公开(公告)号：US09759608B2

公开(公告)日：2017-09-12

申请号：US14760256

申请日：2014-10-13

Applicant: ANI. Co. Ltd.

Inventor： Byung Jun Oh ,  Kyu Ho Lee ,  Kyu Seok Kim ,  Sun Ho Cho

IPC: G01N21/25 ,  G01J3/51 ,  G01J3/52 ,  G01N21/27 ,  G01J1/16 ,  G01J3/50 ,  G01J1/44

CPC classification number: G01J3/51 ,  G01J1/1626 ,  G01J3/50 ,  G01J3/506 ,  G01J3/524 ,  G01J2001/444 ,  G01N21/274

Abstract: A color measuring device includes a color difference meter module. The color difference meter module includes: a main detecting unit having an optical detecting unit configured to receive light introduced from an incident lens to generate a first current depending on a color, a first measuring unit configured to measure the first current, a sub-detecting unit having a dark detecting unit disposed adjacent to the main detecting unit and blocking the light to generate a second current in a dark state, a second measuring unit configured to measure the second current, a leakage measuring unit including a charging unit provided in the second measuring unit and charged with a predetermined set current, and measures a third current leaking from the charging unit, and a control unit that corrects the first current by reflecting the second current and the third current.