公开(公告)号：US20210341827A1

公开(公告)日：2021-11-04

申请号：US17280784

申请日：2019-08-14

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Lin WANG ,  Wei SUN ,  Jie WANG ,  Fei HU ,  Yi LI

IPC: G03B21/602 ,  G02B5/02 ,  G02B5/00

Abstract: A projection screen and a projection system using the projection screen. The projection screen includes a microstructure layer and a light absorbing layer sequentially stacked from the side where a projected light is introduced. The microstructure layer includes multiple microstructure units. Each microstructure unit includes one reflective surface and one lens surface opposite the reflective surface; moreover, the reflective surface is provided at a position matching the focus of the lens surface. The projection screen and the projection system can resist ambient light and have a high gain and a high contrast.

公开(公告)号：US20210333698A1

公开(公告)日：2021-10-28

申请号：US17273272

申请日：2019-03-01

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Xin YU ,  Chao WU ,  Fei HU ,  Yi LI

IPC: G03B21/20 ,  G03B21/00 ,  G02B6/35

Abstract: Disclosed are a light source system and control method thereof, as well as a display device and control method thereof. The light source system comprises: an array light source, comprising M illuminants with independently adjustable brightness; an optical switch, arranged on an emergent optical path of the army light source, for guiding illumination light emitted by the M illuminants to N sub-regions of a preset light region; and a control device for controlling an optical switch to adjust at a preset frame rate the direction of the illumination light emitted by at least part of the M illuminants, and guiding the illumination light emitted by at least part of the illuminants to sub-regions different from the previous one or more image frames of the current image frame.

公开(公告)号：US20210149287A1

公开(公告)日：2021-05-20

申请号：US16964165

申请日：2018-03-28

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zuqiang GUO ,  Yi LI

IPC: G03B21/20 ,  H04N9/31

Abstract: A projection device, comprising a light source device and a control device. The light source device is configured to, according to instructions, emit laser light of first primary color, second primary color, third primary color, and a fourth mixed color fluorescence, respectively. The control device is configured to determine a color gamut range of pixels of an image to be modulated, and transmit the instructions according to the color gamut range to control the light source device to output light required for modulation of the image to be modulated from the laser light of first primary color laser, second primary color, third primary color, and fourth mixed color fluorescence, respectively. The device and method are capable of modulating an image with a wide color gamut, and also save light source energy.

公开(公告)号：US20190354002A1

公开(公告)日：2019-11-21

申请号：US16466631

申请日：2017-11-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Hongxiu ZHANG ,  Zuqiang GUO ,  Yi LI

IPC: G03B21/625 ,  G02B3/08

Abstract: Provided is a projection screen. The screen includes: a base layer; a cylindrical lens layer formed on a side of the base layer close to a viewer, a Fresnel structure formed on a side of the base layer facing away from the viewer, a reflective layer formed on a side of the Fresnel structure facing away from the base layer, including reflective particles and configured to scatter and reflect, in a solid angle range corresponding to a particle size of the reflective particles, incident light incident from the Fresnel structure, to form reflected light; and a light-absorbing layer formed on a side of the reflective layer facing away from the Fresnel structure. The cylindrical lens layer includes a plurality of cylindrical lenses each having an axis perpendicular to a horizontal direction, and scatters light from the Fresnel structure to increase a viewing angle in the horizontal direction.

公开(公告)号：US20190227425A1

公开(公告)日：2019-07-25

申请号：US16319260

申请日：2017-04-28

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Yuxuan ZHOU ,  Fei HU ,  Yi LI

IPC: G03B21/62

Abstract: Provided are a light-reflecting microstructure, a projection screen and a projection system. The light-reflecting microstructure includes a transparent structure (101), the transparent structure (101) including a light incident surface (101a), a light-reflecting surface (101b) and a light-absorption surface (101c) connecting the light incident surface (101a) and the light-reflecting surface (101b); a light-absorption structure (102) located on the light-absorption surface (101c); and a reflection layer (103) located on the light-reflecting surface (101b). The transparent structure (101) is configured to refract projected light incident on the light incident surface (101a) at a preset angle to the reflection layer (103), and refract stray light incident on the light incident surface (101a) at another angle to the light-absorption structure (102). The reflection layer (103) is configured to reflect the projected light in such a manner that the projected light is emitted at a certain angle from the light incident surface (101a) after being refracted twice through the transparent structure (101). The light-absorption structure (102) is configured to absorb stray light. In this way, not only the projected light projected onto the projection screen can be reflected only to the viewer field by the reflection layer (103), thereby improving brightness of the projection screen and efficiency of the projection system, but only the problem that the existing light-reflecting microstructure cannot control the stray light can be solved by absorbing the stray light using the light-absorption structure, thereby improving the contrast of the projection screen.

公开(公告)号：US20190137054A1

公开(公告)日：2019-05-09

申请号：US15997663

申请日：2018-06-04

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Yi LI ,  Yi YANG ,  Liangliang CAO

IPC: F21K9/65 ,  G03B21/20 ,  F21V13/02

Abstract: A light emitting device and a projection system adopting same. The light emitting device (100) comprises a coherent source (110), a diffusing element (120), and a light guide part (140). The coherent source (110) is used for generating coherent light. The diffusing element (120) includes a first surface (121) and a second surface (122) which are opposite to each other, and the diffusing element (120) is used for dispersing the coherent light coming from the coherent source (110) so as to generate incoherent light. The light guide part (140) is provided on the side of the first surface (121) of the diffusing element (120). The light guide part (140) is used for guiding the coherent light emitting from the coherent source (110) to be incident on the first surface (121) so as to form a first light path, guiding a part of incoherent light emitting from the first surface (121) to emit through the first light path, guiding the remaining incoherent light to emit through a second path, and separating the first path and the second path. The luminous flux of the incoherent light emitting through the first light path is less than that of the incoherent light emitting through the second light path.

公开(公告)号：US20180294623A1

公开(公告)日：2018-10-11

申请号：US15785318

申请日：2017-10-16

Applicant: Appotronics Corporation Limited

Inventor： Fei HU ,  Jiayi YANG

IPC: H01S5/40 ,  F21Y115/30 ,  F21Y115/10 ,  F21Y113/00

CPC classification number: H01S5/4075 ,  F21Y2113/00 ,  F21Y2115/10 ,  F21Y2115/30 ,  H01S5/4012 ,  H01S5/4087

Abstract: Disclosed are a light source system and a laser light source (300). The laser light source includes two groups of laser groups (20a, 20b), wherein at least one group of laser groups includes at least two lasers (21a, 21b, 21c, 21d), and the light beams (L1) generated by the two groups of laser groups are in the same direction and parallel to each other. The first projections of the two groups of laser groups on the cross section of the light beams formed by the respective emergent light rays thereof are partially overlapped with the second projections in a first direction, which first direction is the connection direction of at least two laser centres of a group of laser groups. The laser light source has the effects of being able to effectively increase the light power density and at the same time reduce the volume of the light source.

公开(公告)号：US20180292070A1

公开(公告)日：2018-10-11

申请号：US15570669

申请日：2016-04-29

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Haixiong HOU

IPC: F21V7/05 ,  F21V7/04 ,  F21V9/30 ,  F21V13/08 ,  F21V7/28 ,  F21V29/502

Abstract: A light guide component and a light source device. The light guide component comprises a reflecting plate (131) having an aperture and a transflective coated plate (132). The reflecting plate (131) reflect light. The aperture allows light to pass through. The transflective coated plate (132) is connected to the reflecting plate (131) and covers the aperture, and transmits an excitation light and reflects light of a color different from that of the excitation light. The light source device comprises: an excitation light source (110), for generating excitation light; the light guide component, for transmitting, through the aperture and the transflective coated plate (132), the excitation light generated by the excitation light source (110); a color light generation device, for receiving the excitation light passing through the transflective excitation (132), and generating converted light by using the excitation light; and a light collecting component, for collecting the converted light generated by the color light generation device. The light guide component can reduce waste of converted light.

公开(公告)号：US20230021207A1

公开(公告)日：2023-01-19

申请号：US17425708

申请日：2020-01-20

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Chao WU ,  Xin YU ,  Fei HU ,  Yi LI

IPC: G03B21/20

Abstract: Provided is an array light source. The array light source includes light-emitting modules, a wavelength conversion apparatus configured to convert excitation light into excited light, a control apparatus configured to transmit a light modulation signal, and a light modulation apparatus configured to modulate the excited light based on the light modulation signal, emit the modulated light, and form a modulated image. Each light-emitting module is configured to emit the excitation light. The light-emitting modules include edge light emitting modules distributed along an edge of the array light source and center light-emitting modules surrounded by the edge light-emitting modules. A maximum luminous intensity of the edge light-emitting modules is greater than that of the center light-emitting modules.

公开(公告)号：US20220326517A1

公开(公告)日：2022-10-13

申请号：US17641618

申请日：2020-08-31

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Lin WANG ,  Xiaofeng TANG ,  Shijie LI ,  Yi LI

IPC: G02B27/01 ,  B60K35/00

Abstract: A head-up display screen, a head-up display assembly, and a vehicle are provided. The head-up display screen is attached to an inner side of an attachment surface of a windshield and configured to reflect image light emitted towards the windshield. The head-up display screen includes a functional layer, a reflective layer, and a protective layer that are sequentially arranged in a direction from the windshield to a driving position. The functional layer includes prism microstructures protruding from the inner side of the attachment surface of the windshield. The reflective layer is at least attached to lower inclined surfaces of the prism microstructures and is configured to reflect the image light towards the driving position. The protective layer covers the reflective layer and the functional layer.