Compensation type color mixing system

Abstract

A compensation type color mixing system comprises a light source, a light through hole formed in a main light path, three single-color annular light filters arranged on a light emitting light path in parallel at intervals and a driving device used for driving the light filters to rotate, and the three light filters are the C light filter, the M light filter and the Y light filter respectively. A light-transmitting area and a color area which are annularly arranged and connected end to end are arranged on the optical filter; the light source is characterized by further comprising at least one color complementing piece which is arranged on a light emitting path, has the same color type as the light filter and is arranged adjacent to the light filter in parallel at intervals; the shape, the size and the color area shape and the size of the light filter are the same as those of the color complementing piece, the linear gradual change direction of the color area of the light filter is opposite to the light emitting direction of the color complementing piece, and part of the color area of the color complementing piece is selectively and statically arranged on a main light path.

Description

Technical Field

[0001] The present invention relates to the technical field of stage lights, and more particularly to a compensatory color mixing system. Background Art

[0002] In the existing stage light color mixing technology, the color mixing system can be divided into a translational CMY filter disk and a turntable CMY filter disk; among them, each color filter of the translational CMY filter disk is divided into two, and the upper and lower layers are translated longitudinally, which can achieve better color mixing; however, the translational filter disk also has disadvantages. Specifically, when the filter is fully cut in, the color transition at the outer edge of the light spot is still abrupt due to the small gradient area, and a perfect uniform gradient effect cannot be achieved. The gradient area of ​​the turntable CMY filter disk is a filter part with a point density and linear change on the coating layer on its surface through a laser etching process; then the CMY subtractive color mixing principle is used to achieve arbitrary color gradient mixing, but since the single color disk is a gradient transition, it is inevitable that there will be up and down color cast or left and right color cast after projection magnification. Summary of the Invention

[0003] The present invention provides a compensatory color mixing system, which solves the problems of sudden color transition, upper and lower color cast, and left and right color cast.

[0004] In order to solve the problems of the prior art, the present invention adopts the following technical solutions:

[0005] A compensatory color mixing system includes a light source, a light aperture provided on a main light path, three monochromatic annular filters arranged in parallel and spaced apart on an exit light path, and a drive device for driving the filters to rotate. The three filters are a C filter, an M filter, and a Y filter. The filters are provided with light-transmitting regions and color regions arranged in an annular pattern and connected end to end. The system is characterized in that it also includes at least one complementary color filter provided on the exit light path, having the same color category as the filters and arranged parallel to and adjacent to the filters.

[0006] The color zones of the filter include annular color zone 1 and annular color zone 2. Color zone 1 is a single color 0-100% linear gradient area, and color zone 2 is a single color 100% area. The colors of color zone 2 and color zone 1 transition smoothly. The light-transmitting area is located between the beginning of color zone 1 and the end of color zone 2.

[0007] The shape, size, and color zone shape and size of the filter are identical to those of the complementary color filter. The linear gradient direction of the filter's color zones is opposite to that of the complementary color filter in the light-emitting direction. Part of the color zone of the complementary color filter can be optionally positioned stationary in the main light path. As a further improvement of the present invention, the linear gradient rate of the filter's color zones can be the same as or different from that of the complementary color filter in the light-emitting direction.

[0008] As a further improvement of the present invention, the radial width of the color zone is greater than the diameter of the light-through hole.

[0009] As a further improvement of the present invention, any circumferential width of the color zone 2 is greater than the diameter of the light-through hole.

[0010] As a further improvement of the present invention, the distance d between the color-complementing plate and the filter is 1.5 mm≤d≤6 mm.

[0011] As a further improvement of the present invention, part of the color area of ​​the color-complementary filter can be optionally statically arranged on the main light path, including part of the color area being movably cut into the main light path and then statically arranged on the main light path.

[0012] As a further improvement of the present invention, part of the color area can be movably cut into the main light path, including after the complementary color filter is swung into the main light path, part of the color area of ​​the complementary color filter is cut into the main light path by the rotation of the complementary color filter.

[0013] As a further improvement of the present invention, part of the color area can be movably cut into the main light path, including part of the color area switching the main light path only by the rotation of the complementary color filter.

[0014] As a further improvement of the present invention, the color-complementing plate is coaxial with the filter.

[0015] As a further improvement of the present invention, the color-complementing plate and the filter are respectively arranged on both sides of the light-through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the filter of Example 1.

[0017] Figure 2 This is a front view of the color-correcting film of Example 1.

[0018] Figure 3 Schematic diagram of the distribution of M color-complementary patches in Example 1.

[0019] Figure 4 a is a schematic diagram showing the effect of the light-transmitting area of ​​the M filter in Example 1 being located on the main light path.

[0020] Figure 4 b is a schematic diagram of the effect of the color zone 1 of the M filter in Example 1 being located on the main light path.

[0021] Figure 4 c is a schematic diagram of the effect of the color zone 1 of the M complementary color filter in Example 1 being located on the main light path.

[0022] Figure 4 d is a schematic diagram of the effect of the overlapping area c being located on the main light path in Example 1.

[0023] Figure 5 Schematic diagram of the distribution of the C color-complementary patch in Example 2.

[0024] Figure 6 a is a schematic diagram showing the effect of the light-transmitting area of ​​the C filter in the second embodiment being located on the main light path.

[0025] Figure 6 b is a schematic diagram of the effect of the color zone 1 of the C filter in the second embodiment being located on the main light path.

[0026] Figure 6 c is a schematic diagram showing the effect of the color zone 1 of the C complementary color filter in Example 2 being located on the main light path.

[0027] Figure 6 d is a schematic diagram of the effect of the overlapping area c being located on the main light path in Example 2.

[0028] Figure 7 Schematic diagram of the distribution of the Y complementary color filter in Example 3.

[0029] Figure 8 a is a schematic diagram of the effect of the light-transmitting area of ​​the Y filter in Example 3 being located on the main light path.

[0030] Figure 8 b is a schematic diagram of the effect of the color zone 1 of the Y filter in Example 3 being located on the main light path.

[0031] Figure 8 c is a schematic diagram of the effect of the color zone 1 of the Y complementary color filter in Example 3 being located on the main light path.

[0032] Figure 8 d is a schematic diagram of the effect of the overlapping area c in Example 3 being located on the main light path.

[0033] Figure 9 Schematic diagram of the distribution of the C complementary color patch, the M complementary color patch, and the Y complementary color patch in Example 4.

[0034] In the figure: light source 1; light hole 2; filter 3; C filter 31; M filter 32; Y filter 33; light transmission area 34; color area 35; color area one 351; color area two 352; circumferential width a; radial width b; complementary color filter 4; C complementary color filter 41; M complementary color filter 42; Y complementary color filter 43; light transmission area 44; color area 45; color area one 451; color area two 452; overlapping area c; main light path 5; fixing group 6; magnifying group 7; focusing group 8; pattern plate 9. DETAILED DESCRIPTION Example 1

[0035] Combined with attachment Figure 1 To the attached Figure 3A compensatory color mixing system includes a light source 1, a light hole 2 provided on a main light path, at least one monochromatic annular filter 3 provided on an outgoing light path, and a driving device for driving the filter 3 to rotate. The filter 3 is provided with a light-transmitting area 34 and a color area 35 arranged in an annular shape and connected end to end. The system also includes at least one complementary color filter 4 provided on the outgoing light path, having the same color category as the filter 3 and arranged parallel to and adjacent to the filter 3. The color area 35 of the filter 3 includes an annular color area 1 351 and an annular color area 2 352. In this embodiment, the color area 1 351 is a monochromatic color area. -100% linear gradient area, the gradient area is counterclockwise gradient; color zone two 352 is a monochrome 100% area, and the color of color zone two 352 and color zone one 351 has a smooth transition; the light-transmitting area 34 is located between the beginning of color zone one 351 and the end of color zone two 352; the shape, size and shape and size of the color zone 35 of the filter 3 are the same as those of the complementary color film 4, and the linear gradient direction of the color zone 35 of the filter 3 is opposite to that of the complementary color film 4 in the light emitting direction, and the color zone one 451 of the complementary color film 4 is gradient in the clockwise direction; part of the color zone 45 of the complementary color film 4 can be optionally stationary on the main light path 5.

[0036] When the filter 3 is operating alone, its counterclockwise rotation by the drive device is used as an example for explanation. When the light-transmitting area 34 cuts into the main light path 5, the light spot formed by the light emitted by the light source 1 is a white light spot. Then, the color zone 1 351 rotates counterclockwise and cuts into the main light path 5. Because the color zone 1 351 is a single-color 0-100% linear gradient area, the light emitted by the light source 1 can form a gradient light spot with a linear color gradient through the color zone 1 351. As technicians in this industry can understand, because the part of the color zone 1 351 within the light spot in the working state is not uniformly distributed but gradient, after the formed light spot is magnified, the part of the light spot formed will show obvious color unevenness. Then, when the color zone 2 352 of the filter 3 cuts into the main light path 5, the resulting light spot is a saturated and uniform light spot. The beneficial effect of this embodiment is that a gradient light spot with a linear gradient of 0-100% can be achieved. However, since the filter 3 has a gradual transition, it is inevitable that there will be a vertical color cast or a left-right color cast after projection magnification.

[0037] How Color Filter 4 works:

[0038] Part of the complementary color filter 4 is stationary on the main light path 5, and is combined with the filter 3 to mix colors, thereby compensating for the problem of gradual transition of the filter 3 within the light spot range mentioned above. Figure 4As shown, after adding the complementary color filter 4 to the color mixing system, a portion of the color region 1 (451) of the complementary color filter 4 intersects clockwise and remains stationary on the main light path 5. The color region 1 (351) of the filter 3 rotates and intersects the main light path 5, forming an overlapping region (c) with the color region 1 (451) of the complementary color filter 4. The light passing through the overlapping region (c) forms a uniform light spot, and when the filter 3 rotates counterclockwise, the color of the light spot formed in the overlapping region (c) changes linearly from light to dark. Furthermore, the color region 1 (451) of the complementary color filter 4 can be divided into multiple regions. When different regions of the color region 1 (451) are located on the main light path 5 and combined with the color region 1 (351) of the filter 3, the resulting light spot has varying color intensities, but the color remains uniform. Moreover, both the color zone 1 451 and the color zone 2 452 of the complementary color filter 4 can be selectively cut into the main light path 5 according to different needs. When the color zone 2 452 of the complementary color filter 4 rotates and cuts into and stops on the main light path 5 immediately after the color zone 1 451, no matter whether the color zone 1 351 or the color zone 2 352 of the filter 3 cuts into the main light path 5, the light spot formed is a light spot with saturated and uniform color and the color concentration does not change. The beneficial effect of this embodiment is that the combination of the complementary color filter 4 and the filter 3 solves the problem of uneven color of the light spot formed when the color zone 1 351 of the filter 3 cuts into the main light path 5 alone; when the filter 3 rotates on the main light path 5, it can form a light spot with uniform color and also achieve a linear gradient of the color concentration of the light spot.

[0039] In terms of the arrangement order of filter 3:

[0040] Combined with attachment Figure 3 The three filters are the M filter 32, C filter 31, and Y filter 33, arranged in parallel and spaced order. Because the M color is more sensitive and more prone to color cast, and the closer the light spot is to the pattern wheel 9, the more pronounced its color becomes. Therefore, the M filter 32 should be positioned away from the pattern wheel 9 and closer to the light source 1. The Y color is relatively less sensitive, so the C filter 31 is positioned between the Y filter 33 and the light source 1, and the Y filter 33 is positioned relatively close to the pattern wheel 9. This embodiment effectively mitigates color cast in the M filter 32, C filter 31, and Y filter 33.

[0041] In terms of the distribution spacing of the three filters 3:

[0042] When three filters 3 are separately arranged in the color mixing system, that is, there is no complementary color filter 4 between two adjacent filters 3, the distance d between the two adjacent filters 3 should be 1.5mm≤d≤6mm. When d is less than 1.5mm, the distance between the two filters 3 is too small, and the two filters 3 are prone to mutual interference or collision; when d is greater than 6mm, the distance between the two filters 3 is too large, and the color of the light spot formed by the combination of light passing through the two filters 3 is uneven. The beneficial effect of this embodiment is that the filters 3 arranged in parallel and at equal intervals are conducive to preventing mutual interference between each two adjacent filters 3 and are conducive to forming a light spot with uniform color; a combination of multiple filters 3 cut into the main light path 5 can also form a gradient light spot of different colors; or a single filter 3 cuts into the main light path 5 alone can also form a monochrome gradient light spot.

[0043] When the color mixing system is also provided with a color-complementing filter 4, as shown in the attached Figure 3 As shown, when the complementary color filter 4 is located between the light source 1 and the filters 3, the filters 3 are distributed in parallel and at equal intervals on the main light path 5; and when the complementary color filter 4 is located between every two adjacent filters 3, the three filters 3 are arranged in parallel and at intervals in sequence.

[0044] In terms of the settings of color patch 4:

[0045] In this embodiment, the Figure 3 and attached Figure 4The complementary color patch 4 set by the color mixing system is the M complementary color patch 42. Since the M filter 32 is more sensitive than the C filter 31 and the Y filter 33, the light spot formed by it is more likely to be uneven in color, that is, left-right color cast or up-down color cast, as can be seen by the naked eye. Therefore, only one M complementary color filter 42 is provided; the M complementary color filter 42 performs color compensation for the M filter 32, and the color zone 1 451 of the M complementary color filter 42 is divided into five areas by dotted lines. These five areas can be optionally located on the main light path 5; and when the color zone 1 351 of the M filter 32 rotates counterclockwise to the main light path, the M filter 32 and the M complementary color filter 42 will overlap to form an overlapping area c; when the light passes through the overlapping area c of the M filter 32 and the M complementary color filter 42, a gradient light spot with uniform color can be formed; when the color zone 2 352 of the M filter 32 rotates to the main light path 5, the light passes through the overlapping area c of the color zone 2 351 and the M complementary color filter 42 to form a light spot with saturated and uniform color. When the color zone 2 452 of the M complementary color plate 42 rotates clockwise to the main light path 5 and remains stationary, regardless of whether the color zone 1 351 or the color zone 2 352 of the M filter 32 rotates counterclockwise to the main light path 5, the light passing through the overlapping area c can only form a saturated and uniform light spot. The M complementary color plate 42 and the M filter 32 can also be used in combination with the C filter 31 or the Y filter 33 to form a gradient light spot of different colors. The beneficial effect of this embodiment is that color compensation of the M filter 32 can form a uniform M color gradient light spot or a saturated M color light spot. When the M complementary color plate 42 and the M filter 32 are used in combination with other filters, they can also form a gradient light spot of different colors.

[0046] In terms of the distribution of complementary color patches:

[0047] Preferably, in combination with Figure 3 The M complementary color plate 42 is adjacent to the color filter 3 of the same color category. The M complementary color plate 42 and the M filter 32 are located on the main optical path 5. The M complementary color plate 42 can be located either in front of or behind the corresponding M filter 32. In this embodiment, the M complementary color plate 42 is located between the M filter 32 and the light source 1. The coating surface of the M complementary color plate 42 is arranged to face the coating surface of the M filter 32. The beneficial effect of this embodiment is that the distance between the M filter 32 and the M complementary color plate 42 is within a suitable range, which is conducive to forming a uniform color gradient light spot or a monochromatic light spot.

[0048] As those skilled in the art can understand, the M color compensation plate 42 can also be installed between the pattern plate 9 and the light source 1 and located on a side relatively close to the pattern plate 9 ; it can also achieve color compensation for the M filter 3 .

[0049] As a new implementation method, combined with the Figure 1 To the attached Figure 4, the linear gradient rate of the color zone 35 of the filter 3 is different from that of the complementary color filter 4 in the light-emitting direction. Each filter 3 and complementary color filter 4 is evenly divided into seven areas of equal area, of which the color zone 1 (351, 451) of the filter 3 and complementary color filter 4 each occupies five of the areas, and the light-transmitting area (34, 44) and the color zone 2 (352, 452) each occupy one area; as shown in the attached figure. Figure 4 As shown in FIG. 2 , the gradient rate of the filter 3 is 0-100%, and it gradients in the counterclockwise direction; the color zone 1 351 is divided into five areas by dotted lines, namely 0-20%, 20-40%, 40-60%, 60-80% and 80-100%; it is understandable that the color zone 1 351 can also be divided into several areas, as long as the area can completely cover the light hole 2. Figure 4 As shown in Figure c, taking the gradient rate of the color region 1 451 of the complementary color filter 4 as 50-0% as an example, the color region 1 451 is divided into five areas, namely 50-40%, 40-30%, 30-20%, 20-10% and 10-0%; when the 10-0% area of ​​the color region 1 451 rotates clockwise to the main light path 5 and remains stationary, the concentration of the light spot formed by the filter 3 rotating counterclockwise and cutting into the main light path 5 changes from 10% to 20%, from 30% to 40%, from 50% to 60%, from 70% to 80% and from 90% to 100%; when the other areas of the color region 1 451 of the complementary color filter 4 are located on the main light path 5, the light spot formed by the light passing through the overlapping area c is basically the same as the light spot formed when the 0-10% area of ​​the color region 1 451 is located on the main light path 5, except for the different initial color concentration; as shown in Figure 2, Figure 4 As shown in Figure d, when a certain area of ​​the color filter region 351 overlaps with an area of ​​the selected complementary color filter region 451 on the main light path 5, the color concentration of the light spot in the overlapping region c will also have a gradient effect; when the filter rotates counterclockwise, the color of the light spot formed by the light passing through the overlapping region c will linearly gradient from light to dark; it is understandable that the area of ​​the complementary color filter 4 on the main light path 5 can also be 45-35%, 42-32%, or 36-26%, etc., or any other arbitrarily selected area, as long as the area can completely cover the light hole 2. The beneficial effect of this embodiment is that when the linear gradient rate of the color zone of the filter 3 is different from that of the complementary color filter 4 in the light emitting direction, when the filter 3 cuts into the main light path 5, it can form a light spot with uniform color and achieve a more delicate linear change in the color of the light spot.

[0050] Preferably, in combination with Figure 1 To the attached Figure 4 In this embodiment, the linear gradient rate of the color zone 35 of the filter 3 is the same as that of the complementary color filter 4 in the light emitting direction. Figure 4As shown in Figure c, the gradient rate of the color region 1451 of the complementary color filter 4 is 100-0%. Similarly, the color region 1451 is divided into five regions, namely 100-80%, 80-60%, 60-40%, 40-20% and 20-0%. When the 20-0% region of the color region 1451 rotates clockwise onto the main light path 5 and remains stationary, the filter 3 rotates counterclockwise on the main light path 5, and the color of the light shifted on the filter color region 1351 changes linearly from light to dark. For example, the filter color When the 0-20% region of zone 1 351 overlaps with the 20-0% region of color zone 1 451 of the complementary color filter, the color of the resulting light spot will exhibit a linear gradient effect when the light emitted by the light source 1 moves to the next adjacent region of color zone 1 351. It is understandable that the region of the complementary color filter 4 located on the main light path 5 can also be a 90-70%, 70-50%, or 50-30% region, or any other arbitrarily selected region, as long as the region can completely cover the light aperture 2 after being cut into the main light path 5. The beneficial effect of this embodiment is that when the linear gradient rate of the color zone 35 of the filter 3 is the same as that of the complementary color filter 4 in the light emitting direction, the resulting gradient light spot effect is better, the gradient effect is more obvious, the transition is natural, and the color of the light spot is uniform.

[0051] As a new implementation method, combined with the Figure 1 To the attached Figure 4 , the radial width b of the color zone (35, 45) is greater than the diameter of the light hole 2. The radial width b of the color zone (35, 45) is smaller than the diameter of the light hole 2, and the color zone (35, 45) cannot completely cover the light hole 2, causing part of the light to leak out from the inner circumferential edge of the annular color zone (35, 45) and illuminate nearby parts, or leak out from the outer circumferential edge of the annular color zone (35, 45) and project into the interior of the lamp; regardless of whether the light leaks from the inner circumferential edge of the color zone (35, 45) or from the outer circumference, the light loss will increase and a circular light spot cannot be formed. The beneficial effect of this embodiment is that the color zone (35, 45) can completely cover the light hole 2, so that the light emitted by the light source 1 can be completely projected onto the color zone (35, 45), forming a complete circular light spot.

[0052] As a new implementation method, combined with the Figure 1 To the attached Figure 4, any circumferential width a of the second color zone (352, 452) is greater than the diameter of the light hole 2. When the circumferential width a of the second color zone (352, 452) is smaller than the diameter of the light hole 2, the second color zone (352, 452) cannot completely cover the light hole, resulting in the light emitted from the light source 1 being projected onto the first color zone (351, 451) and the second color zone (352, 452) at the same time. Although the color of the first color zone (351, 451) and the second color zone (352, 452) are the same, the color concentrations of the first color zone (351, 451) and the second color zone (352, 452) are different, so the color of the light spot formed is uneven; or the light emitted from the light source 1 is projected onto the light-transmitting zone (34, 44) and the second color zone (352, 452) at the same time. The light emitted from the light-transmitting zone (34, 44) is white light, while the light emitted from the second color zone (352, 452) is monochromatic light, so the color of the light spot formed is not uniform and the color is also uneven. The beneficial effect of this embodiment is that the color zone 2 (352, 452) can completely cover the light hole 2, so that the light emitted by the light source 1 can be fully projected onto the color zone 2 (352, 452), forming a complete circular monochromatic light spot.

[0053] As a new implementation method, combined with the Figure 3 The spacing d between the complementary color plate 4 and the filter 3 is 1.5 mm ≤ d ≤ 6 mm. When d < 1.5 mm, the distance between the complementary color plate 4 and the filter 3 is too small, and the complementary color plate 4 and the filter 3 are likely to interfere with each other or collide with each other. When d > 6 mm, the distance between the complementary color plate 4 and the filter 3 is too large, and the color of the light spot formed by the light passing through the complementary color plate 4 and the filter 3 is uneven. The beneficial effect of this embodiment is that when 1.5 mm ≤ d ≤ 6 mm, the filter 3 and the complementary color plate 4 do not interfere with each other, and the light passing through the filter 3 and the complementary color plate 4 can form a light spot with uniform color.

[0054] As a new implementation method, combined with the Figure 1 , Attachment Figure 2 and attached Figure 4, part of the color area of ​​the complementary color filter 4 can be optionally statically arranged on the main light path 5, including part of the color area (35, 45) that can be movably cut into the main light path 5 and then statically arranged on the main light path 5. In this embodiment, the complementary color filter 4 is divided into seven areas of equal area, the color area 1 451 is composed of five areas, the color area 2 452 and the light-transmitting area 44 each occupy one area; as can be understood by those skilled in the art, the area located above the light-through hole 2 is one of the color areas on the complementary color filter 4; at this time, the color area 1 451 and the color area 2 452 of the complementary color filter 4 can be optionally cut into the main light path 5; the color area 1 451 of the complementary color filter 4 can be selected to cut into the main light path 5 by 60-40%, or 5 The 0-30% area cuts into the main light path 5, and after cutting into the main light path 5, it remains stationary directly above the light hole 2. Therefore, the color zone 1 451 of the complementary color filter 4 can cut into different gradient areas according to different needs and then remain stationary above the light hole 2, while the light-transmitting area 44 and the color zone 2 452 can only cut into the main light path 5 completely. It is understandable that the color zone 1 451 is not limited to being divided into five areas, and can be divided into several areas, as long as the area can completely cover the light hole 2 after cutting into the main light path 5. The beneficial effect of this embodiment is that different areas of the color zone 1 451 can be selected to cut into the main light path 5, and when light passes through it and the filter 3, a variety of light spots with different color concentrations can be formed.

[0055] As a new embodiment, a partial color zone 45 can be movably cut into the main light path 5, including after the complementary color filter 4 is swung into the main light path 5, the partial color zone 45 of the complementary color filter 4 is then cut into the main light path 5 by the rotation of the complementary color filter 4. The color mixing system also includes a swinging device, one end of which is fixed to the central axis, and the swinging device can swing around the central axis within a certain range; the complementary color filter 4 is mounted on the other end of the swinging device, and the swinging device can move the complementary color filter 4 from the initial position to the working position by swinging, that is, coaxial with the filter 3; as can be understood by those skilled in the art, the swinging structure of the complementary color filter 4 is similar to the prism swinging structure in the patent specification CN202022919794.5, which states that "each prism component 223 has a dichroic prism 31 for the transmission wheel 221 to rotate, driving the other end of the prism assembly plate 222 to swing to above the laser emission port 11, so that any prism component 223 is arranged above the laser emission port 11." At this time, the light-transmitting area 44 of the complementary color filter 4 is located on the main light path 5. The driving device rotates the partial color area 45 into the main light path 5. The partial gradient area of ​​the first color area 451 remains stationary on the main light path 5, compensating for the rotation of the filter 3. This allows the light passing through the overlapping area c of the filter 3 and the complementary color filter 4 to form a uniformly colored gradient light spot. When the second color area 452 enters and remains stationary on the main light path 5, the light passing through the filter 3 and the complementary color filter 4 forms a saturated, monochromatic light spot. This embodiment has the beneficial effect of allowing the complementary color filter 4 to swing into its working position, allowing multiple complementary color filters 4 to be superimposed, achieving a superimposed lighting effect from multiple complementary color filters 4. When the complementary color filter 4 is not working, it is in its initial position, avoiding a significant impact on the light passing through the filter 3.

[0056] As a new implementation method, combined with the Figure 4 , part of the color zone 45 can be movably cut into the main light path 5, including part of the color zone 45 switching the main light path 5 only through the rotation of the complementary color filter 4. The complementary color filter 4 is coaxially mounted with the filter 3. The driving device drives the complementary color filter 4 to rotate, so that different areas of the color zone 2 452 and the color zone 1 451 can be rotated to the main light path 5 and then stationary. When the complementary color filter 4 is not needed, the light-transmitting area 44 of the complementary color filter 4 can be cut into the main light path 5. When color compensation of the filter 3 is required, the color zone 1 451 is cut into the main light path 5, and the part of the gradient area of ​​the color zone 1 451 is stationary on the main light path 5, compensating for the counterclockwise rotation of the filter 3 on the main light path, so that the light passing through the overlapping area c of the filter 3 and the complementary color filter 4 can form a uniform color gradient light spot. When the color zone 2 452 is cut into and stationary in the main light path 5, the light passing through the overlapping area c of the filter 3 and the complementary color filter 4 can form a saturated color monochromatic light spot. The beneficial effect of this embodiment is that the partial color area 45 is rotated and switched to the main light path 5 by only the rotation of the complementary color plate 4. At this time, the complementary color plate 4 and the filter 3 are coaxially installed, which can make the color mixing system more space-saving.

[0057] As a new implementation method, combined with the Figure 3 , the complementary color plate 4 is coaxial with the filter 3. The color area 45 on the complementary color plate 4 corresponds one-to-one with the color area 35 on the filter 3. When the complementary color plate 3 and the filter 4 are not coaxial, the color area 45 of the complementary color plate 4 and the color area 35 of the filter 3 may be misaligned front-to-back or left-to-right, that is, on the main light path 5, the color area 45 of the complementary color plate 4 and the color area 35 of the filter 3 may not completely overlap. When the overlapping area c of the filter 4 and the complementary color plate 5 is located on the main light path 5, it cannot completely cover the light hole 2. Therefore, part of the light emitted from the light source 1 will fall on the filter 3 or the complementary color plate 4 alone, and the color of the resulting light spot is not uniform. The beneficial effect of this embodiment is that the complementary color plate 4 is coaxial with the filter 3, so that the color zone 351 of the filter 3 and the color zone 451 of the complementary color plate 4 can completely overlap on the main light path 5, and can completely cover the light hole 2, which is conducive to forming a gradient light spot with uniform color.

[0058] As a new embodiment, the complementary color plate 4 and the filter 3 are respectively arranged on both sides of the light passage 2. Multiple complementary color plates 4 are coaxially mounted, and multiple filters 3 are also coaxially mounted. The complementary color plates 4 and filters 3 are interspersed and distributed on the main light path 5. The complementary color plates 4 and filters 3 can both be driven by a driving device to rotate the complementary color plates 4 or the filters 3, so that the color zone 45 of the complementary color plate 4 or the color zone 35 of the filter 3 are rotated into or out of the main light path 5. As can be understood by those skilled in the art, the movement mode and position distribution of the complementary color plates 4 and the filters 3 are similar to the movement mode and position distribution of the color plate disk described in the patent specification CN201822127381.6: "The first synchronous gear 23 can independently drive the first color plate mounting plate 2 to rotate via the first rotating shaft 2333, and the second synchronous gear 33 can independently drive the second color plate mounting plate 3 to rotate, thereby realizing a stacked arrangement of the first color plate mounting plate 2 and the second color plate mounting plate 3." When the color mixing system is working, the color zone 45 of the complementary color plate 4 rotates to cut into the main light path 5 and stops, overlapping with a part of the color zone 35 of the filter 3 just above the light hole 2, forming an overlapping area c; the lateral spacing between the two central axes of the complementary color plate 4 and the filter 3 should be greater than the radial width b of the complementary color plate 4 or the filter 3 to prevent the complementary color plate 4 from colliding with the filter 3; and the overlapping area c of the color zone 45 of the complementary color plate 4 and the color zone 35 of the filter 3 cannot completely cover the light hole 2, resulting in uneven color of the formed light spot; when the lateral spacing between the complementary color plate 4 and the filter 3 is too large, the overlapping area c of the color zone 45 of the complementary color plate 4 and the color zone 35 of the filter 3 is too small; and the overlapping area c cannot completely cover the light hole 2, which will also cause uneven color of the formed light spot. The beneficial effect of this embodiment is that the color-complementing film 4 and the filter 3 are respectively arranged on both sides of the light-through hole 2, which is conducive to making the volume of the color mixing system smaller and being able to install more filters 3 and color-complementing films 4. Example 2

[0059] The difference between the second embodiment and the first embodiment is that the positions of the color distribution of the color patch 4 provided in the color mixing system are different.

[0060] In terms of the settings of color patch 4:

[0061] In this embodiment, combined with the Figure 6The color-mixing system uses a C-complementary filter 41 as the complementary filter. Since the resulting light spot exhibits color cast when light passes through the C filter 31, only one C-complementary filter 41 is provided. The C-complementary filter 41 compensates for the color of the C filter 31. The color zone 1 451 of the C-complementary filter 41 is divided into five regions by dotted lines. These five regions can optionally be located on the main optical path 5 and overlap with the color zone 35 of the C filter 31, which is rotated counterclockwise on the main optical path 5, to form an overlapping region c. When light passes through the overlapping region c of the C filter 31 and the C-complementary filter 41, a uniformly colored gradient light spot is formed. When the color zone 2 352 of the C filter 31 rotates onto the main optical path 5, light passing through the overlapping region c of the color zone 2 351 and the C-complementary filter 41 forms a saturated and uniformly colored light spot. When the second color zone 452 of the C complementary color filter 41 rotates clockwise to the main light path 5 and stops, whether the first color zone 351 or the second color zone 352 of the C filter 31 cuts into the main light path 5 counterclockwise, the light passing through the overlapping area c can only form a saturated and uniform light spot. The C complementary color filter 41 and the C filter 31 can also be used in combination with the M filter 32 or the Y filter 33 to form a gradient light spot of different colors. The beneficial effect of this embodiment is that color compensation of the C filter 31 can form a uniform C color gradient light spot or a saturated C color light spot. When the C complementary color filter 41 and the C filter 31 are used in combination with other filters, they can also form a gradient light spot of different colors.

[0062] In terms of the distribution of complementary color patch 4:

[0063] Preferably, in combination with Figure 5 The C complementary color plate 41 is adjacent to the C filter 31 of the same color category. The C complementary color plate 31 is located between the Y filter 33 and the M filter 32. The C complementary color plate 41 and the C filter 31 are located on the main optical path 5. The C complementary color plate 41 can be located either in front of or behind the corresponding C filter 31. The coated surface of the C complementary color plate 41 is positioned opposite the coated surface of the C filter 31. This embodiment has the beneficial effect of ensuring that the distance between the C filter 31 and the C complementary color plate 41 is within a suitable range, which is conducive to forming a uniform color gradient light spot or a monochromatic light spot.

[0064] As those skilled in the art can understand, the C color compensation plate 41 can also be installed between the pattern plate 9 and the light source 1 and located on a side relatively close to the pattern plate 9 ; it can also achieve color compensation for the C filter 3 . Example 3

[0065] The difference between the third embodiment and the first embodiment lies in that the color and distribution position of the color patch 4 provided in the color mixing system are different.

[0066] In terms of the settings of color patch 4:

[0067] In this embodiment, combined with the Figure 8 The complementary color filter 4 provided in the color mixing system is a Y complementary color filter 43. Because the light spot formed when light passes through the Y filter 33 will exhibit color cast, only one Y complementary color filter 43 is provided. The Y complementary color filter 43 performs color compensation for the Y filter 33. The color zone 1 451 of the Y complementary color filter 43 is divided into five regions by dotted lines. These five regions can be optionally located on the main light path 5 and overlap with the color zone 35 of the Y filter 33 rotated counterclockwise on the main light path 5 to form an overlapping region c. When light passes through the overlapping region c of the Y filter 33 and the Y complementary color filter 43, a uniformly colored gradient light spot can be formed. When the color zone 2 352 of the Y filter 33 rotates to the main light path 5, light passing through the overlapping region c of the color zone 2 351 and the Y complementary color filter 43 forms a saturated and uniformly colored light spot. When the color zone 2 452 of the Y complementary color filter 43 rotates clockwise to the main light path 5 and stops, whether the color zone 1 351 or the color zone 2 352 of the Y filter 33 cuts into the main light path 5 counterclockwise, the light passing through the overlapping area c can only form a saturated and uniform light spot. The Y complementary color filter 43 and the Y filter 33 can also be used in combination with the M filter 32 or the C filter 31 to form a gradient light spot of different colors. The beneficial effect of this embodiment is that color compensation of the Y filter 33 can form a uniform Y color gradient light spot or a saturated Y color light spot. When the Y complementary color filter 43 and the Y filter 33 are used in combination with other filters, they can also form a gradient light spot of different colors.

[0068] In terms of the distribution of complementary color patch 4:

[0069] Preferably, in combination with Figure 7 The Y complementary color plate 43 is adjacent to the Y filter 33 of the same color category. The Y complementary color plate 33 is located between the C filter 31 and the Y filter 33. The Y complementary color plate 43 and the Y filter 33 are located on the main optical path 5. The Y complementary color plate 43 can be located either in front of or behind the corresponding Y filter 33. The coated surface of the C complementary color plate 43 is arranged to face the coated surface of the C filter 33. The beneficial effect of this embodiment is that the distance between the Y filter 33 and the Y complementary color plate 43 is within a suitable range, which is conducive to forming a uniform color gradient light spot or a monochromatic light spot.

[0070] As technicians in this industry can understand, the Y complementary color film 43 can also be installed between the pattern disk 9 and the light source 1, and located on a side relatively close to the pattern disk 9; it can also achieve color compensation for the Y filter 3. Example 4

[0071] The difference between the fourth embodiment and the first embodiment is that the fourth embodiment is a combination of the first embodiment, the second embodiment and the third embodiment.

[0072] In terms of the settings of color patch 4:

[0073] In this embodiment, the Figure 9 , the complementary color film 4 is a C complementary color film 41, an M complementary color film 42 and a Y complementary color film 43. The M filter 32 is more sensitive than the C filter 31 and the Y filter 33, and the light spot formed by it is more likely to be uneven in color, that is, left-right color cast or up-down color cast, which can be seen by the naked eye; the C filter 31 and the Y filter 33 are not so sensitive, but left-right color cast or up-down color cast will still occur; therefore, a C complementary color filter 41, an M complementary color filter 42 and a Y complementary color filter 43 are respectively provided; and the complementary color filters are distributed in the light output direction in the order of M complementary color filter 42, C complementary color filter 41 and Y complementary color filter 43; a plurality of different complementary color filters 4 and their corresponding filters 3 can be selected according to different needs to cut into the main light path 5; a part of the complementary color filter 4 rotates clockwise to the main light path 5 and remains stationary, and its corresponding filter 3 rotates counterclockwise on the main light path 5; the complementary color filter 4 compensates the color of the light passing through the filter 3 to form a uniform color gradient. The light spot may be a color-saturated monochromatic light spot; for example, when the C complementary color plate 51 cuts into and stops in the main light path 5, the color compensation can be performed on the C filter 31 that cuts into the main light path 5 and rotates; when the M complementary color plate 42 cuts into and stops in the main light path 5, the color compensation can be performed on the M filter 32 that cuts into the main light path 5 and rotates; when the Y complementary color plate 43 cuts into and stops in the main light path 5, the color compensation can be performed on the Y filter 33 that cuts into the main light path 5 and rotates; and the combination of the complementary color plates 4 and their corresponding filters 3 can also be combined in pairs to cut into the main light path 5 to form a new color light spot; when the two filters 3 rotate counterclockwise at the same time, a gradient light spot can be obtained; it can also be a combination of three complementary color plates 4 and their corresponding filters 3 that cut into the main light path 5 at the same time, and when the three filters 3 rotate counterclockwise at the same time, a gradient light spot can be obtained. The beneficial effect of this embodiment is that different complementary color films 4 can be selected to cut into the main light path 5 to perform color compensation on the corresponding filters 3; or two or three complementary color films 4 can be simultaneously cut into the main light path 5 to perform color compensation on the corresponding filters 3 respectively; a color mixing system can form a gradient light spot with multiple colors and uniform color, or a saturated monochrome light spot.

[0074] In terms of the distribution of complementary color patch 4:

[0075] Preferably, in combination with Figure 9The complementary color filters 4 are C complementary color filter 41, M complementary color filter 42, and Y complementary color filter 43. The C complementary color filter 41, M complementary color filter 42, and Y complementary color filter 43 are each adjacent to a filter 3 of the same color category. The complementary color filters 4 and filters 3 are located on the main optical path 5. The complementary color filters 4 can be located either in front of or behind the corresponding filters 3. The coated surfaces of the complementary color filters 4 are positioned facing the coated surfaces of the corresponding filters 3. This embodiment has the beneficial effect of ensuring that the distance between the filters 3 and the complementary color filters 4 is within an appropriate range, which facilitates the formation of a uniformly colored gradient light spot or a monochromatic light spot.

[0076] As technicians in this industry can understand, the color compensation film 43 can also be installed between the pattern disk 9 and the light source 1, and located relatively close to the side of the pattern disk 9, that is, not adjacent to the corresponding filter 3. In this case, color compensation of the filter 3 can also be achieved.

Claims

1. A compensatory color mixing system comprising a light source, a light aperture provided on a main light path, three monochromatic annular filters arranged in parallel and spaced apart on an exit light path, and a drive device for driving the filters to rotate, wherein the three filters are a C filter, an M filter, and a Y filter, and the filters are provided with light-transmitting regions and color regions arranged in an annular pattern and connected end to end; characterized in that: It also includes at least one complementary color filter provided on the light output path, having the same color category as the filter and arranged parallel to and adjacent to the filter; The color zones of the filter include an annular color zone 1 and an annular color zone 2. The color zone 1 is a single-color 0-100% linear gradient area, and the color zone 2 is a single-color 100% area. The colors of the color zone 2 and the color zone 1 have a smooth transition. The light-transmitting area is located between the beginning of the color zone 1 and the end of the color zone 2. The shape, size and color area shape and size of the filter are the same as those of the complementary color film. The linear gradient direction of the color area of ​​the filter is opposite to that of the complementary color film in the light emitting direction. Part of the color area of ​​the complementary color film can be optionally stationary on the main light path.

2. A compensatory color mixing system according to claim 1, characterized in that: The linear gradient rate of the color zone of the filter is the same as or different from that of the complementary color filter in the light emitting direction.

3. The compensatory color mixing system according to claim 1, characterized in that: The radial width of the color zone is greater than the diameter of the light-through hole.

4. A compensatory color mixing system according to claim 3, characterized in that: Any circumferential width of the color zone 2 is greater than the diameter of the light-through hole.

5. The compensatory color mixing system according to claim 1, characterized in that: The distance d between the color-complementing plate and the filter is 1.5 mm ≤ d ≤ 6 mm.

6. The compensatory color mixing system according to claim 1, characterized in that: Part of the color area of ​​the complementary color film can be optionally arranged statically on the main light path, including the part of the color area being movable and cut into the main light path and then being arranged statically on the main light path.

7. A compensatory color mixing system according to claim 6, characterized in that: The partial color area can be movably cut into the main light path, including that the complementary color filter is swung into the main light path, and then the partial color area of ​​the complementary color filter is cut into the main light path by the rotation of the complementary color filter.

8. The compensatory color mixing system according to claim 6, characterized in that: The partial color area can be movably cut into the main light path, including the partial color area switching the main light path only through the rotation of the complementary color filter.

9. The compensatory color mixing system according to claim 8, characterized in that: The color-complementing plate is coaxial with the filter.

10. The compensatory color mixing system according to claim 8, characterized in that: The color-complementing plate and the filter are respectively arranged on both sides of the light-through hole.

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