OPTICAL PICK-UP OF OPTICAL DISC DEVICE

The pick-up device has a bobbin including an optical system for minimizing the size of the pick-up device, and prevents misaligning of the optical system on the optical axis when object lens is moving. The device comprises an integrated optical system having a laser diode for scanning laser and a re...

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Bibliographic Details
Main Author LEE, SANG - UN
Format Patent
LanguageEnglish
Korean
Published 08.10.1993
Edition5
Subjects
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:The pick-up device has a bobbin including an optical system for minimizing the size of the pick-up device, and prevents misaligning of the optical system on the optical axis when object lens is moving. The device comprises an integrated optical system having a laser diode for scanning laser and a receiving diode for receiving beam reflected from the disc; a diffraction grid for diffracting laser beam scanned from the optical system; a beam splitter for reflecting and transmitting beam passing through the diffraction grid.
Bibliography:Application Number: KR19910006236