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公开(公告)号：US10258715B1
公开(公告)日：2019-04-16
申请号：US15905593
申请日：2018-02-26
Applicant: RayVio Corporation
Inventor： Douglas A. Collins , Li Zhang , Saijin Liu , Yitao Liao
IPC: A61L9/00 , A61L9/20 , H01L33/48 , H01L33/32 , H01L33/06 , H01L27/15 , H01L33/40 , H01L33/58 , C02F1/32 , H01L25/16 , H01L33/20
Abstract: Embodiments of the invention include a vessel having an opening and a detachable cover for covering the opening. The cover includes a semiconductor device with an active layer disposed between an n-type region and a p-type region. The active layer emits radiation having a peak wavelength in a UV range. The cover also includes a sensor for detecting whether the cover is covering the opening.
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公开(公告)号：US10246348B2
公开(公告)日：2019-04-02
申请号：US15820184
申请日：2017-11-21
Applicant: RayVio Corporation
Inventor： Douglas A. Collins , Li Zhang , Yitao Liao
Abstract: Embodiments of the invention include an elongate chamber. A UV source includes a semiconductor device, the semiconductor device including an active layer disposed between an n-type region and a p-type region. The active layer emits radiation having a peak wavelength in a UV range. The semiconductor device is positioned on a wall of the elongate chamber. An inner surface of the elongate chamber is reflective.
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公开(公告)号：US10224443B2
公开(公告)日：2019-03-05
申请号：US15489609
申请日：2017-04-17
Applicant: RayVio Corporation
Inventor： Douglas A. Collins , Faisal Sudradjat , Robert C. Walker , Yitao Liao
IPC: H01L31/0304 , H01L33/14 , H01L33/20 , H01L31/054 , H01L31/101 , H01L51/00 , H01L33/22
Abstract: An LED device capable of emitting electromagnetic radiation ranging from about 200 nm to 365 nm, the device. The device includes a substrate member, the substrate member being selected from sapphire, silicon, quartz, gallium nitride, gallium aluminum nitride, or others. The device has an active region overlying the substrate region, the active region comprising a light emitting spatial region comprising a p-n junction and characterized by a current crowding feature of electrical current provided in the active region. The light emitting spatial region is characterized by about 1 to 10 microns. The device includes an optical structure spatially disposed separate and apart the light emitting spatial region and is configured to facilitate light extraction from the active region.
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公开(公告)号：US20180182939A1
公开(公告)日：2018-06-28
申请号：US15389308
申请日：2016-12-22
Applicant: RayVio Corporation
Inventor： Saijin Liu , Douglas A. Collins , Yitao Liao
IPC: H01L33/58
CPC classification number: H01L33/58 , H01L33/0095 , H01L33/52 , H01L2933/005 , H01L2933/0058
Abstract: Embodiments of the invention include a light emitting diode (UVLED), the UVLED including a semiconductor structure with an active layer disposed between an n-type region and a p-type region. The active layer emits UV radiation. The UVLED is attached to a mount. A lens is disposed over the UVLED. A surface of the lens closest to the UVLED is the same width as the mount.
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Patent Agency Ranking
公开(公告)号：US20180006203A1
公开(公告)日：2018-01-04
申请号：US15200991
申请日：2016-07-01
Applicant: RayVio Corporation
Inventor： Saijin Liu , Xiaoning Wang , Yitao Liao , Douglas A. Collins
Abstract: Embodiments of the invention include a light emitting diode (UVLED), the UVLED including a semiconductor structure with an active layer disposed between an n-type region and a p-type region. The active layer emits UV radiation. The UVLED is disposed on a mount. A reflective layer is disposed on a surface of the mount surrounding the UVLED.
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公开(公告)号：US09789215B1
公开(公告)日：2017-10-17
申请号：US15094873
申请日：2016-04-08
Applicant: RayVio Corporation
Inventor： Douglas A. Collins , Li Zhang , Yitao Liao
CPC classification number: A61L2/10 , A61L9/20 , C02F1/325 , C02F2201/3222 , C02F2201/3228 , C02F2201/326 , C02F2303/04
Abstract: Embodiments of the invention include an ultraviolet (UV) source, the UV source including a semiconductor device comprising an active layer disposed between an n-type region and a p-type region. The active layer emits radiation having a peak wavelength in a UV range. A reflector cup is disposed around the UV source. A transparent cover is disposed over the reflector cup.
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公开(公告)号：US20170222075A1
公开(公告)日：2017-08-03
申请号：US15489609
申请日：2017-04-17
Applicant: RayVio Corporation
Inventor： Douglas A. Collins , Faisal Sudradjat , Robert C. Walker , Yitao Liao
IPC: H01L31/0304 , H01L31/054 , H01L31/101 , H01L51/00
CPC classification number: H01L31/03044 , H01L31/0543 , H01L31/0547 , H01L31/101 , H01L33/14 , H01L33/20 , H01L33/22 , H01L51/0081 , H01L51/0082 , H01L2924/10344 , Y02E10/52
Abstract: An LED device capable of emitting electromagnetic radiation ranging from about 200 nm to 365 nm, the device. The device includes a substrate member, the substrate member being selected from sapphire, silicon, quartz, gallium nitride, gallium aluminum nitride, or others. The device has an active region overlying the substrate region, the active region comprising a light emitting spatial region comprising a p-n junction and characterized by a current crowding feature of electrical current provided in the active region. The light emitting spatial region is characterized by about 1 to 10 microns. The device includes an optical structure spatially disposed separate and apart the light emitting spatial region and is configured to facilitate light extraction from the active region.
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公开(公告)号：US09461198B2
公开(公告)日：2016-10-04
申请号：US14796763
申请日：2015-07-10
Applicant: RayVio Corporation
Inventor： Yitao Liao , Douglas A. Collins
CPC classification number: H01L33/0075 , H01L33/0025 , H01L33/007 , H01L33/06 , H01L33/20 , H01L33/325 , H01L33/58
Abstract: In the present invention, a fabrication process for epitaxy onto back-side patterned substrate, where the substrate patterns were defined prior to epitaxy and therefore simplify post growth processing. Specifically, for LED devices, said fabrication process reduces the post growth processing steps required to obtain high LEE due to strong scattering of the back-side features defined on the substrate. The features defined on the back-side patterned substrate scatters strongly with light emitted from the LED devices. Methods of obtaining such features include wet and dry etching.
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公开(公告)号：US20160271280A1
公开(公告)日：2016-09-22
申请号：US14661546
申请日：2015-03-18
Applicant: RayVio Corporation
Inventor： Yitao Liao , Douglas A. Collins , Theodore J. de Jony , Robert C. Walker , Elaine Taylor
CPC classification number: A61L2/10 , C02F1/008 , C02F1/325 , C02F2201/3222 , C02F2201/3224 , C02F2201/3227 , C02F2201/3228 , C02F2201/326 , C02F2209/001 , C02F2209/44 , C02F2303/04 , G06F2203/0338 , H05B33/0854
Abstract: A variety of applications for UV LEDs that are integrated into a system are described, where the UV light is used for disinfection of air or surfaces, or used to detect the scattering light by particles, or used for skin treatment. In one embodiment, the UV light from the UV LEDs is generated internal to a housing and is optically coupled to a transparent or translucent surface touched by the human finger, such as a touch screen, a fingerprint scanner, backlit buttons or keys, a toggle of a light switch, a door knob, etc. The UV light is emitted through the touched surface to periodically disinfect the surface. A visual indication of the UV LEDs being energized is provided for safety, such as energizing visible light LEDs or a phosphor on a portion of the touched surface.
Abstract translation: 描述了集成到系统中的UV LED的各种应用，其中UV光用于空气或表面的消毒，或用于通过颗粒检测散射光或用于皮肤处理。 在一个实施例中，来自UV LED的UV光在壳体内部产生，并且光学耦合到由人类手指触摸的透明或半透明表面，例如触摸屏，指纹扫描器，背光按钮或键，切换 的灯开关，门把手等。紫外光通过触摸的表面发射，以周期性地消毒表面。 为了安全起见，提供了UV通电的视觉指示，例如激发可见光LED或触摸表面的一部分上的荧光体。
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