US 7,506,455 B2
Metrology instruments
Stephen Paul Hunter, Bristol (United Kingdom); Hugo George Derrick, Bristol (United Kingdom); and David Roberts McMurtry, Dursley (United Kingdom)
Assigned to Renishaw PLC, Gloucestershire (United Kingdom)
Appl. No. 10/576,026
PCT Filed Oct. 21, 2004, PCT No. PCT/GB2004/004489
§ 371(c)(1), (2), (4) Date Apr. 17, 2006,
PCT Pub. No. WO2004/004489, PCT Pub. Date May 12, 2005.
Claims priority of application No. 0324519.8 (GB), filed on Oct. 21, 2003.
Prior Publication US 2007/0163137 A1, Jul. 19, 2007
Int. Cl. G12B 21/24 (2006.01); G01B 5/00 (2006.01); G01B 5/12 (2006.01)
U.S. Cl. 33—704  [33/556] 24 Claims
OG exemplary drawing
 
1. A metrology instrument for mounting on a coordinate position apparatus, the metrology instrument being at least partially constructed from at least one sheet of thermally stable metallic material which is folded to form a three dimensional structure, the at least one sheet of thermally stable material being utilised in the metrology loop of the metrology instrument.