Virtual reality system with a finger-wearable control

This is a virtual reality system that uses a finger-wearable device as a controller. The device senses when a user pinches their thumb and finger, and it emits both radio frequency and optical signals. The system then uses these signals, along with motion detection and optical sensors, to track the device's position in space and project visual content onto a screen. The claims narrow the optical emitters to a laser and an LED, and the motion detector to an accelerometer and a rotational sensor.