Optical pick up apparatus

A laser driving integrated circuit ( 8 ) to drive a laser element is mounted in an optical housing, and a wiring pattern of an actuator line ( 6 ) for supplying an actuator ( 1 ) with drive signals to drive the actuator ( 1 ) through a relay circuit board and a wiring pattern of a laser drive line (...

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Bibliographic Details
Main Author NEGISHI HIROYUKI,SAIKAWA HIDEYUKI,ITO TOSHIYUKI
Format Patent
LanguageEnglish
Published 14.03.2007
Subjects
CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PHYSICS
PRINTED CIRCUITS
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Summary:A laser driving integrated circuit ( 8 ) to drive a laser element is mounted in an optical housing, and a wiring pattern of an actuator line ( 6 ) for supplying an actuator ( 1 ) with drive signals to drive the actuator ( 1 ) through a relay circuit board and a wiring pattern of a laser drive line ( 5 ) for supplying drive signals from the laser driving integrated circuit ( 8 ) to the laser element are formed on the same flexible wiring board ( 4 ), and, when the flexible wiring board ( 4 ) is folded, a shielding part ( 7 ) connected to the ground line is arranged to intervene between the overlapping wiring patterns of the actuator line ( 6 ) and the laser drive line ( 5 ) of the flexible wiring board ( 4 ).
Bibliography:Application Number: CN20031023322