专利名称：Method and device for adjusting an optical
axis angle in an optical disk device
发明人：Akihiro Fukasawa,Norio Yamashita申请号：US10051089申请日：20020122公开号：US06563777B2公开日：20030513
专利附图：
摘要：An optical axis angle adjusting device is provided, which can adjust the opticalaxis angle, which can prevent sound skipping or noise in the image of the opticalreproduction device even when the disk has certain surface undulation. In the adjusting
device, an adjustment disk is inclined relative to the turn table. Rotation phases of thedisk are detected, and incident angle is detected at the respective rotation phases. Theoptical axis angle is adjusted so that the incident angles at the respective phases areidentical with each other. Because the disk is inclined, the incident angle can be detectedaccurately, and the optical axis adjustment can be achieved accurately.
申请人：MITSUBISHI DENKI KABUSHIKI KAISHA
代理机构：Birch, Stewart, Kolasch & Birch, LLP
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