Title:
【発明の名称】波長が10mm以下の電磁波の指向性光束を用いて情報を屋外で伝達させるための方法及び装置
Document Type and Number:
Japanese Patent JPS62501113
Kind Code:
A
Abstract:
At least two bundles of coherently modulated rays (S1, S2) are directed in such a way towards the receiving side (V) by the emitting side (A), with an interval between the radiation axes of at least 200 mm and at least 100 lambda (ta), that the bundles of rays (S1, S2) intersected each other at the receiving side (SK). The common intensity of the mutually intersecting bundles of rays is then detected at the receiving side and the information derived from the signal resulting from this detection is reproduced. The device used to apply the method of the invention is essentially characterized by two emitters (A1, A2) at the emitting side (A) provided with a bundle image and mutually spaced by at least 200mm and at least 100 lambda , connected to a modulator, where lambda is the wavelength of the electromagnetic waves employed.
Inventors:
Jesenai Peter
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Application Number:
JP50406085A
Publication Date:
April 30, 1987
Filing Date:
September 10, 1985
Export Citation:
Assignee:
Tab-Kezure-Syctato-Intet
International Classes:
H04B7/04; H04B10/112; H04B7/06; (IPC1-7): H04B7/04; H04B9/00
Attorney, Agent or Firm:
Takehisa Ito