公开(公告)号：US09835309B2

公开(公告)日：2017-12-05

申请号：US14875389

申请日：2015-10-05

Applicant: LG INNOTEK CO., LTD.

Inventor： Sung Wook Cho

IPC: F21V5/04 ,  G02B3/08 ,  F21V5/08 ,  G02B19/00 ,  F21Y115/10

CPC classification number: F21V5/08 ,  F21V5/04 ,  F21V5/045 ,  F21Y2115/10 ,  G02B19/0028 ,  G02B19/0061

Abstract: A lens including a first body having a first cavity, a second body in surface contact with the first body, a plurality of protrusions disposed on the surface of the second body and overlapping the first body in the vertical direction, and a plurality of patterns formed on the surface of the protrusion closest to the first body. At least one of the patterns includes a first inclined part formed in a first direction and a second inclined part formed in a second direction opposite the first direction.

公开(公告)号：US09366569B2

公开(公告)日：2016-06-14

申请号：US14189089

申请日：2014-02-25

Applicant: LG INNOTEK CO., LTD.

Inventor： Sung Wook Cho ,  Ki Hyun Kim ,  Eun Hwa Kim

IPC: G01J1/44 ,  F21K99/00 ,  G01J1/42

CPC classification number: G01J1/44 ,  F21K9/20 ,  G01J1/42 ,  G01J2001/4252

Abstract: Embodiments provide a method of evaluating luminance of a light source, including acquiring first data including a plurality of luminance values by measuring luminance of the light source, converting the first data into second data corresponding to a plurality of unit cells, acquiring a moving average of the second data, and acquiring a ripple factor. The ripple factor is represented by (Draw−Ma)/Ma, where Draw is the second data and Ma is the moving average.

Abstract translation: 实施例提供了一种评估光源的亮度的方法，包括通过测量光源的亮度来获取包括多个亮度值的第一数据，将第一数据转换成对应于多个单位单元的第二数据，获取移动平均值 第二个数据，并获取纹波因子。 纹波因子由（Draw-Ma）/ Ma表示，其中Draw是第二数据，Ma是移动平均线。