WO2021063138A1

WO2021063138A1 - Stage light system having beam divergence angle varying with voltage

Info

Publication number: WO2021063138A1
Application number: PCT/CN2020/111822
Authority: WO
Inventors: 蒋伟楷
Original assignee: 广州市浩洋电子股份有限公司
Priority date: 2019-09-30
Filing date: 2020-08-27
Publication date: 2021-04-08
Also published as: CN210831784U

Abstract

A stage light system having a beam divergence angle varying with voltage. The system comprises a light source (100), a condenser component (200) for converging light emitted by the light source (100), and a liquid crystal light modulation glass component (300) disposed in a direction of light emission of the light source (100). A beam divergence angle of the liquid crystal light modulation glass component (300) gradually increases or decreases as an applied voltage increases. In the stage light system having a beam divergence angle varying with voltage, different voltages can be applied to the liquid crystal light modulation glass component (300), so as to change the direction of arrangement of liquid crystal molecules in the liquid crystal light modulation glass component (300), thereby changing the divergence angle of a light beam passing therethrough. The invention enables stage light patterns or the size of light spots to be adjusted without having to reserve space in a stage light for a focusing lens (410) and a magnifying glass component (440), thus saving the space required for the movement of the focusing lens and the magnifying glass component, and reducing the size of the stage light.

Description

Stage light system with light beam divergence angle changing with voltage

Technical field

The utility model relates to the technical field of stage lights, and more specifically, to a stage light system whose beam divergence angle changes with voltage.

Background technique

Stage lights are widely used in various places such as performances, exhibitions, evening parties, bars, etc., to change the color and tone of the environment or directly project various patterns to adjust the atmosphere and set off the focus of the audience. The current stage lights adjust the projected pattern or spot size by moving the focusing lens or magnifying glass. However, the movement of the focusing lens or magnifying glass requires a larger space, which is compared with the increasingly compact stage lights. In other words, it is quite wasteful and is not conducive to the miniaturization of the stage light structure.

technical problem

In order to overcome at least one of the above-mentioned drawbacks in the prior art, the utility model provides a stage light system whose beam divergence angle changes with voltage. It does not need to set or move a focusing lens or a magnifying glass to realize the pattern or spot size of the stage light. The adjustment.

Technical solutions

In order to solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a stage light system whose beam divergence angle changes with voltage, including a light source, a condensing element that converges the light emitted by the light source, and a light source arranged on the light source. Direction of the liquid crystal dimming glass, the beam divergence angle of the liquid crystal dimming glass gradually decreases or increases as the applied voltage increases.

The stage light system whose beam divergence angle changes with voltage can change the arrangement direction of the liquid crystal molecules in the liquid crystal dimming glass by applying different voltages to the liquid crystal dimming glass, thereby changing the divergence angle of the light beam passing through it. To realize the adjustment of the stage light pattern or the size of the light spot, there is no need to reserve a space in the stage light to set a focusing lens or a magnifying glass, or it can effectively reduce its activity space and reduce the volume of the stage light.

Further, the light source is one of LED lights, laser lights, and bubble lights.

Further, the condensing element is one of a reflector, a light guide, a total internal reflection mirror, and a plano-convex mirror. The reflective cup is also called a reflective bowl. The light source is arranged at the bottom of the bowl, and the light is collected by the inner side wall of the reflective bowl; the light guide is generally a transparent cylindrical body with uniform thickness and is generally close to the light source. The light beam enters from one end of the light guide body, and then exits from the other end after multiple reflections; the total internal reflection mirror is roughly a solid hemisphere, usually close to the light source, and the light beam enters from the narrower end and passes through After multiple reflections of the inner wall, it is emitted from the wider end; the plano-convex lens is a smooth and convex lens, and the convex side is located on the side away from the light source, and the divergence angle of the beam is changed by refraction. Zoom out.

Further, there are multiple numbers of the light source and the liquid crystal dimming glass, and they correspond one to one. The liquid crystal dimming glass can be individually dimmed for each light source, so as to realize the change of the divergence angle of the overall light beam. On the one hand, it reduces the high temperature resistance requirement for a single liquid crystal dimming glass, and on the other hand, The individual dimming of the light source is easier to control, and the dimming method can also be more diversified.

Further, it also includes the atomizing mirror arranged on the light emitting side of the liquid crystal dimming glass. The atomizing mirror atomizes the light emitted from the liquid crystal dimming glass, so that the emitted light is softer.

Further, it further includes an effect component and a focusing lens arranged between the light source and the liquid crystal dimming glass, and a light emitting lens arranged on a side of the liquid crystal dimming glass away from the light source. The focusing lens can realize the focusing of the light beam and make the projected chart or light spot clearer.

Further, it further includes a lens assembly arranged between the light source and the light-emitting lens, and the lens assembly includes at least one of a fly-eye lens, a prism, an atomizing lens, and a magnifying glass. Perform homogenization, spectroscopy, atomization and amplification respectively.

Further, the effect component includes at least one of a heat insulation film, a strobe film, a CMY unit, a color plate, a fire plate, a pattern plate, an aperture, and a cutter. Respectively make the beam produce the effects of reducing heat, stroboscopic, linear dyeing, direct dyeing, dynamic flame, projecting specific patterns, circular cutting, and multilateral cutting.

Further, the liquid crystal dimming glass includes two glass plates, liquid crystal molecules located between the two glass plates, and a driving circuit board for applying voltage to the liquid crystal molecules.

Further, the liquid crystal dimming glass is in an atomized state or a transparent state when the power is off. That is, the liquid crystal molecules of the liquid crystal dimming glass are scattered when no voltage is applied, so that the liquid crystal dimming glass can be used as an atomizing sheet in a low power consumption state; or the liquid crystal dimming glass The liquid crystal molecules are in a regular state and high permeability when no voltage is applied, so that the liquid crystal dimming glass can be used as a transparent lens in a low power consumption state.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of the first embodiment of the stage light system in which the beam divergence angle of the present invention changes with the voltage and the first voltage is applied.

2 is a schematic diagram of the structure of the first embodiment of the stage light system applying the second voltage with the light beam divergence angle changing with the voltage of the present invention.

Fig. 3 is a schematic structural view of a second embodiment of the stage light system in which the beam divergence angle of the present invention changes with voltage.

Fig. 4 is a schematic structural diagram of a third embodiment of a stage light system in which the beam divergence angle of the utility model changes with voltage.

Figure 5 is a schematic diagram of the structure of the liquid crystal dimming glass of the present invention.

In the picture: 100, light source; 200, condensing element; 300, liquid crystal dimming glass; 310, glass plate; 320, liquid crystal molecules; 330, fixed frame; 340, drive circuit board; 410, focusing lens; 420, prism 430, atomizing mirror; 440, magnifying glass; 450, light-emitting lens; 510, CMY unit; 520, fire plate; 530, pattern plate; 540, cutter.

Embodiments of the present invention

The attached drawings are only for illustrative purposes and cannot be understood as a limitation of this patent; in order to better illustrate this embodiment, some parts of the attached drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; For the personnel, it is understandable that some well-known structures in the drawings and their descriptions may be omitted. The positional relationship described in the drawings is only for illustrative purposes and cannot be understood as a limitation of the patent.

Figures 1 to 2 are the first embodiment of the present invention. It provides a stage light system whose beam divergence angle varies with voltage. The stage light system includes a light source 100 and a condensing element 200 that converges the light emitted by the light source 100. And the liquid crystal dimming glass 300 arranged in the light emitting direction of the light source 100, the light beam divergence angle of the liquid crystal dimming glass 300 gradually decreases or increases as the applied voltage increases.

The stage light system whose beam divergence angle varies with voltage can change the arrangement direction of the liquid crystal molecules 320 in the liquid crystal dimming glass 300 by applying different voltages to the liquid crystal dimming glass 300, thereby changing the light beam passing through it. The divergence angle realizes the adjustment of the stage light pattern or the size of the light spot, and there is no need to reserve a space for the focusing lens 410 and the magnifying glass 440 in the stage light, or it can effectively reduce the activity space and reduce the volume of the stage light.

Using the liquid crystal dimming glass 300 to apply different voltages to change the beam divergence angle is a prior art, which can be purchased on the market, and will not be repeated in this application. In this embodiment, the liquid crystal dimming glass 300 adopts the LVS3-650617 model product of LENVECTOR Company, or can adopt the dimming product of Zhongzhi Tonghui Technology Co., Ltd.

Optionally, the beam divergence angle of the liquid crystal dimming glass 300 gradually decreases as the applied voltage increases. FIG. 1 is the beam divergence angle when the liquid crystal dimming glass 300 is applied with a voltage of 10V, and FIG. 2 is the The light beam divergence angle of the liquid crystal dimming glass 300 when a voltage of 30V is applied.

In a preferred embodiment of the present invention, the light source 100 is one of an LED lamp, a laser lamp, and a bubble lamp. The LED lamp may be a monochromatic lamp or a multi-color lamp.

In a preferred embodiment of the present invention, the condensing element 200 is one of a reflector, a light guide, a total internal reflection mirror, and a plano-convex mirror. The reflector cup is also called a reflector bowl. The light source 100 is arranged at the bottom of the bowl and uses the inner side wall of the reflector bowl to condense light; the light guide is generally a transparent cylinder with uniform thickness and is generally close to the light source 100. The light beam enters from one end and is emitted from the other end after multiple reflections in the light guide; the total internal reflection mirror is roughly a solid hemisphere, generally close to the light source 100, and the light beam enters from the narrower end , After multiple reflections on the inner side wall, it is emitted from the wider end; the plano-convex lens is a lens with a smooth surface and a convex surface, and the convex side is located on the side away from the light source 100. The divergence angle of the beam is reduced. As shown in Fig. 1, in the first embodiment of the present invention, the concentrating element 200 is a reflector cup, as shown in Fig. 3, in the second embodiment of the present invention, the concentrating element 200 is total internal reflection. mirror.

As shown in FIG. 3, which is the second embodiment of the present invention, the number of the light source 100 and the number of the liquid crystal dimming glass 300 are multiple, and they correspond to one another. The liquid crystal dimming glass 300 can adjust the light of each light source 100 individually, thereby realizing the change of the divergence angle of the overall light beam. On the one hand, it reduces the high temperature resistance requirement of the single liquid crystal dimming glass 300, and on the other hand Individual dimming of each of the light sources 100 is easier to control, and the dimming method can also be more diversified.

In a preferred embodiment of the present invention, it further includes the atomizing mirror 430 arranged on the light emitting side of the liquid crystal dimming glass 300. The atomizing mirror 430 atomizes the light emitted from the liquid crystal dimming glass 300 to make the emitted light softer. In this implementation, the number of the atomization mirror 430 is one, and the lights emitted by the multiple light sources 100 are all emitted from one atomization mirror 430. In other embodiments, the atomization mirror 430 The number may also be multiple, corresponding to the light sources 100 one-to-one, and the light of each light source 100 is respectively atomized.

As shown in FIG. 4, the third embodiment of the present invention further includes an effect component and a focusing lens 410 arranged between the light source 100 and the liquid crystal dimming glass 300, and the liquid crystal dimming glass 300 is away from the light-emitting lens 450 on the side of the light source 100. The focusing lens 410 can realize the focusing of the light beam, so that the projected chart or light spot is clearer.

In a preferred embodiment of the present invention, it further includes a lens assembly arranged between the light source 100 and the light-emitting lens 450. The lens assembly at least includes a fly-eye lens, a prism 420, an atomizing lens 430, and a magnifying glass 440. Kind of. Perform homogenization, spectroscopy, atomization and amplification respectively. In this embodiment, the lens assembly has the prism 420, the atomizing mirror 430, and the magnifying glass 440 at the same time, and the prism 420, the atomizing mirror 430, and the magnifying glass 440 are all located in the The focusing lens 410 and the light emitting lens 450 are sequentially arranged in a direction from the focusing lens 410 to the light emitting lens 450.

In a preferred embodiment of the present invention, the effect component includes at least a heat insulation film, a strobe film, a dimming film, a CMY unit 510, a color disc, a fire disc 520, a pattern disc 530, an aperture, and a cutter 540. Kind of. Respectively make the beam produce the effects of reducing heat, stroboscopic, linear dyeing, direct dyeing, dynamic flame, projecting specific patterns, circular cutting, and multilateral cutting.

As shown in FIG. 5, in a preferred embodiment of the present invention, the liquid crystal dimming glass 300 includes two glass plates 310, liquid crystal molecules 320 located between the two glass plates 310, and a pair of liquid crystal molecules 320. Apply voltage to the drive circuit board 340.

Optionally, the liquid crystal dimming glass 300 further includes an annular fixing frame 330 for fixing the two glass plates 310, and the driving circuit board 340 is arranged along the fixing frame 330.

Optionally, at least one of the glass plates 310 is a convex mirror to assist in adjusting the divergence angle of the light beam.

In this embodiment, the glass plate 310 on the side of the liquid crystal dimming glass 300 close to the light source 100 is a flat mirror, and the glass plate 310 on the side away from the light source 100 is a convex mirror and is directed away from the light source. The direction of 100 stands out.

In a preferred embodiment of the present invention, the liquid crystal dimming glass 300 is in an atomized state or a transparent state when the power is off. That is, the liquid crystal molecules 320 of the liquid crystal dimming glass 300 are scattered when no voltage is applied, so that the liquid crystal dimming glass 300 can be used as an atomizing sheet in a low power consumption state; or the liquid crystal dimming glass 300 The liquid crystal molecules 320 of the light glass 300 are in a regular state and high permeability when no voltage is applied, so that the liquid crystal dimming glass 300 can be used as a transparent lens in a low power consumption state.

In other embodiments, the liquid crystal dimming glass 300 may also be in an atomized state or a transparent state when the maximum voltage is applied.

Obviously, the above-mentioned embodiments of the present utility model are merely examples to clearly illustrate the present utility model, and are not intended to limit the implementation of the present utility model. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model shall be included in the protection scope of the claims of the utility model.

Claims

A stage light system with a light beam divergence angle varying with voltage, which is characterized by comprising a light source (100), a condensing element (200) that converges the light emitted by the light source (100), and a light source (100) arranged on the light source (100) For the liquid crystal dimming glass (300) in the light emitting direction, the beam divergence angle of the liquid crystal dimming glass (300) gradually decreases or increases as the applied voltage increases.
The stage light system with a light beam divergence angle varying with voltage according to claim 1, wherein the light source (100) is one of an LED light, a laser light, and a bubble light.
The stage light system with a light beam divergence angle varying with voltage according to claim 1, wherein the condensing element (200) is one of a reflector, a light guide, a total internal reflection mirror, and a plano-convex mirror .
The stage light system with a light beam divergence angle varying with voltage according to claim 1, wherein the number of the light source (100) and the number of the liquid crystal dimming glass (300) are both multiple and one-to-one correspondence.
The stage light system with a light beam divergence angle varying with voltage according to claim 1 or 4, further comprising the atomizing mirror (430) arranged on the light exit side of the liquid crystal dimming glass (300).
The stage light system with a light beam divergence angle varying with voltage according to claim 1, characterized in that it further comprises an effect component and a focus adjustment set between the light source (100) and the liquid crystal dimming glass (300) A mirror (410), and a light emitting lens (450) arranged on the side of the liquid crystal dimming glass (300) away from the light source (100).
The stage light system whose beam divergence angle varies with voltage according to claim 6, further comprising a lens assembly arranged between the light source (100) and the light emitting lens (450), the lens assembly It includes at least one of a fly-eye lens, a prism (420), an atomizing mirror (430), and a magnifying glass (440).
The stage light system in which the beam divergence angle varies with voltage according to claim 6, wherein the effect component at least includes a heat insulation film, a strobe film, a CMY unit (510), a color plate, and a fire plate (520). ), gobo (530), aperture, cutter (540).
The stage light system with a light beam divergence angle varying with voltage according to claim 1, wherein the liquid crystal dimming glass (300) comprises two glass plates (310) located on the two glass plates (310) Between the liquid crystal molecules (320), and the driving circuit board (340) that applies voltage to the liquid crystal molecules (320).
The stage light system with a light beam divergence angle varying with voltage according to claim 1, wherein the liquid crystal dimming glass (300) is in an atomized state or a transparent state when the power is off.