公开(公告)号：US10386705B2

公开(公告)日：2019-08-20

申请号：US15564184

申请日：2016-04-06

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei Hu ,  Zuqiang Guo

IPC: G03B21/00 ,  G02B27/10 ,  G03B21/20 ,  H04N9/31

Abstract: A light emitting device and a projection display apparatus. The light emitting device comprises: an excitation light source (11), used for emitting excitation light; a compensation light source (12), used for emitting compensation light having a spectral range different from that of the excitation light; and a wavelength conversion device (13), disposed in a transmission path of the excitation light and the compensation light and used for outputting sequential light under alternate irradiation of the excitation light source (11) and the compensation light source (12), the sequential light comprising at least one type of excited light and the compensation light. The compensation light has spectral overlap with at least one type of excited light in the at least one type of excited light, so as to greatly improve the brightness of the light emitting device and the utilization efficiency of light in the light emitting device.

公开(公告)号：US20190171094A1

公开(公告)日：2019-06-06

申请号：US16323089

申请日：2017-04-21

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei Hu ,  Zuqiang Guo ,  Yi Li

IPC: G03B21/20

Abstract: A light emitting device includes a first light source, a light guiding system and a wavelength conversion device. The first light source is configured to emit first excitation light which enters the light guiding system via an incident light channel. The light guiding system is configured to guide the first excitation light to the wavelength conversion device. The wavelength conversion device includes a reflecting segment that reflects the first excitation light to form second excitation light. The light guiding system is further configured to collect the second excitation light and guide the second excitation light to exit via an output light channel. The first excitation light and the second excitation light have non-overlapping light paths.

公开(公告)号：US10168610B2

公开(公告)日：2019-01-01

申请号：US15532461

申请日：2015-12-02

Applicant: Appotronics Corporation Limited

Inventor： Zuqiang Guo ,  Zeqin Wang

IPC: G03B21/20 ,  H04N9/31 ,  G03B33/12 ,  G03B21/00

Abstract: A projection system includes a light source system for generating a first light beam in a first timing sequence and for generating a second light beam in a second timing sequence, the first light beam comprising a first light and a first compensation light, and the second light beam comprising a second light or comprising the second light and a first compensation light. A light splitting device sequentially divides the first light beam and the second light beam into a light transmitting along a first light path and a light transmitting along a second light path. A first light modulating device modulates the light travelling along the first light path, and a second light modulating device modulates the light travelling along the second light path. The first light or the second light is compensated by the first compensation light to have a wider color gamut of a synthesized color image.

公开(公告)号：US20180080630A1

公开(公告)日：2018-03-22

申请号：US15564159

申请日：2016-04-05

Applicant: Appotronics Corporation Limited

Inventor： Zeqin Wang ,  Yi Li ,  Zuqiang Guo

IPC: F21V13/02 ,  F21V14/08 ,  F21V13/12 ,  H05B33/08 ,  G03B21/20

CPC classification number: F21V9/30 ,  F21V13/00 ,  F21V13/02 ,  F21V13/12 ,  F21V14/08 ,  F21Y2113/13 ,  G03B21/2013 ,  G03B21/204 ,  G03B21/2053 ,  G03B21/2093 ,  G03B33/08 ,  H05B33/0845

Abstract: A light emitting device includes a light source module comprising an excitation light source for emitting exciting light and a compensation light source for emitting compensation light; and a color wheel component comprising at least one segmented region distributed in a motion direction of the color wheel component. The color wheel component emits the compensation light and first light that comprises at least one beam of excited light under irradiation of the excitation light source and the compensation light source. The compensation light spectrally overlaps the at least one beam of excited light in the first light, and the compensation light and the excited light spectrally overlapping the compensation light are simultaneously emitted and are independently adjustable. A projection system comprising a light emitting device is further provided.