公开(公告)号：US20180129124A1

公开(公告)日：2018-05-10

申请号：US15564184

申请日：2016-04-06

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Zuqiang GUO

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

CPC classification number: G03B21/008 ,  G02B27/10 ,  G03B21/20 ,  G03B21/204 ,  H04N9/3114

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：US20150077974A1

公开(公告)日：2015-03-19

申请号：US14552238

申请日：2014-11-24

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Yi LI ,  Yi Yang

IPC: F21V7/00 ,  F21V13/08 ,  F21K99/00

CPC classification number: F21V7/0025 ,  F21K9/64 ,  F21V5/02 ,  F21V7/0008 ,  F21V7/0033 ,  F21V7/0041 ,  F21V7/045 ,  F21V7/05 ,  F21V7/06 ,  F21V9/30 ,  F21V13/08 ,  F21V13/14 ,  F21Y2115/10

Abstract: A light source device includes a LED light source or a wavelength conversion material having a near Lambertian light emitting surface. The light source device includes a light recycling system to reflect small-angle lights (lights closer to the normal direction of the light emitting surface) back to the light source, and a collection system for collecting and outputting large-angle lights (lights farther away from the normal direction). The lights reflected by the light recycling system is scattered by the emitting surface in all directions, where the large-angle scattered lights are collected by the light collection system and the small-angle scattered light is reflected by the light recycling system again. A second excitation light source without wavelength conversion material or a second light source with its own wavelength conversion material may be provided, and the second light is directed to the light emitting surface by appropriate optical components.

Abstract translation: 光源装置包括具有近朗伯光发射表面的LED光源或波长转换材料。 光源装置包括将小角度光（靠近发光面的法线方向的光）反射回光源的光回收系统，以及用于收集和输出大角度灯（更远的光线）的收集系统 从正常方向）。 由光回收系统反射的光被各个方向的发射面散射，其中大角度散射光被光收集系统收集，小角散射光再次被光再循环系统反射。 可以提供没有波长转换材料的第二激发光源或具有其自身的波长转换材料的第二光源，并且第二光通过适当的光学部件被引导到发光表面。