CN203773165U - Kaleidoscope projection device - Google Patents

Abstract

The utility model provides a kaleidoscope projection arrangement, including a body, holding in a light source of body, set up a catadioptric optical assembly and a projection subassembly on the body. The catadioptric optical assembly includes a barrel and a lens disposed at a first end of the barrel. The projection assembly is positioned between the body and a second end of the lens cone and comprises a pattern sheet and a diffusion sheet, and the diffusion sheet is closer to the light source than the pattern sheet. After passing through the diffusion sheet and the pattern sheet, light emitted by the light source enters the lens barrel from the second end of the lens barrel, passes through the catadioptric optical assembly and the lens, and is emitted out of the kaleidoscope projection device from the first end of the lens barrel. The utility model discloses by the setting of diffusion piece, the light that can the homogenization light source sent, and then make the luminance of projection to external kaleidoscope pattern even.

Description

Kaleidoscope projection device

technical field

The utility model relates to the technical field of kaleidoscopes, in particular to the technical field of projection kaleidoscopes.

Background technique

The kaleidoscope is a time-honored optical toy that captivates with its varied images. Generally speaking, the observer can only observe the image formed in the kaleidoscope through the eyepiece of the traditional kaleidoscope, and the image is small in size and limited to be displayed in the kaleidoscope. US Patent No. 4,077,706 discloses a projection kaleidoscope, which projects images displayed in the kaleidoscope to the outside of the kaleidoscope. However, such as only projecting the image in the kaleidoscope to the outside of the kaleidoscope needs to be improved.

Figure 1 is a schematic diagram of images displayed in a general kaleidoscope. When such an image is projected outside the kaleidoscope, images with different brightness will be observed in practice, and relatively low brightness will occur at multiple junctions 1 of the imaging. Perhaps, ordinary people would think of using a higher-brightness light source to solve the above-mentioned low-brightness problem, but a higher-brightness light source cannot effectively improve the low brightness of junction 1, and a higher-brightness light source will consume more energy. The lack of performance does not meet the energy-saving design.

Utility model content

One of the technical problems to be solved by the utility model is to provide a kaleidoscope projection device for the above-mentioned deficiencies in the prior art, which includes a light source and a diffusion sheet, and the diffusion sheet is used to process the light emitted by the light source, so as to improve projection The low brightness disadvantage of the junction when kaleidoscope.

One of the technical problems to be solved by the utility model is to provide a kaleidoscope projection device, which includes a detachable and combined structure, to facilitate users to change the kaleidoscope pattern to be projected.

One of the technical problems to be solved by the utility model is to provide a kaleidoscope projection device, which includes rotatable parts, and the user only needs to rotate the partial structure of the kaleidoscope projection device to rotate the device. The gobo inside increases the operability of the kaleidoscope projection device.

The technical solution adopted by the utility model to solve the technical problem is to provide a projecting kaleidoscope, which includes: a body; a light source accommodated in the body; a catadioptric optical lens arranged on the body A component, the catadioptric optical component includes a lens barrel and a lens, and the lens is disposed at a first end of the lens barrel; and a projection component is located between the body and a second end of the lens barrel, the The projection assembly includes a pattern sheet and a diffusion sheet, the diffusion sheet is closer to the light source than the pattern sheet; wherein, the light emitted by the light source passes through the diffusion sheet and the pattern sheet, and enters from the second end of the lens barrel The light is emitted from the first end of the lens barrel to the outside of the kaleidoscope projection device through the catadioptric optical assembly and the lens inside the lens barrel.

Preferably, the projection assembly further includes a rotating member, a light-transmitting sheet and an annular spacer, and the socket part of the rotating member and the body matches and fixes the diffuser, the annular spacer and the light-transmitting sheet , the diffuser, the annular spacer and the light-transmitting sheet jointly define an accommodating space, the pattern plate is movably and replaceably placed in the accommodating space, and the rotating member can be relative to the catadioptric optical assembly or the main body while rotating.

Preferably, the size of the pattern sheet is smaller than that of the diffusion sheet or the transparent sheet, and the rotating member is manual or electric.

Preferably, the transparent sheet includes a pattern, and the pattern is distributed on the entire or part of the transparent sheet.

Preferably, the projection assembly further includes a light-transmitting box arranged on the diffusion sheet, the light-transmitting box defines an accommodating space, and the pattern sheet is movably and replaceably placed in the accommodating space of the light-transmitting box In space, the light-transmitting box can be rotated relative to the catadioptric optical assembly or the body; or the projection assembly further includes a light-transmitting box, and the light-transmitting box uses the diffuser as a first cover and defines a container The pattern piece is movably and replaceably placed in the accommodating space of the light-transmitting box, and the light-transmitting box can rotate relative to the catadioptric optical assembly or the body.

Preferably, the size of the pattern sheet is smaller than that of the diffusion sheet or the light-transmitting box, and the light-transmitting box is manual or electric.

Preferably, the light-transmitting box includes a second cover defining the accommodating space together with the first cover, the second cover includes a pattern, and the pattern is distributed on the entire second cover or part of it. on the second cover.

Preferably, the kaleidoscope projection device further includes a reflective cover disposed around the light source and in the main body, wherein the reflective cover is located between the light source and the diffuser.

Preferably, the catadioptric optical assembly further includes a plurality of reflective mirrors forming a triangle and a plurality of fixing pieces for fixing the reflective mirrors.

Preferably, the kaleidoscope projection device further includes a primary battery or a secondary battery disposed in the body.

Preferably, the kaleidoscope projection device further includes a power connection port provided on the body, and the power connection port is an AC or DC connection port.

Preferably, the kaleidoscope projection device is wired or wirelessly powered.

The utility model also provides a kaleidoscope projection device, which includes: a body; a light source accommodated in the body; a lens barrel arranged on the body, a first end of the lens barrel is provided with a lens, the The lens barrel is a part of a catadioptric optical assembly; and a projection assembly located between the body and a second end of the lens barrel, wherein the projection assembly includes a pattern sheet and a diffusion sheet larger in size than the pattern sheet After the light emitted by the light source passes through the diffusion sheet, the pattern sheet, the catadioptric optical assembly and the lens in sequence, the light is emitted from the first end of the lens barrel to the outside of the kaleidoscope projection device, and the projection assembly can be relatively Rotate on the body and the lens barrel.

Preferably, the projection assembly is manually rotatable, and the projection assembly further includes: a rotating member sleeved on a first end of the body, and the rotating member is rotatably disposed on the second end of the lens barrel and the first end of the body; and a light-transmitting sheet and the diffusion sheet fixed between the rotating member and the first end of the body, the diffusion sheet and the light-transmitting sheet define an accommodating space , the pattern piece is movably and replaceably placed in the accommodating space.

Preferably, the transparent sheet includes a pattern, and the pattern is distributed on the entire or part of the transparent sheet.

Preferably, the kaleidoscope projection device also includes an electric assembly arranged between the body and the lens barrel, and the electric assembly is used to rotate the projection assembly; wherein, the projection assembly also includes two transparent covers and a A light-transmitting box composed of side walls, the side wall is located between the two light-transmitting covers, and the pattern piece is movably and replaceably placed in the light-transmitting box; or the projection assembly also includes a light-transmitting A light-transmitting box composed of the cover, the diffusion sheet and a side wall, the side wall is located between the light-transmission cover and the diffusion sheet.

Preferably, the electric assembly includes: a driving member accommodated in the body; a rotating member driven by the driving member to rotate, the rotating member contacts the side wall of the light-transmitting box, and the rotating member drive the light-transmitting box to rotate; and a supporting member located between the lens barrel and the body, the light-transmitting box is rotatably arranged on the supporting member.

Preferably, the kaleidoscope projection device further includes a power connection port provided on the body, and the power connection port is an AC or DC connection port.

Preferably, the kaleidoscope projection device further includes a primary battery or a secondary battery disposed in the body.

The utility model processes the light emitted by the light source by arranging a diffuser to improve the low brightness defect at the junction when projecting the kaleidoscope, which not only saves energy, but also optimizes the quality of the projected pattern. Moreover, the utility model can arrange the diffusion sheet at the place closest to the light source, so that the light can be uniformed before passing through the pattern sheet. Compared with setting the diffusion sheet at other positions, this effect can improve the projection of the kaleidoscope. The disadvantage of low brightness. Secondly, the utility model can facilitate the user to change the kaleidoscope pattern to be projected through the setting of the detachable combined structure. In addition, through the arrangement of the rotating parts, the utility model only needs to rotate the local structure of the kaleidoscope projection device to rotate the pattern sheet in the device, thereby increasing the operability of the kaleidoscope projection device.

In order to further understand the technology, means and effects of the utility model to achieve the intended purpose, please refer to the following detailed description and accompanying drawings of the utility model. The purpose, features or characteristics of the present utility model should be able to obtain an in-depth and specific understanding. However, the accompanying drawings are only for reference and illustration, and are not intended to limit the present utility model.

Description of drawings

Figure 1 is a schematic diagram of images displayed in a general kaleidoscope.

FIG. 2 is a schematic view of the appearance of the embodiment of the first kaleidoscope projection device of the present invention.

FIG. 3 is an exploded schematic diagram of an embodiment of the first kaleidoscope projection device of the present invention.

FIG. 4 is a schematic cross-sectional view of an embodiment of the first kaleidoscope projection device of the present invention.

FIG. 5 is a schematic view of the appearance of the embodiment of the second kaleidoscope projection device of the present invention.

Fig. 6 is a perspective view of the projection assembly and the electric parts of the second embodiment of the kaleidoscope projection device of the present invention.

Fig. 7 is a perspective view from another angle of the projection assembly and the electric part of the second embodiment of the kaleidoscope projection device of the present invention.

Fig. 8 is a partial perspective view of the projection assembly and the electric part of the second embodiment of the kaleidoscope projection device of the present invention.

Detailed ways

The kaleidoscope projection device of the present invention will be equipped with a power supply to provide power or rotation power, and the form of power supply can be wired or wirelessly connected to the kaleidoscope projection device from an external power source. When the wired power supply is used, the kaleidoscope projection device may be provided with a USB connection port or other forms of DC power ports, AC power connection ports, and the like. Optionally, the form of power supply may be a primary or secondary battery, such as a dry battery or a storage battery, provided in the kaleidoscope projection device. Wireless power, for example but not limited, such as inductive power supply, magnetic power supply, etc.

FIG. 2 is a schematic view of the appearance of the embodiment of the first kaleidoscope projection device of the present invention. Referring to Fig. 2, the kaleidoscope projection device 2 comprises a body 12, a rotating member 32 and a lens barrel 52, the first end 521 of the lens barrel 52 is provided with a lens 54 (lens), the first end 121 of the body 12 and the lens barrel 52 The second end 523 of the second end 523 is matched and fixed in a detachable combination, and the rotating member 32 is arranged between the two. In the first embodiment, part of the surface of the rotating member 32 is exposed outside the lens barrel 52 and the main body 12 , so that the user can manually operate the rotating member 32 .

FIG. 3 is an exploded schematic diagram of an embodiment of the first kaleidoscope projection device of the present invention. Referring to FIG. 3 , a catadioptric optical assembly 50 is fixed on the body 12 , and includes a lens barrel 52 , a lens 54 , a mirror 56 and a fixing member 58 . In the first embodiment, a lens 54, a plurality of reflecting mirrors 56 and a plurality of fixing parts 58 are arranged in the lens barrel 52, and a three-dimensional triangle is formed by at least two reflecting mirrors 56, and the fixing parts 58 can be respectively arranged on the reflecting mirrors 56 The first end 561 and the second end 563 of the formed triangle fix the first end 561 of the reflector 56 to the first end 521 of the lens barrel 52 through the engagement of the fixing member 58, and the second end 563 of the reflector 56 is fixed At the second end 523 close to the lens barrel 52 , the fixing member 58 can be fixed in the lens barrel 52 in an appropriate way such as engaging or fitting. A notch 525 is formed on the second end 523 of the lens barrel 52 to expose part of the surface of the rotating member 32 .

Next, in the first embodiment, a projection assembly 30 is located between the main body 12 and the catadioptric optical assembly 50, and the projection assembly 30 includes a rotating member 32, a diffusion sheet 34, a pattern sheet 36, a light-transmitting sheet 38 and a spacer 40 . Moreover, the diffuser 34 , pattern sheet 36 , light-transmitting sheet 38 and spacer 40 are arranged in the rotating member 32 , and their combination relationship will be described in detail in the following figures, and the rotating member 32 can be sleeved on the first end 121 of the main body 12 The socket part 125.

Furthermore, a light source 14 is accommodated in the body 12, and the light source 14 includes a light emitting diode and related circuits, and a reflective cover 16 can be arranged around the light emitting diode. The light emitted by the light source 14 sequentially passes through the diffusion sheet 34 , the pattern sheet 36 , the catadioptric optical assembly 50 and the lens 54 , and then exits the catadioptric optical assembly 50 and the lens 54 to the outside of the kaleidoscope projection device 2 . Since the kaleidoscope projection device 2 is provided with a light source 14, the main body 12 may include a power switch 18 to control the light source 14 or other structures. Secondly, the body 12 includes a base plate 19 to carry the light source 14, etc., the base plate 19 is located close to the second end 123 of the body 12, and the first end 121 of the body 12 is provided with the second end 523 of the lens barrel 52. structure.

FIG. 4 is a schematic cross-sectional view of an embodiment of the first kaleidoscope projection device of the present invention. Please refer to FIGS. 2, 3, and 4 at the same time. In the first embodiment, the rotating member 32 of the projection assembly 30 is a ring-shaped member, and its inner wall is provided with a number of protrusions to place the diffusion sheet 34, the light-transmitting sheet 38 and the spacer 40. , through the socketing of the rotating member 32 and the socket portion 125 of the main body 12 , the diffusion sheet 34 , the light-transmitting sheet 38 and the spacer 40 can be fixed. The manual rotating member 32 can rotate relative to the catadioptric optical assembly 50 , the lens barrel 52 or the body 12 . The annular spacer 40 is located between the diffusion sheet 34 and the transparent sheet 38 to define an accommodating space 325 , but the present invention is not limited thereto, and the inner wall protrusion of the rotating member 32 itself can also be used. Moreover, the pattern piece 36 is movably and replaceably placed in the accommodating space 325 . Therefore, when the user firmly holds the body 12 or the lens barrel 52 with one hand, the user can rotate the rotating member 32 with the other hand. At this time, the pattern sheet 36 in the accommodating space 325 can rotate with the rotation or move under force. The light emitted by the light source 14 passes through the rotated pattern sheet 36 to generate changing patterns. Moreover, since the body 12 and the lens barrel 52 are detachable, the user can easily take out the rotating member 32 and replace the pattern sheet 36 therein, so that the purpose of the kaleidoscope projection device of the present invention can replace the pattern sheet 36.

Also, the light-transmitting sheet 38 can also include a pattern, which is distributed on the entire light-transmitting sheet 38 or its local area. In this way, through the overlapping combination of the patterns of the light-transmitting sheet 38 and the pattern sheet 36, the collocation The relative movement of the two during rotation can form a variety of changing patterns. In the first embodiment, the light-transmitting sheet 38 and the pattern sheet 36 are circular sheet-shaped positive film patterns, and the size of the light-transmitting sheet 38 is larger than the pattern sheet 36, but the shape of the light-transmitting sheet 38 and the pattern sheet 36 in the utility model is the same as The size relationship is not limited thereto. When the rotating member 32 rotates, the light-transmitting sheet 38 can be consistent with the rotating member 32 because it is fixed on the rotating member 32; The movement of the sheet 36 may not coincide with that of the rotating member 32, thus increasing the variety of pattern changes. It can be understood that a plurality of pattern sheets 36 can be accommodated in the accommodation space 325 , which can also increase the variety of pattern changes.

It can be understood that the light emitted by the light source 14 can pass through the diffusion sheet 34, the pattern sheet 36 or the light-transmitting sheet 38 and then arrive outside the kaleidoscope projection device to project the pattern sheet 36. Therefore, the diffusion sheet 34, the pattern sheet 36 or the light-transmitting sheet 38 are all transparent. Secondly, the diffuser 34 is arranged at a position adjacent to the light source 14, which diffuses the light emitted by the light source 14, increases the uniformity of light passing through the pattern sheet 36 and the light-transmitting sheet 38, and then increases the reflective refraction passing through the lens barrel 52. The light uniformity of the optical component 50 improves the projection effect of the traditional projection kaleidoscope, makes the brightness of the intersection of the projected pattern and other positions uniform, and optimizes the quality of projection. In the first embodiment, the diffuser 34 , for example but not limited to, can be formed on a transparent substrate such as PET by coating or rolling to make an irregular structure on the surface.

It should be noted that those in the know may think that the disadvantage of low brightness at the junction when projecting a kaleidoscope can be improved by increasing the brightness of the light source. However, in terms of the manufacturing cost and usage cost of the kaleidoscope projection device, it is not economical to use a high-power light source to produce high brightness; and in practical applications, it has also been observed that the use of a high-brightness light source cannot effectively improve the projection The low-intensity junction of the pattern. Therefore, the utility model adopts the setting of the diffusion sheet, which not only takes into account energy saving, but also optimizes the quality of the projected pattern. In addition, the diffuser is placed closest to the light source, so that the light is homogenized before passing through the gobo. This effect can improve the low brightness at the junction when projecting a kaleidoscope compared to other positions. Moreover, since the size of the handheld projection device must conform to the convenience of the user's hand-holding, the size of the kaleidoscope projection device results in very limited space for installing components inside. location, ease of assembly, and more. Therefore, although the present invention adopts the method of adding components, it takes into account the installation, position and convenience of assembly of the diffuser, and achieves the purpose of optimizing the quality of the projected pattern.

On the other hand, in the limited space 127 provided by the main body 12 , a reflective cover 16 may also be provided around the LEDs of the light source 14 to increase the amount of light passing through the diffuser 34 . Secondly, in order to provide the power required by the light source 14, power supply components such as primary or secondary batteries (not shown in the figure) can also be placed in the space 127 .

FIG. 5 is a schematic view of the appearance of the embodiment of the second kaleidoscope projection device of the present invention. The kaleidoscope projection device includes a lens barrel 72 , a projection assembly 60 , a motor 62 and a body 42 , wherein the projection assembly 60 and the motor 62 are located between the lens barrel 72 and the body 42 . In the second embodiment, the lens barrel 72 is fixed on the electric assembly 62 , the electric assembly 62 is fixed on the main body 42 , and the projection assembly 60 is detachably and movably fixed on the electric assembly 62 . Secondly, a power switch 48 is provided on the main body 42 , turning on the power switch 48 can make the electric component 62 rotate, and then rotate the projection component 60 .

Fig. 6 is a three-dimensional view of the projection assembly and the electric part of the second embodiment of the kaleidoscope projection device of the present invention, and Fig. 7 is another perspective view of the projection assembly and the electric part of the embodiment of the second kaleidoscope projection device of the present invention A three-dimensional view, FIG. 8 is a partial three-dimensional view of the projection assembly and the electric part of the second embodiment of the kaleidoscope projection device of the present invention. 5, 6, 7, 8, the projection assembly 60 includes a light-transmitting box, which includes first and second covers 603, 601 and side walls 605, and the first and second covers 603, 601 and side walls 605 jointly define an accommodating space 607 . In the second embodiment, the pattern sheet 66, the first and second covers 603, 601 are all circular and light-transmittable, and the radius of the first and second covers 603, 601 is larger than that of the pattern sheet 66, so the patterns The piece 66 is movably and replaceably placed in the accommodating space 607 . In addition, when the first cover 603 is located on a side adjacent to the light source (not shown in the figure) in the main body 42, the first cover 603 can be a diffusion sheet, so that the light emitted by the light source in the main body 42 passes through the first Cover 603 after homogenization. Another option is that a diffusion sheet (not drawn on the figure) and pattern sheet 66 are placed in the accommodating space 607, wherein the size of the diffusion sheet is equivalent to that of the first cover 603, so it is placed in the accommodating space 607 The diffuser will not move in the light box. Optionally, a diffusion sheet (not shown in the figure) is disposed on the body 42 and interposed between the light-transmitting box and the light source. Moreover, the second cover 601 can be like the light-transmitting sheet of the first embodiment, which can not only transmit light, but also include light-transmitting patterns distributed on the entire second cover 601 or a partial area thereof.

Secondly, the electric assembly 62 includes a driving part 622, a rotating part 624 and a supporting part 626, wherein the driving part 622, the rotating part 624 and part of the supporting part 626 are accommodated in the body 42, and the supporting part 626 can be connected to the body 42 cover. Moreover, the driving member 622 , such as a motor, can drive the rotating member 624 to rotate, and the side wall 605 of the projection assembly 60 that is in contact with the rotating member 624 can rotate accordingly, thereby driving the projection assembly 60 to rotate. In addition, the projection assembly 60 of the light-transmissive box is rotatably disposed on the supporting member 626 , and the supporting member 626 is provided with cover notches 621 , 623 . The positions of the cover notches 621 and 623 correspond to the light sources in the main body 42, so that the light emitted by the light source in the main body 42 passes through the cover notch 623, the diffusion sheet (not shown in the figure), the pattern sheet 66, and the cover notch 621 in sequence. and the catadioptric mirror in the lens barrel 72 , the light is emitted from the lens 64 of the catadioptric mirror to the outside of the kaleidoscope projection device 3 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the scope of claims of the present utility model. Therefore, all other equivalent changes or modifications that do not deviate from the spirit disclosed in the present utility model shall be included in the scope of the present utility model.

Claims (19)

1. A kaleidoscope projection device comprising:

a body;

a light source accommodated in the body;

a catadioptric optical assembly disposed on the body, the catadioptric optical assembly including a barrel and a lens disposed at a first end of the barrel; and

a projection assembly located between the body and a second end of the lens barrel, the projection assembly including a pattern sheet and a diffusion sheet, the diffusion sheet being closer to the light source than the pattern sheet;

after passing through the diffusion sheet and the pattern sheet, the light emitted by the light source enters the lens barrel from the second end of the lens barrel, passes through the catadioptric optical assembly and the lens, and is emitted out of the kaleidoscope projection device from the first end of the lens barrel.

2. The kaleidoscope projection device of claim 1, wherein the projection assembly further comprises a rotating member, a light-transmitting plate and an annular spacer, the rotating member and a sleeving part of the body are matched and fixed with the diffusion plate, the annular spacer and the light-transmitting plate, the diffusion plate, the annular spacer and the light-transmitting plate jointly define a containing space, the pattern plate is movably and replaceably placed in the containing space, and the rotating member can rotate relative to the catadioptric optical assembly or the body.

3. The kaleidoscope projection device of claim 2 wherein the pattern piece is smaller in size than the diffusion piece or the light transmission piece, and the rotating member is manual or electric.

4. The kaleidoscope projection device of claim 2 wherein the light transmissive sheet comprises a pattern which is distributed over all or part of the light transmissive sheet.

5. The kaleidoscope projection device of claim 1,

the projection assembly also comprises a light-transmitting box arranged on the diffusion sheet, the light-transmitting box defines an accommodating space, the pattern sheet is movably and replaceably placed in the accommodating space of the light-transmitting box, and the light-transmitting box can rotate relative to the catadioptric optical assembly or the body; or

The projection assembly also comprises a light-transmitting box, the light-transmitting box takes the diffusion sheet as a first cover body and defines an accommodating space, the pattern sheet is movably and replaceably placed in the accommodating space of the light-transmitting box, and the light-transmitting box can rotate relative to the catadioptric optical assembly or the body.

6. The kaleidoscope projection device of claim 5 wherein the pattern piece is smaller in size than the diffuser or the light transmissive box, the light transmissive box being manually or electrically operated.

7. The kaleidoscope projection device of claim 5 wherein the light-transmitting box comprises a second cover defining the receiving space together with the first cover, the second cover comprising a pattern distributed over the second cover or a portion of the second cover.

8. The kaleidoscope projection device of claim 1, 2, 3, 4, 5, 6 or 7 further comprising a reflective cover disposed around the light source and in the body, wherein the reflective cover is disposed between the light source and the diffuser.

9. The kaleidoscope projection device of claim 1, 2, 3, 4, 5, 6 or 7 wherein the catadioptric optical assembly further comprises a plurality of mirrors forming a triangle and a plurality of fixtures for holding the mirrors.

10. A kaleidoscope projection device as claimed in claim 1, 2, 3, 4, 5, 6 or 7 further comprising a primary or secondary battery provided in the body.

11. The kaleidoscope projection device of claim 1, 2, 3, 4, 5, 6 or 7 further comprising a power connection port disposed on the body, wherein the power connection port is an ac or dc electrical connection port.

12. A kaleidoscope projection device as claimed in claim 1, 2, 3, 4, 5, 6 or 7 which is wired or wirelessly powered.

13. A kaleidoscope projection device comprising:

a body;

a light source accommodated in the body;

a lens cone arranged on the body, wherein a first end of the lens cone is provided with a lens, and the lens cone is a part of a catadioptric optical component; and

a projection assembly between the body and the second end of the lens cone, wherein the projection assembly comprises a pattern sheet and a diffusion sheet with a size larger than that of the pattern sheet, light emitted by the light source passes through the diffusion sheet, the pattern sheet, the catadioptric optical assembly and the lens in sequence, then the light is emitted out of the kaleidoscope projection device from the first end of the lens cone, and the projection assembly can rotate relative to the body and the lens cone.

14. The kaleidoscope projection device of claim 13 wherein the projection assembly is manually rotatable, the projection assembly further comprising:

a rotating member sleeved with a first end of the body, the rotating member being rotatably disposed between the second end of the lens barrel and the first end of the body; and

the light-transmitting piece and the diffusion piece are fixed between the rotating piece and the first end of the body, the diffusion piece and the light-transmitting piece define an accommodating space, and the pattern piece is movably and replaceably placed in the accommodating space.

15. The kaleidoscope projection device of claim 14 wherein the light transmissive sheet comprises a pattern which is distributed over all or part of the light transmissive sheet.

16. The kaleidoscope projection device of claim 13 further comprising a motorized assembly disposed between the body and the barrel, the motorized assembly configured to rotate the projection assembly; wherein,

the projection assembly also comprises a light-transmitting box consisting of two light-transmitting cover bodies and a side wall, wherein the side wall is positioned between the two light-transmitting cover bodies, and the pattern sheet is movably and replaceably placed in the light-transmitting box; or

The projection assembly also comprises a light-transmitting box consisting of a light-transmitting cover body, the diffusion sheet and a side wall, wherein the side wall is positioned between the light-transmitting cover body and the diffusion sheet.

17. A kaleidoscope projection device as claimed in claim 16 wherein the motorised component comprises:

a driving member accommodated in the body;

the rotating part is driven by the driving part to rotate, contacts the side wall of the light-transmitting box, and drives the light-transmitting box to rotate; and

a support part between the lens cone and the body, and the light-transmitting box is rotatably arranged on the support part.

18. A kaleidoscope projection device as claimed in claim 13, 14, 15, 16 or 17 further comprising a power connection port provided on the body, the power connection port being an ac or dc electrical connection port.

19. A kaleidoscope projection device as claimed in claim 13, 14, 15, 16 or 17 further comprising a primary or secondary battery disposed in the body.