公开(公告)号：US11090546B2

公开(公告)日：2021-08-17

申请号：US16310063

申请日：2017-06-09

Applicant: Jin Woo Oh

Inventor： Jin Woo Oh

IPC: A63B71/06 ,  G01B11/14 ,  G01C9/06 ,  A63B69/36 ,  G01D21/02 ,  H01S5/026 ,  A63B102/32

Abstract: A measurement device (100) for a golf course green comprises: a distance measurement unit (30) having a pair of laser transmitter/receivers (32) for emitting a pair of laser beams (L; L1, L2), for distance measurement, outwardly at a predetermined emission angle with respect to the forward direction (CEN); a control unit (50) for generating hole-cup position information and hole-cup gradient information from an arithmetic operation of data on the distance measured by the pair of laser transmitter/receivers (32) of the distance measurement unit (30) and data on the emission angle; and an output unit (60) provided outside a casing (10) so as to output the hole-cup position information and hole-cup gradient information generated by the control unit (50).

公开(公告)号：US09874442B2

公开(公告)日：2018-01-23

申请号：US14896543

申请日：2014-03-27

Applicant: Jin Woo Oh

Inventor： Jin Woo Oh

IPC: G01C9/12 ,  A63B69/36 ,  A63B71/06 ,  A63B57/00 ,  G02B25/00 ,  A63B102/32

CPC classification number: G01C9/12 ,  A63B57/00 ,  A63B69/3676 ,  A63B71/06 ,  A63B2102/32 ,  A63B2209/08 ,  A63B2210/50 ,  A63B2210/58 ,  G02B25/002

Abstract: A device for measuring an inclination of a green in a golf course. The device includes: a rotation member (200) having a weight member (210) provided eccentrically relative to a central axis of the rotation member such that the rotation member (200) freely rotates around a rotation shaft (220), the rotation member (200) having horizontal and vertical measurement lines; a first casing (110) having an accommodation space (112); and a second casing (120) fitted over the first casing (110), the second casing (120) having first rotation graduations, a horizontal judge line (h) and a vertical judge line (v), wherein the rotation member (200) comes into close contact with both the first casing (110) and the second casing (120), and then is stopped by a pressure generated between the first and second casings or by simultaneously pressing both a flange (224) of the rotation shaft and the first casing (110).