Title:
スケール目盛読取装置
Document Type and Number:
Japanese Patent JP2008503747
Kind Code:
A
Abstract:
A scale for a scale reading apparatus has a scale track with scale marks which form an incremental scale. The scale also has a set of reference marks. The scale has at least one additional track and different combinations of markers in the at least one additional track have different functions, for example reference mark enablers and right and left limit switches.
Inventors:
Colin Keith Howley
Application Number:
JP2007517446A
Publication Date:
February 07, 2008
Filing Date:
June 21, 2005
Export Citation:
Assignee:
RENISHAW PUBLIC LIMITED COMPANY
International Classes:
G01D5/244; G01D5/245
Domestic Patent References:
| JPH01151210A | 1989-06-14 | |||
| JPH07311007A | 1995-11-28 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe