Patent ID: 7493046

Claim:
A remote control transmitter, comprising plural light emitting diodes placed therein that include at least one pair of light emitting diodes and have, as light sources for remote control, substantially the same electrical and optical characteristics, wherein the pair of light emitting diodes are placed in a manner that maximum radiation directions of the pair of light emitting diodes each giving a maximum radiation intensity are each inclined at a given angle symmetrically with respect to a bisector of a line segment which connects center points of the pair of light emitting diodes, wherein the given angle is such that one of radiation directions of each of the pair of light emitting diodes giving a relative radiation intensity of 90% relative to the maximum radiation intensity is parallel to the bisector, and wherein the remote control transmitter further comprises an angle adjustment unit configured to rotate the pair of light emitting diodes in order to adjust an inclination of the pair of light emitting diodes.