AT299759B - Photoelectric barrier - Google Patents

Photoelectric barrier

Info

Publication number
AT299759B
AT299759B AT663770A AT663770A AT299759B AT 299759 B AT299759 B AT 299759B AT 663770 A AT663770 A AT 663770A AT 663770 A AT663770 A AT 663770A AT 299759 B AT299759 B AT 299759B
Authority
AT
Austria
Prior art keywords
photoelectric barrier
photoelectric
barrier
Prior art date
Application number
AT663770A
Other languages
German (de)
Original Assignee
Siemens Ag
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
Priority claimed from DE19691937503 external-priority patent/DE1937503C/en
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT299759B publication Critical patent/AT299759B/en

Links

Classifications

    • 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
    • G01J1/0414—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using plane or convex mirrors, parallel phase plates, or plane beam-splitters
    • 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
    • G01J1/0455—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings having a throughhole enabling the optical element to fulfil an additional optical function, e.g. a mirror or grating having a through-hole for a light collecting or light injecting optical fibre
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
    • G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Electronic Switches (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
AT663770A 1969-07-23 1970-07-21 Photoelectric barrier AT299759B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937503 DE1937503C (en) 1969-07-23 Reflex light barrier

Publications (1)

Publication Number Publication Date
AT299759B true AT299759B (en) 1972-06-26

Family

ID=5740693

Family Applications (1)

Application Number Title Priority Date Filing Date
AT663770A AT299759B (en) 1969-07-23 1970-07-21 Photoelectric barrier

Country Status (1)

Country Link
AT (1) AT299759B (en)

Also Published As

Publication number Publication date
DE1937503A1 (en) 1971-02-04
DE1937503B2 (en) 1972-11-02

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee