公开(公告)号：JPH05197983A

公开(公告)日：1993-08-06

申请号：JP28278392

申请日：1992-10-21

Applicant: SONY CORP

Inventor： ISHIDA TOMOYUKI ,  AIDA YOSHIMASA ,  OIKAMI HIROSHI

IPC: G11B7/09

Abstract: PURPOSE:To effectively reduce the vibration of an objective lens by providing a movable base member, a supporting member consisting of an attaching part providing an elastic supporting part and an elastic buffer member controlling the rock elastically. CONSTITUTION:In a two axes driving unit 20 operating drive for focus control and drive for tracking control, a slide base 18 is guided by a guide shaft and moved to the radial direction of a disk. At this time, when the external force of the radial direction of the disk is applied through the base 18, the movable part of an elastic linking member 40 becomes a state so as to rock to the radial direction of the disk by regarding the elastic supporting part 44 of the attaching part 41 in the member 40 as a rocking falcrum accompanying a bobbin member 48 and the objective lens 6. But, such vibration is controlled by the elastic buffer member 60 engaging with the supporting part 44 elastically and thus, the vibration in the objective lens 6 is suppressed.

公开(公告)号：JPH03108391A

公开(公告)日：1991-05-08

申请号：JP24619889

申请日：1989-09-21

Applicant: SONY CORP

Inventor： MATSUDA OSAMU ,  OIKAMI HIROSHI ,  AIDA YOSHIMASA

IPC: H01S5/00

Abstract: PURPOSE:To reduce a stray light fraction and also stroke between an optical input and an output by mounting an optical integrated circuit on a substrate disposed to traverse the optical path of the optical integrated circuit, and providing optically transparent holes through the substrate at locations corresponding to the optical path. CONSTITUTION:An optical integrated circuit 72 is mounted on a substrate 73 disposed to traverse an optical path of the integrated circuit, and an optical through-hole 79 is provided at a location in the substrate 73 corresponding to the optical path. An optical input to and an optical output from the optical integrated circuit 72 selectively pass through the transparent hole 79 through the substrate 73. Accordingly, a stray light fraction other than the input light is blocked by the substrate 73 and the input signal light passing only through the transparent hole 79 can be prevented from being mixed with the stray light. Further, any stroke between the optical input and output can be reduced.