OPTICAL PICKUP AND OPTICAL DISK DEVICE

PROBLEM TO BE SOLVED: To provide an optical pickup capable of evading the positional shift of an optical component such as a condenser lens even when ambient temperature is changed. SOLUTION: The optical component such as the condenser lens 9 is inserted into the hole 13 of a case of the optical pic...

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Bibliographic Details
Main Authors FUKUDA KAZUYUKI, KUROGUCHI KATSUMI, SATO YOSHIHIRO, MORIYAMA TAKENORI
Format Patent
LanguageEnglish
Published 27.12.2007
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide an optical pickup capable of evading the positional shift of an optical component such as a condenser lens even when ambient temperature is changed. SOLUTION: The optical component such as the condenser lens 9 is inserted into the hole 13 of a case of the optical pickup, and bonded with an adhesive 15. A groove 17a is formed on the internal surface of the hole 13 of the case and the adhesive 15 enters the groove 17a. A projection portion is formed on the flank of the optical component, and a recessed portion corresponding to the projection portion of the optical component is formed on the internal surface of the hole 13 of the case. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060163335