公开(公告)号：US20180054674A1

公开(公告)日：2018-02-22

申请号：US15369553

申请日：2016-12-05

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Sung Gyoo CHOI ,  Sung Uk CHOI ,  Se Min MOON ,  Young Key KIM ,  Ki Ho JANG

IPC: H04R1/46 ,  G01N3/06

CPC classification number: H04R1/46 ,  G01L1/00 ,  G01N3/06 ,  G01N2203/0062 ,  G01N2203/0658 ,  H04R3/00 ,  H04R2410/00

Abstract: A portable noise measuring device includes: a head part disposed at a front end of a body part and applying a pressure to an external object; a microphone disposed inside the body part and measuring noise; and an output part mounted on an outside surface of the body part and displaying a level of the noise measured by the microphone.

公开(公告)号：US20160377260A1

公开(公告)日：2016-12-29

申请号：US14960161

申请日：2015-12-04

Applicant: Hyundai Motor Company

Inventor： Sung Uk CHOI

IPC: F21V7/00 ,  F21V7/22 ,  F21K99/00

CPC classification number: F21S43/31 ,  F21S43/14

Abstract: A flat lamp structure may include a housing; a module in which at least one LED is disposed on a substrate; a reflector which reflects light emitted from the LED to the outside thereof; an inner lens which is disposed in front of the reflector with a predetermined interval to diffuse light emitted from the LED; and an outer lens which is disposed outside the inner lens and coupled to the housing, wherein the reflector has a first reflector part, a second reflector part, and a third reflector part having different optical properties and the first and second reflector parts have a specular reflection characteristic and the third reflector part has a Lambertian reflection characteristic, and reflects the light in all directions with the uniform brightness regardless of a direction to a diffuser surface to form a light emission surface.

Abstract translation: 扁平灯结构可以包括壳体; 模块，其中至少一个LED设置在基板上; 反射器，其将从LED发射的光反射到其外部; 内透镜，其以预定间隔设置在反射器的前面，以漫射从LED发射的光; 以及外透镜，其设置在所述内透镜的外部并且联接到所述壳体，其中所述反射器具有第一反射器部分，第二反射器部分和具有不同光学特性的第三反射器部分，并且所述第一和第二反射器部分具有镜面 反射特性和第三反射器部分具有朗伯反射特性，并且以均匀的亮度反射所有方向的光，而与漫射器表面的方向无关，以形成发光表面。