FR499912A - Perfectionnements aux procédés et dispositifs de signalisation par énergie radiante - Google Patents

Perfectionnements aux procédés et dispositifs de signalisation par énergie radiante

Info

Publication number
FR499912A
FR499912A FR499912A FR499912DA FR499912A FR 499912 A FR499912 A FR 499912A FR 499912 A FR499912 A FR 499912A FR 499912D A FR499912D A FR 499912DA FR 499912 A FR499912 A FR 499912A
Authority
FR
France
Prior art keywords
devices
radiant energy
signaling processes
energy signaling
processes
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
FR499912A
Other languages
English (en)
French (fr)
Inventor
Theodore Willard Case
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR499912A publication Critical patent/FR499912A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Optical Communication System (AREA)
FR499912A 1918-01-22 1918-09-24 Perfectionnements aux procédés et dispositifs de signalisation par énergie radiante Expired FR499912A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US213225A US1379166A (en) 1918-01-22 1918-01-22 Radiant-energy signaling system

Publications (1)

Publication Number Publication Date
FR499912A true FR499912A (fr) 1920-02-26

Family

ID=22794230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR499912A Expired FR499912A (fr) 1918-01-22 1918-09-24 Perfectionnements aux procédés et dispositifs de signalisation par énergie radiante

Country Status (3)

Country Link
US (1) US1379166A (enExample)
FR (1) FR499912A (enExample)
GB (1) GB132341A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505265A (en) * 1943-12-01 1950-04-25 Hartford Nat Bank & Trust Co Moving-coil system without core for a luxmeter comprising a selenium cell
US2473197A (en) * 1945-06-21 1949-06-14 Rca Corp Heat detecting system
US2495499A (en) * 1946-03-05 1950-01-24 Polaroid Corp Light filter transmitting infrared radiation and opaque to visible light
US2495527A (en) * 1946-03-05 1950-01-24 Polaroid Corp Light filter opaque to visible light and transmitting infrared radiation
US2525638A (en) * 1946-03-05 1950-10-10 Polaroid Corp Light filter transparent to infrared radiation and opaque to visible light
US2495500A (en) * 1946-03-07 1950-01-24 Polaroid Corp Light filter opaque to visible light and transmitting infrared radiation
US2451908A (en) * 1946-03-07 1948-10-19 Canadian Radium And Uranium Co Method and apparatus for detecting changes in dimensions
US2641711A (en) * 1949-01-14 1953-06-09 Tommasi Giovanni Photocell sensitive to electromagnetic radiations
US2970210A (en) * 1955-06-27 1961-01-31 Servo Corp Of America Hot-box detector
US2919298A (en) * 1956-10-23 1959-12-29 Hoffman Electronics Corp Light sensitive voltage producing device or the like
US3104478A (en) * 1960-12-05 1963-09-24 Aircraft Armaments Inc Hit indicator apparatus
US3204240A (en) * 1962-08-13 1965-08-31 Gen Precision Inc Passive communication system

Also Published As

Publication number Publication date
GB132341A (enExample)
US1379166A (en) 1921-05-24

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