Patent ID: 7476007

Claim:
A light source lens comprising a circular lens mount, and a lens engaged with the lens mount; the circular lens mount being provided along an outer periphery with an upright flange having a predetermined height, so that a shallow concave recess is defined on the annular lens mount within the flange; and the shallow concave recess being formed at a center with a square opening, via which a light source may be projected to the lens; and the lens including a first spherical portion and a second spherical portion slightly raised from a top center of the first spherical portion by a predetermined distance, so that the first and the second spherical portion have different curvatures to provide two refraction areas producing different refraction angles; and a bottom of the lens being densely provided with a plurality of irregularly arranged grooves to form an uneven bottom surface; whereby when the light source lens is mounted on a light emitting diode (LED) lamp in front of an LED, light emitted from the LED and passed through the lens is diffused by the first spherical portion but concentrated by the second spherical portion to become more even without forming a halo around an illuminated area; and, with the uneven and irregular grooves densely provided at the bottom surface of the lens, the light from the LED may be scattered at more different angles to create softer lighting effect.