公开(公告)号：US20190120759A1

公开(公告)日：2019-04-25

申请号：US16229356

申请日：2018-12-21

Applicant: DeeDiim Sensors Inc.

Inventor： Jang-Il SER

IPC: G01N21/47 ,  G01N21/55

CPC classification number: G01N21/4738 ,  G01N21/474 ,  G01N21/55 ,  G01N2021/4716 ,  G01N2021/4733 ,  G01N2021/556 ,  G01N2201/0626 ,  G01N2201/0634 ,  G01N2201/0638 ,  G01N2201/0655

Abstract: An illumination system includes a measurement stage on which a measurement target is located, a light-providing part having illumination sections providing multi-directional incident lights to the measurement target, a light-receiving part receiving single-directional reflection lights reflected by the measurement target according to the multi-directional incident lights, and a processing part that performs acquiring a first distribution of intensities the single-directional reflection lights with respect to the multi-directional incident lights, acquiring, from the first distribution, a second distribution of intensities of multi-directional reflections lights with respect to a single-directional incident light, and determining material of the measurement target based on parameters of the second distribution. A method of recognizing material using the illumination system and a computer readable non-transitory recording medium recording a program embodying the method are provided.