Title:
【発明の名称】合焦位置検出装置
Document Type and Number:
Japanese Patent JP3065699
Kind Code:
B2
Abstract:
PURPOSE:To provide a focusing position detection device which can execute accurate control without adding new optical parts. CONSTITUTION:In the focusing position detection device provided with an image forming optical system 1 and two image sensors 3 and 3' which respectively form the images of two objects near the scheduled image forming surface of the optical system 1, the sensors 3 and 3' are constituted so that the ratio of the size and the pitch of a picture element at the light receiving parts of the respective sensors 3 and 3' which photograph the image of two objects is made constant between the sensors.
More Like This:
| JP6740666 | Image sensor, focus detector and image sensor |
| JP5359636 | Focus detector |
| WO/2008/146486 | CAMERA SYSTEM AND CAMERA BODY |
Inventors:
Genichi Yamana
Koichi Konishi
Nobuyuki Nagasawa
Kouki Takahama
Koichi Konishi
Nobuyuki Nagasawa
Kouki Takahama
Application Number:
JP7780991A
Publication Date:
July 17, 2000
Filing Date:
April 10, 1991
Export Citation:
Assignee:
Olympus Optical Co., Ltd.
International Classes:
G02B7/34; G02B7/28; G02B7/38; H04N5/232; H04N5/335; H04N5/378; (IPC1-7): G02B7/38; G02B7/28
Domestic Patent References:
| JP5892908A | ||||
| JP5994720A | ||||
| JP4310265B1 |
Attorney, Agent or Firm:
Takehiko Suzue
Previous Patent: 磁気記録方法
Next Patent: HAND GRIPPER OF ROBOT AND APPARATUS FOR AUTOMATICALLY CHANGING GRIPPER
Next Patent: HAND GRIPPER OF ROBOT AND APPARATUS FOR AUTOMATICALLY CHANGING GRIPPER