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71.发明申请公开(公告)号：US20190341531A1
公开(公告)日：2019-11-07
申请号：US15972152
申请日：2018-05-05
申请人： Cree, Inc.
摘要： A solid state lighting device includes at least one electrically activated solid state light emitter configured to stimulate emissions of first through third lumiphoric materials having peak wavelengths in ranges of from 485 nm to 530 nm, from 575 nm to 595 nm, and from 605 nm to 640 nm, respectively (or subranges thereof defined herein), with the third peak having a full width half maximum value of less than 60 nm. The resulting device generates aggregated emissions having a suitably high color rendering index (e.g., CRI Ra) value (e.g., at least 70), and also having a spectral power distribution with a Melanopic/Photopic ratio within a specified target range as a function of correlated color temperature, thereby providing increased perceived brightness.
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公开(公告)号：US20190333791A1
公开(公告)日：2019-10-31
申请号：US15967529
申请日：2018-04-30
申请人： Cree, Inc.
IPC分类号： H01L21/67 , H01L33/00 , H01L25/075 , H01L21/683
摘要： An apparatus and associated method for high speed and/or mass transfer of electronic components onto a substrate comprises transferring, using an ejector assembly, electronics components (e.g., light emitting devices) from a die sheet onto an adhesive receiving structure to form a predefined pattern including electronic components thereon, and then transferring the electronic components defining the predefined pattern onto a substrate (e.g., a translucent superstrate) for light emission therethrough to create a high-density (e.g., high resolution) display device utilizing, for example, mini- or micro-LED display technologies.
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公开(公告)号：US20190333767A1
公开(公告)日：2019-10-31
申请号：US16502771
申请日：2019-07-03
申请人： Cree, Inc.
发明人： Saptharishi Sriram , Yueying Liu
IPC分类号： H01L21/266 , H01L29/08 , H01L29/778 , H01L29/20
摘要： A transistor device is provided. The transistor device includes a substrate, a channel layer on the substrate, the channel layer including a GaN material, a barrier layer that is on the channel layer and that includes an AlGaN material, a drain electrode that is on the barrier layer in a drain region of the device, a source ohmic structure that is at least partially recessed into the barrier layer in a source region of the device, a source electrode that is on the source ohmic structure and a gate contact that is on the barrier layer and that is in a gate region of the device that is between the drain region and the source region.
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公开(公告)号：US10459142B2
公开(公告)日：2019-10-29
申请号：US15481206
申请日：2017-04-06
申请人： Cree, Inc.
发明人： John W. Durkee , Kurt S. Wilcox , Eric J. Tarsa
IPC分类号： F21V8/00 , F21S8/06 , F21V21/005 , F21V23/06 , F21Y101/00 , F21Y103/10 , F21Y115/10 , F21Y103/33 , F21V7/00 , F21V17/10 , F21V23/00
摘要： A luminaire comprises an optical element. The optical element comprises a coupling portion that comprises a coupling cavity that extends along a length of the optical element. The coupling cavity is configured to receive at least one light emitting diode. The optical element further comprises first and second sections extending away from the coupling portion of the optical element along the length of the coupling cavity. The first section comprises a first thickness closer to the coupling portion and a second thickness further from the coupling portion. The first thickness is greater than the second thickness. The second section comprises a third thickness closer to the coupling portion and a fourth thickness further from the coupling portion. The third thickness is greater than the fourth thickness. Light is extracted out of extraction features of opposing sides of at least one section.
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75.发明申请公开(公告)号：US20190326230A1
公开(公告)日：2019-10-24
申请号：US15960693
申请日：2018-04-24
申请人： Cree, Inc.
发明人： Kyle Bothe , Dan Namishia , Fabian Radulescu , Scott Sheppard
IPC分类号： H01L23/00 , H01L23/528 , H01L23/31 , H01L23/66 , H01L23/64 , H01L25/065 , H01L25/00
摘要： A packaged electronic circuit includes a substrate having an upper surface, a first metal layer on the upper surface of the substrate, a first polymer layer on the first metal layer opposite the substrate, a second metal layer on the first polymer layer opposite the first metal layer, a dielectric layer on the first polymer layer and at least a portion of the second metal layer and a second polymer layer on the dielectric layer.
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公开(公告)号：US20190323693A1
公开(公告)日：2019-10-24
申请号：US15957991
申请日：2018-04-20
申请人： Cree, Inc.
发明人： Robert Bowser , John Roberts , Randy Bernard
摘要： A lighting fixture includes a fixture body, a lighting bay, a light source, and an auxiliary bay. The lighting bay is in a first portion of the fixture body. The light source is in the lighting bay, and is configured to provide light suitable for general illumination. The auxiliary bay is adjacent to the lighting bay in a second portion of the fixture body. The auxiliary bay includes a mounting surface suitable for mounting an auxiliary device in the auxiliary bay and an auxiliary bay frame surrounding the auxiliary bay, which supports and therefore allows for the installation of a removable auxiliary bay cover over the auxiliary bay. Providing the auxiliary bay in the fixture body allows auxiliary devices to be installed in a ceiling without any changes to the ceiling.
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公开(公告)号：US10431568B2
公开(公告)日：2019-10-01
申请号：US15264547
申请日：2016-09-13
申请人： Cree, Inc.
摘要： Light emitting diode (LED) devices, components and systems are provided. LED devices include a submount with a plurality of LEDs disposed thereon. The LEDs mounted on a submount can be spaced apart at predetermined dimensions to control the gaps between each of the plurality of LEDs. By controlling the gaps between LEDs the optical output from the LED device can be optimized, including improving emission and/or color uniformity, minimizing or eliminating deadspots in the light emission, and/or minimizing or eliminating an optical cross. A phosphor layer can be disposed on the plurality of LEDs and between the LEDs in the gaps therebetween.
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公开(公告)号：US10424702B2
公开(公告)日：2019-09-24
申请号：US14183218
申请日：2014-02-18
申请人： CREE, INC.
摘要： LED packages are disclosed that are compact and efficiently emit light, and can comprise encapsulants with curved and planar surfaces. The packages can comprise a submount with a one or a plurality of LEDs, and in those with a plurality of LEDs each of the LEDs can emit the same or different wavelengths of light than the others. A blanket conversion material layer can be included on at least some of the LEDs and the submount. The encapsulant can be on the submount, over at least some of the LEDs, with each of the planar surfaces being vertical and aligned with one of the edges of the submount. The packages can also comprise reflective layers to minimize losses due to light absorption, which in turn can increase the overall package emission efficiency.
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公开(公告)号：US10422944B2
公开(公告)日：2019-09-24
申请号：US14726152
申请日：2015-05-29
申请人： Cree, Inc.
IPC分类号： G02B6/00 , F21V8/00 , G02B6/30 , G02B6/32 , G02B6/34 , G02B6/24 , G02B6/26 , F21S8/02 , F21V7/00 , F21K9/61
摘要： According to one aspect, an optical waveguide includes a first waveguide portion and a second waveguide portion adjacent to and separate from the first waveguide portion. The waveguide portions include light coupling portions that are at least partially aligned and adapted to receive light developed by a light source. The first waveguide portion further has a first major surface with light direction features and a second major surface opposite the first major surface. The second waveguide portion further has a third major surface proximate the second major surface with an air gap disposed therebetween and a fourth major surface opposite the third major surface wherein the fourth major surface includes a cavity extending therein.
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公开(公告)号：US10411659B2
公开(公告)日：2019-09-10
申请号：US15879621
申请日：2018-01-25
申请人： Cree, Inc.
发明人： Haedong Jang , Timothy Canning , Bjoern Herrmann , Zulhazmi Mokhti , Frank Trang , Richard Wilson
摘要： An amplifier circuit includes an input port, an output port, and a reference potential port, an RF amplifier device having an input terminal electrically coupled to the input port, an output terminal electrically coupled to the output port, and a reference potential terminal electrically coupled to the reference potential port. An impedance matching network is electrically connected to the output terminal, the reference potential port, and the output port. The impedance matching network includes a reactive efficiency optimization circuit that forms a parallel resonant circuit with a characteristic output impedance of the peaking amplifier at a center frequency of the fundamental frequency range. The impedance matching network includes a reactive frequency selective circuit that negates a phase shift of the RF signal in phase at the center frequency and exhibits a linear transfer characteristic in a baseband frequency range.
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