Optical head.,申请号EP19910118567-传众专利搜索

Optical head.

申请公布号：EP0483830(A1)

申请号：EP19910118567

申请日期：1991.10.30

申请公布日期：1992.05.06

申请人：

KABUSHIKI KAISHA TOSHIBA;TOSHIBA INTELLIGENT TECHNOLOGY LTD.

发明人：KASAHARA, AKIHIRO, INTELLECTUAL PROPERTY DIV.;YAMASAKI, HIDEO, INTELLECTUAL PROPERTY DIV.;YOSHIZAWA, TAKASHI, INTELLECTUAL PROPERTY DIV.;ISHIKA, SOU, INTELLECTUAL PROPERTY DIV.

分类号：G11B7/08;G11B7/12

主分类号：G11B7/08

摘要：<p>An optical head comprises a laser beam source (30), a photo-detector device (10) for receiving a laser beam emitted from the laser beam source and reflected at a data recording medium, an optical system (40) for sending the laser beam from the data recording medium to the photo-detector device, and a base member (70) for fixing the photo-detector device and the optical system (40). The photo-detector device has a photo-detector element (11), a mount member (12) on which the photo-detector element (11) is mounted, a block (13) for fixing one end of the mount member (12), a spring member (22) for applying elastic force to the mount member (12), a screw member (16) for moving the photo-detector element (11) along one direction against elastic force of the spring member (22) and fixing the element (11) to an arbitrary position (17), and a hinge portion formed in the fixing end of the mount member (12). <IMAGE> <IMAGE></p>