GB1539181A - Optical apparatus - Google Patents

Optical apparatus

Info

Publication number
GB1539181A
GB1539181A GB5384974A GB5384974A GB1539181A GB 1539181 A GB1539181 A GB 1539181A GB 5384974 A GB5384974 A GB 5384974A GB 5384974 A GB5384974 A GB 5384974A GB 1539181 A GB1539181 A GB 1539181A
Authority
GB
United Kingdom
Prior art keywords
optical apparatus
optical
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
GB5384974A
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB5384974A priority Critical patent/GB1539181A/en
Publication of GB1539181A publication Critical patent/GB1539181A/en
Expired legal-status Critical Current

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
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/4233—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application
    • G02B27/4255—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect having a diffractive element [DOE] contributing to a non-imaging application for alignment or positioning purposes
    • 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
    • G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
    • 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
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
GB5384974A 1976-05-18 1976-05-18 Optical apparatus Expired GB1539181A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5384974A GB1539181A (en) 1976-05-18 1976-05-18 Optical apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5384974A GB1539181A (en) 1976-05-18 1976-05-18 Optical apparatus

Publications (1)

Publication Number Publication Date
GB1539181A true GB1539181A (en) 1979-01-31

Family

ID=10469181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5384974A Expired GB1539181A (en) 1976-05-18 1976-05-18 Optical apparatus

Country Status (1)

Country Link
GB (1) GB1539181A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015575A1 (en) * 1979-03-12 1980-09-17 Krings, Josef Laser apparatus to align oblong structural members
GB2215159A (en) * 1988-02-26 1989-09-13 James Donald Campbell Allan Detecting change in location of a moving source of electromagnetic radiation
US6678060B2 (en) 2001-01-13 2004-01-13 Rolls-Royce Plc Monitoring distance variations

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015575A1 (en) * 1979-03-12 1980-09-17 Krings, Josef Laser apparatus to align oblong structural members
GB2215159A (en) * 1988-02-26 1989-09-13 James Donald Campbell Allan Detecting change in location of a moving source of electromagnetic radiation
GB2215159B (en) * 1988-02-26 1992-10-14 James Donald Campbell Allan Detecting change in location of a moving source of electromagnetic radiation
US6678060B2 (en) 2001-01-13 2004-01-13 Rolls-Royce Plc Monitoring distance variations

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee