US Patent 10436552 Dual color laser gun sight

A laser sight system for switching between one color of projected light, and a second color of projected light, depending upon ambient lighting levels. The system includes laser projectors of at least two colors, and optionally, a light level sensor having a setpoint and a setpoint adjuster. Actuation of an appropriate laser projector may be determined by sensing ambient light. The system may include a flashlight for general illumination, and a manual selector for selecting among three modes of operation. In one mode, only the laser projectors operate. In another mode, only the flashlight operates. In another mode, the lasers operate subject to the light level sensor, and the flashlight operates when the low light level laser is operating.