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公开(公告)号：US10707650B2
公开(公告)日：2020-07-07
申请号：US16053541
申请日：2018-08-02
Applicant: Princeton Optronics, Inc.
Inventor： Chuni Ghosh , Jean-Francois Seurin , Delai Zhou , Laurence Watkins
IPC: H01S5/183 , H01S5/042 , H01S5/187 , H01S5/22 , H01S5/30 , H01S5/026 , H01S5/062 , H01S5/42 , H01S5/34
Abstract: A Vertical Cavity Surface Emitting Laser (VCSEL) includes a reflecting surface of the VCSEL. A gain region is positioned on the distributed Bragg reflector that generates optical gain. The gain region comprises a first and second multiple quantum well stack, a tunnel junction positioned between the first and second multiple quantum well stack, and a current aperture positioned on one of the first and second multiple quantum well stack. The current aperture confines a current flow in the gain region. A partially reflective surface and the reflective surface forming a VCSEL resonant cavity, wherein an output optical beam propagates from the partially reflecting surface.
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公开(公告)号：US20170115497A1
公开(公告)日：2017-04-27
申请号：US15288129
申请日：2016-10-07
Applicant: Princeton Optronics, Inc.
Inventor： Tong Chen , Chuni Ghosh , Laurence Watkins
IPC: G02B27/42 , G02B27/12 , G02B3/00 , G01S17/08 , F21V5/00 , G06T7/521 , H04N13/02 , G06K9/00 , G02B27/30 , F21V5/04
CPC classification number: G02B27/425 , F21V5/004 , F21V5/005 , F21V5/008 , F21V5/04 , F21V5/043 , F21Y2115/10 , F21Y2115/30 , G01S7/4815 , G01S17/08 , G02B3/0037 , G02B27/12 , G02B27/126 , G02B27/30 , G02B27/46 , G06K9/00335 , G06K9/2036 , G06T7/521 , H04N13/207 , H04N13/254
Abstract: A coded pattern projector apparatus comprises a surface-emitting array of emitters comprising a plurality of emitters where each of the plurality of emitters generates one of a plurality of optical beams in response to an electrical drive signal applied to a respective electrical input of each of the plurality of emitters. A first optical element projects each the plurality of optical beams generated by the surface-emitting array of emitters. A second optical element collimates the plurality of optical beams in a first dimension and diverges the plurality of optical beams in a second dimension such that the plurality of optical beams form at least one stripe patterns. A controller has a plurality of electrical outputs, each of the plurality of electrical outputs is connected to a respective electrical inputs of each of the plurality of emitters. The controller generating desired electrical drive signals that produce a desired coded stripe pattern.
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公开(公告)号：US20160348636A1
公开(公告)日：2016-12-01
申请号：US15166296
申请日：2016-05-27
Applicant: Princeton Optronics Inc.
Inventor： Chuni L. Ghosh , Qing Wang , Bing Xu , Robert van Leeuwen
IPC: F02P23/04
CPC classification number: F02P23/04 , F02B19/12 , F02P13/00 , F02P15/08 , H01S3/025 , H01S3/0405 , H01S3/0407 , H01S3/061 , H01S3/0627 , H01S3/094053 , H01S3/0941 , H01S3/09415 , H01S3/113 , H01S3/2383 , H01S5/423
Abstract: A high efficiency optical ignition device is provided in a two-part compact and robust package to be mounted directly on an internal combustion engine chamber. The ignition device ignites a combustion fuel with a high intensity plasma generated by a high power laser beam from a solid state laser operable in Q-switched, or non-Q-switched mode for producing short or long pulses, respectively. Multiple pulses are generated, and duration and frequency of the laser beam pulses are controlled by controlling an optical pump module to pump the solid state laser. The optical pump module comprises a semiconductor laser, preferably a VCSEL device. One or more laser beams are precisely directed, each one to a desired location anywhere within the combustion chamber for more efficient and near complete burning of the combustion fuel. The robust packaging is well suited to withstand mechanical and thermal stresses of the internal combustion engine.
Abstract translation: 高效率的光学点火装置设置在两部分紧凑且坚固的包装中，以直接安装在内燃机室上。 点火装置用来自固态激光器的高功率激光束产生的高强度等离子体燃烧燃烧燃料，该固体激光器可以分别用于产生短脉冲或长脉冲的Q开关或非Q开关模式。 产生多个脉冲，通过控制光泵模块来泵浦固态激光器来控制激光束脉冲的持续时间和频率。 光泵模块包括半导体激光器，优选VCSEL器件。 一个或多个激光束被精确地引导到燃烧室中的任何地方的每个位置到达期望的位置，以便燃烧燃料的更有效和接近完全的燃烧。 坚固的包装非常适合承受内燃机的机械和热应力。
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公开(公告)号：US20160254638A1
公开(公告)日：2016-09-01
申请号：US15055589
申请日：2016-02-27
Applicant: Princeton Optronics Inc.
Inventor： Tong Chen , Chuni L. Ghosh , Jean-Francois Seurin , Laurence S. Watkins
CPC classification number: H01S5/005 , H01S5/02276 , H01S5/026 , H01S5/18308 , H01S5/18311 , H01S5/18388 , H01S5/2063 , H01S5/2072 , H01S5/423 , H04N5/2254 , H04N13/204 , H04N13/207 , H04N13/254 , H04N13/296
Abstract: A miniature structured light illuminator is provided. The miniature structured light illuminator uses a semiconductor surface emitting array including VCSEL or RC-LED array and an array of microlens elements to generate a wide range of structured light illumination patterns. The emission beam from a surface emitter array may be selectively directed, steered, focused or expanded, by applying a lateral displacement of the microlens array, such that centers of the emission beam and microlens array are misaligned. Emitted beams may be directed through small optical components to project the structured light pattern to a distant plane. The surface emitting arrays may be configured in addressable form to be activated separately for continuous or pulsed operation with very fast pulses having
Abstract translation: 提供微型结构光照明器。 微型结构光照射器使用包括VCSEL或RC-LED阵列的半导体表面发射阵列和微透镜元件阵列以产生宽范围的结构光照度图案。 可以通过施加微透镜阵列的横向位移来选择性地引导，转向，聚焦或扩展来自表面发射器阵列的发射光束，使得发射光束和微透镜阵列的中心不对准。 发射光束可以被引导通过小的光学部件，以将结构化光图案投影到远处的平面。 表面发射阵列可以被配置成可寻址的形式，以使具有<100ps上升时间的非常快的脉冲进行连续或脉冲操作。 具有投影光学元件的紧凑型结构光照射器模块以非常小的物理尺寸（〜6×6×3 mm3）提供，适合在手持设备中配置。
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公开(公告)号：US20150260830A1
公开(公告)日：2015-09-17
申请号：US14303161
申请日：2014-06-12
Applicant: Princeton Optronics Inc.
Inventor： Chuni Lal Ghosh , Jean Francois Seurin , Laurence S Watkins
CPC classification number: G01S7/4815 , G01S7/4816 , G01S7/484 , G01S17/026 , G01S17/89 , H01L2224/16225 , H01L2224/73 , H01S5/005 , H01S5/02248 , H01S5/423
Abstract: An apparatus and a method are provided for 3-D proximity sensing, imaging and scanning using a 2-D planar VCSEL array source using reflected radiation from an object being detected. An important aspect of the apparatus is a compact high power optical source and in particular, an optical source comprising a plurality of VCSELs to illuminate the object. VCSELs in the optical source are configured in different 2-D planar arrangements, such that the optical source may be used in many different modes to adapt to different sensing, imaging and scanning requirement suited for different environments including one where shape, size and illumination mode require to be altered dynamically. When used in different modes of operation the apparatus provides a comprehensive set of measured distance and intensity profile of the object to compute a 3-D image.
Abstract translation: 提供了一种用于使用来自被检测物体的反射辐射的2-D平面VCSEL阵列源进行3-D接近感测，成像和扫描的装置和方法。 该装置的一个重要方面是紧凑的大功率光源，特别是包括多个VCSEL以照亮物体的光源。 光源中的VCSEL被配置成不同的2-D平面布置，使得光源可以以许多不同的模式使用以适应不同的感测，成像和扫描要求，其适用于不同环境，包括形状，尺寸和照明模式 需要动态更改。 当在不同的操作模式下使用时，装置提供了一组全面的测量距离和对象的强度分布，以计算3-D图像。
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Patent Agency Ranking
公开(公告)号：US09038883B2
公开(公告)日：2015-05-26
申请号：US14479325
申请日：2014-09-07
Applicant: Princeton Optronics Inc.
Inventor： Qing Wang , Jean-Francois Seurin , Chuni Lal Ghosh , Laurence Watkins
CPC classification number: H01S5/02272 , B23K1/0016 , B23K1/012 , B23K2101/42 , H01L2224/16225 , H01L2224/48091 , H01L2224/49175 , H01S5/0042 , H01S5/02276 , H01S5/423 , H05K1/0206 , H05K3/3436 , H05K3/3494 , H05K2201/10121 , H05K2201/10727 , H05K2203/085 , Y02P70/613 , H01L2924/00014
Abstract: A process to bond VCSEL arrays to submounts and printed circuit boards is provided. The process is particularly suited to large area thin and ultra-thin VCSEL arrays susceptible to bending and warping. The process integrates a flatness measurement step and applying appropriate combination of pressure prior to bonding the VCSEL array to the submount or a printed circuit using a vacuum flux-less bonding process. The process is very promising in making very good quality bonding between the VCSEL array and a submount or a printed circuit board. The process is applied to construct optical modules with improved flatness that may be integrated with other electronic components in constructing optoelectronic systems.
Abstract translation: 提供了将VCSEL阵列绑定到底座和印刷电路板的过程。 该工艺特别适用于容易弯曲和翘曲的大面积薄型和超薄型VCSEL阵列。 该过程集成了平坦度测量步骤，并且在使用真空无焊接接合工艺将VCSEL阵列与基座或印刷电路结合之前，应用适当的压力组合。 该过程非常有希望在VCSEL阵列与底座或印刷电路板之间进行非常好的质量接合。 该方法应用于构建具有改进的平坦度的光学模块，其可以与构建光电子系统的其它电子部件集成。
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公开(公告)号：US08783893B1
公开(公告)日：2014-07-22
申请号：US14166664
申请日：2014-01-28
Applicant: Princeton Optronics Inc.
Inventor： Jean F. Seurin , Chuni L Ghosh , Qing Wang , Laurence S. Watkins
CPC classification number: F21V29/74 , F21L4/02 , F21V29/56 , F21V29/65 , F21V29/67 , F21V29/70 , H01L2224/48091 , H01L2224/48137 , H01S5/005 , H01S5/02248 , H01S5/02272 , H01S5/02276 , H01S5/02469 , H01S5/02476 , H01S5/141 , H01S5/18305 , H01S5/18308 , H01S5/4018 , H01S5/423 , H01L2924/00014
Abstract: VCSEL arrays with planar electrical contacts readily adaptable for surface mounting are provided. Monolithic VCSEL arrays are configured in array patterns on two and three-dimensional surfaces for configuring optical illuminator modules. Illuminator modules are easily expandable by increasing the array size or by modularly arranging more arrays with or without a transparent substrate, in different shapes by tiling array modules monolithically on a common substrate, or by tiling small modules. The surface mountable illuminator modules are easily assembled on a thermally conductive surface that may be air or liquid cooled for efficient heat dissipation. Array modules may be integrated with other electronic circuits such as current drivers, sensors, controllers, processors, etc. on a common platform, for example, a single or multiple layer printed circuit boards (PCB) to assemble illumination systems for different applications including a gesture recognition apparatus and a battery operated portable illuminator devices.
Abstract translation: 提供了具有易于适用于表面安装的平面电触头的VCSEL阵列。 单片VCSEL阵列以阵列图案配置在二维和三维表面上，用于配置光学照明器模块。 照明器模块通过增加阵列尺寸或者通过将阵列模块整体地平铺在公共基板上或通过平铺小模块而以不同的形状通过模块化地布置更多具有或不具有透明基板的阵列来容易地扩展。 可表面安装的照明器模块容易地组装在可以是空气或液体冷却以有效散热的导热表面上。 阵列模块可以与公共平台上的其它电子电路（例如电流驱动器，传感器，控制器，处理器等）集成，例如单层或多层印刷电路板（PCB），以组合用于不同应用的照明系统，包括 手势识别装置和电池操作的便携式照明装置。
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公开(公告)号：US11728620B2
公开(公告)日：2023-08-15
申请号：US16956156
申请日：2018-12-26
Applicant: Princeton Optronics, Inc.
Inventor： Chuni Ghosh , Guoyang Xu , Qing Wang
IPC: H01S5/042 , H01S5/0236 , H01S5/023 , H01S5/02 , H01S5/183 , H01S5/42 , H01S5/34 , H01S5/0237
CPC classification number: H01S5/0421 , H01S5/0201 , H01S5/023 , H01S5/0236 , H01S5/04254 , H01S5/18305 , H01S5/3406 , H01S5/423 , H01L2224/02165 , H01L2224/05557 , H01S5/0237 , H01S5/04252
Abstract: Semiconductor devices, such as vertical-cavity surface-emitting lasers, and methods for manufacturing the same, are disclosed. The semiconductor devices include contact extensions and electrically conductive adhesive material, such as fusible metal alloys or electrically conductive composites. In some instances, the semiconductor devices further include structured contacts. These components enable the production of semiconductor devices having minimal distortion. For example, arrays of vertical-cavity surface-emitting lasers can be produced exhibiting little to no bowing. Semiconductor devices having minimal distortion exhibit enhanced performance in some instances.
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公开(公告)号：US11258234B2
公开(公告)日：2022-02-22
申请号：US16487086
申请日：2018-02-15
Applicant: Princeton Optronics, Inc.
Abstract: A miniature illuminator is described which is suitable for assembly into mobile electronics devices such as cell phones and computer tablets. Features of the invention overcome the complexity of current miniature illuminators by using single molded structure which includes all the electrical feedthrough connections and has the features necessary for accurate mounting of optical components. The molded structure includes laser safety connections which provide an electrical interrupt signal when the illuminator is damaged in a way that could result in propagation of non-eye safe illuminator beams. In an alternate operation the illuminator provides a signal when a subject gets too close to the illuminator and would receive unsafe VCSEL illuminator beam. The laser safety feature is integrated into the molded Illuminator package so that separate electrically connected structures to achieve this function are eliminated.
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公开(公告)号：US20200052466A1
公开(公告)日：2020-02-13
申请号：US16487086
申请日：2018-02-15
Applicant: Princeton Optronics, Inc.
Abstract: A miniature illuminator is described which is suitable for assembly into mobile electronics devices such as cell phones and computer tablets. Features of the invention overcome the complexity of current miniature illuminators by using single molded structure which includes all the electrical feedthrough connections and has the features necessary for accurate mounting of optical components. The molded structure includes laser safety connections which provide an electrical interrupt signal when the illuminator is damaged in a way that could result in propagation of non-eye safe illuminator beams. In an alternate operation the illuminator provides a signal when a subject gets too close to the illuminator and would receive unsafe VCSEL illuminator beam. The laser safety feature is integrated into the molded Illuminator package so that separate electrically connected structures to achieve this function are eliminated.
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