An optical pickup lens for focusing a light beam from a laser light source on an optical information recording medium is a single lens. The optical pickup lens has two surfaces, and a surface R2 opposite to a surface R1 closer to the laser light source has a continuous shape. When the surface R2 has radii h1, h2 and h3 (h1.DELTA.sag1>.DELTA.sag2 and .DELTA.sag2<.DELTA.sag3 are satisfied.

 
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< Image forming method, apparatus and computer-readable recording medium having image forming program

< Laser converging apparatus, optical pickup device and optical disc recording/reproduction apparatus

> Electro-optic deflector

> Single-longitudinal mode laser with orthogonal-polarization traveling-wave mode

~ 00617