公开(公告)号：WO2017217800A1

公开(公告)日：2017-12-21

申请号：PCT/KR2017/006298

申请日：2017-06-16

Applicant: LG ELECTRONICS INC.

Inventor： LIM, Jaehyuk ,  LEE, Seungchan ,  HWANG, Kwangsuk

IPC: G02B26/10 ,  G02B27/14 ,  H01S5/40 ,  G03B21/06

CPC classification number: G02B27/0018 ,  G02B1/11 ,  G02B26/085 ,  G02B26/101 ,  G02B27/0006 ,  G02B27/1033 ,  G02B27/104 ,  G02B27/141 ,  G02B27/283 ,  H01S5/4093 ,  H04N9/3129 ,  H04N9/3161 ,  H04N9/3167

Abstract: A mems scanner package and a scanning projector including the same are disclosed. The MEMS scanner package includes a MEMS scanner including a mirror surface for reflecting light, a magnet disposed behind the MEMS scanner, a lower case having an accommodation space formed therein to accommodate the magnet, an upper case having an opening formed therein to pass light, reflected from the MEMS scanner, therethrough, and a transparent cover unit for covering the opening. The transparent cover unit is embodied as a transparent member, and is coupled to the upper case while being inclined at a predetermined inclination angle with respect to the MEMS scanner.

Abstract translation: 公开了一种mems扫描仪组件和包括该组件的扫描投影仪。 MEMS扫描仪封装包括：MEMS扫描仪，其包括用于反射光的镜面;磁体，其设置在MEMS扫描仪后面;下壳，其中形成有容纳空间以容纳磁体;上壳，其中形成有开口以传递光; 从MEMS扫描仪反射，穿过其中，以及用于覆盖开口的透明盖单元。 透明盖单元被实施为透明构件，并且在相对于MEMS扫描仪以预定倾斜角度倾斜的同时耦合到上壳体。

公开(公告)号：EP4550023A1

公开(公告)日：2025-05-07

申请号：EP22942856.0

申请日：2022-11-18

Applicant: LG Electronics Inc.

Inventor： KWEON, Ohjin ,  LEE, Sungkeun ,  HWANG, Kwangsuk ,  KIM, Dongwook

IPC: G02B27/01 ,  G02B26/08 ,  G02F1/13357 ,  G02B1/04

Abstract: An image generation device having a Fresnel lens, according to the present embodiment, comprises: a light source; a display element spaced apart from the light source; a plurality of lenses arranged between the light source and the display element; and a prism sheet arranged between the plurality of lenses and the display element, wherein the plurality of lenses comprise a Fresnel lens having, on one surface thereof, a plurality of oval grooves formed as concentric circles, the Fresnel lens can adjust the path of light between the light source and the display element, the one surface of the Fresnel lens has the plurality of oval grooves formed as concentric circles, the Fresnel lens has a first curvature in a first direction and a second curvature in a second direction, the first direction and the second direction are orthogonal to each other, and the first curvature and the second curvature can be different.