FR1245360A - Dispositif à vibreur pour la commutation d'un faisceau lumineux - Google Patents

Dispositif à vibreur pour la commutation d'un faisceau lumineux

Info

Publication number
FR1245360A
FR1245360A FR815847A FR815847A FR1245360A FR 1245360 A FR1245360 A FR 1245360A FR 815847 A FR815847 A FR 815847A FR 815847 A FR815847 A FR 815847A FR 1245360 A FR1245360 A FR 1245360A
Authority
FR
France
Prior art keywords
switching
light beam
vibrator device
vibrator
light
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
FR815847A
Other languages
English (en)
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.)
Unicam Instruments Ltd
Original Assignee
Unicam Instruments Ltd
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 Unicam Instruments Ltd filed Critical Unicam Instruments Ltd
Application granted granted Critical
Publication of FR1245360A publication Critical patent/FR1245360A/fr
Expired 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
    • G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
    • G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Spectrometry And Color Measurement (AREA)
FR815847A 1959-01-19 1960-01-16 Dispositif à vibreur pour la commutation d'un faisceau lumineux Expired FR1245360A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189559A GB913101A (en) 1959-01-19 1959-01-19 Vibrator beam switch device

Publications (1)

Publication Number Publication Date
FR1245360A true FR1245360A (fr) 1960-11-04

Family

ID=9729927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR815847A Expired FR1245360A (fr) 1959-01-19 1960-01-16 Dispositif à vibreur pour la commutation d'un faisceau lumineux

Country Status (2)

Country Link
FR (1) FR1245360A (fr)
GB (1) GB913101A (fr)

Also Published As

Publication number Publication date
GB913101A (en) 1962-12-19

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