公开(公告)号：US20170215670A1

公开(公告)日：2017-08-03

申请号：US15514638

申请日：2015-09-04

Applicant: EVERYBOT INC.

Inventor： Joo Pyo HEO ,  Seong Gyun KIM ,  Ki Yong LEE ,  Ji Hun JUNG

IPC: A47L9/28 ,  G01N21/55 ,  G01N21/94 ,  A47L11/40

CPC classification number: A47L9/2815 ,  A47L9/2826 ,  A47L9/2852 ,  A47L9/2894 ,  A47L11/4011 ,  A47L2201/06 ,  G01J1/00 ,  G01J1/0403 ,  G01J1/0407 ,  G01N15/0612 ,  G01N21/4738 ,  G01N21/55 ,  G01N21/94 ,  G01N2015/0046 ,  G01N2021/0112

Abstract: Provided herein is a dust measuring apparatus. The dust measuring apparatus includes: a body; a window unit exposed to the outside through an opening part of the body, such that dust present in the outside is gathered on the window unit; a light emitting unit emitting light to the window unit; a light receiving unit receiving light reflected from the window unit; and a controlling unit measuring an amount of dust gathered on the window unit on the basis of strength of the emitted light and strength of the received light.