Patent ID: 6995912

Claim:
A condensing lens comprising: a plurality of collimator-lens portions which respectively collimate a plurality of light beams each of which is divergent; and a condensing lens portion which is integrally formed with said plurality of collimator-lens portions, and makes the plurality of light beams collimated by the plurality of collimator-lens portions converge at a common point, wherein each of said plurality of collimator-lens portions has a shape obtained by cutting an axially symmetric lens along at least one plane each being parallel to and not containing an optical axis of the axially symmetric lens so as to leave a portion of the axially symmetric lens containing the optical axis and having at least one planar end, and each adjacent pair of the plurality of collimator-lens portions are arranged so that planar ends of said each adjacent pair of the plurality of collimator-lens portions are in contact or proximity with each other.