Patent ID: 7607787
Filing Date: 2009-10-27
Classification: F21V,G02B,H04N

Abstract:
1. A light source unit comprising: a reflector whose internal surface is planished to provide a mirror reflection effect and which is formed with a lamp accommodation opening and a light emitting opening; a light source comprising a bulb which radiates light and a lamp including an electrode introducing portion that guides electrodes into the bulb; and a condenser which lies on an optical axis of the light radiated from the lamp and which is adapted to gather the light that is radiated from the lamp and that is reflected on the reflector; wherein the condenser comprises a lens having a recessed portion which is formed in a central portion of at least one of lens surfaces thereof; wherein the lamp is inserted into an interior of the reflector from the lamp accommodation opening; and wherein the bulb is disposed such that a focal point of the radiated light that is reflected on an inner wall of the reflector is not positioned on the electrode introducing portion but is positioned between the electrode introducing portion and a light gathering surface of the condenser such that a circle centered at the optical axis of the light emitted from the light source is formed in the position of the focal point.