公开(公告)号：US10018836B2

公开(公告)日：2018-07-10

申请号：US14710446

申请日：2015-05-12

Applicant: LEICA GEOSYSTEMS AG

Inventor： Peter Kipfer ,  Josef Lais

IPC: G02B13/06 ,  G02B27/00 ,  G01C1/02 ,  G01C15/00 ,  G01S17/02 ,  G01S17/08 ,  G01S7/481 ,  G02B5/18 ,  G02B13/18 ,  G02B23/24 ,  G02B25/00

CPC classification number: G02B27/0037 ,  G01C1/02 ,  G01C15/00 ,  G01S7/4812 ,  G01S17/023 ,  G01S17/08 ,  G02B5/1814 ,  G02B13/18 ,  G02B23/2407 ,  G02B25/001

Abstract: The invention relates to a geodetic instrument, in particular a geodetic telescope, for example for a theodolite, or geodetic overview, photogrammetry or axial camera, comprising an imaging optical system which defines an optical axis and comprises an observation beam path for imaging a target object by an eyepiece and/or on a camera sensor, for registering and/or providing an image of the sighted target object. According to the invention, the imaging optical system comprises at least two diffractive optical elements in the observation beam path.