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The group of bicycle rider is getting bigger, and the security of bicycle riding is very important. The light of bicycle now mostly used to warn the front and the back, so we try to add light at the side as warning light, and can also work as direction light. Set light projector and gyroscope on the handle, when you changing direction, the gyro scope will detect the angle of dip and make the projector project light on the ground, letting others know which way you are going. These two function of locator light and direction light lower the risk of bicycle riding.
CHANG,JIA-YU LIN,LIANG-JUN ZHAN,ZI-LIN HUANG,CHANG-RUEI