| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the equipment main body subjected to a specified controlled system from being controlled by external control signals which should not essentially control the equipment main body. <P>SOLUTION: For an optical transmission end main body 10 and an optical transmission end main body 20, both ends are turned to the same structure since only the attaching objects are different. Also, by attaching the optical transmission end main body 10 and the first optical transmission end main body 20 to the light receiving part 50 of a portable toilet 30 and the light emitting part 41 of a remote controller 40, the possibility that light from the outside enters the light receiving part 50 of the portable toilet 30 is eliminated and the possibility of the malfunction of the portable toilet 30 provided with the light receiving part 50 is eliminated. The portable toilet 30 is also controlled even from a position where normally the light can not be made to reach the light receiving part 50 of the portable toilet 30 and the control of the portable toilet 30 is difficult. <P>COPYRIGHT: (C)2007,JPO&INPIT |
