A collection device and a projection system

Abstract

The present application relates to the field of image acquisition, more particularly, to an acquisition device and a projection system. The acquisition device comprises a device shell, an acquisition surface, a lens and a camera, the acquisition surface is installed on the front side wall of the device shell; the lens is arranged inside the device shell and forms an included angle with the acquisition surface, the included angle is an acute angle, and the image acquired by the acquisition surface forms a mirror image on the lens; and the camera is used for acquiring the mirror image. The camera of the acquisition device of the present application indirectly acquires the image by acquiring the mirror image, and in the device shell with limited space position, the distance between the image to be acquired and the camera is enlarged by the lens, without actually increasing the distance between the camera and the acquisition surface, thereby saving the overall volume of the acquisition device.

Description

Technical Field

[0001] This invention relates to the field of image acquisition, and more specifically, to an acquisition device and a projection system. Background Technology

[0002] A webcam typically has basic functions such as video recording / transmission and still image capture. It captures images through a lens, and then the photosensitive components and control components inside the webcam process the images and convert them into digital signals that can be recognized by a computer. The signals are then input to a computer via a parallel port or USB connection, and the software then reconstructs the images to obtain the captured or recorded images.

[0003] Generally, cameras have a field of view, meaning that the camera lens can only clearly capture or collect images within a certain angle and distance. When the angle of the camera's field of view is fixed, the farther the image is from the camera, the larger the range the camera can capture; conversely, when the distance of the camera's field of view is fixed, the larger the angle of the field of view, the larger the range that can be captured.

[0004] When the area to be captured is large, and the camera's field of view is fixed and cannot be increased, it is necessary to increase the distance between the camera and the image, or to equip the camera with a wide-angle lens, in order to capture or acquire a complete image. When the image to be captured is close to the front of the lens, it is necessary to shorten the camera's lens focal length, or to increase the distance between the camera and the image, in order to capture or acquire a clear image. If the distance between the camera and the image is too small, and the camera's focal length is not short enough, and no wide-angle lens is used, the camera will have difficulty capturing or acquiring a clear and complete image.

[0005] However, both short-focal-length cameras and cameras equipped with wide-angle lenses are very expensive, and wide-angle lenses are difficult to manufacture. Summary of the Invention

[0006] The present invention aims to overcome at least one of the defects (deficiencies) of the prior art and provide a data acquisition device and a projection system that indirectly increases the distance between the camera and the image through a lens, so that the camera can acquire the image clearly and completely.

[0007] The technical solution adopted in the first aspect of this invention is:

[0008] A data acquisition device is provided, the data acquisition device including a device housing, a data acquisition surface, a lens and a camera, wherein the data acquisition surface is mounted on the front sidewall of the device housing;

[0009] The lens is disposed inside the device housing and forms an angle with the acquisition surface, the angle being acute, and the image acquired by the acquisition surface is mirrored on the lens;

[0010] The camera is used to capture the image.

[0011] In the solution of the present invention, the camera indirectly acquires images by capturing mirror images. Inside the device housing with limited space, the distance between the image to be acquired and the camera is increased by the lens, without actually increasing the distance between the camera and the acquisition surface, thus saving the overall volume of the acquisition device.

[0012] Furthermore, one side of the lens is adjacent to the left side of the acquisition surface, and the camera is adjacent to the right side of the acquisition surface.

[0013] Preferably, inside the device housing, one side of the lens is close to the left side of the acquisition surface, while the opposite side is far from the acquisition surface, so that the lens and the acquisition surface form an acute angle on the left side inside the device housing, so that the image acquired by the acquisition surface can be mirrored on the lens. The camera is close to the right side of the acquisition surface, which can lengthen the vertical distance between the camera and the lens, thereby further lengthening the vertical distance between the camera and the mirror image, so that the camera can acquire a complete mirror image.

[0014] Furthermore, the device housing is provided with a lens slot, and the lens is embedded in the lens slot.

[0015] Preferably, a lens slot is provided inside the device housing so that the lens can be detachably embedded in the lens slot. When the lens is damaged, the lens can be removed from the lens slot and replaced with a new lens.

[0016] Furthermore, there are two lens slots, one of which is located on the rear side wall of the device housing, and the other is located at the corner of the device housing and adjacent to the left side of the acquisition surface. The lens is embedded in both lens slots.

[0017] One side of the lens is embedded in a lens slot on the corner of the device housing, adjacent to the left side of the acquisition surface. The opposite side is embedded in another lens slot on the rear side wall of the device housing, away from the acquisition surface, so that the lens and the acquisition surface form an acute angle on the left side inside the device housing. After the image captured by the acquisition surface is mirrored on the lens, the camera captures the mirror image, thus indirectly capturing the image captured by the acquisition surface.

[0018] Furthermore, the front side wall of the device housing is provided with a sampling surface mounting port, and sampling surface slots are provided on the left and right sides of the sampling surface mounting port, and the sampling surface is embedded in the sampling surface slots.

[0019] The sampling surface is installed in the sampling surface mounting port. The area of ​​the sampling surface mounting port is approximately equal to the area of ​​the sampling surface. The area of ​​the sampling surface mounting port depends to some extent on the area of ​​the front side wall of the device housing. Specifically, the larger the area of ​​the front side wall of the device housing, the larger the maximum area of ​​the sampling surface mounting port, and the larger the area of ​​the sampling surface that can be installed.

[0020] Preferably, a sampling surface slot is provided on both the left and right sides of the sampling surface mounting port so that the sampling surface can be detachably embedded in the sampling surface slot. When the sampling surface is damaged, the sampling surface can be removed from the sampling surface slot and replaced with a new sampling surface.

[0021] Furthermore, the device housing is provided with a camera mounting position, which is columnar with a hollow portion. The camera mounting position is adjacent to the right side of the acquisition surface, and the camera is installed in the hollow portion of the camera mounting position.

[0022] The camera is mounted on the right side of the acquisition surface, so that the camera is mounted close to the right side of the acquisition surface, with one side of the lens adjacent to the left side of the acquisition surface and the other side away from the acquisition surface. The camera, which is close to the right side of the acquisition surface, can capture a relatively complete image of the acquisition surface formed by the lens.

[0023] Furthermore, the cross-sectional shape of the camera mounting location is the same as the cross-sectional shape of the camera.

[0024] The shape of the camera mounting position is adapted to the shape of the camera so that the camera can be installed smoothly in the camera mounting position.

[0025] Furthermore, the camera's acquisition direction is perpendicular to the plane where the image is located.

[0026] The camera's acquisition direction forms a certain angle with the surface where the image is located, so that the camera can capture the image. Preferably, this angle is 90°, that is, the camera's acquisition direction is directly facing the image.

[0027] Furthermore, the included angle is 30°.

[0028] An acute angle is formed between the lens and the acquisition surface so that the camera can capture the image formed by the lens.

[0029] Furthermore, the acquisition device also includes a light-blocking plate, which is disposed on the front side wall of the device housing to block ambient light sources.

[0030] When the ambient light source is too strong, the acquisition surface has difficulty capturing images from the front, and the camera also has difficulty capturing images. A light-blocking plate can be installed on the front side wall of the device casing, above the acquisition surface, to block part of the ambient light source.

[0031] Furthermore, the material of the acquisition surface is a rear projection screen.

[0032] Rear projection screens are a common type of light-transmitting material.

[0033] The technical solution adopted in the second aspect of the present invention is:

[0034] A projection system is provided, including a projector, a projection carrier, and the aforementioned acquisition device;

[0035] The projector is used to project an image and project a feature image onto the image. The image includes a valid image and an invalid image corresponding to the valid image. The feature image is located on the invalid image, and the valid image is located on the projection carrier.

[0036] The acquisition device is located on the invalid image and is used to acquire the feature image located on the invalid image.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0038] The acquisition device of the present invention uses a camera to indirectly acquire images by acquiring mirror images. Within the limited space of the device housing, the distance between the image to be acquired and the camera is increased by the lens, without actually increasing the distance between the camera and the acquisition surface, thus saving the overall volume of the acquisition device.

[0039] The acquisition device has a simple, compact, and aesthetically pleasing structure. When applied to a projection system, it can optimize the system's layout and will not affect the normal operation of the projection system due to an excessively large structure. Attached Figure Description

[0040] Figure 1 This is a top view of the data acquisition device according to Embodiment 1 of the present invention.

[0041] Figure 2 This is a front view of the data acquisition device according to Embodiment 1 of the present invention.

[0042] Figure 3 This is a schematic diagram of the data acquisition device according to Embodiment 1 of the present invention.

[0043] Detailed description of the attached drawings: 1. Device housing; 2. Acquisition surface; 3. Lens; 4. Camera; 5. Lens slot; 6. Acquisition surface mounting port; 61. Acquisition surface slot; 7. Camera mounting position; 8. Mirror image. Detailed Implementation

[0044] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate the following embodiments, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions; it is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0045] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0047] Example 1

[0048] like Figure 1 , Figure 2 As shown, this embodiment provides a data acquisition device, which includes a device housing 1, a data acquisition surface 2, a lens 3, and a camera 4. The data acquisition surface 2 is installed on the front side wall of the device housing 1.

[0049] The lens 3 is disposed inside the housing 1 of the device and forms an angle with the acquisition surface 2. The angle is acute, and the image acquired by the acquisition surface 2 forms a mirror image 8 on the lens 3.

[0050] The camera 4 is used to capture the image 8.

[0051] It should be noted that the side of the acquisition surface 2 facing the outside of the device housing 1 is the front, and the side of the acquisition surface 2 facing the inside of the device housing 1 is the back. The image in front of the front of the acquisition surface 2 is acquired through the acquisition surface 2, and then the camera 4 acquires the image acquired by the acquisition surface 2. Specifically, if the camera 4 is outside the device housing 1, it directly acquires the image on the acquisition surface 2 from the front, that is, the camera 4 acquires the image from the front of the acquisition surface 2; if the camera 4 is inside the device housing 1, it acquires the image from the back of the acquisition surface 2, that is, the camera 4 acquires the image from the back of the acquisition surface 2.

[0052] It is understandable that the direction of the image captured by camera 4 from the front of acquisition surface 2 is opposite to the direction of the image captured by camera 4 from the back of acquisition surface 2.

[0053] In this preferred embodiment, the camera 4 can be located either outside or inside the device housing 1, as long as it can capture the image 8. When the camera 4 is located outside the device housing 1, the device housing 1 should be made of a transparent material.

[0054] In this embodiment, the image in front of the acquisition surface 2 is acquired through the acquisition surface 2 and then reflected onto the lens 3 to form a mirror image 8. The camera 4 indirectly acquires the image acquired by the acquisition surface 2 by acquiring the mirror image 8. Even though the camera 4 is inside the device housing 1 and located on the side behind the acquisition surface 2, according to the imaging principle of the lens 3, the image direction of the mirror image 8 is the same as the image direction acquired by the acquisition surface 2. Therefore, the image direction indirectly acquired by the camera 4 through the lens 3 is the same as the image direction acquired by the camera 4 from the front of the acquisition surface 2.

[0055] Camera 4 needs to capture images from the acquisition surface 2. This means camera 4 needs to capture the entire acquisition surface 2 to ensure a complete image capture. Therefore, as... Figure 3 As shown, the acquisition surface 2 forms a mirror image 8 through the lens 3. The camera 4 needs to be able to completely capture the mirror image 8 of the acquisition surface 2 in order to ensure that the image captured by the acquisition surface 2 is completely acquired.

[0056] In this embodiment, the camera 4 indirectly acquires images by acquiring the image mirror 8. Inside the device housing 1, which has limited space, the distance between the image to be acquired and the camera 4 is increased by the lens 3, without actually increasing the distance between the camera 4 and the acquisition surface 2, thus saving the overall volume of the acquisition device.

[0057] Furthermore, one side of the lens 3 is adjacent to the left side of the acquisition surface 2, and the camera 4 is adjacent to the right side of the acquisition surface 2.

[0058] In this preferred embodiment, inside the device housing 1, one side of the lens 3 is close to the left side of the acquisition surface 2, while the opposite side is far away from the acquisition surface 2, so that the lens 3 and the acquisition surface 2 form an acute angle on the left side inside the device housing 1, so that the image acquired by the acquisition surface 2 can form a mirror image 8 on the lens 3. The camera 4 is close to the right side of the acquisition surface 2, which can lengthen the vertical distance between the camera 4 and the lens 3, thereby further lengthening the vertical distance between the camera 4 and the mirror image 8, so that the camera 4 can acquire a complete mirror image 8.

[0059] The position of lens 3 only needs to ensure that it forms a mirror image 8 of the acquisition surface 2. Similarly, the position of camera 4 only needs to ensure that it can capture the mirror image 8. For example, lens 3 can be parallel to acquisition surface 2, with camera 4 in front of lens 3, capturing the image through the mirror image 8 formed by lens 3. Alternatively, one side of lens 3 can be close to the right side of acquisition surface 2, while the opposite side can be away from acquisition surface 2, so that lens 3 and acquisition surface 2 form an acute angle on the right side inside the device housing 1, allowing the image captured by acquisition surface 2 to form a mirror image 8 on lens 3, with camera 4 close to the left side of acquisition surface 2, so that camera 4 captures the mirror image 8. There are other possible arrangements for the positions of lens 3 and camera 4, which will not be described in this embodiment.

[0060] Furthermore, the outer casing 1 of the device is provided with a lens slot 5, and the lens 3 is embedded in the lens slot 5.

[0061] In this embodiment, a lens slot 5 is provided inside the device housing 1 so that the lens 3 can be detachably embedded in the lens slot 5. When the lens 3 is damaged, the lens 3 can be removed from the lens slot 5 and a new lens 3 can be replaced.

[0062] There are several ways to install the lens 3. For example, the lens 3 can be directly glued to the inside of the device housing 1. Other installation methods for the lens 3 will not be described in this embodiment.

[0063] Furthermore, there are two lens slots 5, one of which is located on the rear side wall of the device housing 1, and the other is located at the corner of the device housing 1 and adjacent to the left side of the acquisition surface 2. The lens 3 is embedded in the two lens slots 5.

[0064] One side of the lens 3 is embedded in a lens slot 5 on the corner of the device housing 1, adjacent to the left side of the acquisition surface 2. The opposite side is embedded in another lens slot 5 on the rear side wall of the device housing 1, away from the acquisition surface 2, so that the lens 3 and the acquisition surface 2 form an acute angle on the left side inside the device housing 1. After the image acquired by the acquisition surface 2 is reflected as a mirror image 8 on the lens 3, the camera 4 acquires the mirror image 8, thereby indirectly acquiring the image acquired by the acquisition surface 2.

[0065] The number and arrangement of the lens slots 5 can vary. For example, a lens slot 5 can be provided at the bottom of the device housing 1, and the lens 3 can be inserted into the bottom lens slot 5. The number and arrangement of the lens slots 5 will not be described in detail in this embodiment.

[0066] Furthermore, the front side wall of the device housing 1 is provided with a collection surface mounting port 6, and collection surface slots 61 are respectively provided on the left and right sides of the collection surface mounting port 6, and the collection surface 2 is embedded in the collection surface slots 61.

[0067] The collecting surface 2 is installed in the collecting surface mounting port 6. The area of ​​the collecting surface mounting port 6 is approximately equal to the area of ​​the collecting surface 2. The area of ​​the collecting surface mounting port 6 depends to some extent on the area of ​​the front side wall of the device housing 1. Specifically, the larger the area of ​​the front side wall of the device housing 1, the larger the maximum area of ​​the collecting surface mounting port 6, and the larger the area of ​​the collecting surface 2 that can be installed.

[0068] In this preferred embodiment, a collection surface slot 61 is provided on the left and right sides of the collection surface mounting port 6 so that the collection surface 2 can be detachably embedded in the collection surface slot 61. When the collection surface 2 is damaged, the collection surface 2 can be removed from the collection surface slot 61 and a new collection surface 2 can be replaced.

[0069] In this preferred embodiment, both the sampling surface mounting port 6 and the front sidewall of the device housing 1 are rectangular. The area of ​​the sampling surface mounting port 6 is smaller than the area of ​​the front sidewall of the device housing 1. That is, the left side of the sampling surface mounting port 6 is close to the left side of the front sidewall of the device housing 1, the right side of the sampling surface mounting port 6 is close to the right side of the front sidewall of the device housing 1, the upper side of the sampling surface mounting port 6 is the upper sidewall of the front sidewall of the device housing 1, and the lower side of the sampling surface mounting port 6 is close to the lower sidewall of the front sidewall of the device housing 1, or the lower side of the sampling surface mounting port 6 is the lower sidewall of the front sidewall of the device housing 1.

[0070] There are multiple ways to install the collecting surface 2 on the collecting surface mounting port 6. For example, the collecting surface 2 can be glued to the edge of the collecting surface mounting port 6. Other installation methods of the collecting surface 2 will not be described in this embodiment.

[0071] Furthermore, the device housing 1 is provided with a camera mounting position 7, which is columnar with a hollow portion. The camera mounting position 7 is adjacent to the right side of the acquisition surface 2, and the camera 4 is mounted in the hollow portion of the camera mounting position 7.

[0072] In this embodiment, the camera mounting position 7 can be located inside the device housing 1 or outside the device housing 1.

[0073] In this preferred embodiment, the camera 4 is installed in the hollow portion within the camera mounting position 7. The camera mounting position 7 is positioned adjacent to the right side of the acquisition surface 2, so that the camera 4 is installed close to the right side of the acquisition surface 2, one side of the lens 3 is adjacent to the left side of the acquisition surface 2, and the opposite side is away from the acquisition surface 2. The camera 4, which is close to the right side of the acquisition surface 2, can capture the image 8 of the acquisition surface 2 formed by the lens 3 more completely.

[0074] Furthermore, the cross-sectional shape of the camera mounting position 7 is the same as the cross-sectional shape of the camera 4.

[0075] Camera 4 is mounted on camera mounting position 7; therefore, the shape of camera mounting position 7 needs to be adapted to the shape of camera 4. For example, when camera 4 is cylindrical, the cross-sectional shape of camera mounting position 7 should be arc-shaped.

[0076] Furthermore, the acquisition direction of the camera 4 is perpendicular to the plane where the mirror image 8 is located.

[0077] The camera 4's acquisition direction forms a certain angle with the surface where the mirror image 8 is located, so that the camera 4 can acquire the mirror image 8. In this embodiment, preferably, the angle is 90°, that is, the acquisition direction of the camera 4 is directly facing the mirror image 8.

[0078] As one of the optional implementation methods in this embodiment, the angle formed between the acquisition direction of the camera 4 and the surface where the mirror image 8 is located can be greater than 0° and less than 90°, or greater than 90° and less than 180°, as long as the camera 4 can acquire the mirror image 8.

[0079] Furthermore, the included angle is 30°.

[0080] The lens 3 and the acquisition surface 2 form an acute angle so that the image acquired by the acquisition surface 2 can form a mirror image 8 on the lens 3, and the camera 4 can acquire the mirror image 8 formed by the lens 3.

[0081] As one of the optional implementation methods in this embodiment, the included angle can be designed according to actual needs. When the distance between the front sidewall and the rear sidewall of the device housing 1 is long, a larger included angle can be formed between the lens 3 and the collection surface 2. When the distance between the front sidewall and the rear sidewall of the device housing 1 is short, a smaller included angle can be formed between the lens 3 and the collection surface 2.

[0082] Furthermore, the acquisition device also includes a light-blocking plate, which is disposed on the front side wall of the device housing 1 and is used to block ambient light sources.

[0083] When the ambient light source is too strong, the acquisition surface 2 has difficulty capturing images in front of it, and the camera 4 also has difficulty capturing images. A light-blocking plate can be installed on the front side wall of the device housing 1, above the acquisition surface 2, to block part of the ambient light source.

[0084] Furthermore, the material of the acquisition surface 2 is a rear projection screen.

[0085] Rear projection screens are a common type of light-transmitting material.

[0086] The material of the acquisition surface 2 can be other light-transmitting materials so that the image in front of the acquisition surface 2 can be acquired by the acquisition surface 2 and then reflected on the lens 3 to form a mirror image 8.

[0087] The material of the acquisition surface 2 can also be other materials, such as photosensitive materials, as long as the image acquired by the acquisition surface 2 can form a mirror image 8 on the lens 3.

[0088] The acquisition device of this embodiment can be applied to a projection system, which includes a projector, a projection carrier, and an acquisition device. The projector is used to project an image and project a feature image on the image. The image includes a valid image and an invalid image corresponding to the valid image. The feature image is located on the invalid image, and the valid image is located on the projection carrier.

[0089] The acquisition device is located on the invalid image and is used to acquire feature images located on the invalid image.

[0090] The acquisition surface 2 of the acquisition device acquires the feature image so that the feature image is reflected on the lens 3 through the acquisition surface 2 and the camera 4 of the acquisition device acquires the reflection 8, thereby indirectly acquiring the feature image.

[0091] The projection system in this embodiment also includes an adjustment module for adjusting the feature image acquired by the acquisition device, thereby adjusting the position of the effective image.

[0092] The acquisition device in this embodiment has a simple, compact and aesthetically pleasing structure. When applied to a projection system, it can optimize the layout of the projection system and will not affect the normal operation of the projection system due to an excessively large structure.

[0093] Meanwhile, the acquisition device is set on the invalid image, which will not affect the normal display of the valid image. This allows the projector to adjust the feature image acquired by the acquisition device and thus adjust the position of the valid image when projecting the valid image normally.

[0094] Example 2

[0095] This embodiment provides a projection system, including a projector, a projection carrier, and the acquisition device of Embodiment 1;

[0096] The projector is used to project an image and project a feature image onto the image. The image includes a valid image and an invalid image corresponding to the valid image. The feature image is located on the invalid image, and the valid image is located on the projection carrier.

[0097] The acquisition device is located on the invalid image and is used to acquire the feature image located on the invalid image.

[0098] The acquisition device has a simple, compact, and aesthetically pleasing structure. When applied to a projection system, it can optimize the system's layout and will not affect the normal operation of the projection system due to an excessively large structure.

[0099] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A projection system, characterized in that, Includes projector, projection medium, and acquisition device; The projector is used to project an image and project a feature image onto the image. The image includes a valid image and an invalid image corresponding to the valid image. The feature image is located on the invalid image, and the valid image is located on the projection carrier. The acquisition device is located on the invalid image and is used to acquire the feature image located on the invalid image; The acquisition device includes a device housing, an acquisition surface, a lens, and a camera, wherein the acquisition surface is mounted on the front sidewall of the device housing; The lens is disposed inside the device housing and forms an angle with the acquisition surface, the angle being acute, and the image acquired by the acquisition surface is mirrored on the lens; The camera is used to capture the image; The projection system also includes an adjustment module for adjusting the feature images acquired by the acquisition device, thereby adjusting the position of the effective image.

2. The projection system according to claim 1, characterized in that, One side of the lens is adjacent to the left side of the acquisition surface, and the camera is adjacent to the right side of the acquisition surface.

3. A projection system according to claim 1, characterized in that, The device housing is provided with a lens slot, and the lens is embedded in the lens slot.

4. A projection system according to claim 3, characterized in that, There are two lens slots, one of which is located on the rear side wall of the device housing, and the other is located at the corner of the device housing and adjacent to the left side of the acquisition surface. The lens is embedded in the two lens slots.

5. A projection system according to claim 1, characterized in that, The front side wall of the device housing has a sampling surface mounting port, and sampling surface slots are provided on the left and right sides of the sampling surface mounting port, with the sampling surface embedded in the sampling surface slots.

6. A projection system according to claim 2, characterized in that, The device housing is provided with a camera mounting position, which is columnar with a hollow portion. The camera mounting position is adjacent to the right side of the acquisition surface, and the camera is installed in the hollow portion of the camera mounting position.

7. A projection system according to claim 6, characterized in that, The cross-sectional shape of the camera mounting location is the same as the cross-sectional shape of the camera.

8. A projection system according to claim 1, characterized in that, The camera's acquisition direction is perpendicular to the plane where the image is located.

9. A projection system according to any one of claims 1 to 8, characterized in that, It also includes a light-blocking plate, which is disposed on the front side wall of the device housing and is used to block ambient light sources.

Images