公开(公告)号：US20230176466A1

公开(公告)日：2023-06-08

申请号：US17585675

申请日：2022-01-27

Applicant: Qisda Corporation

Inventor： Peng LEE ,  Tsung-Hsun WU ,  Ching-Tze HUANG ,  Jia-Ming ZHANG

IPC: F21V9/30 ,  G02B27/10 ,  G02B26/00

CPC classification number: F21V9/30 ,  G02B26/008 ,  G02B27/102 ,  F21Y2115/10

Abstract: A light source system includes a first light emitter configured to emit a first light with a first color band in a first time interval of a time period, a second light emitter configured to emit a second light with a second color band in a second time interval of the time period rather than in the rest of the time period other than the second time interval, and a light guide disposed downstream from the first light emitter and the second light emitter. The first time interval and the second time interval overlap in an overlapping time interval. The first light emitter and the second light emitter synchronously emit the first light and the second light in the overlapping time interval to form a combined light beam in the light guide. The light with the second color band is dominant of the combined light beam.

公开(公告)号：US20240231210A9

公开(公告)日：2024-07-11

申请号：US18369916

申请日：2023-09-19

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Yi-Ling LO ,  Ching-Tze HUANG

IPC: G03B21/20

CPC classification number: G03B21/204 ,  G03B21/2013

Abstract: A projection device, including a light source module and a color wheel, is provided. The light source module includes a plurality of solid-state lighting sources driven by a DC drive power to sequentially provide a first light generated by a first number of light sources, a second light generated by a second number of light sources and a third light generated by a third number of light sources within a response cycle, wherein the number of light sources to be turn on is less than or equivalent to a total number of solid-state lighting sources. The color wheel has a first block, a second block and a third block, respectively corresponding to the first to third lights, so that the projection device sequentially outputs a first color light with a first brightness, a second color light with a second brightness and a third color light with a third brightness.

公开(公告)号：US20240133537A1

公开(公告)日：2024-04-25

申请号：US18376501

申请日：2023-10-03

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Ching-Tze HUANG

IPC: F21V5/02 ,  F21V5/04

CPC classification number: F21V5/02 ,  F21V5/04 ,  F21Y2113/10

Abstract: A light source module includes a first light source, a second light source, a first reflective layer and a second reflective layer. The first light source is configured to emit a first light having a first wavelength. The second light source is configured to emit a second light having the first wavelength. The first reflective layer is disposed opposite to the first light source and configured to reflect the first light. The second reflective layer is disposed opposite to the second light source and configured to reflect the second light. The first reflective layer and the second reflective layer are configured to reflect light of any wavelength in a visible spectrum.

公开(公告)号：US20240230060A9

公开(公告)日：2024-07-11

申请号：US18376501

申请日：2023-10-04

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Ching-Tze HUANG

IPC: F21V5/02 ,  F21V5/04

CPC classification number: F21V5/02 ,  F21V5/04 ,  F21Y2113/10

Abstract: A light source module includes a first light source, a second light source, a first reflective layer and a second reflective layer. The first light source is configured to emit a first light having a first wavelength. The second light source is configured to emit a second light having the first wavelength. The first reflective layer is disposed opposite to the first light source and configured to reflect the first light. The second reflective layer is disposed opposite to the second light source and configured to reflect the second light. The first reflective layer and the second reflective layer are configured to reflect light of any wavelength in a visible spectrum.

公开(公告)号：US20210055642A1

公开(公告)日：2021-02-25

申请号：US16997049

申请日：2020-08-19

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Chien-Chiang HSU

IPC: G03B21/20 ,  G02B3/00 ,  G02B27/14 ,  G02B26/00

Abstract: A light source module for providing an illumination light includes a light source configured to provide a first beam of a first waveband, a microlens array disposed corresponding to the light source and configured to uniform the first beam, a first lens set configured to focus at least a portion of the first beam uniformed by the microlens array, and a wavelength conversion unit configured to convert at least a portion of the first beam focused by the first lens set into a second beam of a second waveband different from the first waveband, wherein the second beam and the first beam not converted by the wavelength conversion unit together form the illumination light.

公开(公告)号：US20240134261A1

公开(公告)日：2024-04-25

申请号：US18369916

申请日：2023-09-18

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Yi-Ling LO ,  Ching-Tze HUANG

IPC: G03B21/20

CPC classification number: G03B21/204 ,  G03B21/2013

Abstract: A projection device, including a light source module and a color wheel, is provided. The light source module includes a plurality of solid-state lighting sources driven by a DC drive power to sequentially provide a first light generated by a first number of light sources, a second light generated by a second number of light sources and a third light generated by a third number of light sources within a response cycle, wherein the number of light sources to be turn on is less than or equivalent to a total number of solid-state lighting sources. The color wheel has a first block, a second block and a third block, respectively corresponding to the first to third lights, so that the projection device sequentially outputs a first color light with a first brightness, a second color light with a second brightness and a third color light with a third brightness.

公开(公告)号：US20210223538A1

公开(公告)日：2021-07-22

申请号：US17148904

申请日：2021-01-14

Applicant: Qisda Corporation

Inventor： Jia-Ming ZHANG ,  Ching-Shuai HUANG

IPC: G02B26/08 ,  G02B5/04 ,  G03B21/28 ,  G03B21/20

Abstract: A projection device for providing an image light includes a light source module configured to provide an illumination light, a dichroic film configured to allow a first portion of the illumination light to transmit therethrough to form a light in a first wavelength range and to reflect a second portion of the illumination light into a light in a second wavelength range different from the first wavelength range, a first digital micromirror device (DMD) configured to reflect the light in the first wavelength range from the dichroic film into a first light, and a second DMD configured to reflect the light in the second wavelength range from the dichroic film into a second light, wherein the first light and the second light together form the image light.