公开(公告)号：US11809069B2

公开(公告)日：2023-11-07

申请号：US17454050

申请日：2021-11-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chun-Hsien Lu ,  Yu-Nien Lin

IPC: G03B21/20 ,  G02B27/09 ,  H04N9/31

CPC classification number: G03B21/2033 ,  G02B27/0927 ,  H04N9/3161

Abstract: A coaxial laser light source apparatus includes at least one laser light source module, a beam homogenizer, and optical path adjusting elements. The laser light source module includes multiple laser light sources arranged along a first direction, and each of the laser light sources is configured to emit a laser light along a second direction. The first direction is substantially perpendicular to the second direction, and the laser lights have different properties. The laser lights travel along the second direction toward the beam homogenizer coaxially. The optical path adjusting elements are located between the laser light sources and the beam homogenizer, and the optical path adjusting elements are configured to adjust traveling directions of the laser lights.

公开(公告)号：US10281638B2

公开(公告)日：2019-05-07

申请号：US15007226

申请日：2016-01-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: F21V8/00 ,  G02B1/11 ,  G02B5/02 ,  G02B7/00 ,  G02B26/00 ,  G02B27/14 ,  G03B21/20

Abstract: A wavelength converting module includes a wavelength converting unit. The wavelength converting unit is at least made of a phosphor material. The wavelength converting unit is a solid rod-shaped structure, in which two opposite end surfaces of the rod-shaped wavelength converting unit are a light-entrance surface and a light-exit surface respectively.

公开(公告)号：US09753277B2

公开(公告)日：2017-09-05

申请号：US15140457

申请日：2016-04-27

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: G02B5/08 ,  G02B26/00 ,  G02B5/22 ,  G02B5/26

CPC classification number: G02B26/008 ,  G02B5/0242 ,  G02B5/0284 ,  G02B5/0294 ,  G02B5/08 ,  G02B5/22 ,  G02B5/223 ,  G02B5/226 ,  G02B5/26 ,  G03B21/204

Abstract: A wavelength conversion device includes a substrate, a reflective member, and a wavelength conversion member. The reflective member is disposed on the substrate and includes a continuous-phase material and nano particles. The nano particles are distributed in the continuous-phase material. A refractive index of the continuous-phase material is different from a refractive index of the nano particles. The wavelength conversion member is disposed on the reflective member. The reflective member is configured to reflect the light converted from the wavelength conversion member to output.

公开(公告)号：US11703692B2

公开(公告)日：2023-07-18

申请号：US17453857

申请日：2021-11-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chun-Hsien Lu

IPC: G02B27/28 ,  G03B21/62 ,  G03B21/20

CPC classification number: G02B27/286 ,  G03B21/2033 ,  G03B21/62

Abstract: A laser light source depolarizer includes a laser light source, a light angle adjusting element, a birefringent crystal, and an integration rod. The laser light source is configured to emit a laser light. The light angle adjusting element is configured to change the diffusion angle of the laser light. The light angle adjusting element is disposed between the laser light source and the birefringent crystal. The birefringent crystal is disposed between the light angle adjusting element and the integration rod, and the birefringent crystal is configured to break the polarity of the laser light.

公开(公告)号：US20180231879A1

公开(公告)日：2018-08-16

申请号：US15854726

申请日：2017-12-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Chun-Hsien Lu ,  Yen-I Chou ,  Chi Chen ,  Po-Tsun Kuo

IPC: G03B21/20 ,  G03B33/12 ,  G03B33/08

CPC classification number: G03B21/204 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/2066 ,  G03B21/208 ,  G03B33/06 ,  G03B33/08 ,  G03B33/12

Abstract: A laser light source for projector includes a laser light source module, first and second light receiving modules, a phosphor wheel, and a light combining module. The phosphor wheel has a first and a second side. The phosphor wheel receives the laser and converts the laser into first and second fluorescent light. The phosphor wheel receives the laser at a first side and emits the first fluorescent light. The phosphor wheel emits the second fluorescent light at a second side. After the first fluorescent light and the second fluorescent light passes through the first and second light receiving modules, at least one of the directions of optical axes of the first and second fluorescent light is changed. The light combining module receives the first and second fluorescent lights and emits a combined light.

公开(公告)号：US20180031207A1

公开(公告)日：2018-02-01

申请号：US15467300

申请日：2017-03-23

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: F21V9/16 ,  F21V29/502 ,  G03B21/20

CPC classification number: F21V9/30 ,  G03B21/16 ,  G03B21/204

Abstract: A phosphor wheel includes a substrate, at least a phosphor agent and a plurality of vortex generators. The substrate has a first region and a second region. The second region has a plurality of openings. The phosphor agent is disposed on the first region for converting the wavelength of waveband light. Each vortex generator includes at least a guide vane. Each guide vane is disposed on the second region, and the projection, which is on the second region, of each guide vane is corresponded to one of the openings, such that a vortex is generated during a rotation of the substrate. Therefore, the efficiency of heat exchange is enhanced, the temperature of light spot is reduced, and further the output efficiency of light of the phosphor agent is increased.

公开(公告)号：US20170277029A1

公开(公告)日：2017-09-28

申请号：US15403995

申请日：2017-01-11

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: G03B21/20 ,  H04N9/31 ,  F21V9/08 ,  F21V13/08 ,  F21V9/16 ,  F21K9/64

CPC classification number: G03B21/204 ,  B32B7/04 ,  B32B9/005 ,  B32B9/007 ,  B32B9/041 ,  B32B15/04 ,  B32B15/20 ,  B32B17/00 ,  B32B2250/02 ,  B32B2255/06 ,  B32B2307/204 ,  B32B2307/302 ,  B32B2307/40 ,  B32B2307/412 ,  B32B2307/416 ,  B32B2307/422 ,  B32B2457/00 ,  F21V9/30 ,  G03B33/06 ,  H04N9/3105 ,  H04N9/3114 ,  H04N9/3158 ,  H04N9/3161 ,  H04N9/3164

Abstract: A phosphor device of an illumination system emitting a first waveband light and having an optical path includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. The first waveband light is received and converted into a second waveband light by the first phosphor agent. The second waveband light is directed to the optical path. The range of the spectrum of the second waveband light includes at least a first color light and a second color light, so that the first color light or the second color light is separated from the second waveband light along the optical path. Therefore, the diversity of the design of the phosphor device is enhanced, the manufacturing cost and the size of product are reduced, and the color purity is enhanced.

公开(公告)号：US10367330B2

公开(公告)日：2019-07-30

申请号：US15219304

申请日：2016-07-26

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Chun-Hsien Lu ,  Yen-I Chou ,  Chi Chen

IPC: H01S5/00 ,  G02B5/02

Abstract: A diffuser includes a first substrate and a gel layer. The first substrate has a first refractive index n1. The gel layer includes a body and at least one microstructure. The body is disposed on the first substrate. The microstructure is disposed on the body, wherein the dimension of the microstructure is smaller than that of the body. The body is located between the microstructure and the first substrate. The gel layer has a second refractive index n2, and n1>n2.

公开(公告)号：US10310363B2

公开(公告)日：2019-06-04

申请号：US15403995

申请日：2017-01-11

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: F21K9/64 ,  G03B21/20 ,  H04N9/31 ,  F21V9/30 ,  G03B33/06 ,  B32B7/04 ,  B32B9/00 ,  B32B9/04 ,  B32B15/04 ,  B32B15/20 ,  B32B17/00

Abstract: A phosphor device of an illumination system emitting a first waveband light and having an optical path includes a first section and a first phosphor agent. The first phosphor agent is coated on the first section. The first waveband light is received and converted into a second waveband light by the first phosphor agent. The second waveband light is directed to the optical path. The range of the spectrum of the second waveband light includes at least a first color light and a second color light, so that the first color light or the second color light is separated from the second waveband light along the optical path. Therefore, the diversity of the design of the phosphor device is enhanced, the manufacturing cost and the size of product are reduced, and the color purity is enhanced.

公开(公告)号：US10309617B2

公开(公告)日：2019-06-04

申请号：US15467300

申请日：2017-03-23

Applicant: DELTA ELECTRONICS, INC.

Inventor： Keh-Su Chang ,  Yen-I Chou ,  Chi Chen ,  Chun-Hsien Lu

IPC: F21V9/30 ,  G03B21/16 ,  G03B21/20

Abstract: A phosphor wheel includes a substrate, at least a phosphor agent and a plurality of vortex generators. The substrate has a first region and a second region. The second region has a plurality of openings. The phosphor agent is disposed on the first region for converting the wavelength of waveband light. Each vortex generator includes at least a guide vane. Each guide vane is disposed on the second region, and the projection, which is on the second region, of each guide vane is corresponded to one of the openings, such that a vortex is generated during a rotation of the substrate. Therefore, the efficiency of heat exchange is enhanced, the temperature of light spot is reduced, and further the output efficiency of light of the phosphor agent is increased.