公开(公告)号：US20160004147A1

公开(公告)日：2016-01-07

申请号：US14770027

申请日：2014-03-03

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Jiayi YANG ,  Yi YANG

IPC: G03B21/20 ,  G02B26/00

CPC classification number: G03B21/204 ,  G02B26/008 ,  G03B21/206 ,  G03B21/2066 ,  H04N9/315

Abstract: Disclosed are a wavelength conversion device, a light-emitting device and a projection system, comprising a wavelength conversion layer having a first surface and a second surface opposite each other. The first surface receives an excitation light. The wavelength conversion layer absorbs the excitation to produce a converted light and emits the converted light or the mixture of the converted light and the excitation light from the first surface and the second surface. A scattering reflective substrate is stacked with the wavelength conversion layer and includes a white porous ceramic or a white scattering material for scattering the incident light. The scattering reflective substrate includes a third surface facing the second surface and scatters at least a part of the incident light on the third surface and then emits all the light from the third surface to the second surface.

Abstract translation: 公开了一种波长转换装置，发光装置和投影系统，包括具有彼此相对的第一表面和第二表面的波长转换层。 第一表面接收激发光。 波长转换层吸收激发以产生转换的光，并从第一表面和第二表面发射转换的光或转换的光和激发光的混合物。 散射反射衬底与波长转换层堆叠并且包括用于散射入射光的白色多孔陶瓷或白色散射材料。 散射反射基板包括面向第二表面的第三表面，并且将入射光的至少一部分散射在第三表面上，然后从第三表面到第二表面发射全部光。

公开(公告)号：US20190258147A1

公开(公告)日：2019-08-22

申请号：US16273142

申请日：2019-02-11

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Jiayi YANG ,  Yi YANG

IPC: G03B21/20 ,  H04N9/31 ,  G02B26/00

Abstract: Disclosed are a wavelength conversion device, a light-emitting device and a projection system, comprising a wavelength conversion layer having a first surface and a second surface opposite each other. The first surface receives an excitation light. The wavelength conversion layer absorbs the excitation to produce a converted light and emits the converted light or the mixture of the converted light and the excitation light from the first surface and the second surface. A scattering reflective substrate is stacked with the wavelength conversion layer and includes a white porous ceramic or a white scattering material for scattering the incident light. The scattering reflective substrate includes a third surface facing the second surface and scatters at least a part of the incident light on the third surface and then emits all the light from the third surface to the second surface.

公开(公告)号：US20160069558A1

公开(公告)日：2016-03-10

申请号：US14785309

申请日：2014-04-11

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zifeng TIAN ,  Yi YANG ,  Wei FU

IPC: F21V29/65 ,  F21K2/00

CPC classification number: F21V29/65 ,  F21K2/00 ,  G02B7/008 ,  G02B26/008 ,  G02F1/1336 ,  G02F2001/133614 ,  G02F2001/133628 ,  G02F2201/36 ,  G03B21/16 ,  G03B21/204

Abstract: Disclosed are a wavelength conversion device and a light emitting device. The wavelength conversion device includes a wavelength conversion layer used for absorbing excitation light and generating converted light; a box having a first area used for transmitting the excitation light to the wavelength conversion layer and a second area used for transmitting the converted light, and further including an air outlet and an air inlet; a conduit, disposed outside the box and used for connecting the air inlet and the air outlet, so as to seal with the box the wavelength conversion layer in the box; a heat exchanger, used for decreasing a gas temperature in the conduit; and a gas circulation device, disposed in sealed space encircled by the box and the pipe conduit, and used for driving exchange between gas in the box and gas in the conduit. The wavelength conversion device achieves both dust prevention and heat dissipation.

Abstract translation: 公开了一种波长转换装置和发光装置。 波长转换装置包括用于吸收激发光并产生转换光的波长转换层; 具有用于将激发光传输到波长转换层的第一区域和用于传输转换的光的第二区域的盒，还包括空气出口和空气入口; 导管，设置在箱体外部并用于连接空气入口和空气出口，以便与箱体中的波长转换层密封; 用于降低管道中的气体温度的热交换器; 以及气体循环装置，设置在由箱体和管道管道围绕的密封空间中，并用于驱动箱内的气体与导管内的气体的交换。 波长转换装置实现了防尘和散热。

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.