公开(公告)号：US20240315615A1

公开(公告)日：2024-09-26

申请号：US18610147

申请日：2024-03-19

Applicant: Lextar Electronics Corporation

Inventor： Kai-Hung CHENG ,  Ku-Cheng LIN ,  Chun-Min LIN ,  Ke-Wei LIU

IPC: A61B5/1455

CPC classification number: A61B5/14552

Abstract: A detection element of biological subcutaneous features and a wearable device thereof are provided. The element for detecting biological subcutaneous features has a substrate, a light-detecting semiconductor chip, a grid structure, and a cover. The light-detecting semiconductor chip is located on the substrate for detecting red light or near-infrared light signals. The grid structure including a plurality of opaque light-absorbing blocking walls is located on the light-detecting semiconductor chip for blocking side light and increasing the proportion of near-vertical incident light. The cover is located on the grid structure and serves as a protection lid. The wearable device for detecting biological subcutaneous features has more than one light source of red light or near-infrared light and a plurality of detection elements. The arrangement of the opaque light-absorbing blocking walls that are parallel to each other are substantially parallel to the light-emitting directions of the light source.

公开(公告)号：US20250155609A1

公开(公告)日：2025-05-15

申请号：US18938136

申请日：2024-11-05

Applicant: Lextar Electronics Corporation

Inventor： Kai-Hung CHENG ,  Ku-Cheng LIN ,  Chun-Min LIN ,  Wei-Yi HSU

IPC: G02B3/02 ,  B60K28/06 ,  B60W40/08 ,  G02B3/00 ,  G02B7/02 ,  G06V20/59

Abstract: An optical module is provided. The optical module includes a resin package, a lens and a light emitting element. The resin package has a receiving groove. The lens is disposed on the resin package, and the lens includes a light emitting surface, a light entering surface, and a central axis, wherein the light entering surface has an asymmetric structure. The light emitting element is disposed in the receiving groove, wherein the light emitting element is disposed deviated from the central axis of the lens.

公开(公告)号：US20150070931A1

公开(公告)日：2015-03-12

申请号：US14207451

申请日：2014-03-12

Applicant: LEXTAR ELECTRONICS CORPORATION

Inventor： Ku-Cheng LIN

IPC: F21V8/00

CPC classification number: G02B6/0031 ,  G02B6/009

Abstract: A backlight module is provided, including a circuit board, a plurality of light-emitting elements, a frame, and a plurality of first and second light-reflecting portions. The light-emitting elements are disposed on the circuit board and separated from each other. The frame includes a base plate and two lateral plates extended from the base plate, wherein the circuit board is disposed on the base plate. The first and second light-reflecting portions are disposed on at least one of the lateral plates and arranged in a staggered manner. The first light-reflecting portions are closer to the light-emitting elements than the second light-reflecting portions. The reflectivity of the second light-reflecting portions exceeds that of the first light-reflecting portions.

Abstract translation: 提供了一种背光模块，包括电路板，多个发光元件，框架和多个第一和第二光反射部分。 发光元件设置在电路板上并彼此分离。 框架包括基板和从基板延伸的两个侧板，其中电路板设置在基板上。 第一和第二光反射部分设置在至少一个侧板上并以交错方式布置。 第一光反射部比第二光反射部更靠近发光元件。 第二光反射部的反射率超过第一光反射部的反射率。

公开(公告)号：US20170223793A1

公开(公告)日：2017-08-03

申请号：US15361481

申请日：2016-11-27

Applicant: Lextar Electronics Corporation

Inventor： Chien-Nan YEH ,  Chun-Jong CHANG ,  Po-Shen CHEN ,  Kai-Hsiang SHIH ,  Jhao-Cyuan HUANG ,  Ku-Cheng LIN

IPC: H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0857

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a first driving circuit, and a processing circuit. The rectifying circuit is configured to convert an AC voltage to a rectified voltage. The first driving circuit is configured to receive the rectified voltage to provide a first current so as to drive a first lighting module. The first driving circuit includes a first switch. The first switch turns ON or OFF selectively according to a first control voltage signal so as to control the first current. The processing circuit is configured to receive a dimming command, and adjust the first control voltage signal according to the dimming command. The first control voltage signal is configured to control a phase delay angle and a duty cycle of the first current.

公开(公告)号：US20170215244A1

公开(公告)日：2017-07-27

申请号：US15361076

申请日：2016-11-25

Applicant: Lextar Electronics Corporation

Inventor： Chien-Nan YEH ,  Chun-Jong CHANG ,  Po-Shen CHEN ,  Kai-Hsiang SHIH ,  Jhao-Cyuan HUANG ,  Ku-Cheng LIN

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/083 ,  H05B33/0857 ,  H05B33/086

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a phase control circuit, a processing circuit and a first driving circuit. The rectifying circuit is configured to convert an input AC voltage to a rectified voltage signal. The phase control circuit is configured to receive the rectified voltage signal and a dimming command, and output a control voltage signal correspondingly in which the phase control circuit controls a phase delay angle of the control voltage signal according to the dimming command. The processing circuit is configured to receive the control voltage signal and adjust a first driving voltage signal according to the phase delay angle. The first driving circuit is configured to receive the first driving voltage signal to drive a first lighting module.