CN214306909U - Water wave effect projection arrangement based on rotatable formula printing opacity cover - Google Patents
Water wave effect projection arrangement based on rotatable formula printing opacity cover Download PDFInfo
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- CN214306909U CN214306909U CN202120720170.2U CN202120720170U CN214306909U CN 214306909 U CN214306909 U CN 214306909U CN 202120720170 U CN202120720170 U CN 202120720170U CN 214306909 U CN214306909 U CN 214306909U
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Abstract
The utility model relates to the technical field of projection lamps, in particular to a water wave effect projection device based on a rotatable light-transmitting cover, which comprises a first projection component, a second projection component and a projection lamp, wherein the first projection component comprises a first LED light source, a light guide column, a light reflecting bowl, a light-transmitting cover which is provided with a light refraction surface and can rotate and move, and the second projection component comprises a second LED light source, a projection lamp piece and a lens component; the light emitted by the first projection component can be projected on a surface to show a water wave effect, and the second projection component can project the fixed pattern on the projection lamp piece on a surface. The water wave effect projection lamp further comprises a control device, a driving motor, a loudspeaker, a first projection assembly fixing seat, a first shell and a second shell.
Description
Technical Field
The utility model relates to a projection lamp technical field relates to a water wave effect projection arrangement based on rotatable formula printing opacity cover very much.
Background
Projection lamps for creating atmospheres are often used in stage entertainment applications. Along with the increasingly prosperous demand for family entertainment or household lamp decoration projection atmosphere, portable and easy-to-use atmosphere projection lamps with low power consumption are more and more accepted by the public and are gradually applied to family entertainment and life. In the atmosphere projection lamp of this kind, the light line effect of projection light is generally for similar cloud or flame or water ripple form, through inside slewing mechanism, realizes the dynamic change of projection light effect.
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 the water wave or the starry sky cloud, the common point of the technical scheme is that the sheet structure which adopts ground glass or a water wave sheet and the like has uneven irregular surfaces on one surface or two surfaces and has a light transmission effect is adopted, and irregular refraction of a light path is realized. 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 reflector 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 water wave effect projection device based on the rotatable light-transmitting cover comprises a first projection assembly, wherein the first projection assembly comprises a first LED light source, a light guide column arranged on the first LED light source, a light reflecting bowl with an opening at the bottom and the rotatable and movable light-transmitting cover provided with a light refraction surface; the central points of the first LED light source, the light guide column, the light reflecting bowl and the light-transmitting cover are all positioned on the same straight line, light emitted by the first light source irradiates on the light reflecting bowl through the guide of the light guide column, and the light penetrates through the light-transmitting cover capable of rotating and moving after being reflected and is projected to the surface to show a water wave effect.
Furthermore, the first LED light source, the light guide column and the light reflecting bowl are fixedly arranged on the first projection assembly fixing seat, and the first projection assembly fixing seat is fixedly connected with the second shell.
Furthermore, the water wave effect projection device also comprises a second projection assembly, the second projection assembly comprises a second LED light source, a projection lamp piece and a lens assembly, the central points of the second LED light source, the projection lamp piece and the lens assembly are all positioned on the same projection optical axis straight line, and the second projection assembly can clearly project the fixed pattern on the projection lamp piece onto a surface after being amplified.
Further, the water wave effect projection device further comprises a driving motor, the driving motor is connected with the light-transmitting cover in a transmission mode, when the light-transmitting cover rotates under the driving of the driving motor, light emitted by the first LED light source irradiates the light-reflecting bowl through the guide of the light-guiding column, the light is reflected and then penetrates through the light-transmitting cover which rotates, and the projected water wave effect which can be dynamically and rotationally changed on the surface is achieved.
Furthermore, the water wave effect projection device also comprises an annular rotating seat, and the annular rotating seat comprises an upper rotating seat and a lower rotating seat; the lower swivel base is provided with an outer gear ring, the outer gear ring is meshed with a driving gear fixedly connected to a rotating shaft of the driving motor, and the upper swivel base is detachably and fixedly connected with the lower swivel base; the outer periphery of the upper rotary seat is provided with a convex clamping ring, a certain gap is formed between the clamping ring and the upper edge of the lower rotary seat, and an annular groove is formed on the whole gap; the printing opacity covers and top spin seat detachably fixed connection, the driving motor drives through the transmission of annular roating seat printing opacity covers carry out the rotation activity.
Specifically, the light guide column is a convex circular truncated cone, a downward-concave inverted cone space is arranged on the circular truncated cone far away from one end of the first LED light source, the light guide column covers the first LED light source and penetrates out of a round hole formed in the center of the bottom of the reflecting bowl to guide light emitted by the first LED light source to uniformly irradiate the film-coated reflecting surface of the reflecting bowl, and the light guide column is made of high-transparency PC or transparent acrylic materials.
Specifically, the reflecting bowl is provided with a coated reflecting surface which is a diffuse reflecting surface, and the diffuse reflecting surface is realized by arranging convex hulls, concave pits, wrinkled lines or uneven surfaces, so that light emitted by the first light source is diffused and then passes through the rotatable and movable light-transmitting cover.
Specifically, the whole light-transmitting cover is hemispherical, and at least one of the inner surface and the outer surface is a light refraction surface formed by mutually splicing polygonal cutting surfaces.
Specifically, the second projection assembly further comprises an assembly housing and an outer projection lampshade; the assembly shell can be divided into a first assembly shell and a second assembly shell, 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 first assembly shell and the second assembly shell in a surrounding mode; the outer projection lamp shade is arranged on a projection light path of the second projection component and is fixedly arranged on a second projection window arranged on the first shell.
Specifically, the lens assembly comprises 4 convex lenses, and the projection lamp sheets are arranged between the lens assemblies, so that 2 convex lenses are respectively arranged above and below the projection lamp sheets.
Furthermore, the water wave effect projection device also comprises a control device, and the first LED light source, the second LED light source, the driving motor and the loudspeaker are electrically connected with the control device; the control device comprises a driving motor control unit, a light source control unit, a Bluetooth connecting unit, an audio processing unit, an infrared remote control unit and a power supply management unit; the driving motor control unit is used for controlling the driving motor to run or stop or regulate the rotating speed; the light source control unit 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 power supply management unit supplies power to the projection device through an external power supply or a built-in lithium battery of the power supply interface.
Further, the water wave effect projection device is also provided with a loudspeaker, the loudspeaker is electrically connected with the control device, and is fixedly installed on the second shell for playing music matched with atmosphere creation.
Furthermore, the water wave effect projection device also comprises a first shell and a second shell, wherein the first shell is provided with a first projection window and a second projection window; a convex circular ring is arranged on the inner edge of the first projection window; a plurality of ball accommodating grooves with balls arranged inside are equidistantly arranged on the circular ring; the second shell is provided with an interface hole, a button hole and a sound outlet hole; the first projection assembly fixing seat, the driving motor, the control device, the loudspeaker and the assembly shell of the second projection assembly are fixedly connected with the second shell.
Furthermore, the upper rotating seat is arranged above the ring arranged on the first projection window, the lower rotating seat is arranged below the ring arranged on the first projection window, and the upper rotating seat and the lower rotating seat are fixedly connected to form the annular groove which just clamps the ring arranged on the first projection window, so that the annular rotating seat can rotate and move in the first projection window and cannot be separated upwards or downwards.
Specifically, a plurality of ball accommodating grooves with balls built therein are equidistantly arranged on the circular ring, so that friction between the upper rotary seat and the circular ring is reduced, and the annular rotary seat can rotate on the first projection window more quietly, stably and efficiently.
Furthermore, the water wave effect projection device also 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, the second LED light source and the driving motor, and the switching among different projection combination modes is realized through the control device.
The utility model provides a water wave effect projection arrangement based on rotatable formula printing opacity cover, its beneficial effect lies in:
1. a light reflecting bowl structure with a diffuse reflection surface is adopted on a light path of the first projection assembly, so that light emitted by the first projection assembly is projected to a surface, and a water wave projection effect can be presented; meanwhile, the driving motor drives the light-transmitting cover to rotate, and the presented water wave can realize the effect of dynamic rotation change.
2. In order to improve the projection effect of the present invention, the water wave effect projection device is provided with a second projection component, and projects the light pattern onto a surface through amplifying and clearly projecting the light pattern according to the fixed pattern of the projection light, for example, the projection image of the moon, and the water wave effect of the dynamic rotation change is matched, and the effect of creating the atmosphere is better if the moon is reflected in water.
3. The utility model discloses creatively adopts the reflector structure, can effectively play spotlight and reduce the light leak effect simultaneously, and each structure position of first projection subassembly is inseparabler, improves projection light's light utilization ratio, 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 a schematic cross-sectional view of the overall structure of an embodiment of the present invention;
fig. 2 is an exploded view of the overall structure of the embodiment of the present invention;
fig. 3 is a cross-sectional view of a first projection assembly according to an embodiment of the present invention;
fig. 4 is an exploded view of a first projection assembly according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of a second projection assembly according to an embodiment of the present invention;
fig. 6 is an exploded 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; 5-a first projection assembly fixing seat; 11-a first LED light source; 12-a light guide column; 13-a light reflecting bowl; 14-a light transmissive cover; 15-driving the motor; 21-a second LED light source; 22-projection lamp sheet; 23-a lens assembly; 24-an outer projection lampshade; 25-assembly housing one; 26-assembly housing two; 101-a first projection window; 102-a second projection window; 103-ring; 104-ball receiving groove; 105-a ball; 120-inverted cone space; 130-a diffusive reflective surface; 140-an annular groove; 141-down swivel seat; 142-upward rotary seat; 150-a drive gear; 1410-external gear ring; 1420-capture ring.
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 moire effect projection device based on the rotatable light-transmitting cover comprises a first projection assembly, wherein the first projection assembly comprises a first LED light source 11, a light guide column 12 arranged on the first LED light source 11, a light reflecting bowl 13 with a hole at the bottom, and a light-transmitting cover 14 which is provided with a light refraction surface and can rotate and move; the central points of the first LED light source 11, the light guide column 12, the light reflecting bowl 13 and the light-transmitting cover 14 are all on the same straight line, light emitted by the first light source 11 is irradiated on the light reflecting bowl 13 through the guide of the light guide column 12, and the light is reflected and then penetrates through the light-transmitting cover 14 capable of rotating and moving, so that the light is projected on one surface to present a water wave effect.
Further, the first LED light source 11, the light guide column 12 and the light reflecting bowl 13 are all fixedly mounted on the first projection assembly fixing seat 5, and the first projection assembly fixing seat 5 is fixedly connected with the second housing 2.
Further, the water wave effect projection device further comprises a second projection assembly, the second projection assembly comprises a second LED light source 21, a projection lamp piece 22 and a lens assembly 23, the central points of the second LED light source 21, the projection lamp piece 22 and the lens assembly 23 are all located on the same projection optical axis line, and the second projection assembly can clearly project the fixed pattern on the projection lamp piece 22 onto a surface after being amplified.
Further, the water wave effect projection device further comprises a driving motor 15, the driving motor 15 is in transmission connection with the light-transmitting cover 14, when the light-transmitting cover 14 is driven by the driving motor 15 to rotate, light emitted by the first LED light source 11 is irradiated on the light-reflecting bowl 13 through the guide of the light-guiding column 12, and the light is reflected and then penetrates through the light-transmitting cover 14 which is in rotation movement, so that the projection is projected to a surface to show the water wave effect with dynamic rotation change.
Further, the water wave effect projection device further comprises an annular rotary seat, wherein the annular rotary seat comprises an upper rotary seat 142 and a lower rotary seat 141; the lower swivel base 141 is provided with an outer gear ring 1410, the outer gear ring 1410 is meshed with the driving gear 150 fixedly connected to the rotating shaft of the driving motor 15, and the upper swivel base 142 is detachably and fixedly connected with the lower swivel base 141; the upper rotary base 142 is provided with a convex position-locking ring 1420 at the periphery, and the position-locking ring 1420 has a certain gap with the upper edge of the lower rotary base 141, and the gap forms an annular groove 140 as a whole; the light-transmitting cover 14 is detachably and fixedly connected with the upper rotating seat 142, and the driving motor 15 drives the light-transmitting cover 14 to rotate through the transmission action of the annular rotating seat.
Specifically, the light guide column 12 is a convex circular truncated cone, an inverted cone space 120 which is concave downwards is arranged on the circular truncated cone far away from one end of the first LED light source 11, the light guide column 12 covers the first LED light source 11 and penetrates out of a circular hole formed in the center of the bottom of the light reflecting bowl 13 to guide light emitted by the first LED light source 11 to uniformly irradiate a film-coated light reflecting surface of the light reflecting bowl 13, and the light guide column 12 is made of highly transparent PC or transparent acrylic materials.
Specifically, the reflecting bowl 13 is provided with a coated reflecting surface 130, the coated reflecting surface 130 is a diffuse reflecting surface, and the diffuse reflecting surface is implemented by arranging convex hulls, concave pits, corrugated lines or uneven surfaces, so that light emitted by the first light source is diffused and then passes through the light-transmitting cover 14 which can rotate and move.
Specifically, the light-transmitting cover 14 is a hemispherical shape, and at least one of the inner and outer surfaces is a light refraction surface formed by mutually splicing polygonal cutting surfaces.
Specifically, the second projection assembly further comprises an assembly housing and an outer projection lampshade 24; the assembly shell can be divided into 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 enclosed by the first assembly shell 25 and the second assembly shell 26; the outer projection lampshade 24 is disposed on the projection light path of the second projection component, and is fixedly mounted on a second projection window 102 formed in the first housing 1.
Specifically, 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 water wave effect projection device further comprises a control device 3, and the first LED light source 11, the second LED light source 21, the driving motor 15 and the loudspeaker 4 are all electrically connected with the control device 3; the control device 3 comprises a driving motor control unit, a light source control unit, a Bluetooth connection unit, an audio processing unit, an infrared remote control unit and a power supply management unit; the driving motor control unit is used for controlling the driving motor 15 to run or stop or regulate the rotating speed; the light source control unit 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 power supply management unit supplies power to the projection device through an external power supply or a built-in lithium battery of the power supply interface.
Further, the water wave effect projection arrangement is still including being provided with speaker 4, speaker 4 with 3 electricity of controlling means are connected, and fixed mounting is on second casing 2 for the music that the atmosphere was built in the broadcast cooperation.
Further, the water wave effect projection device further comprises a first shell 1 and a second shell 2, wherein the first shell 1 is provided with a first projection window 101 and a second projection window 102; a convex circular ring 103 is arranged on the inner edge of the first projection window 101; a plurality of ball receiving grooves 104 in which balls 105 are placed are equidistantly formed in the ring; the second shell 2 is provided with an interface hole, a button hole and a sound outlet hole; the control device 3, the loudspeaker 4, the first projection component fixing seat 5, the driving motor 15 and the component shell of the second projection component are all fixedly connected with the second shell 2.
Further, the upper swivel base 142 is installed above the ring 103 disposed on the first projection window 101, and the lower swivel base 141 is installed below the ring 103 disposed on the first projection window 101, and by fixedly connecting the upper swivel base 142 and the lower swivel base 141, the annular groove 140 is formed to just hold the ring 103 disposed on the first projection window 101, so that the annular swivel base is rotatably movable in the first projection window 101 and cannot be disengaged upward or downward.
Specifically, the plurality of ball receiving grooves 104 containing the balls 105 are equidistantly formed in the circular ring 103, so as to reduce friction between the upper rotary base 142 and the circular ring 103, and to allow the circular rotary base to rotate on the first projection window 101 more quietly, smoothly and efficiently.
Further, the water wave effect projection device 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 the control device 3 is used for realizing switching among different projection combination modes.
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 (12)
1. The water wave effect projection device based on the rotatable light-transmitting cover is characterized by comprising a first projection assembly, wherein the first projection assembly comprises a first LED light source, a light guide column arranged on the first LED light source, a light reflecting bowl with an opening at the bottom and a light-transmitting cover which is provided with a light refraction surface and can rotate and move; the central points of the first LED light source, the light guide column, the light reflecting bowl and the light-transmitting cover are all positioned on the same straight line, light emitted by the first light source irradiates on the light reflecting bowl through the guide of the light guide column, and the light penetrates through the light-transmitting cover capable of rotating and moving after being reflected and is projected to the surface to show a water wave effect.
2. The apparatus of claim 1, further comprising a second projection assembly, wherein the second projection assembly comprises a second LED light source, a projection light sheet, and a lens assembly, the center points of the second LED light source, the projection light sheet, and the lens assembly are all on the same projection optical axis, and the second projection assembly can enlarge the fixed pattern on the projection light sheet and clearly project the enlarged fixed pattern on a surface.
3. The moire effect projection device as claimed in claim 2, further comprising a driving motor, wherein the driving motor is in transmission connection with the light transmissive cover, when the light transmissive cover is driven by the driving motor to rotate, the light emitted from the first LED light source is guided by the light guiding pillar to irradiate the light reflecting bowl, and the light is reflected and then passes through the light transmissive cover to be projected on a surface to present a moire effect with dynamic rotation change.
4. The rotatable, light-transmissive cover-based watermark effect projection device of claim 1, further comprising an annular swivel mount comprising an upper swivel mount and a lower swivel mount; the lower swivel base is provided with an outer gear ring, the outer gear ring is meshed with a driving gear fixedly connected to a rotating shaft of the driving motor, and the upper swivel base is detachably and fixedly connected with the lower swivel base; the outer periphery of the upper rotary seat is provided with a convex clamping ring, a certain gap is formed between the clamping ring and the upper edge of the lower rotary seat, and an annular groove is formed on the whole gap; the printing opacity covers and top spin seat detachably fixed connection, the driving motor drives through the transmission of annular roating seat printing opacity covers carry out the rotation activity.
5. The device of claim 1, wherein the light guide post is a convex circular truncated cone, a downward-concave inverted cone space is disposed on the circular truncated cone at the end far away from the first LED light source, the light guide post covers the first LED light source and penetrates through a circular hole formed in the center of the bottom of the reflector to guide the light emitted by the first LED light source to uniformly irradiate the coated reflective surface of the reflector, and the light guide post is made of highly transparent PC or transparent acrylic material.
6. The apparatus of claim 1, wherein the reflector is configured with a coated reflective surface, and the coated reflective surface is configured as a diffuse reflective surface implemented by configuring convex hulls, concave pits, corrugated patterns, or uneven surfaces, such that light from the first light source is diffusely reflected and then passes through the rotatable and movable transparent cover.
7. The apparatus of claim 1, wherein the cover is a hemispherical shape and at least one of the inner and outer surfaces is a light refracting surface formed by joining polygonal cut surfaces.
8. The water wave effect projection device based on the rotatable light-transmissive cover as claimed in claim 2, wherein the second projection assembly further comprises a housing provided with an assembly housing and an outer projection lamp cover; the assembly shell comprises a first assembly shell and a second assembly shell, 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 first assembly shell and the second assembly shell in a surrounding mode.
9. The apparatus of claim 2 wherein the lens assembly comprises 4 convex lenses and the projection light sheet is mounted between the lens assemblies such that there are 2 convex lenses above and below the projection light sheet.
10. The rotatable, light-transmissive cover-based moire effect projection device as claimed in claim 3 further comprising control means; the control device comprises a driving motor control unit, a light source control unit, a Bluetooth connecting unit, an audio processing unit, an infrared remote control unit and a power supply management unit; the driving motor control unit is used for controlling the driving motor to run or stop or regulate the rotating speed; the light source control unit 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 power supply management unit supplies power to the projection device through an external power supply or a built-in lithium battery of the power supply interface.
11. The moire effect projection device as claimed in claim 3 further comprising a first housing and a second housing, wherein the first housing defines a first projection window and a second projection window; a convex circular ring is arranged on the inner edge of the first projection window; a plurality of ball accommodating grooves with balls arranged inside are equidistantly arranged on the circular ring; the second shell is provided with an interface hole, a button hole and a sound outlet hole.
12. The apparatus of claim 1 further comprising a plurality of projection combinations, wherein each projection combination is a free combination of the first LED light source, the second LED light source, and the operating status of the driving motor, and the control device is used to switch between different projection combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120720170.2U CN214306909U (en) | 2021-04-08 | 2021-04-08 | Water wave effect projection arrangement based on rotatable formula printing opacity cover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120720170.2U CN214306909U (en) | 2021-04-08 | 2021-04-08 | Water wave effect projection arrangement based on rotatable formula printing opacity cover |
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| CN214306909U true CN214306909U (en) | 2021-09-28 |
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| CN202120720170.2U Active CN214306909U (en) | 2021-04-08 | 2021-04-08 | Water wave effect projection arrangement based on rotatable formula printing opacity cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017737A (en) * | 2021-11-22 | 2022-02-08 | 深圳市盈鹏光电有限公司 | North-polar light projection lamp with longitudinal rotary-open shading mechanism |
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2021
- 2021-04-08 CN CN202120720170.2U patent/CN214306909U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017737A (en) * | 2021-11-22 | 2022-02-08 | 深圳市盈鹏光电有限公司 | North-polar light projection lamp with longitudinal rotary-open shading mechanism |
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