Tunable VCSEL with Strain Compensated Semiconductor DBR

    公开(公告)号:US20220115838A1

    公开(公告)日:2022-04-14

    申请号:US17450918

    申请日:2021-10-14

    发明人: Mark E. Kuznetsov

    IPC分类号: H01S5/183 H01S5/068

    摘要: Tunable VCSELs (TVCSELs) employing expanded material systems with expanded mechanical/optical design space for semiconductor DBR mirrors on GaAs substrates. One is the InGaAs/AlGaAsP material system. It adds indium In to decrease InGaAs H-layer bandgap for higher refractive index and higher DBR layer refractive index contrast. Adding phosphorus P gives independent control of bandgap and strain of AlGaAsP low refractive index L-layers. The tensile strain of AlGaAsP L-layer compensates compressive strain of InGaAs H-layer and lowers the cumulative strain of the multilayer DBR structure. Another option is the InGaAsN(Sb)/AlGaAsP material system, where both types of layers can be lattice matched to GaAs. It uses indium In and nitrogen N, and possibly antimony Sb, to get independent control of strain and bandgap, and thus refractive index, of dilute nitride InGaAsN(Sb) H-layers, with lower bandgap and higher refractive index than starting GaAs. Using expanded material system enables reliable DBR mirrors with higher reflectivity and spectral bandwidth and tunable VCSELs with wider tuning range.

    Mechanically sealed tube for laser sustained plasma lamp and production method for same

    公开(公告)号:US10109473B1

    公开(公告)日:2018-10-23

    申请号:US15880754

    申请日:2018-01-26

    摘要: A laser sustained plasma lamp includes a mechanically sealed pressurized chamber assembly (330) configured to contain an ionizable material. The chamber assembly is bounded by a chamber tube (310), an ingress sapphire window (340), a first metal seal ring (320) configured to seal against the chamber tube ingress end and the ingress sapphire window, an egress sapphire window (342), and a second metal seal ring (322) configured to seal against the chamber tube egress end and the egress sapphire window. A mechanical clamping structure (350, 355) external to the chamber assembly is configured to clamp across at least a portion of the ingress sapphire window and the egress sapphire window. The ingress sapphire window and the egress sapphire window are not connected to the chamber tube via welding and/or brazing.

    Fiber optic ferrule coupling system

    公开(公告)号:US09791636B1

    公开(公告)日:2017-10-17

    申请号:US15192184

    申请日:2016-06-24

    发明人: Scott Carpenter

    IPC分类号: G02B6/38

    摘要: A fiber optic ferrule coupling system including a ferrule interface plate having a ferrule port extending therethrough and a pocket in a side of the ferrule interface plate adjacent to the ferrule port, wherein a spring element disposed in the pocket partially protrudes into the port and applies an adjustable spring force to a ferrule connector inserted in the ferrule port via a spring cover fittable within the pocket.

    Color temperature tunable LED-based lamp module
    8.
    发明授权
    Color temperature tunable LED-based lamp module 有权
    色温可调LED基灯模块

    公开(公告)号:US09222628B2

    公开(公告)日:2015-12-29

    申请号:US13886703

    申请日:2013-05-03

    摘要: A light mixing and folding lamp includes an LED assembly with two or more LED chips that direct light into the ingress end of a light mixing rod. The light mixing rod is positioned to pass through an aperture in a concave second reflecting element, and mixed light emerges from the egress end of the light mixing rod, where it is directed toward a first reflecting element positioned near a focal point of the second reflecting element. The first reflecting element reflects mixed light emerging from the egress end of the light mixing rod, folding the mixed light back toward a concave reflecting surface of the second reflecting element. The second reflecting element reflects light from the first reflecting element forward, where the light emerges from the lamp directed toward a subject to be illuminated.

    摘要翻译: 光混合折叠灯包括具有两个或更多个LED芯片的LED组件,其将光引导到光混合杆的入口端。 光混合棒被定位成穿过凹入的第二反射元件中的孔,并且混合的光从光混合杆的出口端出射,其中它被定向在靠近第二反射的焦点附近的第一反射元件 元件。 第一反射元件反射从光混合杆的出口端出射的混合光,将混合光折回到第二反射元件的凹面反射面。 第二反射元件将来自第一反射元件的光向前反射,其中光从指示灯朝向被照明物体的灯射出。

    Light guide for coupling differently shaped light source and receiver
    9.
    发明授权
    Light guide for coupling differently shaped light source and receiver 有权
    用于耦合不同形状的光源和接收器的光导

    公开(公告)号:US08616751B2

    公开(公告)日:2013-12-31

    申请号:US13045111

    申请日:2011-03-10

    申请人: Wei Li

    发明人: Wei Li

    IPC分类号: F21V7/04

    摘要: A light guide for interfacing between a light source having a light emitting surface with a first shape and a light receiver with a light receiving surface of a second shape. The light guide has a light emitting end having a first shape of substantially the same size as the first shape of the light emitting surface. A light receiving end has a second shape of substantially the same size as the second shape of the light receiving surface. A free form body between the light emitting end and the light receiving end causes a transition between the first and second shape.

    摘要翻译: 一种用于在具有第一形状的发光表面的光源和具有第二形状的光接收表面的光接收器之间进行接口的光导。 光导具有发光端,其具有与发光表面的第一形状基本相同的尺寸的第一形状。 光接收端具有与光接收表面的第二形状大致相同尺寸的第二形状。 在发光端和光接收端之间的自由形状体引起第一和第二形状之间的转变。

    COLOR TEMPERATURE TUNABLE LED-BASED LAMP MODULE
    10.
    发明申请
    COLOR TEMPERATURE TUNABLE LED-BASED LAMP MODULE 有权
    色温TUNABLE LED基灯模组

    公开(公告)号:US20130294103A1

    公开(公告)日:2013-11-07

    申请号:US13886703

    申请日:2013-05-03

    IPC分类号: F21K99/00 F21V33/00

    摘要: A light mixing and folding lamp includes an LED assembly with two or more LED chips that direct light into the ingress end of a light mixing rod. The light mixing rod is positioned to pass through an aperture in a concave second reflecting element, and mixed light emerges from the egress end of the light mixing rod, where it is directed toward a first reflecting element positioned near a focal point of the second reflecting element. The first reflecting element reflects mixed light emerging from the egress end of the light mixing rod, folding the mixed light back toward a concave reflecting surface of the second reflecting element. The second reflecting element reflects light from the first reflecting element forward, where the light emerges from the lamp directed toward a subject to be illuminated.

    摘要翻译: 光混合折叠灯包括具有两个或更多个LED芯片的LED组件,其将光引导到光混合杆的入口端。 光混合棒被定位成穿过凹入的第二反射元件中的孔,并且混合的光从光混合杆的出口端出射,其中它被定向在靠近第二反射的焦点附近的第一反射元件 元件。 第一反射元件反射从光混合杆的出口端出射的混合光,将混合光折回到第二反射元件的凹面反射面。 第二反射元件将来自第一反射元件的光向前反射,其中光从指示灯朝向被照明物体的灯射出。