RECEIVER OF LIGHT OF MULTIPLEX SPATIAL WAVELENGTH, MULTIPLEX TRANSMITTER OF SPATIAL WAVELENGTH AND AUDIOVISUAL SYSTEM

摘要

PROBLEM TO BE SOLVED: To realize multiplex transmission of spatial wavelength by a low-cost and simple construction.;SOLUTION: A multiplex transmitter of spatial wavelength is provided with a light receiver which has groups 2 and 4 of optical waveguides for input having several optical waveguides of different lengths and a two-dimensional waveguide 3, and is provided with a light source 11. The two-dimensional optical waveguide 3 has an incident end which is connected with exit ends of optical waveguides of the group 4 of optical waveguides for input, and exit ends which emit light of different wavelengths from different positions corresponding to the different wavelengths. The light source 11 has several light sources 1 which emit light of different wavelengths. As for the light receiver; the several wavelengths, the lengths of the optical waveguides 4, and positions of the exit ends of the two-dimensional optical waveguides 3 are set so that the wavelengths may be separated and emitted from the different positions of the exit ends of the two-dimensional optical waveguide 3. The light receiver and the light source 11 are placed with a distance in a free space 6 which is long enough for light of several different wavelengths emitted from the several light sources 1 to mix with one another and to be distributed in homogeneously.;COPYRIGHT: (C)2007,JPO&INPIT