Minimum Circuit Opt.Transceiver & Light-emitting Module
Please scroll down and you will see 7 pictures.
Circuit diagram for the simplest opt.transciever
Outside appearance
Box inside. only five parts!
Circuit diagram for the simplest emitting module
To make the unit as small as possible!
Resin-molded in short aluminium pipe
Insert the pipe to the lens box "Hana-chan". 1km communication is not difficult with this combination.
Extended version of simple transmission unit using melody chip
Current 800mA when pulse-on
Wooden lens box
Lightbeam projected on the wall of apartment house about 40m from my office
Lightbeam projected on the water tank of apartment house about 100m from my office
Ultra-high-power LED Luminus Devices PT-54 unit