GB2622907A

GB2622907A - Projecting apparatus for generating light effect of galactic starry sky

Info

Publication number: GB2622907A
Application number: GB2305238.4A
Authority: GB
Inventors: Zheng Huazhu; Lu Yunyun; Zheng Caijian; Ouyang Wenzhen
Original assignee: Shenzhen Bolong Technology Co Ltd
Current assignee: Shenzhen Bolong Technology Co Ltd
Priority date: 2022-09-30
Filing date: 2023-04-11
Publication date: 2024-04-03
Also published as: JP3242042U; GB202305238D0; DE202023000739U1

Abstract

A projecting apparatus for generating a light effect of a galactic starry sky comprising in arrangement order: at least one incoherent light source 21, at least one condensing lens 22, a film sheet 51, and an imaging assembly having at least 3 lenses: an imaging lens 41, an adjusting lens 42 and a wide-angle lens 43 arranged sequentially (fig 1). All the features being assembled coaxially (fig 1). A film assembly may contain an electronic label 32 e.g. RFID tag that is read and subsequently a pre-stored audio track corresponding to a particular starry pattern is played via a speaker 33. The film assembly may also contain a rotating plate 55. Preferably, there is a laser assembly producing a coherent light source, and a diffraction medium wherein the diffraction medium rotates.

Description

PROJECTING APPARATUS FOR GENERATING LIGHT EFFECT OF GALACTIC

STARRY SKY

TECHNOLOGY FIELD

[0001] The utility model relates to the technical field of projection, and particularly to a projecting apparatus for generating a light effect of a galactic starry sky.

TECHNICAL BACKGROUND

[0002] A projecting lamp, also known as an imaging lamp, is an electrical device that can project an image or a word onto the ground or a wall. In daily life, the projecting lamp is used in many scenes, such as a stage, a bedroom, a vapor lamp and other places. However, since most scenes require presentation of a content of a pattern, a main R&D direction of a projecting lamp in the prior art is how to diversify the presentation of the pattern and ignore a specific effect of the pattern. Therefore, most of the projecting lamps in the prior art have low clarity or brightness of the projected pattern, which seriously affects a user's experience.

SUMMARY

[0003] A main objective of the utility model is to propose a projecting apparatus for generating a light effect of a galactic starry sky, which aims at improving practicality of the projecting apparatus.

[0004] To achieve the above objective, the utility model proposes a projecting apparatus for generating a light effect of a galactic starry sky, including: [0005] a light-emitting assembly including at least one first incoherent light source and at least one first condensing lens, the first condensing lens being arranged on an illuminating surface of the first incoherent light source; 100061 a film assembly including a film sheet provided with a galactic starry sky pattern, the film sheet being arranged on the other side of the first condensing lens relative to the first incoherent light source; and, [0007] an imaging assembly comprising at least three lenses, the three lenses being an imaging lens, an adjusting lens, and a wide-angle lens arranged sequentially in a projection direction of the film sheet, respectively.

[0008] Optionally, the projecting apparatus further includes a first housing and an audio assembly. The light-emitting assembly is arranged in the first housing. The first housing is opened and provided with a first mounting hole. The film assembly is arranged detachably in the first mounting hole. The audio assembly includes a control plate, an electronic label corresponding to the film sheet, an identifying module for identifying the electronic label and arranged on the control plate, a storage medium pre-stored with an audio corresponding to a galactic starry sky pattern and a speaker electrically connected to the control plate. The electronic label is arranged on the film assembly. The control plate, the storage medium, and the speaker are arranged within the first housing.

100091 Optionally, the electronic label is an RFID label. The identifying module includes an RFID chip.

100101 Optionally, the film assembly includes a second housing and a film tray. The film sheet is arranged on the film tray. The position of the second housing corresponding to the first mounting hole is fixed in the first housing. The film tray is inserted and provided in the first mounting hole and extends into the second housing.

[0011] Optionally, the control plate is fixed to the bottom of the second housing.

100121 Optionally, the film assembly further includes a rotating plate and a pressing plate. The rotating plate is opened and provided with a fixing groove. The film sheet and the pressing plate are fixedly arranged in the fixing groove. The rotating plate and the pressing plate are made of a transparent material. The film tray is opened and provided thereon with a mounting groove. The rotating plate is arranged in the mounting groove.

[0013] Optionally, the electronic label is provided as an annular shape. The rotating plate is opened and provided with an annular groove. The electronic label is arranged within the annular groove. The film sheet is positioned in the middle of the electronic label.

[0014] Optionally, the projecting apparatus further includes a first driving assembly arranged in the first housing. The first driving assembly includes a motor, a fixing plate, and a gear set. The fixing plate is fixed in the first housing. The motor is fixed on the fixing plate. The sidewall of the rotating plate is arranged in a tooth shape meshing with the gear set so that the motor drives the rotating plate via the gear set to rotate.

[0015] Optionally, the first driving assembly is arranged below the first incoherent light source. The first driving assembly further includes a rotating shaft of which one end is fixed on the fixing plate and of which the other end is fixed on the second housing. The gear set includes a driving gear arranged on a motor shaft, a first transmission gear sleeved on the rotating shaft and meshed with the driving gear, and a second transmission gear sleeved on the rotating shaft and fixedly connected to the first transmission gear. The second transmission gear is meshed with the rotating plate. The second transmission gear has the number of teeth less than that of the first transmission gear.

[0016] Optionally, the second housing includes an upper housing and a lower housing. The film tray and the lower housing are opened and provided with a position-avoidance groove for avoiding a position of the second transmission gear. The rotating shaft passes through the position-avoidance groove and is fixed on the upper housing.

[0017] The bottom wall of the mounting groove is provided with a limiting ring correspondingly provided with the annular groove.

[0018] Optionally, the imaging assembly includes a first sleeve tube. The imaging lens, the adjusting lens, and the wide-angle lens are arranged within the first sleeve tube.

[0019] The top of the second housing is provided with a fixing boss. The first sleeve tube is threadedly connected to the fixing boss to reciprocate the first sleeve tube relative to the fixing boss in an axial extension direction of the first sleeve tube.

[0020] Optionally, the light-emitting assembly further includes a second condensing lens. The second condensing lens is arranged on the other side of the first condensing lens relative to the first incoherent light source.

[0021] Optionally, the light-emitting assembly further includes a second sleeve tube. The second sleeve tube is sleeved on the first incoherent light source. The first condensing lens and the second condensing lens are arranged within the second sleeve tube.

[0022] Optionally, the first incoherent light source, the first condensing lens, the film sheet, and the imaging assembly are arranged coaxially.

100231 Optionally, the electronic label is an NFC label. The identifying module includes an NEC chip.

[0024] Optionally, the projecting apparatus further includes a laser assembly. The laser assembly includes at least one coherent light source, at least one diffraction medium, and a second driving assembly for driving the diffraction medium to rotate. The diffraction medium is arranged on the illuminating surface of the coherent light source 100251 For the technical solution of the utility model, the first condensing lens is arranged on the illuminating surface of the first incoherent light source. The film sheet is arranged on the other side of the first condensing lens relative to the first incoherent light source. The imaging assembly is arranged on the other side of the film sheet relative to the first condensing lens. The imaging assembly includes at least three lenses. The three lenses are the imaging lens, the adjusting lens, and the wide-angle lens arranged sequentially in the projection direction of the film sheet. It should be explained that the imaging lens is configured to collect light spots of an effective pattern passing through the film sheet, thereby fon-ning a real image pattern to be projected onto the adjusting lens. The adjusting lens is configured to reform, correct and project the real image onto the wide-angle lens. The wide-angle lens is configured to magnify and project the adjusted real image pattern onto a light shadow bearing surface, thereby exhibiting a clearly enlarged pattern effect on the light shadow bearing surface. The plurality of lens with different functions are arranged, thereby effectively improving clarity of the projected pattern of the projecting apparatus, and effectively improving practicality of the projecting apparatus.

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to explain embodiments of the utility model or the technical solutions in the prior art more clearly, the following briefly introduces the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some of the embodiments of the utility model. The person skilled in the art may obtain other drawings based on structures shown in these drawings without creative labor. 100271 Fig. 1 is a schematic structural diagram of an embodiment of a projecting apparatus of the utility model [0028] Fig. 2 is a schematic structural diagram of another embodiment of a projecting apparatus of the utility model.

100291 Fig. 3 is a sectional diagram of a projecting apparatus of the utility model.

[0030] Fig.4 is a schematic structural diagram of a light-emitting assembly, a film assembly, and an audio assembly.

100311 Fig.5 is a schematic structural diagram of a light-emitting assembly, a film assembly, and an audio assembly in an angle under a decomposition state; [0032] Fig.G is a schematic structural diagram of a light-emitting assembly, a film assembly, and an audio assembly in another angle under a decomposition state; and 100331 Fig. 7 is a schematic diagram of an optical principle of a projecting apparatus of the utility model.

[0034] Description of reference signs:

Reference signs Names Reference signs Names First housing 51 Film sheet 11 First mounting hole 521 Upper housing 21 First incoherent 522 Lower housing light source 22 First condensing 523 Fixing boss lens 23 Second condensing 53 Film Tray lens 24 Second sleeve tube 531 Mounting groove 31 Control plate 532 Position-avoidance groove 32 Electronic label 54 Limiting ring 33 Speaker 55 Rotating plate 41 Imaging lens 551 Fi xin a barOOVe 42 Adjusting lens 552 Annular groove 43 Wide-angle lens 56 Pressing plate 44 First sleeve tube 6] Motor Bracket 62 Fixing plate Second transmission 63 Driving gear gear 66 Rotating shaft 64 First transmission gear 100351 The realization, functional characteristics and advantages of the objective of the utility model will be further described with reference to the drawings in conjunction with the embodiments

DETAILED DESCRIPTION OF EMBODIMENTS

100361 The following clearly and completely describes the technical solutions in embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without creative labor shall fall within the protection scope of the utility model.

100371 It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain a relative position relationship and movement among various components under a certain posture (as shown in the accompanying drawings). If a specific posture changes, the directional indication also changes accordingly.

100381 In addition, if there are descriptions of terms such as "first", "second" and the like in the embodiments of the utility model, the descriptions of the terms such as "first", "second" and the like are merely intended for a purpose of description, and shall not be understood as an indication or implication of relative importance or implicit indication of a quantity of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" in the whole text is to include three parallel schemes. Taking "A and/or B" as an example, "A and/or B" includes scheme A, scheme B, or a scheme that A and B are satisfied at the same time. In addition, the technical solutions among the various embodiments may be combined with each other, but should be based on what may be achieved by the person skilled in the art. When a combination of technical solutions is contradictory or cannot be achieved, it should be considered that such a combination of technical solutions does not exist, and also does not fall within the scope of protection required by the utility model.

[0039] The utility model proposes a projecting apparatus for generating a light effect of a galactic starry sky.

[0040] In an embod -nent of the utility model, as shown n Figs 1-7, the projecting apparatus includes: 100411 a light-emitting assembly including at least one first incoherent light source 21 and at least one first condensing lens 22, the first condensing lens 22 being arranged on an illuminating surface of the first incoherent light source 21; [0042] a film assembly including a film sheet 51 provided with a galactic starry sky pattern, the film sheet 51 being arranged on the other side of the first condensing lens 22 relative to the first incoherent light source 21; and, 100431 an imaging assembly including at least three lenses, the three lenses being an imaging lens 41, an adjusting lens 42, and a wide-angle lens 43 arranged sequentially in a projection direction of the film sheet 51, respectively.

[0044] In this embodiment, the first incoherent light source 21 is a light-emitting member of the projecting apparatus, and is configured to illuminate and project a pattern onto a light shadow bearing surface. The plurality of first incoherent light sources 21 can be arranged to improve intensity of a light ray. The first condensing lens 22 is configured to focus a light ray emitted by the first incoherent light source 21 to improve intensity of the light ray, and is arranged on the illuminating surface of the first incoherent light source 21.

[0045] The film sheet 51 is a pattern bearing member of the projecting apparatus. A pattern similar to the galactic starry sky is arranged on the film sheet 51, and is arranged on the other side of the first condensing lens 22 relative to the first incoherent light source 21, so that when the first condensing lens 22 projects the focused light ray onto the film sheet 51, the galactic starry sky pattern on the film sheet 51 is mapped onto the light shadow bearing surface. Therefore, the light shadow bearing surface exhibits the effect of the galactic starry sky.

100461 The imaging assembly is configured to process light spots of a pattern passing through the film sheet 51 to present the pattern on the film sheet 51 clearly and completely on the light shadow bearing surface. Specifically, the imaging lens 41, the adjusting lens 42, and the wide-angle lens 43 are arranged sequentially in the projection direction of the film sheet 51. The imaging lens 41 is configured to collect the light spots of the effective pattern passing through the film sheet 51, thereby forming and projecting a real image pattern to the adjusting lens 42. The adjusting lens 42 then reforms, corrects and projects the real image pattern onto the wide-angle lens 43. The wide-angle lens 43 magnifies and projects the adjusted real image pattern onto the light shadow bearing surface, thereby exhibiting a clearly enlarged pattern effect on the light shadow bearing surface.

[0047] It should be explained that the first incoherent light source 21, the first condensing lens 22, the film sheet 51, and a lens of the imaging assembly are all arranged coaxially, so that the loss of the light ray emitted by the first incoherent light source 21 can be effectively reduced, thereby improving the brightness of a pattern projected by the projecting apparatus.

[0048] For the technical solution of the utility model, the first condensing lens 22 is arranged on the illuminating surface of the first incoherent light source 21. The film sheet 51 is arranged on the other side of the first condensing lens 22 relative to the first incoherent light source 21. The imaging assembly is arranged on the other side of the film sheet 51 relative to the first condensing lens 22. The imaging assembly includes at least three lenses. The three lenses are the imaging lens 41, the adjusting lens 42, and the wide-angle lens 43 arranged sequentially in the projection direction of the film sheet 51. It should be explained that the imaging lens 41 is configured to collect the light spots of the effective pattern passing through the film sheet 51, thereby forming the real image pattern to be projected onto the adjusting lens 42. The adjusting lens 42 is configured to reform, correct and project the real image onto the wide-angle lens 43. The wide-angle lens 43 is configured to magnify and project the adjusted real image pattern onto the light shadow bearing surface, thereby exhibiting the clearly enlarged pattern effect on the light shadow bearing surface. The plurality of lens with different functions are arranged, thereby effectively improving clarity of the projected pattern of the projecting apparatus, and effectively improving practicality of the projecting apparatus.

[0049] Further, as shown in Figs 2-6, the projecting apparatus further includes a first housing 10 and an audio assembly. The light-emitting assembly is arranged in the first housing 10. The first housing 10 is opened and provided with a first mounting hole 11. The film assembly is arranged detachably in the first mounting hole 11. The audio assembly includes a control plate 31, an electronic label 32 corresponding to the film sheet 51, an identifying module for identifying the electronic label 32 and arranged on the control plate 31, a storage medium pre-stored with an audio corresponding to a galactic starry sky pattern and a speaker 33 electrically connected to the control plate 31. The electronic label 32 is arranged on the film assembly. The control plate 31, the storage medium, and the speaker 33 are arranged within the first housing 10. In this embodiment, the first housing 10 is a shell of the projecting apparatus for protecting the other components of the projecting apparatus and for providing a mounting position for the other components of the projecting apparatus. The first housing 10 is opened and provided thereon with a first mounting hole 11. The first mounting hole 11 is configured to mount the film assembly.

[0050] The audio assembly is configured to automatically identify the electronic label 32 on the film sheet 51, so as to automatically play the audio corresponding to the galactic starry sky on the film sheet 51. Specifically, the film sheet 51 is provided thereon with the electronic label 32. The electronic label 32 is configured to number the film sheet 51. Specifically, the electronic label can be an RED label, an IC induction label, or a bar code label, without limitation herein. When the film assembly is mounted into the first mounting hole 11, the identifying module automatically identifies the number on the electronic label 32, and then generates and forwards an electrical signal to the control plate 31. The control plate 31 positions the corresponding audio in the storage medium according to electrical signals and then plays the audio via the speaker 33. 100511 It should be explained that the first incoherent light source 21, the first condensing lens 22, the film sheet 51, and a lens of the imaging assembly are all arranged coaxially, so that the loss of the light ray emitted by the first incoherent light source 21 can be effectively reduced, thereby improving the brightness of a pattern projected by the projecting apparatus.

100521 Further, as shown in Figs. 2-6, the electronic label 32 is an RFID label. The identifying module includes an RFID chip. In this embodiment, the electronic label 32 is preferably the RFID label. RFID is a radio frequency identification technology. Compared to IC induction or a bar code label, the RFID label has waterproof anti-magnetic, high-temperature resistance, long service life, long read distance and other characteristics. In addition, the identifying module includes the RFID chip for sensing the data on the REID label.

[0053] Further, as shown in Figs. 2-6, the film assembly includes a second housing and a film tray 53. The film sheet 51 is arranged 53 on the film tray 53. The position of the second housing corresponding to the first mounting hole 11 is fixed in the first housing 10. The film tray 53 is inserted and provided in the first mounting hole 11 and extends into the second housing. In this embodiment, the second housing is configured to provide the film tray 53 with a movable mounting position. Specifically, the second housing is fixed in the first housing 10 and is arranged at the position corresponding to the first mounting hole 11. The film tray 53 can be movably inserted and provided into the second housing via the first mounting hole 11 so that the user can change the film sheet 51 at any time according to the use scenario. Therefore, the projecting apparatus is suitable for more scenarios, thus effectively improving the practicality of the projecting apparatus.

[0054] It should be explained that when the film tray 53 is inserted and provided into the second housing, a light-transmitting hole is arranged at the position of the second housing corresponding to the film sheet 51, so that the light ray reflected by the first condensing lens 22 can accurately illuminate onto the film sheet 51.

[0055] In addition, the control plate 31 is fixed to the bottom of the second housing, so that the control plate 31 more effectively senses the electronic label 32 on the film sheet 51. Therefore, the identifying module has more accurate identification.

[0056] Further, as shown in Figs. 1-7, the film assembly further includes a rotating plate 55 and a pressing plate 56. The rotating plate 55 is opened and provided with a fixing groove 551. The film sheet 51 and the pressing plate 56 are fixedly arranged in the fixing groove 551. The rotating plate 55 and the pressing plate 56 are made of a transparent material. The film tray 53 is opened and provided thereon with a mounting groove 531. The rotating plate 55 is arranged within the mounting groove 531. In this embodiment, the rotating plate 55 and the pressing plate 56 are configured to fix the film sheet 51. Specifically, the film sheet 51 is arranged in the fixing groove 551. The pressing plate 56 is arranged on the film sheet Si. The pressing plate 56 and the rotating plate 55 are packaged through a press-fitting process, thereby preventing the film sheet 51 from contacting with air, preventing the pattern on the film sheet 51 from being oxidized, and effectively improving a service life of the film sheet 51.

[0057] The mounting groove 531 is arranged by corresponding to a position of the first condensing lens 22. The rotating plate 55 is arranged in the mounting groove 531. Therefore, a projection effect of the projecting lamp can be effectively avoided from being affected because the film sheet 51 does not correspond to a first condensing projection due to a mistaken installation of the rotating plate 55. The mounting groove 531 is opened and provided with a light transmission hole at the position of the film sheet 51 so that the light refracted by the first condensing lens 22 can be accurately illuminated to the film 51.

100581 It should be explained that the rotating plate 55 and the pressing plate 56 are made of the transparent material, so that the light ray can pass through the rotating plate 55 and the pressing plate 56 to project the pattern on the film sheet 51 out.

100591 In addition, a positioning column is arranged in the fixing groove 551. The film sheet 51 and the pressing plate 56 are opened and provided with a positioning hole cooperating with the positioning column, thereby effectively improving the assembly efficiency of the film assembly. 100601 Further, the electronic label 32 is provided as an annular shape. The rotating plate 55 is opened and provided with an annular groove 552. The electronic label 32 is arranged within the annular groove 552. The film sheet 51 is positioned in the middle of the electronic label 32. In this embodiment, the identifying module has an automatic induction area. The electronic label 32 is arranged as the annular shape so that the electronic label 32 is always in the automatic induction area in a rotation process, thereby improving the stability of the automatic induction of the identifying module.

100611 Further, as shown in Figs. 2-6, the projecting apparatus further includes a first driving assembly arranged in a mounting casing. The first driving assembly includes a motor 61, a fixing plate 62, and a gear set. The fixing plate 62 is fixed within the first housing 10. The motor 61 is fixed on the fixing plate 62. The sidewall of the rotating plate 55 is arranged in a tooth shape meshing with the gear set so that the motor 61 drives the rotating plate 55 via the gear set to rotate. In this embodiment, the first driving assembly is configured to drive the rotating plate 55 to rotate, so that the light effect of the galactic starry sky projected by the projecting apparatus becomes dynamic, thereby promoting the diversification of the light effect projected by the projecting apparatus. Specifically, the fixing plate 62 is arranged within the first housing 10 for fixing the motor 61. The gear set is arranged on the motor 61. Additionally, the sidevvall of the rotating plate 55 is arranged in a tooth shape. The motor 61 drives the rotating plate 55 via the gear set to rotate, thereby forming a dynamic lighting effect.

100621 Further, the first driving assembly is arranged below the first incoherent light source 21. The first driving assembly further includes a rotating shaft 66 of which one end is fixed on the fixing plate 62 and of which the other end is fixed on the second housing. The gear set includes a driving gear 63 arranged on a motor shaft, a first transmission gear 64 sleeved on a rotating shaft 66 and meshed with the driving gear 63, and a second transmission gear 65 sleeved on the rotating shaft 66 and fixedly connected to the first transmission gear 64. The second transmission gear 65 is meshed with the rotating plate 55. The second transmission gear 65 has the number of teeth smaller than that of the first transmission gear 64. In this embodiment, the first driving assembly can be arranged on the peripheral side of the first incoherent light source 21, or can be arranged below the first incoherent light source 21. Preferably, the first driving assembly is arranged below the first incoherent light source 21, thereby effectively reducing the occupied area of the projecting apparatus and thus saving a space. The second transmission gear 65 has the number of teeth less than that of the first transmission gear 64, so that the second transmission gear 65 has a smaller transmission ratio. Additionally, the rotating plate 55 has the number of teeth more than that of the second transmission gear 65, so that the second transmission gear 65 drives the rotating plate 55 to rotate at a very slow speed, which is closer to the effect of actual rotation of a starry sky. This can effectively improve the user's experience.

100631 Further, the second housing includes an upper housing 521 and a lower housing 522. The film tray 53 and the lower housing 522 are opened and provided with a position-avoidance groove 532 for avoiding the position of the second transmission gear 65. The rotating shaft 66 passes through the position-avoidance groove 532 and is fixed on the upper housing 521. The bottom wall of the mounting groove 531 is provided with a limiting ring 54 correspondingly provided with the annular groove 552. In this embodiment, the upper housing 521 is snap-connected to the lower housing 522 to form a mounting space for mounting the film tray 53. The lower housing 522 and the film tray 53 are provided with the position-avoidance groove 532 for maintaining the second transmission gear 65 to be effectively meshed with the rotating plate 55. The limiting ring 54 cooperates with the annular groove 552 to prevent the rotating plate 55 from being moved in a horizontal direction during rotation, which may cause the pattern projected by projecting apparatus to be shaken, and hence affect the projection effect. Therefore, this effectively improves the practicality of the projecting apparatus.

100641 Further, as shown in Figs. 1 to 6, the imaging assembly includes a first sleeve tube 44. The imaging lens 41, the adjusting lens 42, and the wide-angle lens 43 are arranged within the first sleeve tube 44. The top of the second housing is provided with a fixing boss 523. The first sleeve tube 44 is threadedly connected to the fixing boss 523 to reciprocate the first sleeve tube 44 relative to the fixing boss 523 in an axial extension direction of the first sleeve tube 44. In this embodiment, the first sleeve tube 44 is configured to fix the imaging lens 41, the adjusting lens 42, and the wide-angle lens 43 so that the imaging lens 41, the adjusting lens 42, and the wide-angle lens 43 are always on the same axis. Therefore, a change in a relative position of the imaging lens 41, the adjusting lens 42, or the wide-angle lens 43 is avoided when the projecting apparatus is subjected to an external force, which further affects the projecting effect of the projecting apparatus. This thus effectively improves the structural stability of the projecting apparatus.

[0065] Further, an outer wall surface of the first sleeve 44 is provided with outer threads. An inner wall surface of the fixing boss 523 is provided with inner threads that cooperate with the first sleeve tube 44. The first sleeve tube 44 is threadedly connected to the fixing boss 523, so that the first sleeve tube 44 moves back and forth in an axial direction of the first sleeve tube 44 relative to the fixing boss 523 when being rotated clockwise or counterclockwise. It can be understood that the image projected by the imaging assembly is made clearer by adjusting a distance between the first sleeve tube and the film sheet 51.

100661 In addition, the imaging lens 41, the adjusting lens 42 and the wide-angle lens 43 are aspherically designed lenses. First abutting bosses are arranged on the sides of the imaging lens 41, the adjusting lens 42, and the wide-angle lens 43. The first abutting boss has a height greater than a thickness of the middle of each of the lenses, thereby effectively preventing each of the lenses from having friction or collision within the first sleeve tube 44, which affects the projecting effect of the projecting apparatus.

[0067] The bottom of the first sleeve tube 44 is also provided with an abutting member for abutting against the imaging lens 41. The abutting member is provided with a bearing boss. The abutting member is fixed to the first sleeve tube 44 for abutment, and the bearing boss is positioned within the first sleeve tube 44 to bear the imaging lens 41, thereby preventing the imaging lens 41 from slipping out of the first sleeve tube 44.

100681 Further, as shown in Figs. 1-6, the light-emitting assembly further includes a second condensing lens 23. The second condensing lens 23 is arranged on the other side of the first condensing lens 22 relative to the first incoherent light source 21. In this embodiment, the first condensing lens 22 is configured to converge the light ray emitted by the first incoherent light source 21 to improve the intensity of the light ray. The second condensing lens 23 is arranged on the other side of the first condensing lens 22 relative to the first incoherent light source 21, and is configured to refract the light ray converged by the first condensing lens 22 again to uniformly project the light ray onto the film sheet 51, so as to avoid that the pattern on the film sheet 51 differs locally in shades due to the different intensities of the light ray, which affects the projecting effect of the projecting apparatus. Therefore, this effectively improves the practicality of the projecting apparatus.

100691 Further, the light-emitting assembly further includes a second sleeve tube 24 arranged on the first incoherent light source 21. The first condensing lens 22 and the second condensing lens 23 are arranged within the second sleeve tube 24. Both of the first condensing lens 22 and the second condensing lens 23 are aspherically designed lenses. Second abutting bosses are arranged on the sides of the first condensing lens 22 and the second condensing lens 23. The second abutting boss has a height greater than a thickness of middles of the first condensing lens 22 and the second condensing lens 23.

100701 Further, the projecting apparatus further includes a laser assembly. The laser assembly includes at least one coherent light source, at least one diffraction medium, and a second driving assembly for driving the diffraction medium to rotate. The diffraction medium is arranged on the illuminating surface of the coherent light source. In an embodiment, the laser assembly is configured to project another light effect. Specifically, the diffraction medium is arranged on the illuminating surface of the coherent light source. When the light ray emitted by the coherent light source passes through the diffraction medium, a light effect similar to stars is exhibited on the bearing surface of the light source. Additionally, the second driving assembly drives the diffraction medium to rotate, so that the light effect similar to stars appears as a dynamically moving light effect of the starry sky, thus effectively improving the effect diversity of the projecting apparatus.

100711 Further, as shown in Figs. 2 and 3, the projecting apparatus further includes a bracket 70. The first housing 10 is rotatably connected to the bracket 70. In this embodiment, the bracket 70 is configured to support the first housing 10. The first housing is rotatably connected to the bracket 70 via a rotating assembly, so that the user conveniently adjusts a projecting angle of the projecting apparatus, which effectively improves the practicality of the projecting apparatus.

100721 The forgoing is only a preferred embodiment of the utility model, and is not intended to limit the patent scope of the utility model. Under the inventive concept of the utility model, an equivalent structure variation made by the contents of the description and drawings of the utility model or direct/indirect use of the utility model in other related arts is included in the scope of patent protection of the utility model.

Claims

CLAIMSWHAT IS CLAIMED IS: 1. A projecting apparatus for generating a light effect of a galactic starry sky, comprising: a light-emitting assembly comprising at least one first incoherent light source and at least one first condensing lens, the first condensing lens being arranged on an illuminating surface of the first incoherent light source; a film assembly comprising a film sheet provided with a galactic starry sky pattern, the film sheet being arranged on the other side of the first condensing lens relative to the first incoherent light source; and, an imaging assembly comprising at least three lenses, the three lenses being an imaging lens, an adjusting lens, and a wide-angle lens arranged sequentially in a projection direction of the film sheet, respectively.
2. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 1, further comprising a first housing and an audio assembly, the light-emitting assembly being arranged in the first housing, the first housing being opened and provided with a first mounting hole, the film assembly being arranged detachably in the first mounting hole, an audio assembly comprising a control plate, an electronic label corresponding to the film sheet, an identifying module for identifying the electronic label and arranged on the control plate, a storage medium pre-stored with an audio corresponding to a galactic starry sky pattern and a speaker electrically connected to the control plate, the electronic label being arranged on the film assembly, the electronic label being arranged on the film assembly, and the control plate, the storage medium, and the speaker being arranged within the first housing.
3. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 2, wherein the electronic label is an RF1D label, and the identifying module comprises an REED chip.
4. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 2, wherein the film assembly comprises a second housing and a film tray, the film sheet is arranged on the film tray, a position of the second housing corresponding to the first mounting hole is fixed in the first housing, and the film tray is inserted in the first mounting hole and extends into the second housing.
5. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 4, wherein the control plate is fixed to a bottom of the second housing.
6. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 5, wherein the film assembly further comprises a rotating plate and a pressing plate, the rotating plate is opened and provided with a fixing groove, the film sheet and the pressing plate are fixedly arranged in the fixing groove, the rotating plate and the pressing plate are made of a transparent material, the film tray is opened and provided with a mounting groove, and the rotating plate is arranged in the mounting groove.
7. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 6, wherein the electronic label is provided as an annular shape, the rotating plate is opened and provided with an annular groove, the electronic label is arranged within the annular groove, and the film sheet is positioned in a middle of the electronic label.
8. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 7, further comprising a first driving assembly arranged in the first housing, the first driving assembly comprising a motor, a fixing plate, and a gear set, the fixing plate being fixed within the first housing, the motor being fixed on the fixing plate, and a sidewall of the rotating plate being arranged in a tooth shape that meshes with the gear set so that the motor drives the rotating plate via the gear set to rotate.
9. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 8, wherein the first driving assembly is arranged below the first incoherent light source, the first driving assembly further comprises a rotating shaft of which one end is fixed on the fixing plate and of which the other end is fixed on the second housing, the gear set comprises a driving gear arranged on a motor shaft, a first transmission gear sleeved on the rotating shaft and meshed with the driving gear, and a second transmission gear sleeved on the rotating shaft and fixedly connected to the first transmission gear, the second transmission gear is meshed with the rotating plate, and the second transmission gear has the number of teeth less than that of the first transmission gear.
10. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 9, wherein the second housing comprises an upper housing and a lower housing, the film tray and the lower housing are opened and provided with a position-avoidance groove for avoiding a position of the second transmission gear, and the rotating shaft passes through the position-avoidance groove and is fixed on the upper housing; a bottom wall of the mounting groove is provided with a limiting ring correspondingly provided with the annular groove
11 The projecting apparatus for generating the light effect of the galactic starry sky according to claim 4, wherein the imaging assembly comprises a first sleeve tube, and the imaging lens, the adjusting lens, and the wide-angle lens are arranged within the first sleeve tube; a top of the second housing is provided with a fixing boss, the first sleeve tube is threadedly connected to the fixing boss to reciprocate the first sleeve tube relative to the fixing boss in an axial extension direction of the first sleeve tube.
12. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 1, wherein the light-emitting assembly further comprises a second condensing lens, and the second condensing lens is arranged on the other side of the first condensing lens relative to the first incoherent light source.
13. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 12, wherein the light-emitting assembly further comprises a second sleeve tube, the second sleeve tube is sleeved on the first incoherent light source, and the first condensing lens and the second condensing lens are arranged within the second sleeve tube.
14. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 1, wherein the first incoherent light source, the first condensing lens, the film sheet, and the imaging assembly are arranged coaxially.
15. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 2, wherein the electronic label is an NEC label, and the identifying module comprises an NEC chip.
16. The projecting apparatus for generating the light effect of the galactic starry sky according to claim 1, further comprising a laser assembly, the laser assembly comprising at least one coherent light source, at least one diffraction medium, and a second driving assembly for driving the diffraction medium to rotate, and the diffraction medium being provided on the illuminating surface of the coherent light source.