CN112198752A

CN112198752A - Imaging device and electronic apparatus

Info

Publication number: CN112198752A
Application number: CN202011053147.9A
Authority: CN
Inventors: 袁博; 屈坤; 郑琼羽; 程四海
Original assignee: Insta360 Innovation Technology Co Ltd
Current assignee: Insta360 Innovation Technology Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-08
Anticipated expiration: 2040-09-29
Also published as: WO2022068896A1; CN112198752B

Abstract

The present application relates to an imaging apparatus and an electronic device. The first lens module in the imaging device collects at least part of the first light beam and is turned to a part of the photosensitive surface of the image imaging module through the light path conversion module. The second lens module collects at least part of the second light beam and is turned to the other part of the photosensitive surface of the image imaging module through the light path conversion module. The image imaging module receives at least part of the first light beam and at least part of the second light beam respectively, and therefore optical signals in different directions can be received in a partitioned mode on the image imaging module. The number of the collected first light beams and the number of the collected second light beams are adjusted through the first lens module and the second lens module, and different photosensitive areas of the image imaging module can be filled respectively. Therefore, the imaging device fully utilizes the photosensitive area of the image imaging module, the spatial resolution is lost to a lower degree, the utilization rate of the image imaging module is improved, and the cost is reduced.

Description

Imaging device and electronic apparatus

Technical Field

The present disclosure relates to the field of imaging technologies, and in particular, to an imaging device and an electronic apparatus.

Background

At present, the imaging system of the panoramic camera takes a module as a design element, and two modules of the panoramic camera are in 180-degree rotational symmetric distribution with the same optical axis. The work of two fisheye modules, twin-lens and sensor conversion optical signal formation of image separately promptly, the formation of image shows for 360 all-roundabouts, can the short-focus lens of full play if fisheye and wide-angle lens imaging characteristics, catches the unique visual angle that traditional camera can't catch. With the popularization of the medium-size image sensor, the real-time panoramic imaging of medium-size scenes such as vehicle-mounted and security monitoring can be realized.

However, in the process of implementing the present invention along with the increase of the size of the image sensor, the inventor finds that at least the following problems exist, the utilization rate of the imaging image sensor is not high, the area ratio of the maximum imaging circle to the image sensor is low, the utilization rate is not high, and the use cost is greatly increased.

Disclosure of Invention

In view of the above, it is necessary to provide an imaging apparatus and an electronic device in view of the above problems.

The application provides an imaging device. The imaging device comprises a first lens module, a second lens module, a light path conversion module and an image imaging module. The first lens module is used for collecting at least part of the first light beam and transmitting the first light beam to the light path conversion module. The second lens module is used for collecting at least part of the second light beam and transmitting the second light beam to the light path conversion module. The light path conversion module is arranged on the light paths of the first light beam and the second light beam and used for converting the light paths of the first light beam and the second light beam and transmitting the converted light paths to the image imaging module. The image imaging module is used for receiving the first light beam and the second light beam converted by the light path conversion module and performing photoelectric conversion on the first light beam and the second light beam to form an image.

In one embodiment, the first lens module comprises a first lens component for collecting all the first light beams and transmitting the first light beams to the light path conversion module.

In one embodiment, the first lens module further comprises a first intercepting component. The first interception component is arranged on a light path of the first light beam and is used for intercepting part of the first light beam passing through the first lens component. And after part of the first light beams pass through the light path conversion module, an image is formed on one side of the central axis of the image imaging module, which is close to the second lens module.

In one embodiment, the intercepting area of the first intercepting component is 1/3 to 1/2 of the area of the first imaging circle. Wherein the first imaging circle area is an imaging area formed by all the first light beams.

In one embodiment, the second lens module includes a second lens component. The second lens assembly is used for collecting all the second light beams and transmitting the second light beams to the light path conversion module.

In one embodiment, the second lens module includes a second intercepting component. The second interception component is arranged on a light path of the second light beam and is used for intercepting part of the second light beam passing through the second lens component. And after part of the second light beams pass through the light path conversion module, an image is formed on one side of the central axis of the image imaging module, which is close to the first lens module.

In one embodiment, the second intercepting component has an intercepting area that is 1/3 to 1/2 of the area of the second imaging circle. Wherein the second imaging circle area is an imaging area formed by all the second light beams.

In one embodiment, the optical path conversion module includes a first reflective component and a second reflective component. The first reflection assembly is arranged on a light path of the first light beam and used for reflecting the first light beam to the image imaging module. The second reflection assembly is arranged on a light path of the second light beam and used for reflecting the second light beam to the image imaging module.

In one embodiment, the optical path conversion module further comprises a central axis intercepting component. The middle axis intercepting component is arranged at the middle axis position of the image imaging module. The middle shaft intercepting component is used for intercepting part of the first light beam after passing through the first reflecting component. After part of the first light beams pass through the first reflection assembly, an image is formed on one side, close to the second reflection assembly, of the central axis of the image imaging module. And the middle shaft intercepting component is used for intercepting part of the second light beam after passing through the second reflecting component. And after part of the second light beam passes through the second reflection assembly, an image is formed on one side of the central axis of the image imaging module, which is close to the first reflection assembly.

In one embodiment, the present application provides an electronic device. The electronic device comprises the imaging apparatus of any one of the above embodiments.

In the imaging device and the electronic device, the first lens module collects at least part of the first light beam and is turned to a part of the photosensitive surface of the image imaging module through the light path conversion module. The second lens module collects at least part of the second light beam and is turned to the other part of the photosensitive surface of the image imaging module through the light path conversion module. At this moment, the image imaging module receives at least part of the first light beam and at least part of the second light beam respectively, so that the image imaging module is divided to receive optical signals in different directions. Meanwhile, different photosensitive areas of the image imaging module can be respectively filled by adjusting the collected first light beam and the collected second light beam through the first lens module and the second lens module. Therefore, the imaging device fully utilizes the photosensitive area of the image imaging module and improves the utilization rate of the image imaging module. When the large-size image sensor is adopted, the imaging device can carry out regional imaging, the spatial resolution (or called angular resolution PPD) is lost to a lower degree, the utilization rate of the large-size image sensor is greatly improved, and the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an imaging device in one embodiment provided in the present application.

Fig. 2 is a schematic structural diagram of an imaging device in another embodiment provided in the present application.

FIG. 3 is a schematic view of an imaging area formed by the imaging device of FIG. 2 as provided herein.

Fig. 4 is a table comparing performance parameters of the imaging device provided in the present application with those of the conventional structure.

Fig. 5 is a schematic structural diagram of an imaging device in yet another embodiment provided in the present application.

FIG. 6 is a schematic view of an imaging area formed by the imaging device of FIG. 5 as provided herein.

Fig. 7 is a table comparing performance parameters of the image forming apparatus provided in the present application with those of the conventional structure.

Fig. 8 is a schematic structural diagram of an imaging device in yet another embodiment provided by the present application.

FIG. 9 is a schematic view of an imaging area formed by the imaging device of FIG. 8 as provided herein.

Fig. 10 is a table comparing performance parameters of the image forming apparatus provided in the present application with those of the conventional structure.

Description of reference numerals: the imaging device 100, the first lens module 10, the second lens module 20, the light path conversion module 30, the image imaging module 40, the first lens assembly 110, the first blocking assembly 120, the second lens assembly 210, the second blocking assembly 220, the first reflecting assembly 310, the second reflecting assembly 320, the middle axis blocking assembly 330, the first image 410, the second image 420, the photosensitive surface display area 430, the first overlapping area 441, the second overlapping area 442, the third blocking area 451, the fourth blocking area 452, the fifth blocking area 461, the sixth blocking area 462, the seventh blocking area 471 and the eighth blocking area 472.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, an image forming apparatus 100 is provided. The imaging device 100 includes a first lens module 10, a second lens module 20, an optical path conversion module 30, and an image imaging module 40. The first lens module 10 is configured to collect at least a portion of the first light beam and transmit the collected at least a portion of the first light beam to the light path conversion module 30. The second lens module 20 is configured to collect at least a portion of the second light beam and transmit the second light beam to the optical path conversion module 30. The optical path conversion module 30 is disposed on the optical paths of the first light beam and the second light beam, and is configured to convert the optical paths of the first light beam and the second light beam and transmit the converted optical paths to the image imaging module 40. The image imaging module 40 is configured to receive the first light beam and the second light beam converted by the light path conversion module 30, and perform photoelectric conversion on the first light beam and the second light beam to form an image.

In this embodiment, the first lens module 10 collects at least a portion of the first light beam, and the first light beam is turned to a portion of the photosensitive surface of the image imaging module 40 by the light path conversion module 30. The second lens module 20 collects at least a portion of the second light beam, and the second light beam is turned to another portion of the photosensitive surface of the image imaging module 40 by the light path conversion module 30. At this time, the image imaging module 40 receives at least a part of the first light beam and at least a part of the second light beam, respectively, so that the image imaging module 40 is divided to receive optical signals in different directions. Meanwhile, different photosensitive areas of the image imaging module 40 can be filled by adjusting the amounts of the collected first light beam and the second light beam through the first lens module 10 and the second lens module 20. Therefore, with the imaging device 100, the photosensitive area of the image imaging module 40 is fully utilized, and the utilization rate of the image imaging module 40 is improved. When a large-size image sensor is adopted, the imaging device 100 can perform zoned imaging, so that the spatial resolution (or called angular resolution PPD) is lost to a lower degree, the utilization rate of the large-size image sensor is greatly improved, and the cost is reduced.

Therefore, the imaging device 100 collects at least a portion of the first light beam and at least a portion of the second light beam through the first lens module 10 and the second lens module 20, respectively. The first light beam and the second light beam are transmitted to the image imaging module 40 through the light path conversion module 30. The image imaging module 40 performs photoelectric conversion to form an electronic image.

Referring to FIG. 2, in one embodiment, the first lens module 10 includes a first lens element 110. The first lens assembly 110 is configured to collect all the first light beams and transmit the first light beams to the light path conversion module 30.

In this embodiment, the first lens assembly 110 collects all of the first light beams and transmits all of the first light beams to the light path conversion module 30. All the first light beams are transmitted to a part of photosensitive areas of the image imaging module 40 by turning through the light path conversion module 30, and the part of photosensitive areas of the image imaging module 40 are filled. Meanwhile, the first lens element 110 collects the first light beam, and after the first light beam is turned by the light path conversion module 30, a specific photosensitive area of the image imaging module 40 may be filled. Thus, the imaging device 100 may have selective filling of the photosensitive area of the image imaging module 40.

The first lens assembly 110 may be a wide-angle lens or a fisheye lens.

In one embodiment, the second lens module 20 includes a second lens component 210. The second lens assembly 210 is configured to collect all of the second light beams and transmit the second light beams to the light path conversion module 30.

In this embodiment, the second lens assembly 210 collects all of the second light beams and transmits all of the second light beams to the light path conversion module 30. All the second light beams are transmitted to a part of the photosensitive area of the image imaging module 40 by turning through the light path conversion module 30, and the part of the photosensitive area of the image imaging module 40 is filled.

In one embodiment, the second light beam and the first light beam have different transmission directions, and after being turned by the optical path conversion module 30, different photosensitive areas of the image imaging module 40 can be filled, so as to fully utilize the image imaging module 40. The first lens assembly 110 may be a wide-angle lens or a fisheye lens.

In one embodiment, the transmission direction of the second light beam is opposite to the transmission direction of the first light beam, so that the field angle of the imaging device 100 is the maximum, and a 360-degree panoramic capture picture can be realized. The transmission direction of the first light beam is the direction of the light incident surface of the first lens element 110. The transmission direction of the second light beam is the direction of the light incident surface of the second lens element 210.

In one embodiment, the first lens component 110 and the second lens component 210 are both wide-angle lenses. By providing the first lens element 110 and the second lens element 210 as two wide-angle lenses, the lens can be used under the condition that the scene receives a ring-shaped imaging surface instead of a complete imaging spherical surface.

In one embodiment, the first lens component 110 is a fisheye lens. The second lens element 210 is a wide-angle lens. The first light beam collected by the first lens component 110 (fish-eye lens) is converted into an image of most angles by the image imaging module 40. The second lens element 210 (wide-angle lens) is responsible for imaging at a small portion of angles. At this time, the image portion of the image that exceeds the stitching angle and is converted by the image imaging module 40 from the second light beam collected by the second lens assembly 210 (wide-angle lens) retains the distortion information of the wide-angle lens. Furthermore, when image splicing is executed, calibration can be carried out according to the relation between the field of view generated by the image overlapping part of the wide-angle lens and the fisheye lens and the real image height. Therefore, the distortion curve of the fisheye lens is basically superposed with the distortion curve of the wide-angle lens, so that the distortion correction of the whole visual field can be realized. Therefore, the distortion parameters of the fisheye lens are acquired through the overlapping part of the imaging of the fisheye lens and the wide-angle lens, so that the fisheye lens is popularized to the marginal field of view, and the imaging full-field distortion of the fisheye lens is corrected.

In one embodiment, the first lens component 110 is a fisheye lens. The second lens assembly 210 is a fisheye lens. The first lens assembly 110 and the second lens assembly 210 are configured as two fisheye lenses, so that the lens can be applied to the situation of a shooting environment requiring a full 360-degree panoramic angle.

In one embodiment, the field angle of a single fisheye lens may reach 200 ° or even higher. The two fisheye lens modules are superposed with the optical axis and symmetrically distributed in a direction of 180 degrees, a positioning line is arranged in the camera middle frame, and the clamping groove is matched with a thread fixing mode for locking to ensure the assembling precision.

Therefore, through the combination mode of the fish-eye lenses and the wide-angle lenses, the double-fish-eye lenses or the double-wide-angle lenses or the combination of the fish-eye lenses and the wide-angle lenses are selected, so that the lenses are more flexibly selected. The algebraic sum of the minimum values of the maximum angles of view in the respective directions is equal to or greater than 360 °. Meanwhile, the combination of the fisheye lens and the wide-angle lens can improve the imaging quality on the basis of considering 360-degree omnibearing imaging in the conventional double-fisheye module, and control variables are increased to improve the harmful distortion of a panoramic picture.

In one embodiment, the image imaging module 40 is an image sensor. The image sensor has a photosensitive surface. The first light beam is directed to the photosensitive surface of the image sensor by the first reflective element 310. The second light beam is guided to the photosensitive surface of the image sensor by the second reflecting component 320. Therefore, the image sensor converts the light image on the light sensing surface into an electric signal in a corresponding proportional relation with the light image by utilizing the photoelectric conversion function of the photoelectric device, and further realizes image imaging.

In one embodiment, the image imaging module 40 is an image sensor sized on the order of 1 "larger than currently.

Referring to fig. 2, in an embodiment, the optical path conversion module 30 includes a first reflective element 310 and a second reflective element 320. The first reflection assembly 310 is disposed on the optical path of the first light beam, and is configured to reflect the first light beam to the image imaging module 40. The second reflection assembly 320 is disposed on the optical path of the second light beam, and is configured to reflect the second light beam to the image imaging module 40.

In this embodiment, the first light beam is deflected to a portion of the photosensitive area of the image capturing module 40 by the first reflecting component 310. The second light beam is deflected to a portion of the photosensitive area of the image imaging module 40 by the second reflecting element 320. By setting the positions of the first reflection assembly 310 and the second reflection assembly 320, the positions of the first light beam and the second light beam irradiated to the image imaging module 40 can be changed. Thus, the first reflection assembly 310 and the second reflection assembly 320 can assist in realizing the area division of the image imaging module 40.

In one embodiment, the first reflective component 310 includes at least one right angle prism that efficiently internally refracts the first light beam. The second reflecting component 320 includes at least one right-angle prism, which can efficiently internally perform the optical path deflection on the second light beam.

In one embodiment, the first reflecting component 310 includes a component formed by a mirror, such as a right-angle prism and a mirror, for performing an optical path deflection on the first light beam to the image imaging module 40. The second reflection assembly 320 includes an assembly formed by lenses such as a right-angle prism and a mirror, and is configured to perform optical path folding on the second light beam to the image imaging module 40.

In one embodiment, the first reflective component 310 and the second reflective component 320 are right-angle prisms, and perform optical path folding on the first light beam and the second light beam, respectively. And, the first and second light beams are made to be perpendicularly incident to the photosensitive surface of the image forming module 40 by the first and

second reflection assemblies

310 and 320.

Referring to fig. 3, the first light beam is received by the first lens element 110, transmitted to the first reflective element 310, deflected and projected to one side of the image forming module 40, and photoelectrically converted to form a scene at the entrance pupil side of the first lens element 110. The second light beam on the other side is received by the second lens assembly 210, transmitted to the second reflection assembly 320, deflected and projected to the other side of the image imaging module 40, and photoelectrically converted to image the scene on the entrance pupil side of the second lens assembly 210. Thus, the image formation shown in fig. 3 is formed by the image forming apparatus 100. Wherein the first image 410 is the first lens assembly 110 entrance pupil side scene. The second image 420 is the second lens assembly 210 at the entrance pupil side of the scene. The photosensitive surface display area 430 is a photosensitive surface (or a photosensitive area) of the image forming module 40. At this time, 360 ° imaging can be performed by selecting a lens with a suitable field angle through the imaging apparatus 100. Meanwhile, when the large-size image sensor is used, the photosensitive surface display area 430 of the image imaging module 40 is divided by the imaging device 100, so that the photosensitive area of the image imaging module 40 is fully utilized, the spatial resolution PPD is lost to a lower degree, and the utilization rate of the large-size image sensor is greatly improved.

Referring to fig. 4, the table in fig. 4 shows the related performance parameters under different lens combinations. By comparing the performance parameters with the conventional structure, it can be seen that the imaging apparatus 100 provided by the present application is superior to the conventional structure in terms of both the field angle and the utilization performance.

Referring to fig. 5 and 6, in an embodiment, the first lens module 10 further includes a first blocking component 120. The first intercepting component 120 is disposed on the light path of the first light beam, and is configured to intercept the first light beam passing through the first lens component 110 in the first area. After the first light beam of the first region passes through the light path conversion module 30, an image is formed on one side of the central axis of the image imaging module 40, which is close to the second lens module 20.

In this embodiment, the first intercepting component 120 is disposed between the first lens component 110 and the light path converting module 30, and partially intercepts all the first light beams collected by the first lens component 110. At this time, a portion of the first light beam is allowed to pass through the first intercepting member 120 and is irradiated to the first reflecting member 310. And is optically deflected to the image imaging module 40 by the first reflecting component 310.

Referring to fig. 6, the first image 410 is originally an image area formed by all the first light beams. The first image 410 is intercepted once by the first intercepting component 120. Meanwhile, since the image forming module 40 has a size limit, when the light beam reaches the image forming module 40, the light beam outside the photosensitive-surface display area 430 can be intercepted. Therefore, after the first interception component 120 and the image imaging module 40 perform two beam interception, an independent image plane ring is formed. Specifically, after the first light beam of the first region passes through the light path conversion module 30, an image, that is, a second overlapping region 442, is formed on a side of the central axis of the image imaging module 40 close to the second lens module 20. The third intercepting region 451, the fifth intercepting region 461, and the seventh intercepting region 471 are image regions formed by the first light beams intercepted by the image imaging module 40. Thus, it can be seen that the first light beam capable of forming an image on the right side of the central axis is intercepted by the first intercepting member 120, and overlapping with the image area formed by the second light beam is avoided. Meanwhile, the light beams outside the photosensitive surface display region 430 are intercepted by the image imaging module 40. Thus, the photosensitive area of the image imaging module 40 on the left side of the central axis may receive the first light beam entirely, fully utilizing the photosensitive area on the left side of the central axis.

Thus, the entrance pupil side scene of the first lens element 110 is presented to the left of the central axis of the photosensitive surface display area 430, and the central axis left photosensitive area of the image capturing module 40 is fully utilized.

In one embodiment, the second lens module 20 includes a second blocking component 220. The second intercepting component 220 is disposed on the light path of the second light beam, and is configured to intercept the second light beam passing through the second lens component 210 in the second area. After the second light beam of the second region passes through the light path conversion module 30, an image is formed on one side of the central axis of the image imaging module 40, which is close to the first lens module 10.

In this embodiment, the second intercepting component 220 is disposed between the second lens component 210 and the light path conversion module 30, and partially intercepts all the first light beams collected by the second lens component 210. At this time, a portion of the second light beam is allowed to pass through the second intercepting member 220 and is irradiated to the second reflecting member 320. And is optically deflected to the image imaging module 40 by the second reflecting component 320.

Referring to fig. 6, the second image 420 is originally an image area formed by all the second light beams. After the second interception component 220 and the image imaging module 40 perform two-time beam interception, an independent image plane ring is formed. After the second light beam of the second region passes through the light path conversion module 30, an image, that is, a first overlapping region 441, is formed on one side of the central axis of the image imaging module 40, which is close to the first lens module 10. The fourth intercepting region 452, the sixth intercepting region 462 and the eighth intercepting region 472 are image regions formed by the second light beam intercepted by the image imaging module 40. Thus, it can be seen that the second light beam capable of forming an image on the left side of the central axis is intercepted by the second intercepting member 220, and the image area formed by the first light beam is prevented from overlapping. Meanwhile, the light beams outside the photosensitive surface display region 430 are intercepted by the image imaging module 40. Thus, the photosensitive area of the image imaging module 40 on the right side of the central axis may receive the second light beam entirely, completely utilizing the photosensitive area on the right side of the central axis.

Thus, the entrance pupil side scene of the second lens element 210 is shown on the right side of the central axis of the photosensitive surface display area 430, and the photosensitive area on the right side of the central axis of the image capturing module 40 is fully utilized.

Therefore, as can be seen from fig. 6, the photosensitive area of the image imaging module 40 can be fully utilized by the first and

second blocking assemblies

120 and 220, and the utilization rate of the image sensor is improved. Meanwhile, the first light beam and the second light beam are prevented from interfering with each other by the first intercepting component 120 and the second intercepting component 220, so that images are prevented from overlapping, and the integrity of the image displayed in the photosensitive surface display area 430 is ensured.

In one embodiment, the first lens component 110 is a fisheye lens and the second lens component 210 is a fisheye lens. The first intercepting element 120 is disposed between the fisheye lens and the first reflecting element 310. The second intercepting component 220 is disposed between the fisheye lens and the second reflecting component 320. At the moment, the imaging quality of the panoramic camera can be greatly improved by intercepting part of the image of the concerned field of view through the structure of the double-fish glasses head. Also, division area imaging is performed on the use upper division area of the image imaging module 40 (image sensor), and the imaging portion focuses on the field of view to greatly improve the spatial resolution PPD. Thus, compared with a conventional panoramic camera, the imaging device 100 according to the present application can realize a power consumption of 2.6W for 4K @30FPS, and the power consumption is greatly reduced.

In one embodiment, the first interception component 120 and the second interception component 220 in the imaging device 100 according to the present application intercept a portion of optical signals, and can be applied to specific scenes such as driving monitoring and security protection, adaptively sacrifice top and bottom large-field imaging, and receive an annular imaging surface rather than a complete imaging sphere.

In one embodiment, the first and second intercepting

components

120 and 220 are optical devices such as rubber rings.

In one embodiment, the intercepting area of the first intercepting component 120 is 1/3 through 1/2 of the area of the first imaging circle. Wherein the first imaging circle area is an imaging area formed by all the first light beams.

In this embodiment, the area of the first imaging circle is the imaging area formed by all the first light beams, i.e. the area of the first image 410 in fig. 6. The intercepting area of the first intercepting member 120 is the area of the first region in the above embodiments. In this case, the first light beam intercepted by the intercepting area, i.e., the first light beam of the first region, can be understood. Setting the intercepting area of the first intercepting member 120 to 1/3 through 1/2 of the area of the first imaging circle, i.e., setting the intercepting area of the first intercepting member 120 to 1/3 through 1/2 of the area of the first image 410. Thus, by setting the intercepting area of the first intercepting member 120, the first light beam of the first region can be intercepted, and the overlapping with the image region formed by the second light beam can be avoided.

In one embodiment, the intercepting area of the second intercepting component 220 is 1/3 to 1/2 of the area of the second imaging circle. Wherein the second imaging circle area is an imaging area formed by all the second light beams.

In this embodiment, the area of the second imaging circle is the imaging area formed by all the second light beams, i.e. the area of the second image 420 in fig. 6. The intercepting area of the second intercepting member 220 is the area of the second region in the above embodiments. In this case, the second light beam intercepted by the intercepting area, i.e., the second light beam of the second region, can be understood. The intercepting area of the second intercepting member 220 is 1/3 to 1/2 of the area of the second imaging circle, that is, 1/3 to 1/2 of the area of the second image 420 is set as the intercepting area of the second intercepting member 220. Thus, by setting the intercepting area of the second intercepting member 220, the second light beam of the second region can be intercepted, and the overlapping with the image region formed by the first light beam is avoided.

In one embodiment, the image imaging module 40 captures the top and side large field of view optical signals of the first lens assembly 110 with the maximum imaging circle circumscribing the photosensitive area. At this time, the top and the sides of the first lens assembly 110 refer to the spatial position of the application environment where the imaging device 100 is located, and may be suitable for driving monitoring and specific scenes in security protection.

Referring to fig. 7, the table of fig. 7 shows the relevant performance parameters of the combination of the dual-fish glasses head and the first and

second interception components

120 and 220. By comparing the performance parameters with the conventional structure, it can be seen that the imaging apparatus 100 provided by the present application is superior to the conventional structure in terms of spatial resolution, utilization rate, power consumption performance, and the like.

Referring to fig. 8, in an embodiment, the optical path conversion module 30 further includes a middle axis intercepting component 330. The middle axis intercepting component 330 is disposed at a middle axis position of the image imaging module 40. The middle axis intercepting component 330 is used for intercepting the first light beam of the third area after passing through the first reflecting component 310. After the first light beam of the third area passes through the first reflection assembly 310, an image is formed on a side of the central axis of the image imaging module 40 close to the second reflection assembly 320. And the middle axis intercepting component 330 is used for intercepting the second light beam of the fourth area after passing through the second reflecting component 320. After the second light beam of the fourth region passes through the second reflection assembly 320, an image is formed on a side of the central axis of the image imaging module 40 close to the first reflection assembly 310.

In this embodiment, the middle axis intercepting component 330 is disposed at a middle axis position of the image imaging module 40. When all the first light beams reflected by the first reflecting assembly 310 reach the photosensitive area of the image imaging module 40, the first light beams of the third area are intercepted by the middle axis intercepting assembly 330. When all the first light beams reflected by the second reflecting component 320 reach the photosensitive area of the image imaging module 40, the second light beams in the fourth area are intercepted by the middle axis intercepting component 330.

At this time, please refer to fig. 9, and fig. 9 is the same as fig. 6. After the first light beam of the third area passes through the first reflective component 310, an image is formed on a side of the central axis of the image imaging module 40 close to the second reflective component 320, that is, a second overlapping area 442. After the second light beam of the fourth region passes through the second reflection assembly 320, an image is formed on a side of the central axis of the image imaging module 40 close to the first reflection assembly 310, that is, a first overlapping region 441. Other regions may be described with reference to the embodiment of fig. 6.

In this embodiment, the middle axle intercepting component 330 not only intercepts the second light beam capable of forming an image on the left side of the central axis, but also intercepts the first light beam capable of forming an image on the right side of the central axis. Thus, overlapping of the image areas formed by the first and second light beams is avoided by the medial axis intercept assembly 330. Meanwhile, the light beams outside the photosensitive surface display region 430 are intercepted by the image imaging module 40. Thus, the photosensitive area of the image imaging module 40 on the right side of the central axis may receive the second light beam entirely, completely utilizing the photosensitive area on the right side of the central axis. The photosensitive area of image imaging module 40 on the left side of the central axis may receive all of the first light beam, fully utilizing the photosensitive area on the left side of the central axis.

Therefore, the photosensitive area of the image imaging module 40 can be fully utilized by the middle shaft intercepting component 330, and the utilization rate of the image sensor is improved. Meanwhile, the first light beam and the second light beam cannot interfere with each other through the middle shaft intercepting component 330, so that images cannot be overlapped, and the integrity of the image displayed in the photosensitive surface display area 430 is ensured.

And, the central axis intercepting component 330 intercepts optical signals at the bottom of the lens, and the 1/2 photosensitive area of the image imaging module 40 circumscribes the maximum imaging circle, so that optical signals of the top and side large fields of view of the imaging device 100 are intercepted. The top and the side refer to the spatial position of the application environment where the imaging device 100 is located, and are suitable for driving monitoring and specific scenes in security protection. At this point, part of the large field of view imaging is adaptively sacrificed by the imaging device 100, receiving a ring-shaped imaging surface rather than a full imaging sphere.

In one embodiment, the medial axis intercepting assembly 330 has an intercepting area 1/3 through 1/2 of an area of the first image 410 and an area of the second image 420. At this time, the intercepting areas of the medial axis intercepting assembly 330 are the areas of the third region and the fourth region in the above embodiment. The first light beam in the third area and the second light beam in the fourth area are absorbed by the middle axle intercepting component 330, so that the first light beam and the second light beam are prevented from being overlapped to interfere with each other.

In one embodiment, the middle shaft intercepting member 330 may be a lens having light absorbing materials disposed at both sides thereof for absorbing the first light beam of the third area and the second light beam of the fourth area.

In one embodiment, the imaging area of the image sensor may be divided by the imaging apparatus 100. Moreover, the photosensitive area of the image forming module 40 can be fully utilized by the imaging device 100 acquiring part of the first light beam and the second light beam. Therefore, by focusing on a part of the field of view, the imaging of the image imaging module 40 can be realized, and the spatial resolution (or called angular resolution PPD) is greatly improved.

In one embodiment, the optical center of the lens is adjusted to a position from the center of the largest imaging circle to the position 1/4 on the short side of the image sensor under the condition that the optical lens and the image sensor are substantially matched. The optical center of the lens is adjusted, so that verification can be performed by combining geometric rough correction with a test design method when the position of the center of the maximum imaging circle is located at 1/4 of the short side of the image sensor.

Referring to fig. 10, in one embodiment, the table of fig. 10 shows the relevant performance parameters of the combination of the dual fisheye lens and the medial axis intercepting component 330. Through the comparison of performance parameters with the conventional structure, it can be seen that the imaging apparatus 100 provided by the present application is superior to the conventional structure in terms of maximum imaging circle diameter, spatial resolution, utilization rate, power consumption performance, and the like. As can be seen from the table in fig. 10, compared with a conventional panoramic camera, the imaging apparatus 100 according to the present application can achieve a power consumption of 2.6W for 4K @30FPS, and the power consumption is greatly reduced.

In one embodiment, the present application provides an electronic device. The electronic device comprises the imaging apparatus 100 of any of the above embodiments.

In this embodiment, the electronic device may be an electronic device such as a smart phone, a tablet computer, or a monitoring device.

In one embodiment, the electronic device further comprises a controller. The controller is configured to control a lens (a fisheye lens or a wide-angle lens) in the imaging apparatus 100 to perform power-on operation, and the like. The controller includes, but is not limited to, a Field Programmable Gate Array (FPGA), an ARM processor, a micro control unit (MCU, single chip microcomputer), etc.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An imaging device is characterized by comprising a first lens module, a second lens module, a light path conversion module and an image imaging module;

the first lens module is used for collecting at least part of the first light beam and transmitting the first light beam to the light path conversion module;

the second lens module is used for collecting at least part of the second light beam and transmitting the second light beam to the light path conversion module;

the light path conversion module is arranged on the light paths of the first light beam and the second light beam and used for converting the light paths of the first light beam and the second light beam and transmitting the converted light paths to the image imaging module;

the image imaging module is used for receiving the first light beam and the second light beam converted by the light path conversion module and performing photoelectric conversion on the first light beam and the second light beam to form an image.

2. The imaging apparatus according to claim 1, wherein the first lens module includes:

and the first lens component is used for collecting all the first light beams and transmitting the first light beams to the light path conversion module.

3. The imaging apparatus according to claim 2, wherein the first lens module further includes:

the first interception component is arranged on the light path of the first light beam and is used for intercepting the first light beam in the first area after passing through the first lens component;

after the first light beam in the first area passes through the light path conversion module, an image is formed on one side, close to the second lens module, of the central axis of the image imaging module.

4. The imaging apparatus of claim 3, wherein the intercepting area of the first intercepting component is 1/3 to 1/2 of the area of the first imaging circle;

wherein the first imaging circle area is an imaging area formed by all the first light beams.

5. The imaging apparatus according to claim 1, wherein the second lens module includes:

and the second lens component is used for collecting all the second light beams and transmitting the second light beams to the light path conversion module.

6. The imaging apparatus according to claim 5, wherein the second lens module includes:

the second interception component is arranged on the light path of the second light beam and is used for intercepting the second light beam in a second area after passing through the second lens component;

and after the second light beam in the second area passes through the light path conversion module, an image is formed on one side of the central axis of the image imaging module, which is close to the first lens module.

7. The imaging apparatus as claimed in claim 6, wherein the intercepting area of the second intercepting member is 1/3 to 1/2 of the area of the second imaging circle;

wherein the second imaging circle area is an imaging area formed by all the second light beams.

8. The imaging apparatus of claim 1, wherein the optical path conversion module comprises:

the first reflection assembly is arranged on a light path of the first light beam and used for reflecting the first light beam to the image imaging module;

and the second reflection assembly is arranged on the light path of the second light beam and is used for reflecting the second light beam to the image imaging module.

9. The imaging apparatus of claim 8, wherein the optical path conversion module further comprises:

the middle axis intercepting component is arranged at the middle axis position of the image imaging module;

the middle shaft intercepting component is used for intercepting the first light beam in the third area after passing through the first reflecting component; after the first light beam in the third area passes through the first reflection assembly, an image is formed on one side, close to the second reflection assembly, of the central axis of the image imaging module;

the middle shaft intercepting component is used for intercepting the second light beam in a fourth area after passing through the second reflecting component; and after the second light beam in the fourth area passes through the second reflection assembly, an image is formed on one side, close to the first reflection assembly, of the central axis of the image imaging module.

10. An electronic device characterized by comprising the imaging apparatus of any one of claims 1 to 9.