Double-projection imaging device and lamp

Abstract

The utility model discloses a double-projection imaging device and a lamp, the double-projection imaging device comprises a first projection assembly, the first projection assembly comprises a first light source, a first lens, a first pattern sheet and a second lens, the first lens, the first pattern sheet and the second lens are sequentially arranged on a light emitting path of the first light source; the second projection assembly comprises a second light source, a light guide part and a grating, and light rays of the second light source penetrate through the light guide part and irradiate the projection imaging surface through the grating; and the driving assembly comprises a driving part and a transmission part, and the driving part drives the transmission part to drive the first pattern sheet and the light guide part to rotate, so that projection patterns formed on the projection imaging surface by the first projection assembly and the second projection assembly synchronously move. The double-projection imaging device provided by the utility model can meet diversified imaging requirements of a user on a projection lamp, realizes dynamic change of projection patterns, and further enriches projection experience.

Description

Technical Field

[0001] This utility model relates to the field of projection device technology, and in particular to a dual-projection imaging device and lamp. Background Technology

[0002] As people's living standards improve, their requirements for creating indoor atmosphere are constantly changing. Traditional methods of creating atmosphere by placing objects or pasting / painting wallpaper can no longer meet user needs. With the widespread use of projectors, users have begun to use them as a way to create indoor atmosphere. Furthermore, because projectors provide both ambiance and lighting, they are very popular.

[0003] Existing projectors project relatively simple images, with each projector typically corresponding to only one type of image. For scenes with many imaging elements, projectors with a single imaging capability cannot meet the requirements for diverse imaging. If multiple projectors are selected and matched, on the one hand, the placement of the projectors needs to be coordinated, causing inconvenience in use, and on the other hand, it also occupies placement space and increases the user's purchase cost.

[0004] Therefore, the existing technology still needs to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dual projection imaging device and lamp, which aims to at least solve the problem of poor performance of projection lamps in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dual-projection imaging device, comprising:

[0008] The first projection component includes a first light source, a first lens, a first pattern sheet, and a second lens, wherein the first lens, the first pattern sheet, and the second lens are sequentially disposed on the light emission path of the first light source.

[0009] The second projection component includes a second light source, a light guide, and a grating. The light guide has a hollow structure and is disposed on the light output path of the second light source. The grating is located on the side away from the second light source and is disposed on the end of the light guide. The light from the second light source passes through the light guide and is irradiated onto the projection imaging surface via the grating.

[0010] A driving component, comprising a driving element and a transmission element, wherein the driving element is connected to the transmission element and drives the first pattern sheet and the light guide to rotate by driving the transmission element, so that the projection patterns formed by the first projection component and the second projection component on the projection imaging surface move synchronously.

[0011] The transmission component includes a driving gear, a first driven gear, and a second driven gear. The driving gear is simultaneously connected to the first driven gear and the second driven gear. The driving gear is located at the output end of the driving component. The first driven gear is fixedly connected to the first patterned sheet through a connecting shaft. The second driven gear is sleeved on the outer periphery of the light guide.

[0012] The transmission assembly further includes an intermediate transmission gear, and the driving gear is connected to the first driven gear and the second driven gear through the intermediate transmission gear.

[0013] The first projection component further includes a second patterned sheet, which is disposed between the first lens and the first patterned sheet along the light emission path of the first light source; in the light emission path of the first light source, a portion of the first patterned sheet blocks a portion or all of the second patterned sheet.

[0014] The number of teeth of the first driven gear is less than the number of teeth of the second driven gear, and the number of teeth of the driving gear is less than the number of teeth of the intermediate transmission gear.

[0015] The gear ratio of the first driven gear to the second driven gear is 4:7, the gear ratio of the first driven gear to the driving gear is 1:1, and the gear ratio of the intermediate transmission gear to the second driven gear is 1:1.

[0016] The first lens and the second lens are convex lenses, the first light source is an LED light source mounted on a circuit board, the second light source is a laser generator, and a heat sink is provided around the second light source.

[0017] A lighting fixture includes a housing, a mounting bracket, a cover plate, and the aforementioned dual-projection imaging device. The dual-projection imaging device is mounted on the mounting bracket, the housing is fitted around the outer periphery of the mounting bracket, the mounting bracket has a light-transmitting hole for projecting a projection pattern from a second projection component onto the projection imaging surface, the cover plate is disposed on the mounting bracket, and the cover plate is made of a light-transmitting or semi-light-transmitting material. A first lens protrudes from the end faces of the mounting bracket and the cover plate.

[0018] The mounting bracket includes an upper mounting bracket disposed on the stepped surface at the end of the housing. A mounting ring is mounted on the lower end of the upper mounting bracket. The lower edge of the first lens is located within the space defined by the upper mounting bracket and the mounting ring. The upper end of the first lens protrudes from the end face of the upper mounting bracket. A support base is provided on the end of the light guide for mounting the grating. The upper end of the support base extends into the light-transmitting hole.

[0019] The mounting bracket further includes a lower mounting bracket, which is fitted inside the housing. A mounting platform is disposed within the lower mounting bracket. The first light source is positioned below the mounting platform via a circuit board. The first lens is located between the mounting platform and the circuit board. The first patterned sheet is rotatably disposed above the mounting platform via a connecting shaft. The driving component is positioned below the mounting platform, and its output end passes through the mounting platform and connects to a transmission component below the first patterned sheet. The second light source is positioned below the mounting platform, and the light guide is rotatably disposed on the mounting platform.

[0020] Compared to existing technologies, this utility model provides a dual-projection imaging device and lamp. The dual-projection imaging device includes:

[0021] The first projection component includes a first light source, a first lens, a first pattern sheet, and a second lens, wherein the first lens, the first pattern sheet, and the second lens are sequentially disposed on the light emission path of the first light source.

[0022] The second projection component includes a second light source, a light guide, and a grating. The light guide has a hollow structure and is disposed on the light output path of the second light source. The grating is located on the side away from the second light source and is disposed on the end of the light guide. The light from the second light source passes through the light guide and is irradiated onto the projection imaging surface via the grating.

[0023] A driving component, comprising a driving element and a transmission element, is provided. The driving element is connected to the transmission element and drives the first pattern sheet and the light guide to rotate, thereby causing the projected patterns formed by the first and second projection components on the projection imaging surface to move synchronously. This dual-projection imaging device, through synchronous projection by two projection components, eliminates the need for users to arrange two single-pattern projection devices together, thus meeting diverse imaging requirements of the projection lamp. Simultaneously, the driving element, via the transmission element, drives the gratings on the first pattern sheet and the light guide to rotate, causing the patterns on the first and second projection components to move synchronously on the projection imaging surface, achieving dynamic changes in the projected patterns and further enriching the projection experience. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the lamp provided by this utility model.

[0025] Figure 2 An exploded view of the lamp provided by this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the dual-projection imaging device provided by this utility model.

[0027] Figure 4 A top view of the lamp provided by this utility model.

[0028] Figure 5 for Figure 4 A schematic diagram of the cross section at section A-A.

[0029] Figure 6 for Figure 4 A schematic diagram of the cross-section at section B-B.

[0030] Figure 7 This is a schematic diagram of the lower mounting bracket of the lamp provided by this utility model at one angle.

[0031] Figure 8 This is a schematic diagram of the lower mounting bracket of the lamp provided by this utility model from another angle.

[0032] Attached icon number

[0033] First projection component 1, first light source 11, first lens 12, first pattern sheet 13, second lens 14, second pattern sheet 15, second projection component 2, second light source 21, light guide 22, grating 23, heat sink 24, drive component 31, drive gear 321, first driven gear 322, second driven gear 323, intermediate transmission gear 324, connecting shaft 41, circuit board 42, housing 51, upper mounting bracket 521, lower mounting bracket 522, cover plate 53, light-transmitting hole 54, base 55, mounting ring 56, support base 57, mounting platform 58, annular limiting part 59, battery tray 61, battery 62. Detailed Implementation

[0034] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0035] It should be noted that when a component is referred to as being "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0036] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0037] As people's living standards improve, their requirements for creating indoor atmosphere are constantly changing. Traditional methods of creating atmosphere by placing objects or pasting / painting wallpaper can no longer meet user needs. With the widespread use of projectors, users have begun to use them as a way to create indoor atmosphere. Furthermore, because projectors provide both ambiance and lighting, they are very popular.

[0038] Existing projectors project relatively simple images, with each projector typically corresponding to only one type of image. For scenes with many imaging elements, projectors with a single imaging capability cannot meet the requirements for diverse imaging. If multiple projectors are selected and matched, on the one hand, the placement of the projectors needs to be coordinated, causing inconvenience in use, and on the other hand, it also occupies placement space and increases the user's purchase cost.

[0039] To at least address the problem of poor projection lamp performance in the background art, this utility model provides a dual-projection imaging device. Please refer to [link to relevant documentation]. Figure 1 - Figure 6 ,include:

[0040] The first projection component 1 includes a first light source 11, a first lens 12, a first pattern sheet 13, and a second lens 14. The first lens 12, the first pattern sheet 13, and the second lens 14 are sequentially disposed on the light emission path of the first light source 11.

[0041] The second projection component 2 includes a second light source 21, a light guide 22, and a grating 23. The light guide 22 has a hollow structure and is disposed on the light output path of the second light source 21. The grating 23 is disposed on the side away from the second light source 21 and at the end of the light guide 22. The light from the second light source 21 passes through the light guide 22 and is irradiated onto the projection imaging surface by the grating 23.

[0042] The driving component includes a driving element 31 and a transmission element. The driving element 31 is connected to the transmission element and drives the first pattern sheet 13 and the light guide 22 to rotate, so that the projected patterns formed by the first projection component 1 and the second projection component 2 on the projection imaging surface move synchronously. This dual-projection imaging device of the present invention, through synchronous projection imaging by two projection components, eliminates the need for users to arrange two single-pattern projection devices together, thus meeting the diverse imaging requirements of the projection lamp. Simultaneously, the driving element 31 drives the grating 23 on the first pattern sheet 13 and the light guide 22 to rotate via the transmission element, causing the patterns on the first projection component 1 and the second projection component 2 to move synchronously on the projection imaging surface, realizing dynamic changes in the projected patterns and further enriching the projection experience.

[0043] Furthermore, the transmission component includes a driving gear 321, a first driven gear 322, and a second driven gear 323. The driving gear 321 is simultaneously connected to the first driven gear 322 and the second driven gear 323. The driving gear 321 is located at the output end of the driving component 31. The first driven gear 322 is fixedly connected to the first pattern sheet 13 via a connecting shaft 41. The second driven gear 323 is sleeved on the outer periphery of the light guide 22. In this embodiment, gear transmission is used to drive the first pattern sheet 13 and the light guide 22 to rotate, thereby achieving a dynamic projection imaging effect. The gear transmission structure is simple and has high transmission efficiency, which can stably transmit the power of the driving component 31 to the first pattern sheet 13 and the light guide 22, ensuring the stability and reliability of the synchronous movement of the projected pattern. At the same time, the gear transmission setting facilitates the adjustment of the transmission ratio, which can better meet the dynamic effect requirements of the projected pattern.

[0044] Furthermore, the transmission assembly also includes an intermediate transmission gear 324, through which the driving gear 321 is connected to the first driven gear 322 and the second driven gear 323.

[0045] In this embodiment, the first driven gear 322, the second driven gear 323, and the driving gear 321 are arranged around the intermediate transmission gear 324 and all mesh with the circumference of the intermediate transmission gear 324. The driving gear 321 drives the first driven gear 322 and the second driven gear 323 to rotate through the intermediate transmission gear 324. When the driving gear 321 directly drives the first driven gear 322 and the second driven gear 323 to rotate, since the two driven gears mesh with the driving gear 321 at the same time, a large meshing force and impact force may be generated, which can easily lead to gear wear, reduced transmission accuracy, or even failure. However, by introducing the intermediate transmission gear 324, the transmission process is equivalent to dividing it into two stages. The driving gear 321 first drives the intermediate transmission gear 324, and then the intermediate transmission gear 324 drives the driven gears. The intermediate transmission gear can play a buffering and protective role, reduce the direct impact between the driving gear 321 and the driven gears, extend the service life of the gears, and improve the stability and reliability of the transmission system.

[0046] Furthermore, the number of teeth of the first driven gear 322 is less than the number of teeth of the second driven gear 323, and the number of teeth of the driving gear 321 is less than the number of teeth of the intermediate transmission gear 324. The tooth ratio of the first driven gear 322 to the second driven gear 323 is 4:7, the tooth ratio of the first driven gear 322 to the driving gear 321 is 1:1, and the tooth ratio of the intermediate transmission gear 324 to the second driven gear 323 is 1:1. In this embodiment, the first driven gear 322 has 20 teeth, the second driven gear 323 has 35 teeth, the intermediate transmission gear 324 has 35 teeth, and the driving gear 321 has 20 teeth. The number of teeth of the driving gear 321 is less than the number of teeth of the intermediate transmission gear 324, and the inertial force that the driving gear 321 needs to overcome when rotating is relatively small, which helps to reduce the load on the drive component 31. The driving component 31 operates under a lower load, which not only reduces energy consumption and energy costs, but also extends the service life of the driving component 31, reduces maintenance costs and the probability of failure. When the driving gear 321 drives the intermediate transmission gear 324 to reduce its speed, the torque will increase accordingly, which will help the intermediate transmission gear 324 to drive the first driven gear 322 and the second driven gear 323 to rotate more powerfully, thereby driving the first patterned sheet 13 and the light guide 22 to rotate, thus ensuring the reliability of synchronous movement.

[0047] Furthermore, the first projection component 1 also includes a second pattern sheet 15, which is disposed between the first lens 12 and the first pattern sheet 13 along the light emission path of the first light source 11; on the light emission path of the first light source 11, a portion of the first pattern sheet 13 blocks a portion or all of the second pattern sheet 15.

[0048] In this embodiment, when the dual projection device is placed inside the projection lamp, the first pattern sheet 13 is rotatably disposed inside the dual projection lamp, and the second pattern sheet 15 is fixedly disposed inside the dual projection lamp. The first pattern sheet 13 and the second pattern sheet 15 are made of water ripple glass. Water ripple glass has unique texture and optical properties, and light will be refracted and scattered when it passes through the water ripple glass. Combining the two pattern sheets, one static and one dynamic, ensures a clearer projection effect. It can create natural and dynamic projection effects such as shimmering water surfaces, increasing the interest and visual appeal of the projection. The pattern formed by the second light source 21 on the projection imaging surface through the grating 23 is a starry sky pattern, thereby creating a mysterious and romantic atmosphere. Combining the pattern of the first projection component 1 on the projection imaging surface and the pattern of the second projection component 2 on the projection imaging surface can bring a unique visual experience to the user. The number of teeth on the first driven gear 322 is the same as the number of teeth on the driving gear 321, and the number of teeth on the second driven gear 323 is the same as the number of teeth on the intermediate transmission gear 324. Specifically, the number of teeth on the first driven gear 322 is set to 20, and the number of teeth on the second driven gear 323 is set to 35. Through precise tooth setting, the rotation speeds of the first pattern sheet 13 and the light guide 22 form a specific proportional relationship, forming a regular and coordinated dynamic projection combination on the projection imaging surface, making the dynamic changes of the projected pattern more natural.

[0049] In this embodiment, the first pattern sheet 13 is circular, and the second pattern sheet 15 is rectangular or other shapes. Since the first pattern sheet 13 needs to be rotated by the first driven gear 322, in order to avoid the first driven gear 322 affecting the projection effect of light through the second pattern sheet 15, the first driven gear 322 and the second pattern sheet 15 are misaligned. Therefore, the centers of the first pattern sheet 13 and the second pattern sheet 15 are not on the same axis. In order to ensure that the light from the first light source 11 passes through the first pattern sheet 13 and the second pattern sheet 15, a part of the first pattern sheet 13 blocks a part or all of the second pattern sheet 15. At this time, the overlapping area of ​​the first pattern sheet 13 and the second pattern sheet 15 is the area through which the light path of the first light source 11 passes.

[0050] Furthermore, the first lens 12 and the second lens 14 are convex lenses, the first light source 11 is an LED light source disposed on the circuit board 42, the second light source 21 is a laser generating device, and a heat sink 24 is disposed on the periphery of the second light source 21.

[0051] In this embodiment, the first lens 12 and the second lens 14 are convex lenses. Convex lenses have the characteristic of converging light. In the first projection assembly 1, the first lens 12 can initially converge the diverging light emitted by the first light source 11, so that the light is more concentrated on the first pattern sheet 13. The second lens 14 further focuses the light passing through the pattern sheets, ensuring that a clear and sharp projection pattern is formed on the projection imaging surface, thus enhancing the clarity and brightness of the projection effect. The first light source 11 is an LED light source mounted on the circuit board 42. This is because the brightness, color, and other parameters of the LED light source can be easily controlled through the circuit board 42 to achieve diverse projection effects. The heat sink 24 is a heat dissipation fin. The heat sink 24 is arranged around the periphery of the second light source 21 to ensure that the laser generating device operates at a stable temperature, thereby improving the stability and reliability of the projection effect. The second light source 21 uses a laser generator to project a dynamic starry sky pattern. This is because lasers have high brightness and high directionality, enabling them to propagate over long distances. After being adjusted by the grating 23, they can form a bright and clear starry sky pattern on the projection surface, presenting a stunning visual effect even in relatively dark environments. At the same time, the narrow spectrum and high color purity of lasers make the projected starry sky pattern vivid, realistic, and more artistically appealing.

[0052] This application also provides a corresponding lamp fixture; please refer to [link / reference]. Figure 1 - Figure 8 The lamp includes a housing 51, a mounting frame, a cover plate 53, and the aforementioned dual-projection imaging device. The dual-projection imaging device is mounted on the mounting frame, and the housing 51 is fitted around the outer periphery of the mounting frame. The mounting frame has a light-transmitting hole 54 for projecting the projection pattern of the second projection component 2 onto the projection imaging surface. The cover plate 53 is disposed on the mounting frame and is made of a light-transmitting or semi-light-transmitting material. The first lens 12 protrudes from the end faces of the mounting frame and the cover plate 53. The lamp using the dual-projection imaging device of this application can achieve a dual-pattern projection effect within a single lamp, providing rich projection imaging effects, improving the user experience, and featuring a compact overall structure with minimal space occupation. In this embodiment, the lamp also includes a base 55, a mounting bracket and a housing 51 disposed on the base 55, and the lower end of the mounting bracket is screwed to the base 55. A gasket is provided at the lower end of the base 55. A cover plate 53 is placed on the upper end of the mounting bracket and is flush with the upper surface of the housing 51. The cover plate 53 is made of a light-transmitting or semi-light-transmitting material, which will not obstruct the projection effect of the second projection component 2, ensuring the stability of the projection imaging effect. At the same time, it can also cover the internal structure of the lamp and improve the aesthetics of the lamp. The use of a semi-transparent material can also scatter light to a certain extent, making the projection light of the second projection component 2 more uniform, reducing light spots and uneven brightness, and improving the quality and effect of projection imaging.

[0053] Furthermore, the mounting bracket includes an upper mounting bracket 521, which is disposed on the stepped surface at the end of the housing 51. A mounting ring 56 is mounted on the lower end of the upper mounting bracket 521 and the two are screwed together. The lower edge of the first lens 12 is located within the space defined by the upper mounting bracket 521 and the mounting ring 56. The upper end of the first lens 12 protrudes from the end face of the upper mounting bracket 521. A support base 57 is provided on the end of the light guide 22 for mounting the grating 23. The upper end of the support base 57 extends into the light-transmitting hole 54. In this embodiment, a mounting ring 56 is provided at the lower end of the upper mounting bracket 521. The lower edge of the first lens 12 is supported on the mounting ring 56. The upper mounting bracket 521 presses against the lower edge of the first lens 12. The upper mounting bracket 521 and the mounting ring 56 are screwed together to realize the installation and fixation of the first lens 12. The light guide 22 is a hollow cylindrical structure. A support seat 57 is sleeved on the upper end of the light guide 22. The light guide 22 and the support seat 57 can be connected by interference fit, welding or bonding to ensure the second driven When gear 323 rotates, light guide 22 can synchronously drive grating 23 to rotate. The upper and lower ends of support base 57 are open to allow light from the second projection component 2 to pass through. The upper opening of support base 57 extends towards its center with a support step. The upper end of the support step is used to place grating 23. The lower end of the support step is in contact with the upper end of light guide 22. A ring-shaped support is also provided on the periphery of light guide 22. The ring-shaped support is in contact with the lower end of support base 57 to ensure the stability of support base 57 installed at the end of light guide 22.

[0054] Furthermore, the mounting bracket also includes a lower mounting bracket 522, which is sleeved inside the housing 51. A mounting platform 58 is provided inside the lower mounting bracket 522. The first light source 11 is disposed below the mounting platform 58 via a circuit board 42. The first lens 12 is located between the mounting platform 58 and the circuit board 42. The first patterned sheet 13 is rotatably disposed above the mounting platform 58 via a connecting shaft 41. The driving member 31 is disposed below the mounting platform 58, and the output end of the driving member 31 passes through the mounting platform 58 and is connected to a transmission member below the first patterned sheet 13. The second light source 21 is disposed below the mounting platform 58. The light guide 22 is rotatably disposed on the mounting platform 58. The second patterned sheet 15 is disposed on the upper surface of the mounting platform 58. The lower mounting bracket 522 and the mounting platform 58 are integrally formed. The upper end of the mounting platform 58 is provided with four upper threaded posts for supporting and fixing the upper mounting bracket 521. The lower part of the mounting platform 58 is also provided with a battery tray 61 and a battery 62. The battery 62 is electrically connected to the first projection component 1, the drive component and the second projection component 2 through the circuit board 42 or directly. The lower end of the mounting platform 58 is provided with several lower threaded posts for screwing and fixing the circuit board 42, the battery tray 61 and the base 55. The battery tray 61 is located below the first projection component 1 and the second projection component 2, and the battery is installed on the lower end surface of the battery tray 61. In this embodiment, within the lower mounting bracket 522, the battery tray 61 is mounted below the circuit board 42 via a threaded post. A first light source 11 is mounted on the circuit board 42. The lower end of a first lens 12 is mounted on the circuit board 42 and positioned along the light emission path of the first light source 11. The upper end of the first lens 12 is fitted within an annular limiting portion 59 extending from the lower end of the mounting platform 58, ensuring the first lens 12 is stable. A second patterned sheet 15 is located above the first lens 12 and confined on the mounting platform 58. A second projection assembly 2 is located on one side of the first projection assembly 1. The second light source 21 is fixed to the lower end of the mounting platform 58. The lower end of the light guide 22 is rotatably mounted. Within the through hole of the mounting platform 58, the drive component 31 is located between the first projection component 1 and the second projection component 2, and is fixed to the lower end of the mounting platform 58. The drive component 31 is a motor, and its output end passes through the mounting platform 58 and is connected to the drive gear 321. The first driven gear 322, the second driven gear 323, and the drive gear 321 are located on the periphery of the intermediate transmission gear 324 and mesh with the teeth of the intermediate transmission gear 324 respectively. The first patterned sheet 13 and the first driven gear 322 are rotatably mounted on the mounting platform 58 via the connecting shaft 41, and the first patterned sheet 13 is located above the first driven gear 322. The overall mounting structure is compact and occupies less space.

[0055] In summary, this utility model provides a dual-projection imaging device and a lamp. The dual-projection imaging device includes:

[0056] The first projection component includes a first light source, a first lens, a first pattern sheet, and a second lens, wherein the first lens, the first pattern sheet, and the second lens are sequentially disposed on the light emission path of the first light source.

[0057] The second projection component includes a second light source, a light guide, and a grating. The light guide has a hollow structure and is disposed on the light output path of the second light source. The grating is located on the side away from the second light source and is disposed on the end of the light guide. The light from the second light source passes through the light guide and is irradiated onto the projection imaging surface via the grating.

[0058] A driving component, comprising a driving element and a transmission element, is provided. The driving element is connected to the transmission element and drives the first pattern sheet and the light guide to rotate, thereby causing the projected patterns formed by the first and second projection components on the projection imaging surface to move synchronously. This dual-projection imaging device, through synchronous projection by two projection components, eliminates the need for users to arrange two single-pattern projection devices together, thus meeting diverse imaging requirements of the projection lamp. Simultaneously, the driving element, via the transmission element, drives the gratings on the first pattern sheet and the light guide to rotate, causing the patterns on the first and second projection components to move synchronously on the projection imaging surface, achieving dynamic changes in the projected patterns and further enriching the projection experience.

[0059] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. A dual-projection imaging device, characterized in that, include: The first projection component includes a first light source, a first lens, a first pattern sheet, and a second lens, wherein the first lens, the first pattern sheet, and the second lens are sequentially disposed on the light emission path of the first light source. The second projection component includes a second light source, a light guide, and a grating. The light guide has a hollow structure and is disposed on the light output path of the second light source. The grating is located on the side away from the second light source and is disposed on the end of the light guide. The light from the second light source passes through the light guide and is irradiated onto the projection imaging surface via the grating. A driving component, comprising a driving element and a transmission element, wherein the driving element is connected to the transmission element and drives the first pattern sheet and the light guide to rotate by driving the transmission element, so that the projection patterns formed by the first projection component and the second projection component on the projection imaging surface move synchronously.

2. The dual-projection imaging device according to claim 1, characterized in that, The transmission component includes a driving gear, a first driven gear, and a second driven gear. The driving gear is simultaneously connected to the first driven gear and the second driven gear. The driving gear is located at the output end of the driving component. The first driven gear is fixedly connected to the first patterned sheet through a connecting shaft. The second driven gear is sleeved on the outer periphery of the light guide.

3. The dual-projection imaging device according to claim 2, characterized in that, The transmission component also includes an intermediate transmission gear, and the driving gear is connected to the first driven gear and the second driven gear through the intermediate transmission gear.

4. The dual-projection imaging device according to claim 3, characterized in that, The first projection component further includes a second patterned sheet, which is disposed between the first lens and the first patterned sheet along the light emission path of the first light source; in the light emission path of the first light source, a portion of the first patterned sheet blocks a portion or all of the second patterned sheet.

5. The dual-projection imaging device according to claim 3, characterized in that, The number of teeth of the first driven gear is less than the number of teeth of the second driven gear, and the number of teeth of the driving gear is less than the number of teeth of the intermediate transmission gear.

6. The dual-projection imaging device according to claim 5, characterized in that, The gear ratio of the first driven gear to the second driven gear is 4:7, the gear ratio of the first driven gear to the driving gear is 1:1, and the gear ratio of the intermediate transmission gear to the second driven gear is 1:

1.

7. The dual-projection imaging device according to claim 1, characterized in that, The first lens and the second lens are convex lenses, the first light source is an LED light source mounted on a circuit board, the second light source is a laser generator, and a heat sink is provided around the second light source.

8. A lamp, characterized in that, The device includes a housing, a mounting frame, a cover plate, and a dual-projection imaging device as described in any one of claims 1-7. The dual-projection imaging device is mounted on the mounting frame, the housing is fitted around the outer periphery of the mounting frame, the mounting frame is provided with a light-transmitting hole for the projection pattern of the second projection component to be projected onto the projection imaging surface, the cover plate is disposed on the mounting frame, and the cover plate is made of a light-transmitting or semi-light-transmitting material, and the first lens protrudes from the end faces of the mounting frame and the cover plate.

9. The lamp according to claim 8, characterized in that, The mounting bracket includes an upper mounting bracket disposed on the stepped surface at the end of the housing. A mounting ring is mounted on the lower end of the upper mounting bracket. The lower edge of the first lens is located within the space defined by the upper mounting bracket and the mounting ring. The upper end of the first lens protrudes from the end face of the upper mounting bracket. A support base is provided on the end of the light guide for mounting the grating. The upper end of the support base extends into the light-transmitting hole.

10. The lamp according to claim 9, characterized in that, The mounting bracket further includes a lower mounting bracket, which is fitted inside the housing. A mounting platform is disposed within the lower mounting bracket. The first light source is positioned below the mounting platform via a circuit board. The first lens is located between the mounting platform and the circuit board. The first patterned sheet is rotatably disposed above the mounting platform via a connecting shaft. The driving component is positioned below the mounting platform, and its output end passes through the mounting platform and connects to a transmission component below the first patterned sheet. The second light source is positioned below the mounting platform, and the light guide is rotatably disposed on the mounting platform.

Images