Cyclists can already choose between plenty of cheap spoke-mounted LEDs that turn their bike wheels into highly-visible "rings of light" while they're turning. California-based startup MonkeyLectric ...

The wheels of a moving vehicle can move at different speeds, with some turning faster than others. This can cause a loss of steering control and compromise safety on the road. To mitigate this, speed ...

Motion sensors can be built into individual luminaires or installed remotely to detect surrounding persons or objects. LED luminaires with inbuilt sensors are becoming increasingly popular and readily ...

Light sensors often use an infrared LED as a light source. Infrared LEDs have a greater intensity than LEDs that emit visible light. And when infrared photodiodes are used the sensors are relatively ...