FR49824E - Method and devices for transforming illumination variations into mechanical actions - Google Patents

Method and devices for transforming illumination variations into mechanical actions

Info

Publication number
FR49824E
FR49824E FR49824DA FR49824E FR 49824 E FR49824 E FR 49824E FR 49824D A FR49824D A FR 49824DA FR 49824 E FR49824 E FR 49824E
Authority
FR
France
Prior art keywords
transforming
devices
mechanical actions
illumination variations
illumination
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
Other languages
French (fr)
Inventor
Constantin Chilowsky
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
Application granted granted Critical
Publication of FR49824E publication Critical patent/FR49824E/en
Expired legal-status Critical Current

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
    • G01J1/48—Photometry, e.g. photographic exposure meter using chemical effects
    • G01J1/54—Photometry, e.g. photographic exposure meter using chemical effects by observing photo-reactions between gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
FR49824D 1938-03-19 1938-03-19 Method and devices for transforming illumination variations into mechanical actions Expired FR49824E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR49824T 1938-03-19

Publications (1)

Publication Number Publication Date
FR49824E true FR49824E (en) 1939-08-08

Family

ID=8684923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR49824D Expired FR49824E (en) 1938-03-19 1938-03-19 Method and devices for transforming illumination variations into mechanical actions

Country Status (1)

Country Link
FR (1) FR49824E (en)

Similar Documents

Publication Publication Date Title
FR865018A (en) Method and devices for drawing artificial filaments
FR838547A (en) Apparatus for producing anesthesia
FR861685A (en) Method for obtaining diazotype
FR49824E (en) Method and devices for transforming illumination variations into mechanical actions
FR841111A (en) Method and devices for transforming illumination variations into mechanical actions
FR849673A (en) Method and device for the production of urea
FR863509A (en) Process for the materialization of schedules or graphics and implementation devices
FR829561A (en) Mechanical attraction for the amusement of crowds
FR851695A (en) Devices for simultaneous amplification and generation of frequencies
FR836216A (en) Candles and process for making them
FR835591A (en) Process for improving lubricants
FR804417A (en) Method and lighting devices for microscopes
FR851281A (en) Method and devices for facilitating the landing of airplanes
FR831664A (en) Process and device for the manufacture of primary oxyalkylamines
FR899578A (en) Method and apparatus for the manufacture of agglomerates of small dimensions
FR853350A (en) Apparatus for the application of sympathico-therapy
FR859574A (en) Method and installation for the transformation of electrical oscillations
FR839123A (en) Method and apparatus for the manufacture of agglomerates
FR838851A (en) Delta? -Alkenyl cyanoacetic esters and process for making them
FR831567A (en) Process for the projection of animated views
FR832681A (en) Method and apparatus for generating gears
FR854174A (en) Process and installation for air purification
FR883396A (en) Device for uniform illumination of a surface
FR49021E (en) Apparatus for the production of oils
FR851990A (en) Method and device for the production of magnesium