公开(公告)号：US20160085141A1

公开(公告)日：2016-03-24

申请号：US14652426

申请日：2013-12-23

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Fei HU ,  Haixiong HOU ,  Liangliang CAO

IPC: G03B21/20 ,  F21V13/02 ,  F21V5/04

CPC classification number: G03B21/208 ,  F21V5/04 ,  F21V13/02 ,  G02B26/008 ,  G02B27/0905 ,  G02B27/0955 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/204 ,  H04N9/3161

Abstract: A light-emitting device and a related projection system. Light-emitting devices (300, 400) comprise: a light source unit (1) and focusing lenses (330, 430). The light source unit (1) comprises laser units (310, 410) and collimating lenses (320, 420) corresponding to the laser units (310, 410). The light-emitting surface of the laser units (310, 410) is a rectangle, and the light divergence angle of laser passing through the cross-section of the long side of the rectangle is smaller than the light divergence angle of same passing through the cross-section of the short side of the rectangle. The collimating lenses (320, 420) are used for focusing the laser from the laser units (310, 410) on a target surface to form a predetermined light spot. The laser units (310, 410) are located on the light axis of the collimating lenses (320, 420) in a predetermined position deviating from the focal point thereof, so that the predetermined light spot has a predetermined length-width ratio. The light-emitting device and the related projection system have the advantages of relatively small regulation quantity and relatively high assembly efficiency.

Abstract translation: 发光装置和相关投影系统。 发光装置（300,400）包括：光源单元（1）和聚焦透镜（330,430）。 光源单元（1）包括对应于激光单元（310,410）的激光单元（310,410）和准直透镜（320,420）。 激光单元（310,410）的发光面是矩形，并且穿过矩形的长边的横截面的激光的光发散角小于通过该矩形的相同的光发散角 矩形的短边的横截面。 准直透镜（320,420）用于将来自激光单元（310,410）的激光聚焦在目标表面上以形成预定的光斑。 激光单元（310,410）在偏离其焦点的预定位置处位于准直透镜（320,420）的光轴上，使得预定光斑具有预定的长宽比。 发光装置和相关的投影系统具有调节量相对较小和装配效率相对较高的优点。

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.