IL25345A - Measurement of non-linear surfaces - Google Patents

Measurement of non-linear surfaces

Info

Publication number
IL25345A
IL25345A IL2534566A IL2534566A IL25345A IL 25345 A IL25345 A IL 25345A IL 2534566 A IL2534566 A IL 2534566A IL 2534566 A IL2534566 A IL 2534566A IL 25345 A IL25345 A IL 25345A
Authority
IL
Israel
Prior art keywords
measurement
linear surfaces
linear
Prior art date
Application number
IL2534566A
Original Assignee
Optical Methods Inc
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 Optical Methods Inc filed Critical Optical Methods Inc
Publication of IL25345A publication Critical patent/IL25345A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/60—Systems using moiré fringes
    • 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
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Eye Examination Apparatus (AREA)
IL2534566A 1965-03-15 1966-03-09 Measurement of non-linear surfaces IL25345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43974965A 1965-03-15 1965-03-15

Publications (1)

Publication Number Publication Date
IL25345A true IL25345A (en) 1969-12-31

Family

ID=23745986

Family Applications (1)

Application Number Title Priority Date Filing Date
IL2534566A IL25345A (en) 1965-03-15 1966-03-09 Measurement of non-linear surfaces

Country Status (3)

Country Link
DE (1) DE1548287A1 (en)
GB (1) GB1145721A (en)
IL (1) IL25345A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436967A1 (en) * 1978-09-19 1980-04-18 Thomson Csf METHOD FOR OPTICAL ALIGNMENT OF PATTERNS IN TWO CLOSE PLANS AND ALIGNMENT DEVICE IMPLEMENTING SUCH A METHOD
US4569576A (en) * 1982-08-31 1986-02-11 Moskovsky Nauchno-Issledovatelsky Institut Glaznykh Boleznei Imeni Gelmgoltsa Method and device for determining cornea surface topography
GB2126745B (en) * 1982-09-02 1986-07-23 Mo Nauchno Issledovatelskyinst Method and device for determining cornea surface topography
GB2129956B (en) * 1982-11-06 1986-05-29 Mo Nii Glaznykh Boleznei Im Ge Selecting contact lenses for visual correction using photokeratogram

Also Published As

Publication number Publication date
GB1145721A (en) 1969-03-19
DE1548287A1 (en) 1970-10-08

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