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Patent Searching and Data


Title:
ELECTRONIC DEVICE INCLUDING OPTICAL SENSOR USING FRESNEL LENS
Document Type and Number:
WIPO Patent Application WO/2019/194508
Kind Code:
A1
Abstract:
An electronic device is provided. The electronic device includes a housing that includes a sensing surface, a light emitting unit that outputs a light through the sensing surface, a light receiving unit that collects a reflection light reflected from an external object in contact with the sensing surface, after the light is output from the light emitting unit, and a first Fresnel lens that is disposed between the light receiving unit and the sensing surface. A first surface of the first Fresnel lens total reflects the reflection light introduced in a direction perpendicular to the sensing surface, and a second surface of the first Fresnel lens refracts the total reflected light so as to be introduced to the light receiving unit.

Inventors:
CHUNG, Sohyun (129 Samsung-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16677, KR)
LEE, Yongjin (129 Samsung-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16677, KR)
KIM, Younghyun (129 Samsung-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16677, KR)
YUN, Inho (129 Samsung-ro, Yeongtong-gu,Suwon-si, Gyeonggi-do, 16677, KR)
Application Number:
KR2019/003817
Publication Date:
October 10, 2019
Filing Date:
April 01, 2019
Export Citation:
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Assignee:
SAMSUNG ELECTRONICS CO., LTD. (129 Samsung-ro, Yeongtong-guSuwon-si, Gyeonggi-do, 16677, KR)
International Classes:
G02B3/08; G01J1/04; G01J3/02; G02B1/04; G02B19/00
Foreign References:
US20080297803A12008-12-04
JP2007155575A2007-06-21
KR20010073935A2001-08-03
US20090032689A12009-02-05
US20170325744A12017-11-16
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (11th Floor, 343 Gangnam-daero,Seocho-gu, Seoul, 06626, KR)
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