Double-pattern-piece projection device and dynamic projection lamp using same

Abstract

The utility model provides a double pattern sheet projection device and a dynamic projection lamp using the same, the double pattern sheet projection device comprises a first light source part, a second light source part, a first pattern sheet part, a second pattern sheet part, a reflection part and an imaging part, the first pattern sheet part is matched with the first light source part, and the second pattern sheet part is matched with the second light source part. The first pattern sheet part is matched with the first light source part, the second pattern sheet part is matched with the second light source part, the reflecting part is arranged between the first pattern sheet part and the second pattern sheet part and matched with the first pattern sheet part and the second pattern sheet part, the imaging part is matched with the reflecting part, and the first pattern sheet part comprises a first pattern sheet provided with a plurality of first light holes; the second pattern sheet part comprises a second pattern sheet provided with a plurality of second light holes. The device adopts a light path generation structure of double light sources and double pattern sheets, and is matched with the reflecting part capable of rotating at a high speed, so that the defects of a single pattern sheet can be effectively overcome, and the device is long in service life, good in dynamic projection effect and long in dynamic projection time.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a dual-patterned film projection device and a dynamic projection lamp using the same. Background Technology

[0002] The pattern light consists of a light source and a pattern disk. The pattern disk has several light-transmitting holes, each with a pattern light-transmitting sheet printed with the pattern corresponding to different frames in the animation. The position of the light source is fixed, and the light beam from the light source corresponds to a specific light-transmitting hole. During the operation of the pattern light, the pattern disk rotates at high speed, causing each light-transmitting hole to pass sequentially through the light beam from the light source, thus projecting frames of patterns sequentially onto the projection surface. Due to the high rotation speed of the pattern disk, the frames of patterns projected onto the projection surface form an animation.

[0003] Currently, dynamic pattern lights or dynamic projection lights on the market are mainly divided into two categories based on the number of pattern pieces: single pattern pieces and double pattern pieces.

[0004] However, both of these categories have their drawbacks:

[0005] As shown in existing technologies such as CN 216844531 U and CN 109681834 A, dynamic pattern lights or dynamic projection lights with single pattern pieces achieve the pause and rotation of pattern pieces through intermittent motion mechanical structures. The disadvantages are: (1) the intermittent motion mechanical structure rotates at high speed in the high-temperature lamp body, which is easy to jam; (2) it is also difficult to synchronize the high-speed flicker of the light source with the light-transmitting hole of the pattern piece, which is easy to cause deviation; (3) only one pattern piece is set, and the output dynamic effect content is very short.

[0006] As shown in existing technologies such as CN 111059484 A, dynamic pattern lights or dynamic projection lights with dual pattern pieces achieve special effects by using two pattern pieces to rotate at high speed without stopping. The disadvantage is that the two pattern pieces overlap without stopping, so the specified projection effect content cannot be obtained. Utility Model Content

[0007] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a dual-pattern projection device, which can at least solve one of the problems in the prior art.

[0008] To achieve the above and other related objectives, this utility model provides a dual-pattern projection device, including a first light source, a second light source, a first patterned sheet, a second patterned sheet, a reflective part, and an imaging part. The first patterned sheet cooperates with the first light source, the second patterned sheet cooperates with the second light source, the reflective part is disposed between the first patterned sheet and the second patterned sheet and cooperates with the first patterned sheet and the second patterned sheet, and the imaging part cooperates with the reflective part. The first patterned sheet includes a first patterned sheet with a plurality of first light-transmitting holes, and the second patterned sheet includes a second patterned sheet with a plurality of second light-transmitting holes.

[0009] The first incident light path generated by the first light source can pass through one of the first light-transmitting holes of the first pattern piece and be reflected by the reflector to obtain the first reflected light path, which is finally projected out from the imaging unit.

[0010] The second incident light path generated by the second light source can pass through one of the second light-transmitting holes of the second pattern piece and obtain a second reflected light path through the reflector, and finally be projected out from the imaging unit.

[0011] In one embodiment of the present invention, the first reflected light path and the second reflected light path are generated alternately and projected alternately from the imaging unit.

[0012] In one embodiment of the present invention, the first patterned sheet portion further includes a first driving member, which is dynamically connected to the first patterned sheet.

[0013] In one embodiment of the present invention, the second patterned sheet portion further includes a second driving member, which is dynamically connected to the second patterned sheet.

[0014] In one embodiment of the present invention, the reflective part includes a reflective lens and a third driving member, the third driving member being dynamically connected to the reflective lens.

[0015] In one embodiment of the present invention, the reflective part further includes a first connector and a second connector, which are respectively installed at both ends of the reflective lens, and a third driving member is poweredly connected to the first connector or the second connector.

[0016] In one embodiment of the present invention, the reflector further includes a transmission assembly, the input end of which is poweredly connected to the third driving member, and the output end of which is drivenly connected to the first connector or the second connector.

[0017] In one embodiment of the present invention, the transmission assembly includes a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear is mounted on the driving end of the third driving member, and the third transmission gear is mounted on the outer periphery of the first connector or the second connector. The second transmission gear is connected to the first transmission gear and the third transmission gear respectively.

[0018] In one embodiment of the present invention, the dual-pattern projection device further includes an inner shell, inside which a first receiving cavity is formed, and the first light source, the second light source, the first pattern piece, the second pattern piece, and the reflector are all installed in the first receiving cavity.

[0019] To achieve the above and other related objectives, this utility model also provides a dynamic projection lamp, including a housing and a projection device mounted on the housing, wherein the projection device is the aforementioned dual-pattern projection device.

[0020] In one embodiment of the present invention, the dynamic projection lamp further includes a heat dissipation device, which includes a heat-conducting component and a heat sink. One end of the heat-conducting component is connected to the first light source part and the second light source part, and the other end is connected to the heat sink.

[0021] As described above, the dual-pattern projection device and the dynamic projection lamp using it of this utility model have the following beneficial effects:

[0022] 1. This utility model provides a novel dual-pattern projection device. The dual-pattern projection device adopts a light path generation structure of dual light sources + dual pattern sheets, combined with a high-speed rotating reflector, which can effectively solve the defects of a single pattern sheet. By having the dual pattern sheets work alternately, not only can the requirements for speed and flicker be halved, but the quality of accessories and technical requirements can be better guaranteed. Moreover, it can double the pattern effect, thereby achieving a longer-lasting dynamic effect. This device has the advantages of long service life, good dynamic projection effect and long duration.

[0023] 2. The first and second pattern pieces are driven by motors to rotate. By controlling the start and stop of the motors in conjunction with the strobe of the first and second light sources, the problems of jamming and positional displacement in traditional intermittent motion mechanical structures can be effectively solved. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the dual-pattern projection device according to Embodiment 1 of this utility model;

[0025] Figure 2 for Figure 1 One of the schematic diagrams of the three-dimensional structure of the dual-pattern projection device after omitting some of its structural features;

[0026] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the dual-pattern projection device after omitting some of its structural components;

[0027] Figure 4 This is a three-dimensional structural diagram of the reflective part of Embodiment 1 of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the first patterned piece in Embodiment 1 of the present invention;

[0029] Figure 6 This is a three-dimensional structural diagram of the dynamic projection lamp according to Embodiment 2 of this utility model;

[0030] Figure 7 for Figure 6 The diagram shows the three-dimensional structure of the dynamic projection lamp after omitting some of its structural elements.

[0031] Figure 8 for Figure 7 A side view of the dynamic projection lamp shown.

[0032] Figure 9 for Figure 8 The diagram shows a cross-sectional view of the dynamic projection lamp along the AA direction.

[0033] Figure 10 A three-dimensional structural schematic diagram of the dual-pattern projection device of Embodiment 3 of this utility model;

[0034] Figure 11 for Figure 10 A schematic diagram of the three-dimensional structure of the dual-pattern projection device after omitting some of its structural components;

[0035] Figure 12 This is a three-dimensional structural diagram of the reflective part of Embodiment 3 of this utility model;

[0036] Figure 13 This is a three-dimensional structural diagram of the dynamic projection lamp in Embodiment 4 of this utility model;

[0037] Figure 14 for Figure 13 The diagram shows the three-dimensional structure of the dynamic projection lamp after omitting some of its structural elements.

[0038] Figure 15 for Figure 14 A side view of the dynamic projection lamp shown.

[0039] Figure 16 for Figure 15 The diagram shows a cross-sectional view of the dynamic projection lamp along the BB direction.

[0040] Figure 17 This is a top view of the first and second patterned pieces in Embodiment 5 of this utility model.

[0041] Figure 1-17Reference numerals in the figures: 1-Outer shell; 2-Heat dissipation device; 3-Projection device; 4-Mounting bracket; 11-Front shell; 12-Rear shell; 21-Heat conductive component; 22-Heat radiator; 31-First light source unit; 32-Second light source unit; 33-First pattern piece unit; 34-Second pattern piece unit; 35-Reflective part; 36-Imaging part; 37-Inner shell; 38-First focusing part; 39-Second focusing part; 331-First pattern piece; 332-First driving component; 341-Second pattern piece; 342-Second driving component; 351-Reflecting lens; 352-Third driving component; 353-First connector; 354-Second connector; 355-Transmission assembly; 356-First bearing seat; 357-Second bearing seat; 331a-First light-transmitting hole; 341a-Second light-transmitting hole; 355a-First transmission gear; 355b-Second transmission gear; 355c-Third transmission gear. Detailed Implementation

[0042] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0043] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0044] Please see Figures 1-17 This utility model provides a dual-pattern projection device according to the following embodiments, which belongs to the field of lighting technology. It can overcome the defects of traditional pattern projection lamps, while also having the advantages of long service life and good projection effect.

[0045] Example 1

[0046] like Figure 1-5 As shown, this utility model provides one type of dual-pattern projection device.

[0047] The dual-pattern projection device includes a first light source 31, a second light source 32, a first patterned sheet 33, a second patterned sheet 34, a reflective part 35, and an imaging part 36. The first patterned sheet 33 cooperates with the first light source 31, the second patterned sheet 34 cooperates with the second light source 32, the reflective part 35 is disposed between and cooperates with the first patterned sheet 33 and the second patterned sheet 34, and the imaging part 36 cooperates with the reflective part 35. The first patterned sheet 33 includes a first patterned sheet 331 with a plurality of first light-transmitting holes 331a, and the second patterned sheet 34 includes a second patterned sheet 341 with a plurality of second light-transmitting holes 341a.

[0048] The first incident light path generated by the first light source unit 31 can pass through one of the first light-transmitting holes 331a of the first pattern sheet 331 and be reflected by the reflection unit 35 to obtain the first reflected light path, which is finally projected out from the imaging unit 36.

[0049] The second incident light path generated by the second light source unit 32 can pass through one of the second light-transmitting holes 341a of the second pattern sheet 341 and obtain the second reflected light path through the reflection unit 35, and finally be projected out from the imaging unit 36.

[0050] In this embodiment, the first light source unit 31 and the second light source unit 32 can operate independently or alternately, and the corresponding first pattern sheet unit 33 and second pattern sheet unit 34 operate following the first light source unit 31 and the second light source unit 32.

[0051] Preferably, the first and second reflected light paths are generated alternately and projected alternately from the imaging unit 36. This not only halves the driving speed requirements of the driving components of the first pattern sheet 33 and the second pattern sheet 34, as well as the flicker requirements of the light sources of the first light source 31 and the second light source 32, thus better ensuring the quality and technical requirements of these components, but also doubles the capacity to support the pattern effect, thereby achieving a longer-lasting dynamic effect. This gives the device the advantages of a long service life, excellent dynamic projection effect, and long duration.

[0052] In this embodiment, the first patterned sheet portion 33 further includes a first driving member 332, which is poweredly connected to the first patterned sheet 331.

[0053] Preferably, the first driving component 332 is a motor.

[0054] In this embodiment, the second patterned sheet portion 34 further includes a second driving member 342, which is poweredly connected to the second patterned sheet 341.

[0055] Preferably, the second drive component 342 is a motor.

[0056] In this embodiment, the reflective part 35 includes a reflective lens 351 and a third driving member 352, and the third driving member 352 is poweredly connected to the reflective lens 351.

[0057] Preferably, the third drive component 352 is a motor.

[0058] In this embodiment, the reflector 35 further includes a first connector 353 and a second connector 354, which are respectively installed at both ends of the reflector 351. The third drive member 352 is poweredly connected to the first connector 353 or the second connector 354.

[0059] Most preferably, in this embodiment, the third driving component 352 is poweredly connected to the first connector 353;

[0060] As a further preferred embodiment, the first connector 353 in this embodiment is fitted onto the drive end of the third drive member 352.

[0061] In this embodiment, the dual-pattern projection device 3 further includes an inner shell 37, inside which a first receiving cavity is formed. The first light source 31, the second light source 32, the first pattern piece 33, the second pattern piece 34, and the reflector 35 are all installed in the first receiving cavity.

[0062] Preferably, the inner shell 37 in this embodiment is cuboid in shape, and it can be formed by enclosing multiple fixing plates or fixing pieces.

[0063] In this embodiment, the reflective part 35 further includes a second bearing seat 357, which is mounted on the inner shell 37. In this embodiment, the end of the second connector 354 away from the reflective lens 351 is rotatably mounted on the second bearing seat 357.

[0064] In this embodiment, the first light source unit 31 may be composed of a first light source and a first mounting plate, with the first light source mounted on the first mounting plate. The first light source is preferably an LED light source or a laser light source. The second light source unit 32 may be composed of a second light source and a second mounting plate, with the second light source mounted on the second mounting plate. The second light source is preferably an LED light source or a laser light source.

[0065] In this embodiment, the dual-pattern projection device 3 further includes a first focusing part 38 and a second focusing part 39. The first focusing part 38 is fitted around the outer periphery of the first light source and is located between the first light source part 31 and the first pattern part 33. The second focusing part 39 is fitted around the outer periphery of the second light source and is located between the second light source part 32 and the second pattern part 34.

[0066] Preferably, the first focusing part 38 and the second focusing part 39 can be a focusing lens or a focusing lens group, and the imaging part 36 can be an imaging lens or an imaging lens group.

[0067] The working principle of the dual-pattern projection device 3 of this utility model is as follows:

[0068] S1. Start the first light source unit 31 to emit a light beam, which forms a focused light beam under the action of the first focusing unit 38, i.e., the first incident light path;

[0069] S2, the first incident light path passes through one of the first light-transmitting holes 331a in the first patterned sheet 331 (assuming that pattern number 1 is set in the first light-transmitting hole 331a);

[0070] S4. Control the reflector 351 of the reflector 35 to rotate to a position that forms a 45-degree angle with the first incident light path. The reflector 351 receives pattern No. 1 and forms the first reflected light path, which is then projected out through the imaging unit 36 ​​to obtain pattern No. 1.

[0071] S5. While performing step S3, one of the second light-transmitting holes 341a in the second pattern sheet 341 (assuming that pattern No. 2 is set in the second light-transmitting hole 341a) can be controlled to prepare at the position of the corresponding light-transmitting hole.

[0072] S6. The first light source 31 is turned off, and the reflector 351 of the control reflector 35 is rotated to a position at a 45-degree angle with the second incident light path, ready to receive pattern No. 2.

[0073] S7. The second light source unit 32 is activated to emit a light beam. Under the action of the second light-concentrating unit 39, a concentrated light beam is formed, which is the second incident light path. The reflecting lens 351 receives the pattern No. 2 and forms the second reflected light path. Then, it is projected out through the imaging unit 36 ​​to obtain the pattern No. 2.

[0074] S8. Repeat steps S1-S7 until all effects on the first pattern piece 331 and the second pattern piece 341 are projected, and then loop.

[0075] As described above, the dual-pattern projection device 3 of this invention has at least the following advantages compared to the conventional projection device 3:

[0076] 1. This utility model provides a novel dual-pattern projection device 3. The dual-pattern projection device 3 adopts an incident light path generation structure of dual light sources + dual pattern sheets, and is combined with a high-speed rotating reflector 35 to reflect the light path, which is then projected out by the imaging unit 36 ​​to obtain a dynamic pattern effect. It can effectively solve the defects of a single pattern sheet. By having the dual pattern sheets work alternately, not only can the speed and flicker requirements be halved, but the quality of the components and technical requirements can be better guaranteed. Moreover, it can double the pattern effect, thereby achieving a longer dynamic effect. This device has the advantages of long service life, good dynamic projection effect and long duration.

[0077] 2. The first pattern piece 33 and the second pattern piece 34 are driven by a motor to rotate the pattern piece. By controlling the start and stop of the motor in conjunction with the strobe of the first light source 31 and the second light source 32, the jamming and positional displacement problems of traditional intermittent motion mechanical structures can be effectively solved.

[0078] Example 2

[0079] like Figure 6-9 As shown, this utility model provides one type of dynamic projection lamp.

[0080] The dynamic projection lamp includes a housing 1 and a projection device 3 mounted on the housing 1. The projection device 3 is the dual-pattern projection device 3 shown in Embodiment 1.

[0081] In this embodiment, the dynamic projection lamp also includes a heat dissipation device 2, which includes a heat-conducting element 21 and a heat sink 22. One end of the heat-conducting element 21 is connected to the first light source part 31 and the second light source part 32, and the other end is connected to the heat sink 22.

[0082] In this embodiment, the heat dissipation device 2 may also include a cooling fan disposed on the side or rear of the heat sink 22.

[0083] Preferably, the radiator 22 in this embodiment is a finned radiator, and there are multiple cooling fans arranged on the side of the radiator 22.

[0084] In this embodiment, the outer shell 1 includes a front shell 11 and a rear shell 12. The front shell 11 is disposed on the outer periphery of the inner shell 37, and the imaging unit 36 ​​is embedded in the front shell 11. The rear shell 12 is disposed behind the front shell 11, and the heat sink 22 and the cooling fan are installed inside the rear shell 12. One end of the heat-conducting element 21 extends into the interior of the heat sink 22, and the other end passes through the front shell 11 from the rear shell 12 and is attached to the inner shell 37. The first mounting plate of the first light source unit 31 and the second mounting plate of the second light source unit 32 are attached to the heat-conducting element 21. Thus, the heat generated by the first light source unit 31, the second light source unit 32, and other components and transferred to the inner shell 37 can be quickly conducted from the heat-conducting element 21 to the heat sink 22. With the help of the cooling fan, rapid cooling is achieved, resulting in a good heat dissipation effect.

[0085] In this embodiment, the dynamic projection lamp also includes a mounting bracket 4, which is rotatably mounted on the front shell 11 or the rear shell 12 and has mounting holes or hanging holes.

[0086] In this embodiment, the dynamic projection lamp also includes an electronic control device disposed on the surface or inside the housing 1. The electronic control device includes at least a control circuit board electrically connected to the light source, heat sink 22, cooling fan and various driving components.

[0087] In this embodiment, the electronic control device may also include a positioning sensing mechanism, which may be a combination structure of a sensor and a sensing sheet. The first pattern sheet 33, the second pattern sheet 34 and the reflective part 35 may all be equipped with a positioning sensing mechanism, so as to cooperate with the electronic control device to realize stopping and starting at a specified angle, thereby cooperating with the starting and stopping of the light source.

[0088] Example 3

[0089] like Figure 10-12 As shown, this utility model provides another type of dual-pattern projection device 3. The structure of this dual-pattern projection device 3 is basically the same as that of embodiment 1, except that: (1) the structure of the reflective part 35 is different; (2) the structure of the inner shell 37 is different.

[0090] like Figure 10-12 As shown, the reflector 35 in this embodiment also includes a transmission assembly 355. The input end of the transmission assembly 355 is poweredly connected to the third driving member 352, and the output end is drivenly connected to the first connector 353 or the second connector 354. The third driving member 352 can be fixedly installed on the inner shell 37 by a fixing bracket.

[0091] Preferably, the transmission assembly 355 in this embodiment includes a first transmission gear 355a, a second transmission gear 355b, and a third transmission gear 355c. The first transmission gear 355a is fitted onto the driving end of the third driving member 352, the third transmission gear 355c is fitted onto the outer periphery of the first connector 353 or the second connector 354, and the second transmission gear 355b is connected to the first transmission gear 355a and the third transmission gear 355c respectively.

[0092] As a further preferred embodiment, the output end of the transmission component 355 is connected to the first connector 353 in a transmission connection, that is, the third transmission gear 355c is fitted onto the outer periphery of the first connector 353.

[0093] In this embodiment, the reflective part 35 further includes a first bearing seat 356 and a second bearing seat 357, which are mounted on the inner shell 37. The end of the first connector 353 furthest from the reflective lens 351 is rotatably mounted on the first bearing seat 356, and the end of the second connector 354 furthest from the reflective lens 351 is rotatably mounted on the second bearing seat 357. This facilitates smooth high-speed rotation of the reflective lens 351.

[0094] In this embodiment, the shape of the inner shell 37 is different from that of Embodiment 1. The outer periphery of the inner shell 37 in this embodiment is provided with rounded corners.

[0095] Example 4

[0096] like Figure 13-16 As shown, this utility model provides another type of dynamic projection lamp.

[0097] The structure of the dynamic projection lamp is basically the same as that of Embodiment 1, except that: (1) the projection device 3 is the dual pattern projection device shown in Embodiment 3; (2) the structure of the outer shell 1 is different; and (3) the structure of the heat dissipation device 2 is different.

[0098] In this embodiment, the outer shell 1 includes a front shell 11 and a rear shell 12. The front shell 11 is a lens housing, and the imaging unit 36 ​​is embedded in the front shell 11. The rear shell 12 is located behind the front shell 11, and all other components of the dual-pattern projection device 3 except for the imaging unit 36 ​​and the heat dissipation device 2 are located within the space enclosed by the rear shell 12.

[0099] In this embodiment, the heat dissipation device 2 includes only one cooling fan, and the cooling fan is located behind the heat sink 22.

[0100] Example 5

[0101] like Figure 17 As shown, this utility model provides a first patterned sheet 331 and a second patterned sheet 341 in one embodiment.

[0102] like Figure 17 The diagram shows the structure of the first pattern piece 331 and the second pattern piece 341 in one embodiment of actual use. The first light-transmitting hole 331a on the first pattern piece 331 is provided with a set of numerical patterns (including 8 numbers), and the second light-transmitting hole 341a on the second pattern piece 341 is provided with another set of numerical patterns (including 8 numbers). By controlling the alternating playback, a continuous dynamic rotating numerical pattern can be formed. Under the same conditions, traditional lamps can only play 8 numbers, while this invention can play 16 numbers. Therefore, the dynamic projection lamp of this invention has the advantage of doubling the pattern effect and achieving a longer-lasting dynamic effect.

[0103] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A dual pattern sheet projection apparatus, characterized by, The system includes a first light source (31), a second light source (32), a first pattern sheet (33), a second pattern sheet (34), a reflective part (35), and an imaging part (36). The first pattern sheet (33) cooperates with the first light source (31), the second pattern sheet (34) cooperates with the second light source (32), the reflective part (35) is disposed between the first pattern sheet (33) and the second pattern sheet (34) and cooperates with the first pattern sheet (33) and the second pattern sheet (34), and the imaging part (36) cooperates with the reflective part (35). The first pattern sheet (33) includes a first pattern sheet (331) with a plurality of first light-transmitting holes (331a), and the second pattern sheet (34) includes a second pattern sheet (341) with a plurality of second light-transmitting holes (341a). The first incident light path generated by the first light source unit (31) can pass through one of the first light-transmitting holes (331a) of the first pattern piece (331) and be reflected by the reflection unit (35) to obtain the first reflected light path, and finally be projected out from the imaging unit (36). The second incident light path generated by the second light source unit (32) can pass through one of the second light-transmitting holes (341a) of the second pattern sheet (341) and obtain the second reflected light path through the reflection unit (35), and finally be projected out from the imaging unit (36).

2. The dual-pattern slice projection apparatus of claim 1, wherein, The first reflected light path and the second reflected light path are generated alternately and projected alternately from the imaging unit (36).

3. The dual-patterned sheet projection apparatus of claim 1, wherein, The first pattern piece (331) portion (33) further includes a first drive member (332), which is poweredly connected to the first pattern piece (331).

4. The dual-patterned sheet projection apparatus of claim 1, wherein, The second pattern piece (34) further includes a second drive member (342), which is poweredly connected to the second pattern piece (341).

5. The dual-patterned sheet projection apparatus of claim 1, wherein, The reflective part (35) includes a reflective lens (351) and a third driving member (352), the third driving member (352) being dynamically connected to the reflective lens (351).

6. The dual-patterned sheet projection apparatus of claim 5, wherein, The reflective part (35) further includes a first connector (353) and a second connector (354), the first connector (353) and the second connector (354) are respectively installed at both ends of the reflective lens (351), and the third driving member (352) is poweredly connected to the first connector (353) or the second connector (354).

7. The dual-patterned sheet projection apparatus of claim 6, wherein, The reflector (35) further includes a transmission assembly (355), the input end of which is poweredly connected to the third drive member (352), and the output end is drivenly connected to the first connector (353) or the second connector (354).

8. The dual-patterned sheet projection apparatus of claim 7, wherein, The transmission assembly (355) includes a first transmission gear (355a), a second transmission gear (355b), and a third transmission gear (355c). The first transmission gear (355a) is fitted onto the drive end of the third drive member (352). The third transmission gear (355c) is fitted onto the outer periphery of the first connector (353) or the second connector (354). The second transmission gear (355b) is connected to the first transmission gear (355a) and the third transmission gear (355c) respectively.

9. A dynamic projection lamp comprising a housing (1) and a projection device (3) mounted to the housing (1), characterized in that The projection device (3) is the dual-pattern projection device according to any one of claims 1-8.

10. The dynamic projection lamp of claim 9, wherein, It also includes a heat dissipation device (2), which includes a heat-conducting element (21) and a heat sink (22). One end of the heat-conducting element (21) is connected to the first light source part (31) and the second light source part (32), and the other end is connected to the heat sink (22).

Images