DEVICE FOR DRIVING OBJECTIVE LENS OF OPTICAL PICKUP

摘要

PURPOSE: A device for driving an objective lens of an optical pickup is provided to independently drive the objective lens of the optical pickup, to minutely drive the objective lens for a high-speed product, so that the reproduction and recording of an optical disk is stably performed. CONSTITUTION: A fixing and supporting part(50) installs a light source(20) and a collimator lens(30) thereon and at a sidewall of an upper part of a fixing unit(40). An objective lens(70) is driven to scan photo beam from the light source to a recording surface of an optical disk(91). A lens holder(71) arranged in a lower part of the objective lens fixes the lens. A plurality of driving coils(51) are installed on a lower surface of the fixing and supporting part. A driving member(60) has magnets(61). The magnets are installed at locations corresponding to the driving coils, and generate displacement by responding to the driving coils, to drive the objective lens in a focusing direction.