Optical head

Details Optical head Optical head

G - Physics

11

B

352/32.4

G11B 7/00 (2006.01) G11B 7/135 (2006.01)

Patent

CA 2036412

ABSTRACT OF THE DISCLOSURE A separate-type optical head having a fixed unit equip- ped with a light source and a photo-detecting system separ- ated from a movable unit equipped with a light reflecting system which reflects and converts a light from the light source to be a light incident upon an optical disk perpend- icularly and returns the reflecting light from the optical disk to the fixed unit, wherein a prism having reflecting surfaces being at angles of 45° to each other is arranged for the reflecting system in the movable unit for reflecting the light from the light source so as to a light incident upon the optical disk perpendicularly even in the case where the movable unit inclines to the optical disk.

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