公开(公告)号：US20210011363A1

公开(公告)日：2021-01-14

申请号：US16641320

申请日：2017-12-06

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Zuqiang GUO ,  Peng DU ,  Yi LI

IPC: G03B21/20 ,  G02B26/00 ,  G03B21/00 ,  G02B27/10 ,  G02B27/14

Abstract: A projection system, comprising: a light-emitting apparatus for providing first light and second light emitted in a time sequence; a light-splitting system for dividing the first light into first primary color light and second primary color light, and dividing the second light into two paths of third primary color light; a spatial light modulator, comprising a first region and a second region, wherein the primary color light emitted along a first optical path enters the first region, and the primary color light emitted along a second optical path enters the second region; and an image processing apparatus for dividing, corresponding to the first region and the second region, image signals to be output into two groups, and changing the sequence of at least one of the groups so as to match the time sequence of primary color light received in a corresponding region.

公开(公告)号：US20200057240A1

公开(公告)日：2020-02-20

申请号：US16461340

申请日：2017-11-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Guangjun YU ,  Siyao HUANG ,  Yi LI

IPC: G02B7/02 ,  G03B17/12 ,  G03B21/14

Abstract: A lens sealing sleeve includes a hollow cylindrical sleeve body used for a lens barrel to pass through and including a plurality of fold portions arranged along the axial direction, and two ends of the sleeve body are provided with a first opening and a second opening. The lens sealing sleeve also includes a first connection portion and a second connection portion. The first connection portion includes a first protrusion at least partially surrounding the first opening and correspondingly extending in a direction facing away from a central line of the first opening. The second connection portion includes a second protrusion at least partially surrounding the second opening and correspondingly extending in a direction facing away from a central line of the second opening. The first protrusion is provided with a first connection hole. The second protrusion is respectively provided with a second connection hole.

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：US20190243223A1

公开(公告)日：2019-08-08

申请号：US16319262

申请日：2017-05-18

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Dongsheng LI ,  Yi LI

IPC: G03B21/14

Abstract: Disclosed are a housing and a projection device comprising the housing. The housing comprises a case body, the case body comprising a first substrate, a second substrate and an annular connection plate, wherein the first substrate and the second substrate are arranged oppositely, the annular connection plate is disposed between the first substrate and the second substrate, the second substrate comprises a lens placement region in which a lens of the projection device is to be arranged, and a region, corresponding to the lens, of the annular connection plate is an opening region. The housing further comprises a knob lens cap arranged at the lens placement region, wherein the knob lens cap comprises a knob portion movably connected to the case body and extending out of the case body; and the knob portion drives the knob lens cap to rotate and move so as to shelter or expose the lens.

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.