公开(公告)号：DE69621275T2

公开(公告)日：2002-12-12

申请号：DE69621275

申请日：1996-02-21

Applicant: SONY CORP

Inventor： SABERT HENDRIK ,  DOI MASATO

IPC: G02B1/08 ,  G11B7/09 ,  G11B7/12 ,  G11B7/123 ,  G11B7/13 ,  G11B7/131 ,  G11B7/133 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/22 ,  G11B11/105 ,  H01L31/0232 ,  H01S5/00 ,  H01S5/026 ,  H01S5/042 ,  G11B11/10

Abstract: An optical apparatus that lends itself to size reduction and mass production and enables detection of a return light beam by a pre-set operation irrespective of the state of the return light. The optical apparatus has a reflecting mirror (1) arranged in the vicinity of the focal point of the return light beam obtained on reflection by an illuminated object of the outgoing light from a laser light source 3, such as a semiconductor laser, and photodiodes PD1A, PD2A, PD3A, PD1B, PD2B and PD3B, as light receiving portions, arranged facing first and second reflecting surfaces MA and MB of the reflecting mirror (1). The reflecting surfaces MA and MB are arranged for reflecting a portion of the return light, while signal detection is performed by the light receiving portions.

公开(公告)号：DE69621275D1

公开(公告)日：2002-06-27

申请号：DE69621275

申请日：1996-02-21

Applicant: SONY CORP

Inventor： SABERT HENDRIK ,  DOI MASATO

IPC: G02B1/08 ,  G11B7/09 ,  G11B7/12 ,  G11B7/123 ,  G11B7/13 ,  G11B7/131 ,  G11B7/133 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/22 ,  G11B11/105 ,  H01L31/0232 ,  H01S5/00 ,  H01S5/026 ,  H01S5/042 ,  G11B11/10

Abstract: An optical apparatus that lends itself to size reduction and mass production and enables detection of a return light beam by a pre-set operation irrespective of the state of the return light. The optical apparatus has a reflecting mirror (1) arranged in the vicinity of the focal point of the return light beam obtained on reflection by an illuminated object of the outgoing light from a laser light source 3, such as a semiconductor laser, and photodiodes PD1A, PD2A, PD3A, PD1B, PD2B and PD3B, as light receiving portions, arranged facing first and second reflecting surfaces MA and MB of the reflecting mirror (1). The reflecting surfaces MA and MB are arranged for reflecting a portion of the return light, while signal detection is performed by the light receiving portions.

公开(公告)号：SG67363A1

公开(公告)日：1999-09-21

申请号：SG1996011093

申请日：1996-11-07

Applicant: SONY CORP

Inventor： NARUI HIRONOBU ,  DOI MASATO ,  SABERT HENDRIK

IPC: C30B29/66 ,  H01L21/205 ,  H01L27/15 ,  H01L31/12 ,  H01L31/036 ,  G11B7/135

Abstract: A triangular pyramidal semiconductor structure which precisely splits light is provided by preventing an unnecessary crystal plane from growing on the boundary of side surface crystal planes of the triangular pyramidal semiconductor structure. The triangular pyramidal semiconductor structure is formed of either one of a {111} A crystal plane and a {111} B crystal plane and two {110} crystal planes.