| 摘要 |
PURPOSE:To improve operability by providing a reception means which receives transmitted radio wave from a business communication radio equipment and a remote control means which switches over operational states when a received signal is a specified signal on a light emission control part. CONSTITUTION:A light emission sight line guiding index 1 is turned on/off based upon the detection of a brightness detecting sensor 5 and flickering timing is corrected based upon time announcement broadcasting at every interval of the specified time. For example, when visibility is reduced to snow fall, the light emissive sight line guiding index 1 is flickered while having priority over the detection of the brightness detecting sensor 5 by transmitting specified signal with a business communication radio equipment. Since the light emission sight line guiding index 1 is remote controlled with the business communication radio equipment without using a telephone circuit, a telephone circuit constructing work is eliminated. |
