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Showing papers by "Satoshi Shimokawa published in 1998"

Patent•
Optical head unit for optical disk apparatus having both focus control and track control function

[...]

Nobuyuki Kanto1, Koichi Tezuka1, Haruhiko Izumi1, Satoshi Shimokawa1, Shingo Hamaguchi1, Akihiko Makita1, Kyoko Tadaki1, Kazushi Uno1, Goro Kawasaki1 •
Fujitsu1
01 Dec 1998
TL;DR: An optical head unit used for an optical disk apparatus is described in this article, which includes an object glass assembly for focusing a laser beam from a light source on a optical disk, an actuator movable at least in a focus control direction, a carriage for supporting the actuator and moving the actuators in a track control direction.
Abstract: An optical head unit used for an optical disk apparatus is provided The optical head unit includes an object glass assembly for focusing a laser beam from a light source on an optical disk, an actuator movable at least in a focus control direction, a carriage for supporting the actuator and moving the actuator in a track control direction, and a slider which is attached to the carriage and capable of adjusting its posture in relation to a surface of the optical disk The object glass assembly is provided with a plurality of lens units Each lens unit includes at least one lens One of the plural lens units is supported by the slider

5 citations

Patent•
Optical head unit for optical disk apparatus

[...]

Shingo Hamaguchi1, Haruhiko Izumi1, Nobuyuki Kanto1, Goro Kawasaki1, Akihiko Makita1, Satoshi Shimokawa1, Kyoko Tadaki1, Koichi Tezuka1, Kazushi Uno1 •
Fujitsu1
10 Dec 1998
TL;DR: An optical head unit used for an optical disk apparatus is described in this article, which includes an object glass assembly for focusing a laser beam from a light source on an optical disks, an actuator movable at least in a focus control direction, a carriage for supporting the actuator, and a slider attached to the carriage and capable of adjusting its posture in relation to a surface of the optical disk.
Abstract: An optical head unit used for an optical disk apparatus is provided. The optical head unit includes an object glass assembly for focusing a laser beam from a light source on an optical disk , an actuator movable at least in a focus control direction, a carriage for supporting the actuator and moving the actuator in a track control direction, and a slider which is attached to the carriage and capable of adjusting its posture in relation to a surface of the optical disk . The object glass assembly is provided with a plurality of lens units . Each lens unit includes at least one lens . One of the plural lens units is supported by the slider .

1 citations