WO2020048153A1 - Dispositif photoémetteur - Google Patents

Dispositif photoémetteur Download PDF

Info

Publication number
WO2020048153A1
WO2020048153A1 PCT/CN2019/086933 CN2019086933W WO2020048153A1 WO 2020048153 A1 WO2020048153 A1 WO 2020048153A1 CN 2019086933 W CN2019086933 W CN 2019086933W WO 2020048153 A1 WO2020048153 A1 WO 2020048153A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting
region
heat
light guide
Prior art date
Application number
PCT/CN2019/086933
Other languages
English (en)
Chinese (zh)
Inventor
胡飞
田梓峰
陈彬
段银祥
徐虎
李屹
Original Assignee
深圳市绎立锐光科技开发有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市绎立锐光科技开发有限公司 filed Critical 深圳市绎立锐光科技开发有限公司
Publication of WO2020048153A1 publication Critical patent/WO2020048153A1/fr

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material

Definitions

  • the invention relates to the field of lighting, in particular to a light emitting device.
  • Laser lighting has the advantages of high brightness, long irradiation distance, and controllable irradiation spot shape, and is widely used in daily life.
  • the color of the illumination spot is required to be uniform and the irradiation distance is long. This requires that the point of the light source is near the focus of the light receiving element.
  • the local temperature of the fluorescent material will be quite high. When the temperature exceeds a certain range, a thermal quenching phenomenon will occur, and its luminous intensity will decrease, which will limit the brightness of this type of lighting source.
  • uneven light intensity received by the fluorescent material will cause uneven heat generation when the fluorescent material emits excited light.
  • the power of the excitation light is high, the luminous intensity of some regions with higher heat will be weakened, thereby Reduce the luminous efficiency and brightness of the entire light-emitting device.
  • the main object of the present invention is to provide a light emitting device, which can improve the light emitting efficiency and brightness of the light emitting device.
  • a technical solution adopted by the present invention is to provide a light emitting device including: a light source; a light guide element, which is located on a light exit side of the light source, and is configured to conduct light emitted by the light source, and the light guide
  • the element includes a light emitting surface and an outer surface, and the outer surface includes a first region close to the light emitting surface; a reflective element is provided on the light emitting surface of the light guide element, and is configured to emit the light passing through the light emitting surface.
  • Light is at least partially reflected to the first region of the light guide element; a light emitting element is located on the first region of the light guide element, and is configured to be excited by the light reflected by the reflection element to emit light; wherein The intensity of the light reflected by the reflective element is positively related to the distance of the light from the reflective element to the first region.
  • the beneficial effect of the present invention is that, unlike in the prior art, the intensity of the light reflected by the reflective element in the present invention is positively related to the distance of the light from the reflective element to the light emitting element, so that the intensity of the light received by the light emitting element is more uniform and the light is emitted.
  • the element can be uniformly excited, so that the difference in heat generated by the light-emitting element is reduced, the light-emitting element is prevented from reducing the light-emitting efficiency due to the local temperature being too high, and the light-emitting brightness of the local area of the light-emitting element is reduced, thereby improving the light-emitting device. Overall luminous efficiency and brightness.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a light emitting device provided by the present invention
  • FIG. 2 is a schematic diagram showing a relationship between an intensity of light reflected by a reflecting element and an angle in a first embodiment of a light emitting device provided by the present invention
  • FIG. 3 is a schematic diagram showing a relationship between different Gaussian scattering angles reflected by a reflecting element and a power density distribution of light received by a light emitting layer;
  • FIG. 4 is a schematic structural diagram of a second embodiment of a light emitting device provided by the present invention.
  • FIG. 5 is a schematic structural diagram of a third embodiment of a light emitting device provided by the present invention.
  • FIG. 6 is a schematic structural diagram of a fourth embodiment of a light emitting device provided by the present invention.
  • the light emitting device 100 includes a light source 10, a light guide element 20, a reflection element 30, and a light emitting element 40.
  • the light guide element 20 is located on a light-exiting side of the light source 10 and is configured to conduct light emitted by the light source 10.
  • the light guide element 20 includes a light emitting surface 21 and an outer surface 22.
  • the outer surface 22 includes a first region 221 near the light emitting surface 21.
  • the reflecting element 30 is disposed outside the light emitting surface 21 of the light guide element 20.
  • the light emitting element 40 is disposed on the first region 221 of the light guide element 20.
  • the light source 10 is a laser light source. In other implementation scenarios, the light source 10 may also be other light-emitting elements such as LEDs. It can be understood that the light emitted by the light source 10 is excitation light, and the light-emitting element 40 receives the excitation light. Irradiate and receive laser light.
  • the light guide element 20 is a cylindrical light guide rod. In other implementation scenarios, the light guide element 20 may also be a light guide plate or a light guide rod of other shapes.
  • the light guide element 20 may be composed of one or more of colorless transparent sapphire, YAG (Yttrium Aluminum Garnet), LuAG single crystal, or transparent ceramic.
  • the reflective element 30 is made by sintering silver powder with glass powder or an organic carrier.
  • the reflective element 30 is a reflective layer located outside the light emitting surface 21 of the light guide element 20. In other implementation scenarios, it may also be a reflective layer located inside the light emitting surface 21.
  • the light-emitting element 40 is a light-emitting element made of a mixture of phosphor and glass or silicone; in other implementation scenarios, a layer of light-emitting material may be coated on the first region 221 of the light-guiding element 20 Or luminescent ceramic.
  • the light source 10 When the light source 10 is turned on, light is emitted from the light guide element 20, and the light is transmitted through the light guide element 20. As shown in FIG. 1, the light is reflected multiple times in the light guide element 20 and reaches the first region 221 where the light emitting element is located.
  • the light emitting element 40 located in the first region 221 is excited after receiving the excitation light and emits a laser beam. .
  • some of the excitation light is not able to reach the first region 221 or be reflected at the first region 221, and the light emitted from the light guide element 20 after being excited to the light guide element 20 will hit the surface of the reflection element 30.
  • the reflecting element 30 changes the angle of these light rays and hits the first region 221 to excite the light emitting element 40 to emit light.
  • the intensity of the light reflected by the reflective element 30 is positively related to the distance of the light from the reflective element 30 to the first region 221, that is, when the reflected light travels a long distance from the reflective element 30 to the first region 221.
  • the light intensity of the light is strong, and when the distance transmitted from the reflective element 30 to the first region 221 is short, the light intensity of the light is weak. Because the farther the transmission distance is, the more the light intensity is lost.
  • the reflection element 30 of the present invention the light intensity of the reflected light incident on the first area 221 can be closer, and the received light intensity of a certain part is too strong. As a result, the heat in this part is too high and the brightness is reduced.
  • the reflected light is transmitted from the reflective element 30 to a portion far from the first region 221, although the intensity of the light is strong, the corresponding luminous flux in the unit solid angle is greater, but the unit solid angle is larger.
  • the corresponding irradiation area is also larger, that is, the excitation area corresponding to the light-emitting element 40 is also larger. Therefore, the light-emitting element 40 is irradiated from the reflective element.
  • the power of the excitation light per unit area in the farther part is similar to the power of the excitation light per unit area irradiated on the light emitting element 40 near the reflection element, that is, the excitation light reflected by the reflection element 30 is irradiated on the light emitting element.
  • the light intensity at 40 different positions is relatively consistent. Therefore, the light-emitting element 40 can be excited by relatively uniform irradiation, avoiding overheating of a part of the area and reducing the overall brightness and light efficiency of the light-emitting device.
  • FIG. 2 is the light intensity and angle reflected by the reflection element in the first embodiment of the light-emitting device provided by the present invention.
  • Relationship diagram In FIG. 2, the vertical axis represents the relative intensity of the light reflected by the reflecting element, and the horizontal axis represents the angle between the normal of the reflecting surface and the reflected light.
  • the solid curve is the relationship between the intensity of the reflected light (different Lambertian reflection) and the included angle; the dashed curve is the intensity and the included angle of the light reflected by the reflective element 30 in accordance with the Gaussian function distribution in the present invention. Relationship curve.
  • the reflection angle when the reflection angle is smaller, it means that the farther the light is transmitted from the reflective element 30 to the first region 221, the stronger the light intensity; similarly, when the reflection angle is larger, it means that the light is transmitted from the reflective element 30. The closer the distance to the first region 221, the weaker the light intensity.
  • a reflection structure or a reflection surface where the reflected light has an approximate Gaussian function distribution is referred to as a Gaussian reflection structure or a Gaussian reflection surface.
  • the Gaussian reflection structure means that the energy density of the beam center is high and the edge energy density is low; in the present invention, the concentration of reflected light in the light emitting segment closest to the end is avoided, and the excitation light power density distribution space of the wavelength conversion layer is uniformly distributed to the greatest extent. .
  • the angle corresponding to the included angle between the reflected light with a relative intensity of 50% and the normal of the reflecting surface is called a Gaussian angle or a Gaussian scattering angle.
  • a Gaussian angle or a Gaussian scattering angle is used to represent a reflection surface or a reflection method having such reflection characteristics.
  • the included angle corresponding to the normal of the reflecting surface corresponding to the reflected light with a relative intensity of 50% is 30 degrees. Therefore, a reflection phenomenon having such a reflection feature is referred to as a 30-degree Gaussian scattering or a Gaussian angle of 30 degrees. .
  • FIG. 3 is a schematic diagram showing the relationship between the power density distribution of the reflected light reflected by the reflective elements corresponding to different Gaussian scattering angles to the light received by the light emitting layer.
  • the horizontal axis represents the axial position of the cylindrical light-emitting layer
  • the vertical axis represents the normalized optical power density.
  • Fig. 3 shows the intensity distributions of the reflected light received by the light guide element 20 in different regions when the angle is 0, 20, 30, and 50 degrees for Gaussian scattering and diffuse reflection. It can be seen from FIG. 2 that when the Gaussian scattering angle is 20 to 30 degrees, the light intensity distribution of the reflected light is relatively uniform. Therefore, in this implementation scenario, considering efficiency and uniformity, the Gaussian scattering angle is 30 degrees. In other implementation scenarios, any angle from 20 degrees to 30 degrees can be selected.
  • the reflective element 30 is made by sintering silver powder with glass powder or an organic carrier.
  • the Gaussian angle of the reflection of the reflecting element 30 is related to the structure of the reflecting surface of the reflecting element 30. Generally speaking, it is related to the flatness and density of the reflecting element 30. The higher the flatness, the higher the density, and the more the Gaussian angle small. Therefore, by controlling the flatness and density of the reflective element 30, the purpose of controlling its Gaussian scattering angle to be between 20 and 30 degrees can be achieved.
  • the intensity of the light reflected by the reflective element in this embodiment is positively related to the distance from the reflective element to the light emitting element, so that the light intensity received by the light emitting element is more uniform, and the intensity of the light received by a part of the light guiding element is avoided. Excessive heat leads to excessive heat in this part, which reduces the luminous brightness and improves the luminous brightness of the light-emitting device.
  • FIG. 4 is a schematic structural diagram of a second embodiment of a light emitting device provided by the present invention.
  • the light-emitting device 200 includes a light source 10, a light-guiding element 20, a reflective element 30, a light-emitting element 40, a heat-conducting element 50, a first fixing element 60, a sealing element 70, a heat-radiating element 80, and a second fixing element 90.
  • the positional relationship between the light source 10, the light guide element 20, the reflection element 30, and the light emitting element 40 is basically the same as that of the light emitting device 100 provided by the present invention, and is not repeated here.
  • the heat-conducting element 50 is disposed on a side of the reflecting element 30 away from the light-guiding element 20.
  • the first fixing element 60 is used for fixing the positional relationship between the heat-conducting element 50 and the reflecting element 30.
  • the first fixing element 60 is a solder layer between the reflective element 30 and the thermally conductive element 50, and the solder layer includes at least one of silver tin, gold tin, bismuth tin, indium tin, and nano-silver paste.
  • the first fixing element 60 may also be a screw, a fixing frame, or other locking and fixing tools, or may be an adhesive material such as glue, tape, or the like.
  • the sealing element 70 is used to seal the remaining areas of the reflective element 30, the first fixing element 60, and the heat conducting element 50 except for the heat conducting area. In this implementation scenario, the sealing element 70 is located on the reflecting element 30, the first fixing element 60, and the heat conducting element 50. Outside.
  • the outer side surface 22 of the light guide element 20 further includes a second region 222 far from the light emitting surface 21.
  • the heat dissipation element 80 is located in the second region 222 of the light guide element 20, and the second fixing element 90 is used to fix the positional relationship between the heat dissipation element 80 and the light guide element 20.
  • the second fixing element 90 is an adhesive layer provided between the heat dissipation element 80 and the second region 222.
  • the refractive index of the second fixing element 90 is lower than the refractive index of the light guide element 20.
  • the second fixing element 90 may be colorless and transparent silicone or epoxy glue, and the thickness of the second fixing element is much smaller than the heat dissipation element 80.
  • the second fixing element 90 may also be other adhesive materials, or may be a fixing tool, such as a screw, a lock, and the like.
  • the heat-conducting element 50 is fixed on the side of the reflecting element 30 away from the light-guiding element 20 by welding, so as to conduct the heat generated by the reflecting element 30 to the outside in time.
  • the soldering material includes at least one of silver tin, gold tin, bismuth tin, indium tin, and nano-silver paste.
  • the heat-conducting element 50 includes a copper substrate, especially a copper substrate plated with nickel-gold.
  • the light guide element 20 also generates a lot of heat, which will limit the increase in the brightness of the light emitted by the light emitting element 40.
  • the heat dissipation element 80 is used to transfer the heat of the light guide element 20 outward.
  • the heat-conducting element 50 and the heat-dissipating element 80 can effectively dissipate the heat generated during the operation of the light-emitting device 200, thereby improving the brightness of the light emitted by the light-emitting device 200.
  • the intensity of the light reflected by the reflective element is positively related to the distance of the light from the reflective element to the light emitting element, so that the light intensity received by the light emitting element is more uniform, and the light received by a part of the light guiding element is avoided. If the intensity is too strong, the heat of the part is too high to reduce the brightness. In addition, heat dissipation elements and heat conduction elements are added, so that the temperature of the light-emitting device during operation will not be too high, which can effectively improve the brightness of the light-emitting device during operation.
  • FIG. 5 is a schematic structural diagram of a third embodiment of a light emitting device provided by the present invention.
  • the basic components of the light-emitting device 300 are basically the same as those of the light-emitting device 200.
  • the light-emitting device 100 includes a light source 10, a light guide element 20, a reflection element 30, a first sub-light-emitting element 41, a second sub-light-emitting element 42, a heat-conducting element 50, and a first A fixing element 60, a sealing element 70, a heat dissipation element 80, and a second fixing element 90.
  • the light-emitting device 100 includes a light source 10, a light-guiding element 20, a reflective element 30, a heat-conducting element 50, a first fixing element 60, a sealing element 70, a heat-dissipating element 80, and a second fixing element 90.
  • the positional relationship is the same as that of the light-emitting device 200.
  • the light-emitting element 40 in the light-emitting device 300 includes a first sub-light-emitting element 41 and a second sub-light-emitting element 42.
  • the first sub-light-emitting element 41 is a green or yellow fluorescent light-emitting layer that emits short waves
  • the second The sub-light-emitting element 42 is a red-light fluorescent light-emitting layer that emits a long wave.
  • the color of the light emitted by the first sub-light-emitting element 41 and the second sub-light-emitting element 42 may be any color, as long as the wavelengths of the two do not match, so that the light-emitting device 300 can emit light containing different colors.
  • the color rendering index of the light emitting device 300 is improved.
  • the light emitting element 40 may further include three or more light emitting layers, which further improves the color rendering index of the light emitting device 300.
  • the light emitting device 400 includes a light emitting device 100 including a light source 10, a light guiding element 20, a reflecting element 30, a light emitting element 40, a heat conducting element 50, a first fixing element 60, a sealing element 70, a heat dissipation element 80, a second fixing element 90, and a reflector cup 410.
  • the light emitting device 100 includes a light source 10, a light guide element 20, a reflective element 30, a light emitting element 40, a thermally conductive element 50, a first fixing element 60, a sealing element 70, a heat dissipation element 80, and a second fixing element 90.
  • the light-emitting device 200 is basically the same, and details are not described herein.
  • a portion of the light guide element 20 provided with the light emitting element 40 is disposed in a reflector cup 410.
  • the reflector cup 410 is used to focus and reflect the light emitted by the light emitting element 40, which can effectively improve the concentration of light emitted by the light emitting device 400 and increase the light Utilization efficiency.
  • a reflector is provided to converge and reflect the light emitted from the light emitting element, which can effectively improve the concentration of light emitted by the light emitting device and improve the utilization efficiency of light.
  • the present invention makes the intensity of the light reflected by the reflective element positively related to the distance of the light from the reflective element to the light emitting element, so that the intensity of the light received by the light emitting element is more uniform, and the heat dissipation element and the heat conduction element are added, so that The temperature of the light-emitting device during operation will not be too high, thereby increasing the light intensity emitted by the light-emitting device.
  • the color rendering index of the light-emitting device is improved, and a reflector cup is provided to converge and reflect the light emitted by the light-emitting element, which can effectively improve the concentration of light emitted by the light-emitting device and improve the utilization of light. effectiveness.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'invention concerne un dispositif photoémetteur (100), comprenant : une source de lumière (10) ; un élément de guidage de lumière (20) situé sur un côté d'émergence de lumière de la source de lumière et configuré pour conduire des rayons de lumière émis par la source de lumière, l'élément de guidage de lumière comprenant une face d'émergence de lumière (21) et une face latérale externe (22), et la face latérale externe comprenant une première région (221) à proximité de la face d'émergence de lumière ; un élément réfléchissant (30) disposé sur la face d'émergence de lumière de l'élément de guidage de lumière et utilisé pour réfléchir au moins une partie des rayons de lumière émis depuis la face d'émergence de lumière vers la première région de l'élément de guidage de lumière ; et un élément photoémetteur (40) situé sur la première région de l'élément de guidage de lumière et utilisé pour émettre des rayons de lumière en étant excité par les rayons de lumière réfléchis par l'élément réfléchissant, l'intensité des rayons de lumière réfléchie par l'élément réfléchissant étant corrélée positivement à la distance des rayons de lumière de l'élément réfléchissant vers la première région. La luminosité des rayons lumineux émis par un tel dispositif électroluminescent est améliorée.
PCT/CN2019/086933 2018-09-04 2019-05-15 Dispositif photoémetteur WO2020048153A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811027512 2018-09-04
CN201811027512.1 2018-09-04

Publications (1)

Publication Number Publication Date
WO2020048153A1 true WO2020048153A1 (fr) 2020-03-12

Family

ID=69722990

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/086933 WO2020048153A1 (fr) 2018-09-04 2019-05-15 Dispositif photoémetteur

Country Status (2)

Country Link
CN (1) CN110925625B (fr)
WO (1) WO2020048153A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901186A (zh) * 2005-07-21 2007-01-24 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 结合光致发光材料使用多光源发射输出光的装置和方法
CN102345803A (zh) * 2010-07-30 2012-02-08 海洋王照明科技股份有限公司 Led直管光源
CN104298060A (zh) * 2014-10-15 2015-01-21 郭振扬 光源组件、光源装置以及发光方法
CN205746116U (zh) * 2016-06-27 2016-11-30 南安市汇达电子科技有限公司 Led灯
CN108361566A (zh) * 2017-01-25 2018-08-03 深圳市绎立锐光科技开发有限公司 一种光源装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009004597A2 (fr) * 2007-07-05 2009-01-08 Udayan Kanade Source de lumière linéaire multicolore
JP2012174551A (ja) * 2011-02-22 2012-09-10 Harison Toshiba Lighting Corp 発光装置
ES2787826T3 (es) * 2011-04-28 2020-10-19 L E S S Ltd Aparatos de guía de ondas para sistemas de iluminación

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1901186A (zh) * 2005-07-21 2007-01-24 安华高科技杰纳勒尔Ip（新加坡）私人有限公司 结合光致发光材料使用多光源发射输出光的装置和方法
CN102345803A (zh) * 2010-07-30 2012-02-08 海洋王照明科技股份有限公司 Led直管光源
CN104298060A (zh) * 2014-10-15 2015-01-21 郭振扬 光源组件、光源装置以及发光方法
CN205746116U (zh) * 2016-06-27 2016-11-30 南安市汇达电子科技有限公司 Led灯
CN108361566A (zh) * 2017-01-25 2018-08-03 深圳市绎立锐光科技开发有限公司 一种光源装置

Also Published As

Publication number Publication date
CN110925625A (zh) 2020-03-27
CN110925625B (zh) 2023-01-17

Similar Documents

Publication Publication Date Title
KR102114607B1 (ko) 레이저 광원장치
WO2014203484A1 (fr) Élément de conversion de longueur d'onde, source de lumière et phare de véhicule
US9136444B2 (en) LED white light source with remote photoluminescent reflecting converter
US20170009945A1 (en) Light source device and illumination apparatus
US10347801B2 (en) Light emitting device
JP2019525389A (ja) 光変換パッケージ
US9347622B2 (en) LED white light source with remote photoluminescent converter
EP3739257B1 (fr) Appareil de conversion de longueur d'onde
WO2017077739A1 (fr) Luminophore, dispositif électroluminescent, dispositif d'éclairage et procédé de production de luminophore
JP6997869B2 (ja) 波長変換素子および光源装置
CN109578823B (zh) 一种激光二极管和荧光粉膜同时冷却的激光白光光源
WO2017043121A1 (fr) Dispositif électroluminescent et dispositif d'éclairage
CN113701125A (zh) 透射式波长转换装置及其发光装置
WO2020048153A1 (fr) Dispositif photoémetteur
CN209309907U (zh) 一种波长转换装置、光源模组及照明灯
CN111367139A (zh) 荧光组件以及激光投影仪
CN109282246A (zh) 一种波长转换装置、光源模组及照明灯
CN113551203A (zh) 透射式波长转换装置及其发光装置
TWI777891B (zh) 發光裝置
WO2016123789A1 (fr) Substrat de rayonnement conducteur de chaleur et composant électroluminescent à dissipation de chaleur par rayonnement réfléchissant
CN110906272B (zh) 一种光源装置及车灯
US20210202912A1 (en) Wavelength conversion element
JP2014187077A (ja) 発光装置
CN116954009A (zh) 光源装置以及光机系统
CN111365676A (zh) 一种发光装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19857565

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19857565

Country of ref document: EP

Kind code of ref document: A1