Hand held light actuated point & click device

Multiple light emitting diodes (LEDs) capable of emitting light at different optical wavelengths are provided in a hand held device with switches for activating the LEDs separately or jointly. A matrix of radiant energy detectors are arrayed across a presentation screen at the display pixel locations of a screen. These radiant energy detectors are capable of distinguishing between the two radiant energy sources. A position location matrix is provided on the screen for detection where radiant energy is received from one or more of the radiant energy sources. Detection signal logic provides Boolean signals representative of which of the radiant energy signals is detected by the radiant energy detectors and control function logic responds to the position information and the Boolean signals to generate a cursor on a display screen and to manipulate display objects on the screen intercepted by the cursor.