CN112377829A - Light emitting device - Google Patents

Light emitting device Download PDF

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Publication number
CN112377829A
CN112377829A CN202011592200.2A CN202011592200A CN112377829A CN 112377829 A CN112377829 A CN 112377829A CN 202011592200 A CN202011592200 A CN 202011592200A CN 112377829 A CN112377829 A CN 112377829A
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CN
China
Prior art keywords
refraction
irradiation
piece
support
refracting
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Pending
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CN202011592200.2A
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Chinese (zh)
Inventor
邵子敏
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Guangzhou Yiming Photoelectric Technology Co ltd
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Guangzhou Yiming Photoelectric Technology Co ltd
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Application filed by Guangzhou Yiming Photoelectric Technology Co ltd filed Critical Guangzhou Yiming Photoelectric Technology Co ltd
Priority to CN202011592200.2A priority Critical patent/CN112377829A/en
Publication of CN112377829A publication Critical patent/CN112377829A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/69—Details of refractors forming part of the light source
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • 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
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

The invention provides a light-emitting device, comprising an irradiation mechanism and a refraction mechanism; the refraction mechanism comprises a refraction device; the refraction device comprises a middle refraction piece and a refraction part; more than one refraction part is arranged; the refraction part comprises a convex part and a concave part; the convex part and the concave part are arranged on the middle refracting part; the driving device drives the refraction device to rotate; when the light rays are refracted through the refracting device; the projection of the refracted light rays on the surface of the object is moved; thus, dynamic light effect can be generated; by providing the convex portion and the concave portion; the light rays are diffused; therefore, the irradiation range of the light rays is wide under the action of the refraction device, and meanwhile, the reflected light rays passing through the convex parts or the concave parts can act with the convex parts and the concave parts again; the convex part is in a photovoltaic structure; thus, under the action of the refraction device, the output light is also in a wavy ripple structure; thus, the light rays can generate a water ripple effect under the action of the refracting device.

Description

Light emitting device
Technical Field
The invention relates to the technical field of LED lamps, in particular to a light-emitting device.
Background
The water element is a popular element, ripples are a simple fluctuation phenomenon of the water surface, and are accompanied by corresponding light reflection and refraction, so that the water element has a fairy beauty. The dynamic ripples need to be realized, the current technique commonly used is LED landscape lamp, thereby it is usually that LED lamps and lanterns rotate thereby to realize the effect of a plurality of facula dynamic changes on projecting to the object, but often the too big not easy realization of machine is projected the not high facade of bush etc. and is changed the dynamic change of facula, or because the protection level is not enough and can not permanently use outdoors and has hindered the application of dynamic ripples shadow in the open air, the effect that interim application reaches can not satisfy people's pursuit. The traditional technology is not enough in the selection of light source, light path components and parts, optical axis length design, and it may leak to rely on the unipolar plano-convex lens formation of image to focus at light path components and parts especially, and the optical axis design overlength, dynamic effect rely on digital display, and the effect that can reach is extremely limited, and the cost that needs to reach the effect of ideal on traditional technology moreover spends is difficult to estimate.
In order to solve the problems, a dynamic semicircular ripple effect lamp is disclosed in the patent document with the Chinese application number of 201810911717.X and the publication number of 2018.11.16; the lamp comprises: the LED lamp comprises a lamp body, a switching power supply, an LED lamp source, a lens, a motor, a hollow roller, a cambered surface reflecting device and a controller; the LED lamp source, the hollow roller, the lens, the motor and the controller are arranged in the lamp body, an output shaft of the motor is in transmission connection with the hollow roller, and the lens covers the LED lamp source; the cambered surface reflecting device is arranged at the top of the lamp body; the switching power supply is arranged at the bottom of the lamp body and is electrically connected with the controller; the LED lamp source and the motor are electrically connected with the controller.
But the lamp cuts the light emitted by the LED lamp source through the hollow roller; namely, the hollow roller rotates; the hollow roller shields part of light emitted by the LED light source; so that the light rays generate bright and dark textures in a zebra line shape; then the light is reflected by a cambered surface reflector; the hollow roller shields part of light; thus, the light emitting efficiency of the lamp is reduced; the appearance of the ripple effect is poor; meanwhile, the cambered surface reflector of the lamp is a smooth mirror surface; the bright and dark textures irradiate the cambered surface reflector to perform mirror reflection; the lamp generates ripple effect by mirror reflection. Meanwhile, the lamp can generate monochromatic light through the monochromatic light-emitting LED chip; multicolor light can be generated through the multicolor luminous LED chip; it cannot generate light of multiple colors by a single color LED chip.
Disclosure of Invention
The invention provides a light-emitting device which emits water ripples through a light source irradiation device and has simple structure and good projection effect.
In order to achieve the purpose, the technical scheme of the invention is as follows: a light-emitting device comprises an irradiation mechanism, a refraction device, a driving device and a support; the refraction device and the driving device are both arranged on the support; the driving device is connected with the refraction mechanism; the driving device drives the refraction device to rotate; the irradiation mechanism is connected with the support and is positioned below the support.
The refraction mechanism comprises a refraction device and a color piece; the refraction device is a cylinder structure made of transparent materials and comprises a left refraction piece, a right refraction piece, a middle refraction piece and a refraction part; more than one refraction part is arranged; the middle refracting part is positioned between the left refracting part and the right refracting part; the left refracting part and the right refracting part are both vertical to the middle refracting part; the left refraction piece and the right refraction piece are respectively connected with one end of the middle refraction piece; the refraction part is arranged on the middle refraction piece; the refraction part comprises more than one convex part and more than one concave part; the convex part is formed by outwards protruding from the inner wall surface of the middle refraction piece; the convex parts extend and are distributed from one end of the middle refracting part to the other end of the middle refracting part; the concave part is formed by inwards sinking from the outer wall surface of the middle refracting part; the concave parts are arranged between the adjacent convex parts and/or on the convex parts; the bottom of the support is provided with an irradiation through hole; the irradiation mechanism irradiates the refraction device through the irradiation through hole.
The irradiation mechanism comprises an irradiation bracket and an irradiation device; the irradiation support comprises a first irradiation support, a second irradiation support and an irradiation support; the first irradiation supporting piece and the second irradiation supporting piece are respectively connected with one end of the irradiation support; the first irradiation support and the second irradiation support are arranged in parallel; the irradiation support is positioned below the first irradiation support and the second irradiation support; the first irradiation supporting piece and the second irradiation supporting piece are attached to the bottom of the support; the irradiation device is arranged on the irradiation support; the top surface height of the first irradiation support and the second irradiation support is higher than the top surface height of the irradiation device.
In the arrangement, the refraction device is irradiated through the irradiation through hole by arranging the irradiation mechanism; so that the light emitted by the illuminating means interacts with the refracting means; the driving device drives the refraction device to rotate; so that on the one hand, the light rays are refracted by the refraction device; the refracted light rays are projected onto the irradiated object after being refracted for multiple times by the refracting device, and the driving device drives the refracting device to rotate, so that the projection is moved on the surface of the object; thus, dynamic light effect can be generated; meanwhile, the convex part and the concave part are arranged; the convex part is formed by protruding from the inner wall surface; the concave part is formed by inwards sinking from the outer wall surface; the convex part and the concave part are not arranged in a plane; when the light irradiates on the convex part and the concave part, the light generates diffuse reflection on the other hand; thus, the irradiation range of the light rays is wide under the action of the refraction device, and the light rays refracted by the refraction device can act with the convex part and the concave part on the other side of the cylinder again; more than one convex part and more than one concave part form a photovoltaic shape; thus, under the action of the refraction device, the output light is also in a wavy ripple structure; thus, the light rays can generate a water ripple effect under the action of the refraction device; under the action of diffuse reflection of the refraction device; the light output by the refraction device has multiple directions; thus under the overlapping action of different light rays; the generated water ripple effect has more dynamic feeling; need not to set up fretwork hole in this application and then externally add a plurality of lens and can realize sending ripple form dynamic light with the refraction device, thereby and because thereby the fretwork form makes the light by the occlusion part be black, thereby makes the light that shines out be bright dark looks interval, if the light projection effect on the object of relatively dark is not good.
The first irradiation supporting piece and the second irradiation supporting piece are arranged and attached to the bottom of the support; so that the irradiated light energy and the refraction device can fully act; meanwhile, projection of the irradiated light without the action of a refraction device is avoided to a limited extent; thereby causing poor effect of generating water ripples; meanwhile, the top surface heights of the first irradiation supporting piece and the second irradiation supporting piece are higher than the top surface height of the irradiation device; the irradiation device is thus arranged on the irradiation support remote from the refraction device; the action area of the irradiation light emitted by the irradiation device and the refraction device is large; further effectively improving the effect of projecting light effect.
Further, more than one convex part horizontally extends from one end of the middle refraction piece to the other end of the middle refraction piece. Thus, the arrangement length of the convex part on the middle refraction part is long; thus, the light can contact with the convex part for a long time when the refraction device is not rotated.
Further, more than one convex part extends from one end of the middle refraction element to the other end of the middle refraction element in an inclined mode. Thus, the arrangement length of the convex part on the middle refraction part is long; therefore, the light can contact with the convex part for a long time during the rotation of the refraction device.
Furthermore, the left side refraction piece and the middle refraction piece, and the right side refraction piece and the middle refraction piece are arranged in a split mode. Thus, the refraction device is convenient to install.
Furthermore, the left side refraction piece and the middle part refraction piece, and the right part refraction piece and the middle part refraction piece are integrally arranged. The sealing effect of the refraction device is good.
Furthermore, the refraction part is also arranged on the left refraction piece and the right refraction piece; the convex part is formed by the outward protrusion of the inner wall surfaces of the left refraction piece and the right refraction piece; the convex parts extend from the middle positions of the left refracting part and the right refracting part to the edge ends; the concave parts are inwards concave from the outer wall surfaces of the left refraction piece and the right refraction piece; the concave parts and the convex parts are arranged on the left refracting part and the right refracting part in an staggered manner.
In the arrangement, the refraction parts are arranged on the left refraction piece and the right refraction piece; the action range of the light and the refraction device is increased, and the light passing through the end part of the refraction device is subjected to multiple refraction effects and then mixed; providing an effect; and the grain area of the generated water ripples is increased.
Furthermore, one end of the support is provided with a rotating groove; the driving device is arranged at one end of the support far away from the rotating groove; the refraction mechanism also comprises a transmission piece; the transmission piece comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is connected with the driving device and the left refraction piece; the second rotating shaft penetrates through the rotating groove and is connected with the right refraction piece. The rotating effect of the refraction device is good.
Further, the illuminating device is a white LED light source; the refraction device is of a transparent cylindrical structure, the transparent cylindrical structure is adopted, the distance between the outer wall surfaces of the refraction device close to the irradiation device can be equal, the multiple refraction effect is good, the cylindrical projection device is convenient to form, and the structure is simple.
Furthermore, the refraction mechanism also comprises more than one color piece; the color piece is arranged on the outer wall surface of the middle refraction piece and is attached to the convex part and the concave part; the color piece is obliquely arranged from one end of the middle refraction piece to the other end of the middle refraction piece, and is made of a color transparent material; by arranging a colorful piece with a transparent structure; only a white LED light source is needed to be arranged, and the color is attached to the single-color light after the single-color light passes through; meanwhile, the light cannot be blocked by the colored piece; this results in a more aesthetic water ripple effect.
By providing a slanted color piece; when the refraction device rotates, one end of the colored piece acts on the light when approaching the light; then when the other end of the color piece is close to the light, the other end of the color piece continuously acts with the light; thus the action time of the colored piece and the light is long; therefore, the color projection effect is good;
meanwhile, the irradiation device is used for emitting monochromatic light; cooperating with more than one color piece through the irradiation device; the monochromatic irradiation light acts with the color piece; so that the light rays of the scheme generate different colors; thus effectively reducing the cost.
Furthermore, the outer wall surfaces of the left side refraction piece and the right side refraction piece are also provided with a first color piece, the first color piece is attached to the convex part or the concave part, the convex part or the concave part of the first color piece is obliquely arranged, and the first color piece is made of a colored transparent material; through also setting up colored one on left side projection piece and right side projection piece to make the light that refraction device both sides were thrown also be the colourful, make the scope of action of colored projection light big, and colored one also sets up for the slope, makes the refraction device rotate the in-process and the time of a effect of colored one longer.
Drawings
Fig. 1 is a schematic perspective view of a second embodiment of a refraction mechanism, a driving device and a support in the present scheme.
Fig. 2 is a side view of a second embodiment of the refraction mechanism in the present solution.
Fig. 3 is a schematic perspective view of a first embodiment of the refraction mechanism, the driving device and the support in the present scheme.
Fig. 4 is a side view of a first embodiment of a refraction mechanism in the present solution.
Fig. 5 is a schematic perspective view of a second embodiment of the present invention.
Fig. 6 is a schematic perspective view of a first embodiment of the present disclosure.
Fig. 7 is a top view of the support in this embodiment.
Fig. 8 is an enlarged view of a in fig. 1.
Fig. 9 is a schematic diagram of the light emitting direction in the present embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
as shown in fig. 3, 4, 6-8; a light-emitting device; comprises an irradiation mechanism 4, a refraction mechanism 1, a driving device 2 and a support 3; the refraction mechanism 1 and the driving device 2 are both arranged on the support 3; the driving device 2 is connected with the refraction mechanism 1; the driving device 2 drives the refraction mechanism 1 to rotate. The driving device 2 is a bidirectional driving motor. So that the refraction means 1 can rotate in the forward direction as well as in the reverse direction. The irradiation mechanism 4 is connected to the support 3 and located below the support 3.
The refraction means 1 comprises refraction means 11; the refracting means 11 includes a left refracting element 111, a right refracting element 112, a middle refracting element 113, and a refracting part 12. In the present embodiment, the refraction device 11 is a transparent cylindrical structure; the left refracting part 111 and the middle refracting part 113, and the right refracting part and the middle refracting part 113 are separately arranged. So that the refractor means 11 is easy to install.
More than one refraction part 12 is arranged; the middle refractive member 113 is positioned between the left refractive member 111 and the right refractive member 112; the left and right refracting elements 111 and 112 are perpendicular to the middle refracting element 113; the left refracting part 111 and the right refracting part 112 are respectively connected with one end of the middle refracting part 113; the refracting part 12 is disposed on the middle refracting part 113; the refraction portion 12 includes one or more convex portions 121 and one or more concave portions 122; the more than one convex parts and the more than one concave parts form a photovoltaic structure.
The convex portion 121 is formed to be convex outward from the inner wall surface of the middle refractive member 113; the convex portions 121 extend from one end of the middle refractive element 113 to the other end of the middle refractive element 113; in the present embodiment; the partial convex portion 121 extends horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113; some of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113, in another embodiment, all of the protrusions 121 may extend horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113, and in yet another embodiment, all of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113. By providing the projection 121 extending horizontally and obliquely at the same time; this increases the effect of the diffuse reflection by the refraction means 11; meanwhile, the arrangement distance of the convex part 121 on the middle refractive member 113 is long; so that the light can sufficiently interact with the protrusions 121.
The concave portion 122 is formed by being depressed inward from the outer wall surface of the middle refractive member 113; the depressions 122 are disposed between adjacent protrusions 121 and/or on the protrusions 121.
One end of the support 3 is provided with a rotating groove (not shown in the figure); the driving device 2 is arranged at one end of the support 3 far away from the rotating groove; the refraction mechanism 1 also comprises a transmission piece; the transmission member includes a first rotating shaft 131 and a second rotating shaft 132; the first rotating shaft 131 connects the driving device 2 and the left refracting part 111; the second rotation shaft 132 passes through the rotation groove and is connected to the right refracting part 112. The rotation of the refractor means 11 is effective. An irradiation through hole 31 is provided at the bottom of the support 3.
The irradiation mechanism 4 includes an irradiation support and an irradiation device 44; the irradiation gantry comprises a first irradiation support 41, a second irradiation support 42 and an irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are respectively connected to one end of the irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are disposed in parallel; the irradiation support 43 is located below the first irradiation support 41 and the second irradiation support 42; the first irradiation supporting member 41 and the second irradiation supporting member 42 are attached to the bottom of the support 3; the irradiation device 44 is arranged on the irradiation support 43; the heights of the top surfaces of the first irradiation support 41 and the second irradiation support 42 are higher than the height of the top surface of the irradiation device 44; the irradiation device 44 is an irradiation device 44 that emits monochromatic light. In this embodiment, the illuminating device is a white LED light source, the luminance of the white LED light source is greater than 500 cd/mm, which can ensure a sufficient illuminating intensity, and a gap of 4.5-5.5mm is formed between the outer wall surface of the refracting device near one side of the support and the support; in this embodiment, the gap between the outer wall surface of the refraction device near the support and the support is 5 mm. The distance between the bottom of the support 3 and the irradiation device is 5mm, so that the irradiation device emits light rays onto the outer side wall of the refraction device as much as possible while the refraction device can rotate.
The refraction device 11 is irradiated by arranging the irradiation mechanism 4; the illumination light thus emitted by the illumination means 44 interacts with the refraction means 11. The first irradiation supporting piece 41 and the second irradiation supporting piece 42 are arranged and connected with the bottom of the support 3 in an attaching mode; the light emitted by the illumination means 44 does not exit between the illumination support and the support 3; so that the illuminating light can sufficiently interact with the refraction means 11; meanwhile, projection of the irradiated light without the action of the refraction device 11 is avoided to a limited extent; thereby causing poor effect of generating water ripples; while the heights of the top surfaces of the first and second irradiation supports 41 and 42 are higher than the height of the top surface of the irradiation device 44; the illumination means 44 is thus arranged on the illumination support remote from the refraction means 11.
The driving device 2 drives the refraction device 11 to rotate; when the light rays are refracted by the refraction device 11; the projection of the refracted light rays on the surface of the object is moved; thus, dynamic light effect can be generated; by providing both the protrusions 121 and the recesses 122; since the protrusion 121 is formed to protrude outward from the inner wall surface; the concave portion 122 is formed by being depressed inward from the outer wall surface; the convex portion 121 and the concave portion 122 are not planarly disposed; thus, when light irradiates on the convex part 121 and the concave part 122, the light generates diffuse reflection; thus, the light beam is irradiated in a wide range under the action of the refraction device 11, and the light beam reflected by the convex part 121 can act on the convex part 121 and the concave part 122 again; the light reflected by the concave portion 122 will react with the convex portion 121 and the concave portion 122 again; more than one convex part and more than one concave part form a photovoltaic structure; thus, under the action of the refraction device 11, the output light rays are also in a photovoltaic structure; thus, the light rays acting on the refracting device 11 can generate a water wave effect; under the action of diffuse reflection of the refraction device 11; the light output by the refraction device 11 has multiple directions; thus under the overlapping action of different light rays; the generated water ripple effect has more dynamic feeling.
Example two:
as shown in fig. 3, 4, 6-8; a light-emitting device; comprises an irradiation mechanism 4, a refraction mechanism 1, a driving device 2 and a support 3; the refraction mechanism 1 and the driving device 2 are both arranged on the support 3; the driving device 2 is connected with the refraction mechanism 1; the driving device 2 drives the refraction mechanism 1 to rotate. The driving device 2 is a bidirectional driving motor. So that the refraction means 1 can rotate in the forward direction as well as in the reverse direction. The irradiation mechanism 4 is connected to the support 3 and located below the support 3.
The refraction means 1 comprises refraction means 11 and a chromatic element (not shown in the figure); the refracting means 11 includes a left refracting element 111, a right refracting element 112, a middle refracting element 113, and a refracting part 12. In the present embodiment, the refraction device 11 is a transparent cylindrical structure; the left refracting part 111 and the middle refracting part 113, and the right refracting part and the middle refracting part 113 are separately arranged. So that the refractor means 11 is easy to install.
More than one refraction part 12 is arranged; the middle refractive member 113 is positioned between the left refractive member 111 and the right refractive member 112; the left and right refracting elements 111 and 112 are perpendicular to the middle refracting element 113; the left refracting part 111 and the right refracting part 112 are respectively connected with one end of the middle refracting part 113; the refracting part 12 is disposed on the middle refracting part 113; the refraction portion 12 includes one or more convex portions 121 and one or more concave portions 122; more than one convex part and more than one concave part form a photovoltaic structure.
The convex portion 121 is formed to be convex outward from the inner wall surface of the middle refractive member 113; the convex portions 121 extend from one end of the middle refractive element 113 to the other end of the middle refractive element 113; in the present embodiment; the partial convex portion 121 extends horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113; some of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113, in another embodiment, all of the protrusions 121 may extend horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113, and in yet another embodiment, all of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113. By providing the projection 121 extending horizontally and obliquely at the same time; this increases the effect of the diffuse reflection by the refraction means 11; meanwhile, the arrangement distance of the convex part 121 on the middle refractive member 113 is long; so that the light can sufficiently interact with the protrusions 121.
The concave portion 122 is formed by being depressed inward from the outer wall surface of the middle refractive member 113; the recesses 122 are provided between adjacent protrusions 121 and/or on the protrusions 121; more than one color piece is arranged; in the present embodiment; the colorful piece is of a transparent structure; five color pieces are arranged; each color piece is individually color set; the colored member is disposed on the outer wall surface of the middle refractive member 113 and attached to the protrusion 121 and the recess 122.
The color members may be disposed in parallel from one end of the middle refracting member 113 to the other end of the middle refracting member 113, may be disposed around the outer wall surface of the middle refracting member 13, or may be disposed in an inclined manner from one end of the middle refracting member 113 to the other end of the middle refracting member 113. In this embodiment, the color members are disposed to be inclined from one end of the central refractive member 113 to the other end of the central refractive member 113. Because the color pieces are arranged obliquely; when the refraction device 11 rotates, one end of the colored piece acts on the light ray when approaching the light ray; then when the other end of the color piece is close to the light, the other end of the color piece continuously acts with the light; thus, the action time of the colored piece and the light is long.
One end of the support 3 is provided with a rotating groove (not shown in the figure); the driving device 2 is arranged at one end of the support 3 far away from the rotating groove; the refraction mechanism 1 also comprises a transmission piece; the transmission member includes a first rotating shaft 131 and a second rotating shaft 132; the first rotating shaft 131 connects the driving device 2 and the left refracting part 111; the second rotation shaft 132 passes through the rotation groove and is connected to the right refracting part 112. The rotation of the refractor means 11 is effective. An irradiation through hole 31 is provided at the bottom of the support 3.
The irradiation mechanism 4 includes an irradiation support and an irradiation device 44; the irradiation gantry comprises a first irradiation support 41, a second irradiation support 42 and an irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are respectively connected to one end of the irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are disposed in parallel; the irradiation support 43 is located below the first irradiation support 41 and the second irradiation support 42; the first irradiation supporting member 41 and the second irradiation supporting member 42 are attached to the bottom of the support 3; the irradiation device 44 is arranged on the irradiation support 43; the heights of the top surfaces of the first irradiation support 41 and the second irradiation support 42 are higher than the height of the top surface of the irradiation device 44; the irradiation device 44 is an irradiation device 44 that emits monochromatic light. In this embodiment, the illuminating device is a white LED light source, the luminance of the white LED light source is greater than 500 cd/mm, which can ensure a sufficient illuminating intensity, and a gap of 4.5-5.5mm is formed between the outer wall surface of the refracting device near one side of the support and the support; in this embodiment, the gap between the outer wall surface of the refraction device near the support and the support is 5 mm. The distance between the bottom of the support 3 and the irradiation device is 5mm, so that the irradiation device emits light rays onto the outer side wall of the refraction device as much as possible while the refraction device can rotate.
The refraction device 11 is irradiated by arranging the irradiation mechanism 4; the illumination light thus emitted by the illumination means 44 interacts with the refraction means 11. The first irradiation supporting piece 41 and the second irradiation supporting piece 42 are arranged and connected with the bottom of the support 3 in an attaching mode; the light emitted by the illumination means 44 does not exit between the illumination support and the support 3; so that the illuminating light can sufficiently interact with the refraction means 11; meanwhile, projection of the irradiated light without the action of the refraction device 11 is avoided to a limited extent; thereby causing poor effect of generating water ripples; while the heights of the top surfaces of the first and second irradiation supports 41 and 42 are higher than the height of the top surface of the irradiation device 44; the illumination means 44 is thus located remotely from the refraction means 11 on the illumination support; the irradiation light emitted by the irradiation device 44 has a large area of action with the refraction device 11; while the irradiation device 44 is an irradiation device 44 that emits monochromatic light; by means of the illuminating means 44 cooperating with more than one coloured element; the monochromatic irradiation light acts with the color piece; so that the light rays of the scheme generate different colors; thus effectively reducing the cost.
The driving device 2 drives the refraction device 11 to rotate; when the light rays are refracted by the refraction device 11; the projection of the refracted light rays on the surface of the object is moved; thus, dynamic light effect can be generated; by providing both the protrusions 121 and the recesses 122; since the protrusion 121 is formed to protrude outward from the inner wall surface; the concave portion 122 is formed by being depressed inward from the outer wall surface; the convex portion 121 and the concave portion 122 are not planarly disposed; thus, when light irradiates on the convex part 121 and the concave part 122, the light generates diffuse reflection; thus, the light beam is irradiated in a wide range under the action of the refraction device 11, and the light beam reflected by the convex part 121 can act on the convex part 121 and the concave part 122 again; the light reflected by the concave portion 122 will react with the convex portion 121 and the concave portion 122 again; more than one convex part and more than one concave part form a photovoltaic structure; thus, under the action of the refraction device 11, the output light rays are also in a photovoltaic structure; thus, the light rays acting on the refracting device 11 can generate a water wave effect; under the action of diffuse reflection of the refraction device 11; the light output by the refraction device 11 has multiple directions; thus under the overlapping action of different light rays; the generated water ripple effect has more dynamic feeling; by arranging a colorful piece with a transparent structure; the light rays can be accompanied with colors after passing through; meanwhile, the light cannot be blocked by the colored piece; this results in a more aesthetic water ripple effect.
Example three:
as shown in fig. 1, 2, 5, 7-8; a light-emitting device; comprises an irradiation mechanism 4, a refraction mechanism 1, a driving device 2 and a support 3; the refraction mechanism 1 and the driving device 2 are both arranged on the support 3; the driving device 2 is connected with the refraction mechanism 1; the driving device 2 drives the refraction mechanism 1 to rotate. The driving device 2 is a bidirectional driving motor. So that the refraction means 1 can rotate in both the forward direction and the direction. The irradiation mechanism 4 is connected to the support 3 and located below the support 3.
The refraction means 1 comprises refraction means 11; the refracting means 11 includes a left refracting element 111, a right refracting element 112, a middle refracting element 113, and a refracting part 12. In the present embodiment, the left refractive element 111 and the middle refractive element 113 are integrally formed, and the right refractive element and the middle refractive element 113 are integrally formed. The sealing effect of the refractor means 11 is good.
More than one refraction part 12 is arranged; the middle refractive member 113 is positioned between the left refractive member 111 and the right refractive member 112; the left and right refracting elements 111 and 112 are perpendicular to the middle refracting element 113; the left refracting part 111 and the right refracting part 112 are respectively connected with one end of the middle refracting part 113; the refracting part 12 is disposed on the middle refracting part 113; the refraction portion 12 includes one or more convex portions 121 and one or more concave portions 122; more than one convex part and more than one concave part form a zigzag structure.
The convex portion 121 is formed to be convex outward from the inner wall surface of the middle refractive member 113; the convex portions 121 extend from one end of the middle refractive element 113 to the other end of the middle refractive element 113; in the present embodiment; the partial convex portion 121 extends horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113; some of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113, in another embodiment, all of the protrusions 121 may extend horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113, and in yet another embodiment, all of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113. By providing the projection 121 extending horizontally and obliquely at the same time; thus increasing the effect of the refraction means 11 on diffuse reflection; meanwhile, the arrangement distance of the convex part 121 on the middle refractive member 113 is long; so that the light can sufficiently interact with the protrusions 121.
The concave portion 122 is formed by being depressed inward from the outer wall surface of the middle refractive member 113; the depressions 122 are disposed between adjacent protrusions 121 and/or on the protrusions 121.
The refraction portion 12 is also provided on the left and right refraction members 111 and 112; the convex part 121 is formed to be convex outward from the inner wall surfaces of the left side refracting part 111 and the right side refracting part 112; the convex part 121 extends from the midpoint of the left refracting part 111 and the right refracting part 112 to the edge end; the concave portion 122 is formed by being concave inward from the outer wall surfaces of the left and right refractors 111 and 112; the concave portions 122 and the convex portions 121 are alternately provided on the left and right refracting members 111 and 112. By providing the refraction portion 12 in the left side refraction member 111 and the right side refraction member 112; the action range of the light and the refraction device 11 is increased; providing an effect; and the grain area of the generated water ripples is increased.
One end of the support 3 is provided with a rotating groove; the driving device 2 is arranged at one end of the support 3 far away from the rotating groove; the refraction mechanism 1 also comprises a transmission piece; the transmission member includes a first rotating shaft 131 and a second rotating shaft 132; the first rotating shaft 131 connects the driving device 2 and the left refracting part 111; the second rotation shaft 132 passes through the rotation groove and is connected to the right refracting part 112. The rotation of the refractor means 11 is effective. The bottom of the support 3 is provided with an irradiation through hole 31
The irradiation mechanism 4 includes an irradiation support and an irradiation device 44; the irradiation gantry comprises a first irradiation support 41, a second irradiation support 42 and an irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are respectively connected to one end of the irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are disposed in parallel; the irradiation support 43 is located below the first irradiation support 41 and the second irradiation support 42; the first irradiation supporting member 41 and the second irradiation supporting member 42 are attached to the bottom of the support 3; the irradiation device 44 is arranged on the irradiation support 43; the level of the first irradiation support 41 and the second irradiation support 42 is higher than the level of the irradiation device 44; the irradiation device 44 is an irradiation device 44 that emits monochromatic light. In this embodiment, the illuminating device is a white LED light source, the luminance of the white LED light source is greater than 500 cd/mm, which can ensure a sufficient illuminating intensity, and a gap of 4.5-5.5mm is formed between the outer wall surface of the refracting device near one side of the support and the support; in this embodiment, the gap between the outer wall surface of the refraction device near the support and the support is 5 mm. The distance between the bottom of the support 3 and the irradiation device is 5mm, so that the irradiation device emits light rays onto the outer side wall of the refraction device as much as possible while the refraction device can rotate.
The refraction device 11 is irradiated by arranging the irradiation mechanism 4; the illumination light thus emitted by the illumination means 44 interacts with the refraction means 11. The first irradiation supporting piece 41 and the second irradiation supporting piece 42 are arranged and connected with the bottom of the support 3 in an attaching mode; the light emitted by the illumination means 44 does not exit between the illumination support and the support 3; so that the illuminating light can sufficiently interact with the refraction means 11; meanwhile, projection of the irradiated light without the action of the refraction device 11 is avoided to a limited extent; thereby causing poor effect of generating water ripples; while the first irradiation support 41, the second irradiation support 42 are higher in level than the irradiation device 44; the illumination means 44 is thus located remotely from the refraction means 11 on the illumination support; further, the irradiation light from the irradiation device 44 has a large area of action with the refraction device 11.
The driving device 2 drives the refraction device 11 to rotate; when the light rays are refracted by the refraction device 11; the projection of the refracted light rays on the surface of the object is moved; thus, dynamic light effect can be generated; by providing both the protrusions 121 and the recesses 122; since the protrusion 121 is formed to protrude outward from the inner wall surface; the concave portion 122 is formed by being depressed inward from the outer wall surface; the convex portion 121 and the concave portion 122 are not planarly disposed; thus, when light irradiates on the convex part 121 and the concave part 122, the light generates diffuse reflection; thus, the light beam is irradiated in a wide range under the action of the refraction device 11, and the light beam reflected by the convex part 121 can act on the convex part 121 and the concave part 122 again; the light reflected by the concave portion 122 will react with the convex portion 121 and the concave portion 122 again; more than one convex part and more than one concave part form a photovoltaic structure; thus, under the action of the refraction device 11, the output light rays are also in a photovoltaic structure; thus, the light rays acting on the refracting device 11 can generate a water wave effect; under the action of diffuse reflection of the refraction device 11; the light output by the refraction device 11 has multiple directions; thus under the overlapping action of different light rays; the generated water ripple effect has more dynamic feeling.
Example four: as shown in fig. 1, 2, 5, 7-8; a light-emitting device; comprises an irradiation mechanism 4, a refraction mechanism 1, a driving device 2 and a support 3; the refraction mechanism 1 and the driving device 2 are both arranged on the support 3; the driving device 2 is connected with the refraction mechanism 1; the driving device 2 drives the refraction mechanism 1 to rotate. The driving device 2 is a bidirectional driving motor. So that the refraction means 1 can rotate in both the forward direction and the direction. The irradiation mechanism 4 is connected to the support 3 and located below the support 3.
The refraction means 1 comprises refraction means 11 and a chromatic element (not shown in the figure); the refracting means 11 includes a left refracting element 111, a right refracting element 112, a middle refracting element 113, and a refracting part 12. In the present embodiment, the left refractive element 111 and the middle refractive element 113 are integrally formed, and the right refractive element and the middle refractive element 113 are integrally formed. The sealing effect of the refractor means 11 is good.
More than one refraction part 12 is arranged; the middle refractive member 113 is positioned between the left refractive member 111 and the right refractive member 112; the left and right refracting elements 111 and 112 are perpendicular to the middle refracting element 113; the left refracting part 111 and the right refracting part 112 are respectively connected with one end of the middle refracting part 113; the refracting part 12 is disposed on the middle refracting part 113; the refraction portion 12 includes one or more convex portions 121 and one or more concave portions 122; the more than one convex parts and the more than one concave parts form a photovoltaic structure.
The convex portion 121 is formed to be convex outward from the inner wall surface of the middle refractive member 113; the convex portions 121 extend from one end of the middle refractive element 113 to the other end of the middle refractive element 113; in the present embodiment; the partial convex portion 121 extends horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113; some of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113, in another embodiment, all of the protrusions 121 may extend horizontally from one end of the middle refractive member 113 to the other end of the middle refractive member 113, and in yet another embodiment, all of the protrusions 121 extend obliquely from one end of the middle refractive member 113 to the other end of the middle refractive member 113. By providing the projection 121 extending horizontally and obliquely at the same time; thus increasing the effect of the refraction means 11 on diffuse reflection; meanwhile, the arrangement distance of the convex part 121 on the middle refractive member 113 is long; so that the light can sufficiently interact with the protrusions 121.
The concave portion 122 is formed by being depressed inward from the outer wall surface of the middle refractive member 113; the recesses 122 are provided between adjacent protrusions 121 and/or on the protrusions 121; more than one color piece is arranged; in the present embodiment; the colorful piece is of a transparent structure; five color pieces are arranged; each color piece is individually color set; the colored member is disposed on the outer wall surface of the middle refractive member 113 and attached to the protrusion 121 and the recess 122.
The color members may be disposed in parallel from one end of the middle refracting member 113 to the other end of the middle refracting member 113, may be disposed around the outer wall surface of the middle refracting member 13, or may be disposed in an inclined manner from one end of the middle refracting member 113 to the other end of the middle refracting member 113. In this embodiment, the color members are disposed to be inclined from one end of the central refractive member 113 to the other end of the central refractive member 113. Because the color pieces are arranged obliquely; when the refraction device 11 rotates, one end of the colored piece acts on the light ray when approaching the light ray; then when the other end of the color piece is close to the light, the other end of the color piece continuously acts with the light; thus, the action time of the colored piece and the light is long.
The refraction portion 12 is also provided on the left and right refraction members 111 and 112; the convex part 121 is formed to be convex outward from the inner wall surfaces of the left side refracting part 111 and the right side refracting part 112; the convex part 121 extends from the midpoint of the left refracting part 111 and the right refracting part 112 to the edge end; the concave portion 122 is formed by being concave inward from the outer wall surfaces of the left and right refractors 111 and 112; the concave parts 122 and the convex parts 121 are arranged alternately on the left refracting part 111 and the right refracting part 112; the outer wall surfaces of the left refraction element 111 and the right refraction element 112 are further provided with a first colored element, and the first colored element is attached to the convex part 121 and the concave part 122. By providing the refraction portion 12 in the left side refraction member 111 and the right side refraction member 112; the action range of the light and the refraction device 11 is increased; providing an effect; and the grain area of the generated water ripples is increased.
One end of the support 3 is provided with a rotating groove; the driving device 2 is arranged at one end of the support 3 far away from the rotating groove; the refraction mechanism 1 also comprises a transmission piece; the transmission member includes a first rotating shaft 131 and a second rotating shaft 132; the first rotating shaft 131 connects the driving device 2 and the left refracting part 111; the second rotation shaft 132 passes through the rotation groove and is connected to the right refracting part 112. The rotation of the refractor means 11 is effective. The bottom of the support 3 is provided with an irradiation through hole 31
The irradiation mechanism 4 includes an irradiation support and an irradiation device 44; the irradiation gantry comprises a first irradiation support 41, a second irradiation support 42 and an irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are respectively connected to one end of the irradiation support 43; the first irradiation support 41 and the second irradiation support 42 are disposed in parallel; the irradiation support 43 is located below the first irradiation support 41 and the second irradiation support 42; the first irradiation supporting member 41 and the second irradiation supporting member 42 are attached to the bottom of the support 3; the irradiation device 44 is arranged on the irradiation support 43; the level of the first irradiation support 41 and the second irradiation support 42 is higher than the level of the irradiation device 44; the irradiation device 44 is an irradiation device 44 that emits monochromatic light. In this embodiment, the illuminating device is a white LED light source, the luminance of the white LED light source is greater than 500 cd/mm, which can ensure a sufficient illuminating intensity, and a gap of 4.5-5.5mm is formed between the outer wall surface of the refracting device near one side of the support and the support; in this embodiment, the gap between the outer wall surface of the refraction device near the support and the support is 5 mm. The distance between the bottom of the support 3 and the irradiation device is 5mm, so that the irradiation device emits light rays onto the outer side wall of the refraction device as much as possible while the refraction device can rotate.
The refraction device 11 is irradiated by arranging the irradiation mechanism 4; the illumination light thus emitted by the illumination means 44 interacts with the refraction means 11. The first irradiation supporting piece 41 and the second irradiation supporting piece 42 are arranged and connected with the bottom of the support 3 in an attaching mode; the light emitted by the illumination means 44 does not exit between the illumination support and the support 3; so that the illuminating light can sufficiently interact with the refraction means 11; meanwhile, projection of the irradiated light without the action of the refraction device 11 is avoided to a limited extent; thereby causing poor effect of generating water ripples; while the first irradiation support 41, the second irradiation support 42 are higher in level than the irradiation device 44; the illumination means 44 is thus located remotely from the refraction means 11 on the illumination support; the irradiation light emitted by the irradiation device 44 has a large area of action with the refraction device 11; while the irradiation device 44 is an irradiation device 44 that emits monochromatic light; by means of the illuminating means 44 cooperating with more than one coloured element; the monochromatic irradiation light acts with the color piece; so that the light rays of the scheme generate different colors; thus effectively reducing the cost.
The driving device 2 drives the refraction device 11 to rotate; when the light rays are refracted by the refraction device 11; the projection of the refracted light rays on the surface of the object is moved; thus, dynamic light effect can be generated; by providing both the protrusions 121 and the recesses 122; since the protrusion 121 is formed to protrude outward from the inner wall surface; the concave portion 122 is formed by being depressed inward from the outer wall surface; the convex portion 121 and the concave portion 122 are not planarly disposed; thus, when light irradiates on the convex part 121 and the concave part 122, the light generates diffuse reflection; thus, the light beam is irradiated in a wide range under the action of the refraction device 11, and the light beam reflected by the convex part 121 can act on the convex part 121 and the concave part 122 again; the light reflected by the concave portion 122 will react with the convex portion 121 and the concave portion 122 again; more than one convex part and more than one concave part form a photovoltaic structure; thus, under the action of the refraction device 11, the output light rays are also in a photovoltaic structure; thus, the light rays acting on the refracting device 11 can generate a water wave effect; under the action of diffuse reflection of the refraction device 11; the light output by the refraction device 11 has multiple directions; thus under the overlapping action of different light rays; the generated water ripple effect has more dynamic feeling; by arranging a colorful piece with a transparent structure; the light rays can be accompanied with colors after passing through; meanwhile, the light cannot be blocked by the colored piece; this results in a more aesthetic water ripple effect.
As shown in fig. 9; a is an incident angle; beta is a reflection angle; gamma is the angle of refraction.

Claims (10)

1. A light emitting device, characterized in that: comprises an irradiation mechanism, a refraction mechanism, a driving device and a support; the refraction mechanism and the driving device are both arranged on the support; the driving device is connected with the refraction mechanism; the driving device drives the refraction mechanism to rotate; the irradiation mechanism is connected with the support and is positioned below the support;
the refraction mechanism comprises a refraction device; the refraction device is a cylinder structure made of transparent materials and comprises a left refraction piece, a right refraction piece, a middle refraction piece and a refraction part; more than one refraction part is arranged; the middle refracting part is positioned between the left refracting part and the right refracting part; the left refracting part and the right refracting part are both vertical to the middle refracting part; the left refraction piece and the right refraction piece are respectively connected with one end of the middle refraction piece; the refraction part is arranged on the middle refraction piece; the refraction part comprises more than one convex part and more than one concave part; the convex part is formed by outwards protruding from the inner wall surface of the middle refraction piece; the convex parts extend and are distributed from one end of the middle refracting part to the other end of the middle refracting part; the concave part is formed by inwards sinking from the outer wall surface of the middle refracting part; the concave parts are arranged between the adjacent convex parts and/or on the convex parts; the bottom of the support is provided with an irradiation through hole; the irradiation mechanism irradiates the refraction device through the irradiation through hole;
the irradiation mechanism comprises an irradiation bracket and an irradiation device; the irradiation support comprises a first irradiation support, a second irradiation support and an irradiation support; the first irradiation supporting piece and the second irradiation supporting piece are respectively connected with one end of the irradiation support; the first irradiation support and the second irradiation support are arranged in parallel; the irradiation support is positioned below the first irradiation support and the second irradiation support; the first irradiation supporting piece and the second irradiation supporting piece are attached to the bottom of the support; the irradiation device is arranged on the irradiation support; the top surface height of the first irradiation support and the second irradiation support is higher than the top surface height of the irradiation device.
2. A light emitting device according to claim 1; the method is characterized in that: more than one convex part extends horizontally from one end of the middle refracting part to the other end of the middle refracting part.
3. A light emitting device according to claim 1; the method is characterized in that: the one or more protrusions extend obliquely from one end of the middle refractive member to the other end of the middle refractive member.
4. A light emitting device according to claim 1; the method is characterized in that: the left side refraction piece and the middle refraction piece, and the right side refraction piece and the middle refraction piece are arranged in a split mode.
5. A light emitting device according to claim 1; the method is characterized in that: the left side refraction piece and the middle part refraction piece, and the right part refraction piece and the middle part refraction piece are integrally arranged.
6. A light emitting device according to claim 5; the method is characterized in that: the refraction part is also arranged on the left refraction piece and the right refraction piece; the convex part is formed by the outward protrusion of the inner wall surfaces of the left refraction piece and the right refraction piece; the convex parts extend from the middle positions of the left refracting part and the right refracting part to the edge ends; the concave parts are inwards concave from the outer wall surfaces of the left refraction piece and the right refraction piece; the concave parts and the convex parts are arranged on the left refracting part and the right refracting part in an staggered manner.
7. A light emitting device according to claim 1; the method is characterized in that: one end of the support is provided with a rotating groove; the driving device is arranged at one end of the support far away from the rotating groove; the refraction mechanism also comprises a transmission piece; the transmission piece comprises a first rotating shaft and a second rotating shaft; the first rotating shaft is connected with the driving device and the left refraction piece; the second rotating shaft penetrates through the rotating groove and is connected with the right refraction piece.
8. A light emitting device according to claim 1; the method is characterized in that: the irradiation device is a white LED light source; the refraction device is a transparent cylindrical structure.
9. A light emitting device according to claim 8, wherein: the refraction mechanism also comprises more than one color piece; the color piece is arranged on the outer wall surface of the middle refraction piece and is attached to the convex part and the concave part; the colored piece is from the one end of middle part refraction piece to the other end slope setting of middle part refraction piece, and colored piece is made for colored transparent material.
10. A light emitting device according to claim 8, wherein: the outer wall surfaces of the left side refraction piece and the right side refraction piece are also provided with a first color piece, the first color piece is attached to the convex part or the concave part, the convex part or the concave part of the first color piece is obliquely arranged, and the first color piece is made of a color transparent material.
CN202011592200.2A 2020-12-29 2020-12-29 Light emitting device Pending CN112377829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011592200.2A CN112377829A (en) 2020-12-29 2020-12-29 Light emitting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011592200.2A CN112377829A (en) 2020-12-29 2020-12-29 Light emitting device

Publications (1)

Publication Number Publication Date
CN112377829A true CN112377829A (en) 2021-02-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011592200.2A Pending CN112377829A (en) 2020-12-29 2020-12-29 Light emitting device

Country Status (1)

Country Link
CN (1) CN112377829A (en)

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