CN111580237A - Electronic device and control method thereof - Google Patents
Electronic device and control method thereof Download PDFInfo
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- CN111580237A CN111580237A CN202010428235.6A CN202010428235A CN111580237A CN 111580237 A CN111580237 A CN 111580237A CN 202010428235 A CN202010428235 A CN 202010428235A CN 111580237 A CN111580237 A CN 111580237A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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Abstract
An electronic device and a control method thereof are disclosed. The electronic equipment comprises a first imaging module and a second imaging module, wherein the first imaging module comprises a first zoom lens, the first zoom lens comprises a plurality of first lens groups, the optical axis direction of the first zoom lens is kept unchanged, and the optical axis direction of the first zoom lens is the thickness direction of the electronic equipment; the second imaging module comprises a second zoom lens, the second zoom lens comprises a refraction element and a plurality of second lens groups, the refraction element is used for changing the optical axis direction of the second zoom lens from a first optical axis direction to a second optical axis direction, the first optical axis direction is the thickness direction of the electronic equipment, and the first optical axis direction is different from the second optical axis direction. The electronic equipment and the control method thereof can simultaneously realize the optical zooming of a small focal length and the optical zooming of a large focal length by combining the first imaging module and the second imaging module, thereby shooting a high-definition image.
Description
Technical Field
The present disclosure relates to imaging technologies, and in particular, to an electronic device and a control method thereof.
Background
In the related art, in order to achieve zooming, it is common to capture images using a plurality of cameras with different focal lengths in cooperation, for example, a wide camera, a main camera, and a telephoto camera. When the zoom range is between the focal length of the wide-angle camera and the focal length of the main camera, or between the focal length of the main camera and the focal length of the telephoto camera, zooming is usually achieved by means of digital zooming, and thus, the quality of an image obtained by shooting is low.
Disclosure of Invention
The embodiment of the application provides electronic equipment and a control method thereof.
The electronic device of the embodiment of the application comprises a first imaging module and a second imaging module, wherein the first imaging module comprises a first zoom lens, the first zoom lens comprises a plurality of first lens groups, the optical axis direction of the first zoom lens is kept unchanged, the optical axis direction of the first zoom lens is the thickness direction of the electronic device, and at least one lens group in the plurality of first lens groups can move in the optical axis direction of the first zoom lens to enable the first focal length of the first zoom lens to be between the first minimum focal length and the first maximum focal length; the second imaging module comprises a second zoom lens, the second zoom lens comprises a refraction element and a plurality of second lens groups, the refraction element is used for changing the optical axis direction of the second zoom lens from a first optical axis direction to a second optical axis direction, the first optical axis direction is the thickness direction of the electronic equipment, the first optical axis direction is different from the second optical axis direction, and the second zoom lens is a plurality of at least one lens group in the second lens groups can move in the second optical axis direction to enable the second focal length of the second zoom lens to be between a second minimum focal length and a second maximum focal length, wherein the difference value between the second minimum focal length and the first maximum focal length is smaller than a preset focal length.
The control method of the embodiment of the application can be used for electronic equipment, the electronic equipment comprises a first imaging module and a second imaging module, the first imaging module comprises a first zoom lens, the first zoom lens comprises a plurality of first lens groups, the optical axis direction of the first zoom lens is kept unchanged, and the optical axis direction of the first zoom lens is the thickness direction of the electronic equipment; the second imaging module comprises a second zoom lens, the second zoom lens comprises a refraction element and a plurality of second lens groups, the refraction element is used for changing the optical axis direction of the second zoom lens from a first optical axis direction to a second optical axis direction, the first optical axis direction is the thickness direction of the electronic equipment, and the first optical axis direction is different from the second optical axis direction. The control method comprises the following steps: controlling at least one lens group of the plurality of first lens groups to move in an optical axis direction of the first zoom lens such that a first focal length of the first zoom lens is between a first minimum focal length and a first maximum focal length; and controlling at least one lens group in the plurality of second lens groups to move in the second optical axis direction so that a second focal length of the second zoom lens is between a second minimum focal length and a second maximum focal length, wherein a difference between the second minimum focal length and the first maximum focal length is smaller than a preset focal length.
In the electronic device and the control method thereof according to the embodiment of the application, since the optical axis direction of the first imaging module is kept unchanged, when the optical axis direction of the first imaging module is the thickness direction of the electronic device, the lens of the first imaging module can be made larger without increasing the thickness of the electronic device, so that the field angle of the first imaging module is larger, and optical zooming can be realized in a zooming range with a small focal length to shoot a high-quality image with a large field angle. The optical axis direction of the second imaging module is changed from the first optical axis direction to the second optical axis direction, so that when the first optical axis direction of the second imaging module is the thickness direction of the electronic equipment, the second optical axis direction of the second imaging module is different from the thickness direction of the electronic equipment, and the increase of the length of the second lens group does not result in the increase of the thickness of the electronic equipment. The electronic equipment of this application embodiment realizes the optics of little focus and the optics of big focus and zooms simultaneously through the combination of first formation of image module and second formation of image module to can shoot high definition image.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic plan view of an electronic device according to some embodiments of the present application.
Fig. 2 to 4 are schematic structural views of a first imaging module according to some embodiments of the present disclosure.
Fig. 5-7 are schematic structural views of a second imaging module according to some embodiments of the present disclosure.
Fig. 8 to 13 are schematic flow charts of a control method according to some embodiments of the present disclosure.
FIG. 14 is a schematic plan view of an electronic device according to some embodiments of the present application.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
Referring to fig. 1, fig. 2 and fig. 6 together, an electronic device 1000 according to an embodiment of the present disclosure includes a first imaging module 100 and a second imaging module 200. The first imaging module 100 includes a first zoom lens 10, and the first zoom lens 10 includes a plurality of first lens groups. The optical axis direction of the first zoom lens 10 remains unchanged, the optical axis direction of the first zoom lens 10 is the thickness direction of the electronic apparatus 1000, and at least one lens group of the plurality of first lens groups is movable in the optical axis direction of the first zoom lens 10 so that the first focal length of the first zoom lens 10 is between the first minimum focal length and the first maximum focal length. The second imaging module 200 includes a second zoom lens 20, the second zoom lens 20 includes a refractive element 21 and a plurality of second lens groups, the refractive element 21 is configured to change an optical axis direction of the second zoom lens 20 from a first optical axis direction to a second optical axis direction, the first optical axis direction is a thickness direction of the electronic device 1000, the first optical axis direction is different from the second optical axis direction, at least one lens group of the plurality of second lens groups is movable in the second optical axis direction so that a second focal length of the second zoom lens 20 is between a second minimum focal length and a second maximum focal length, wherein a difference between the second minimum focal length and the first maximum focal length is smaller than the preset focal length.
In the electronic device 1000 according to the embodiment of the application, since the optical axis direction of the first imaging module 100 remains unchanged, when the optical axis direction of the first imaging module 100 is the thickness direction of the electronic device 1000, the lens of the first imaging module 100 can be made larger without increasing the thickness of the electronic device 1000, so that the field angle of the first imaging module 100 is larger, and optical zooming can be realized in a zoom range with a small focal length to capture a high-quality image with a large field angle. Since the optical axis direction of the second imaging module 200 is changed from the first optical axis direction to the second optical axis direction, when the first optical axis direction of the second imaging module 200 is the thickness direction of the electronic device 1000, the second optical axis direction of the second imaging module 200 is different from the thickness direction of the electronic device 1000, and the increase in the length of the second lens group does not result in the increase in the thickness of the electronic device 1000, so that the focal length of the second zoom lens 20 can be designed to be relatively large and the zoom range is relatively wide, and optical zooming can be implemented in the zoom range with a large focal length to photograph a high-quality image corresponding to a long-distance scene. The electronic device 1000 according to the embodiment of the present application can simultaneously realize optical zooming of a small focal length and optical zooming of a large focal length by combining the first imaging module 100 and the second imaging module 200, thereby capturing a high-definition image.
The difference between the second minimum focal length and the first maximum focal length is smaller than the preset focal length, which can facilitate the continuous variation of the focal length between the first imaging module 100 and the second imaging module 200.
In some embodiments, the preset focal length is a first minimum focal length. The first minimum focal length may be a focal length corresponding to 1 time zooming of the electronic device 1000, and when a difference between the second minimum focal length and the first maximum focal length is smaller than the first minimum focal length, it may be considered that the difference between the second minimum focal length and the first maximum focal length is smaller than 1 time focal length, so that continuous multiple zooming of the electronic device 1000 is facilitated, for example, 2 times zooming, 3 times zooming, 4 times zooming, and the like may be achieved.
In some embodiments, the preset focal length is 0. When the difference between the second minimum focal length and the first maximum focal length is less than or equal to 0, the electronic device 1000 may implement zooming of any focal length within the range of focal lengths of the first minimum focal length and the second maximum focal length.
In some embodiments, the first zoom lens 10 may include one or more lenses, the one or more lenses are sequentially arranged on the optical axis a1 of the first zoom lens 10, and the extending direction of the optical axis a1 of the first zoom lens 10 is the optical axis direction of the first zoom lens 10. The first zoom lens 10 may include four lenses, five lenses, six lenses, seven lenses, eight lenses, and so on, and in the present embodiment, six lenses are included, and the first zoom lens first lens 1022, the first zoom lens second lens 1024, the first zoom lens third lens 1042, the first zoom lens fourth lens 1044, the first zoom lens fifth lens 1062, and the first zoom lens sixth lens 1064 are sequentially arranged in an object side to image side direction of the first zoom lens 10. The second zoom lens 20 may include one or more lenses, the one or more lenses are arranged in the second optical axis direction of the second imaging module 200, the second zoom lens 20 may include four lenses, five lenses, six lenses, seven lenses, eight lenses, and so on, in this embodiment, the seven lenses are included, and the second zoom lens first lens 2022, the second zoom lens second lens 2024, the second zoom lens third lens 2042, the second zoom lens fourth lens 2044, the second zoom lens fifth lens 2046, the second zoom lens sixth lens 2062, and the second zoom lens seventh lens 2064 are arranged in order from the object side to the image side of the second zoom lens 20. The lenses included in the first zoom lens 10 and the second zoom lens 20 may all be glass lenses or all plastic lenses, or may be partly glass lenses and partly plastic lenses.
Referring to fig. 2, the first imaging module 100 includes a first photosensitive element 18 and a plurality of first lens groups. The first photosensitive element 18 is used for converting an optical signal passing through the first zoom lens 10 into an electrical signal; the position of the first photosensitive element 18 on the optical axis a1 of the first zoom lens 10 is relatively fixed. The plurality of first lens groups may include a first moving lens group 102, a second moving lens group 104, and a third moving lens group 106. The first moving lens group 102, the second moving lens group 104, the third moving lens group 106, and the first photosensitive element 18 are arranged in this order in the object-side to image-side direction of the first zoom lens 10. When the first zoom lens 10 is switched from the first minimum focal length to the first maximum focal length, the position of the first photosensitive element 18 on the optical axis a1 of the first zoom lens 10 is relatively fixed, and the first moving lens group 102, the second moving lens group 104, and the third moving lens group 106 are moved toward the object side of the first zoom lens 10 along the optical axis a1 of the first zoom lens 10. Optical zooming of first zoom lens 10 can be achieved by movement of first moving lens group 102, second moving lens group 104, and third moving lens group 106. Since the optical axis direction of the first imaging module 100 is the thickness direction of the electronic device 1000, the lens diameter size can be made larger without increasing the thickness of the electronic device 1000, and thus, the field angle of the first imaging module 100 is larger, and zooming can be realized within the zooming range of a small focal length to capture a high-quality image with a large field angle.
In some embodiments, the first imaging module 100 includes a first stop 101, and the first stop 101 may be disposed on the first moving lens group 102, and in particular, the first stop 101 may be disposed in an object side direction of the first moving lens group 102 toward the first imaging module 100. When the first zoom lens 10 is switched from the first minimum focal length to the first maximum focal length, the first stop 101 moves along the optical axis a1 together with the first moving lens group 102.
In some embodiments, the first imaging module 100 includes a first filter 17, and the first filter 17 is disposed between the first zoom lens 10 and the first photosensitive element 18. Specifically, the first filter 17 may be disposed between the third moving lens group 106 and the first photosensitive element 18. The first filter 17 is held stationary on the optical axis a1 of the first zoom lens 10. The first filter 17 may be an IR pass filter, an IR cut filter, or the like, and different types of first filters 17 may be used according to actual use. For example: the first filter 17 is an IR pass filter, only infrared light is allowed to pass through the first filter 17 to the first photosensitive element 18, and the first imaging module 100 acquires an infrared image which can be used for iris recognition, or acquires depth information as a structured light image for structured light distance measurement, or performs 3D modeling together with a visible light image, or binocular distance measurement, and the like.
Referring to fig. 3, the first zoom lens 10 further includes a first casing 12, a second casing 14 and a third casing 16. The first housing 12 is used for accommodating the first movable lens group 102, the second housing 14 is used for accommodating the second movable lens group 104 and the first housing 12, and the third housing 16 is used for accommodating the third movable lens group 106 and the second housing 14; a first moving assembly 122 is disposed in the first housing 12, the first moving assembly 122 is used for moving the first moving lens group 102, a second moving assembly 124 is disposed in the second housing 14, the second moving assembly 124 is used for moving the first housing 12, a third moving assembly 126 is disposed in the third housing 16, and the third moving assembly 126 is used for moving the third lens group 106 and the second housing 16. In this way, with the structure in which the housings are nested into each other (the first housing 12 is housed in the second housing 14, and the second housing 14 is housed in the third housing 16), it is possible to facilitate the extension and retraction of the first zoom lens 10, and to facilitate the movement of the first lens group 102, the second lens group 104, and the third lens group 106 during zooming. In addition, the nested structure of the shells can make the sizes of the first moving assembly 122, the second moving assembly 124 and the third moving assembly 126 smaller, and can improve the reliability of the first moving assembly 122, the second moving assembly 124 and the third moving assembly 126 and avoid damage. In some embodiments, the movement assembly may include a track, slide, ball, mounting slot, drive, etc., and may be disposed within the housing by gluing, screwing, clipping, etc.
In some embodiments, the diameter of the lens in the third moving lens group 106 is larger than the diameter of the lens in the second moving lens group 104, and the diameter of the lens in the second moving lens group 104 is larger than the diameter of the lens in the first moving lens group 102, such that disposing the third moving lens group 106 in the third housing 16, the second moving lens group 104 in the second housing 14, and the first moving lens group 102 in the first housing 12 is facilitated. Of course, in other embodiments, the lens diameters in the first moving lens group 102, the second moving lens group 104 and the third moving lens group 106 may also be substantially equal, and are not particularly limited herein.
Referring to fig. 1 and 2, an electronic apparatus 1000 according to an embodiment of the present disclosure includes a first imaging module 100 and a housing 300, where the first imaging module 100 includes a first zoom lens 10 and a first photosensitive element 18, and a through hole 310 is formed at an end of the housing 300 away from the first photosensitive element 18. When the first zoom lens 10 is switched from the first minimum focal length to the first maximum focal length, the first imaging module 100 passes through the through hole 310 such that a portion of the first imaging module 100 is exposed outside the housing 300. Referring to fig. 4, when the first imaging module 100 has the first minimum focal length, the first imaging module 100 may be completely accommodated in the housing 300, or may be partially accommodated in the housing 300, and another portion of the first imaging module is still exposed outside the housing 300. In the present embodiment, when the first imaging module 100 has the first minimum focal length, the first imaging module 100 is entirely accommodated in the housing 300. When the first imaging module 100 is at the first maximum focal length, the first imaging module 100 may be partially exposed outside the housing 300, and in one embodiment, a portion of the first shell 12 and a portion of the second shell 14 may be exposed outside the housing 300. When the moving assembly includes a slide rail, the structure in which the housings are nested into each other can make the slide rail in each housing shorter, thereby enhancing the reliability of the slide rail and preventing the portion of the first imaging module 100 exposed outside the housing 300 from falling.
In the first imaging module 100 according to the embodiment of the present application, the first zoom lens 10 moves along the optical axis a1 toward the object side direction (the direction away from the photosensitive element 18) or the image side direction (the direction close to the photosensitive element 18) of the lens module 100 to achieve optical zooming, and in addition, the optical axis direction of the first imaging module 10 is the thickness direction of the electronic device 1000, so that the lenses of the first imaging module can be made relatively large without increasing the thickness of the electronic device.
Referring to fig. 5, the second imaging module 200 includes a refractive element 21 and a plurality of second lens groups. The dioptric element 21 is used to change the optical axis direction of the second zoom lens 20 from a first optical axis direction, which is the thickness direction of the electronic apparatus 1000, to a second optical axis direction, which is different from the first optical axis direction. The first optical axis direction of the second zoom lens 20 is the extending direction of the first optical axis a2, and the second optical axis direction of the second zoom lens 20 is the extending direction of the second optical axis a 3. The plurality of second lens groups includes a fourth moving lens group 202, a fifth moving lens group 204, and a sixth moving lens group 206. The fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206 are arranged in order in the object-side to image-side direction of the first zoom lens 10. The second imaging module 200 includes a second photosensitive element 28, and the second photosensitive element 28 is used for converting the optical signal passing through the second zoom lens 20 into an electrical signal; the position of the second photosensitive element in the second optical axis direction is relatively fixed. The fourth moving lens group 202, the fifth moving lens group 204, the sixth moving lens group 206, and the second photosensitive element 28 are arranged in this order in the object-side to image-side direction of the second zoom lens 20. When the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the position of the second photosensitive element 28 in the second optical axis direction is relatively fixed, and at least one lens group of the fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206 moves along the second optical axis a3 of the second zoom lens 20. Since the position of the second photosensitive element 28 in the second optical axis direction is relatively fixed, the second photosensitive element 28 is prevented from tilting or other displacement, and thus deformation of the image captured by the second photosensitive element 28 can be reduced or avoided.
In some embodiments, the refractive element 21 may be a prism, a mirror, or the like, for example: the refraction element 21 is a prism, the prism changes the optical axis direction of the second zoom lens 20 from the first optical axis direction to the second optical axis direction, the first optical axis direction of the second imaging module 200 is the thickness direction of the electronic device 1000, the second optical axis direction of the second imaging module 200 is different from the thickness direction of the electronic device 1000, and the increase in the length of the second lens group does not result in the increase in the thickness of the electronic device 1000.
In some embodiments, when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the positions of the fifth moving lens group 204 and the second photosensitive element 28 in the second optical axis direction are relatively fixed, and the fourth moving lens group 202 and the sixth moving lens group 206 move along the second optical axis a3 of the second zoom lens 20 toward the image side of the second zoom lens 20. The second imaging module 200 can change the focal length of the second imaging module 200 by moving the fourth moving lens group 202 and the sixth moving lens group 206 in the second lens group, so that continuous optical zooming can be realized within a large-focal-length zooming range to shoot a high-quality image corresponding to a long-distance scene, the increase of the thickness of the electronic device 1000 is avoided, and the light and thin requirements of a user on the electronic device 1000 are met.
In some embodiments, the fourth moving lens group 202 and the sixth moving lens group 206 in the second lens group 20 may be synchronously moved along the second optical axis a3 of the second zoom lens 20 toward the image side of the second zoom lens 20. Synchronous movement can be understood as: the relative spacing between the fourth moving lens group 202 and the sixth moving lens group 206 is not changed during the movement, and the moving direction and the moving amount of the fourth moving lens group 202 and the sixth moving lens group 206 are the same. Since the fourth moving lens group 202 and the sixth moving lens group 206 are moved synchronously, the fourth moving lens group 202 and the sixth moving lens group 206 can be controlled simultaneously by one controller, and the control logic is simpler. In the process of simultaneous movement, the moving direction of the fourth moving lens group 202 is the same as the moving direction of the sixth moving lens group 206, and the moving amount of the fourth moving lens group 202 may be the same as or different from the moving amount of the sixth moving lens group 206.
In some embodiments, the position of the second photosensitive element 28 in the second optical axis direction is relatively fixed, and the fourth moving lens group 202 and the sixth moving lens group 206 move along the second optical axis a3 of the second zoom lens 20 in sequence. The fourth moving lens group 202 can move along the second optical axis a3 of the second zoom lens 20 first, and then the sixth moving lens group 206 also moves along the second optical axis a3 of the second zoom lens 20, and because the time for moving the two lens groups is different, no interference phenomenon exists between the fourth moving lens group 202 and the sixth moving lens group 206, and the zooming precision of the second zoom lens 20 is higher.
In other embodiments, at least one of the fourth moving lens group 202, the fifth moving lens group 204 and the sixth moving lens group 206 moving along the second optical axis a3 of the second zoom lens 20 may be: moving only the fourth moving lens group 202; or only the fifth moving lens group 204; or only the sixth moving lens group 206; or moving the fourth moving lens group 202 and the fifth moving lens group 204; or moving the fifth moving lens group 204 and the sixth moving lens group 206; or the fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206.
In some embodiments, the second imaging module 200 includes a second photosensitive element 28. The fourth moving lens group 202, the fifth moving lens group 204, the sixth moving lens group 206, and the second photosensitive element 28 are arranged in order in the object-side to image-side direction of the second zoom lens 20, and when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the second photosensitive element 28 moves along the second optical axis a3 of the second zoom lens 20, and at least one of the fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206 moves along the second optical axis a3 of the second zoom lens 20.
In some embodiments, when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the positions of the fourth moving lens group 202 and the sixth moving lens group 206 in the second optical axis direction are relatively fixed, and the fifth moving lens group 204 and the second photosensitive element 28 are moved toward the image side of the second zoom lens 20 in the second optical axis direction of the second zoom lens 20. The second photosensitive element 28 can obtain the definition of the image, and the second photosensitive element 28 realizes the automatic focusing by determining the moving direction on the second optical axis a3 and the moving amount on the second optical axis a3 according to the definition of the image, so that a high-definition image can be shot.
In other embodiments, the second photosensitive element 28 moves along the second optical axis a3 of the second zoom lens 20, and at least one of the fourth moving lens group 202, the fifth moving lens group 204 and the sixth moving lens group 206 moves along the second optical axis a3 of the second zoom lens 20, and it may also be: moving the second photosensitive element 28 and the fourth moving lens group 202; or moving the second photosensitive element 28 and the sixth moving lens group 206; or the second photosensitive element 28, the fourth moving lens group 202, and the fifth moving lens group 204; or the second photosensitive element 28, the fourth moving lens group 202, and the sixth moving lens group 206; or the second photosensitive element 28, the fifth moving lens group 204, and the sixth moving lens group 206; or the second photosensitive element 28, the fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206.
In some embodiments, the second imaging module 200 may further include a second stop 201, and the second stop 201 may be disposed on the fourth moving lens group 202, and specifically, the second stop 201 may be disposed on a side of the fourth moving lens group 202 facing the refractive element 21. When the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the second stop 201 and the fourth moving lens group 202 may be held fixed together in the second optical axis direction, or the second stop 201 and the fourth moving lens group 202 may be moved together in the second optical axis direction according to a specific embodiment. The second diaphragm 201 may be an aperture diaphragm, a field diaphragm, or the like, and different types of second diaphragms 201 may be used according to actual use. For example: if the second diaphragm 201 is an aperture diaphragm, the amount of light passing through can be limited; if the second aperture 201 is a field aperture, the size of the field may be limited.
In some embodiments, the second imaging module 200 includes a second filter 27, the second filter 27 is disposed between the second photosensitive element 28 and the sixth moving lens group 206, and the second filter 27 moves along with the second photosensitive element 28 when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length. The second filter 27 may be an IR pass filter, an IR cut filter, or the like, and different types of the first filter 27 may be used according to actual use. For example: the second filter 27 is an IR cut-off filter, and the infrared light is not allowed to pass through the second filter 27, but the visible light is allowed to pass through the second filter 27 and reach the second photosensitive element 28, and the second imaging module 200 acquires a visible light image, which can be used as a general shooting requirement. In the object side to image side direction of the second zoom lens 20, the refractive element 21, the fourth moving lens group 202 (together with the second stop 201), the fifth moving lens group 204 and the sixth moving lens group 206, the second filter 27, and the second photosensitive element 28 are arranged in this order in the object side to image side direction of the second zoom lens 20.
Referring to fig. 6 and 7, the second imaging module 200 includes a housing 30, a fourth housing 22, a fifth housing 24, and a sixth housing 26. The fourth housing 22, the fifth housing 24 and the sixth housing 26 are all disposed in the housing space of the shell 30. A moving assembly is provided within the shell 30, which may be provided with one or more of, for example: referring to fig. 6, a fourth moving assembly 222 and a fifth moving assembly 224 are disposed in the shell 30; the fourth moving assembly 222 is used to move the fifth casing 24, the fifth moving assembly 224 is used to move the second light sensing element 28, the fourth casing 22 and the sixth casing 26 are fixed inside the casing 30, when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the fourth moving assembly 222 moves the fifth casing 24 along the second optical axis a3 of the second zoom lens 20 towards the image side of the second zoom lens 20, and the fifth moving assembly 224 moves the second light sensing element 28 along the second optical axis a3 of the second zoom lens 20 towards the image side of the second zoom lens 20.
Referring to fig. 1 and 8 together, the present application discloses a control method for controlling an electronic device 1000, where the electronic device 1000 includes a first imaging module 100 and a second imaging module 200. The first imaging module 100 includes a first zoom lens 10, the first zoom lens 10 includes a plurality of first lens groups, an optical axis direction of the first zoom lens 10 remains unchanged, and the optical axis direction of the first zoom lens 10 is a thickness direction of the electronic apparatus 1000; the second imaging module 200 includes a second zoom lens 20, the second zoom lens 20 includes a refractive element 21 and a plurality of second lens groups, the refractive element 21 is used for changing the optical axis direction of the second zoom lens 20 from a first optical axis direction to a second optical axis direction, the first optical axis direction is a thickness direction of the electronic device 1000, and the first optical axis direction is different from the second optical axis direction. The control method comprises the following steps:
01: controlling at least one lens group of the plurality of first lens groups to be movable in an optical axis direction of the first zoom lens such that a first focal length of the first zoom lens 10 is between a first minimum focal length and a first maximum focal length;
02: controlling at least one lens group of the plurality of second lens groups to be movable in the second optical axis direction such that the second focal length of the second zoom lens 20 is between the second minimum focal length and the second maximum focal length, wherein a difference between the second minimum focal length and the first maximum focal length is smaller than the preset focal length.
In some embodiments, the first imaging module 100 further includes a first photosensitive element 18, the plurality of first lens groups include a first moving lens group 102, a second moving lens group 104, and a third moving lens group 106, the first moving lens group 102, the second moving lens group 104, the third moving lens group 106, and the first photosensitive element 18 are arranged in sequence in an object-to-image direction of the first zoom lens 10, and a position of the first photosensitive element 18 on an optical axis a1 of the first zoom lens 10 is relatively fixed, please refer to fig. 9, step 01 includes:
012: when the first zoom lens 10 is switched from the first minimum focal length to the first maximum focal length, the first moving lens 102, the second moving lens group 104, and the third moving lens group 106 are controlled to move toward the object side of the first zoom lens 10 along the optical axis a1 of the first zoom lens 10.
In some embodiments, the second imaging module 200 further includes a second photosensitive element 28, the plurality of second lens groups includes a fourth moving lens group 202, a fifth moving lens group 204, and a sixth moving lens group 206, the fourth moving lens group 202, the fifth moving lens group 204, the sixth moving lens group 206, and the second photosensitive element 28 are arranged in sequence in an object-to-image direction of the second zoom lens 20, and a position of the second photosensitive element 28 in the second optical axis direction is relatively fixed, please refer to fig. 10, step 02 includes:
022: when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, at least one of the fourth moving lens group 202, the fifth moving lens group 204, and the sixth moving lens group 206 is controlled to move along the second optical axis a3 of the second zoom lens 20.
In some embodiments, the positions of the fifth moving lens group 204 and the second photosensitive element 28 in the second optical axis direction are relatively fixed, please refer to fig. 11, and step 022 further includes:
0222: when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the fourth moving lens group 202 and the sixth moving lens group 206 are controlled to move along the second optical axis a3 of the second zoom lens 20 toward the image side of the second zoom lens 20.
In some embodiments, the second imaging module 200 further includes a second photosensitive element 28, the plurality of second lens groups includes a fourth moving lens group 202, a fifth moving lens group 204, and a sixth moving lens group 206, and the fourth moving lens group 202, the fifth moving lens group 204, the sixth moving lens group 206, and the second photosensitive element 28 are arranged in sequence from the object side to the image side of the second zoom lens 20, please refer to fig. 12, step 02 includes:
024: when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the second photosensitive element 28 is controlled to move along the second optical axis a3 of the second zoom lens 20, and at least one of the fourth moving lens group 202, the fifth moving lens group 204 and the sixth moving lens group 206 is controlled to move along the second optical axis a3 of the second zoom lens 20.
In some embodiments, the positions of the fourth moving lens group 202 and the sixth moving lens group 206 in the second optical axis direction are relatively fixed, please refer to fig. 13, and step 024 further includes:
0242: when the second zoom lens 20 is switched from the second minimum focal length to the second maximum focal length, the fifth moving lens group 204 and the second light sensing element 28 are controlled to move along the second optical axis a3 of the second zoom lens 20 toward the image side of the second zoom lens 20.
Referring to fig. 1, fig. 2 and fig. 5, an electronic device 1000 according to an embodiment of the present disclosure includes a first imaging module 100 and a second imaging module 200 according to any of the above embodiments. The electronic device 1000 includes a housing 300, a through hole 310 is formed at an end of the housing 300 away from the first photosensitive element 18, the first imaging module 100 and the second imaging module 200 are disposed on the housing 300, and the housing 300 can effectively protect the first imaging module 100 and the second imaging module 200.
The electronic device 1000 may be a mobile phone, a notebook computer, a smart watch, etc., and the electronic device 1000 according to the embodiment is described as an example of a mobile phone. Referring to fig. 14, the first imaging module 100 and the second imaging module 200 may be disposed on the front surface of the mobile phone, for example, on the surface where the display screen 400 is located, to serve as a front camera. Referring to fig. 1, the first imaging module 100 and the second imaging module 200 may also be disposed on the back of the mobile phone, for example, on the surface of the mobile phone housing 300 away from the display screen 400 to serve as a rear camera.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. An electronic device, characterized in that the electronic device comprises:
a first imaging module including a first zoom lens, the first zoom lens including a plurality of first lens groups, an optical axis direction of the first zoom lens being constant, the optical axis direction of the first zoom lens being a thickness direction of the electronic apparatus, at least one lens group of the plurality of first lens groups being movable in the optical axis direction of the first zoom lens such that a first focal length of the first zoom lens is between a first minimum focal length and a first maximum focal length;
the second imaging module comprises a second zoom lens, the second zoom lens comprises a refraction element and a plurality of second lens groups, the refraction element is used for changing the optical axis direction of the second zoom lens from a first optical axis direction to a second optical axis direction, the first optical axis direction is the thickness direction of the electronic equipment, the first optical axis direction is different from the second optical axis direction, and at least one lens group in the second lens groups can move in the second optical axis direction to enable the second focal length of the second zoom lens to be between a second minimum focal length and a second maximum focal length, wherein the difference value between the second minimum focal length and the first maximum focal length is smaller than a preset focal length.
2. The electronic device of claim 1, wherein the preset focal length is the first minimum focal length or 0.
3. The electronic device according to claim 1, wherein the first imaging module further comprises a first photosensitive element, the plurality of first lens groups comprise a first moving lens group, a second moving lens group, and a third moving lens group, the first moving lens group, the second moving lens group, the third moving lens group, and the first photosensitive element are arranged in this order in an object-to-image direction of the first zoom lens, a position of the first photosensitive element on an optical axis of the first zoom lens is relatively fixed when the first zoom lens is switched from the first minimum focal length to the first maximum focal length, and the first moving lens group, the second moving lens group, and the third moving lens group are moved toward the object side of the first zoom lens along the optical axis of the first zoom lens.
4. The electronic apparatus according to claim 3, wherein the first zoom lens further comprises a first housing for housing the first moving lens group, a second housing for housing the second moving lens group and the first housing, and a third housing for housing the third moving lens group and the second housing; the lens driving device comprises a first shell, a second shell, a first moving assembly, a second moving assembly, a third moving assembly and a third moving assembly, wherein the first moving assembly is arranged in the first shell and used for moving the first moving lens group, the second moving assembly is arranged in the second shell and used for moving the first shell, the third moving assembly is arranged in the third shell and used for moving the third lens group and the second shell.
5. The electronic device according to claim 3 or 4, further comprising a housing, wherein a through hole is opened at an end of the housing away from the first photosensitive element, and when the first zoom lens is switched from the first minimum focal length to the first maximum focal length, the first imaging module passes through the through hole so that a part of the first imaging module is exposed outside the housing.
6. The electronic apparatus according to claim 1, wherein the second imaging module further comprises a second light-sensing element, and wherein the plurality of second lens groups comprises a fourth moving lens group, a fifth moving lens group, and a sixth moving lens group, and the fourth moving lens group, the fifth moving lens group, the sixth moving lens group, and the second light-sensing element are arranged in this order in an object-to-image direction of the second zoom lens, and a position of the second light-sensing element in the second optical axis direction is relatively fixed when the second zoom lens is switched from the second minimum focal length to the second maximum focal length, and at least one of the fourth moving lens group, the fifth moving lens group, and the sixth moving lens group moves along an optical axis of the second zoom lens.
7. The electronic apparatus according to claim 6, wherein when the second zoom lens is switched from the second minimum focal length to the second maximum focal length, positions of the fifth moving lens group and the second light-sensing element in the second optical axis direction are relatively fixed, and the fourth moving lens group and the sixth moving lens group move toward an image side of the second zoom lens along an optical axis of the second zoom lens.
8. The electronic device according to claim 1, wherein the second imaging module further comprises a second light-sensing element, and wherein the plurality of second lens groups comprises a fourth moving lens group, a fifth moving lens group, and a sixth moving lens group, and wherein the fourth moving lens group, the fifth moving lens group, the sixth moving lens group, and the second light-sensing element are arranged in this order in an object-to-image direction of the second zoom lens, and wherein the second light-sensing element moves along an optical axis of the second zoom lens when the second zoom lens is switched from the second minimum focal length to the second maximum focal length, and wherein at least one of the fourth moving lens group, the fifth moving lens group, and the sixth moving lens group moves along the optical axis of the second zoom lens.
9. The electronic apparatus according to claim 8, wherein when the second zoom lens is switched from the second minimum focal length to the second maximum focal length, positions of the fourth moving lens group and the sixth moving lens group in the second optical axis direction are relatively fixed, and the fifth moving lens group and the second photosensitive element are moved toward an image side of the second zoom lens along an optical axis of the second zoom lens.
10. A control method of an electronic device is characterized in that the electronic device comprises a first imaging module and a second imaging module, the first imaging module comprises a first zoom lens, the first zoom lens comprises a plurality of first lens groups, the optical axis direction of the first zoom lens is kept unchanged, and the optical axis direction of the first zoom lens is the thickness direction of the electronic device; the second imaging module comprises a second zoom lens and a plurality of second lens groups, wherein the second zoom lens comprises a refraction element and a plurality of second lens groups, the refraction element is used for changing the optical axis direction of the second zoom lens from a first optical axis direction to a second optical axis direction, the first optical axis direction is the thickness direction of the electronic equipment, and the first optical axis direction is different from the second optical axis direction; the control method comprises the following steps:
controlling at least one lens group of the plurality of first lens groups to move in an optical axis direction of the first zoom lens such that a first focal length of the first zoom lens is between a first minimum focal length and a first maximum focal length;
and controlling at least one lens group in the plurality of second lens groups to move in the second optical axis direction so that a second focal length of the second zoom lens is between a second minimum focal length and a second maximum focal length, wherein a difference between the second minimum focal length and the first maximum focal length is smaller than a preset focal length.
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| CN112584018A (en) * | 2020-12-08 | 2021-03-30 | 维沃移动通信有限公司 | Electronic equipment |
| CN112637452A (en) * | 2020-12-07 | 2021-04-09 | Oppo广东移动通信有限公司 | Camera module and electronic device |
| CN112684563A (en) * | 2020-12-28 | 2021-04-20 | 维沃移动通信有限公司 | Electronic device |
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| CN114125198A (en) * | 2020-09-01 | 2022-03-01 | 宁波舜宇光电信息有限公司 | Periscopic camera module and electronic equipment |
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