB1065270A GB 1065270 A GB1065270 A GB 1065270A GB 27582/65 A GB27582/65 A GB 27582/65A GB 2758265 A GB2758265 A GB 2758265A GB 1065270 A GB1065270 A GB 1065270A
Authority
GB
United Kingdom
Prior art keywords
mark
image
flip
flop
fed
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.)
Expired
Application number
GB27582/65A
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.)
Ernst Leitz Wetzlar GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
Ernst Leitz 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 Ernst Leitz Wetzlar GmbH, Ernst Leitz GmbH filed Critical Ernst Leitz Wetzlar GmbH
Publication of GB1065270A publication Critical patent/GB1065270A/en
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
    • 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
    • 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
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • 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
    • G01D7/00—Indicating measured values

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1, 065, 270. Determining position photo - electrically. ERNST LEITZ G. m. b. H. June 29, 1965 [July 3, 1964], No. 27582/65. Heading G1A. In an arrangement for determining the position of a mark (10) Fig. 1 (not shown) on a transparent plate (1Oa) with respect to two co-ordinates, an image (16) of the mark is formed in a light beam by a plate (11), and the image is made to traverse a circular path by a rotating refractive element such as a prism or an oblique plate (12). The pulses produced in a photo-cell (17) by the recurring coincidences of the respective pairs of mark and image axes are fed to a flip-flop (18), and the leading and trailing edges of the output pulses from flip-flop (18) are fed to respective flip-flops (19), (20), which provide X and Y co-ordinate signals through integrating circuits (21), (22). The image and mark may both be cruciforms, or one may be a cruciform, and one a spot.
GB27582/65A 1964-07-03 1965-06-29 Photoelectric scanning of measuring marks Expired GB1065270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964L0048187 DE1233614B (en) 1964-07-03 1964-07-03 Arrangement for determining the position of measuring marks according to two coordinates and methods for evaluating the signals

Publications (1)

Publication Number Publication Date
GB1065270A true GB1065270A (en) 1967-04-12

Family

ID=7272359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27582/65A Expired GB1065270A (en) 1964-07-03 1965-06-29 Photoelectric scanning of measuring marks

Country Status (3)

Country Link
CH (1) CH441784A (en)
DE (1) DE1233614B (en)
GB (1) GB1065270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709858A1 (en) * 1986-04-18 1987-10-22 Heidelberger Druckmasch Ag DETERMINING THE MULTI-COLOR PRINT REGISTER ERROR

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1623699B1 (en) * 1967-05-12 1971-12-16 Anatolij Alexandrowi Gawrilkin PHOTOELECTRIC MICROSCOPE
DE1773965B1 (en) * 1968-08-01 1971-03-25 Leitz Ernst Gmbh DEVICE FOR GENERATING A SWINGING LIGHT BEAM
FR2510767B1 (en) * 1981-07-28 1985-07-26 Essilor Int METHOD AND DEVICE FOR CENTERING A LENS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE916229C (en) * 1952-01-18 1954-08-05 Genevoise Instr Physique Device for photoelectric measurement of the position of a line in a graduation
DE1763176U (en) * 1953-08-24 1958-03-13 Leitz Ernst Gmbh DEVICE FOR PHOTOELECTRIC SCANNING OF THE POSITION OF AN OBJECT.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3709858A1 (en) * 1986-04-18 1987-10-22 Heidelberger Druckmasch Ag DETERMINING THE MULTI-COLOR PRINT REGISTER ERROR

Also Published As

Publication number Publication date
CH441784A (en) 1967-08-15
DE1233614B (en) 1967-02-02

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