Patent Number:
6,167,003
Title:
Optical disc apparatus for installing two types of optical discs
Abstract:
An optical disc apparatus has a first objective lens for a first optical disc such as a CD and a second objective lens for a second optical disc such as a DVD. The first and second objective lenses are mounted on a base that is transferrable in a direction of radii of the first and second optical discs coaxially installed in the optical disc apparatus. A first center of the first objective lens is located on a first line passing through a center of the first optical disc. On the other hand, a second center of the second objective lens is located on a second line orthogonal to the first line. The first and centers are separated from each other by a predetermined distance.
Inventors:
Haneji; Yasuo (Yokosuka, JP), Yoshida; Akira (Fujisawa, JP), Mori; Yasuhiro (Yokohama, JP), Yamaguchi; Yasuhiro (Yokohama, JP)
Assignee:
Victor Company of Japan, Ltd.
International Classification:
G11B 7/09 (20060101); G11B 7/12 (20060101); G11B 7/00 (20060101); G11B 7/125 (20060101); G11B 7/095 (20060101); G11B 7/135 (20060101); G11B 007/085 ()
Expiration Date:
12/26/2017