Samsung Electronics Co., Ltd.

Sohyun Chung

Taeho Kim

Minji Kim

Younghyun Kim

Wonseok Lee

Yongjin Lee

Inho Yun

Hongji Lee

Seunggoo Lee

Gitae Mun

Jongin Park

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.

Electronic device including optical sensor using Fresnel lens

Growing community of inventors

Gyeonggi-do, South Korea

Sohyun Chung