CN215494343U - Multichannel fusion optical system - Google Patents
Multichannel fusion optical system Download PDFInfo
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- CN215494343U CN215494343U CN202121165222.0U CN202121165222U CN215494343U CN 215494343 U CN215494343 U CN 215494343U CN 202121165222 U CN202121165222 U CN 202121165222U CN 215494343 U CN215494343 U CN 215494343U
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- 230000004927 fusion Effects 0.000 title claims abstract description 48
- 238000003384 imaging method Methods 0.000 claims abstract description 100
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Abstract
The utility model discloses a multi-channel fusion optical system, wherein an imaging component acquires and images first waveband light of a target area, a display component displays an image acquired by the imaging component, the image light is incident to a light guide component, the light guide component acquires second waveband light of the target area and images the light to an imaging surface, and the image light emitted by the display component is guided and transmitted to project to the imaging surface, so that an image formed by the first waveband light is fused with an image formed by the second waveband light. This multichannel fuses optical system directly images to second wave band light, forms the image to first wave band light, passes through the image fusion that projection and second wave band light formed again, realizes the fusion of two passageway light images, can improve the image resolution ratio that prior art exists and reduce and the problem of image parallax error.
Description
Technical Field
The utility model relates to the technical field of optical systems, in particular to a multi-channel fusion optical system.
Background
In some application fields, multi-channel light information needs to be fused, so that image information contained in each channel light can be obtained simultaneously, and application requirements are met. In patent publication No. CN209311704U entitled "a thermal imaging fusion night vision device", an optical system that fuses thermal imaging and night vision utilizes digital image cropping for image fusion. Due to the off-axis of the two light beams, the parts of the two light beams with non-coincident view fields need to be cut off, so that the image resolution is reduced. Meanwhile, when the coincidence of images of an infinite target is taken as a calibration requirement, obvious parallax or the coincidence of images formed by two paths of light can be generated when a near target is observed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multi-channel fusion optical system which can realize the fusion of two-channel optical information and can solve the problems of image resolution reduction and image parallax existing in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a multi-channel fusion optical system comprises an imaging assembly, a display assembly, a light guide assembly and an imaging surface, wherein the imaging assembly is used for obtaining first waveband light of a target area and imaging, the display assembly is connected with the imaging assembly and used for displaying images obtained by the imaging assembly and enabling the image light to be incident into the light guide assembly, the light guide assembly is used for obtaining second waveband light of the target area and imaging the light to the imaging surface, and the image light emitted by the display assembly is guided, transmitted and projected to the imaging surface, so that images formed by the first waveband light and images formed by the second waveband light are fused.
Preferably, the light guide assembly includes a first optical element, and the first optical element is configured to transmit the incoming light of the second wavelength band so that the light is incident on the imaging surface, and to reflect the image light from the display assembly so that the image light is incident on the imaging surface.
Preferably, the light guide assembly further includes a first lens group disposed on an optical path between the first optical element and the imaging surface, the first lens group being configured to image the second wavelength band light passing through the first optical element onto the imaging surface, and project the image light passing through the first optical element onto the imaging surface.
Preferably, the light guide assembly further comprises a second optical element disposed in an optical path between the display assembly and the first optical element, the second optical element being configured to reflect the image light from the display assembly to the first optical element.
Preferably, the light guide assembly includes a second lens group disposed on an optical path between the display assembly and the imaging surface, and the second lens group is configured to project the image light from the display assembly to the imaging surface.
Preferably, the imaging device further comprises a turning assembly arranged on an optical path between the light guide assembly and the imaging surface, wherein the turning assembly is used for guiding the image light emitted by the light guide assembly and the second waveband light to enter the imaging surface and changing the image direction formed on the imaging surface.
Preferably, the turning assembly comprises a prism or a lens.
Preferably, the imaging lens further comprises a third lens group for imaging an image formed on the imaging surface.
Preferably, the imaging assembly includes a fourth lens group and a photosensitive imaging surface, and the fourth lens group is configured to obtain a first waveband light of the target area and image the light onto the photosensitive imaging surface.
Preferably, the first band light is infrared light, and the second band light is visible light.
According to the technical scheme, the imaging assembly acquires and images the first waveband light of the target area, the display assembly displays the image acquired by the imaging assembly, the image light is incident to the light guide assembly, the light guide assembly acquires the second waveband light of the target area and images the second waveband light to the imaging surface, and the image light emitted by the display assembly is guided and transmitted to project to the imaging surface, so that the image formed by the first waveband light and the image formed by the second waveband light are fused, and the two-channel light information fusion is realized.
The multi-channel fusion optical system directly images the second waveband light, forms an image for the first waveband light, and then fuses the image formed by projection and the second waveband light, so that the fusion of two-channel light images is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-channel fusion optical system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a multi-channel fusion optical system according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a multi-channel fusion optical system according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a multi-channel fusion optical system according to yet another embodiment of the present invention;
FIG. 5 is a schematic optical path diagram of a steering assembly according to an embodiment of the present invention;
FIG. 6 is a flowchart illustrating a method for correcting an optical axis of a multi-channel fusion optical system according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a multi-channel fusion optical system provided in the present embodiment, and it can be seen that the multi-channel fusion optical system of the present embodiment includes an imaging element 10, a display element 11, a light guide element 12, and an imaging plane 13. The imaging component 10 is configured to obtain a first waveband light of a target region and perform imaging, the display component 11 is connected to the imaging component 10 and configured to display an image obtained by the imaging component 10, and inject the image light into the light guide component 12, the light guide component 12 is configured to obtain a second waveband light of the target region and image the light onto the imaging surface 13, and guide and propagate the image light emitted by the display component 11 to project onto the imaging surface 13, so that an image formed by the first waveband light and an image formed by the second waveband light are fused.
The first wave band light and the second wave band light have different wave band ranges. The first band of light of the target area is the first band of light emitted by the target area, and the second band of light of the target area is the second band of light emitted by the target area. In fig. 1 to 3, the dotted line indicates the first wavelength band light, and the solid line indicates the second wavelength band light.
The imaging assembly 10 captures and images light of a first wavelength band in the target region. The display unit 11 displays an image generated by the imaging unit 10 and emits image light. The image light is light containing image information, and the user can see the image after the user eyes acquire the image light.
The light guide assembly 12 obtains the second waveband light of the target area and images the light to the imaging surface 13. The light guide component 12 further guides and propagates the image light emitted by the display component 11 to project the image light to the imaging plane 13, and the display component 11 displays an image formed by the first waveband light of the target area, so that the image formed by the first waveband light is fused with the image formed by the second waveband light.
The multichannel fuses optical system of this embodiment directly images the second wave band light, forms the image to first wave band light, passes through the projection again with the image fusion that second wave band light formed, realizes the fusion of two passageway light images, with two way light off-axes that have now, utilize the mode that digital image was tailor to carry out image fusion and compare, this multichannel fuses optical system can improve the image resolution ratio that prior art exists and reduce and the problem of image parallax error.
The multi-channel fusion optical system is described in detail below with reference to the accompanying drawings and the detailed description.
Optionally, referring to fig. 2, fig. 2 is a schematic diagram of a multi-channel fusion optical system according to another embodiment. As shown, the light guide assembly 12 may include a first optical element 120, where the first optical element 120 is configured to transmit the incoming second wavelength band light to make the light incident on the imaging plane 13, and to reflect the image light from the display assembly 11 to make the image light incident on the imaging plane 13. So that the incoming light of the second wavelength band and the image light from the display module 11 can be coaxially incident on the imaging plane 13 through the first optical element 120, the registration of the two-channel image can be ensured.
As further shown in fig. 2, the light guide assembly 12 may further include a first lens group 121 disposed on an optical path between the first optical element 120 and the imaging plane 13, where the first lens group 121 is configured to image the second wavelength band light passing through the first optical element 120 onto the imaging plane 13, and project the image light passing through the first optical element 120 onto the imaging plane 13. In this embodiment, the first lens group 121 serves as a lens group for imaging the light of the second wavelength band, and also serves as a lens group for projecting the image light from the display module 11 to the imaging surface 13, so that the lenses are shared in the optical system, the number of the lenses can be reduced, the system structure is compact, and the occupied space is reduced.
The first lens group 121 serves as a lens group for projecting image light from the display element 11 onto the imaging surface 13, and the display element 11 and the imaging surface 13 are located at two optically conjugate positions.
In addition, in other embodiments, the first optical element may be configured to reflect the incoming light of the second wavelength band to make the light incident on the imaging plane, and to transmit the image light from the display module to make the image light incident on the imaging plane. This configuration makes the optical path layout of the optical system less simplified than the optical system configuration shown in fig. 2. In practice the solution shown in figure 2 may preferably be used.
The light guide assembly 12 is configured to guide and propagate the image light from the display assembly 11 to project the image light onto the imaging plane 13, and specifically, the light guide assembly 12 may include a second lens group disposed on an optical path between the display assembly 11 and the imaging plane 13, and the second lens group is configured to project the image light from the display assembly 11 onto the imaging plane 13. The second lens group serves as a lens group for projecting image light from the display module 11.
Preferably, referring to fig. 3, fig. 3 is a schematic diagram of a multi-channel fusion optical system according to another embodiment. As shown in the figure, a second lens group 122 may be disposed on a light path between the display module 11 and the first optical element 120, and image light emitted from the display module 11 is projected onto the first optical element 120 through the second lens group 122, and then the image light is projected onto the image plane 13 through the first optical element 120 and the first lens group 121 in sequence. In the present embodiment, the image light from the display unit 11 is projected by the combination of the second lens group 122 and the first lens group 121.
Further, in order to optimize the arrangement of the optical path structure of the optical system, the light guide member 12 may further include a second optical element disposed on the optical path between the display member and the first optical element, the second optical element being configured to reflect the image light from the display member to the first optical element. Referring to fig. 4, fig. 4 is a schematic diagram of a multi-channel fusion optical system according to another embodiment, as shown in this embodiment, a second optical element 123 is disposed on an optical path between the second lens group 122 and the first optical element 120, image light emitted from the second lens group 122 is incident on the second optical element 123, and the second optical element 123 reflects the light to the first optical element 120. By arranging the second optical element 123, the optical path can be deflected so that the optical path structure of the optical system can be arranged more easily, the optical system can be made compact, the size of the optical system can be greatly reduced, and reduction of the occupied space is facilitated.
Further preferably, the multi-channel fusion optical system may further include a turning component disposed on a light path between the light guide component and the imaging plane, where the turning component is configured to guide the image light emitted from the light guide component and the second waveband light to enter the imaging plane, so as to change an image direction formed on the imaging plane. For example, if the optical system uses a telescope to image and the directly obtained image is an inverted image, the direction of the image can be changed by using the steering assembly, for example, the image projected onto the imaging plane can be converted into an upright image. Referring to fig. 4 and 5 in combination, fig. 5 is a schematic diagram of an optical path of the turning component of the present embodiment, and the turning component 14 may be, but is not limited to, a prism or a lens. The turning assembly 14 as shown employs two prisms through which light propagates to redirect the image formed at the imaging plane.
Further preferably, the optical system may further include a third lens group for imaging an image formed on the imaging surface. Referring to fig. 4, the third lens group 15 may be disposed on a user-viewing side of the imaging plane 13, and a user may view an image through the third lens group 15, and the image may be enlarged or reduced through the third lens group 15.
More specifically, the imaging assembly 10 may include a fourth lens group 100 and a photosensitive imaging surface 101, where the fourth lens group 100 is configured to obtain a first waveband light of a target area and image the first waveband light onto the photosensitive imaging surface 101. Referring to fig. 4, the fourth lens group 100 may include one or more lenses, may employ a convex lens or a concave lens, and may employ a spherical lens or an aspherical lens.
Preferably, the optical system may further include a protection window 16 disposed at a side of the light guide member 12 where the second band light enters.
Alternatively, the first optical element 120 may employ, but is not limited to, a prism, or the second optical element 123 may employ, but is not limited to, a prism. The first optical element 120 may employ a half-mirror prism. The first lens group 121, the second lens group 122, or the third lens group 15 may employ, but is not limited to, a convex lens, a concave lens, a plano-convex lens, or a plano-concave lens. The display assembly 11 may employ, but is not limited to, an OLED display or an LED display.
Optionally, the first band light is infrared light, and the second band light is visible light, so that the optical system can realize the fusion of a visible light image and an infrared light image.
The multi-channel fusion optical system of the embodiment can correct the optical axis by the following process so that the optical axis of the second waveband light incident to the imaging surface is coaxial with the optical axis of the image light. With reference to fig. 6 in conjunction with fig. 4, fig. 6 is a flowchart of a method for correcting an optical axis of a multi-channel fusion optical system in the present embodiment, which specifically includes the following steps:
s20: the optical axis of the first lens group 121 is adjusted to be parallel to the optical axis of the second lens group 122.
In the actual operation process, the image formed by the second band light at infinity is clear, and the image formed by the first band light is clear, which can be regarded as that the optical axis of the first lens group 121 is parallel to the optical axis of the second lens group 122. Specifically, the first lens group 121 may be adjusted first to make the image formed by the light of the second waveband at infinity clear; then, the first lens group 121 is fixed, and the second lens group 122 is adjusted to make the image formed by the light of the first wavelength band at infinity clear.
S21: the position of the display unit 11 is adjusted so that the center of the image formed by the first band light is coincident with the center of the image formed by the second band light on the image plane 13.
After the adjustment in the previous process, the second waveband light incident to the imaging surface 13 is made parallel to the optical axis of the image light, and then the display module 11 and the imaging surface 13 are fixed at the optically conjugate positions, respectively. The position of the display component 11 in the plane perpendicular to the optical axis is adjusted to make the image center formed by the first wave band light and the image center formed by the second wave band light coincide. Thus making the two channel light coaxial so that a fused image can be obtained at the imaging plane 13 at any object distance.
The multi-channel fusion optical system can realize image fusion of different object distances. When the optical system is used for correcting the optical axis, the image fusion can be realized at different object distances only by correcting image coincidence at infinity.
The multi-channel fusion optical system of the present embodiment can have three operation modes including a fusion mode, a visible light mode and an infrared light mode. The display module can be controlled to be closed to realize a visible light mode, and the infrared light mode can be realized by shielding the protection window. Can also realize day and night work. When the system has no power supply, the system can be used in dimensionality reduction, namely, the visible light working mode only in daytime.
The multi-channel fusion optical system provided by the utility model is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The multi-channel fusion optical system is characterized by comprising an imaging assembly, a display assembly, a light guide assembly and an imaging surface, wherein the imaging assembly is used for acquiring first waveband light of a target area and imaging, the display assembly is connected with the imaging assembly and used for displaying an image acquired by the imaging assembly and enabling the image light to be incident into the light guide assembly, the light guide assembly is used for acquiring second waveband light of the target area and imaging the light to the imaging surface, and the image light emitted by the display assembly is guided, transmitted and projected to the imaging surface, so that an image formed by the first waveband light is fused with an image formed by the second waveband light.
2. A multi-channel fusion optical system according to claim 1, wherein the light-guiding assembly includes a first optical element for transmitting incoming light of the second wavelength band for incidence on the imaging surface and for reflecting the image light from the display assembly for incidence on the imaging surface.
3. The multi-channel fusion optical system of claim 2, wherein the light guide assembly further comprises a first lens group disposed in an optical path between the first optical element and the imaging surface, the first lens group configured to image second band light rays passing through the first optical element to the imaging surface and project the image light rays passing through the first optical element to the imaging surface.
4. The multi-channel fusion optical system of claim 2, wherein the light guide assembly further includes a second optical element disposed in an optical path between the display assembly and the first optical element, the second optical element for reflecting the image light from the display assembly to the first optical element.
5. The multi-channel fusion optical system of claim 1, wherein the light guide assembly includes a second lens group disposed in an optical path between the display assembly and the imaging surface, the second lens group configured to project the image light from the display assembly to the imaging surface.
6. The multi-channel fusion optical system of claim 1, further comprising a turning element disposed in the optical path between the light guide element and the imaging plane, the turning element being configured to direct the image light emitted from the light guide element and the second wavelength band light to enter the imaging plane, so as to change the direction of the image formed on the imaging plane.
7. The multi-channel fusion optical system of claim 6, wherein the turning component includes a prism or a lens.
8. The multi-channel fusion optical system of any one of claims 1-7, further comprising a third lens group for imaging an image formed on the imaging surface.
9. The multi-channel fusion optical system of any one of claims 1-7, wherein the imaging assembly comprises a fourth lens group and a photosensitive imaging surface, and the fourth lens group is configured to capture light of the first wavelength band of the target region and image the light onto the photosensitive imaging surface.
10. The multi-channel fusion optical system of any one of claims 1-7 wherein the first band of light is infrared light and the second band of light is visible light.
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| CN202121165222.0U CN215494343U (en) | 2021-05-27 | 2021-05-27 | Multichannel fusion optical system |
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| CN202121165222.0U CN215494343U (en) | 2021-05-27 | 2021-05-27 | Multichannel fusion optical system |
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| CN215494343U true CN215494343U (en) | 2022-01-11 |
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Assignee: Yantai Airui Photo-Electric Technology Co.,Ltd. Assignor: INFIRAY TECHNOLOGIES CO.,LTD. Contract record no.: X2024980006468 Denomination of utility model: A multi-channel fusion optical system Granted publication date: 20220111 License type: Common License Record date: 20240617 |