US 12,111,156 B2
Target device and surveying system
You Sasaki, Tokyo (JP)
Assigned to Topcon Corporation, Tokyo (JP)
Appl. No. 16/982,837
Filed by Topcon Corporation, Tokyo (JP)
PCT Filed Mar. 25, 2019, PCT No. PCT/JP2019/012457
§ 371(c)(1), (2) Date Sep. 21, 2020,
PCT Pub. No. WO2019/188961, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 2018-058028 (JP), filed on Mar. 26, 2018.
Prior Publication US 2021/0055103 A1, Feb. 25, 2021
Int. Cl. G01C 15/00 (2006.01); G01C 15/06 (2006.01); G01S 17/42 (2006.01); G01S 17/66 (2006.01)
CPC G01C 15/002 (2013.01) [G01C 15/06 (2013.01); G01S 17/42 (2013.01); G01S 17/66 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A target device to be surveyed, the device comprising:
a reflector configured to reflect light incident on the reflector in a direction identical to a direction of incidence of the light, wherein the reflector comprises a bottom surface with sides;
a support part configured to support the reflector; and
a direction indicator formed on each of the sides to indicate a direction of the reflector, wherein each of the direction indicators are distinguished from one another based on appearance, and wherein
the reflector is a polyhedron prism.