Optical system

Abstract

The utility model discloses an optical system which comprises a laser light source, a CMY color filter group, a monochromatic coating color chip disc, a color coating scattering glass sheet, a prism group and a convex lens group which are sequentially arranged along the light transmission direction, the center points of the CMY color filter group, the color coated scattering glass sheet, the prism group and the convex lens group are collinear; the single-color coating color sheet disc is arranged between the CMY color filter group and the color coating scattering glass sheet; and the single-color coated color chip disc is a rotatable single-color coated color chip disc. According to the utility model, an optical system with rich color change and dynamic color effect light beams can be obtained, and a colorful and dynamic change light beam set can be presented.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting fixtures, in particular to an optical system. Background Art

[0002] In modern lighting technology, beam lamps are a type of lamp that transmits light energy in the shape of a light column. They are widely used in large-scale outdoor activities, concerts and other entertainment venues because they can produce high-brightness, long-distance beams.

[0003] The existing design of beam moving head lights mainly focuses on the shape and brightness of the light column to provide visual impact and long-distance illumination capabilities. However, these lamps usually use white light sources or use monochrome filters to produce single-color beams. Although such designs can meet basic lighting needs, they are limited in functionality in places that pursue richer visual experiences and dreamy light effects. The beam lights currently on the market have limitations in color performance. For example, they have a single color and can only provide limited tonal changes, which cannot meet the needs of changing colors; they lack dynamic color changes. Existing beam lights often lack complex and dynamic color changes and cannot create rich visual effects to adapt to different occasions and themes; they lack interactivity. Currently, interactive experiences are increasingly valued, and traditional beam lights are difficult to interact with the environment and other media, which limits their application in immersive experiences and customized performances.

[0004] Therefore, how to design an optical system with rich color changes and dynamic color effects has become an urgent problem to be solved. Summary of the invention

[0005] The embodiment of the utility model provides an optical system, which can effectively solve the problem that the optical system in the prior art has a single color, can only provide limited color changes, and cannot meet the needs of changing colors.

[0006] An embodiment of the utility model provides an optical system, comprising: a laser light source, a CMY color filter group, a monochrome coated color plate, a color coated scattering glass plate, a prism group and a convex lens group arranged in sequence along the light transmission direction;

[0007] The center points of the CMY color filter group, the color-coated scattering glass sheet, the prism group, and the convex lens group are collinear;

[0008] The monochrome coated color plate disk is arranged between the CMY color filter group and the color coated scattering glass plate; the monochrome coated color plate disk is a rotatable monochrome coated color plate.

[0009] Furthermore, the CMY color filter set includes a cyan coated color filter, a rose red coated color filter and a yellow coated color filter;

[0010] Each color filter in the CMY color filter group is provided with a gradient coating area and a full coating area.

[0011] Furthermore, a plurality of color flakes of different colors are arranged on the single-color coated color flake disk, and adjacent color flakes are connected.

[0012] Furthermore, the colored coated scattering glass sheet is a self-rotating colored coated glass sheet.

[0013] Further, the prism group includes a first prism and a second prism; the first prism and the second prism are symmetrically arranged about a symmetry point;

[0014] The symmetric point is the midpoint of a line connecting the vertices of the first prism and the second prism.

[0015] Further, the convex lens group includes a first convex lens and a second convex lens;

[0016] The first convex lens is a fixed first convex lens;

[0017] The second convex lens is a movable second convex lens.

[0018] By implementing the utility model, at least the following beneficial effects are achieved:

[0019] The utility model provides an optical system, comprising a laser light source, a CMY color filter group, a monochrome coated color plate, a color coated scattering glass plate, a prism group and a convex lens group, which are arranged in sequence along the light transmission direction; the center points of the CMY color filter group, the color coated scattering glass plate, the prism group and the convex lens group are collinear, which ensures that the light can be transmitted normally, reduces the loss of light, and improves the quality of the light beam formed by the optical system; the light energy of the laser light source is highly concentrated, and a large amount of energy is concentrated in a small space and a short time, and the divergence angle of the light source is smaller, which is conducive to the energy transmission of the light source, so the utility model The type uses a laser light source as the light source of the optical system; the light emitted by the light source passes through a CMY filter group to obtain a mixture of light of different colors, and then the light of different colors is filtered after passing through a monochrome coated color plate to obtain many light beams of specific colors. These light beams are broken up into non-sequential fine light sets after passing through a color coated scattering glass sheet, and can be randomly rendered into fine light sets of different colors. Then, the fine light sets of different colors are passed through a prism group to increase the number and divergence angle of the light, and finally propagated through a convex lens group to form a light beam with rich color changes and dynamic color effects. The monochrome coated color plate is a rotatable monochrome coated color plate, which further ensures the dynamic color changes of the light. Therefore, by implementing the utility model, an optical system with rich color changes and dynamic color effect light beams can be obtained, presenting a colorful and dynamically changing light beam set. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an optical system provided by one embodiment of the utility model.

[0021] Figure 2 The utility model provides a CMY color filter set coating area and structure schematic diagram of an optical system according to an embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the layout of a monochrome coated color plate of an optical system provided by an embodiment of the utility model.

[0023] Figure 4 This is a schematic diagram of the propagation of the principal light of an optical system provided by an embodiment of the utility model;

[0024] Figure 5 It is a three-dimensional schematic diagram of an optical system provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1 , is a schematic diagram of the structure of an optical system provided by an embodiment of the utility model, comprising: a laser light source, a CMY color filter group, a monochrome coated color plate, a color coated scattering glass plate, a prism group and a convex lens group arranged in sequence along the light transmission direction;

[0027] Figure 1 Marking description: 1. Convex lens group 1 2. Convex lens group 2 3. Prism group 1 4. Prism group 2 5. Color coated scattering glass sheet 6. Monochrome coated color plate 7. CMY color filter group 8. Laser light source.

[0028] The center points of the CMY color filter group, the color-coated scattering glass sheet, the prism group, and the convex lens group are collinear;

[0029] The center points of the CMY filter group, the color-coated scattering glass sheet, the prism group, and the convex lens group are collinear, which helps to improve the beam quality and performance of the optical system. When the center points of these optical elements are collinear, the light propagation paths between them are more consistent, which helps to reduce the loss of the beam, thereby improving the quality of the final beam. The function of the CMY filter group is to filter white light and produce different colors of light. When these components are correctly aligned, it can ensure that each color of light passes through the corresponding filter accurately, thereby obtaining a purer and more saturated color output. The design of the center point collinearity simplifies the structure of the overall optical path, making the transmission of light between the various components smoother, reducing the light energy loss caused by refraction or reflection, and improving the light energy utilization rate of the system.

[0030] Preferably, the monochrome coated color plate disk is arranged between the CMY color filter group and the color coated scattering glass plate; the monochrome coated color plate disk is a rotatable monochrome coated color plate disk.

[0031] By rotating the color film disc, different color segments can be selected to achieve a variety of color effects, such as two-way rainbow effect and halftone effect; the rotatable monochrome coated color film disc can quickly change the color of light on the stage, increasing the dynamic and visual impact of the performance; the rotatable design allows on-site operators to easily adjust the color film to adapt to different performance needs and improve work efficiency; it provides lighting designers with more creative space, allowing them to design more colorful lighting effects and enhance the audience's experience. The design of the rotatable monochrome coated color film disc not only improves the versatility and flexibility of lighting equipment, but also brings more possibilities and convenience to lighting design and stage performances.

[0032] Specifically, a plurality of color flakes of different colors are arranged on the single-color coated color flake disk, and adjacent color flakes are connected.

[0033] The advantage of the CMY color filter set is that the colors can be mixed in real time according to actual needs, but the light energy loss is serious. The single-color filter on the single-color coated color plate can reduce the light energy loss by using only one piece under the premise of producing a specific color. In addition, the spot diameter of the laser focus is very small, and the single-color filter can filter the light with a very small area. Figure 3 As shown, 19 different colors of monochrome color filters can be placed on a color disk, and the middle of two adjacent color filters are close to each other. When the connection between the two color filters cuts into the light path, by placing a monochrome color filter disk at the focused spot of the light source, the area is in the imaging area, the lamp images it, and the light output of the beam lamp presents two colors.

[0034] In one embodiment of the utility model, the laser light source can concentrate a lot of energy in a very small space and a very short time due to its highly concentrated light beam, and the laser light source has a smaller divergence angle than the ordinary LED light source. Therefore, by using the laser light source as the light source of the beam lamp, we can obtain a lens imaging point with highly concentrated light energy and a small focused spot and a small divergence angle, which is conducive to the collection of light from the light source by the beam lamp lens, preventing the escape of light energy, facilitating the energy propagation of the light source, and greatly improving the illumination value of the lamp at different distances.

[0035] In an embodiment of the present invention, the CMY color filter set includes a cyan coated color filter, a rose red coated color filter and a yellow coated color filter; each color filter in the CMY color filter set is provided with a gradient coated area and a full coated area.

[0036] Since the light emitted by the laser light source is also mixed light, which is the mixed light produced by the blue laser exciting the yellow fluorescence, the utility model adopts three colors of color flakes, namely, cyan coated color flakes, rose red coated color flakes, and yellow coated color flakes, and mixes them according to the color flakes. Figure 2 The coating is carried out according to the coating style in the film. Each color film is divided into a gradient coating area (gradient coating area) where the coating area gradually increases, and a full-color area (full coating area) where the coating area is fully coated. By cutting different CMY coating areas into the light path, since the CMY color filter is in the non-imaging area, white light passing through the CMY color filter will produce light of different colors, but will eventually be evenly mixed in the imaging area. The lamp can then transmit the evenly mixed light and obtain colors in most color gamuts.

[0037] In an embodiment of the present invention, the colored coated scattering glass sheet is a self-rotating colored coated glass sheet.

[0038] The current production process can coat color on textured glass sheets. The colored coated scattering glass sheet of the utility model can realize self-rotation, such as Figure 5As shown, the color motion effect sheet (color coated scattering glass sheet) is installed on a rotatable bracket or base, and is provided with a bearing or a rotating shaft for supporting the color coated scattering glass sheet and allowing it to rotate. It is connected to a motor or other driving device, and is driven to rotate the color coated scattering glass sheet based on a belt drive. When the color coated scattering glass sheet is cut into the light path, the sequential light column can be broken up into a non-sequential thin light set by the texture of the glass sheet. At the same time, the color coating on its surface can randomly render the thin light into different colors. When the coated texture sheet rotates, the texture will disturb the light, and the thin light set will feel that the color is flowing. At this time, if a monochrome coated color plate is cut into the light path, the white light will be changed into a dyed monochrome or two-color light. These lights will pass through the color coated scattering glass sheet and are filtered again, so that the light passing through the same color coated scattering glass sheet will change. The monochrome coated color plate and the color coated scattering glass sheet are combined, and the colorful light will feel changing, which is very dreamy. In order to disperse the light into a sufficient light set, the colored coated scattering glass sheet needs to be placed at a relatively large spot, rather than at the point where the light spot is the smallest. This is because the texture in the colored coated scattering glass sheet has a certain volume and area. If the light spot irradiation area is too small, there is no way to disperse the light beam into thin beams in different directions. Therefore, the colored coated scattering glass sheet should be placed at a position where the projection spot of the main light of the light source is large enough, and this position should be the imageable area of ​​the imaging lens. The schematic diagram of the propagation of the main light of the light source is shown in the figure. Figure 4 shown.

[0039] In one embodiment of the utility model, the prism group includes a first prism and a second prism; the first prism and the second prism are symmetrically arranged about a symmetry point; the symmetry point is the midpoint of the line between the vertex of the first prism and the vertex of the second prism.

[0040] The symmetrically arranged first prism and second prism can provide a more uniform and symmetrical beam propagation effect. The symmetrical arrangement of the two prisms helps to ensure that the light passing through them is refracted or reflected equally in the expected manner, reducing unnecessary light path and reflection losses, improving the light energy utilization of the system, and improving the performance and accuracy of the entire optical system; symmetrically placed prisms can minimize the optical path length, which helps to reduce the size and weight of the beam lamp equipment; symmetrical structures usually have better mechanical stability, which helps to maintain the long-term alignment and performance of the optical components of the optical system.

[0041] In an embodiment of the present invention, the convex lens group includes a first convex lens and a second convex lens; the first convex lens is a fixed first convex lens; and the second convex lens is a movable second convex lens.

[0042] The utility model adopts two groups of positive focal length lens groups, fixes one group of lenses (fixed first convex lens), and moves another group of lenses (movable second convex lens), such as Figure 5 As shown, the position of the fixed first convex lens is unchanged relative to the position of the laser light source, and the movable second convex lens is moved between the fixed first convex lens and the laser light source by two sliding rods. Different combined focal lengths are generated by using the different intervals between the two lens groups, so that objects at different object distances can be projected to obtain a light beam with rich color changes and dynamic color effects. By moving the second convex lens to change the focal length, the zoom function can be realized, that is, the field of view can be adjusted without changing the shooting position.

[0043] The laser light source has highly concentrated light energy, which is beneficial to the energy transmission of the light source. It absorbs or reflects light of specific wavelengths according to different combinations and densities through the CMY filter group, thereby realizing the adjustment and real-time mixing of the color of the laser light source; the light mixed by the CMY filter group is filtered through a monochrome coated color plate to obtain many light beams of specific colors; many light beams of specific colors are broken up into non-sequential thin light sets through color coated scattering glass sheets, and the color coating randomly renders the thin light sets into different colors; the number and divergence angle of thin light rays of different colors are increased through a prism group; the light is transmitted through a convex lens group to obtain a light beam with rich color changes and dynamic color effects.

[0044] By implementing this embodiment, the center points of the CMY color filter group, the color coated scattering glass sheet, the prism group and the convex lens group are collinear, ensuring that the light can be transmitted normally, reducing the loss of light, and improving the quality of the light beam formed by the optical system; the light energy of the laser light source is highly concentrated, and a large amount of energy is concentrated in a small space and a short time. The divergence angle of the light source is smaller, which is conducive to the energy transmission of the light source, so the utility model uses a laser light source as the light source of the optical system; the light emitted by the light source passes through the CMY color filter group to obtain a mixture of light of different colors, and then the light mixed with different colors passes through the monochrome coated color plate to filter and obtain many specific color light beams, these light beams are broken up into non-sequential fine light sets after passing through the color coated scattering glass sheet, and can be randomly rendered into fine light sets of different colors, and then the fine light sets of different colors pass through the prism group to increase the number and divergence angle of the light, and finally propagate through the convex lens group to form a light beam with rich color changes and dynamic color effects. The monochrome coated color plate is a rotatable monochrome coated color plate, which further ensures the dynamic color change of the light. Therefore, by implementing the utility model, an optical system with a light beam having rich color changes and dynamic color effects can be obtained.

[0045] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An optical system, characterized in that: include: A laser light source, a CMY color filter group, a monochrome coated color plate, a color coated scattering glass sheet, a prism group and a convex lens group are sequentially arranged along the light transmission direction; The center points of the CMY color filter group, the color-coated scattering glass sheet, the prism group, and the convex lens group are collinear; The monochrome coated color plate disk is arranged between the CMY color filter group and the color coated scattering glass plate; the monochrome coated color plate disk is a rotatable monochrome coated color plate.

2. An optical system according to claim 1, characterized in that: The CMY color filter set includes a cyan coated color filter, a rose red coated color filter and a yellow coated color filter; Each color filter in the CMY color filter group is provided with a gradient coating area and a full coating area.

3. An optical system according to claim 1, characterized in that: A plurality of color chips of different colors are arranged on the single-color coated color chip disk, and adjacent color chips are connected.

4. An optical system according to claim 1, characterized in that: The colored coated scattering glass sheet is a self-rotating colored coated glass sheet.

5. An optical system according to claim 1, characterized in that: The prism group includes a first prism and a second prism; the first prism and the second prism are symmetrically arranged about a symmetry point; The symmetric point is the midpoint of a line connecting the vertices of the first prism and the second prism.

6. An optical system according to claim 1, characterized in that: The convex lens group includes a first convex lens and a second convex lens; The first convex lens is a fixed first convex lens; The second convex lens is a movable second convex lens.

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