Title:
回転レーザ装置の受光装置
Document Type and Number:
Japanese Patent JP4282432
Kind Code:
B2
Abstract:
A photodetection device for a rotary laser system for projecting at least two fan-shaped beams tilted at a known angle with respect to a horizontal plane and having a known spreading angle, comprising at least three photodetectors arranged in a known relationship.
Inventors:
Fumio Otomo
Kazuki Daibutsu
Kunihiro Hayashi
Kazuki Daibutsu
Kunihiro Hayashi
Application Number:
JP2003353826A
Publication Date:
June 24, 2009
Filing Date:
October 14, 2003
Export Citation:
Assignee:
Topcon Co., Ltd.
International Classes:
G01C9/06; G01C15/00; G01B11/26; H01J40/14
Domestic Patent References:
| JP2003214852A | ||||
| JP2003214850A | ||||
| JP2002039755A | ||||
| JP9292218A | ||||
| JP6229715A | ||||
| JP10089959A |
Attorney, Agent or Firm:
Shoji Miyoshi
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