Patent ID: 6152589
Filing Date: 2000-11-28
Classification: F21S

Abstract:
A lamp comprising:a light source;a horizontal double ellipsoidal reflector composed of two reflecting surface units joined horizontally in opposing relation to each other, each of the two reflecting surface units being obtained by cutting, radially around a center axis of said light source, a portion from a spheroid having a first focal point located on said center axis and adjacent the said light source and a second focal point located on a line passing through said first focal point and tilted appropriately from said center axis such that the cut portion spans, around the center axis, a range of 5.degree. to 9.degree. in either vertical direction from a horizontal line; andaspheric lenses provided to correspond to said respective second focal points of the reflecting surface units of said ellipsoidal reflector and converge reflected light beams from the respective reflecting surface units, each of the aspheric lenses having an optical axis nearly parallel to said center axis.