Film motion device and method for combining images

Abstract

The application relates to a film motion exposure device and method of a combined image, which comprises a first image projection mechanism, a second image projection mechanism, a film motion mechanism and a processor. The first image projection mechanism is used for continuously projecting a first image area of each frame image to a first image exposure area; the second image projection mechanism is used for continuously projecting a second image area of each frame image to a second image exposure area; the film mechanism is used for driving the film to pass through the first image exposure area and the second image exposure area in sequence, and the first image area and the second image area of the same frame image are exposed on the film in a manner that the edges are flush and seamlessly connected; and the processor controls the first image projection mechanism and the second image projection mechanism to project the images in a time interval. In the application, the frame image is in a splicing mode of double exposure fields in the transverse direction, and the frame image is in a mode of rolling scanning and accumulated pixel exposure in the longitudinal direction, so that a high-resolution and large-size film exposure image is realized.

Description

Technical Field

[0001] This invention relates to the field of film exposure technology, and in particular to a film motion device and method for combining images. Background Technology

[0002] Digital exposure using moving film for information recording and storage is a traditional yet novel storage method. The recording medium is photosensitive film, which has a relatively long length. During the exposure process, roll-to-roll film moves at high speed via a motor. The light source is visible light, requiring the use of a Digital Micromirror Device (DMD) chip and DLP technology. An illumination system guides the light from the light source onto the DMD chip, where it is reflected by numerous tiny mirrors and imaged by a lens. Finally, the pattern formed by the deflection of the DMD chip is transferred to the moving film. However, the film has a limited width in the non-moving direction. To obtain higher resolution pixels and larger image sizes within this limited width, a single exposure is insufficient. For example, a current 0.95” DMD has 1920×1080 pixels. For 4K resolution images, multiple exposures and image stitching are required. On the other hand, although the photosensitive process also involves roll-to-roll film movement driven by a motor, it is usually a discrete, non-continuous frame-by-frame exposure, which cannot achieve high-speed data refresh and continuous image projection. Existing frame-by-frame exposures have limited image resolution. To achieve higher resolution, one approach is to choose a DMD chip with a higher physical resolution. However, the physical resolution of current DMD chips has an upper limit, and their price is increasingly expensive. Another approach is to use a rolling scan exposure method, which achieves higher resolution and larger image size through the accumulation of pixels within a frame. This method can economically and flexibly achieve higher resolution and larger image sizes.

[0003] When film moves at high speed, continuous exposure is required, and images need to be stitched together to obtain high resolution and large size. Within a limited space, the exposure engine, lens barrel, and film transport mechanism are mutually constrained, making free image stitching inflexible. Furthermore, because film is a soft material, if the exposure area is stretched too much, film fluctuations can cause pixel blurring. How to obtain larger-size and higher-resolution bitmaps on moving film is a pressing technical problem that needs to be solved in this field. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is how to obtain a larger size and higher resolution bitmap by rolling scanning exposure on moving film, time-division exposure stitching of images, and combination of images output by multi-optical equipment.

[0005] To solve the above-mentioned technical problems, the present invention provides a film motion exposure apparatus for combining images, comprising:

[0006] An exposure station, comprising a first image exposure area and a second image exposure area, wherein the first image exposure area and the second image exposure area are disposed separately and can be seamlessly connected after moving relative to each other a set distance along a set direction;

[0007] A first image projection mechanism is used to continuously project the first image area of ​​each frame image onto the first image exposure area.

[0008] The second image projection mechanism is used to continuously project the second image area of ​​each frame image onto the second image exposure area;

[0009] A film movement mechanism is provided, wherein the film mechanism is used to carry the film and drive the film to pass sequentially through the first image exposure area and the second image exposure area along the set direction. The first image area of ​​each frame image is scrolled and scanned on the film passing through the first image exposure area in a way that accumulates pixels within the frame. The second image area of ​​each frame image is scrolled and scanned on the film passing through the second image exposure area in a way that accumulates pixels within the frame. The edges of the first image area and the second image area of ​​the same frame image are flush and seamlessly connected on the film.

[0010] The processor is communicatively connected to the first image projection mechanism, the second image projection mechanism, and the film motion mechanism. The processor is used to transmit bitmap stream signals to the first image projection mechanism and the second image projection mechanism, control the first image projection mechanism and the second image projection mechanism to project images sequentially at a set time interval, and control the film motion mechanism to transport the film.

[0011] In one embodiment of the present invention, the first image area and the second image area of ​​each frame are both half-frame images.

[0012] In one embodiment of the present invention, the film passing through the first image exposure area and the second image exposure area travels along the positive X-axis direction and is perpendicular to the Y-axis direction. The first image projection mechanism projects an image onto the first image exposure area through a first reflector, and the second image projection mechanism projects an image onto the second image exposure area through a second reflector. The optical axes of the first image projection mechanism and the second image projection mechanism are both in the X-axis direction, and the reflecting surfaces of the first reflector and the second reflector are both at a 45-degree angle to the X-axis direction.

[0013] In one embodiment of the present invention, the edge of the first reflector facing the positive X-axis is spaced a certain distance from the edge of the second reflector facing the negative X-axis; the edge of the first reflector facing the positive Y-axis is flush with or not flush with the edge of the second reflector facing the positive Y-axis; the edge of the first reflector facing the negative Y-axis is flush with or not flush with the edge of the second reflector facing the negative Y-axis; the edge of the first reflector facing the positive Z-axis is flush with or not flush with the edge of the second reflector facing the positive Z-axis; and the edge of the first reflector facing the negative Z-axis is flush with or not flush with the edge of the second reflector facing the negative Z-axis.

[0014] In one embodiment of the present invention, the distance between the first image projection mechanism and the first reflector is L1, the distance between the first reflector and the exposure surface of the film is L2, the distance between the second image projection mechanism and the second reflector is L3, and the distance between the second reflector and the exposure surface of the film is L4, where L1+L2=L3+L4.

[0015] In one embodiment of the present invention, L1 and L2 are not equal, and L3 and L4 are not equal.

[0016] In one embodiment of the present invention, the first image projection mechanism includes a first laser, a first illumination system, a first DMD chip system, a first lens, and a first DMD control board. The first laser is used to emit laser light, and the first illumination system, the first DMD chip system, and the first lens are used to form a pattern and project the pattern. The first DMD control board is used to load a bitmap stream and drive the first DMD chip system to deflect. The second image projection mechanism includes a second laser, a second illumination system, a second DMD chip system, a second lens, and a second DMD control board. The second laser is used to emit laser light, and the second illumination system, the second DMD chip system, and the second lens are used to form a pattern and project the pattern. The second DMD control board is used to load a bitmap stream and drive the second DMD chip system to deflect. The processor is communicatively connected to the first laser and the second laser, and controls the switching, light emission, and light power of the first laser and the second laser. The processor is also communicatively connected to the first DMD control board and the second DMD control board, and transmits the bitmap to be exposed to the first DMD control board and the second DMD control board.

[0017] In one embodiment of the present invention, a water chiller is further included, wherein the cooling pipes of the first laser, the first DMD chip system, the second DMD chip system and the second laser are connected in sequence, the cooling pipe of the first laser is connected to the outlet of the water chiller and the cooling pipe of the second laser is connected to the inlet of the water chiller.

[0018] In one embodiment of the present invention, the film motion mechanism includes a motor and a motor control board. The motor drives the film roll to rotate and unwind, the motor control board drives the motor, and the processor is communicatively connected to the motor control board. The processor sends motion control signals to the motor control board and receives feedback motion counting signals.

[0019] The present invention also provides a method for film motion exposure of combined images, comprising the following steps:

[0020] S1. Provides the film motion exposure apparatus as described above;

[0021] S2, The processor controls the first image projection mechanism, the second image projection mechanism and the film motion mechanism to start and transmits the bitmap stream signal to the first image projection mechanism and the second image projection mechanism;

[0022] S2. The first image projection mechanism loads a bitmap stream and continuously projects the first image area of ​​each frame image onto the film passing through the first image exposure area in a rolling scan manner with intra-frame pixel accumulation. During this process, when the edge of each first image area facing the film movement direction is aligned with the edge of the second image exposure area facing away from the film movement direction, the second image projection mechanism loads a bitmap stream and continuously projects the second image area of ​​each frame image onto the film passing through the second image exposure area in a rolling scan manner with intra-frame pixel accumulation. The edges of the first image area and the second image area of ​​the same frame image are aligned and seamlessly connected on the film.

[0023] The technical solution of the present invention has the following advantages compared with the prior art:

[0024] 1) The film motion device for combining images described in this invention employs dual DLP optical engine output image exposure, improving the efficiency of high-speed film motion exposure. Each frame image is divided into a first image area and a second image area, with differences in the start and end times of their exposures, thus reducing the gap between the first and second image areas and the distance between the image exposure areas of the two lenses on the film. The horizontal direction of the frame images uses a dual-exposure field stitching method, while the vertical direction uses a rolling scan and pixel-accumulating exposure method, achieving high-resolution, large-size film exposure images.

[0025] 2) The film motion device for combining images described in this invention sets two mirrors at different positions and angles between the DLP lens and the film. Through the spatial arrangement of the mirrors, the turning of the DLP lens and the structural device is realized, saving space. At the same time, it is easier to reduce the gap between the first image area and the second image area and reduce the distance between the two lenses on the image exposure area of ​​the film.

[0026] 3) The film motion device for combining images described in this invention uses UV wavelength laser light source output and DLP exposure technology to expose the moving film, thereby realizing information recording and storage. Attached Figure Description

[0027] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the film motion device for combining images in Embodiment 1 of the present invention;

[0029] Figure 2 This is a schematic diagram showing the positional relationship between the first image exposure area and the second image exposure area in Embodiment 1 of the present invention;

[0030] Figure 3 This is an X-axis view of the first and second image exposure areas in Embodiment 1 of the present invention;

[0031] Figure 4 This is a Z-axis view of the first and second image exposure areas in Embodiment 1 of the present invention;

[0032] Figure 5 In Embodiment 1 of the present invention, the first image area begins scrolling scan, while the second image area does not begin scrolling scan in the Y-axis direction view;

[0033] Figure 6 This is a Y-axis view of the second image area starting to scroll during a period of time in Embodiment 1 of the present invention.

[0034] Figure 7 This is a Y-axis view of the second image area after the first image area has finished its scrolling scan in Embodiment 1 of the present invention, and after a period of scrolling scan.

[0035] Figure 8 This is a Y-axis view showing the completion of the scrolling scan of both the first and second image areas in Embodiment 1 of the present invention.

[0036] Figure 9 This is a schematic diagram showing the positional relationship between the first image exposure area and the second image exposure area in Embodiment 2 of the present invention;

[0037] Figure 10 This is an X-axis view of the first and second image exposure areas in Embodiment 2 of the present invention;

[0038] Figure 11 This is a Z-axis view of the first and second image exposure areas in Embodiment 2 of the present invention.

[0039] Explanation of reference numerals in the accompanying drawings: 01, First image area; 02, Second image area; 03, Film; 1, First image exposure area; 2, Second image exposure area; 3, First image projection mechanism; 31, First laser; 32, First illumination system; 33, First DMD chip system; 34, First lens; 35, First DMD control board; 4, Second image projection mechanism; 41, Second laser; 42, Second illumination system; 43, Second DMD chip system; 44, Second lens; 45, Second DMD control board; 5, Film movement mechanism; 51, Motor; 52, Motor control board; 6, Processor; 7, First reflector; 8, Second reflector; 9, Water chiller. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0041] Example 1

[0042] See Figures 1 to 4 As shown, a film motion exposure apparatus for combining images includes:

[0043] The exposure station includes a first image exposure area 1 and a second image exposure area 2. The first image exposure area 1 and the second image exposure area 2 are set apart and can be seamlessly connected after moving relative to each other a set distance along a set direction.

[0044] The first image projection mechanism 3 is used to continuously project the first image area 01 of each frame image onto the first image exposure area 1.

[0045] The second image projection mechanism 4 is used to continuously project the second image area 02 of each frame image onto the second image exposure area 2.

[0046] Film movement mechanism 5, the film mechanism 5 is used to carry film 03 and drive film 03 to pass through the first image exposure area 1 and the second image exposure area 2 in sequence along the set direction. The first image area 01 of each frame image is scrolled and scanned on film 03 passing through the first image exposure area 1 in the manner of intra-frame pixel accumulation. The second image area 02 of each frame image is scrolled and scanned on film 03 passing through the second image exposure area 2 in the manner of intra-frame pixel accumulation. The first image area 01 and the second image area 02 of the same frame image are exposed on film 03 with flush edges and seamless connection.

[0047] The processor 6 is communicatively connected to the first image projection mechanism 3, the second image projection mechanism 4, and the film motion mechanism 5. The processor 6 is used to transmit bitmap stream signals to the first image projection mechanism 3 and the second image projection mechanism 4, control the first image projection mechanism 3 and the second image projection mechanism 4 to project images sequentially at a set time interval, and control the film motion mechanism 5 to transport film.

[0048] The processor transmits the bitmap to be exposed to the first and second image projection mechanisms. The film is conveyed by the film movement mechanism, moving at a constant speed. During the exposure process, the first projection mechanism starts and ends image projection first, followed by the second projection mechanism. Employing dual DLP optical engine outputs improves the efficiency of high-speed film movement exposure. Each frame is divided into a first image area and a second image area, with different start and end times for their exposures, thus reducing the gap between the first and second image areas and the distance between the image exposure areas of the two lenses on the film. The horizontal direction of the frame images uses a double-exposure field stitching method, while the vertical direction uses a rolling scan and pixel-accumulating exposure method, achieving high-resolution, large-size film exposure images.

[0049] In this preferred embodiment, the first image region 01 and the second image region 02 of each frame are both half-frame images. Specifically, the first image region and the second image region of each frame are the lower half-frame and the upper half-frame of each frame, respectively.

[0050] In this preferred embodiment, the film 03, passing through the first image exposure area 1 and the second image exposure area 2, travels along the positive X-axis and is perpendicular to the Y-axis. The first image projection mechanism 3 projects the image onto the first image exposure area 1 through the first reflector 7, and the second image projection mechanism 4 projects the image onto the second image exposure area 2 through the second reflector 8. The optical axes of the first image projection mechanism 3 and the second image projection mechanism 4 are both in the X-axis direction, and the reflecting surfaces of the first reflector 7 and the second reflector 8 are both at a 45-degree angle to the X-axis direction.

[0051] The volume of the first reflector is smaller than the volume of the first image projection mechanism, and the volume of the second reflector is smaller than the volume of the second image projection mechanism. The first image exposure area and the second image exposure area are located below the first reflector and the second reflector. The distance between the first image exposure area and the second image exposure area measured along the Z-axis is more likely to approach zero.

[0052] In a preferred embodiment of this invention, the edge of the first reflector 7 facing the positive X-axis is spaced a certain distance from the edge of the second reflector 8 facing the negative X-axis. The edges of the first reflector 7 and the second reflector 8 facing the positive Y-axis may be flush or not flush, as may the edges of the first reflector 7 and the second reflector 8 facing the negative Y-axis. Similarly, the edges of the first reflector 7 and the second reflector 7 facing the positive Z-axis and the negative Z-axis may be flush or not flush. The positional relationship between the first and second reflectors can be set according to their actual shapes and structures, as long as the first image exposure area corresponding to the first reflector and the second image exposure area corresponding to the second reflector meet the requirements.

[0053] In this preferred embodiment, the distance between the first image projection mechanism 3 and the first reflector 7 is L1, the distance between the first reflector 7 and the exposure surface of the film 03 is L2, the distance between the second image projection mechanism 4 and the second reflector 8 is L3, and the distance between the second reflector 8 and the exposure surface of the film 03 is L4. L1 + L2 = L3 + L4, L1 and L2 are equal, and L3 and L4 are equal.

[0054] In a preferred embodiment of this example, the first image projection mechanism 3 includes a first laser 31, a first illumination system 32, a first DMD chip system 33, a first lens 34, and a first DMD control board 35. The first laser 31 emits laser light, the first illumination system 32, the first DMD chip system 33, and the first lens 34 form a pattern and project the pattern, and the first DMD control board 35 loads a bitmap stream and drives the first DMD chip system 33 to deflect. The second image projection mechanism 4 includes a second laser 41, a second illumination system 42, a second DMD chip system 43, a second lens 44, and a second DMD control board 45. Laser emitter 41 emits laser light. The second illumination system 42, the second DMD chip system 43, and the second lens 44 form and project patterns. The second DMD control board 45 loads bitmap streams and drives the second DMD chip system 43 to deflect. The processor 6 is communicatively connected to the first laser 31 and the second laser 41, controlling their switching, light output, and optical power. The processor 6 is also communicatively connected to the first DMD control board 35 and the second DMD control board 45, transmitting the bitmap to be exposed to both boards. The first and second lasers each output 405nm wavelength laser light, which is transmitted via optical fiber to illuminate the DMD reflective chip in the DMD assembly. The lasers communicate with the processor via RS485 or other serial ports, and the processor controls their switching, light output, and optical power. The processor transmits the bitmap to be exposed to the first DMD control board and the second DMD control board. The first and second DMD control boards load the bitmap and drive the first and second DMD chips to deflect, forming a pattern. This pattern is then reduced in size and exposed onto the film through the first and second lenses. The film is driven by a motor and moves at a constant speed. The motor is controlled by a motor control board, which establishes a communication connection with the processor, receives motion control signals from the processor, and feeds back motion counting signals to the processor. After the first and second DMD control boards load the bitmap stream, the processor calls the trigger signals provided internally by the first and second DMD control boards via a gigabit network port, causing the first and second DMD chip systems to flip and project the image.

[0055] In a preferred embodiment of this invention, a water chiller 9 is further included. The cooling pipes of the first laser 31, the first DMD chip system 33, the second DMD chip system 43, and the second laser 41 are sequentially connected. The cooling pipe of the first laser 31 is connected to the outlet of the water chiller 9, and the cooling pipe of the second laser 41 is connected to the inlet of the water chiller 9. After water is discharged from the water chiller, it flows through a water pipe to the inlet of the first laser. The outlet of the first laser is connected to the inlet of the first cooling plate in the first DMD chip system. Simultaneously, the outlet of the first cooling plate is connected through a water pipe to the inlet of the second cooling plate in the second DMD chip system. The outlet of the second cooling plate is connected to the inlet of the second laser, and the outlet of the second laser is connected to the return water outlet of the water chiller.

[0056] In a preferred embodiment of this invention, the film motion mechanism 5 includes a motor 51 and a motor control board 52. The motor 51 drives the film roll to rotate and unwind, and the motor control board 52 drives the motor 51. The processor 6 is communicatively connected to the motor control board 52, and the processor 6 sends motion control signals to the motor control board 52 and receives feedback motion counting signals.

[0057] See Figures 5 to 8 As illustrated in the illustration, a method for film motion exposure of combined images includes the following steps:

[0058] S1. Provide the film motion exposure device as described above;

[0059] S2. The processor 6 controls the first image projection mechanism 3, the second image projection mechanism 4, and the film motion mechanism 5 to start and transmit the bitmap stream signal to the first image projection mechanism 3 and the second image projection mechanism 4.

[0060] S2. The first image projection mechanism 3 loads a bitmap stream and continuously projects the first image area 01 of each frame image onto the film 03 that has passed through the first image exposure area 1 in a rolling scan manner. During this process, when the edge of each first image area 01 facing the film movement direction is aligned with the edge of the second image exposure area 2 facing away from the film movement direction, the second image projection mechanism 4 loads a bitmap stream and continuously projects the second image area 02 of each frame image onto the film 03 that has passed through the second image exposure area 2 in a rolling scan manner. The edges of the first image area 01 and the second image area 02 of the same frame image are aligned and seamlessly connected on the film 03.

[0061] Figure 5In the middle, the first image area of ​​the frame image enters the first image exposure area and begins rolling exposure. The second image area has not yet entered the second image exposure area. At this moment, the second DMD control board has not yet loaded and triggered the signal, so the second lens has no light emission.

[0062] Figure 6 As the film moves, the first image area has rolled and been exposed for a certain distance, and the second image area begins to enter the second image exposure area, and the image in the second image area begins to be exposed.

[0063] Figure 7 In the process, as the film continues to move, the first image area has been fully exposed, while the second image area continues to be exposed.

[0064] Figure 8 As the film continues to move, the first image area has crossed the first image exposure area, and the second image area has just completed its rolling exposure, thus forming a complete frame image.

[0065] By combining the exposure of the first and second image areas and their respective rolling scans, the image size is increased and the resolution is improved.

[0066] Example 2

[0067] See Figures 9 to 11 As shown in the illustration, the rest is the same as in Embodiment 1, except that the distance between the first image projection mechanism 3 and the first reflector 7 is L1, the distance between the first reflector 7 and the exposure surface of the film 03 is L2, the distance between the second image projection mechanism 4 and the second reflector 8 is L3, and the distance between the second reflector 8 and the exposure surface of the film 03 is L4. L1+L2=L3+L4, L1 is less than L2, and L3 is greater than L4.

[0068] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A film motion exposure apparatus for combining images, characterized in that, include: An exposure station, which includes a first image exposure area and a second image exposure area, wherein the first image exposure area and the second image exposure area are set apart and can be seamlessly connected after moving a set distance relative to each other along the X-axis; A first image projection mechanism is used to continuously project the first image area of ​​each frame image onto the first image exposure area. The second image projection mechanism is used to continuously project the second image area of ​​each frame image onto the second image exposure area; A film motion mechanism is used to carry the film and drive the film to move at a constant speed along the positive X-axis and pass through the first image exposure area and the second image exposure area in sequence. The film is perpendicular to the Y-axis direction. The first image area of ​​each frame image is rolled and scanned on the film passing through the first image exposure area in a way that accumulates pixels within the frame. The second image area of ​​each frame image is rolled and scanned on the film passing through the second image exposure area in a way that accumulates pixels within the frame. The edges of the first image area and the second image area of ​​the same frame image are flush and seamlessly connected on the film. The processor is communicatively connected to the first image projection mechanism, the second image projection mechanism, and the film motion mechanism. The processor is used to transmit bitmap stream signals to the first image projection mechanism and the second image projection mechanism, control the first image projection mechanism and the second image projection mechanism to project images sequentially at a set time interval, and control the film motion mechanism to transport film. In this design, the first image projection mechanism projects an image onto the first image exposure area via a first reflector, and the second image projection mechanism projects an image onto the second image exposure area via a second reflector. The optical axes of both the first and second image projection mechanisms are in the X-axis direction. The reflecting surfaces of both the first and second reflectors are at a 45-degree angle to the X-axis direction. The edge of the first reflector facing the positive X-axis direction is spaced a certain distance from the edge of the second reflector facing the negative X-axis direction.

2. The film motion exposure apparatus according to claim 1, characterized in that, The first and second image areas of each frame are both half-frame images.

3. The film motion exposure apparatus according to claim 1, characterized in that, The edge of the first reflector facing the positive Y-axis may be flush with or not flush with the edge of the second reflector facing the positive Y-axis; the edge of the first reflector facing the negative Y-axis may be flush with or not flush with the edge of the second reflector facing the negative Y-axis; the edge of the first reflector facing the positive Z-axis may be flush with or not flush with the edge of the second reflector facing the positive Z-axis; and the edge of the first reflector facing the negative Z-axis may be flush with or not flush with the edge of the second reflector facing the negative Z-axis.

4. The film motion exposure apparatus according to claim 1, characterized in that, The distance between the first image projection mechanism and the first reflector is L1, the distance between the first reflector and the exposure surface of the film is L2, the distance between the second image projection mechanism and the second reflector is L3, and the distance between the second reflector and the exposure surface of the film is L4, where L1+L2=L3+L4.

5. The film motion exposure apparatus according to claim 4, characterized in that, L1 and L2 are not equal, and L3 and L4 are not equal.

6. The film motion exposure apparatus according to claim 1, characterized in that, The first image projection mechanism includes a first laser, a first illumination system, a first DMD chip system, a first lens, and a first DMD control board. The first laser is used to emit laser light, and the first illumination system, the first DMD chip system, and the first lens are used to form a pattern and project the pattern. The first DMD control board is used to load a bitmap stream and drive the first DMD chip system to deflect. The second image projection mechanism includes a second laser, a second illumination system, a second DMD chip system, a second lens, and a second DMD control board. The second laser is used to emit laser light, and the second illumination system, the second DMD chip system, and the second lens are used to form a pattern and project the pattern. The second DMD control board is used to load a bitmap stream and drive the second DMD chip system to deflect. The processor is communicatively connected to the first laser and the second laser. The processor controls the switching, light emission, and light power of the first laser and the second laser. The processor is also communicatively connected to the first DMD control board and the second DMD control board. The processor transmits the bitmap to be exposed to the first DMD control board and the second DMD control board.

7. The film motion exposure apparatus according to claim 6, characterized in that, It also includes a water chiller, and the cooling pipes of the first laser, the first DMD chip system, the second DMD chip system and the second laser are connected in sequence. The cooling pipe of the first laser is connected to the outlet of the water chiller and the cooling pipe of the second laser is connected to the inlet of the water chiller.

8. The film motion exposure apparatus according to claim 1, characterized in that, The film motion mechanism includes a motor and a motor control board. The motor drives the film roll to rotate and unwind. The motor control board drives the motor. The processor is communicatively connected to the motor control board. The processor sends motion control signals to the motor control board and receives feedback motion counting signals.

9. A method for film motion exposure of combined images, characterized in that, The steps include the following: S1. Providing a film motion exposure apparatus as described in any one of claims 1 to 8; S2, The processor controls the first image projection mechanism, the second image projection mechanism and the film motion mechanism to start and transmits the bitmap stream signal to the first image projection mechanism and the second image projection mechanism; S2. The first image projection mechanism loads a bitmap stream and continuously projects the first image area of ​​each frame image onto the film passing through the first image exposure area in a rolling scan manner with intra-frame pixel accumulation. During this process, when the edge of each first image area facing the film movement direction is aligned with the edge of the second image exposure area facing away from the film movement direction, the second image projection mechanism loads a bitmap stream and continuously projects the second image area of ​​each frame image onto the film passing through the second image exposure area in a rolling scan manner with intra-frame pixel accumulation. The edges of the first image area and the second image area of ​​the same frame image are aligned and seamlessly connected on the film.

Images