US 12,435,978 B2
Surveying instrument
Masaho Kikuchi, Tokyo (JP); and Akinobu Sugiura, Tokyo (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Mar. 23, 2023, as Appl. No. 18/125,609.
Claims priority of application No. 2022-057727 (JP), filed on Mar. 30, 2022.
Prior Publication US 2023/0314135 A1, Oct. 5, 2023
Int. Cl. G01C 15/00 (2006.01); G01C 5/00 (2006.01)
CPC G01C 15/006 (2013.01) [G01C 5/00 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body, wherein
an irradiation shape of the spotlight is a toric shape.