Novel atmosphere projection system

Abstract

The utility model provides a novel atmosphere projection system, which comprises a shell, a light path channel is formed in the shell, a light beam generator used for emitting dynamic pattern light beams, a dodging sheet and at least one condensing lens are arranged in the light path channel, the condensing lens comprises one of a Fresnel lens, a plano-convex lens and a convex lens, and the Fresnel lens, the plano-convex lens and the convex lens are arranged in the shell. The dodging sheet and the condensing lens are sequentially arranged on a light beam path of the light beam generator, and pattern light rays emitted by the light beam generator sequentially pass through the dodging sheet and the condensing lens to form soft image projection. The light effect can be improved through scattering blurring and focusing of light beams, the soft feeling of the transition edge of the generated pattern is better, and the original shape of the dynamic pattern is reserved while the lamplight atmosphere feeling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of projection equipment, in particular to a novel atmosphere projection system. Background Art

[0002] Ambient lights used to create atmosphere are mostly used in scenes with stage entertainment effects such as theaters, studios, bars, and discos. With the growing demand for home entertainment or creating a specific projection atmosphere, small, portable, multi-functional and low-power small ambient projection lamps are increasingly accepted by people and used in family entertainment life. Among this type of ambient lights, the lighting atmosphere effects range from brilliant stars to flowing water waves, adding a rich and colorful interest to people's lives.

[0003] Existing projection lamps use a light-emitting base plate, and the lamp beads on it usually emit light independently to produce light of different colors, thereby achieving irregular projection with an atmosphere. When it is necessary to project patterns with certain regularities and contours (such as animals, flames), a pattern plate printed with different patterns is usually used to project the pattern on the projected object. However, the atmosphere lamp with this structure not only projects a fixed pattern, but also requires the user to replace the pattern plate when changing the pattern, resulting in a poor user experience.

[0004] Although the existing LED screen luminous base can control the lamp beads to enable multiple lamp beads to display different patterns with dynamic effects, the lamp beads of this type of luminous base have severe divergence, and the pattern light beams it produces are in the form of line light sources or point light sources, and cannot form a complete pattern with an atmospheric feeling on the projected object.

[0005] Therefore, there is an urgent need for a projection device that has an atmosphere effect and can project dynamic patterns without excessive deformation. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the present invention proposes a new atmosphere projection system, which can improve the light effect by scattering, blurring and focusing the light beam, making the transition edges of the generated pattern softer, improving the lighting atmosphere while retaining the original shape of the dynamic pattern.

[0007] The technical solution of the present utility model is achieved as follows:

[0008] A new atmosphere projection system includes a shell, in which an optical path channel is formed. The optical path channel is provided with a beam generator for emitting a dynamic pattern light beam, a light homogenizer, and at least one focusing lens. The focusing lens includes one of a Fresnel lens, a plano-convex lens, and a convex lens. The light homogenizer and the focusing lens are sequentially arranged on the beam path of the beam generator. The pattern light emitted by the beam generator passes through the light homogenizer and the focusing lens in sequence to form a soft image projection.

[0009] A further technical solution of this embodiment is that the light beam generator includes a substrate and a plurality of lamp beads arranged on the substrate, and the lamp beads are arranged in an array so as to emit a light beam with a dynamic pattern along the light path.

[0010] A further technical solution of this embodiment is that a focusing surface of the condenser lens is arranged away from the light homogenizer.

[0011] A further technical solution of this embodiment is that the light homogenizer includes a light guide plate and an atomized layer covering the light guide plate, and the atomized layer covers one side or both sides of the light guide plate.

[0012] A further technical solution of this embodiment is that the distance between the light homogenizer and the light beam generator is 0 mm to 50 mm.

[0013] A further technical solution of this embodiment is that the distance between the condensing lens and the light homogenizing plate is 0 mm to 100 mm, and the focal length of the condensing lens is 20 mm to 300 mm.

[0014] A further technical solution of this embodiment is that a heat dissipation base plate is provided on the shell, the heat dissipation base plate is in contact with the light beam generator, and the heat dissipation base plate is made of metal.

[0015] A further technical solution of this embodiment is that the number of the focusing lenses is configured to be two.

[0016] A further technical solution of this embodiment is that the main optical axes of the light homogenizer and the focusing lens are arranged to coincide with each other.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] In the new atmosphere projection system provided by the present invention, the light beam emitted by the light beam generator is scattered after being refracted by the light homogenizer, thereby converting the emitted point light source and line light source into surface light, and the edge transition of the projected pattern is soft. By setting at least two Fresnel lenses to collimate and focus the light beam multiple times, the final projected pattern is not only more accurate in shape, but also fully collects the scattered light, improves the light effect, avoids the image being too dim, and effectively improves the atmosphere and layering of the projection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is a schematic structural diagram of the novel atmosphere projection system of the present utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the novel atmosphere projection system of the present utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of another embodiment of the novel atmosphere projection system of the present utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of another embodiment of the novel atmosphere projection system of the present utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of the light beam generator in the utility model.

[0025] Figure ID:

[0026] 1-housing; 11-heat dissipation base plate;

[0027] 2-beam generator; 21-substrate; 22-lamp beads;

[0028] 31-light homogenizer; 32-light-concentrating lens. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] Existing pattern projection lamps usually use a film in combination with a light source, so that the light beam passes directly through the patterned film to form a projection on the projected object. Due to the limitations of the film, this type of projection lamp can only project static patterns, and the film needs to be replaced when changing different patterns, and the switching steps are relatively cumbersome. In addition, because the projection is produced by a parallel light beam passing directly through the film, the edge lines of the projected pattern are sharp and lack soft transitions, which makes it difficult to meet user needs.

[0033] Based on this, Figures 1 to 5As shown, this embodiment discloses a new atmosphere projection system, including a shell 1, in which an optical path channel is formed, and a beam generator 2 for emitting a dynamic pattern light beam, a light homogenizer 31, and at least one focusing lens 32 are provided in the optical path channel, and the focusing lens 32 includes one of a Fresnel lens, a plano-convex lens and a convex lens, and the light homogenizer 31 and the focusing lens 32 are sequentially arranged on the beam path of the beam generator 2, and the pattern light emitted by the beam generator 2 passes through the light homogenizer 31 and the focusing lens 32 in sequence to form a soft image projection; in order to generate more diverse projection content, the beam generator 2 provided in this embodiment includes a substrate 21 and a plurality of lamp beads 22 arranged on the substrate 21, and the lamp beads 22 are arranged in an array. By controlling the color, on and off, and light intensity of each lamp bead 22, the light beam generator 2 can be edited and driven by the LED array light source board through the light controller software like a TV screen to display different and dynamic lighting effect images. The user connects the light beam generator 2 through the terminal device according to the needs, and controls the light beam generator 2 to project various scenes or objects such as animals, scenery, and flames. The pattern light emitted by the light beam generator 2 first passes through the light-distributing plate 31 with uneven distribution of the medium. When passing through, part of the light of the pattern beam deviates from the original forward direction due to the scattering effect, and the other part of the light continues to move forward, so that the light at each corresponding position in the projection pattern appears in the form of a light spot on the projected object, forming a soft and blurred projection pattern. The light spot size can be easily adjusted by setting a separate light-distributing plate 31. It can be understood by those skilled in the art that the role of the light beam generator is to emit a light beam with a dynamic pattern, so as long as the LED board with an editable pattern is within the scope of protection of this application.

[0034] Since a large amount of light forms a divergent light spot after the pattern light beam passes through the light homogenizer 31, the projection pattern is over-magnified and dim as a whole, which cannot fully realize the effect and atmosphere of the lighting pattern set by the user. Therefore, it is necessary to set a focusing lens 32 behind the light homogenizer 31 to collimate and focus the light with the image. Figure 2 As shown, when the patterned light beam passes through the focusing lens 32, the focusing lens 32 gathers and focuses the divergent pattern light beam, fully improving the projection light effect. The pattern light beam passing through the focusing lens 32 is emitted in parallel or at a small divergence angle. Through the cooperation of the light homogenizer 31 and the focusing lens 32, the dynamic pattern light beam is softened while the brightness and divergence of the light beam are fully controlled, so that the outline of the projection pattern is more restored and has a soft atmosphere.

[0035] In one example, the focusing lens 32 includes one of a Fresnel lens, a plano-convex lens, and a convex lens. This type of lens is based on the principle of light refraction to change the optical path, thereby focusing the divergent dynamic pattern light beam, improving the light collection efficiency and correcting the optical path of the pattern light beam to avoid excessive distortion and divergence of the pattern. Therefore, the above-mentioned lenses can all achieve similar effects, and those skilled in the art can adjust according to actual product requirements. The focusing surface of the focusing lens 32 provided in this embodiment is set away from the light homogenizer 31. The plano-convex lens is a type of convex lens. One side of it is convex and the other side is flat. Light parallel to the main optical axis enters from the flat surface and is refracted by the convex surface and converges toward the main optical axis, passing through the focus. Therefore, the convex side is the focusing surface; the Fresnel lens is an optical element with a fine structure. Its surface is composed of a series of concentric rings, each of which can be regarded as a small convex lens or concave lens. Based on the curvature and refraction principle of the surface lens, light is refracted on the lens surface, and the curvature of the lens surface determines the refraction angle, which can achieve the focusing and diffusion of light. The side of the ring is the focusing surface. The use of a Fresnel lens enables faster focusing over a shorter path, thereby improving the light effect and clarity of the pattern. The light continues to pass through the second focusing lens 32, forming a soft image projection on the projected object. The patterned divergent light passes through the second focusing lens 32 and is collimated and focused, with the output light being parallel to each other. This ensures that the projection system proposed in this embodiment can present dynamic images of the same size on projected objects at different distances, ensuring that the projection remains clear and has soft edges at all distances, thereby enhancing the projection atmosphere.

[0036] In one example, the light homogenizer 31 includes a light guide plate and an atomized layer covering the light guide plate, and the atomized layer covers one or both sides of the light guide plate. The incident light is scattered by the nanoparticles distributed on the atomized layer, thereby converting the line light source and point light source generated by the light beam generator 2 into surface light. By changing the number of layers of the atomized layer, the scattering degree of the light with the pattern and the projection brightness can be further adjusted. It can be understood by those skilled in the art that the effect to be achieved by the present application is to emit light through the light beam generator 2 that can emit dynamic patterns, to diverge the light through the light homogenizer 31, and then to converge the light through the focusing lens 32 to improve the light efficiency and correct the light shape, thereby achieving a projection with a soft contour and accurate pattern. The above effect can be achieved by selecting light homogenizers 31 with different astigmatism effects and focusing lenses 32 with collimated focusing effects.

[0037] In order to further achieve a softer and more accurate atmosphere pattern effect, in this embodiment, the distance between the light homogenizer 31 and the light beam generator 2 is 0mm to 50mm. The distance between the focusing lens 32 and the light homogenizer 31 is 0mm to 100mm, and the focal length of the focusing lens 32 is 20mm to 300mm. The distance between the two focusing lenses 32 is 0mm to 200mm. It should be noted that those skilled in the art will know that by adjusting the focal length and distance of several lenses to achieve a soft and clear dynamic pattern projection effect, it can be adjusted according to actual conditions.

[0038] like Figure 2 As shown, the housing 1 provided in this embodiment is provided with a heat dissipation base plate 11, which is in contact with the light beam generator 2 and is made of metal. The heat generated by the heat-generating components is transferred to the housing 1 by utilizing the thermal conductivity of the metal.

[0039] In order to make the projection and the pattern emitted by the light beam generator 2 more regular and avoid deformation, the main optical axis directions of the light diffuser 31 and the focusing lens 32 are further coincident. Preferably, the central axis of the light beam generator 2 and the central axis of the light diffuser 31 are coincident with each other, and the centers of the components in the optical path are on the same axis, ensuring that when the light beam enters the light diffuser 31, the same refraction and focusing effect is generated, so that the final projected pattern will not be distorted.

[0040] The new atmosphere projection system provided by the utility model uses LED lamp beads to form a beam generator, which emits dynamic pattern light beams to meet the various needs of users. The dynamic pattern light beams emitted by the beam generator are scattered after being refracted by the light uniforming plate, so that the emitted point light source and line light source are transformed into surface light, and the edge transition of the projected pattern is soft. By setting at least two wider lenses to collimate and focus the light beam multiple times, the final projected pattern is not only more accurate in shape, but also fully collects scattered light to improve the light effect, avoid the image being too dim, and effectively improve the atmosphere and layering of the projection.

[0041] In another embodiment, if Figure 3 As shown, in order to improve the layering and softness of the projected image, two focusing lenses 32 can be set behind the light-homogenizing sheet 31. The pattern light is still in a divergent state after passing through the first focusing lens 32, and the divergent light is emitted in parallel after passing through the second focusing lens 32. Since the light beam passes through two layers of lenses, it can present a more layered pattern on the projected object. At the same time, the projection pattern is bright enough and can be directly projected onto a wall or ceiling at a certain distance without deformation. The edge transition is softer, and it has a sense of atmosphere and clarity of the pattern.

[0042] The two condenser lenses 32 in this embodiment may be the same or different lenses. The main function of the condenser lens 32 is to improve the light collection efficiency and focus the light beam, so this can still be achieved through different condenser lenses 32.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel atmosphere projection system, comprising a housing (1), wherein an optical path is formed in the housing (1), characterized in that: The optical path channel is provided with a light beam generator (2) for emitting a dynamic pattern light beam, a light homogenizer (31), and at least one condensing lens (32); the condensing lens (32) comprises one of a Fresnel lens, a plano-convex lens, and a convex lens; the light homogenizer (31) and the condensing lens (32) are sequentially arranged on the light beam path of the light beam generator (2); the pattern light emitted by the light beam generator (2) passes through the light homogenizer (31) and the condensing lens (32) in sequence to form a soft image projection.

2. The novel atmosphere projection system according to claim 1, characterized in that: The light beam generator (2) comprises a substrate (21) and a plurality of lamp beads (22) arranged on the substrate (21); the lamp beads (22) are arranged in an array so as to emit a light beam with a dynamic pattern along a light path.

3. The novel atmosphere projection system according to claim 1, characterized in that: One side of the focusing surface of the condenser lens is arranged away from the light homogenizing sheet (31).

4. The novel atmosphere projection system according to claim 1, characterized in that: The light homogenizing sheet (31) comprises a light guide plate and an atomized layer covering the light guide plate, wherein the atomized layer covers one side or both sides of the light guide plate.

5. The novel atmosphere projection system according to claim 1, characterized in that: The distance between the light homogenizer (31) and the light beam generator (2) is 0 mm to 50 mm.

6. The novel atmosphere projection system according to claim 1, characterized in that: The distance between the condensing lens (32) and the light homogenizing plate (31) is 0 mm to 100 mm, and the focal length of the condensing lens (32) is 20 mm to 300 mm.

7. The novel atmosphere projection system according to claim 1, characterized in that: A heat dissipation base plate (11) is provided on the housing (1), the heat dissipation base plate (11) is in contact with the light beam generator (2), and the heat dissipation base plate (11) is made of metal.

8. The novel atmosphere projection system according to claim 1, characterized in that: The number of the condenser lenses (32) is two.

9. The novel atmosphere projection system according to claim 1, characterized in that: The main optical axes of the light homogenizing plate (31) and the focusing lens (32) are arranged to coincide with each other.

Images