Manufacturing method for lens holder and lens protector for use in optical pick-up device
The present invention provides a lens holder and a lens protector having little burrs and no gate marks formed an a surface thereof confronting an optical disc and a method of manufacturing the lens holder and the lens protector. The lens holder is formed in integration with a boss by injection-mold...
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| creator | TAKEO KATSUSHI GOTO KEIICHI FUKUZAWA SATORU |
| description | The present invention provides a lens holder and a lens protector having little burrs and no gate marks formed an a surface thereof confronting an optical disc and a method of manufacturing the lens holder and the lens protector. The lens holder is formed in integration with a boss by injection-molding and has a hole capable of holding an objective lens on a surface of the lens holder confronting an optical disc. The boss having a gate and a contact portion which contacts a ejector pin is formed on a peripheral side surface of the lens holder when the injection molding is performed and cut off from the lens holder after the injection molding finishes. |
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The lens holder is formed in integration with a boss by injection-molding and has a hole capable of holding an objective lens on a surface of the lens holder confronting an optical disc. 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The lens holder is formed in integration with a boss by injection-molding and has a hole capable of holding an objective lens on a surface of the lens holder confronting an optical disc. 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The lens holder is formed in integration with a boss by injection-molding and has a hole capable of holding an objective lens on a surface of the lens holder confronting an optical disc. The boss having a gate and a contact portion which contacts a ejector pin is formed on a peripheral side surface of the lens holder when the injection molding is performed and cut off from the lens holder after the injection molding finishes.</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | Manufacturing method for lens holder and lens protector for use in optical pick-up device |
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