Abstract: A laser assembly and a method for controlling light output thereof are presented. The laser assembly comprises a semiconductor laser diode having an active region and its associated electric current driver. The electric current driver is controllably operated to excite said active region to induce a certain electric current profile therethrough. The electric current profile corresponds to a desired emission profile from the laser assembly and a desired over heating profile of the active region of the laser diode, while maintaining predetermined temperature range of said active region of the semiconductor laser diode.

Abstract: A projector and a system comprising a projector and a handheld device are described. In a preferred embodiment, a projector for projecting an image includes a back section and a front section. The back section has a bottom surface for resting on a supporting surface, and the front section has an optical window for projecting light indicative of the image. The front section is tilted with respect to the bottom surface of the back section to define a tilt angle. The system includes a video-output generating handheld device, and a display device controlled by control signals generated by the handheld device. The handheld device and the display device are interconnected with no more than one physical video signal connection.