A film optical projection magnification display device

Abstract

The utility model relates to a kind of film optical projection magnification display equipment including shell, light source, film transmission component, projection lens, display screen and multiple mirrors;Lower baffle and upper baffle are arranged in shell, illuminating beam hole is equipped on lower baffle, and imaging beam hole is equipped on upper baffle;Light source is installed at the bottom of shell;Film transmission component includes film guide support, sends film shaft and receives film shaft, film guide support is installed on the upper surface of lower baffle, and sends film shaft and receives film shaft are installed on film guide support to transmit film in parallel;Projection lens is installed on the lower surface of upper baffle corresponding imaging beam hole;Display screen is set in the front side of upper portion of shell;Multiple mirrors are installed on the upper portion of shell, to refract and project the image information obtained by projection lens to display screen.The utility model of a kind of film optical projection magnification display equipment can reduce the floor area of equipment while prolonging the image information projection distance on film.

Description

Technical Field

[0001] This utility model relates to the field of film projection equipment technology, and more specifically to a film optical projection magnification display device. Background Technology

[0002] Film projection equipment is a device that uses optical principles to project images or text information from film onto a screen. Based on the principle of optical projection, light emitted from a light source passes through the film and, through the action of a lens, ultimately forms a magnified and clear image on the screen.

[0003] When projecting information onto film, within a certain projection range, as the projection distance increases, the developed content on the film can be magnified and expanded more fully. Furthermore, the sharpness of the image edges is maintained through the transmission of the lens, ensuring the clarity of the magnified image. Therefore, film projection generally requires extending the projection distance. However, increasing the projection distance will lead to an increase in the footprint of the entire device, making the projection equipment more bulky.

[0004] Therefore, while ensuring that the magnified image of film projection is clear enough, how to provide a film optical projection display device that does not require an increased footprint and can extend the projection distance is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a film optical projection magnification display device to solve the technical problem that increasing the film projection distance will increase the overall equipment footprint of the film projection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A film optical projection magnification display device includes a housing, a light source, a film transport assembly, a projection lens, a display screen, and multiple reflectors. The housing contains a lower partition and an upper partition arranged parallel to each other at intervals. The lower partition has an illumination beam aperture, and the upper partition has an imaging beam aperture corresponding to the illumination beam aperture. The light source is mounted at the bottom of the housing corresponding to the illumination beam aperture to generate an illumination beam. The film transport assembly includes a film guide bracket, a film feed shaft, and a film take-up shaft. The film guide bracket is mounted on the upper surface of the lower partition, and the film feed shaft and take-up shaft are mounted parallel to each other on the film guide bracket to transport the film. The film is horizontally arranged corresponding to the illumination beam aperture. The projection lens is mounted on the lower surface of the upper partition corresponding to the imaging beam aperture, with its image acquisition end corresponding to the film. The display screen is located on the upper front side of the housing. The multiple reflectors are mounted on the upper part of the housing to project and refract the image information acquired by the projection lens onto the display screen.

[0007] Preferably, the film transport assembly further includes an unwinding motor and a rewinding motor, both of which are mounted on the other side of the film guide bracket, and their output shafts pass through the film guide bracket and are connected to the corresponding film feeding shaft and film taking shaft for transmission.

[0008] Furthermore, as described above, the film optical projection magnification display device also includes a condenser lens, which is horizontally arranged between the light source and the lower partition corresponding to the illumination beam aperture and is fixedly connected to the housing to converge the light emitted by the light source.

[0009] Furthermore, as described above, the film optical projection magnification display device also includes a film guide frame moving mechanism. The film guide frame moving mechanism includes a guide rail, a drive motor, and a transmission belt. The guide rail is fixed to the upper surface of the lower partition along the direction perpendicular to the film conveying direction, and has a drive shaft and a driven shaft at both ends. The transmission belt is wound around the drive shaft and the driven shaft along the direction of the guide rail. The drive motor is mounted on the lower partition and its output shaft is connected to the drive shaft. The film guide bracket is slidably connected to the guide rail and has a clamping plate on it. The clamping plate and the transmission belt clamp the film guide bracket to drive it to move.

[0010] Preferably, the reflector includes a first reflective glass lens and a second reflective glass lens. The first reflective glass lens is located above the imaging beam aperture and fixed on the housing. The second reflective glass lens is arranged inside the rear of the housing. The light emitted from the projection lens passes through the imaging beam aperture and is refracted by the first and second reflective glass lenses before being projected onto the display screen.

[0011] Furthermore, as described above, the film optical projection magnification display device also includes multiple guide shafts, which are arranged on the guide bracket between the film feeding shaft and the film receiving shaft and are arranged parallel to it.

[0012] Furthermore, as described above, the film optical projection magnification display device also includes transparent heat-insulating glass, which is horizontally arranged between the condenser lens and the lower partition and fixedly connected to the housing.

[0013] Furthermore, as described above, a film optical projection magnification display device also includes multiple support pillars, all of which are installed at the bottom of the housing.

[0014] Furthermore, the front side of the housing has an assembly port corresponding to the guide plate bracket.

[0015] Furthermore, as described above, a film optical projection magnification display device also includes a controller, which is electrically connected to the unwinding motor, the winding motor, and the drive motor.

[0016] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a film optical projection magnification display device, the main effects and advantages of which are: 1. By using multiple mirrors placed at different positions on the housing to reflect light multiple times, the projection distance of the image information on the film is extended while avoiding increasing the footprint of the entire device.

[0017] 2. When this device is not in use, the film guide bracket, film feed shaft, and film take-up shaft can be stored inside the housing via the film guide frame moving mechanism. The condenser lens and the lower partition are fixedly connected to the housing.

[0018] 3. Transparent heat-insulating glass can reduce the heat radiation emitted by the light source.

[0019] 4. Multiple guide shafts can be used to flatten and guide the unfolded film between the film feeding shaft and the film receiving shaft, so that the film is parallel to the illumination beam hole on the lower partition. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a film optical projection magnification display device according to the present invention; Figure 2 This is a schematic diagram of a film optical projection magnification display device after removing the housing; Figure 3 This is a schematic diagram of the film optical projection magnification display device of this utility model from another angle after removing the housing; Figure 4 This is a schematic diagram of the reflector assembled inside the housing in this utility model; Figure 5 This is a schematic diagram of the film transport assembly and the film guide frame moving mechanism assembled on the lower partition plate in this utility model; Figure 6 A schematic diagram of the guide plate moving mechanism mounted on the lower partition plate; Figure 7 for Figure 6 Schematic diagram of the lower partition; Figure 8 This is a schematic diagram of the light source being assembled on the housing in this utility model.

[0021] The attached diagram lists the components represented by each number as follows: 1-Housing, 2-Light source, 3-Film transport assembly, 4-Projection lens, 5-Display screen, 6-Reflector, 7-Condenser lens, 8-Screen guide frame moving mechanism, 9-Screen guide shaft, 10-Transparent heat-insulating glass, 11-Lower partition, 12-Upper partition, 31-Screen guide bracket, 32-Film feed shaft, 33-Film take-up shaft, 34-Take-up motor, 35-Unwind motor, 61-First reflective glass lens, 62-Second reflective glass lens, 81-Guide rail, 82-Drive motor, 83-Transmission belt, 84-Drive shaft, 85-Driven shaft, 86-Clamping plate, 110-Illumination beam aperture, 120-Imaging beam aperture. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] See appendix Figure 1 To be continued Figure 8 According to an embodiment of the present invention, a film optical projection magnification display device includes a housing 1, a light source 2, a film transport assembly 3, a projection lens 4, a display screen 5, and multiple reflectors 6. A lower partition 11 and an upper partition 12 are arranged parallel to each other at intervals within the housing 1. The lower partition 11 has an illumination beam aperture 110, and the upper partition 12 has an imaging beam aperture 120 corresponding to the illumination beam aperture 110. The light source 2 is installed at the bottom of the housing 1 corresponding to the illumination beam aperture 110 to generate an illumination beam. The film transport assembly 3 includes a film guide bracket. 31. A film feed shaft 32 and a film take-up shaft 33 are mounted on the upper surface of the lower partition 11. The film feed shaft 32 and the film take-up shaft 33 are mounted parallel to each other on the film guide bracket 31 to transport the film. The film is arranged horizontally corresponding to the illumination beam aperture 110. A projection lens 4 is mounted on the lower surface of the upper partition 12 corresponding to the imaging beam aperture 120, and its image acquisition end corresponds to the film. A display screen 5 is located on the upper front side of the housing 1. Multiple reflectors 6 are mounted on the upper part of the housing 1 to refract and project the image information obtained by the projection lens 4 onto the display screen 5. Specifically, an assembly port corresponding to the film guide bracket 31 is opened on the front side of the housing 1.

[0024] According to the embodiments of the present invention, the film optical projection magnification display device projects the image information on the film onto the display screen 5, while extending the projection distance through the refraction of multiple reflectors 6, and also avoids increasing the footprint of the entire device.

[0025] The rear end of the projection lens 4 is positioned opposite the film, while its front end, the projection end, faces upward to project the image information on the film onto the reflector 6. The projection lens 4 achieves high-definition magnification, with a magnification up to 20 times, fully preserving the details of the film image. This facilitates observation of image details and is unaffected by the resolution of the camera or display, as it avoids signal processing by cameras and maintains the original details.

[0026] In some specific examples, the film transport assembly 3 also includes an unwinding motor 34 and a take-up motor 35, both of which are mounted on the other side of the film guide bracket 31, and their output shafts pass through the film guide bracket 31 and are connected to the corresponding film feed shaft 32 and film take-up shaft 33.

[0027] The unwinding motor 34 and the take-up motor 35 can drive the film feeding shaft 32 and the film take-up shaft 33 to rotate, thus increasing the automation level of this device.

[0028] In some specific examples, a focusing lens 7 may also be included, which is horizontally arranged between the light source 2 and the lower partition 11 and is fixedly connected to the housing 1 to focus the light emitted by the light source 2.

[0029] Specifically, the focusing lens 7 consists of two lenses, both of which are Fresnel lenses.

[0030] In some embodiments, a guide film holder moving mechanism 8 may also be included. The guide film holder moving mechanism 8 includes a guide rail 81, a drive motor 82, and a transmission belt 83. The guide rail 81 is fixed on the upper surface of the lower partition 11 along the direction perpendicular to the film conveying direction. It has a drive shaft 84 and a driven shaft 85 at both ends. The transmission belt 83 is wound around the drive shaft 84 and the driven shaft 85 along the direction of the guide rail 81. The drive motor 82 is mounted on the lower partition 11 and its output shaft is connected to the drive shaft 84. The guide film holder 31 is slidably connected to the guide rail 81 and has a clamping plate 86 on it. The clamping plate 86 clamps the transmission belt 83 to drive the guide film holder 31 to move.

[0031] The drive motor 82 runs, and its output shaft drives the transmission belt 83 through the drive shaft 84 and the driven shaft 85. The transmission belt 83 drives the guide plate bracket 31 to move through the clamping plate 86.

[0032] In some specific examples, the reflector 6 includes a first reflective glass lens 61 and a second reflective glass lens 62. The first reflective glass lens 61 is positioned above the imaging beam aperture 120 and fixed to the housing 1. The second reflective glass lens 62 is arranged inside the rear of the housing 1. The light emitted from the projection lens 4 passes through the imaging beam aperture 120 and is refracted by the first reflective glass lens 61 and the second reflective glass lens 62 before being projected onto the display screen 5.

[0033] The projection distance of the light emitted from the projection lens 4 is extended by the first reflective glass lens 61 and the second reflective glass lens 62 installed at different positions on the housing 1, thereby magnifying the image information on the film and projecting it onto the display screen 5.

[0034] In other specific examples, multiple guide shafts 9 may also be included, arranged on and parallel to the film guide bracket 31 between the film feed shaft 32 and the film take-up shaft 33. The guide shafts 9 guide the rolled film so that the film is parallel to the illumination beam aperture 110.

[0035] In other specific examples, a transparent heat-insulating glass 10 is also included, which is horizontally arranged between the condensing lens 7 and the lower partition 11 and fixedly connected to the housing 1. The transparent heat-insulating glass 7 allows light emitted from the light source 2 to pass through while reducing its heat radiation.

[0036] Specifically, it also includes multiple support pillars, all of which are installed at the bottom of the housing 1 to stably support the housing.

[0037] Specifically, it may also include a controller, which is electrically connected to the unwinding motor 34, the winding motor 35 and the drive motor 82.

[0038] When in use, the light beam emitted by the light source is focused by a Fresnel lens and then passes through transparent heat-insulating glass to reduce heat radiation. It then passes through the illumination beam hole on the lower partition, and then passes from bottom to top through the film and projection lens on the guide shaft. The light beam then passes through the illumination beam hole on the upper partition and is reflected by the first and second reflective glass mirrors, which project the image information captured on the film by the projection lens onto the display screen.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film optical projection magnification display device, characterized in that, include: The housing (1) has a lower partition (11) and an upper partition (12) arranged in parallel and spaced apart. The lower partition (11) is provided with an illumination beam hole (110), and the upper partition (12) is provided with an imaging beam hole (120) arranged corresponding to the illumination beam hole (110). A light source (2) is installed at the bottom of the housing (1) corresponding to the illumination beam hole (110) to generate an illumination beam; The film transport assembly (3) includes a film guide bracket (31), a film feed shaft (32), and a film take-up shaft (33). The film guide bracket (31) is mounted on the upper surface of the lower partition (11). The film feed shaft (32) and the film take-up shaft (33) are mounted parallel to each other on the film guide bracket (31) to transport the film. The film is arranged horizontally corresponding to the illumination beam aperture (110). The projection lens (4) is installed on the lower surface of the upper partition (12) corresponding to the imaging beam hole (120), and its image acquisition end is opposite to the film; Display screen (5), the display screen (5) is disposed on the upper front side of the housing (1); Multiple reflectors (6) are mounted on the upper part of the housing (1) to refract and project the image information obtained by the projection lens (4) onto the display screen (5).

2. The film optical projection magnification display device according to claim 1, characterized in that, The film transport assembly (3) also includes an unwinding motor (34) and a rewinding motor (35). The unwinding motor (34) and the rewinding motor (35) are both installed on the other side of the film guide bracket (31), and the output shaft passes through the film guide bracket (31) and is connected to the corresponding film feeding shaft (32) and film taking shaft (33) for transmission.

3. The film optical projection magnification display device according to claim 2, characterized in that, It also includes a focusing lens (7), which is horizontally arranged between the light source (2) and the lower partition (11) corresponding to the illumination beam hole (110) and is fixedly connected to the housing (1) to focus the light emitted by the light source (2).

4. The film optical projection magnification display device according to claim 3, characterized in that, It also includes a guide frame moving mechanism (8), which includes a guide rail (81), a drive motor (82) and a transmission belt (83). The guide rail (81) is fixed on the upper surface of the lower partition (11) along the direction perpendicular to the film conveying direction, and has a drive shaft (84) and a driven shaft (85) at both ends. The transmission belt (83) is wound around the drive shaft (84) and the driven shaft (85) along the direction of the guide rail (81). The drive motor (82) is mounted on the lower partition (11) and its output shaft is connected to the drive shaft (84). The guide frame bracket (31) is slidably connected to the guide rail (81) and has a clamping plate (86) on it. The clamping plate (86) clamps the transmission belt (83) to drive the guide frame bracket (31) to move.

5. A film optical projection magnification display device according to claim 4, characterized in that, The reflector (6) includes a first reflective glass lens (61) and a second reflective glass lens (62). The first reflective glass lens (61) is located above the imaging beam aperture (120) and fixed on the housing (1). The second reflective glass lens (62) is arranged inside the rear of the housing (1). The light emitted from the projection lens (4) passes through the imaging beam aperture (120) and is refracted by the first reflective glass lens (61) and the second reflective glass lens (62) before being projected onto the display screen (5).

6. A film optical projection magnification display device according to claim 4, characterized in that, It also includes multiple guide shafts (9), which are arranged on the guide bracket (31) between the film feeding shaft (32) and the film receiving shaft (33) and are arranged parallel to it.

7. The film optical projection magnification display device according to claim 4, characterized in that, It also includes transparent heat-insulating glass (10), which is horizontally arranged between the condenser lens (7) and the lower partition (11) and fixedly connected to the housing (1).

8. A film optical projection magnification display device according to claim 4, characterized in that, It also includes multiple support pillars, all of which are installed at the bottom of the housing (1).

9. A film optical projection magnification display device according to any one of claims 1-8, characterized in that, The front side of the housing (1) has an assembly port corresponding to the guide plate bracket (31).

10. A film optical projection magnification display device according to any one of claims 4-8, characterized in that, It also includes a controller that is electrically connected to the unwinding motor (34), the winding motor (35) and the drive motor (82).

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