CN211040646U - A kind of laser lamp projecting three-dimensional special-shaped light spot - Google Patents

Abstract

A laser lamp for projecting a three-dimensional special-shaped light spot, the exit port (21) of the laser (2) emits a collimated laser beam, passes through the light aperture a (51), and enters a scattering beam on the rotating disk (3) of the scattering mirror The lens (31) is a non-linear laser beam that is divergent when it is emitted; then it is injected into the disturbing lens (4), and after different refraction, a continuous dynamic undulating special-shaped light spot effect is finally projected, and the light spot changes rapidly. Due to the persistence of vision of the human eye, a continuous dynamic undulating special-shaped light spot effect is observed.

Description

A kind of laser lamp projecting three-dimensional special-shaped light spot

technical field

The utility model relates to the technical field of stage and landscape lamps, in particular to a laser lamp that projects three-dimensional special-shaped light spots.

Background technique

In recent years, lasers have been used in stage and landscape lighting, but the development of application functions is still relatively narrow. The stage entertainment laser special effects lamps use YAG solid-state lasers, use krypton lamps and Nd:YAG crystal rods to generate laser beams, and form monochromatic lasers through frequency conversion. Or placing a diffuser lens or a grating sheet in front of the collimated laser beam can also project the effect of irregular shaped light spots or regular graphics and text, but there are still obvious problems: the dynamic effect of the existing laser lamps is relatively simple, and the graphics are too mechanical It is not continuous enough to achieve special-shaped transformation and three-dimensional dynamic effects.

Utility model content

The purpose 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 effect on the image plane during projection.

For reaching the above-mentioned purpose, the utility model adopts the following technical solutions:

A laser lamp for projecting a three-dimensional special-shaped light spot, comprising a casing, in which a laser for emitting a collimated laser beam, a rotating disk of a diffusing mirror, and a disturbing lens are arranged in sequence;

The diffusing mirror rotating disc is located between the laser and the disturbance mirror; the diffusing mirror rotating disc is provided with several self-rotating discs for accommodating diffusing mirrors and a light-passing hole, and the diffusing mirror is a surface The uneven transparent circular lens makes the collimated laser beam in a divergent nonlinear state after passing through the scattering lens;

The disturbance lens is in the shape of a disc, and at least one side of the disturbance lens is provided with a plurality of arc-shaped convex surfaces, and a continuous smooth transition or discontinuous transition is formed between several adjacent arc-shaped convex surfaces, and an edge of the disturbance lens is also provided with a light hole;

The casing is also provided with a diffuser mirror drive mechanism, a disturbance mirror drive mechanism, a first mounting plate and a second mounting plate;

The diffusing mirror rotating disk can be rotated around its center line by the diffusing mirror driving mechanism, and the disturbing mirror can be rotated around its center line by the disturbing mirror driving mechanism;

The laser is arranged on the first mounting plate, the diffusing 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-passing hole.

As a preferred embodiment, the laser is an RGB laser.

As a preferred embodiment, the curvature radius of the arc-shaped convex surface varies continuously between 6-150 mm.

As a preferred embodiment, the arc height of the arc-shaped convex surface varies continuously between 0.05-1.5 mm.

As a preferred embodiment, the outer diameter Φ of the disturbance lens is 60mm≤Φ≤150mm.

As a preferred embodiment, the several diffusing lenses have irregular protrusions that are different from each other.

As a preferred embodiment, the distance between the diffusing lens and the disturbing lens is 3-40 mm.

As a preferred embodiment, after the light-passing hole of the diffusing mirror rotating disk and the light-passing hole of the disturbing mirror are respectively driven by the diffusing mirror driving mechanism and the disturbing mirror driving mechanism to rotate, they can be connected with the second The light-passing holes on the mounting plate are concentric.

As a preferred embodiment, the perturbation mirror drive mechanism and the diffuser mirror drive mechanism respectively include a power mechanism and a transmission mechanism, and the transmission mechanism of the perturbation mirror drives and connects the power mechanism and the perturbation mirror at the same time. The transmission mechanism drives and connects the power mechanism and the diffusing lens simultaneously.

As a preferred embodiment, it also includes a magneto-sensitive component for positioning, through which the current rotation position of the diffuser mirror rotating disk and the disturbing mirror can be sensed; the diffuser mirror rotating disk is provided with a magnet hole for installing a magnet , the transmission mechanism of the disturbance lens is provided with a magnet hole for installing a magnet.

The beneficial effects of the utility model are as follows: the laser beam has the advantages of good collimation, strong directivity and high brightness, as well as the non-imaging optical principle and the human visual persistence principle. By arranging an irregular scattering lens and a free-form surface perturbation lens in front of the laser beam, and resetting the optical interval and movement direction between the two, a laser luminaire that can project a three-dimensional irregular spot with continuous fluctuation and dynamic effect is creatively invented. Compared with the single dynamic effect of the current laser lamps, the projected graphics are too mechanical and not continuous, and the special-shaped transformation and three-dimensional dynamic effects cannot be realized.

Description of drawings

The utility model will be described in further detail below according to the accompanying drawings and embodiments.

FIG. 1 is a schematic three-dimensional state diagram of the internal structure of the laser lamp according to the embodiment of the present invention.

FIG. 2 is a partial exploded schematic view of FIG. 1 .

Fig. 3a is the projection profile of the first embodiment of the diffusing lens.

Fig. 3b is the projection profile of the second embodiment of the diffusing lens.

Fig. 3c is the projection profile of the third embodiment of the diffusing lens.

FIG. 3d is the projection profile of the fourth embodiment of the diffusing lens.

Fig. 3e is the projection profile of the fifth embodiment of the diffusing lens.

Fig. 3f is the projection profile of the sixth embodiment of the diffusing lens.

FIG. 3g is the projection profile of the seventh embodiment of the diffusing lens.

Fig. 3h is the projection profile of the eighth embodiment of the diffusing lens.

FIG. 4 is a schematic diagram of an embodiment of a disturbance mirror.

FIG. 5 is a schematic diagram 1 of the optical path of the present invention.

FIG. 6 is a schematic diagram 2 of the optical path of the present invention.

7 is a front view of the positional relationship between the diffusing mirror and the disturbing mirror in the laser output direction of the present invention.

Description of reference numerals: 1-shell; 2-laser; 21-exit port; 22-radiator; 23-first mounting plate; 3-diffuser mirror rotating disk; 31-diffuser 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-stepper motor; 7-magnetic sensitive component.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified and limited, the term "connected" should be used in a broad sense" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a fixed connection. It can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between the two elements or the interaction between the two elements. For those of ordinary skill in the art In other words, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

As shown in FIG. 1 , FIG. 2 and FIG. 7 , this embodiment provides a laser lamp, including a housing (1), and a first mounting plate (23) and a second mounting plate (5) are arranged in the housing (1). ), the first mounting plate (23) is provided with a laser (2) and a radiator (22), and the second mounting plate (5) is provided with a diffusing mirror rotating disk (3), a diffusing mirror driving mechanism, and a perturbing mirror driving mechanism , disturbing lens (4) and light aperture a (51). As can be understood by those skilled in the art, in order to better express the structural features and the positional features of each element, only the lower half of the casing (1) is shown in the figure, while the upper half of the shell is hidden.

The diffusing mirror rotating disc (3) is provided with several self-rotating discs for accommodating diffusing mirrors (31) and a light-passing hole b (32). The diffusing mirrors (31) are transparent circular mirrors with uneven surface, which The function is to make the collimated laser beam emitted by the laser (2) appear in a divergent nonlinear state after passing through the diffusing lens (13).

As shown in FIG. 4 , the disturbance lens (4) is disc-shaped, and at least one side thereof is provided with a plurality of arc-shaped convex surfaces (42), and the adjacent arc-shaped convex surfaces (42) are in a continuous smooth transition or discontinuity. In transition, a light-passing hole c (41) is also provided on the edge of the disturbing mirror (4), and the disturbing mirror (4) can rotate around its own center line after being driven by the disturbing mirror driving mechanism. The function of the perturbation lens (4) is to continuously change the refraction angle of the light emitted from the diffuser lens (31), so as to control the brightness change and shape change of the light spot after projection.

The exit port (21) of the laser (2) emits a collimated laser beam, passes through the light hole a (51), and enters a diffusing lens (31) on the diffusing mirror rotating disk (3), and when it is emitted, it is a divergent non-linear beam. The linear laser beam is then injected into the disturbing lens (4), and after different refraction, a continuous dynamic undulating special-shaped light spot effect is projected. A continuous dynamic undulating special-shaped light spot effect was observed.

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

As a preferred embodiment, the disturbance lens (4) is a linear array of arc-shaped convex surfaces (42) with a continuous and smooth transition of a plurality of optional free-form surfaces with a radius of curvature R between 6-150 mm on the transparent glass surface As a result, the height H of the curved convex surface (42) varies continuously between 0.05-1.5 mm, and the distance between the diffusing lens (31) and the disturbing lens (4) is between 3-40 mm. The beneficial effect of this technical solution is that if the radius of curvature is too small, the light deflection ability will be increased, the aberration will be increased, the similarity of the object image will be seriously changed, and the image surface will become excessively distorted and severely distorted. The plane will keep the optical distortion of the imaging system unchanged, and will not be able to achieve the effect of image plane fluctuation and distortion. In this embodiment, the distance between the diffusing lens (31) and the disturbing lens (4) is preferably 11 mm, and the distance beyond 40 mm will have an unacceptable and significant impact on the final imaging, and thus the clarity and continuity of the imaging.

As a preferred embodiment, the perturbation mirror drive mechanism and the diffuser mirror drive mechanism respectively comprise a power mechanism (6) and a transmission mechanism, and the transmission mechanism of the perturbation mirror (4) is simultaneously driven and connected to the power mechanism (6). And the disturbing lens (4), the transmission mechanism of the diffusing lens (31) drives and connects the power mechanism (6) and the diffusing lens (31) at the same time. As a person skilled in the art, it can be understood that the above-mentioned driving mechanism is relatively common in practical applications. The power mechanism (6) generally adopts a stepping motor, and the transmission mechanism can be matched with machined parts such as belts and flanges. , which will not be described in detail here.

As shown in Fig. 5 and Fig. 7 , on the light-emitting light path of the laser (2), the diffusing mirror rotating disk (3) corresponds to a certain transparent circular diffusing lens (31) with uneven surface, and the disturbing lens ( 4) Corresponding to the area of the non-light hole c (41); the collimated laser beam emitted by the laser (2) enters the diffuser lens (31) after divergence, and then enters the disturbing lens (4), passing through the unevenness on its surface. After the uneven glass material is refracted, an undulating special-shaped light spot effect is projected. After disturbing the rotation of the lens (4), a continuous special-shaped light spot is formed, and at the same time, due to the rapid bright and dark change of the light spot, the visual persistence phenomenon of the human eye is caused, so that the human eye observes a continuous dynamic undulating special-shaped light spot effect.

As shown in FIG. 6, on the light-emitting path of the laser (2), the diffuser mirror rotating disk (3) corresponds to the light-passing hole b (32), and the disturbing mirror (4) corresponds to the light-passing hole c (41) ; The collimated laser beam emitted by the laser (2) is directly transmitted out, and the original collimated laser beam spot is still irradiated on the building.

As a preferred embodiment, the outer diameter Φ of the disturbing lens (4) is 60mm≤Φ≤150mm. The beneficial effect of this technical solution is that, because the angle of the collimated laser beam is very small, the beam angle after passing through the scattering lens (31) It is still not big. At the same time, the disturbing lens is rotating, and it is not suitable for occupying too much volume of the lamp, so it is most suitable under the scheme size set in this scheme.

As a preferred embodiment, several diffusing lenses have irregular protrusions that are different from each other. Here, some specific examples adopted by our company are described in the drawings:

1- As shown in Figure 3a, the projection profile of the diffuser lens (31) is a diamond body;

2- As shown in Figure 3b, the projection profile of the diffusing lens (31) can be a wood grain strip surface;

3- As shown in Figure 3c, the projected contour of the diffusing lens (31) can be a quadrangular pyramid;

4- As shown in Figure 3d, the projection profile of the diffuser lens (31) can be a fine frosted surface;

5- As shown in Figure 3e, the projected contour of the diffusing lens (31) can be a snow pattern surface;

6- As shown in Figure 3f, the projection profile of the diffuser lens (31) can be a continuous free-form surface;

7- As shown in Figure 3g, the projection profile of the diffuser lens (31) can be a rough matte surface;

8- As shown in Figure 3g, the projection profile of the diffuser lens (31) can be a discontinuous free-form surface.

The beneficial effect of this technical solution is that the collimated laser beam emitted from the laser (2) can pass through the diffusing lens (31) of different embodiments, so as to achieve different nonlinear effects after divergence, and the shape of the light spot is also irregular At the same time, the diffusing mirror rotating disk (3) can rotate around its own center line after being driven by the diffusing mirror driving mechanism. At this time, the shape of the emitted light will be continuously switched and changed with the corresponding diffusing mirrors switched on the optical path. .

On the optical path, different stationary diffuser mirrors (31) and rotating perturbation mirrors (4) will form different combinations of outgoing light rays; at the same time, the diffuser mirrors (31) are located in the self-rotating disc of the diffuser mirror rotating disc (3), so the scattering The lens (31) can also rotate itself under the action of the scattering drive mechanism, and the rotating scattering lens (31) combined with the automatic disturbing lens will produce another continuous dynamic projection effect.

As a preferred embodiment, as shown in FIG. 1 and the laser light fixture described in the present utility model, it further includes a magneto-sensitive component (7) for positioning, and a magnet hole for installing a magnet is provided on the diffusing mirror rotating disk (3), The transmission mechanism of the disturbing lens (4) is provided with a magnet hole for installing a magnet; the current rotational position of the diffusing mirror rotating disk (3) and the disturbing lens (4) can be sensed through the magnetic sensitive component (7), thereby realizing positioning and precise control The rotation angle and direction of the diffuser mirror rotating disk (3) and the perturbation mirror (4). The beneficial effect of this technical solution is that the best control effect can be achieved by utilizing the limited structural space and the cost of components. As a person skilled in the industry can understand, the control technology of magnetic sensitivity and magnet is widely used in stage and landscape lighting, including the moving head in X and Y directions of moving head lights. process in detail.

In the description herein, it should be understood that the terms "upper", "lower", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of description and simplified operation, Rather than indicating or implying that the indicated device or element must have a particular orientation, be constructed and operate in a particular orientation, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

In the description of this specification, reference to the description of the terms "an embodiment", "example" etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (10)

1. A laser light fixture for projecting a three-dimensional special-shaped light spot, characterized in that it comprises a casing, and the casing is sequentially provided with a laser for emitting a collimated laser beam, a diffusing mirror rotating disk, and a disturbance mirror; The diffusing mirror rotating disc is located between the laser and the disturbance mirror; the diffusing mirror rotating disc is provided with several self-rotating discs for accommodating diffusing mirrors and a light-passing hole, and the diffusing mirror is a surface The uneven transparent circular lens makes the collimated laser beam in a divergent nonlinear state after passing through the scattering lens; The disturbance lens is in the shape of a disc, and at least one side of the disturbance lens is provided with a plurality of arc-shaped convex surfaces, and a continuous smooth transition or discontinuous transition is formed between several adjacent arc-shaped convex surfaces, and an edge of the disturbance lens is also provided with a light hole; The casing is also provided with a diffuser mirror drive mechanism, a disturbance mirror drive mechanism, a first mounting plate and a second mounting plate; The diffusing mirror rotating disk can be rotated around its center line by the diffusing mirror driving mechanism, and the disturbing mirror can be rotated around its center line by the disturbing mirror driving mechanism; The laser is arranged on the first mounting plate, the diffusing 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-passing hole. 2 . The laser lamp of claim 1 , wherein the laser is an RGB laser. 3 . 3 . The laser lamp of claim 1 , wherein the curvature radius of the arc-shaped convex surface varies continuously between 6-150 mm. 4 . 4 . The laser lamp projecting a three-dimensional special-shaped light spot according to claim 1 , wherein the arc height of the arc-shaped convex surface continuously changes between 0.05-1.5 mm. 5 . 5 . The laser lamp of claim 1 , wherein the outer diameter Φ of the disturbance lens is 60mm≤Φ≤150mm. 6 . 6 . The laser lamp for projecting three-dimensional special-shaped light spots according to claim 1 , wherein the plurality of diffusing lenses have irregular protrusions that are different from each other. 7 . The laser lamp of claim 1 , wherein the distance between the diffusing lens and the disturbing lens is between 3-40 mm. 8 . 8 . The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1 , wherein the light-passing hole of the diffusing mirror rotating disk and the light-passing hole of the disturbing mirror pass through the diffusing mirror driving mechanism and the disturbing mirror, respectively. 9 . After the mirror driving mechanism is driven to rotate, it can be co-centered with the light-passing hole on the second mounting plate. 9 . The laser lamp for projecting a three-dimensional special-shaped light spot according to claim 1 , wherein the perturbation mirror driving mechanism and the diffuser mirror driving mechanism respectively comprise a power mechanism and a transmission mechanism, and the transmission mechanism of the perturbation mirror. 10 . The mechanism drives and connects the power mechanism and the disturbing lens simultaneously, and the transmission mechanism of the diffusing lens drives and connects the power mechanism and the diffusing lens simultaneously. 10. A laser lamp for projecting a three-dimensional special-shaped light spot according to claim 9, characterized in that it further comprises a magnetic-sensitive component for positioning, and the magnetic-sensitive component can sense the current rotational position of the rotating disk of the diffuser mirror and the disturbance mirror and a magnet hole for installing a magnet is arranged on the rotating disk of the diffusing mirror, and a magnet hole for installing a magnet is arranged on the transmission mechanism of the disturbing mirror.

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