Patent ID: 7524088

Claim:
A light source unit comprising: a light source including: (i) a reflector in which a lamp accommodating opening and a light exiting opening are formed and whose inner surface is mirror finished; and (ii) a lamp having electrodes in an interior thereof and including a bulb for emitting light and electrode introducing portions which guide the electrodes into the bulb; an anomalous lens disposed to be situated on an optical axis of light emitted from the light source and adapted to collect the light emitted from the light source; and a condenser lens for collecting light which has exited from the anomalous lens; wherein the lamp is inserted into the reflector from the lamp accommodating opening; and wherein the bulb is disposed within the reflector so that a position of a focal point of radiated light which is reflected from an inner wall of the reflector is not situated on the electrode introducing portions and the anomalous lens, but is situated between the electrode introducing portions and the anomalous lens, forming a circle centered at an optical axis of the radiated light.