We investigated LiDAR using visible light laser diodes (LDs) and an optical power supply using visible laser diode (LD) are investigated. With LiDAR using a red LD, we obtained characteristics that ranged up to about 8 m, even with a 10% reflective blackboard, and about 3 times that with a 90% reflective white board. In addition, a laser power supply with a visible LD was achieved with more than 90% light transmission efficiency in both the red and the blue LDs. We also successfully demonstrated visible-laser feeding to a moving object that was detected by visible-light LiDAR.