A laser lamp that projects three-dimensional special-shaped light spots

Abstract

A laser lamp for projecting a three-dimensional irregular light spot, wherein the laser (2) emits a collimated laser beam from an outlet (21), passes through a light hole a (51), and enters a scattering lens (31) on a scattering mirror rotating disk (3), and is emitted as a divergent nonlinear laser beam; and then enters a disturbance lens (4), and finally projects a continuous dynamic irregular light spot effect in an undulating shape after undergoing different refractions. The rapid brightness and darkness changes of the light spot can be observed as a continuous dynamic irregular light spot effect in an undulating shape due to the visual persistence phenomenon of the human eye.

Description

Technical Field

[0001] The invention relates to the technical field of stage and landscape lamps, and in particular to a laser lamp that projects a three-dimensional special-shaped light spot. Background Art

[0002] In recent years, lasers have begun to be used in stage and landscape lighting, but the development of application functions is still relatively narrow. Stage entertainment laser special effects lighting uses YAG solid lasers, krypton lamps and Nd: YAG crystal rods to generate laser beams, which form monochromatic lasers through frequency conversion, and use computer programming to control the galvanometer to produce high-speed deflection, thereby forming beautiful text or graphics. Alternatively, placing a scattering lens or grating sheet at the front end of the collimated laser beam can also project irregular shaped spots or regular graphics and text effects, but there are still obvious problems: the dynamic effects of existing laser lamps are relatively simple, the graphics are too mechanical and not continuous enough, and it is impossible to achieve special-shaped transformations and three-dimensional dynamic effects. Summary of the invention

[0003] The object of the present invention is to provide a laser lamp for projecting a three-dimensional special-shaped light spot, which can realize special-shaped transformation and three-dimensional dynamic effects on the image plane during projection.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A laser lamp for projecting a three-dimensional special-shaped light spot comprises a shell, wherein a laser for emitting a collimated laser beam, a scattering mirror rotating disk, and a disturbance lens are sequentially arranged in the shell;

[0006] The scattering mirror rotating disk is located between the laser and the disturbance lens; the scattering mirror rotating disk is provided with a plurality of self-rotating disks and a light-through hole for accommodating the scattering lenses, and the scattering lenses are transparent circular lenses with uneven surfaces, so that the collimated laser beam is in a divergent nonlinear state after passing through the scattering lenses;

[0007] The disturbance lens is in the shape of a disk, and at least one side thereof is provided with a plurality of arc-shaped convex surfaces, and a plurality of adjacent arc-shaped convex surfaces are provided with a continuous smooth transition or a discontinuous transition, and a light-through hole is also provided on the edge of the disturbance lens;

[0008] The housing is also provided with a scattering mirror driving mechanism, a perturbation mirror driving mechanism, a first mounting plate and a second mounting plate;

[0009] The scattering mirror rotating disk can rotate around its center line through the scattering mirror driving mechanism, and the disturbance mirror can rotate around its center line through the disturbance mirror driving mechanism;

[0010] The laser is arranged on the first mounting plate, the scattering mirror driving mechanism and the perturbation mirror driving mechanism are arranged on the second mounting plate, and the second mounting plate is provided with a light-through hole.

[0011] As a preferred implementation, the laser is an RGB laser.

[0012] As a preferred implementation, the radius of curvature of the arc-shaped convex surface varies continuously between 6 and 150 mm.

[0013] As a preferred implementation, the arc height of the arc-shaped convex surface varies continuously between 0.05-1.5 mm.

[0014] As a preferred implementation, the outer diameter Φ of the disturbance lens is 60mm≤Φ≤150mm.

[0015] As a preferred implementation, the plurality of scattering lenses have irregular protrusions that are different from each other.

[0016] As a preferred implementation, the distance between the scattering lens and the disturbance lens is between 3-40 mm.

[0017] As a preferred embodiment, the light hole of the scattering mirror rotating disk and the light hole of the disturbance mirror are respectively rotated by the scattering mirror driving mechanism and the disturbance mirror driving mechanism, and can be co-centerline with the light hole on the second mounting plate.

[0018] As a preferred embodiment, the perturbation mirror driving mechanism and the scattering mirror driving mechanism respectively include a power mechanism and a transmission mechanism, the transmission mechanism of the perturbation mirror simultaneously transmits and connects the power mechanism and the perturbation mirror, and the transmission mechanism of the scattering mirror simultaneously transmits and connects the power mechanism and the scattering lens.

[0019] As a preferred embodiment, it also includes a magnetically sensitive component for positioning, through which the current rotational position of the scattering mirror rotating disk and the disturbance lens can be sensed; the scattering mirror rotating disk is provided with a magnet hole for installing a magnet, and the transmission mechanism of the disturbance lens is provided with a magnet hole for installing a magnet.

[0020] The beneficial effects of the present invention are: using the optical properties of laser beams such as good collimation, strong directionality and high brightness, and the principle of non-imaging optics and the principle of human visual persistence. By setting an irregular scattering lens and a free-form surface disturbance lens in front of the laser beam and resetting the optical interval and movement direction between the two, a laser lamp capable of projecting a three-dimensional irregular light spot with continuous undulating dynamic effects is creatively invented. Compared with the current laser lamps with single dynamic effects, overly mechanical and discontinuous projection patterns, and unable to achieve irregular transformation and three-dimensional dynamic effects, it has obvious advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the three-dimensional state of the internal structure of the laser lamp according to an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Schematic diagram of local decomposition.

[0024] Figure 3a This is the projection profile of the first embodiment of the scattering lens.

[0025] Figure 3b This is the projection profile of the second embodiment of the scattering lens.

[0026] Figure 3c This is the projection profile of the third embodiment of the scattering lens.

[0027] Figure 3d This is the projection profile of the fourth embodiment of the scattering lens.

[0028] Figure 3e This is the projection profile of the fifth embodiment of the scattering lens.

[0029] Figure 3f This is the projection profile of the sixth embodiment of the scattering lens.

[0030] Figure 3g This is the projection profile of the seventh embodiment of the scattering lens.

[0031] Figure 3h This is the projection profile of the eighth embodiment of the scattering lens.

[0032] Figure 4 Schematic diagram of a disturbance lens embodiment.

[0033] Figure 5 The optical path of the present invention is shown in FIG. Figure 1 .

[0034] Figure 6 The optical path of the present invention is shown in FIG. Figure 2 .

[0035] Figure 7 This is a front view of the positional relationship between the scattering lens and the disturbance lens of the present invention in the laser emitting direction.

[0036] Explanation of the accompanying drawings: 1-housing; 2-laser; 21-exit port; 22-heat sink; 23-first mounting plate; 3-scattering mirror rotating disk; 31-scattering lens; 32-light hole b; 4-disturbance lens; 41-light hole c; 42-arc convex surface; 43-center fixing hole; 5-second mounting plate; 51-light hole a; 6-stepping motor; 7-magnetic sensitive component. DETAILED DESCRIPTION

[0037] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the term "connected" should be understood in a broad sense, and "fixed" 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0040] like Figure 1 , Figure 2 and Figure 7As shown, this embodiment provides a laser lamp, including a housing (1), wherein a first mounting plate (23) and a second mounting plate (5) are provided in the housing (1), a laser (2) and a heat sink (22) are provided on the first mounting plate (23), and a scattering mirror rotating disk (3), a scattering mirror driving mechanism, a perturbation mirror driving mechanism, a perturbation mirror (4) and a light hole a (51) are provided on the second mounting plate (5). As can be understood by those skilled in the art, in order to better express the structural features and the positional features of each component, only the lower half of the housing (1) is shown in the figure, while the upper half of the housing is hidden.

[0041] A plurality of self-rotating disks for accommodating scattering lenses (31) and a light-through hole b (32) are provided on the scattering mirror rotating disk (3). The scattering lens (31) is a transparent circular lens with an uneven surface, and its function is to make the collimated laser beam emitted by the laser (2) present a divergent nonlinear state after passing through the scattering lens (13).

[0042] As attached Figure 4 As shown, the disturbance lens (4) is in the shape of a disk, and at least one side thereof is provided with a plurality of arc-shaped convex surfaces (42), and a plurality of adjacent arc-shaped convex surfaces (42) are in a continuous smooth transition or a discontinuous transition, and a light-through hole c (41) is also provided on the edge of the disturbance lens (4). The disturbance lens (4) can rotate around its own center line after being driven by the disturbance lens driving mechanism. The function of the disturbance lens (4) is to continuously change the refraction angle of the light emitted from the scattering lens (31), and control the brightness change and shape change of the light spot after projection.

[0043] The laser (2) emits a collimated laser beam through an aperture a (51) and enters a scattering lens (31) on a scattering mirror rotating disk (3). The beam is emitted as a divergent nonlinear laser beam. The beam is then emitted into a disturbance lens (4) and, after different refractions, projects a continuous dynamic undulating shaped light spot effect. The rapid brightness change of the light spot can be observed as a continuous dynamic undulating shaped light spot effect due to the persistence of vision of the human eye.

[0044] As a preferred embodiment, the color of the collimated light beam emitted by the laser can be a single color or a mixture of the three primary colors RGB. The beneficial effect of this technical solution is that the color effect of the laser collimated light beam can be enriched.

[0045] As a preferred embodiment, the disturbance lens (4) is formed on a transparent glass surface by a linear array of arc-shaped convex surfaces (42) with a plurality of curvature radii R between 6 and 150 mm, which are free-form surfaces with continuous and smooth transitions. The height H of the arc-shaped convex surfaces (42) varies continuously between 0.05 and 1.5 mm, and the distance between the scattering lens (31) and the disturbance lens (4) is between 3 and 40 mm. The beneficial effect of this technical solution is that a too small curvature radius will increase the light deflection ability, increase the aberration, seriously change the similarity between the object and the image, and make the image plane excessively distorted and seriously distorted, while a too large R value tends to be flat, which will cause the optical distortion of the imaging system to remain unchanged, and the effect of image plane fluctuation distortion will not be achieved. In this embodiment, the distance between the scattering lens (31) and the disturbance lens (4) is preferably 11 mm. Exceeding the interval of 40 mm will have an unacceptable and significant impact on the final imaging, thereby affecting the clarity and continuity of the imaging.

[0046] As a preferred embodiment, the perturbation mirror driving mechanism and the scattering mirror driving mechanism respectively include a power mechanism (6) and a transmission mechanism, the transmission mechanism of the perturbation mirror (4) is simultaneously connected to the power mechanism (6) and the perturbation mirror (4), and the transmission mechanism of the scattering mirror (31) is simultaneously connected to the power mechanism (6) and the scattering mirror (31). As a person skilled in the art in this field, it can be understood that the driving mechanism is relatively common in practical applications, the power mechanism (6) generally adopts a stepping motor, and the transmission mechanism adopts machined parts such as belts and flanges, which will not be described in detail here.

[0047] As attached Figure 5 and Figure 7 As shown, in the light path of the laser (2), the scattering mirror rotating disk (3) corresponds to a certain transparent circular scattering lens (31) with an uneven surface, and the disturbance lens (4) corresponds to the non-light-through hole c (41) area; the collimated laser beam emitted by the laser (2) enters the scattering lens (31) and after being diverged, enters the disturbance lens (4), and after being refracted by the uneven glass material on its surface, an undulating shaped light spot effect is projected. After the disturbance lens (4) rotates, a continuous shaped light spot is formed, and at the same time, the rapid brightness change of the light spot causes the visual persistence phenomenon of the human eye, so that the human eye observes a continuous dynamic undulating shaped light spot effect.

[0048] As attached Figure 6 As shown, in the light path of the laser (2), the scattering mirror rotating disk (3) corresponds to the light hole b (32), and the disturbance lens (4) corresponds to the light hole c (41); the collimated laser beam emitted by the laser (2) is directly transmitted out and irradiates the building with the original collimated laser beam point.

[0049] As a preferred embodiment, the outer diameter Φ of the disturbance lens (4) is 60mm≤Φ≤150mm. The beneficial effect of this technical solution is that, because the angle of the precision laser beam is very small, the light-emitting angle is still not large after passing through the scattering lens (31). At the same time, the disturbance lens is rotatable and the area occupied by the lamp body is not too large. Therefore, it is most suitable under the solution size set in this solution.

[0050] As a preferred embodiment, a plurality of scattering lenses have different irregular protrusions. Here, some specific embodiments adopted by our company are described with drawings:

[0051] 1-As attached Figure 3a As shown, the projection profile of the scattering lens (31) is a diamond body;

[0052] 2-As attached Figure 3b As shown, the projection profile of the scattering lens (31) may be a wood grain strip surface;

[0053] 3-As attached Figure 3c As shown, the projection profile of the scattering lens (31) may be a quadrilateral pyramid;

[0054] 4-As attached Figure 3d As shown, the projection profile of the scattering lens (31) may be a finely frosted surface;

[0055] 5-As attached Figure 3e As shown, the projection profile of the scattering lens (31) may be a snowflake pattern surface;

[0056] 6-As attached Figure 3f As shown, the projection profile of the scattering lens (31) can be a continuous free-form surface;

[0057] 7-As attached Figure 3g As shown, the projection profile of the scattering lens (31) may be a coarse frosted surface;

[0058] 8-As attached Figure 3h As shown, the projection profile of the scattering lens (31) can be a discontinuous free-form surface.

[0059] The beneficial effect of this technical solution is that the collimated laser beam emitted from the laser (2) can pass through the scattering lenses (31) of different embodiments, thereby achieving different nonlinear effects after divergence, and its spot shape is also irregular; at the same time, the scattering mirror rotating disk (3) can rotate around its own center line after being driven by the scattering mirror driving mechanism, and the shape of the emitted light will continuously switch and change with the scattering lenses switched on the optical path.

[0060] In the optical path, different stationary scattering lenses (31) in combination with the self-rotating disturbance lenses (4) will form different combinations of emitted light rays; at the same time, the scattering lenses (31) are located in the self-rotating disk of the scattering mirror rotating disk (3), so the scattering lenses (31) can also generate self-rotation under the action of the scattering driving mechanism, and the self-rotating scattering lenses (31) in combination with the automatic disturbance lenses can generate another continuous dynamic projection effect.

[0061] As a preferred embodiment, as shown in the attached Figure 1 The laser lamp described in the present invention also includes a magnetic sensitive component (7) for positioning, a magnet hole for mounting a magnet is provided on the scattering mirror rotating disk (3), and a magnet hole for mounting a magnet is provided on the transmission mechanism of the disturbance lens (4); the current rotational position of the scattering mirror rotating disk (3) and the disturbance lens (4) can be sensed by the magnetic sensitive component (7), so as to realize positioning and accurate control of the rotation angle and direction of the scattering mirror rotating disk (3) and the disturbance lens (4). The beneficial effect of this technical solution is that the best control effect is achieved by utilizing limited structural space and component costs. As technicians in this industry can understand, the control technology of magnetic sensitivity and magnets is widely used in stage and landscape lamps, including the shaking of the head light in the X and Y directions, which also uses the same control technology, and the control process will not be described in detail here.

[0062] In the description herein, it should be understood that the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0063] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0064] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0065] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A laser lamp that projects a three-dimensional special-shaped light spot, characterized in that: It comprises a shell, in which a laser for emitting a collimated laser beam, a scattering mirror rotating disk, and a disturbance lens are sequentially arranged; The scattering mirror rotating disk is located between the laser and the disturbance lens; the scattering mirror rotating disk is provided with a plurality of self-rotating disks and a light-through hole for accommodating the scattering lenses, and the scattering lenses are transparent circular lenses with uneven surfaces, so that the collimated laser beam is in a divergent nonlinear state after passing through the scattering lenses; The disturbance lens is in the shape of a disk, and at least one side thereof is provided with a plurality of arc-shaped convex surfaces, and a plurality of adjacent arc-shaped convex surfaces are provided with a continuous smooth transition or a discontinuous transition, and a light-through hole is also provided on the edge of the disturbance lens; The housing is also provided with a scattering mirror driving mechanism, a perturbation mirror driving mechanism, a first mounting plate and a second mounting plate; The scattering mirror rotating disk can rotate around its center line through the scattering mirror driving mechanism, and the disturbance mirror can rotate around its center line through the disturbance mirror driving mechanism; The laser is arranged on the first mounting plate, the scattering mirror driving mechanism and the perturbation mirror driving mechanism are arranged on the second mounting plate, and the second mounting plate is provided with a light-through hole.

2. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The laser is an RGB laser.

3. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The curvature radius of the arc-shaped convex surface varies continuously between 6 and 150 mm.

4. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The arc height of the arc-shaped convex surface varies continuously between 0.05-1.5 mm.

5. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The outer diameter Φ of the disturbance lens is 60mm≤Φ≤150mm.

6. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The plurality of scattering lenses in the rotating disk for accommodating the scattering lenses have different irregular protrusions.

7. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The distance between the scattering lens and the disturbance lens is between 3-40 mm.

8. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: After the light-through hole of the scattering mirror rotating disk and the light-through hole of the disturbance mirror are rotated by the scattering mirror driving mechanism and the disturbance mirror driving mechanism respectively, they can be co-centered with the light-through hole on the second mounting plate.

9. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1, characterized in that: The perturbation mirror driving mechanism and the scattering mirror driving mechanism respectively include a power mechanism and a transmission mechanism. The transmission mechanism of the perturbation mirror simultaneously transmits and connects the power mechanism and the perturbation mirror, and the transmission mechanism of the scattering mirror simultaneously transmits and connects the power mechanism and the scattering mirror.

10. The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 9, characterized in that: It also includes a magnetically sensitive component for positioning, which senses the current rotational position of the scattering mirror rotating disk and the disturbance lens through the magnetically sensitive component; the scattering mirror rotating disk is provided with a magnet hole for installing a magnet, and the transmission mechanism of the disturbance lens is provided with a magnet hole for installing a magnet.

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