Optical head using semiconductor laser array as light source

Details Optical head using semiconductor laser array as light source Optical head using semiconductor laser array as light source

1992-10-22

1994-02-22

Arnold, Bruce Y.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

369110, G02B 530

Patent

active

052893138

ABSTRACT:
An optical head using a semiconductor laser array as a light source comprises a semiconductor laser array in which a plurality of semiconductor lasers are linearly arrayed, a collimator lens, an objective lens and a beam shaping prism system. The beam shaping prism system is arranged between the collimator lens and the objective lens to convert a beam width of a beam emerged from the collimator lens. The junction surfaces of the semiconductor lasers are parallel with an array direction. A plane defined by incident and emerging beams on and from the beam shaping prism system is parallel with or overlapping the array direction of the semiconductor lasers.

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