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公开(公告)号：US20240302268A1
公开(公告)日：2024-09-12
申请号：US18664157
申请日：2024-05-14
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Junghui CHOI , Keunbum LEE , Changwoo JUNG , Buyoun LEE , Changheon LEE , Sangki CHO
CPC classification number: G01N21/29 , G01N33/0047 , G01N2021/216 , G01N2021/8578 , G01N2201/0221
Abstract: An air quality measuring device, according to one embodiment of the present disclosure, includes a top case, a bottom case provided below the top case, a circular light guide unit which is disposed between the top case and the bottom case. The air quality measuring device has an outer portion and an inner portion, and includes a coupling boss positioned around the outer portion so as to be coupled to the top case or the bottom case. The air quality measuring device also includes a light source unit positioned on the inner portion, where the light guide unit has a light exit surface formed on the outer portion and may include a rib which is positioned around the outer portion and protrudes from one surface thereof.
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公开(公告)号：US20230003366A1
公开(公告)日：2023-01-05
申请号：US17730866
申请日：2022-04-27
Applicant: Samsung Electronics Co., Ltd.
Inventor： Eunha CHOI , Jeonghan SONG , Keunbum LEE , Seungjae LEE
Abstract: The present disclosure provides a lighting device including a first lighting unit including a plurality of first light sources arranged on a first flat or curved surface, and configured to implement lighting of a first illuminance and of a first color, a second lighting unit including a plurality of second light sources arranged on a second flat or curved surface at least partially inclined with respect to the first lighting unit, the second lighting unit surrounding at least a part of the first lighting unit, and configured to implement lighting of a second illuminance at least partially different from the first illuminance and of a second color, at least one opening formed to penetrate through the first lighting unit, and at least one third lighting unit including a plurality of third light sources arranged on a third flat or curved surface, and configured to implement lighting of a third illuminance higher than the first illuminance and of a third color through the opening. The second lighting unit may be configured to implement the lighting of the second illuminance and the second color in conjunction with the third lighting unit.
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公开(公告)号：US20210271005A1
公开(公告)日：2021-09-02
申请号：US17250380
申请日：2019-06-28
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seungjae LEE , Yonghun KWON , Chunsoon PARK , Keunbum LEE , Sungho JUN
Abstract: A diffusion lens includes a first lens surface having a concave curved shape such that light generated from a light source is incident on the first lens surface, a second lens surface having a convex curved shape such that part of the light incident on the first lens surface is output from the second lens surface, a side surface extending from a periphery of the second lens surface in a vertical direction of the diffusion lens such that part of the rest of the light incident on the first lens surface is output from the side surface, and a bottom surface extending from a periphery of the first lens surface in a horizontal direction of the diffusion lens to meet a periphery of the side surface. Rates of change of the first lens surface and the second lens surface have the same sign, and a pattern in which arbitrary shapes are irregularly disposed or a pattern in which specified shapes are regularly or irregularly disposed is formed on the side surface and the bottom surface to diffuse the light passing through the side surface and diffuse the light reflected by the bottom surface. Besides, it may be permissible to prepare various other embodiments speculated through the specification.
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