CN214468329U - Cloud-effect projection lamp based on rotatable reflective cup - Google Patents
Cloud-effect projection lamp based on rotatable reflective cup Download PDFInfo
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- CN214468329U CN214468329U CN202120719994.8U CN202120719994U CN214468329U CN 214468329 U CN214468329 U CN 214468329U CN 202120719994 U CN202120719994 U CN 202120719994U CN 214468329 U CN214468329 U CN 214468329U
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Abstract
The utility model relates to the technical field of projection lamps, in particular to a cloud effect projection lamp based on a rotatable reflective cup, which comprises a first projection component, a second projection component, a control device, a loudspeaker, a first shell and a second shell; the first projection assembly comprises a first LED light source, a light guide column, a rotatable and movable reflection cup, a light-transmitting refraction cover and a driving motor; the second projection assembly comprises a second LED light source, a projection lamp piece and a lens assembly; the reflection cup is driven by the driving motor to rotate, so that light emitted by the first projection assembly is projected onto a surface, and a cloud effect of clockwise and anticlockwise simultaneous rotation can be achieved; the second projection component can clearly project the pattern on the projection lamp piece on a surface after the pattern is amplified. The utility model discloses can effectively reduce or avoid the light leak phenomenon of inside scattering, improve projection light's light utilization ratio simultaneously, more energy-concerving and environment-protective.
Description
Technical Field
The utility model relates to a projection lamp technical field relates to a cloud imitates projection lamp based on rotatable anti-light cup especially.
Background
Atmosphere projection lamps have been commonly used in stage entertainment application scenes. Along with the increasing demand of family entertainment or lamp decoration projection atmosphere, the portable, small and easy-to-use, low-power consumption and multifunctional small atmosphere projection lamp increasingly enters the family life of people. In such atmosphere projection lamps, the light pattern effect of the projection lamp light is generally similar to a cloud or flame or water wave, and the dynamic change of the projection lamp effect is realized through an internal rotating mechanism.
Among the above atmosphere projection lamps, there are film type atmosphere projection lamps printed with patterns and light effect type atmosphere projection lamps using light rays to change dynamically. The light effect type projection lamp does not need a projection film printed in advance, and can be realized through light transmission refraction, interference, reunion and the like of light rays.
US patent No. US8057045B2, Star Field Projection Apparatus (Star Field Projection Apparatus), discloses a Projection method and Apparatus that can achieve dynamic starry sky and cloud changing effects. The patent application with publication number CN107859962A discloses a projection lamp simulating sky effect. The utility model with the publication number of CN207796894U discloses a technical scheme for realizing a water wave projection effect by utilizing water wave glass. The utility model discloses a utility model patent that publication number is CN210891354U discloses an adoption water wave piece and quartzy cover realize trinity starry sky lamp structure of starry cloud effect. In addition, utility model patent with publication number CN201875625U discloses a structure of optical disk with triangular prism-shaped light refraction surface and light shield combination of light refraction surface, realizing the technical scheme of stage lamp with dynamic cloud effect.
In order to realize the projection light effect of cloud or water wave, in the technical scheme disclosed above, the common point is that the sheet structure which adopts ground glass or water wave sheets and the like has uneven irregular surfaces on one surface or two surfaces and has a light transmission effect is adopted to realize irregular refraction of light paths. A projection light source, a water wave sheet or frosted glass, a convex lens or a crystal cover are sequentially arranged on the light path and then reach the projection surface; on the inner part assembly, the water-wave sheet or the ground glass is usually in a square or round sheet structure, and a certain distance is reserved between all inner structure assemblies and most of the inner structure assemblies are in an open structure, so that light emitted by a projection light source (LED lamp) has a scattered light leakage phenomenon towards the inner periphery, and the utilization rate of the projection light is not high; if the shell is thin or colored shallowly or a gap with untight packaging exists, the light leakage phenomenon is obvious, the user experience feeling is influenced, the projection light cannot be efficiently utilized, and the energy conservation and environmental protection are not sufficient.
SUMMERY OF THE UTILITY MODEL
To the problem that exists, the utility model aims to provide a projection lamp is imitated to cloud based on rotatable formula anti-light cup can enough realize having the cloud effect of two-way rotation simultaneously in same direction as contrary, also can improve the light utilization ratio of projection light effectively, reduces or avoids inside light leak phenomenon effectively, promotes user's experience and feels.
In order to solve the technical problem who exists, reach profitable improvement effect, the utility model discloses a following technical scheme:
the cloud effect projection lamp based on the rotatable reflector cup comprises a first projection assembly, a second projection assembly, a control device, a loudspeaker, a first shell and a second shell; the first projection assembly comprises a first LED light source, a light guide column, a reflecting cup, a light-transmitting refraction cover and a driving motor, wherein the bottom of the reflecting cup is provided with a hole and can rotate and move; the second projection assembly comprises a second LED light source, a projection lamp piece and a lens assembly; the first LED light source, the second LED light source, the driving motor and the loudspeaker are electrically connected with the control device; the reflection cup is driven by the driving motor to rotate, so that light emitted by the first projection assembly is projected onto a surface, and a cloud effect of clockwise and anticlockwise simultaneous rotation can be achieved; the second projection component can clearly project the pattern on the projection lamp piece on a surface after the pattern is amplified.
Furthermore, the central points of the first LED light source, the light guide column, the reflecting cup and the light-transmitting refraction cover are all positioned on the same projection optical axis straight line.
Furthermore, the light guide column is a convex circular truncated cone, a concave inverted cone space is arranged on the upper surface of one end, far away from the first LED light source, of the light guide column, and an upper concave circular truncated cone space capable of containing the first LED light source is arranged on one end, close to the first LED light source, of the light guide column; the light guide column covers the first LED light source and penetrates out of the hole position formed in the bottom of the reflection cup to guide light rays emitted by the first LED light source to uniformly irradiate the film-coated reflection surface of the reflection cup, and the light guide column is made of high-transparency PC or transparent acrylic materials.
Furthermore, the reflecting cup comprises an outer gear ring, a bottom hole position and a coated reflecting surface, wherein the outer gear ring is used for being meshed with a gear fixedly connected to a rotating shaft of the driving motor, so that the driving motor can drive the reflecting cup to rotate; the bottom hole is used for the light guide column to penetrate out; the film-coated reflecting surface is a diffuse reflection surface which is realized by arranging convex hulls, concave hulls, wrinkled lines or uneven surfaces.
Furthermore, the first projection assembly also comprises a reflecting cup base, a ball and a reflecting cup cover closing ring; the reflecting cup base is fixedly connected with the second shell, the first LED light source is installed on the reflecting cup base, openings are formed in two sides of the bottom of the reflecting cup base, and 4 groups of ball grooves are formed in the quartering points of the circular upper edge; the openings arranged on the two sides of the bottom are used for driving a gear on a rotating shaft of a motor to be meshed with an outer gear ring of the reflecting cup without obstacles; the balls are also provided with 4 groups which are respectively placed in the 4 groups of ball grooves; the reflecting cup is arranged on the reflecting cup base, the reflecting cup base forms a containing bearing for the reflecting cup, the circular edge of the reflecting cup can be in rotary movable contact with the ball, and the ball is used for reducing friction generated when the reflecting cup rotates; the reflecting cup cover ring is fixedly arranged on the upper edge of the reflecting cup base to form a limiting cover for the reflecting cup and the ball, so that the reflecting cup and the ball are prevented from being separated upwards.
Furthermore, the whole light-transmitting refraction cover is hemispherical, and at least one of the inner surface and the outer surface is a refraction surface formed by mutually splicing polygonal cutting surfaces.
Furthermore, the second projection assembly also comprises an assembly shell and an outer light-transmitting cover; the assembly shell comprises an assembly shell I and an assembly shell II, and the second LED light source, the projection lamp sheet and the lens assembly are all arranged in an assembly shell accommodating space which is formed by the assembly shell I and the assembly shell II in a surrounding mode; the outer transparent cover is arranged right in front of the projection light path of the second projection component and fixedly arranged on a second projection window arranged on the first shell.
Preferably, the center points of the second LED light source, the projection lamp sheet, the lens assembly and the outer transparent cover are all on the same projection optical axis straight line; the lens component comprises 4 convex lenses, the projection lamp sheet is arranged between the lens components, and 2 convex lenses are respectively arranged above and below the projection lamp sheet.
Furthermore, the control device comprises a driving motor control module, a light source control module, a Bluetooth connection module, an audio processing module, an infrared remote control module and a power supply management module; the driving motor control module is used for controlling the driving motor to run or stop or adjust the rotating speed; the light source control module is used for controlling the first LED light source and/or the second LED light source to be in a circular dynamic state of normally on or off or color switching or gradually on and gradually off; the Bluetooth connecting module is used for connecting peripheral equipment with a Bluetooth function; the audio processing module is used for processing the audio digital signals, so that the cloud effect projection lamp can play music at the same time; the infrared remote control module is used for receiving a remote control signal sent by an infrared remote controller; the power supply management module is externally connected with a power supply or internally provided with a lithium battery through a power supply interface to supply power to the cloud effect projection lamp.
Furthermore, first casing is including seting up first projection window and second projection window, the refraction cover of printing opacity is installed fixedly on first projection window, outer printing opacity cover is installed fixedly on the second projection window.
Further, the second shell comprises an interface hole, a button hole and a sound outlet hole; the reflecting cup base, the driving motor, the control device, the assembly shell of the second projection assembly and the loudspeaker are fixedly connected with the second shell.
Furthermore, the cloud-effect projection lamp further comprises a plurality of projection combination modes, wherein each projection combination mode is a free combination of the operation states of the first LED light source, the second LED light source and the driving motor, and switching among different projection combination modes is realized through the control device.
The utility model provides a cloud imitates projection lamp based on rotatable formula anti-light cup, its beneficial effect lies in:
1. a light path of the first projection assembly adopts a reflection cup structure which is provided with a diffuse reflection surface and can rotate and move, so that light rays emitted by the first projection assembly are projected onto a surface, and a cloud effect of clockwise and anticlockwise bidirectional simultaneous rotation can be presented; specifically, in the projection optical patterns, part of the optical patterns rotate clockwise, part of the optical patterns rotate anticlockwise, and the projection optical patterns which rotate clockwise and anticlockwise at the same time are staggered with each other, so that the projection optical patterns are highlighted and beautiful and cloud-like projection light effects are created.
2. In order to improve the cloud projection effect of the present invention, the starry sky projection lamp is provided with the second projection component, and projects the light pattern onto a surface through amplifying and clearly according to the fixed pattern of the projection light, such as the moon or the constellation pattern, and the specific projection effect is created by matching the cloud light effect of the clockwise and anticlockwise rotation.
3. The utility model discloses creatively adopts rotatable movable anti-light cup structure, and each structure position of first projection subassembly is inseparabler, can effectively reduce or avoid the light leak phenomenon of inside scattering, can improve the light utilization ratio of projection light simultaneously effectively, and is more energy-concerving and environment-protective.
4. Through controlling means, the user can the independent assortment and switch projection light effect, provides more projection options for the user, greatly promotes user experience and feels.
Drawings
Fig. 1 is an exploded view of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of the overall structure of an embodiment of the present invention;
fig. 3 is an exploded view of a first projection assembly according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a first projection assembly according to an embodiment of the present invention;
fig. 5 is an exploded view of a second projection assembly according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a second projection assembly according to an embodiment of the present invention;
in the above drawings, the reference numerals denote:
1-a first housing; 2-a second housing; 3-a control device; 4-a loudspeaker; 11-a first LED light source; 12-a light guide column; 13-a light-reflecting cup; 14-a light-transmissive refractive cover; 15-driving the motor; 21-a second LED light source; 22-projection lamp sheet; 23-a lens assembly; 24-an outer transmissive mask; 25-assembly housing one; 26-assembly housing two; 101-a first projection window; 102-a second projection window; 121-inverted cone space; 122-a frustum space; 130-outer gear ring; 131-a reflector base; 132-a ball bearing; 133-the cover of the reflector cup is closed; 150-gear.
Detailed Description
The drawings are for illustrative purposes only and should not be construed as limiting the invention; in order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention will be further clearly and completely described with reference to the accompanying drawings. Other embodiments, which can be obtained by a person skilled in the art without inventive step, are also intended to be included within the scope of the present invention.
In the embodiment of the present invention, if the connection or fixing manner between the components is not described, the connection or fixing manner can be fixed by bolts, pins, sliding fasteners, or buckles, or welded or bonded, or connected by rotating shafts, which are commonly used in the prior art. Therefore, details are not described in the present embodiment.
Example 1
Referring to fig. 1-6, the cloud-effect projection lamp based on the rotatable reflector comprises a first projection assembly, a second projection assembly, a control device 3, a loudspeaker 4, a first shell 1 and a second shell 2; the first projection assembly comprises a first LED light source 11, a light guide column 12, a reflecting cup 13 with an opening at the bottom and capable of rotating and moving, a light-transmitting refraction cover 14 and a driving motor 15; the second projection assembly comprises a second LED light source 21, a projection lamp sheet 22 and a lens assembly 23; the first LED light source 11, the second LED light source 12, the driving motor 15 and the loudspeaker 4 are all electrically connected with the control device 3; the reflection cup 13 is driven by the driving motor 15 to rotate, so that light emitted by the first projection assembly is projected onto a surface, and a cloud effect of clockwise and anticlockwise simultaneous rotation can be achieved; the second projection module can project the pattern on the projection lamp sheet 22 onto a surface clearly after being enlarged.
Referring to fig. 3-4, further, the central points of the first LED light source 11, the light guide pillar 12, the reflective cup 13, and the light-transmitting refraction cover 14 are all located on the same projection optical axis straight line.
Further, referring to fig. 4, which is a cross-sectional view of the first projection assembly structure of the present embodiment, the light guiding rod 12 is a convex circular truncated cone, a concave inverted cone space 121 is disposed on the upper surface of the end far away from the first LED light source 11, and an upper concave circular truncated cone space 122 capable of accommodating the first LED light source 11 is disposed at the end close to the first LED light source 11; the light guide column 12 covers the first LED light source 11 and penetrates out of a hole formed in the bottom of the reflection cup 13 to guide light rays emitted by the first LED light source 11 to uniformly irradiate the film-coated reflection surface of the reflection cup 13, and the light guide column 12 is made of high-transparency PC or transparent acrylic materials.
Further, the reflective cup 13 includes an outer gear ring 130, a bottom hole site and a coated reflective surface, the outer gear ring 130 is used for meshing with a gear 150 fixedly connected to a rotating shaft of the driving motor 15, so that the driving motor 15 can drive the reflective cup 13 to rotate; the bottom hole is used for the light guide column 12 to penetrate out; the film-coated reflecting surface is a diffuse reflection surface which is realized by arranging convex hulls, concave hulls, wrinkled lines or uneven surfaces.
Further, the first projection assembly further comprises a reflector base 131, a ball 132 and a reflector cup cover ring 133; the reflecting cup base 131 is fixedly connected with the second shell 2, the first LED light source 11 is installed on the reflecting cup base 131, openings are formed in two sides of the bottom of the reflecting cup base 131, and 4 groups of ball grooves are formed in the four equal points of the circular upper edge; the openings arranged at the two sides of the bottom are used for driving the gear 150 on the rotating shaft of the motor 15 to be meshed with the outer gear ring 130 of the reflecting cup 13 without obstacles; the balls 132 are also provided with 4 groups which are respectively placed in the 4 groups of ball grooves; the reflecting cup 13 is arranged on the reflecting cup base 131, the reflecting cup base 131 forms a holding support for the reflecting cup 13, the circular edge of the reflecting cup 13 can be in rotary movable contact with the rolling ball 132, and the rolling ball 132 is used for reducing friction generated when the reflecting cup 13 rotates; the reflective cup cover ring 133 is fixedly installed on the upper edge of the reflective cup base 131 to form a limiting cover for the reflective cup 13 and the balls 132, so that the reflective cup 13 and the balls 132 are prevented from being separated upwards.
Further, the whole transparent refraction cover 14 is a hemispherical shape, and at least one of the inner and outer surfaces is a refraction surface formed by mutually splicing polygonal cutting surfaces.
Further, the second projection assembly further comprises an assembly housing and an outer transparent cover 24; the assembly shell comprises a first assembly shell 25 and a second assembly shell 26, and the second LED light source 21, the projection lamp sheet 22 and the lens assembly 23 are all arranged in an assembly shell accommodating space defined by the first assembly shell 25 and the second assembly shell 26; the outer transparent cover 24 is disposed right in front of the projection light path of the second projection assembly and is fixedly mounted on a second projection window 102 formed in the first housing 1.
Preferably, the central points of the second LED light source 21, the projection lamp sheet 22, the lens assembly 23 and the outer transparent cover 24 are all on the same projection optical axis straight line; the lens assembly 23 includes 4 convex lenses, and the projection lamp sheet 22 is installed between the lens assemblies 23, so that 2 convex lenses are respectively disposed above and below the projection lamp sheet 22.
Further, the control device 3 comprises a driving motor control module, a light source control module, a bluetooth connection module, an audio processing module, an infrared remote control module and a power supply management module; the driving motor control module is used for controlling the driving motor 15 to run or stop or regulate the rotating speed; the light source control module is used for controlling the first LED light source 11 and/or the second LED light source 21 to be in a cycle dynamic state of normally on or off or color switching or gradually on and gradually off; the Bluetooth connecting module is used for connecting peripheral equipment with a Bluetooth function; the audio processing module is used for processing the audio digital signals, so that the cloud effect projection lamp can play music at the same time; the infrared remote control module is used for receiving a remote control signal sent by an infrared remote controller; the power supply management module is externally connected with a power supply or internally provided with a lithium battery through a power supply interface to supply power to the cloud effect projection lamp.
Further, the first casing 1 includes a first projection window 101 and a second projection window 102, the light-transmitting refraction cover 14 is fixedly installed on the first projection window 101, and the outer light-transmitting cover 24 is fixedly installed on the second projection window 102.
Further, the second housing 2 includes an interface hole, a button hole and a sound outlet hole; the reflective cup base 131, the driving motor 15, the control device 3, the assembly housing of the second projection assembly and the speaker 4 are all fixedly connected with the second housing.
Further, the cloud-effect projection lamp based on the rotatable reflective cup further comprises a plurality of projection combination modes, wherein each projection combination mode is a free combination of the running states of the first LED light source 11, the second LED light source 21 and the driving motor 15, and switching among different projection combination modes is realized through the control device 3.
The above description is for the purpose of illustration, and it is intended to cover by those skilled in the art all such modifications, equivalents, and alternatives as fall within the spirit and scope of the present invention.
Claims (13)
1. The cloud effect projection lamp based on the rotatable reflector cup is characterized by comprising a first projection assembly, a second projection assembly, a control device, a loudspeaker, a first shell and a second shell; the first projection assembly comprises a first LED light source, a light guide column, a reflecting cup, a light-transmitting refraction cover and a driving motor, wherein the bottom of the reflecting cup is provided with a hole and can rotate and move; the second projection assembly comprises a second LED light source, a projection lamp piece and a lens assembly; the first LED light source, the second LED light source, the driving motor and the loudspeaker are electrically connected with the control device; the reflection cup is driven by the driving motor to rotate, so that light emitted by the first projection assembly is projected onto a surface, and a cloud effect of clockwise and anticlockwise simultaneous rotation can be achieved; the second projection component can clearly project the pattern on the projection lamp piece on a surface after the pattern is amplified.
2. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 1, wherein the central points of the first LED light source, the light guide pillar, the reflector cup and the light-transmissive reflector are all on the same projection optical axis line.
3. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 1, wherein the light guide pillar is a convex circular truncated cone, a concave inverted cone space is provided on the upper surface of the light guide pillar at the end far away from the first LED light source, and an upper concave circular truncated cone space capable of accommodating the first LED light source is provided at the end close to the first LED light source; the light guide column covers the first LED light source and penetrates out of the hole position formed in the bottom of the reflection cup to guide light rays emitted by the first LED light source to uniformly irradiate the film-coated reflection surface of the reflection cup, and the light guide column is made of high-transparency PC or transparent acrylic materials.
4. The cloud-effect projection lamp based on the rotatable reflector cup as claimed in claim 1 or 3, wherein the reflector cup comprises a reflective surface provided with an outer gear ring, a bottom hole site and a coating, the outer gear ring is used for being meshed with a gear fixedly connected to a rotating shaft of the driving motor, so that the driving motor can drive the reflector cup to rotate; the bottom hole is used for the light guide column to penetrate out; the film-coated reflecting surface is a diffuse reflection surface which is realized by arranging convex hulls, concave hulls, wrinkled lines or uneven surfaces.
5. The cloud-efficient projection lamp based on rotatable reflector cups as claimed in claim 1, wherein the first projection assembly further comprises a reflector cup base, balls and a reflector cup cover ring; the two sides of the bottom of the reflecting cup base are provided with openings, and the four equal points of the circular upper edge are also provided with 4 groups of ball grooves; the balls are also provided with 4 groups which are respectively placed in the 4 groups of ball grooves; the reflecting cup cover ring is fixedly arranged on the upper edge of the reflecting cup base to form a limiting cover for the reflecting cup and the ball, so that the reflecting cup and the ball are prevented from being separated upwards.
6. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 1, wherein the whole transparent refractive cover is hemispherical, and at least one of the inner and outer surfaces is a refractive surface formed by mutually splicing polygonal cutting surfaces.
7. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 1, wherein the second projection assembly further comprises an assembly housing and an outer transparent cover; the assembly shell comprises an assembly shell I and an assembly shell II, and the second LED light source, the projection lamp sheet and the lens assembly are all arranged in an assembly shell accommodating space which is formed by the assembly shell I and the assembly shell II in a surrounding mode; the outer light-transmitting cover is arranged right in front of the projection light path of the second projection component and fixedly arranged on a second projection window formed in the first shell.
8. The cloud-efficient projection lamp based on the rotatable reflective cup as claimed in claim 7, wherein the second LED light source, the projection lamp sheet, the lens assembly and the center point of the outer transparent cover are all on the same projection optical axis line.
9. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 7, wherein the lens assembly comprises 4 convex lenses, and the projection lamp sheet is installed between the lens assemblies, so that 2 convex lenses are respectively arranged above and below the projection lamp sheet.
10. The cloud-effect projection lamp based on the rotatable reflector cup as claimed in claim 1, wherein the control device comprises a driving motor control module, a light source control module, a Bluetooth connection module, an audio processing module, an infrared remote control module and a power supply management module; the driving motor control module is used for controlling the driving motor to run or stop or adjust the rotating speed; the light source control module is used for controlling the first LED light source and/or the second LED light source to be in a circular dynamic state of normally on or off or color switching or gradually on and gradually off; the Bluetooth connecting module is used for connecting peripheral equipment with a Bluetooth function; the audio processing module is used for processing the audio digital signals, so that the cloud effect projection lamp can play music at the same time; the infrared remote control module is used for receiving a remote control signal sent by an infrared remote controller; the power supply management module is externally connected with a power supply or internally provided with a lithium battery through a power supply interface to supply power to the cloud effect projection lamp.
11. The cloud-efficient projection lamp based on rotatable reflector cup as claimed in claim 1, wherein the first housing defines a first projection window and a second projection window.
12. The rotatable reflector-based cloud efficient projection lamp as claimed in claim 1, wherein the second housing defines an interface hole, a button hole and a sound outlet hole.
13. The cloud-effect projection lamp based on the rotatable reflector cup as claimed in claim 1, wherein the cloud-effect projection lamp further comprises a plurality of projection combination modes, each projection combination mode is a free combination of the operation states of the first LED light source, the second LED light source and the driving motor, and switching between different projection combination modes is realized through the control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120719994.8U CN214468329U (en) | 2021-04-08 | 2021-04-08 | Cloud-effect projection lamp based on rotatable reflective cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120719994.8U CN214468329U (en) | 2021-04-08 | 2021-04-08 | Cloud-effect projection lamp based on rotatable reflective cup |
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| Publication Number | Publication Date |
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| CN214468329U true CN214468329U (en) | 2021-10-22 |
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| CN202120719994.8U Active CN214468329U (en) | 2021-04-08 | 2021-04-08 | Cloud-effect projection lamp based on rotatable reflective cup |
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| CN (1) | CN214468329U (en) |
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2021
- 2021-04-08 CN CN202120719994.8U patent/CN214468329U/en active Active
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