JPH0266049U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a block diagram of a device using this invention, and Fig. 3 is a diagram showing the configuration of a device using this invention. FIG. 4, a block diagram of the apparatus, is a diagram showing the optical power received by the optical receiver using the wavelength multiplexing method in FIG. 3. In the figure, 1 is a train, 2 is a terminal, 3 is an output signal of terminal 2, 4 is an optical transmitter for wavelength λ1, 5 is an optical transmitter for wavelength λ2, 6 is an optical path for wavelength λ1, and 7 is an optical path for wavelength λ2. , 8 is a wavelength multiplexing optical receiver, 9 is an optical space transmitter, 10 is a drive circuit, 11 is a light emitting element, 12 is an elliptical lens, 13 is an optical path of the optical space transmitter 9, and 14 is an optical receiver. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In an optical space transmission device, there is a drive circuit that receives an electrical signal and drives a light emitting element, a light emitting element that receives the electrical signal of this drive circuit and converts it into electricity, and an optical signal that is photoelectrically converted by this light emitting element into an elliptical shape. an optical spatial transmitter having a radiating lens;