Patent ID: 8721090

Claim:
A projection system, comprising: a first light source unit and a second light source unit selectively driven in response to an operation mode; a light transmitting unit configured to transmit light emitted from the first light source unit or the second light source unit in the form of surface light; an image generator configured to generate an image in response to an image signal using the light transmitted from the light transmitting unit; a projection lens unit configured to enlarge the image generated by the image generator and project the enlarged image, wherein the operation mode is determined based on whether power is supplied through an adapter (an adapter mode) or from a battery (a battery mode); and a light source selector configured to allow the light from the first light source unit or the second light source unit to be transmitted to the light transmitter in response to the operation mode, wherein the light source selector includes a mirror, and wherein the mirror has a first angle when the first light source unit is operated, and has a second angle when the second light source unit is operated, such that the light incident from the first light source unit or the second light source unit is transmitted to the light transmitter.