CN218350686U

CN218350686U - Projection device

Info

Publication number: CN218350686U
Application number: CN202221232370.4U
Authority: CN
Inventors: 刘李芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2023-01-20
Anticipated expiration: 2032-05-20

Abstract

The utility model provides a projection device, which arranges a first lens and a light-transmitting lampshade on the emergent light path of a first light source, and arranges a plurality of irregular plano-convex lenses on the emergent light surface of the first lens; a plurality of irregular plano-convex lenses which are different from the plano-convex lens on the light emitting surface of the first lens in shape are arranged on the light-transmitting lampshade; make the drive arrangement drive can not only produce dynamic projection effect when first lens is rotatory, and light passes through first lens and light lampshade after, the plano-convex lens of the different shapes on first lens and the light lampshade makes the effect superpose each other to produce the manifold projection effect of change.

Description

Projection device

Technical Field

The utility model belongs to the projection lamp field especially relates to a projection arrangement.

Background

The projection lamp is commonly used in some indoor places, utilizes the interference and diffraction principle of light, builds a starry sky environment, is favorable to people to relieve fatigue and pressure that work caused one day to have good decorative effect.

The patterns projected by the projection lamp in the market at present are mostly simple patterns such as stars and the like, the projection effect is monotonous, and the requirements of active atmosphere can not be met in many occasions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a projection arrangement aims at solving the dull problem of projection arrangement projection effect among the prior art.

The utility model discloses a realize like this, provide a projection arrangement, including first projection subassembly, first projection subassembly includes:

a first light source assembly including a first light source for generating projection light;

the first lens is arranged on an emergent light path of the first light source, and a plurality of irregular plano-convex lenses are arranged on a light emergent surface of the first lens;

the driving device is connected with the first lens and is used for driving the first lens;

the light-transmitting lampshade is arranged on an emergent light path of the first light source and is positioned behind the first lens; projection light generated by the first light source passes through the first lens and the light-transmitting lampshade in sequence and then is emitted out;

the light-transmitting lampshade is provided with a plurality of irregular plano-convex lenses, and the plano-convex lenses on the light-transmitting lampshade are different from the plano-convex lenses on the light emergent surface of the first lens in shape.

Further, the plurality of irregular plano-convex lenses arranged on the light emitting side of the first lens are hill-shaped plano-convex lenses; the light-transmitting lampshade is characterized in that a plurality of irregular plano-convex lenses arranged on the light-transmitting lampshade are arranged on the inner surface of the light-transmitting lampshade, and the irregular plano-convex lenses are one or the combination of two of long-strip plano-convex lenses, vortex plano-convex lenses and polygonal plano-convex lenses.

Furthermore, the first lens comprises a lens part and a tooth part, the plurality of irregular plano-convex lenses are arranged on the lens part, and the tooth part is provided with meshing teeth; the driving device comprises a motor and a gear directly or indirectly driven by the motor, and when the motor drives the gear to rotate, the gear drives the light-transmitting lampshade to rotate through the tooth part.

Further, the tooth part is arranged around the periphery of the lens part and protrudes out of the end face of the lens part, and the meshing tooth is positioned on the inner side wall or the outer side wall of the tooth part.

Further, the driving device comprises a motor and a belt transmission assembly for connecting the motor and the first lens, and the motor drives the first lens to rotate through the belt transmission assembly.

The lamp shade device further comprises a shell and a mounting rack, wherein the shell is provided with a lamp shade hole, and the mounting rack is arranged in the shell and is positioned corresponding to the lamp shade hole; the first lens passes through the mounting bracket is installed in the shell, light lampshade is located lamp shade hole department.

Further, the central point of mounting bracket put with the central point of first lens puts, is equipped with the pivot on one, is equipped with the shaft hole on the other, the shaft hole cover is located realize in the pivot first lens is connected with the rotation of mounting bracket.

Furthermore, a step area is arranged at one end, close to the lampshade hole, of the mounting frame, and the first lens is arranged in the step area; the first light source is located on one side, away from the light-transmitting lampshade, of the first lens, and the first light source is deviated from the rotation center of the first lens.

The first light source assembly further comprises a lamp panel, a lamp holder and a light gathering piece, the lamp panel is mounted on the mounting frame, the first light source is an LED lamp bead, and the lamp holder is mounted on the mounting frame and located outside the LED lamp bead; the light condensing part is arranged on the lamp holder and is used for condensing light of the LED lamp beads.

Further, the device also comprises a second projection assembly and a third projection assembly;

the second projection assembly comprises a second light source for generating laser, a heat dissipation bracket arranged outside the second light source and a grating sheet arranged in the laser emitting direction of the second light source;

the third projection assembly comprises a third light source, a film with patterns, a convex lens for magnifying the projected patterns, and a lens support for mounting the film and the convex lens.

Compared with the prior art, the utility model, beneficial effect lies in: the first lens and the light-transmitting lampshade are arranged on an emergent light path of the first light source, and the light emergent side of the first lens is provided with a plurality of irregular plano-convex lenses; a plurality of irregular plano-convex lenses which are different from the plano-convex lens on the light emitting surface of the first lens in shape are arranged on the light-transmitting lampshade; make the drive arrangement drive can not only produce dynamic projection effect when first lens is rotatory, and light passes through first lens and light lampshade after, the plano-convex lens of the different shapes on first lens and the light lampshade makes the effect superpose each other to produce the manifold projection effect of change.

Drawings

Fig. 1 is an exploded view of a first projection assembly of a projection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a first lens provided in an embodiment of the present invention;

fig. 3 is a schematic view illustrating a connection state between a first lens and a driving device according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating a connection state between the first lens and the driving device according to another embodiment of the present invention;

fig. 5 is a schematic view illustrating a connection state between a first lens and a driving device according to another embodiment of the present invention;

FIG. 6 is an enlarged view of a portion A of FIG. 4;

fig. 7 is a schematic structural view of a light-transmitting lamp cover provided with a strip-shaped plano-convex lens according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a light-transmitting lampshade provided with a spiral and a strip-shaped plano-convex lens according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a light-transmitting lamp cover provided with a polygonal plano-convex lens according to another embodiment of the present invention;

fig. 10 is a schematic cross-sectional view of a projection apparatus according to an embodiment of the present invention;

fig. 11 is an exploded view of a projection apparatus according to an embodiment of the present invention;

fig. 12 is a schematic view illustrating a state where the first lens and the mounting frame are separated according to an embodiment of the present invention;

fig. 13 is a schematic perspective view of a projection apparatus according to an embodiment of the present invention;

fig. 14 is an exploded view of a second projection assembly provided by an embodiment of the present invention;

fig. 15 is an exploded view of a third projection assembly provided by an embodiment of the present invention;

fig. 16 is a schematic diagram of an internal structure of a projection apparatus having components such as a second projection assembly and a third projection assembly according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is noted that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

As shown in fig. 1, the projection apparatus of the present invention includes a first projection assembly 10, the first projection assembly 10 includes: the first light source assembly 100, the first lens 110, the light-transmitting shade 130, and the driving device 140. The first light source assembly 100 includes a first light source 101 for generating projection light; the first lens 110 is arranged on an emergent light path of the first light source 101, and a plurality of irregular plano-convex lenses are arranged on a light emergent surface of the first lens 110; the transparent lampshade 130 is arranged on the emergent light path of the first light source 101 and behind the first lens 110, and the projection light generated by the first light source 101 is emitted after passing through the first lens 110 and the transparent lampshade 130 in sequence; the driving device 140 is connected to the first lens 110, and is used for driving the first lens 110 to rotate. By arranging the first lens 110 and the translucent lampshade 130 on the light emitting path of the first light source 101, and arranging a plurality of irregular plano-convex lenses on the light emitting surface of the first lens 110; a plurality of planoconvex lenses which are irregular and have a shape different from that of the planoconvex lens on the light exit surface of the first lens 110 are provided on the light-transmitting lamp cover 130; make drive arrangement 140 drive can not only produce dynamic projection effect when first lens 110 is rotatory, and light passes through first lens 110 and light lampshade 130 back, and the plano-convex lens of the different shapes on first lens 110 and the light lampshade 130 makes the effect jet out after superposing each other to produce the manifold projection effect of change.

As shown in fig. 2 to 5, in some embodiments, the first lens 110 includes a lens portion 111 and a tooth portion 112, the plurality of irregular plano-convex lenses are disposed on the lens portion 111, and the tooth portion 112 is provided with a meshing tooth 1121; the driving device 140 includes a motor 141 and a gear 142 directly or indirectly driven by the motor 141, and when the motor 141 drives the gear 142 to rotate, the gear 142 drives the first lens 110 to rotate through the tooth portion 112. For example, the motor 141 is a reduction motor 141, the gear 142 is directly mounted on an output shaft of the reduction motor 141, and the motor 141 directly drives the gear 142; or a reduction gear set is arranged between the motor 141 and the gear 142, and the motor 141 indirectly drives the gear 142 through the reduction gear set. Further, the tooth portion 112 is disposed around the periphery of the lens portion 111 and protrudes from the end surface of the lens portion 111 to form an annular structure, and the engaging tooth 1121 is located on the inner side wall or the outer side wall of the annular structure (i.e., the tooth portion 112). In other embodiments, the driving device 140 includes a motor 141 and a belt driving assembly 143 connecting the motor 141 and the first lens 110, wherein the motor 141 drives the first lens 110 to rotate through the belt driving assembly; alternatively, the driving device 140 includes a motor 141, and the first lens 110 is fixedly mounted on an output shaft of the motor 141.

As shown in fig. 4 to 9, in some embodiments, in order to present a variable projection effect, the plurality of irregular plano-convex lenses disposed on the light emitting surface of the first lens 110 include a hill plano-convex lens 1111, that is, a plurality of hill relief lines with different sizes and shapes are formed on the light emitting surface of the first lens 110; the plurality of irregular plano-convex lenses arranged on the light-transmitting lampshade 130 are one or a combination of two of a strip plano-convex lens 131, a vortex plano-convex lens 132 and a polygonal plano-convex lens 133. The elongated plano-convex lens 131 may be a convex elongated plano-convex lens or a concave elongated plano-convex lens, and the light emitted from the first lens 110 passes through the light-transmitting cover 130 provided with the elongated plano-convex lens 131 to project an aurora effect. After the light emitted from the first lens 110 passes through the light-transmitting cover 130 provided with the spiral plano-convex lens 132, a vortex effect (similar to a rotating galaxy effect) can be projected. After the light emitted from the first lens 110 passes through the light-transmitting lampshade 130 provided with the polygonal plano-convex lens 133, a water wave effect can be projected.

As shown in fig. 10-16, in some embodiments, the projection apparatus further includes a housing 40 and a mounting bracket 50, wherein the housing 40 is provided with a lamp hole 41, and the mounting bracket 50 is disposed inside the housing 40 and located corresponding to the position of the lamp hole 41; the first lens 110 is mounted in the housing 40 through the mounting frame 50, and the light-transmitting cover 130 is located at the cover hole 41. Preferably, the housing 40 includes a bottom case 410 and a face case 420 covering the bottom case 410; the transparent lampshade 130 is in a hollow hemispherical shape, the outer surface of the transparent lampshade is a smooth curved surface, and a plurality of irregular plano-convex lenses (121/122/123) arranged on the transparent lampshade 130 are arranged on the inner surface of the transparent lampshade 130. In some embodiments, a rotation shaft 55 is disposed at one of a central position of the mounting frame 50 and a central position of the first lens 110, and a shaft hole 113 is disposed at the other of the central position and the mounting frame 50, wherein the shaft hole 113 is sleeved on the rotation shaft 55 to realize the rotational connection between the first lens 110 and the mounting frame 50. In some embodiments, a stepped region 54 is provided at an end of the mounting bracket 50 near the lamp cover hole 41, and the first lens 110 is provided at the stepped region 54; the first light source 101 is located on a side of the first lens 110 away from the translucent lampshade 130, and the first light source 101 is offset from a rotation center of the first lens 110. The step area 54 is designed on the mounting frame 50, so that the internal structure of the projection device is simple and compact on one hand, and the assembly difficulty in the production process is also facilitated on the other hand. In addition, after the first lens 110 is mounted on the stepped region 54, the first lens 110 is limited in the space between the transparent lampshade 130 and the stepped region 54, so as to well limit the moving range of the first lens 110, and when the driving device 140 drives the first lens 110 to rotate, the first lens 110 can keep stable rotation, thereby ensuring stable projection effect. Because the first lens 110 is provided with the plurality of irregular hill-shaped planoconvex lenses 1111, the first light source 101 is designed to deviate from the rotation center of the first lens 110, so that when the first lens 110 rotates, different hill-shaped planoconvex lenses 1111 pass through the front of the emergent light of the first light source 101, thereby generating more various projection effects. Preferably, the first light source assembly 100 further includes a lamp panel 102, a lamp holder 103 and a light gathering member 104, the lamp panel 102 is installed on the mounting bracket 50, the first light source 101 is an LED lamp bead, and the lamp holder 103 is installed on the mounting bracket 50 and located outside the LED lamp bead; the light gathering part 104 is mounted on the lamp holder 103 and used for gathering light for the LED lamp beads. Preferably, the light-gathering part 104 can be a light-gathering lens or a light-reflecting cup, and the LED lamp beads are RGB lamp beads.

As shown in fig. 12-16, in some embodiments, the projection device further includes a second projection assembly 20 and a third projection assembly 30; the second projection assembly 20 includes a second light source 210 for generating laser, a heat dissipation bracket 220 installed outside the second light source 210, and a grating sheet (arranged on the grating sheet bracket 230) arranged in the laser emitting direction of the second light source 210; the third projection assembly 30 includes a third light source 310, a film 320 having a pattern, a convex lens 330 for magnifying the projected pattern, and a lens holder 340 for mounting the film 320 and the convex lens 330. The laser emitted by the second light source 210 passes through the grating plate to generate diffraction spots, and the effect of stars is projected. The light emitted from the third light source 310 passes through the film 320 and the convex lens 330, and then the projection effect of the slide can be projected. For example, a pattern of the moon or the earth may be printed on the film 320, so that a projection effect of the moon or the earth may be projected. After the second projection element 20 and the third projection element 30 are disposed, the projection apparatus of the present embodiment can project a plurality of projection effects having both starry, polar (galaxy, or water wave, etc.) and lunar (or earth), and when the first lens 110 rotates, the polar (galaxy, or water wave, etc.) can also exhibit a dynamic change effect. Further, in order to provide power for the related light source and the motor 141, a power supply interface 90 of a rechargeable battery or an external power supply is further disposed in the housing 40 of the projection apparatus of this embodiment, and in order to enrich the functions of the projection apparatus, a speaker unit 60, a circuit board 70, a function button 80, and other components are further disposed in the housing 40.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A projection device comprising a first projection assembly, wherein the first projection assembly comprises:

the driving device is connected with the first lens and is used for driving the first lens to rotate;

wherein, be equipped with a plurality of anomalous plano-convex lens on the printing opacity lamp shade, just plano-convex lens on the mere exit face of printing opacity lamp shade with plano-convex lens shape on the mere exit face of first lens is different.

2. The projection apparatus according to claim 1, wherein the plurality of irregular plano-convex lenses provided on the light exit surface of the first lens are hill-shaped plano-convex lenses; the light-transmitting lampshade is characterized in that a plurality of irregular plano-convex lenses arranged on the light-transmitting lampshade are arranged on the inner surface of the light-transmitting lampshade, and the irregular plano-convex lenses are one or the combination of two of long-strip plano-convex lenses, vortex plano-convex lenses and polygonal plano-convex lenses.

3. The projection apparatus according to claim 1, wherein the first lens includes a lens portion and a tooth portion, the plurality of irregular plano-convex lenses are provided on the lens portion, and the tooth portion is provided with engaging teeth; the driving device comprises a motor and a gear directly or indirectly driven by the motor, and when the motor drives the gear to rotate, the gear drives the light-transmitting lampshade to rotate through the tooth part.

4. The projection apparatus according to claim 3, wherein the tooth portion is provided around the periphery of the lens portion and protrudes from an end surface of the lens portion, and the engaging tooth is located on an inner side wall or an outer side wall of the tooth portion.

5. The projection apparatus of claim 1, wherein the driving means comprises a motor and a belt drive assembly connecting the motor and the first lens, the motor driving the first lens to rotate through the belt drive assembly.

6. The projection device according to any of claims 1-5, further comprising a housing having a lamp hole and a mounting bracket disposed within the housing and positioned to correspond to the lamp hole; the first lens passes through the mounting bracket is installed in the shell, the light-transmitting lampshade is located lampshade hole.

7. The projection apparatus as claimed in claim 6, wherein a rotation shaft is disposed on one of the center of the mounting bracket and the center of the first lens, and a shaft hole is disposed on the other of the center of the mounting bracket and the center of the first lens, and the shaft hole is sleeved on the rotation shaft to rotatably connect the first lens and the mounting bracket.

8. The projection apparatus according to claim 6, wherein a stepped region is provided at an end of the mounting bracket adjacent to the lamp housing hole, the first lens being disposed in the stepped region; the first light source is positioned on one side, departing from the light-transmitting lampshade, of the first lens, and the first light source deviates from the rotation center of the first lens.

9. The projection apparatus according to claim 8, wherein the first light source assembly further includes a lamp panel, a lamp holder, and a light-collecting member, the lamp panel is mounted on the mounting bracket, the first light source is an LED lamp bead, and the lamp holder is mounted on the mounting bracket and located outside the LED lamp bead; the light condensing part is arranged on the lamp holder and is used for condensing light of the LED lamp beads.

10. The projection device of any of claims 1-5, further comprising a second projection assembly and a third projection assembly;