Multi-light fusion equipment

Abstract

The utility model discloses multi-light fusion equipment, which comprises a first light component, a second light component and an image fusion device, the first light component is used for acquiring first light information to form a first image; the second light component is used for acquiring and processing second light information to form a second image; and the image fusion device is used for displaying the second image and completing fusion of the first image and the second image. According to the technical scheme, the use of a hardware system by the multi-optical fusion equipment is reduced, and the design of low cost, miniaturization, light weight and low power consumption of the whole machine is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of image processing technology, specifically to a multi-light fusion device. Background Technology

[0002] Existing multi-light fusion equipment is mainly dual-light fusion equipment, such as fusion of visible light and infrared light. Its fusion method is mainly the fusion mode of image fusion and projection beam splitting.

[0003] In dual-light fusion devices for image fusion, visible light and infrared light must pass through two separate imaging optical paths to form visible light and infrared images respectively, which are then processed and fused using image algorithms. For example, patent CN208240087U discloses an infrared and visible light fusion system and image fusion device. This device uses an infrared optical device to acquire a visible infrared image of the target, then uses a visible light optical device to acquire a visible light image of the target. Next, an image fusion device fuses the visible infrared and visible light images, and finally, a display device displays the fused image. However, this technology suffers from high cost, large size, and high power consumption because it requires separate imaging of visible light and infrared light before fusion can be achieved through control system processing.

[0004] The dual-light fusion mode of projection beam splitting reflects infrared light into the visible light imaging path, thereby forming a fused image of visible light and infrared light. For example, patent CN114251977A discloses a dual-light fusion sight and a dual-light fusion method. It includes a visible light imaging component, a reticle component, an infrared thermal imaging component, and a prism component; wherein the prism component is used to fuse the infrared image and the reticle image, and the fused image is fused again in the visible light channel. Specifically, a beam splitter is set in the visible light imaging component. This beam splitter can transmit the visible light image and reflect the infrared image and / or the reticle image, thereby enabling the visible light image, infrared image, and / or reticle image to be fused in the visible light channel. To achieve this objective, the beam splitter includes a light-transmitting surface and a reflective surface facing the front and rear ends of the visible light channel. A light-transmitting film is disposed on the light-transmitting film, and a reflective film is disposed on the reflective surface. The light-transmitting and reflective surfaces are inclined relative to the visible light channel. The light-transmitting film needs to reflect the visible light of the infrared image spectrum and the reticle image spectrum, and have high transmission of visible light outside the infrared image spectrum and the reticle image spectrum. The reflective film needs to have high reflection of the visible light of the infrared image spectrum and the reticle image spectrum, and transmit visible light outside the infrared image spectrum and the reticle image spectrum.

[0005] Because this technical solution requires coating the beam splitter with a reflective film to reflect infrared light into the visible light imaging optical path, and in order to ensure the imaging quality in the visible light channel, the beam splitter can only be coated with a special type of visible light reflective film. However, this will cause the infrared light to be able to blend with the visible light only in a specific color, resulting in a loss of detail in the blended image. In addition, the beam splitter also needs to be placed at 45° in this technology, which makes the structure of the entire device complex, large in size and high in cost. Utility Model Content

[0006] The purpose of this invention is to provide a multi-light fusion device that reduces the use of related hardware in existing devices and lowers the hardware assembly requirements, thereby reducing the production cost of the multi-light fusion device and making the whole machine smaller, lighter, and with lower power consumption.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-light fusion device includes a first light component, a second light component, and an image fusion unit; the first light component is used to acquire first light information to form a first image; the second light component is used to acquire and process second light information to form a second image; the image fusion unit is used to display the second image and complete the fusion of the first image and the second image.

[0009] Preferably, the first light information originates from visible light; the image fusion unit includes a transparent display screen.

[0010] Preferably, the center of the transparent display screen is coaxial with the center of the beam of the first light information; and the center of the second image is also coaxial with the center of the beam of the first light information.

[0011] Preferably, the first light component includes a first objective lens and an imaging component, the imaging component being used to process the first light information to form an upright first image.

[0012] Preferably, the second light component includes a second objective lens and a second light detector; the second light detector is used to convert the second light information into a second light electrical signal, which is electrically connected to the transparent display screen.

[0013] Preferably, the imaging component is an optical imaging component, which includes a steering system but does not include a visible light detector; the steering system is used to rotate the first light information to form an upright first image; the transparent display screen is disposed at the image plane of the steering system.

[0014] Preferably, the image fusion device further includes an image processor for processing the second image to match the size of the second image displayed on the transparent display screen with that of the first image.

[0015] Preferably, the second objective lens in the second light assembly can be a low-light lens or a laser rangefinder.

[0016] Preferably, the multi-light fusion device further includes a third light component for acquiring third light information; the third light component includes a third objective lens and a third light detector; the third light detector converts the third light information into a third light electrical signal to obtain a third image; and the third light detector is electrically connected to the image fusion unit.

[0017] Preferably, the image fusion unit can also fuse the second image and the third image to form a composite image, and display the composite image on the transparent display screen.

[0018] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention presents a second image within the imaging path of the first light ray by setting a transparent display screen at the image plane of the steering system 12 in the first light ray channel. The transparent display screen 30, along with the second image generated by moving the second light ray, superimposes the second image onto the first image, allowing the user to see the fusion of the first and second images through the eyepiece 4. Compared to existing technologies, this invention achieves imaging within the first light ray channel, especially when the first light ray is visible light, without the need for a first light ray detector (such as a visible light sensor). This reduces the hardware requirements of the multi-light fusion device, facilitating low-cost, miniaturized, lightweight, and low-power design of the entire device. Furthermore, the introduction of the transparent screen enables the fusion of infrared light with different pseudo-colors and visible light, improving the user experience. Attached Figure Description

[0020] Figure 1 The above are schematic diagrams of the multi-light fusion equipment described in embodiments 1-3 of this utility model;

[0021] Figure 2 This is a schematic diagram of the multi-light fusion device described in Embodiment 4 of this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1:

[0024] This embodiment provides a multi-light fusion device, which includes a first light component 1, a second light component 2, an image fusion unit 3, and an eyepiece 4; the first light component 1 is used to acquire first light information of the observed target to form a first image; the second light component 2 is used to acquire second light information of the observed target to form a second image; the second light component 2 is electrically connected to the image fusion unit 3.

[0025] The image fusion unit 3 is located in the imaging channel of the first light ray and at the image plane of the first light ray channel. It is used to display the second image and to fuse the first image and the second image. The eyepiece 4 is used to observe the fused image. Since visible light is mostly used when observing a target, in this invention, the first light ray is selected as visible light, and the corresponding first light ray component is set as a visible light component.

[0026] Furthermore, the first light component 1 and the second light component 2 are arranged side by side and are both located at the front end of the multi-light fusion device, that is, on the side closer to the observation target. The image fusion unit 3 is located after the first light component 1. Specifically, the image fusion unit 3 is located in the optical path of the first light information for displaying and processing the second image. The eyepiece 4 is located after the image fusion unit 3 to facilitate observation of the fused image. It is located at the rear end of the multi-light fusion device, that is, on the side farther from the observation target.

[0027] Specifically, the image fusion unit 3 includes a transparent display screen 30 and an image processor (not shown in the figure); the transparent display screen 30 is disposed in the light path of the first light beam, and the center of the transparent display screen 30 is coaxial with the beam center of the first light beam; the image processor is used to process the second image so that the size of the second image displayed on the transparent display screen 30 matches the size of the first image, thereby realizing the fusion of the first image and the second image. Preferably, the image algorithm used by the image processor is a nearest neighbor interpolation image magnification algorithm to adjust the size of the second image.

[0028] The first light component 1 includes a first objective lens 10 and an imaging component 11. The first objective lens 10 is located at the front end of the multi-light fusion device and is used to collect first light information. The imaging component 11 is located after the first objective lens 10 and is used to process the first light information to form an upright first image. At this time, the transparent display screen 30 is located after the imaging component 11.

[0029] The second light component 2 includes a second objective lens 20 and a second light detector 21; the second light detector 21 is electrically connected to the transparent display screen 30, and the second objective lens 20 is also located at the front end of the multi-light fusion device and is arranged in parallel with the first objective lens 10; the second light detector 21 is located after the second objective lens 20 and converts the second light information into an electrical signal of the second light, and finally displays the second image on the transparent display screen 30.

[0030] During operation, the position of the second light detector 21 is adjusted by moving it so that the displayed second image moves on the transparent display screen 30, so that the center of the first light beam and the center of the second image can be precisely coaxial.

[0031] In addition, in environments with poor lighting conditions, to ensure that the multi-light fusion device can capture clear images, the second objective lens 20 in the second light assembly 2 can be selected as a low-light lens, and the second light detector 21 can be simultaneously selected as a low-light probe to achieve image fusion of low-light and visible light.

[0032] Since the fusion principle of low-light and visible light lenses is the same as that of infrared and visible light lenses, the following section details the workflow of this multi-light fusion device, using visible light as the first ray and infrared light as the second ray:

[0033] When assembling the multi-light fusion device, the transparent display screen 30 is first placed in the image plane of the imaging component 11. Furthermore, when using the multi-light fusion device to observe a specific target, the first light component 1 and the second light component 2 operate simultaneously.

[0034] In the first light component 1 (i.e., visible light component), visible light enters the multi-light fusion device through the first objective lens 10 in the first light component 1, and then the first light information obtained through the first objective lens 10 enters the imaging component 11. In the imaging component 111, the first light information (i.e., visible light information) is processed so that the first image (i.e., visible light image) observed at the end is an upright image.

[0035] In the second light assembly, infrared light enters the multi-light fusion device through the second objective lens 20 (i.e., infrared lens) in the second light assembly 2. Then, the second light information (i.e., the incident infrared radiation signal) obtained by the second objective lens 20 enters the second light detector 21 (i.e., infrared detector). After the second light information is received by the second light detector 21, it is converted into an electrical signal output and then projected onto the transparent display screen 30 to form a second image.

[0036] After the projection of the second image is completed, the second light detector 21 is adjusted to move the second image on the transparent display screen 30 to ensure that the center of the second image is precisely coaxial with the beam center of the first light (i.e., visible light). Then, the image processor is activated, and the nearest neighbor interpolation image magnification algorithm is used to adjust the size of the second image (i.e., the infrared image) on the transparent display screen 30 so that it matches the first image (i.e., the visible light image). Thus, the fusion of the first light (i.e., visible light) and the second light (i.e., infrared light) is achieved.

[0037] After the fusion is complete, the observer can observe the image of the fused two different light sources, namely visible light and infrared light, through eyepiece 4.

[0038] As can be seen, by setting a transparent display screen 31 in the optical path of the first light information, the present invention enables the visible second image of the second light information to be displayed on the transparent display screen 31. At the same time, the first light information can pass through the transparent display screen 31 to achieve the fusion of the first image and the second image, so that the observer can observe the fused image of the two light sources.

[0039] Compared to existing technologies, this multi-light fusion device can fuse images formed by two types of light without processing the first image or extracting complex information and performing algorithmic processing on the second image. This simplifies the structure of the image processor and reduces its algorithmic processing power. Furthermore, this solution eliminates the need for special design of the structure and position of the reflector in the device to achieve image fusion, thereby reducing power consumption and simplifying the required components and manufacturing costs.

[0040] Example 2:

[0041] The difference between this embodiment and embodiment 1 is that, when the first light ray is visible light, the first light ray assembly 1 does not include a visible light detector. The imaging assembly 11 is an optical imaging assembly, which includes a steering system 12 (in this case, in the attached...). Figure 1In this configuration, the imaging component 11 and the steering system 12 are the same part. The steering system 12 is used to rotate the first light information by 180°. At this time, the transparent display is located at the image plane of the steering system 12. By processing the first light information through the steering system 12, the image formed by the objective lens is rotated by 180°, thereby forming an upright first image.

[0042] This technical solution can obtain the first image without a visible light detector. It can obtain a high-resolution first image simply by refracting light through a lens. At the same time, it improves the anti-interference capability of the first light component and simplifies the structure of the first light component.

[0043] Example 3:

[0044] The difference between this embodiment and embodiment 1 or 2 is that the second objective lens 20 and the second light detector 21 in the second light component 2 of the multi-light fusion device in embodiment 1 or 2 are replaced with a laser rangefinder. In this case, the second light signal obtained by the laser rangefinder is the observation distance between the observer and the observed target. Then, the corresponding component converts the second light signal (which is the laser ranging signal at this time) into an image signal and displays the value representing the observation distance on the display screen so that the observer can intuitively obtain the distance between himself and the observed target.

[0045] Example 4:

[0046] The difference between this embodiment and embodiments 1, 2, or 3 is that the multi-light fusion device further includes a third light component 5. This third light component 5 is also located at the front end of the multi-light fusion device and is parallel to the first light component 1 and the second light component 2. The third light component 5 includes a third objective lens 50 and a third light detector 51. The third objective lens 50 is used to acquire third light information, and the third light detector 51 is used to convert the third light information into an electrical signal, which is electrically connected to the transparent display screen 30 to display the third image acquired by the third light component 5. The third objective lens 50 is a low-light lens to capture a clear third image under low light intensity; the third light detector 51 is a low-light detector.

[0047] During operation, the obtained third image is first fused with the second image to obtain a composite image, and then the composite image is displayed on the transparent display screen 30 to fuse the composite image with the visible light image. The fusion principle of the composite image and the first image (i.e., the visible light image) is the same as the fusion principle of the second image and the first image.

[0048] It should be noted that the technical features in embodiments 1 to 4 above can be combined arbitrarily, and the resulting technical solutions all fall within the protection scope of this application. Furthermore, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-light fusion device, comprising a first light beam assembly, a second light beam assembly, and an image fusion unit; characterized in that, The first light component is used to acquire first light information to form a first image; The second light component is used to acquire and process second light information to form a second image; The image fusion processor is used to display the second image and to fuse the first image and the second image.

2. The multi-light fusion device as described in claim 1, characterized in that, The first light information originates from visible light; the image fusion unit includes a transparent display screen.

3. The multi-light fusion device as described in claim 2, characterized in that, The center of the transparent display screen is coaxial with the center of the beam of the first light information; and the center of the second image is also coaxial with the center of the beam of the first light information.

4. The multi-light fusion device as described in claim 3, characterized in that, The first light component includes a first objective lens and an imaging component, the imaging component being used to process the first light information to form an upright first image.

5. The multi-light fusion device as described in claim 4, characterized in that, The second light component includes a second objective lens and a second light detector; the second light detector is used to convert the second light information into a second light electrical signal, which is electrically connected to the transparent display screen.

6. The multi-light fusion device as described in claim 5, characterized in that, The imaging component is an optical imaging component, which includes a steering system but does not include a visible light detector; the steering system is used to rotate the first light information to form an upright first image; the transparent display screen is located at the image plane of the steering system.

7. The multi-light fusion device as described in claim 5 or 6, characterized in that, The image fusion device further includes an image processor for processing the second image to match the size of the second image displayed on the transparent display screen with that of the first image.

8. The multi-light fusion device as described in claim 7, characterized in that, The second objective lens in the second light assembly can be a low-light lens or a laser rangefinder.

9. The multi-optical fusion device as described in claim 8, characterized in that, The multi-light fusion device further includes a third light component for acquiring third light information; the third light component includes a third objective lens and a third light detector; the third light detector converts the third light information into a third light electrical signal to obtain a third image; and the third light detector is electrically connected to the image fusion unit.

10. The multi-light fusion device as described in claim 9, characterized in that, The image fusion device can also fuse the second image with the third image to form a composite image, and display the composite image on the transparent display screen.

Images