公开(公告)号：US10161865B2

公开(公告)日：2018-12-25

申请号：US15430916

申请日：2017-02-13

Applicant: DeeDiim Sensors Inc.

Inventor： Jang-Il Ser

IPC: G01N21/47

Abstract: An illumination system for recognizing material includes a measurement stage, a light-providing part, a light-receiving part, and a processing part. The measurement stage is upwardly open and the measurement target is located on the measurement stage. The light-providing part includes a plurality of illumination sections providing incident lights to the measurement target, and provides multi-directional incident lights to the measurement target from multiple upper directions at which the measurement stage is open. The light-receiving part receives single-directional reflection lights reflected by the measurement target according to the multi-directional incident lights provided by the light-providing part. The processing part acquires a multi-directional intensity distribution of multi-directional reflection lights reflected by the measurement target according to a single-directional incident light from the single-directional reflection lights reflected by the measurement target according to the multi-directional incident lights, and determines material of the measurement target from the multi-directional intensity distribution of reflection lights. Thus, material of an object may be easily and accurately known at a low cost.

公开(公告)号：US11026313B1

公开(公告)日：2021-06-01

申请号：US16995277

申请日：2020-08-17

Applicant: DeeDiim Sensors Inc.

Inventor： Jang-Il Ser

IPC: H05B47/105 ,  F21V23/00 ,  G01N21/01 ,  F21Y115/10

Abstract: An illumination system includes a measurement stage, a light-providing part, a light-receiving part, and a processing part. The light-providing part includes light sources arranged in a dome shape, which irradiate incident lights to a measurement target on the measurement stage. The light-receiving part acquires reflection lights. The processing part controls the light sources to be turned on/off according to a dome-shaped sine wave pattern. The processing part controls the light sources to be sequentially turned on/off by shifting N times according to the dome-shaped sine wave pattern for a specific measurement position of the measurement target, and calculates a phase at the specific measurement position, an average of intensities of N reflection lights, and a visibility of N reflection lights, from intensities of N reflection lights. Thus, material of the measurement target may be easily determined.

公开(公告)号：US10451547B2

公开(公告)日：2019-10-22

申请号：US16229356

申请日：2018-12-21

Applicant: DeeDiim Sensors Inc.

Inventor： Jang-Il Ser

IPC: G01N21/47 ,  G01N21/55

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.

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.