CN215344717U - Image acquisition device and imaging device - Google Patents
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- CN215344717U CN215344717U CN202120373637.0U CN202120373637U CN215344717U CN 215344717 U CN215344717 U CN 215344717U CN 202120373637 U CN202120373637 U CN 202120373637U CN 215344717 U CN215344717 U CN 215344717U
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Abstract
The scheme discloses an image acquisition device and an imaging device, and relates to the field of image acquisition. The image acquisition device comprises a light splitting unit and at least one image sensor, the light splitting unit can reflect light rays of a specific waveband on the light splitting unit, and light rays of other wavebands penetrate through the light splitting unit, so that the light splitting unit transmits incident light rays to obtain a transmitted light beam and reflects the incident light rays to obtain a reflected light beam, one of the transmitted light beam and the reflected light beam is an ultraviolet light beam, one of the image sensors receives the ultraviolet light beam and generates an electric signal corresponding to ultraviolet light, the other light beam is received by the other image sensor and generates a corresponding electric signal, the function of respectively acquiring the electric signals of two different lights through one image acquisition device is realized, the visual angle difference does not occur when the image processor performs fusion processing on different electric signals, the fusion quality of pictures is ensured, meanwhile, the occupied space of the image acquisition device is compressed, and the process and the structure are simplified, the cost is saved.
Description
Technical Field
The application relates to the field of image acquisition, in particular to an image acquisition device and an imaging device.
Background
With the development of ultraviolet imaging technology, the ultraviolet imaging technology is applied to daily life of people.
At present, in an ultraviolet imaging device, a picture is generally acquired through a double-image acquisition device, that is, a visible light image acquisition device and an ultraviolet light image acquisition device respectively acquire a visible light image and an ultraviolet light image, then information of the two images is fused and processed, and image information is fed back, for example, when an anti-sunburn smearing trace is acquired, the visible light image and the ultraviolet light image need to be fused and compared to present a smearing trace effect.
However, two independent camera lenses are adopted to separately perform imaging to obtain two pictures, so that the occupied space is large, the size is large, and due to the fact that a visual angle difference exists between the two camera lenses, alignment errors can occur when visible light images and ultraviolet light images are fused, so that the pictures are blurred in imaging, the visual effect is poor, and the process of fusing the two pictures is complex.
SUMMERY OF THE UTILITY MODEL
The purpose of this scheme is to provide an image acquisition device and image device.
This scheme provides an image acquisition device and imaging device to when solving among the prior art for the image that realizes two kinds of different wave band light fuse the processing, use two image acquisition devices, acquire the image respectively, two image acquisition devices have the poor image that leads to two kinds of wave band light of angle of vision error to appear aligning error, fuse the problem that the processing procedure is complicated.
In order to solve the above technical problem, the embodiment of the present invention mainly provides the following technical solutions:
on the one hand, the embodiment of this scheme provides an image acquisition device, includes:
the light splitting unit is used for transmitting incident light to obtain a transmitted light beam and reflecting the incident light to obtain a reflected light beam;
and the at least one image sensor receives the transmitted light beams and generates electric signals corresponding to the ultraviolet rays, or receives the reflected light beams and generates electric signals corresponding to the ultraviolet rays.
In a preferred embodiment, the light splitting unit includes: the device comprises a plane mirror and a semi-transparent and semi-reflective film which is arranged on the plane mirror and is used for reflecting light rays with a specific wave band.
In a preferred embodiment, the image capturing apparatus further comprises:
the antireflection film is arranged on the upper surface of the light splitting unit and/or the lower surface of the light splitting unit;
when the antireflection film is arranged on the upper surface of the light splitting unit, the antireflection film is arranged on one side, far away from the plane mirror, of the semi-transparent and semi-reflective film;
when the antireflection film is arranged on the lower surface of the light splitting unit, the antireflection film is arranged on one side, away from the semi-transparent and semi-reflective film, of the plane mirror.
In a preferred embodiment, the light splitting unit includes: the semi-transparent semi-reflective film comprises two mutually spliced triangular prisms and a semi-transparent semi-reflective film arranged at the splicing positions of the two mutually spliced triangular prisms;
alternatively, the light splitting unit includes: two triangular prisms that splice each other, the cross-section of triangular prism is isosceles right triangle, two the planar concatenation department that the triangular prism hypotenuse corresponds is provided with semi-transparent semi-reflecting membrane.
In a preferred embodiment, the semi-transparent and semi-reflective film is an ultraviolet reflective film, and the image sensor receiving the reflected light beam is an ultraviolet image sensor;
or, the semi-transparent semi-reflective film is an ultraviolet light transmission film, and the image sensor for receiving the transmission light beams is an ultraviolet image sensor.
In a preferred embodiment, the image capturing apparatus further comprises:
at least one focusing unit disposed between the light splitting unit and the image sensor for focusing the image sensor; and/or the presence of a gas in the gas,
and the at least one focusing unit is arranged on the incident side of the light splitting unit and/or the light receiving side of the image sensor.
In a preferred embodiment, the image sensor receiving the transmitted light beam is positioned in the same plane as the image sensor receiving the reflected light beam;
the device also includes:
a light reflecting unit receiving the reflected light beam and transmitting the reflected light beam to an image sensor;
and a focusing unit is arranged between the light reflecting unit and the image sensor for receiving the reflected light beam.
In a preferred embodiment, the plane of the image sensor receiving the transmitted light beam is a reference plane;
the light splitting unit is provided with a preset angle alpha relative to the reference surface;
when the preset angle alpha is greater than or equal to 30 degrees and less than or equal to 60 degrees and is not equal to 45 degrees, the image sensor receiving the reflected light beam and the reference surface form an angle of 2 alpha;
and when the preset angle alpha is equal to 45 degrees, the image sensor for receiving the reflected light beam is arranged perpendicular to the reference surface.
In a preferred embodiment, the plane of the image sensor receiving the transmitted light beam is a reference plane; the semi-transparent semi-reflective film and the reference plane are arranged at an angle of 45 degrees, and the image sensor for receiving the reflected light beam and the image sensor for receiving the transmitted light beam are vertically arranged.
On the other hand, an embodiment of the present disclosure provides an imaging apparatus, including:
the above-described image acquisition device;
and the image processor is used for processing the electric signal of the image acquisition device to generate a corresponding image and carrying out fusion processing to obtain a processed final image.
The scheme has the following beneficial effects:
the scheme provides an image acquisition device includes beam splitting unit and at least one image sensor, beam splitting unit can reflect the light of specific wave band on beam splitting unit, and the light of other wave bands then sees through beam splitting unit, one of them is the ultraviolet light beam of transmission light beam and reflected light beam, the function of obtaining different signals of telecommunication respectively through an image acquisition device has been realized, the poor angle of sight can not appear when image processor fuses the processing, the fusion quality of picture has been guaranteed, image acquisition device's occupation space has been compressed simultaneously, technology and structure have been simplified, and the cost is saved.
According to the scheme, the focusing unit is additionally arranged between the light splitting unit and the ultraviolet image sensor, so that when the position of an object plane is changed, the focusing unit can still be moved in the axial direction of the focusing unit to be in the original position of an optical system, the ultraviolet image sensor can generate clear electric signals, the ultraviolet image generated by the image processor is clear, and the fusion quality of final images is guaranteed.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the embodiments of the present invention more clear and clear, and to implement the embodiments according to the content of the description, the following detailed description of the preferred embodiments of the present invention is provided with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 shows a cross-sectional view of an embodiment of an image acquisition device according to the present solution;
fig. 2 shows a cross-sectional view of another embodiment of an image acquisition device according to the present solution;
fig. 3 shows a cross-sectional view of a further embodiment of the image acquisition arrangement according to the present solution;
fig. 4 shows a cross-sectional view of a further embodiment of the image acquisition arrangement according to the present solution;
fig. 5 shows a cross-sectional view of a further embodiment of the image acquisition arrangement according to the present solution;
fig. 6 shows a cross-sectional view of a further embodiment of the image acquisition arrangement according to the present solution;
FIG. 7 shows a schematic view of an embodiment of an imaging device according to the present solution;
the reference numerals in fig. 1 to 7 include:
10-an image acquisition device, 11-a light splitting unit, 111-a semi-transparent and semi-reflective film, 12-an image sensor, 13-a focusing unit, 14-a light reflecting unit, 20-incident light, 21-transmitted light beams, 22-reflected light beams and 30-an image processor.
Detailed Description
In order to make the technical solutions and advantages of the present solution clearer, embodiments of the present solution will be described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the present application, and not an exhaustive list of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
Through analysis and research to prior art, when carrying out the fusion processing to two images of different wave band light, need use two image acquisition device to obtain the image of two different wave band light simultaneously, fuse the processing with two images again, but this kind of image fusion mode, because there is the visual angle difference between two image acquisition device, often leads to the image of two different wave band lights can not directly fuse, the alignment error appears, leads to the picture to synthesize fuzzy, and the fusion processing process is complicated.
Therefore, this scheme aims at providing an image acquisition device and imaging device, this image acquisition device gathers incident light through an image acquisition device to realize the separation of two kinds of different wave band light with the beam split unit, and receive two kinds of different wave band light by different image sensor respectively, produce the image that corresponds simultaneously, thereby guaranteed that the image can not appear the viewing angle difference at the in-process that produces, it is more convenient when further fusing the processing, the image after the integration is more clear.
Hereinafter, an image capturing device and an imaging device according to the present invention will be described in detail with reference to the accompanying drawings.
Example one
Fig. 1 to 6 are diagrams illustrating an embodiment of an image capturing device according to the present disclosure.
As shown in fig. 1 to 6, the present embodiment provides an image capturing apparatus 10 including: the system comprises a light splitting unit 11 and at least one image sensor 12, wherein the light splitting unit 11 is used for transmitting incident light 20 to obtain a transmitted light beam 21 and reflecting the incident light 20 to obtain a reflected light beam 22; at least one image sensor 12 receives the transmitted beam 21 and generates an electrical signal corresponding to ultraviolet light, or receives the reflected beam 22 and generates an electrical signal corresponding to ultraviolet light.
Specifically, the image acquisition device 10 includes a light splitting unit 11 and at least one image sensor 12, when an incident light 20 is incident on the image acquisition device 10, the light splitting unit 11 transmits the incident light 20 to obtain a transmitted light beam 21, the light splitting unit 11 reflects the incident light 20 to obtain a reflected light beam 22, one of the transmitted light beam 21 and the reflected light beam 22 is ultraviolet, a function of respectively acquiring different electrical signals through one image acquisition device 10 is realized, the image processor 30 processes the electrical signals again to generate corresponding pictures, and a viewing angle difference does not occur during the fusion processing of the pictures corresponding to the different electrical signals. The problem of among the prior art because two independent image sensor separately acquire the signal of telecommunication, the image sensor occupation space that leads to is many to and when two image sensor acquire the signal of telecommunication respectively, because the visual angle difference between the image sensor leads to the picture that different signal of telecommunication correspond to produce alignment error when fusing the processing, lead to the picture to form images fuzzy, the processing procedure is complicated is avoided.
In one embodiment, as shown in fig. 1, the light splitting unit 11 includes a plane mirror and a transflective film 111, the transflective film 111 is used for reflecting the incident light 20 of a specific wavelength band, and the transflective film 111 is disposed on the upper surface of the plane mirror.
Specifically, the light splitting unit 11 includes a plane mirror and a transflective film 111 having a specific wavelength band disposed on an upper surface thereof, so that light in the specific wavelength band is reflected when contacting the upper surface of the light splitting unit 11, and the light can be directly reflected instead of being reflected after penetrating through a thick plane mirror, thereby reducing the problem of light attenuation.
In the scheme, the image acquisition device further comprises an antireflection film, and the antireflection film is arranged on the upper surface of the light splitting unit 11 and/or the lower surface of the light splitting unit 11; when the antireflection film is arranged on the upper surface of the light splitting unit, the antireflection film is arranged on one side, far away from the plane mirror, of the semi-transparent and semi-reflective film; when the antireflection film is arranged on the lower surface of the light splitting unit, the antireflection film is arranged on one side, away from the semi-transparent and semi-reflective film, of the plane mirror.
Specifically, the light splitting unit 11 is further provided with an antireflection film, which may be disposed on the upper surface of the light splitting unit 11, or both the upper surface and the lower surface of the light splitting unit are provided with antireflection films. When the antireflection film is arranged on the upper surface of the light splitting unit 11, the antireflection film is arranged on the side, away from the plane mirror, of the semi-transparent and semi-reflective film 111, and is used for reducing the reflection effect of the wave bands except for the specific reflection wave band on the upper surface of the light splitting unit 11, if the reflection wave band is an ultraviolet wave band, the antireflection film corresponds to the light wave bands except for the ultraviolet light, and the reflection loss of the light rays except for the ultraviolet light on the upper surface of the light splitting unit 11 is reduced; when the antireflection film is arranged on the lower surface, the antireflection film is arranged on the side of the plane mirror far away from the semi-transparent and semi-reflective film 111, so as to reduce the reflection effect of the wave bands outside the specific reflection wave band on the lower surface of the light splitting unit 11. Thereby ensuring that the light transmission of the wavelength band outside the specific reflection wavelength band is stronger, and the electrical signal obtained by the image sensor 12 receiving the transmitted light beam 21 is clearer.
In one embodiment, as shown in fig. 2, the light splitting unit 11 includes two triangular prisms spliced to each other and a semi-transparent semi-reflective film 111 disposed at the splicing position of the two triangular prisms spliced to each other, or the triangular prisms have a cross section of an isosceles right triangle, and the semi-transparent semi-reflective film is disposed at the splicing position of the planes corresponding to the hypotenuses of the two triangular prisms.
Specifically, the light splitting unit 11 includes two mutually spliced triangular prisms, the prism cross section is an isosceles right triangle, the widest surfaces of the hypotenuses of the two prisms are bonded, and the splicing part between the two prisms is provided with the semi-transparent semi-reflective film 111 with a specific waveband.
In one embodiment, as shown in fig. 1 to 6, the transflective film 111 is an ultraviolet reflective film, and the image sensor 12 receiving the reflected light beam 22 is an ultraviolet image sensor; or, the transflective film 111 is an ultraviolet light transmissive film, and the image sensor receiving the transmitted light beam 21 is an ultraviolet image sensor.
Specifically, the transflective film 111 is an ultraviolet reflective film, wherein the transflective film 111 only needs to be manufactured according to an ultraviolet band, the process is simple, and the light reflected to the image sensor 12 only includes an ultraviolet portion, so that the image sensor 12 receiving the reflected light beam 22 can be the image sensor 12 not covered by any filter film, and thus, an ultraviolet image sensor is not needed, the process and the structure are simplified, and the cost is saved.
Further, the transflective film 111 is an ultraviolet light transmissive film, and the image sensor 12 receiving the transmissive light beam 21 is an ultraviolet image sensor. Since the incident light 20 has different refractive indexes corresponding to the light of each wavelength band in the medium, the light of each wavelength band is dispersed when the incident angle is not zero. Because the visible light has a longer wavelength from 380nm at the beginning of purple to 780nm at the end of red, the original light with different colors corresponding to the same pixel point has a certain deviation after passing through the light splitting unit 11, resulting in astigmatism. Therefore, the proposal directly reflects the light except the ultraviolet light, and prevents the astigmatism of the light except the ultraviolet light. The ultraviolet part has concentrated wave bands, for example, the wave band is mainly 365nm ultraviolet light under the condition that a light supplement lamp is provided, so that the dispersion is small.
In this solution, as shown in fig. 3 to 4, the image capturing device 10 further includes at least one focusing unit 13, and the focusing unit 13 is disposed between the light splitting unit 11 and the image sensor 12, and is configured to focus the image sensor 12.
Specifically, the image capturing device 10 further includes at least one focusing unit 13, which may be a focusing lens, and can be moved in the axial direction to form an image in the original position of the optical system when the position of the object plane is changed. More specifically, the focusing unit 13 is disposed between the light splitting unit 11 and any one of the image sensors 12, and focuses the image sensor 12 to ensure that the signal obtained by the image sensor is clear.
In one embodiment, the image capturing device further comprises at least one focusing unit disposed on the incident side of the beam splitting unit and/or on the light receiving side of the image sensor.
Specifically, the image capturing device 10 may further include a focusing unit, where the focusing unit may be one lens or a combination of a plurality of lenses, and the focusing unit may be disposed before the incident light 20 enters the light splitting unit 11, or disposed after the incident light 20 is transmitted or reflected, and is not specifically limited in position, so as to realize convergence of the incident light 20 and reduce light loss.
In this scheme, as shown in fig. 4, the image capturing apparatus further includes a light reflecting unit 14, which receives the reflected light beam and reflects the reflected light beam to the image sensor; wherein the image sensor 12 receiving the transmitted light beam 21 and the image sensor 12 receiving the reflected light beam 22 are disposed on the same plane; at least one of the focusing units 13 is disposed between the light reflecting unit 14 and the image sensor 12 that receives the reflected light beam 22.
Specifically, the image capturing device further comprises a reflective unit 14, the reflective unit 14 is disposed parallel to the surface of the transflective film 111, and is used for reflecting the reflected light beam 22, thereby ensuring that the image sensor receiving the reflected light beam and the image sensor receiving the transmitted light beam are in the same plane, the optical path incident on the image sensor 12 receiving the reflected light beam 22 is longer than the optical path incident on the image sensor 12 receiving the transmitted light beam 21, when the image sensor 12 receiving the transmitted beam 21 is in focus, the image sensor 12 receiving the reflected beam 22 cannot be in focus, and therefore, the focusing unit 13 is required to perform focusing, the focusing unit 13 is interposed between the light reflecting unit 14 and the image sensor 12 receiving the reflected light beam 22, the image sensor 12 receiving the reflected beam 22 is focused to ensure that the electrical signal generated by the image sensor 12 receiving the reflected beam 22 is sharp.
In one embodiment, as shown in fig. 5 to 6, the plane of the image sensor 12 receiving the transmitted beam 21 is the reference plane; the light splitting unit 11 is provided with a preset angle alpha relative to the reference surface; when the preset angle α is greater than or equal to 30 ° and less than or equal to 60 °, and the preset angle α is not equal to 45 °, the image sensor 12 receiving the reflected light beam 22 is disposed at an angle of 2 α with the reference plane; when the preset angle α is equal to 45 °, the image sensor 12 receiving the reflected light beam 22 is disposed perpendicular to the reference plane. The preset angle α is an included angle between the plane of the transflective film 111 and the reference plane.
Specifically, the light splitting unit 11 is provided with a preset angle α with respect to the reference plane; when the preset angle α is greater than or equal to 30 ° and less than or equal to 60 °, and the preset angle α is not equal to 45 °, the image sensor 12 receiving the reflected light beam 22 is disposed at an angle of 2 α with respect to the reference plane, the image sensor 12 receiving the reflected light beam 22 is perpendicular to the reflected light beam 22, the image sensor 12 receiving the reflected light beam 22 has a certain inclination angle with respect to the reference plane, on the basis of ensuring imaging, the image capturing device 10 can be made thinner, the image sensor 12 receiving the reflected light beam 22 changes its inclination angle correspondingly with the change of the angle of the light splitting unit 11, the image sensor 12 receiving the reflected light beam 22 can be mounted on a base, the base includes a base and a rotating plate for fixing the image sensor 12, the rotating plate and the base are fixed by a roller, the roller fixing position has a position limiting device for limiting the rotating plate at a certain angle, thereby ensuring that the image sensor 12 can be limited at a certain angle, a linkage structure is arranged between the rotating plate and the light splitting unit, so that the angle of the image sensor 12 can be changed synchronously with the angle change of the light splitting unit; when the predetermined angle α is equal to 45 °, the image sensor 12 receiving the reflected light beam 22 is perpendicular to the reference plane, and the image sensor 12 receiving the reflected light beam 22 is perpendicular to the reflected light beam 22, without additional calculation of the angle, and without additional reflection means to ensure that the reflected light beam 22 impinges on the image sensor 12 receiving the reflected light beam 22. The image sensor 12 receiving the reflected light beam 22 and the image sensor 12 receiving the transmitted light beam 21 are at the same distance from the central point of the light splitting unit 11, which ensures that the corresponding focal distances when the two image sensors 12 generate the electrical signals are the same, so that both the two image sensors 12 can generate clear electrical signals, otherwise, only one image sensor 12 can generate clear electrical signals, and the image generated by the image processor 30 in the later period is unclear.
In one embodiment, as shown in fig. 1 to 2, a plane of the image sensor receiving the transmitted light beam is a reference plane, a plane of the image sensor 12 receiving the transmitted light beam 21 is a reference plane, the transflective film 111 is disposed at an angle of 45 ° with respect to the reference plane, and the image sensor 12 receiving the reflected light beam 22 and the image sensor 12 receiving the transmitted light beam 21 are disposed perpendicularly.
Specifically, when the light splitting unit 11 is two isosceles right triangular prisms spliced with each other, or when the light splitting unit 11 is a plane mirror and is disposed at 45 ° from the reference plane, the reflected light beam 22 is emitted in parallel to the reference plane, the image sensor 12 receiving the reflected light beam 22 is received perpendicular to the reflected light beam 22, and at this time, the image sensor 12 receiving the reflected light beam 22 is disposed perpendicular to the reference plane, and no additional angle calculation is required. Since the image capturing device 10 is provided with the focusing unit 13, different image sensors 12 can be focused by the focusing unit 13, and the image sensors 12 receiving the reflected light beam 22 and the image sensors 12 receiving the transmitted light beam 21 do not need to have the same distance from the central point of the light splitting unit 11, and a plurality of image sensors can all receive signals clearly. When the structure is applied to a camera of a mobile phone, the image sensor 12 for receiving the reflected light beam 22 and the image sensor 12 for receiving the transmitted light beam 21 are arranged perpendicular to each other, and the image sensor 12 for receiving the transmitted light beam 21 has limited space arrangement in the mobile phone structure, so that an optical zoom device cannot be configured, and the application of an ultraviolet image does not need too clear image quality, so that the image sensor 12 for receiving the transmitted light beam 21 can be set as an ultraviolet image sensor; the image sensor 12 receiving the reflected light beam 22 is perpendicular to the light incident direction of the mobile phone camera, and there is more space in the direction parallel to the mobile phone screen for disposing the optical zoom device, and the color image is more desirable for image quality, so the image sensor 12 receiving the reflected light beam 22 can be disposed with a visible light sensor. Therefore, the ultraviolet image and the visible light image with high image quality can be obtained simultaneously through one camera in the limited inner space of the mobile phone.
Example two
Fig. 7 is an embodiment of an imaging device according to the present invention.
As shown in fig. 7, the imaging device provided by the present disclosure includes an image capturing device 10 and an image processor 30, where the image processor 30 processes the electrical signal of the image capturing device 10 to generate a corresponding image and performs fusion processing to obtain a final processed image.
In a specific implementation, the imaging device includes an image capturing device 10 and an image processor 30, the image capturing device 10 may generate electrical signals corresponding to a plurality of light rays simultaneously, and send the electrical signals to the image processor 30, and the image processor 30 generates corresponding images and performs fusion processing to obtain a final fused image. The function of respectively acquiring different light signals is realized through an image acquisition device 10, on one hand, the problem that a plurality of image sensors occupy a large space due to the fact that a plurality of independent image sensors separately acquire electric signals in the prior art is avoided, on the other hand, in the prior art, when a plurality of image sensors respectively acquire electric signals, due to the fact that the visual angle difference between the image sensors causes a plurality of electric signals to be transmitted to an image processor, errors are generated during fusion processing, image imaging is fuzzy, and the processing process is complex is solved.
Specifically, the image capturing device 10 may be disposed on a handheld terminal such as a video camera, a mobile phone, a tablet computer, or a smart home product.
Specifically, the image capturing device 10 in the second embodiment may directly adopt the image capturing device 10 provided in the first embodiment, and for a specific implementation structure, reference may be made to relevant contents described in the first embodiment, which is not described herein again.
In conclusion, according to the scheme, the incident light is collected through one image collecting device, so that the visual angle difference of the two image collecting devices when the incident light is collected is eliminated, and the image quality of images generated by different wave band light during fusion is ensured.
The scheme can realize the display of the images generated by two different wave band lights on one image, so that a user can more clearly know the difference display of the different wave band lights on one image, the visual experience of the user is improved, the process and the structure are simplified, and the cost is saved.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It should be noted that the above-mentioned embodiments illustrate rather than limit the solution, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The solution can be implemented by means of a device comprising several different components. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. An image acquisition apparatus, comprising:
the light splitting unit is used for transmitting incident light to obtain a transmitted light beam and reflecting the incident light to obtain a reflected light beam;
at least one image sensor for receiving the transmitted light beam and generating an electrical signal corresponding to the ultraviolet light, or receiving the reflected light beam and generating an electrical signal corresponding to the ultraviolet light;
the image sensor for receiving the transmitted light beam and the image sensor for receiving the reflected light beam are arranged on the same plane;
a light reflecting unit receiving the reflected light beam and transmitting the reflected light beam to an image sensor;
and a focusing unit is arranged between the light reflecting unit and the image sensor for receiving the reflected light beam.
2. The image capturing device of claim 1,
the light splitting unit includes: the device comprises a plane mirror and a semi-transparent and semi-reflective film which is arranged on the plane mirror and is used for reflecting light rays with a specific wave band.
3. The image capturing device according to claim 2, further comprising:
the antireflection film is arranged on the upper surface of the light splitting unit and/or the lower surface of the light splitting unit;
when the antireflection film is arranged on the upper surface of the light splitting unit, the antireflection film is arranged on one side, far away from the plane mirror, of the semi-transparent and semi-reflective film;
when the antireflection film is arranged on the lower surface of the light splitting unit, the antireflection film is arranged on one side, away from the semi-transparent and semi-reflective film, of the plane mirror.
4. The image capturing device of claim 1,
the light splitting unit includes: the semi-transparent semi-reflective film comprises two mutually spliced triangular prisms and a semi-transparent semi-reflective film arranged at the splicing positions of the two mutually spliced triangular prisms;
alternatively, the light splitting unit includes: two triangular prisms that splice each other, the cross-section of triangular prism is isosceles right triangle, two the planar concatenation department that the triangular prism hypotenuse corresponds is provided with semi-transparent semi-reflecting membrane.
5. The image capturing device according to any one of claims 2 to 4,
the semi-transparent semi-reflective film is an ultraviolet reflective film, and the image sensor for receiving the reflected light beam is an ultraviolet image sensor;
or, the semi-transparent semi-reflective film is an ultraviolet light transmission film, and the image sensor for receiving the transmission light beams is an ultraviolet image sensor.
6. The image capturing device according to claim 1, further comprising:
the focusing unit is arranged between the light splitting unit and the image sensor for receiving the transmitted light beams and is used for focusing the image sensor for receiving the transmitted light beams; and/or the presence of a gas in the gas,
and the at least one focusing unit is arranged on the incident side of the light splitting unit and/or the light receiving side of the image sensor.
7. An image forming apparatus, comprising:
the image acquisition apparatus of any one of claims 1 to 6;
and the image processor is used for processing the electric signal of the image acquisition device to generate a corresponding image and carrying out fusion processing to obtain a processed final image.
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| CN202120373637.0U CN215344717U (en) | 2021-02-10 | 2021-02-10 | Image acquisition device and imaging device |
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| WO2024001797A1 (en) * | 2022-06-28 | 2024-01-04 | 华为技术有限公司 | Identification device and electronic device |
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| WO2024001797A1 (en) * | 2022-06-28 | 2024-01-04 | 华为技术有限公司 | Identification device and electronic device |
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