Title:
傾斜検出装置
Document Type and Number:
Japanese Patent JP4653898
Kind Code:
B2
Abstract:
A tilt detecting device for detecting tilt by a reflection light from a free liquid surface (6a), comprising a photodetection element (11), a liquid member (6) for forming the free liquid surface (6a), a fixed reflection member (21) fixed on a structural member, a free liquid surface light projecting system (8) for projecting a light toward the liquid member (6), a fixed reflection member light projecting system (24) for projecting a light toward the fixed reflection member, a photodetection optical system (12) for guiding the reflection light from the free liquid surface (6a) of the liquid member (6) and a reflection light from the fixed reflection member (21) toward the photodetection element (11), and an arithmetic processing unit (13) for calculating deviation based on two reflection images received by the photodetection element (11).
Inventors:
Fumio Otomo
Junichi Furubira
Junichi Furubira
Application Number:
JP2001094003A
Publication Date:
March 16, 2011
Filing Date:
March 28, 2001
Export Citation:
Assignee:
Topcon Co., Ltd.
International Classes:
G01C9/20; G01C9/06; G01C15/00
Domestic Patent References:
| JP5256647A | ||||
| JP62274211A | ||||
| JP11118482A | ||||
| JP2000105119A | ||||
| JP58099712A |
Attorney, Agent or Firm:
Shoji Miyoshi