公开(公告)号：US11365867B2

公开(公告)日：2022-06-21

申请号：US17238711

申请日：2021-04-23

申请人： NICHIA CORPORATION

发明人： Motokazu Yamada

IPC分类号： F21V13/14 ,  F21V9/08 ,  F21V19/00 ,  F21V7/00 ,  F21V5/04 ,  F21V15/01 ,  F21V3/00 ,  F21V9/30 ,  F21V3/10 ,  F21V3/12 ,  F21V1/17 ,  F21V3/08 ,  F21V7/28 ,  F21Y115/10 ,  F21Y113/13

摘要： A light emitting device includes a base having a light reflecting surface and having a first side on which the light reflecting surface is provided, light sources mounted on the first side, and a half mirror disposed opposite to the base to reflect a part of incident light and to transmit another part of the incident light. Each of the light sources includes a reflecting layer on an upper surface of each of the light sources. The half mirror has an oblique reflectance with respect to wavelengths of light emitted from the light sources in a case where the light travels obliquely toward the half mirror. The half mirror has a perpendicular reflectance with respect to the wavelengths in a case where the light travels perpendicularly toward the half mirror. The oblique reflectance is smaller than the perpendicular reflectance.

公开(公告)号：US11251164B2

公开(公告)日：2022-02-15

申请号：US14453482

申请日：2014-08-06

申请人： CreeLED, Inc.

发明人： Fan Zhang ,  James Ibbetson ,  Bernd Keller ,  Thodore Lowes ,  Antony Van De Ven ,  Deborah Kircher ,  Tao Feng Gilbert ,  Peter Andrews

IPC分类号： H01L25/075 ,  H01L33/54 ,  H01L33/60 ,  H01L33/50 ,  F21V3/12 ,  F21V3/02 ,  F21K9/64 ,  F21K9/232 ,  F21Y113/13 ,  F21Y115/10 ,  F21Y113/00

摘要： Light emitting diodes are disclosed that utilize multiple conversion materials in the conversion process in order to achieve the desired emission color point. Different embodiments of the present invention can comprise different phosphor types in separate layers on, above or around one or a plurality of LED chips to achieve the desired light conversion. The LEDs can then emit a desired combination of light from the LED chips and conversion material. In some embodiments, conversion materials can be applied as layers of different phosphor types in order of longest emission wavelength phosphor first, followed by shorter emission phosphors in sequence as opposed to applying in a homogeneously mixed phosphor converter. The conversion material layers can be applied as a blanket over the LED chips and the area surrounding the chip, such as the surface of a submount holding the LED chips.

公开(公告)号：US10546846B2

公开(公告)日：2020-01-28

申请号：US12842639

申请日：2010-07-23

申请人： Theodore Douglas Lowes

发明人： Theodore Douglas Lowes

IPC分类号： H01L25/16 ,  F21V3/12

摘要： A light emitter device, package, or lamp that comprises and light emitter and a light transmission control material to mask the appearance of at least the light emitter. In one embodiment, a light emitting diode (LED) based lamp is disclosed, comprising an LED light source. A phosphor is arranged remote to the light source such that light emitted from the light source passes through this phosphor and is converted by this phosphor. A light transmission control material is applied at least partially outside the LED light source and the phosphor to reversibly mask the appearance of the LED light source and the phosphor. The light transmission control material is less masking when the LED light source is active. A method for masking the appearance of inactive light emitters is also disclosed that comprising providing at least one light emitter. Each of the at least one light emitters is provided with a light transmission control material over the light emitters to reversibly mask the appearance of the light emitters while the light emitters are inactive. The light transmission control material is less masking when the LED light source is active.

公开(公告)号：US11598509B2

公开(公告)日：2023-03-07

申请号：US17117330

申请日：2020-12-10

申请人： SEOUL SEMICONDUCTOR CO., LTD.

发明人： Chung Hoon Lee

IPC分类号： F21V13/00 ,  F21V13/08 ,  F21V7/24 ,  F21V9/30 ,  F21V3/12 ,  H01L33/60 ,  H01L25/075 ,  H01L33/50 ,  F21V7/04 ,  G02F1/13357 ,  F21Y105/16 ,  F21Y115/10 ,  H01L33/32 ,  H01L33/06 ,  H01L33/12 ,  H01L33/14 ,  H01L33/42 ,  H01L33/46 ,  G02F1/1335

摘要： The present invention relates to a backlight unit for use in a display device. The backlight unit includes a circuit board, at least one light-emitting diode chip mounted on the circuit board, a plurality of reflection members arranged on the upper part of the light-emitting diode chip, and a light diffusing member. The light diffusing member has an incident surface on which light enters and an emitting surface from which light is emitted. The light diffusing member is arranged on the upper part of the circuit board. The plurality of reflection members are stacked on each other and reflect a part of light emitted from the upper surface of the light-emitting diode chip.

公开(公告)号：US20220086975A1

公开(公告)日：2022-03-17

申请号：US17536857

申请日：2021-11-29

申请人： ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO., LTD.

发明人： TAO JIANG ,  Wei-Hong Xu ,  YUKIHIRO SAITO ,  HAYATO UNAGIIKE ,  Ai-Ming Xiong ,  Jun-Feng Xu ,  Yi-Ching Chen

IPC分类号： H05B45/00 ,  F21K9/232 ,  F21V15/04 ,  F21K9/61 ,  F21V3/12 ,  F21V3/08

摘要： An LED light bulb includes a lamp housing, an LED filament in the lamp housing and a power module. The LED filament includes a first and a second LED sections, a conductive section, a first and a second conductive electrodes and a light conversion layer. Each LED section includes LED chips connected in serial to from a LED string. The conductive section connects one end of the LED string of the first LED section with one end of the LED string of the second sections. The polarities of the ends of the LED strings are the same. The other ends of the LED strings are respectively connected to the first and the second conductive electrodes. The light conversion layer is coated on at least two sides of the LED chips. The power module's terminals are connected to the conductive section and the conductive electrodes.

公开(公告)号：US20220086974A1

公开(公告)日：2022-03-17

申请号：US17525994

申请日：2021-11-15

申请人： ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO.,LTD

发明人： TAO JIANG ,  WEI-HONG XU ,  YUKIHIRO SAITO ,  HAYATO UNAGIIKE ,  AI-MING XIONG ,  JUN-FENG XU ,  YI-CHING CHEN

IPC分类号： H05B45/00 ,  F21K9/232 ,  F21V15/04 ,  F21K9/61 ,  F21V3/12 ,  F21V3/08

摘要： An LED light bulb comprising a lamp housing, a bulb base, connected to the lamp housing, a stem connected to the bulb base and located in the lamp housing; an LED filament, disposed in the lamp housing, where points of the LED filament in an xyz coordinates are defined as x, y, and z, an x-y plane of the xyz coordinates is perpendicular to the height direction of the LED light bulb, an z-axis of xyz coordinates is parallel with the stem, and the projection of the LED filament on the x-y plane, y-z plane and x-z plane respectively has a length L1, L2 and L3, and the length L1, the length L2, and the length L3 are substantially in a ratio of 1:(0.5 to 1):(0.6 to 0.9).

公开(公告)号：US11015784B2

公开(公告)日：2021-05-25

申请号：US16288586

申请日：2019-02-28

申请人： NICHIA CORPORATION

发明人： Motokazu Yamada

IPC分类号： F21V3/00 ,  F21V13/14 ,  F21V19/00 ,  F21V7/00 ,  F21V9/08 ,  F21V5/04 ,  F21V15/01 ,  F21V3/10 ,  F21V3/12 ,  F21V9/30 ,  F21V1/17 ,  F21V3/08 ,  F21V7/28 ,  F21Y115/10 ,  F21Y113/13

摘要： A light emitting device includes a base, light sources, wall portions, and a half mirror. The base has a light reflecting surface and has a first side on which the light reflecting surface is provided. The light sources are mounted on the first side of the base. Each of the wall portions surrounds each of the plurality of light sources. The half mirror is to reflect a part of incident light and to transmit another part of the incident light. The half mirror is disposed opposite to the base such that the light sources are provided between the half mirror and the base.

公开(公告)号：US10451251B2

公开(公告)日：2019-10-22

申请号：US13758763

申请日：2013-02-04

申请人： CREE, INC.

发明人： Michael S. Leung ,  Eric J. Tarsa ,  John A. Edmond

IPC分类号： F21V13/00 ,  F21V13/04 ,  F21V7/00 ,  F21V29/74 ,  F21K9/232 ,  F21K9/64 ,  F21K9/68 ,  F21V13/02 ,  F21V29/77 ,  F21Y115/10 ,  F21Y107/40 ,  F21V3/08 ,  F21V3/12

摘要： Lamps and bulbs are disclosed generally comprising different combinations and arrangements of a light source, a reflective optical element, and a separate diffusing layer. This arrangement allows for the fabrication of lamps and bulbs that are efficient, reliable and cost effective and can provide an essentially omni-directional emission pattern, even with a light source comprised of an arrangement of LEDs. The lamps according to the present invention can also comprise thermal management features that provide for efficient dissipation of heat from the LEDs, which in turn allows the LEDs to operate at lower temperatures. The lamps can also comprise optical elements to help change the emission pattern from the generally directional pattern of the LEDs to a more omni-directional pattern.

公开(公告)号：US10274166B2

公开(公告)日：2019-04-30

申请号：US15653071

申请日：2017-07-18

申请人： Intematix Corporation

发明人： Yi-Qun Li ,  Haitao Yang ,  Hyung-Chul Lee ,  Charles Edwards

IPC分类号： F21K9/27 ,  F21K9/64 ,  F21V3/02 ,  F21V3/12 ,  F21V5/04 ,  F21V7/00 ,  F21V9/30 ,  F21K9/232 ,  F21V13/02 ,  F21V13/14 ,  F21Y103/10 ,  F21Y107/30 ,  F21Y115/10 ,  F21Y115/30

摘要： A solid-state linear lamp comprises a co-extruded component, the co-extruded component comprising an elongate lens and a layer of photoluminescent material. The elongate lens is for shaping light emitted from the lamp and comprises an elongate interior cavity. The layer of a photoluminescent material is located on an interior wall of the elongate interior cavity. The lamp further comprises an array of solid-state light emitters configured to emit light into the elongate interior cavity.

公开(公告)号：US10113714B2

公开(公告)日：2018-10-30

申请号：US15301593

申请日：2015-03-23

申请人： PHILIPS LIGHTING HOLDING B.V.

发明人： Dirk Valentinus René Engelen ,  Tim Dekker ,  Bartel Marinus Van De Sluis ,  Philip Steven Newton

IPC分类号： F21V14/04 ,  F21V9/30 ,  F21V3/12 ,  F21S10/02 ,  F21S6/00 ,  F21S8/06 ,  F21S10/00 ,  F21V7/00 ,  F21V7/05 ,  F21V7/22 ,  F21V11/10 ,  F21V14/02 ,  F21V19/02 ,  F21S10/04 ,  F21K9/61 ,  F21K9/64 ,  F21S8/04 ,  F21V3/00 ,  F21V23/00 ,  F21V8/00 ,  F21W121/00 ,  F21V23/04 ,  F21Y115/10

摘要： Apparatus and methods are described herein for lighting control. A lighting unit (100, 200, 300, 400, 500) may include a base (104, 204, 304, 404) adapted to be inserted into a socket (106, 206, 306) of a luminaire/lighting fixture. The lighting unit may include one or more light sources (108, 208, 308, 408, 508) to emit light at least in a first direction and one or more reflective elements (110, 210, 310, 410, 510, 610) arranged to define an aperture (112, 212, 312, 412, 512, 612) through which a first spatial portion (114, 214, 314, 414, 514) of the emitted light continues in the first direction, prevent a second spatial portion (116, 216, 316, 416, 516) of the emitted light from continuing in the first direction, and reflect at least part of the second spatial portion of the light in a second direction different than the first direction.