JPS49119679A - - Google Patents

Info

Publication number
JPS49119679A
JPS49119679A JP48030067A JP3006773A JPS49119679A JP S49119679 A JPS49119679 A JP S49119679A JP 48030067 A JP48030067 A JP 48030067A JP 3006773 A JP3006773 A JP 3006773A JP S49119679 A JPS49119679 A JP S49119679A
Authority
JP
Japan
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.)
Pending
Application number
JP48030067A
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 filed Critical
Priority to JP48030067A priority Critical patent/JPS49119679A/ja
Priority to US05/451,683 priority patent/US3970371A/en
Priority to DE2412633A priority patent/DE2412633A1/de
Publication of JPS49119679A publication Critical patent/JPS49119679A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • G02B26/04—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light by periodically varying the intensity of light, e.g. using choppers
    • 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
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/34—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker
    • G01J1/36—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using separate light paths used alternately or sequentially, e.g. flicker using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Radiation Pyrometers (AREA)
JP48030067A 1973-03-16 1973-03-16 Pending JPS49119679A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP48030067A JPS49119679A (ja) 1973-03-16 1973-03-16
US05/451,683 US3970371A (en) 1973-03-16 1974-03-15 Apparatus for chopping light beam
DE2412633A DE2412633A1 (de) 1973-03-16 1974-03-15 Lichtzerhacker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48030067A JPS49119679A (ja) 1973-03-16 1973-03-16

Publications (1)

Publication Number Publication Date
JPS49119679A true JPS49119679A (ja) 1974-11-15

Family

ID=12293458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48030067A Pending JPS49119679A (ja) 1973-03-16 1973-03-16

Country Status (3)

Country Link
US (1) US3970371A (ja)
JP (1) JPS49119679A (ja)
DE (1) DE2412633A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524676A (en) * 1978-08-09 1980-02-21 Sanyo Electric Co Ltd Infrared thermometer
JPH03202724A (ja) * 1989-02-03 1991-09-04 Sanyo Electric Co Ltd 赤外線検出装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044756A (en) * 1976-04-02 1977-08-30 Hamilton Robert W Phosphene generator device
EP0115126A1 (en) * 1982-12-01 1984-08-08 Frequency Control Products, Inc. Switching means for single fiber optic cables
US5382204A (en) * 1993-01-25 1995-01-17 Green; Glenn K. Solar phosphene generator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123755A (en) * 1964-03-03 Electrical system for maintenance of
US3215917A (en) * 1955-06-02 1965-11-02 Buck Instr Co Electrically driven timing device
US3577101A (en) * 1967-10-20 1971-05-04 Forschungslaboratorium Heimann W Prof Dr Ing Electromechanical torsional oscillator
JPS4943989B1 (ja) * 1968-07-19 1974-11-26
US3554655A (en) * 1969-01-27 1971-01-12 Nebetco Engineering Smoke density measuring device including means to periodically block a light from a portion of the field of view

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5524676A (en) * 1978-08-09 1980-02-21 Sanyo Electric Co Ltd Infrared thermometer
JPS617570B2 (ja) * 1978-08-09 1986-03-07 Sanyo Electric Co
JPH03202724A (ja) * 1989-02-03 1991-09-04 Sanyo Electric Co Ltd 赤外線検出装置

Also Published As

Publication number Publication date
US3970371A (en) 1976-07-20
DE2412633A1 (de) 1974-09-26

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