GB451854A - Improvements in or relating to light beam signalling or the like systems - Google Patents

Improvements in or relating to light beam signalling or the like systems

Info

Publication number
GB451854A
GB451854A GB443835A GB443835A GB451854A GB 451854 A GB451854 A GB 451854A GB 443835 A GB443835 A GB 443835A GB 443835 A GB443835 A GB 443835A GB 451854 A GB451854 A GB 451854A
Authority
GB
United Kingdom
Prior art keywords
relating
systems
light beam
polarizer
analyzer
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
GB443835A
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
Priority to GB443835A priority Critical patent/GB451854A/en
Publication of GB451854A publication Critical patent/GB451854A/en
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)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Optical Communication System (AREA)

Abstract

451,854. Photophones. CADZOW, R., Ardentinny, Argyllshire. Feb. 12, 1935, No. 4438. [Class 40 (v)] A transmitter has a source of light S, a polarizer P, a Kerr cell KC and a projecting lens LST, a receiver has an analyzer A and a photo-electric cell PC for deriving the signals, and the polarizer and analyzer are moved in synchronism. The polarizer and analyzer are crossed Nicol prisms.
GB443835A 1935-02-12 1935-02-12 Improvements in or relating to light beam signalling or the like systems Expired GB451854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB443835A GB451854A (en) 1935-02-12 1935-02-12 Improvements in or relating to light beam signalling or the like systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB443835A GB451854A (en) 1935-02-12 1935-02-12 Improvements in or relating to light beam signalling or the like systems

Publications (1)

Publication Number Publication Date
GB451854A true GB451854A (en) 1936-08-12

Family

ID=9777177

Family Applications (1)

Application Number Title Priority Date Filing Date
GB443835A Expired GB451854A (en) 1935-02-12 1935-02-12 Improvements in or relating to light beam signalling or the like systems

Country Status (1)

Country Link
GB (1) GB451854A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515263A (en) * 1944-02-24 1950-07-18 Raibourn Paul Communication system
US2707749A (en) * 1949-06-21 1955-05-03 Rines Robert Harvey System of light beam communication

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2515263A (en) * 1944-02-24 1950-07-18 Raibourn Paul Communication system
US2707749A (en) * 1949-06-21 1955-05-03 Rines Robert Harvey System of light beam communication

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