Projection assembly and projection equipment
The projection component uses a reflective element to redirect light from the light source module, addressing layout limitations and enhancing projection richness and compactness by combining two projection patterns.
Patent Information
- Application Number
- CN202421815806.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The arrangement of light source modules and multiple projection lenses along the optical axis of the light source module in the existing projection assembly leads to limitations in layout, affecting structural compactness and projection effect.
By introducing reflectors to turn the outgoing light of the light source module, and combining the design of the projection film and relay lens, the optical path layout is adjusted so that the light source module, projection film and reflector are set in a suitable position to form a double projection pattern to enrich the visual effect.
The structure of the projection component is achieved by a more compact structure, and the light spot has a dual projection image effect, which improves space utilization and visual experience.
Smart Images
Figure CN223108247U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of projection technology, and particularly to a projection component and a projection device. Background Art
[0002] Currently, a projection component can project patterns of multiple projection lenses through a light source module. However, in the related art, the light source module and multiple projection lenses of the projection system are arranged in sequence along the optical axis of the light source module, resulting in a relatively limited layout of the light source module and the projection lenses of the projection component. Summary of the Utility Model
[0003] Embodiments of the present utility model propose a projection component and a projection device to improve at least one of the above problems.
[0004] Embodiments of the present utility model achieve the above object through the following technical solutions.
[0005] In a first aspect, embodiments of the present utility model provide a projection component, which includes a light source module, a slide, and a reflector. The light source module can be used to generate outgoing light. The reflector is located in the outgoing light path of the light source module. The reflector has a first projection area. The outgoing light of the light source module is refracted by the reflector and passes through the first projection area of the reflector to form a first projection pattern. At least part of the light refracted by the reflector passes through the slide to form a second projection pattern. At least part of the first projection pattern and the second projection pattern overlap.
[0006] In some embodiments, the reflector is a plane mirror. The reflector has a first reflection surface, which includes a connected first projection area and a second projection area. The second projection area surrounds the first projection area. The reflectivity of the first projection area is greater than that of the second projection area. The outgoing light of the light source module is reflected by the first projection area to form a first projection pattern. At least part of the light reflected by the first projection area exits from the slide to form a second projection pattern.
[0007] In some embodiments, the reflector is a total reflection prism. The reflector has a light incident surface, a light exit surface, and a second reflection surface. The second reflection surface is connected between the light incident surface and the light exit surface. The light exit surface includes a first projection area and a second projection area. The second projection area surrounds the first projection area. The light transmittance of the first projection area is greater than that of the second projection area. The outgoing light of the light source module passes through the light incident surface and is reflected by the second reflection surface to the light exit surface. The light reflected by the second reflection surface passes through the light exit surface and exits to the slide; the light reflected by the second reflection surface forms a first projection pattern after passing through the first projection area, and at least part of the light passing through the first projection area exits from the slide to form a second projection pattern.
[0008] In some embodiments, the projection component further includes a light-absorbing layer, and the light-absorbing layer is disposed in the second projection area.
[0009] In some embodiments, the light source module and the slide are arranged along a first direction, the first direction is consistent with the axial direction of the slide, the reflector and the slide are arranged along a second direction, and the second direction is consistent with the radial direction of the slide.
[0010] In some embodiments, the light spot of the light emitted by the light source module passing through the first projection area of the reflector at least partially falls on the slide along the first direction.
[0011] In some embodiments, the projection component further includes a relay lens, the relay lens is disposed between the slide and the reflector, the light emitted by the light source module passes through the reflector and then sequentially passes through the relay lens and the slide, and the relay lens is used to focus the light scattered from the edge of the first projection area of the light emitted by the light source module.
[0012] In some embodiments, the relay lens is arranged in parallel with the slide.
[0013] In some embodiments, the slide is rotatably arranged relative to the reflector.
[0014] In a second aspect, an embodiment of the present invention provides a projection device, the projection device includes a housing and the projection component of any of the above embodiments, and the projection component is installed in the housing.
[0015] In the projection component and the projection device provided by the embodiments of the present invention, the projection component includes a light source module, a slide and a reflector. The light source module can be used to generate emitted light. The reflector is located on the emitted light path of the light source module. The reflector has a first projection area. The light emitted by the light source module is refracted by the reflector and passes through the first projection area of the reflector to form a first projection pattern. At least part of the light refracted by the reflector passes through the slide to form a second projection pattern. The first projection pattern and the second projection pattern at least partially overlap. Thus, compared with the projection component in the related art, the projection component of the present application refracts the emitted light of the light source module through the reflector, which helps to arrange the light source module, the slide and the reflector at appropriate positions to effectively adjust the optical path layout of the projection component, so that the structure of the entire projection component is more compact. In addition, the first projection pattern and the second projection pattern at least partially overlap, so that the light spot of the projection component combines the visual effects of the two patterns, so that the light spot of the projection component has the effect of a double projection image, and the projection effect of the projection component is relatively rich to meet the user's usage requirements. Description of the Drawings
[0016] To more clearly illustrate the technical solutions of the present application, the accompanying drawings required for the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.
[0017] Figure 1 It shows a schematic structural diagram of a projection assembly provided by an embodiment of the present utility model.
[0018] Figure 2 It shows Figure 1 a schematic structural diagram of the reflecting member in
[0019] Figure 3 It shows Figure 1 a schematic structural diagram of the slide film in
[0020] Figure 4 It shows a schematic structural diagram of a projection assembly provided by another embodiment of the present utility model.
[0021] Figure 5 It shows Figure 4 a schematic structural diagram of the reflecting member in
[0022] Figure 6 It shows a schematic structural diagram of a projection assembly provided by another embodiment of the present utility model.
[0023] Figure 7 It shows a schematic structural diagram of a projection assembly provided by still another embodiment of the present utility model.
[0024] Figure 8 It shows Figure 1 a schematic diagram of the effect of the light spot of the projection assembly in
[0025] Explanation of the reference numerals in the drawings:
[0026] Projection assembly 10, light source module 100, slide film 200, reflecting member 300, first reflecting surface 301, light-emitting surface 302, light-incident surface 303, second reflecting surface 304, first projection area 311, second projection area 312, relay lens 400, motor 510, driving gear 520, tray gear 530, lens module 600, first direction X, second direction Y. Specific embodiments
[0027] To enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the utility model.
[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model.
[0029] Please refer to Figure 1 、 Figure 2 and Figure 8 In an embodiment of the present utility model, a projection assembly 10 is provided. The projection assembly 10 may include a light source module 100, a slide 200, and a reflector 300. The light source module 100 may be configured to generate outgoing light. The reflector 300 may be located in the outgoing light path of the light source module 100. The reflector 300 may have a first projection area. The outgoing light of the light source module 100 is refracted by the reflector 300 and passes through the first projection area of the reflector 300 to form a first projection pattern. At least a part of the light refracted by the reflector 300 passes through the slide 200 to form a second projection pattern. At least a part of the first projection pattern and the second projection pattern overlap. Thus, compared with the projection assembly in the related art, the projection assembly 10 of the present application refracts the outgoing light of the light source module 100 through the reflector 300, which helps to arrange the light source module 100, the slide 200, and the reflector 300 at appropriate positions, effectively adjusting the optical path layout of the projection assembly 10, and making the structure of the entire projection assembly 10 more compact.
[0030] In addition, at least a part of the first projection pattern and the second projection pattern overlap, so that the light spot of the projection assembly 10 combines the visual effects of the two patterns, resulting in the light spot of the projection assembly 10 having the effect of a double projection image, making the projection effect of the projection assembly 10 relatively rich to meet the user's usage requirements.
[0031] In some embodiments, the reflector 300 may refract the outgoing light of the light source module 100, thereby changing the direction of the outgoing light of the light source module 100.
[0032] Please refer to Figures 1 to 3, in some embodiments, the reflector 300 is a plane mirror. The reflector 300 has a first reflection surface 301, and the first reflection surface 301 includes a connected first projection area 311 and a second projection area 312. The second projection area 312 surrounds the first projection area 311. The light emitted from the light source module 100 forms a first projection pattern after being reflected by the first projection area 311, and at least part of the light reflected by the first projection area 311 exits from the slide 200 to form a second projection pattern.
[0033] In this embodiment, the reflectivity of the first projection area 311 is greater than that of the second projection area 312. That is to say, the reflectivity of the first projection area 311 reflecting the light emitted from the light source module 100 to the slide 200 is greater than that of the second projection area 312 reflecting the light emitted from the light source module 100 to the slide 200, so that the spot brightness of the light emitted from the light source module 100 reflected by the first projection area 311 to the slide 200 is greater than the spot brightness of the light emitted from the light source module 100 reflected by the second projection area 312 to the slide 200. As a result, the first projection pattern has a distinct boundary, and further, the first projection pattern and the second projection pattern are more prominent in the visual effect, so as to improve the visual experience of the viewer.
[0034] Please refer to Figures 3 to 5 , in some embodiments, the reflector 300 is a total reflection prism. The reflector 300 has a light incident surface 303, a light exit surface 302, and a second reflection surface 304. The second reflection surface 304 is connected between the light incident surface 303 and the light exit surface 302. Among them, the light incident surface 303 can be one of the right-angle surfaces of the reflector 300, the light exit surface 302 can be the other right-angle surface of the reflector 300, the second reflection surface 304 can be the inclined surface of the reflector 300, the light incident surface 303 can be perpendicular to the light exit surface 302, the included angle formed between the second reflection surface 304 and the light incident surface 303 can be 45 degrees, and the included angle formed between the second reflection surface 304 and the light exit surface 302 can be 45 degrees.
[0035] The light exit surface 302 can include a first projection area 311 and a second projection area 312. The second projection area 312 surrounds the first projection area 311. The light emitted from the light source module 100 passes through the light incident surface 303 and is then reflected by the second reflection surface 304 to the light exit surface 302. The light reflected by the second reflection surface 304 passes through the light exit surface 302 and then exits to the slide 200. The light reflected by the second reflection surface 304 forms a first projection pattern after passing through the first projection area 311, and at least part of the light passing through the first projection area 311 exits from the slide 200 to form a second projection pattern.
[0036] In this embodiment, the light transmittance of the first projection area 311 is greater than that of the second projection area 312. That is to say, the light transmittance of the light reflected by the second reflecting surface 304 passing through the first projection area 311 is greater than the light transmittance of the light reflected by the second reflecting surface 304 passing through the second projection area 312, so that the spot brightness of the light reflected by the second reflecting surface 304 passing through the first projection area 311 is greater than the spot brightness of the light reflected by the second reflecting surface 304 passing through the second projection area 312, thereby making the boundary of the first projection pattern obvious, and further making the first projection pattern and the second projection pattern more prominent in the visual effect, so as to improve the visual experience of the viewer.
[0037] In some embodiments, the projection assembly 10 further includes a light absorbing layer, wherein the light absorbing layer is a screen-printed black ink coating or a black nickel electroplating layer, and the light absorbing layer is disposed in the second projection area 312. In this way, the light absorbing layer can absorb the light emitted by the light source module 100 and incident on the second projection area 312, which helps to achieve that the reflectivity of the first projection area 311 reflecting the light emitted by the light source module 100 to the slide 200 is greater than the reflectivity of the second projection area 312 reflecting the light emitted by the light source module 100 to the slide 200; or, it helps to achieve that the light transmittance of the light reflected by the second reflecting surface 304 passing through the first projection area 311 is greater than the light transmittance of the light reflected by the second reflecting surface 304 passing through the second projection area 312.
[0038] Please refer to Figure 1 , in some embodiments, the light source module 100 and the slide 200 are arranged along the first direction X (the first direction may be the Figure 1 X-axis direction), the first direction is consistent with the axial direction of the slide 200, the reflector 300 and the slide 200 are arranged along the second direction Y (the second direction may be the Figure 1 Y-axis direction), and the second direction Y is consistent with the radial direction of the slide 200. In this way, compared with the projection assembly in the related art, the projection assembly 10 of the present application can adjust the relative positions among the light source module 100, the slide 200 and the reflector 300 through the reflector 300, which helps to reduce the size of the projection assembly 10 along the axial direction of the optical axis of the light emitted by the light source module 100, so that the structure of the projection assembly 10 is relatively compact, and further helps to improve the space utilization rate inside the projection assembly 10.
[0039] It can be understood that the first direction X is consistent with the axial direction of the slide 200, that is to say, the first direction X is parallel or substantially parallel to the axial direction of the slide 200; the second direction Y is consistent with the radial direction of the slide 200, that is to say, the second direction Y is parallel or substantially parallel to the slide 200.
[0040] In some embodiments, the light spot of the light emitted by the light source module 100 passing through the first projection area 311 of the reflector 300 at least partially falls on the slide 200 along the first direction X, which helps the light after the light emitted by the light source module 100 is refracted by the reflector 300 to form a second projection pattern after passing through the slide 200.
[0041] Please refer to Figure 7 , in some embodiments, the projection assembly 10 further includes a relay lens 400. The relay lens 400 is disposed between the slide 200 and the reflector 300. The light emitted by the light source module 100 is refracted by the reflector 300 and then passes through the relay lens 400 and the slide 200 in sequence. The relay lens 400 is also used to focus the light scattered from the edge of the first projection area 311 of the light emitted by the light source module 100. In this way, the relay lens 400 can converge the light incident from different angles to a point or advance along a common focal path, which helps the relay lens 400 to focus the light scattered from the edge of the first projection area 311, thereby helping to improve the clarity of the pattern edge of the light spot of the light emitted by the light source module 100 passing through the first projection area 311.
[0042] Please refer to Figure 6 , in some embodiments, the relay lens 400 is disposed parallel to the slide 200. Among them, the relay lens 400 can focus the light of the light emitted by the light source module 100 passing through the first pattern area of the reflector 300, so that the first projection pattern can be clearly imaged on the slide 200.
[0043] Please refer to Figure 1 and Figure 3 , in some embodiments, the slide 200 is rotatably disposed relative to the reflector 300. Among them, the slide 200 can rotate; or, the reflector 200 can rotate. In this way, since the slide 200 is rotatably disposed relative to the reflector 300, the second projection image can rotate relative to the first projection image, which helps to achieve the effect of dynamic projection of the projection assembly 10, and further helps to enrich the user's visual experience.
[0044] In some embodiments, the slide 200 can rotate. Among them, the projection assembly 10 can include a motor 510, a driving gear 520, and a tray gear 530. The output shaft of the motor 510 is drivably connected to the driving gear 520. The driving gear 520 can be meshed with the tray gear 530. The slide 200 can be disposed on the tray gear 530. When the motor 510 operates, the output shaft of the motor 510 can drive the driving gear 520 to rotate. The driving gear 520 can drive the tray gear 530 to rotate. The slide 200 can rotate following the tray gear 530, which helps to achieve the rotation of the slide 200.
[0045] In addition, the projection assembly 10 can more precisely control the rotation of the transparency 200 through the meshing connection of the driving gear 520 and the tray gear 530, enabling the transparency 200 to rotate by a small angle. Moreover, the structure is relatively simple and the operation is relatively convenient.
[0046] The driving gear 520 can be provided with a light-passing hole (not shown in the figure). The transparency 200 can be located in the light-passing hole. The light emitted by the light source module 100 can be emitted to the transparency 200 from the light-passing hole after being deflected by the reflector 300. The light-passing hole can prevent the driving gear 520 from blocking the light deflected by the reflector 300 from the light source module 100.
[0047] In some embodiments, the reflector 300 can rotate. Among them, the projection assembly 10 can include a motor 510, a driving gear 520, and a tray gear 530. The output shaft of the motor 510 is drivably connected to the driving gear 520. The driving gear 520 can be meshed with the tray gear 530. Both the reflector 300 and the light source module 100 are arranged on the tray gear 530. When the motor 510 operates, the output shaft of the motor 510 can drive the driving gear 520 to rotate, the driving gear 520 can drive the tray gear 530 to rotate, and both the reflector 300 and the light source module 100 rotate following the tray gear 530, thus facilitating the rotation of the reflector 300.
[0048] The light source module 100 includes a red light source, a green light source, and a blue light source. Among them, the red light source, the green light source, and the blue light source can adopt light-emitting devices such as LED lights or lasers. The red light source can emit red light, the green light source can emit green light, and the blue light source can emit blue light. In this way, the light sources of the three primary colors can be arranged according to actual needs, enabling the red light source, the green light source, and the blue light source to work together to produce high-quality full-color projection.
[0049] In addition, red, green, and blue are the three primary colors that make up a color image. By combining and adjusting the brightness of the light emitted by the red light source, the green light source, and the blue light source, the projected image of the projection assembly 10 can present a wide color range.
[0050] The red light source, the green light source, and the blue light source can be independently controlled respectively. That is to say, the red light source, the green light source, and the blue light source can be separately turned on, turned off, or the brightness adjusted, etc. In this way, since the red light source, the green light source, and the blue light source can be independently controlled, the projected image of the projection assembly 10 has a relatively rich color combination. The user can adjust the brightness and contrast of each color according to actual needs, thereby enabling the projected image of the projection assembly 10 to obtain the best color effect.
[0051] In addition, the user can selectively turn on or off the light sources of specific colors as needed, which can effectively reduce the energy consumption of the projection component 10. For example, in scenarios where only monochromatic projection or a specific color combination is required, unnecessary light sources can be turned off to save power.
[0052] Moreover, each light source can be independently controlled, enabling the light source to be turned off when not needed, thereby reducing its working time and effectively extending the service life of the light source.
[0053] In some embodiments, the projection component 10 may further include a lens module 600. The light emitted from the light source module 100 is refracted by the reflector 300 and then sequentially passes through the slide 200 and the lens module 600. The lens module 600 may include one or more lenses, and the lenses may be convex lenses or concave lenses, etc. The lenses in the lens module 600 can effectively adjust the light emitted from the slide 200. For example, the lens module 600 can focus the light emitted from the slide 200, or for another example, the lens module 600 can adjust the divergence angle of the light emitted from the slide 200.
[0054] Please refer to Figure 1 , this embodiment of the present utility model also provides a projection device, which may include a housing (not shown in the figure) and a projection component 10. The projection component 10 can be installed in the housing, which helps the housing to protect the projection component 10.
[0055] The housing can be made of lightweight and strong materials, such as high-strength plastics, magnesium alloy or carbon fiber composite materials, making the projection device both lightweight and resistant to falling and shock.
[0056] The housing may also be provided with a heat dissipation structure, such as heat sinks, fans or liquid cooling systems, etc. The housing may also be provided with ventilation openings and heat dissipation grilles at the ventilation openings, which not only ensure air circulation but also prevent dust from entering, helping to reduce the risk of overheating damage to the sensitive electronic and optical components of the projection component 10 of the projection device.
[0057] The specific structure of the projection component 10 can refer to the above embodiments. Since the projection device adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.
[0058] In a utility model, unless otherwise clearly defined or limited, terms such as "installation" and "connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection; it may be a direct connection, or indirectly connected through an intermediate medium, or the communication inside two components, or just surface contact, or surface contact connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.
[0059] In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as specific references or special structures. The description of "some embodiments" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the utility model, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in the utility model and the features of different embodiments or examples.
[0060] The above embodiments are only used to illustrate the technical solutions of the utility model and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the utility model, and should all be included in the protection scope of the utility model.
Claims
1. A projection component, characterized in that, Comprising: A light source module for generating outgoing light; A reflector located in the outgoing light path of the light source module. The reflector has a first projection area, and the outgoing light of the light source module is refracted by the reflector and passes through the first projection area of the reflector to form a first projection pattern; And A slide, at least part of the light refracted by the reflector passes through the slide to form a second projection pattern, and at least part of the first projection pattern and the second projection pattern overlap.
2. The projection component according to claim 1, wherein The reflector is a plane mirror, the reflector has a first reflection surface, the first reflection surface includes the connected first projection area and the second projection area, the second projection area surrounds the first projection area, and the reflectivity of the first projection area is greater than that of the second projection area; The outgoing light of the light source module forms the first projection pattern after being reflected by the first projection area, and at least part of the light after being reflected by the first projection area exits from the slide to form the second projection pattern.
3. The projection component according to claim 1, characterized in that, The reflector is a total reflection prism, the reflector has an incident light surface, an outgoing light surface and a second reflection surface, the second reflection surface is connected between the incident light surface and the outgoing light surface, the outgoing light surface includes the first projection area and the second projection area, the second projection area surrounds the first projection area, and the light transmittance of the first projection area is greater than that of the second projection area; The outgoing light of the light source module passes through the incident light surface and is reflected by the second reflection surface to the outgoing light surface, and the light reflected by the second reflection surface passes through the outgoing light surface and exits to the slide; the light reflected by the second reflection surface forms the first projection pattern after passing through the first projection area, and at least part of the light passing through the first projection area exits from the slide to form the second projection pattern.
4. The projection component according to claim 2 or 3, characterized in that, The projection assembly further includes an absorbing layer provided in the second projection area.
5. The projection component according to claim 1, characterized in that, The light source module and the slide are arranged in a first direction, the first direction is consistent with the axial direction of the slide, the reflector and the slide are arranged in a second direction, and the second direction is consistent with the radial direction of the slide.
6. The projection component according to claim 5, characterized in that The light spot of the outgoing light of the light source module passing through the first projection area of the reflector at least partially falls on the slide along the first direction.
7. The projection component according to claim 1, wherein The projection assembly further includes a relay lens disposed between the slide and the reflector. The outgoing light of the light source module is refracted by the reflector and then passes through the relay lens and the slide in sequence. The relay lens is used for focusing the light scattered from the edge of the first projection area of the outgoing light of the light source module.
8. The projection component according to claim 7, wherein The relay lens is arranged parallel to the slide.
9. The projection component according to claim 1, characterized in that, The slide is relatively rotatably arranged with respect to the reflector.
10. A projection device, characterized in that, Comprising: A housing; And The projection assembly according to any one of claims 1 to 9, the projection assembly being installed in the housing.