Dynamic atmosphere projection system

Abstract

The utility model provides a dynamic atmosphere projection system comprising a housing, a light path channel is formed in the housing, and a light beam generator used for emitting dynamic pattern light beams and a lens group are arranged in the light path channel; the lens group comprises at least one dodging sheet, a first collimating lens and a second collimating lens, the dodging sheet is located on a light beam path of the light beam generator, and the first collimating lens and the second collimating lens are sequentially arranged on an emergent path of the dodging sheet; light emitted by the light beam generator sequentially passes through the dodging sheet, the first collimating lens and the second collimating 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 atmosphere projection equipment, in particular to a dynamic 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, multifunctional, and low-power small-scale ambient projection lamps are increasingly accepted by people and used in family entertainment life. In this type of ambient lights, the ambient effects of the lights are as brilliant as the stars and as flowing as water waves, adding a rich and colorful interest to people's lives.

[0003] The 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 realizing irregular projection with an atmosphere. When it is necessary to project a pattern with a certain regularity and outline (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 of this structure not only projects a fixed pattern, but also requires the user to replace the pattern plate when changing the pattern, which makes the user feel poor when using it. In addition, there is a large difference between the light beam emitted by the light beam generator and the final projected image. When projecting regular dynamic images (such as flames, animals, etc.), the image will be severely deformed or blurred, and it is difficult to see the original pattern. Overly clear image projection will result in a poor atmosphere effect and fail to provide an immersive experience for users.

[0004] Although the existing LED screen light-emitting baseboard can control the lamp beads so that multiple lamp beads can display different patterns with dynamic effects, the lamp beads of this type of light-emitting baseboard have severe divergence, and the pattern light beams it produces are in the form of surface 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 view of the shortcomings of the prior art, the utility model proposes a dynamic 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, thereby improving the lighting atmosphere while retaining the original shape of the dynamic pattern.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A dynamic atmosphere projection system comprises a shell, in which an optical path channel is formed, in which a beam generator and a lens group for emitting a dynamic pattern light beam are provided; the lens group comprises at least one light homogenizer, a first collimating lens and a second collimating lens, the light homogenizer is located on the beam path of the beam generator, and the first collimating lens and the second collimating lens are sequentially arranged on the exit path of the light homogenizer; the light emitted by the beam generator passes through the light homogenizer, the first collimating lens and the second collimating 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 disposed on the substrate, and the lamp beads are arranged in an array.

[0010] A further technical solution of this embodiment is that the first collimating lens includes a Fresnel lens, and a focusing surface of the Fresnel lens is arranged away from the light homogenizing sheet.

[0011] A further technical solution of this embodiment is that the second collimating lens includes a plano-convex lens, and the light beam forms a soft image projection on the projected object through the convex surface of the plano-convex lens.

[0012] A further technical solution of this embodiment is that the light homogenizer includes a light guide plate and a mist layer covering the light guide plate, and the mist layer covers one side or both sides of the light guide plate.

[0013] A further technical solution of this embodiment is that the distance between the light homogenizer and the light beam generator is 1 mm to 50 mm.

[0014] A further technical solution of this embodiment is that the distance between the first collimating lens and the light homogenizing sheet is 1 mm to 100 mm, and the focal length of the first collimating lens is 20 mm to 300 mm.

[0015] A further technical solution of this embodiment is that the distance between the second collimating lens and the first collimating lens is 1 mm to 200 mm, and the focal length of the second collimating lens is 20 mm to 300 mm.

[0016] 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.

[0017] A further technical solution of this embodiment is that the main optical axis directions of the first collimating lens and the second collimating lens coincide with each other.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] In the dynamic atmosphere projection system provided by the utility model, the light beam emitted by the light beam generator is scattered after being refracted by the light homogenizer, 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 the first collimating lens and the second collimating lens to collimate and focus the light beam, 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

[0020] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 This is a structural schematic diagram of a dynamic atmosphere projection system of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of a dynamic atmosphere projection system of the utility model;

[0023] Figure 3 It is the front view of the light beam generator in the utility model.

[0024] Figure ID:

[0025] 1-housing; 11-heat dissipation base plate;

[0026] 2-beam generator; 21-substrate; 22-lamp bead;

[0027] 3-lens group; 31-light homogenizer; 32-first collimating lens; 33-second collimating lens. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present utility model. In addition, the terms "first", "second", "third", "fourth", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figures 1 to 3 The utility model discloses a dynamic atmosphere projection system, including a shell 1, a light path channel is formed in the shell 1, and a light beam generator 2 for emitting a dynamic pattern light beam and a lens group 3 are provided in the light path channel; the lens group 3 includes at least one light homogenizer 31, a first collimating lens 32 and a second collimating lens 33, the light homogenizer 31 is located on the light beam path of the light beam generator 2, and the first collimating lens 32 and the second collimating lens 33 are sequentially arranged on the exit path of the light homogenizer 31; the pattern light emitted by the light beam generator 2 first passes through the light homogenizer that cuts off the uneven distribution, and when passing through, a part of the pattern light deviates from the original forward direction due to the scattering effect and propagates, and the other part of the light continues to move forward and forms a soft and blurred projection pattern. Due to a large amount of light The divergence causes the projection pattern at this time to be over-magnified and overall dim, and it is impossible to fully realize the effect and atmosphere of the lighting pattern set by the user. Therefore, this embodiment arranges a first collimating lens 32 and a second collimating lens 33 behind the light homogenizer 31 to collimate and focus the light carrying the image. When the light beam passes through the first collimating lens 32, the light beam at the edge of the focused pattern is collected to make the projection light efficiency higher and the pattern performance more restored. The second collimating lens 33 further collects the scattered light to improve the light efficiency. The divergent light passes through the second collimating lens 33 and then is emitted in parallel, ensuring that the projection pattern has sufficient brightness and can be directly projected onto a wall or ceiling at a certain distance without deformation. The edge transition is softer, and the atmosphere and pattern clarity are better.

[0032] In order to reduce the size and weight of the device, the first collimating lens 32 provided in this embodiment includes a Fresnel lens, and one side of the focusing surface of the Fresnel lens is arranged away from the light homogenizer 31. The Fresnel lens is an optical element with a fine structure, and 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, the optics 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. By using a Fresnel lens, a faster focusing effect can be achieved on a shorter path. Thereby improving the light effect and clarity of the pattern.

[0033] In order to generate more diverse projection content, the light 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 drive the LED array light source board to display different and dynamic lighting effect images through the light controller software editing like a TV screen. The LED lamp beads 22 on the substrate 21 are point light sources, and the light generated by them is in a divergent state that spreads in all directions, so it is impossible to form an image on the projected object; in order to enable the divergent light generated by the light-emitting base plate 2 to project an accurate pattern after passing a certain distance, a lens group 3 is set in the optical path channel to collimate and focus the divergent pattern light.

[0034] Specifically, a lighting effect controller is also included, and the lighting effect controller is connected to the light-emitting base plate 2. At the same time, the lamp beads 22 are arranged in a rectangular array or a circular array on the base plate 21. By arranging the lamp beads 22 in a certain regular pattern on the base plate 21, the lighting effect controller can accurately control the light and color of different lamp beads 22 in the array, thereby generating light beams with different patterns, and then realizing atmosphere projection with dynamic effects through the lens group 3.

[0035] Furthermore, the second collimating lens 33 includes a plano-convex lens, and the light beam forms a soft image projection on the projected object through the convex surface of the plano-convex lens. The divergent light with a pattern passes through the plano-convex lens and is collimated and focused, and the outgoing light is parallel to each other, ensuring that the projection system proposed in this embodiment can present dynamic images of the same size on the projected object at different distances, ensuring that the projection remains clear at all distances and has a soft shape edge, thereby improving the projection atmosphere.

[0036] Furthermore, 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 and projection brightness of the light with the pattern can be further adjusted.

[0037] In order to achieve a softer and clearer atmosphere effect, in this embodiment, the distance between the light homogenizer 31 and the light beam generator 2 is 1mm to 50mm. The distance between the first collimating lens 32 and the light homogenizer 31 is 1mm to 100mm, and the focal length of the first collimating lens 32 is 20mm to 300mm. The distance between the second collimating lens 33 and the first collimating lens 32 is 1mm to 200mm, and the focal length of the second collimating lens 33 is 20mm to 300mm. It should be noted that those skilled in the art can know that it is easy to think of adjusting the focal length and distance of several lenses to achieve a soft and clear dynamic pattern projection effect.

[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 component 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, further, the main optical axis directions of the first collimating lens 32 and the second collimating lens 33 coincide with each other. Preferably, the central axis of the light beam generator 2 and the central axis of the light homogenizer 31 coincide with each other, and the centers of the components in the optical path channel are on the same circumference, ensuring that the same refraction and focusing effects are generated when the light beam enters the light homogenizer 31, so that the final projection pattern will not be distorted.

[0040] In the dynamic atmosphere projection system provided by the utility model, the light beam emitted by the light beam generator is scattered after being refracted by the light homogenizer, 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 the first collimating lens and the second collimating lens to collimate and focus the light beam, 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.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dynamic atmosphere projection system, comprising a housing (1), wherein an optical path is formed in the housing (1), characterized in that: A light beam generator (2) and a lens group (3) for emitting a dynamic pattern light beam are provided in the light path channel; The lens group (3) comprises at least one light homogenizer (31), a first collimator lens (32) and a second collimator lens (33); the light homogenizer (31) is located on the light beam path of the light beam generator (2); the first collimator lens (32) and the second collimator lens (33) are sequentially arranged on the exit path of the light homogenizer (31); The light emitted by the light beam generator (2) passes through the light homogenizing sheet (31), the first collimating lens (32) and the second collimating lens (33) in sequence to form a soft image projection.

2. The dynamic 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), wherein the lamp beads (22) are arranged in an array.

3. The dynamic atmosphere projection system according to claim 1, characterized in that: The first collimating lens (32) comprises a Fresnel lens, and one side of a focusing surface of the Fresnel lens is arranged away from the light homogenizing sheet (31).

4. The dynamic atmosphere projection system according to claim 1, characterized in that: The second collimating lens (33) comprises a plano-convex lens, and the light beam forms a soft image projection on the projected object through the convex surface of the plano-convex lens.

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

6. The dynamic atmosphere projection system according to claim 1, characterized in that: The distance between the light homogenizing sheet (31) and the light beam generator (2) is 1 mm to 50 mm.

7. The dynamic atmosphere projection system according to claim 1, characterized in that: The distance between the first collimating lens (32) and the light homogenizing sheet (31) is 1 mm to 100 mm, and the focal length of the first collimating lens (32) is 20 mm to 300 mm.

8. The dynamic atmosphere projection system according to claim 1, characterized in that: The distance between the second collimating lens (33) and the first collimating lens (32) is 1 mm to 200 mm, and the focal length of the second collimating lens (33) is 20 mm to 300 mm.

9. The dynamic atmosphere projection system according to claim 1, characterized in that: The housing (1) is provided with a heat dissipation base plate (11), 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.

10. The dynamic atmosphere projection system according to claim 1, characterized in that: The main optical axis directions of the first collimating lens (32) and the second collimating lens (33) coincide with each other.

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