GB1205345A - A device for measuring the azimuth angle of incidence of a beam of light - Google Patents

A device for measuring the azimuth angle of incidence of a beam of light

Info

Publication number
GB1205345A
GB1205345A GB35645/68A GB3564568A GB1205345A GB 1205345 A GB1205345 A GB 1205345A GB 35645/68 A GB35645/68 A GB 35645/68A GB 3564568 A GB3564568 A GB 3564568A GB 1205345 A GB1205345 A GB 1205345A
Authority
GB
United Kingdom
Prior art keywords
photo
incidence
angle
block
cell
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
GB35645/68A
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 GB1205345A publication Critical patent/GB1205345A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/7835—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using coding masks
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0411—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using focussing or collimating elements, i.e. lenses or mirrors; Aberration correction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G01J1/0437—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using masks, aperture plates, spatial light modulators, spatial filters, e.g. reflective filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
    • G01J1/4228—Photometry, e.g. photographic exposure meter using electric radiation detectors arrangements with two or more detectors, e.g. for sensitivity compensation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0204—Compact construction
    • G01J1/0209—Monolithic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Radar Systems And Details Thereof (AREA)

Abstract

1,205,345. Measuring the angle of incidence of a light beam. ERNST LEITZ G.m.b.H. July 25, 1968 [Aug.3, 1967; March 7, 1968], No.35645/68. Heading G1A. A device for measuring in one of two rectangular co-ordinates the azimuth angle of incidence of an almost parallel light beam comprises two reflecting surfaces facing towards and substantially parallel to each other so as to define a compartment through which the incident beam may be passed to be measured photo-electrically irrespective of variation in its angle of incidence in the direction normal to the parallel reflecting surfaces and the angle it is desired to measure. Light may be introduced by a convex lens 3, Fig. 1b, to a compartment comprising a block of glass, quartz, or plastics material, and the co-ordinate X to a point L on the back of the block may be measured photo-electrically by for example an arrangement which includes an electro-magnetically vibrated wire between the spot and the photo-cell. The position of the spot may be determined by the phase difference between the vibrating wire and the photo-cell output. A pair of additional photo-cells may be provided in the block itself and toward the back end to indicate the direction of spot displacement when it is outside the measurement area. A two-stage arrangement using a picture converter is described with reference to Fig.3 (not shown). A further arrangement, Figs.4a and 4b, comprises a stack of units each comprising two semi-circular blocks 15, 16 with the beam passing through a slit 17a in a diaphragm 17 in a common diametrical plane, to a photo-cell or reflecting surface on the rear face of the block 15. The photo-cells or reflecting surfaces of the block units are dimensioned and arranged to give a coded output of the angle of incidence. In the case of rear reflectors the beam may pass through a slit spaced from the common centre of curvature and be reflected to a photo-cell equally spaced on the other side of the centre. Filters may be used to exclude unwanted rays.
GB35645/68A 1967-08-03 1968-07-25 A device for measuring the azimuth angle of incidence of a beam of light Expired GB1205345A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1623500 1967-08-03
DE19681673922 DE1673922A1 (en) 1967-08-03 1968-03-07 Device for measuring the angle of incidence of a light bundle

Publications (1)

Publication Number Publication Date
GB1205345A true GB1205345A (en) 1970-09-16

Family

ID=25753830

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35645/68A Expired GB1205345A (en) 1967-08-03 1968-07-25 A device for measuring the azimuth angle of incidence of a beam of light

Country Status (3)

Country Link
DE (1) DE1673922A1 (en)
FR (1) FR1576128A (en)
GB (1) GB1205345A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329147A2 (en) * 1988-02-19 1989-08-23 Hughes Danbury Optical Systems, Inc. Improved optical direction of arrival sensor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009394A (en) * 1975-10-28 1977-02-22 The Magnavox Company Remote control light transmitter employing a cylindrical lens
US4042821A (en) * 1975-10-28 1977-08-16 The Magnavox Company Remote control light receiver
US4175231A (en) * 1976-09-28 1979-11-20 Canon Kabushiki Kaisha Device for detecting a moving body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0329147A2 (en) * 1988-02-19 1989-08-23 Hughes Danbury Optical Systems, Inc. Improved optical direction of arrival sensor
EP0329147B1 (en) * 1988-02-19 1995-01-04 Hughes Danbury Optical Systems, Inc. Improved optical direction of arrival sensor

Also Published As

Publication number Publication date
FR1576128A (en) 1969-07-25
DE1673922A1 (en) 1971-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees