CN107493409B - Optical zooming camera module and mobile terminal - Google Patents
Optical zooming camera module and mobile terminal Download PDFInfo
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- CN107493409B CN107493409B CN201710584761.XA CN201710584761A CN107493409B CN 107493409 B CN107493409 B CN 107493409B CN 201710584761 A CN201710584761 A CN 201710584761A CN 107493409 B CN107493409 B CN 107493409B
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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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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
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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
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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
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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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Abstract
The embodiment of the application discloses module and mobile terminal of making a video recording that optics zoomed, this optics zoom the module of making a video recording include: the cavity is provided with a light inlet hole arranged on the cavity, and a light inlet lens group, a zoom lens group, an imaging lens group and a photosensitive element which are positioned in the cavity; the zoom lens group comprises a plurality of light conversion lenses, and the incident direction of light is changed by the plurality of light conversion lenses and then reaches the corresponding photosensitive elements; light enters from the light inlet, is transmitted in the cavity after the incident direction of the light is changed by the light inlet lens group, and reaches the photosensitive element after being imaged and zoomed by the imaging lens group and the zoom lens group respectively; the cross section of the cavity where the light path is located in the cavity is polygonal. Utilize this application embodiment, through zooming lens group, and a plurality of commentaries on classics light lens that contain to and the polygon shape of the cross-section at light path place etc. in the cavity, can realize many times or high power optics zoom, and the thickness of the module of making a video recording can keep unchangeable or the thickness of the module of making a video recording can be littleer.
Description
Technical Field
The application relates to the technical field of optical zooming, in particular to an optical zooming camera module and a mobile terminal.
Background
The technology of the terminal is rapidly developed, especially the mobile terminal (such as a mobile phone). The development of mobile terminals provides convenience for people's life, such as taking pictures or video calls, and thus, a camera module in a mobile terminal becomes one of the focuses of people's attention. With the continuous development of terminal technology, people have higher and higher requirements on the camera function of the mobile terminal, such as high-power optical zoom, high photo resolution and the like. To meet the demand of people, more and more mobile terminal manufacturers or developers are engaged in the research of the optical zoom of the camera.
At present, due to the size limitation of mobile terminals such as mobile phones, cameras usually employ a digital zoom mode to implement the zooming-in and zooming-out functions of photographed images. The mobile terminal adopting the optical zoom camera module has a convex camera module part at the rear end, i.e. the size of the mobile terminal is larger, so that the mobile terminal is required to have a larger size when the mobile terminal needs to perform multiple or high-power optical zoom, and only the digital zoom can be used when the mobile terminal needs to have a small size.
Disclosure of Invention
The embodiment of the application aims to provide an optical zooming camera module and a mobile terminal, so as to solve the problems that the size of the mobile terminal is required to be larger when multiple times or high power optical zooming is required, and only digital zooming can be used when the size of the mobile terminal is required to be small in the prior art.
In order to solve the above technical problem, the embodiment of the present application is implemented as follows:
the utility model provides a module of making a video recording that optics zoomed, the module of making a video recording that optics zoomed includes:
the cavity is provided with a light inlet hole arranged on the cavity, and a light inlet lens group, a zoom lens group, an imaging lens group and a photosensitive element which are positioned in the cavity;
the zoom lens group comprises a plurality of light conversion lenses, and the incident direction of light is changed by the light conversion lenses to reach the corresponding photosensitive elements;
light enters from the light inlet hole, is transmitted in the cavity after the incident direction of the light is changed by the light inlet lens group, and reaches the photosensitive element after being imaged and zoomed by the imaging lens group and the zooming lens group respectively; the section of the cavity where the light path is located is polygonal.
Optionally, the entrance lens group includes a prism.
Optionally, the light entrance lens group further includes a first lens, and the first lens is disposed opposite to the light entrance hole and is configured to converge the light entering from the light entrance hole to the prism.
Optionally, the optical zoom camera module further includes a first driving mechanism for driving the zoom lens group to perform optical zooming.
Optionally, a cross section of a cavity where an optical path in the cavity is located is quadrilateral, the zoom lens group includes a first light conversion lens, a second light conversion lens, a third light conversion lens and a fourth light conversion lens, and a first photosensitive element, a second photosensitive element, a third photosensitive element, a fourth photosensitive element and a fifth photosensitive element are arranged in the cavity;
a first light conversion lens and a first photosensitive element are respectively arranged along the direction of emergent light of the imaging lens group; a second light conversion lens and a second photosensitive element are respectively arranged along the direction forming a first preset angle with the emergent ray; a third light conversion lens and a third photosensitive element are respectively arranged along the direction forming a second preset angle with the emergent ray; a fourth light conversion lens and a fourth photosensitive element are respectively arranged along the direction forming a third preset angle with the emergent ray; a fifth photosensitive element is arranged along a direction forming a fourth preset angle with the emergent ray;
the first driving mechanism controls the rotation of each light conversion lens so as to change the propagation direction of the light rays entering the light conversion lens or completely project the light rays entering the light conversion lens onto the corresponding photosensitive element.
Optionally, the first predetermined angle is 90 degrees, the second predetermined angle is 180 degrees, the third predetermined angle is 270 degrees, and the fourth predetermined angle is 360 degrees.
Optionally, the imaging lens group comprises at least one convex lens.
Optionally, the imaging lens group comprises at least one concave lens.
Optionally, the prism in the light entrance lens group is a triangular prism.
The embodiment of the application provides a mobile terminal, mobile terminal includes the body and install in this internal above the optics zoom the module of making a video recording.
It can be seen from the above technical solutions provided by the embodiments of the present application that the optical zoom camera module of the embodiments of the present application includes a cavity, an entrance aperture disposed on the cavity, and an entrance lens set, a zoom lens set, an imaging lens set and a photosensitive element located in the cavity, where light enters from the entrance aperture, propagates in the cavity after changing the incident direction of the light through the entrance lens set, and reaches the photosensitive element after imaging and zooming through the imaging lens set and the zoom lens set, respectively, where the cross section of the light path in the cavity is polygonal, and the zoom lens set includes a plurality of light conversion lenses, and reaches the corresponding photosensitive element after changing the incident direction of the light through the plurality of light conversion lenses, so that multiple times or high times optical zoom can be achieved through the zoom lens set, the plurality of light conversion lenses included therein, the polygonal shape of the cross section of the light path in the cavity, and the like, and the thickness of the camera module can be kept unchanged or the thickness of the camera module can be smaller.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic top view of an optical zoom camera module structure according to the present application;
fig. 2 is a schematic side view of an optical zoom camera module according to the present application;
FIG. 3 is a schematic top view of another optical zoom camera module according to the present application;
FIG. 4 is a schematic side view of another optical zoom camera module according to the present application;
fig. 5 is an imaging schematic diagram of an optical zoom camera module structure according to the present application;
fig. 6 is a diagram of an embodiment of a mobile terminal according to the present application.
Illustration of the drawings:
10-cavity, 11-light inlet hole, 20-light inlet lens group, 21-first lens, 30-imaging lens group, 40-zoom lens group, 41-light conversion lens, 411-first light conversion lens, 412-second light conversion lens, 413-third light conversion lens, 414-fourth light conversion lens, 50-photosensitive element, 51-first photosensitive element, 52-second photosensitive element, 53-third photosensitive element, 54-fourth photosensitive element, 55-fifth photosensitive element and 60-first driving mechanism.
Detailed Description
The embodiment of the application provides an optical zooming camera module and a mobile terminal.
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
As shown in fig. 1, the present application provides an optical zoom camera module, which may be an independent camera device capable of achieving optical zoom, such as a camera or a camcorder, or may be a component of an electronic device, such as a camera module in a mobile phone. The optical zoom camera module may include a cavity 10, a light entrance hole 11 disposed on the cavity 10, and a light entrance lens group 20, a zoom lens group 40, an imaging lens group 30, and a photosensitive element 50 disposed in the cavity 10. Wherein:
the shape of the cavity 10 can be adjusted according to actual conditions, and the cavity can be a regular structure, such as a rectangular parallelepiped, a pentagonal prism, or a hexagonal prism, or an irregular structure. The length of each side of the cavity 10 and the height of the cavity 10 may be adjusted according to actual requirements, for example, if the optical zoom camera module is a camera module in a mobile phone, the thickness of the current mobile phone is increasingly thinner, so the thickness of the cavity 10 is required to be as thin as possible.
The cavity 10 is provided with a light inlet hole 11, the light inlet hole 11 may be located in the middle of the cavity 10, or in the edge of the cavity 10, or the like, and may be specifically set according to actual conditions, which is not limited in the embodiments of the present application. The light inlet 11 may be circular or square, and the aperture size may be set according to actual conditions. The light inlet 11 can introduce light from the external environment into the cavity 10, and the light forms an image on the photosensitive element 50 after being processed by the lens set in the cavity 10. The lens group can be divided into a plurality of different parts according to the function, firstly, the light entrance lens group 20 can be arranged at the position close to the light entrance hole 11, and the external light can be transmitted into the cavity 10 through the light entrance lens group 20. Since the cavity 10 is thin and the light inlet 11 is generally disposed on the thickness surface, it is difficult to set different lenses or lens sets within the thickness range of the cavity 10, for this reason, different lenses or lens sets may be set on the length and/or width of the cavity 10, so that the incident direction of the light entering through the light inlet 11 needs to be changed, and based on this, a corresponding light conversion lens 41, such as a prism or a plane mirror, may be disposed in the light inlet lens set 20. Based on the above-mentioned light entrance lens assembly 20, the propagation process of the light in the cavity 10 is: the incident direction of the light entering through the light entrance hole 11 can be changed by 90 degrees by the light conversion lens 41 in the light entrance lens group 20, and then the light propagates in the cavity 10. The light entrance lens group 20 may further include other lenses besides the light conversion lens 41, for example, a lens with a light converging function, a filter lens, and the like, which may be specifically set according to an actual situation, and the embodiment of the present application does not limit this.
Next, in order to image the light entering the cavity 10, an imaging lens set 30 may be disposed adjacent to the light entrance lens set 20. One or more optical lenses, such as a convex lens, a concave lens, etc., may be included in the imaging lens group 30. In practical applications, the imaging lens group 30 may include one or more convex lenses, or the imaging lens group 30 may include one or more concave lenses, or the imaging lens group 30 may include one or more convex lenses and one or more concave lenses, wherein the number of the convex lenses and the number of the concave lenses may be one or more. Wherein the image formed by the imaging lens assembly 30 can be better achieved by the combination of a plurality of thin lenses (including convex and concave lenses). The imaging lens group 30 of which structure is used in the embodiment of the present application can be set according to actual conditions, and the embodiment of the present application does not limit this.
In order to make the image pickup module have an optical zoom function, a zoom lens group 40 may be provided at a position adjacent to the imaging lens group 30. Since the lens groups and the formed images are completed in the cavity 10, and the purpose of optical zooming is difficult to achieve in a single direction such as the length or the width of the cavity 10, for this reason, light needs to be limited in the cavity 10, based on this, the zoom lens group 40 may include a plurality of light conversion lenses 41, and the position of each light conversion lens 41 may be set according to actual conditions or a zooming effect that needs to be achieved. In this way, the images formed by the imaging lens set 30 can be displayed on different photosensitive elements 50 through a plurality of different light conversion lenses 41, and the purpose of optical zooming is achieved by changing the distance between the imaging lens set 30 and the photosensitive elements 50. The number of the light conversion lenses 41 may be set according to the optical zoom power to be achieved, and for example, the number includes 2 light conversion lenses 41, 3 light conversion lenses 41, or 4 light conversion lenses 41. Based on the variable focus lens set 40, the propagation process of the light ray in the cavity 10 is as follows: when light passes through the imaging lens assembly 30 to form an image and reaches the zoom lens assembly 40, the incident direction of the light is changed by the plurality of light conversion lenses 41 in the zoom lens assembly 40 and reaches the corresponding photosensitive elements 50.
Through the above related contents, after entering from the light entrance hole 11, the light respectively passes through the light entrance lens group 20, the zoom lens group 40 and the imaging lens group 30 in the cavity 10 and then reaches the photosensitive element 50, the light propagates in the cavity 10 to form a light path, and the cross section of the light path is a polygon, such as a quadrangle, a pentagon or a hexagon.
The photosensitive element 50 may be a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide Semiconductor). The photosensitive element 50 may be used to capture an image.
In addition, the camera module may further include a control chip, configured to obtain the collected image of the photosensitive element 50, and adjust the digital zoom multiple according to the requirement. Specifically, for example, an "interpolation" processing means is used to enlarge or reduce the area of each pixel in the acquired image, thereby achieving the purpose of enlarging or reducing the acquired image.
The relative positions (including the relative distances and the included angles between the lenses) of the light entrance lens group 20 may be fixed or may be adjustable in real time. For the case that the relative position of each lens is fixed, the relative relationship between the lenses under different light incidence conditions can be calculated in advance, and finally a relative position relationship with a large application range (or generally applicable) is determined as a basis, the relative position of each lens is set, and the corresponding lens is fixed in the cavity 10. In the case where the relative position of each lens is adjustable in real time, a driving mechanism may be provided in the optical lens group 20. The driving mechanism can adjust the relative position of each lens in the light entrance lens group 20, for example, the driving mechanism adjusts the light conversion lens 41 in the light entrance lens group 20, so that the propagation direction of the light entering the light entrance hole 11 is deflected to a certain extent, and the light enters the corresponding lens group for processing.
In addition, in addition to the optical lens group 20, other lens groups, such as the zoom lens group 40 and the imaging lens group 30, may also be provided with corresponding driving mechanisms for performing the related functions of the lens groups, for example, the zoom lens group 40 may perform zooming through the driving mechanisms, the imaging lens group 30 may perform imaging through the driving mechanisms, and so on.
The embodiment of the application provides an optical zooming camera module, which comprises a cavity and a light inlet hole arranged on the cavity, and a light entrance lens group, a zoom lens group, an imaging lens group and a photosensitive element which are positioned in the cavity, light enters from the light entrance hole, propagates in the cavity after the incident direction of the light is changed by the light entrance lens group, and reaches the photosensitive element after being imaged and zoomed by the imaging lens group and the zoom lens group respectively, wherein the section of the light path in the cavity is polygonal, and the zoom lens group comprises a plurality of light conversion lenses, and the incident direction of the light is changed by the plurality of light conversion lenses to reach the corresponding photosensitive elements, so that, by the zoom lens group, the plurality of light conversion lenses contained by the zoom lens group, the polygonal shape of the cross section of the light path in the cavity, and the like, multiple times or high power optical zooming can be realized, and the thickness of the camera module can be kept unchanged or the thickness of the camera module can be smaller.
Example two
Fig. 3 is a still another optical zoom camera module according to an embodiment of the present application. The optical zooming camera module comprises all functional units of the optical zooming camera module shown in figures 1-2, and is improved on the basis of the functional units, and the improvement content is as follows:
currently, terminal technologies are rapidly developing, especially for mobile terminals (e.g., mobile phones). The development of mobile terminals provides convenience for the life of people, and the life of people is not more and more separated from the mobile terminals. While mobile terminals are continuously developed, people have higher and higher requirements on mobile terminals, such as large screens, better hand-held feeling, thinness, better performance, clear photographing, zoom cameras, and the like. Among them, people have higher and higher requirements for camera functions of mobile terminals, such as high power optical zoom, high photo resolution, and the like. More and more mobile terminal manufacturers or developers are working on the optical zoom of the camera to meet the demand of people. At present, due to the size limitation of mobile terminals such as mobile phones, cameras usually adopt digital zooming, and mobile terminals adopting optical zooming cameras have a rear camera part protruding, so that the size of the mobile terminal cannot be reduced when the optical zooming is required, and the mobile terminal can only use digital zooming when the size of the mobile terminal is required to be reduced. How to solve the above problem, the embodiment of the present application provides a camera module that can realize multiple times and high power optical zoom and can make the size of the mobile terminal smaller or keep unchanged.
The optical zoom camera module comprises: the zoom lens comprises a cavity 10, a light inlet 11 arranged on the cavity 10, and a light inlet lens group 20, a zoom lens group 40, an imaging lens group 30 and a plurality of photosensitive elements 50 which are arranged in the cavity 10. The zoom lens group 40 includes a plurality of light conversion lenses 41, which are described below by way of example:
the zoom lens group 40 includes a first light conversion lens 411, a second light conversion lens 412, a third light conversion lens 413, and a fourth light conversion lens 414, and a first photosensitive element 51, a second photosensitive element 52, a third photosensitive element 53, a fourth photosensitive element 54, and a fifth photosensitive element 55 are disposed in the cavity 10.
A first light conversion lens 411 and a first photosensitive element 51 are respectively arranged along the direction of the emergent light of the imaging lens group 30; the second light conversion lens 412 and the second photosensitive element 52 are respectively arranged along the direction forming a first preset angle with the emergent ray; a third light conversion lens 413 and a third photosensitive element 53 are respectively arranged along the direction forming a second preset angle with the emergent ray; a fourth light conversion lens 414 and a fourth photosensitive element 54 are respectively arranged along a direction forming a third predetermined angle with the emergent light; a fifth photosensitive element 55 is disposed in a direction at a fourth predetermined angle to the outgoing light ray.
The sizes of the first predetermined angle, the second predetermined angle, the third predetermined angle and the fourth predetermined angle may be set or adjusted according to actual conditions, wherein the sizes of the first predetermined angle, the second predetermined angle, the third predetermined angle and the fourth predetermined angle may present a certain association relationship, specifically, if the first predetermined angle is 90 degrees, the second predetermined angle is 180 degrees, the third predetermined angle is 270 degrees, and the fourth predetermined angle is 360 degrees, that is, as shown in fig. 3.
As shown in fig. 3, the zoom lens group 40 includes 4 light conversion lenses 41, wherein one light conversion lens 41 is located on the same center line as the imaging lens group 30, and the other 3 light conversion lenses 41 are located at 3 corners close to the cavity 10, respectively. A light-sensing element 50 is disposed inside the cavity 10 behind each light-converting lens 41. With the above structure, the light passes through the 4 light conversion lenses 41 and changes the incident direction thereof, and then reaches the corresponding photosensitive elements 50.
By the overall structure of the optically zoomed camera module as shown in fig. 3, it can be determined that: light enters from the light inlet 11, changes the incident direction of the light through the light entrance lens group 20, propagates in the cavity 10, is imaged through the imaging lens group 30 and is zoomed through the zoom lens group 40, and then reaches the corresponding photosensitive element 50 to form a corresponding image. Through the light transmission, the cross section of the light path in the cavity 10 is a quadrangle, that is, the shape of the cavity 10 in fig. 3, and thus, the shape of the cavity 10 can be determined by the cross section of the light path in the cavity 10.
The optical zoom camera module of fig. 3 may be further modified as follows:
first, considering that the main purpose or function of the light entrance lens group 20 is to introduce the light entering the light entrance hole 11 into the functional range of the imaging lens group 30 and the zoom lens group 40, and considering that the prism can change the incident direction of the light, and the corresponding operation process is simple and easy, a prism can be used as a member of the light entrance lens group 20, that is, the light entrance lens group 20 includes the prism 22. The prism 22 may be any prism capable of changing the incident direction of light, such as a triangular prism or a rectangular prism.
In addition, considering that the size of the image pickup module for optical zooming should be as small as possible, and the adjustment of the angle of the prism 22 with respect to the light should be as simple as possible, the prism 22 in the light entrance lens group 20 may be a triangular prism which is easy and convenient to adjust and is commonly used in life. In addition, the triple prism can reduce the loss of light to the greatest extent, and can realize function switching (one function is light nondestructive refraction, and the other function is light nondestructive projection). Thus, the position and the posture of the prism are adjusted, and the angle of the light ray entering the prism is adjusted, so that the incident direction of the light ray can be changed by 90 degrees in fig. 2, and the light ray is introduced into the action range of the imaging lens group 30 and the zoom lens group 40 and other lens groups.
In addition, the optical zoom camera module may further include a second driving mechanism for controlling the rotation of the prism in the light entrance lens group 20. The prism in the light entrance lens group 20 may be controlled to rotate by a second driving mechanism, so that the prism in the light entrance lens group 20 may rotate by a certain angle to receive light entering from the light entrance hole 11. The second driving mechanism may be an electric motor, or may be another device capable of controlling the rotation of the prism in the light entrance lens group 20.
It should be noted that, the first light conversion lens 411, the second light conversion lens 412, the third light conversion lens 413, and the fourth light conversion lens 414 in the zoom lens group 40 may all be triangular prisms, and light rays can be refracted without loss through the triangular prisms so as to reflect corresponding light rays onto a certain lens or the photosensitive element 50, thereby greatly simplifying the internal structure of the optical zoom camera module and reducing the realizability of the optical zoom camera module.
Secondly, the light that gets into through going into unthreaded hole 11, it reaches above-mentioned prism and by the light range that the prism used is limited, and some light is lost because can't reach the prism or can't be used by the prism, in order to improve the utilization ratio and the user experience of light, can be through the mode that assembles light with getting into unthreaded hole 11 the light projection on the prism. Specifically, as shown in fig. 4, the light entrance lens group 20 further includes a first lens 21, where the first lens 21 is disposed opposite to the light entrance hole 11 and is used for converging light entering from the light entrance hole 11 to the prism (i.e., the triangular prism).
The first lens 21 may be any lens with a converging function, such as a convex lens in fig. 4, or a combination of a plurality of concave lenses, or a combination of at least one convex lens and at least one concave lens, etc.
In practical application, through the structure that fig. 4 shows, through the effect of assembling of the relative first lens 21 that sets up, light in the wider range is shone on the prism, the prism reaches behind the light refraction respectively imaging lens group 30 with zoom lens group 40, the warp lens group 40 of zooming reachs photosensitive element 50 after refracting to the realization has promoted user experience to the shooting of scenery in the wider range.
Thirdly, in the process of taking a picture, when the scenes with different distances are taken, in order to make the picture clearer, the focal length of the scene often needs to be adjusted, and in order to realize the multiple times of optical zooming of the camera module with optical zooming and the high times of optical zooming, a mechanism for performing optical zooming can be arranged, and the following contents can be specifically seen: the optical zoom camera module further includes a first driving mechanism 60 for driving the zoom lens set 40 to perform optical zoom.
The first driving mechanism 60 may be an electric motor, or may be any other device capable of controlling the first light conversion lens 411, the second light conversion lens 412, the third light conversion lens 413, and the fourth light conversion lens 414 in the zoom lens group 40 to rotate.
In practical applications, the first driving mechanism 60 may be located on one or both sides of the zoom lens assembly 40 near the cavity 10 for driving the zoom lens assembly 40 to perform optical zooming. Specifically, the first driving mechanism 60 controls the rotation of each light conversion lens 41 (i.e. the first light conversion lens 411, the second light conversion lens 412, the third light conversion lens 413, and the fourth light conversion lens 414 in the zoom lens group 40), so that each light conversion lens 41 can rotate by a certain angle, thereby changing the propagation direction of the light entering the light conversion lens 41 or completely projecting the light entering the light conversion lens 41 onto the corresponding photosensitive element 50.
The following describes in detail an optical zooming process of the optical zooming camera module, and specifically, the following contents may be referred to:
as shown in fig. 3, the light is refracted to the right imaging lens group 30 by the prism in the light entrance lens group 20 located in the middle of the optical zoom camera module, and the first light conversion lens 411 (i.e. the prism) behind the right imaging lens group 30 may have two functions, namely: as shown in fig. 3, when optical zooming is required, the first light-converting lens 411 is rotated to enable light to reach the photosensitive elements 50 at different positions of the upper right corner, the upper left corner, the lower left corner and the lower right corner, so as to achieve optical zooming at different multiples, and to achieve optical zooming at other multiples, the light-converting lens 41 in the zoom lens group 40 at a corresponding position can be rotated to change the distance from the light to the photosensitive elements 50 after passing through the light-converting lens 41, thereby achieving optical zooming, and meanwhile, in the process of achieving optical zooming, the thickness of the image pickup module for optical zooming is not increased. As shown in fig. 5, when direct imaging is required, the first relay lens 411 is rotated so that light directly reaches the rightmost photosensitive element 50 without passing through the first relay lens 411 to realize imaging.
Finally, to achieve optical zoom within the imaging lens group 30, the imaging lens group 30 may include at least one convex lens, or the imaging lens group 30 may include at least one concave lens and at least one convex lens, and optical zoom is achieved by cooperation of the concave lens and the convex lens. The imaging lens assembly 30 can be moved between the optical lens assembly 20 and the zoom lens assembly 40, so as to adjust the position of the imaging lens assembly 30 and the relative positions of the internal lenses.
In addition, the image capturing module with optical zooming in this embodiment may further include a control chip, which may be used as a core control device of the image capturing module, and is used for controlling the first driving mechanism 60 to change the focal length of the zoom lens group 40, so as to perform optical zooming. Specifically, the camera module can perform optical zooming according to the following process: the control chip calculates the position state of each light conversion lens 41 in the zoom lens group 40 and the position of the imaging lens group 30 or the relative position of each lens in the imaging lens group 30 according to the optical zoom factor required by the user, controls the first driving mechanism 60 to operate, drives each lens in the imaging lens group 30 to move relatively under the control of the first driving mechanism 60, and finally realizes the zooming in and out of the scenery required to be shot according to the required optical zoom factor to finish the optical zoom.
Based on above-mentioned relevant content, the optical zoom's the module of making a video recording that this application embodiment provided can zoom optically through zooming lens group 40, zooms the scenery of department far away, lets the person of shooing stand and also can shoot clear photo far away, consequently, the setting of the module of making a video recording that the above-mentioned optical zoom for when shooing the scenery of different distances, can carry out the focus regulation operation, make picture or video after the shooting clearer, the thickness of the optical zoom's the module of making a video recording is less moreover.
The embodiment of the application provides an optical zooming camera module, which comprises a cavity and a light inlet hole arranged on the cavity, and a light entrance lens group, a zoom lens group, an imaging lens group and a photosensitive element which are positioned in the cavity, light enters from the light entrance hole, propagates in the cavity after the incident direction of the light is changed by the light entrance lens group, and reaches the photosensitive element after being imaged and zoomed by the imaging lens group and the zoom lens group respectively, wherein the section of the light path in the cavity is polygonal, and the zoom lens group comprises a plurality of light conversion lenses, and the incident direction of the light is changed by the plurality of light conversion lenses to reach the corresponding photosensitive elements, so that, by the zoom lens group, the plurality of light conversion lenses contained by the zoom lens group, the polygonal shape of the cross section of the light path in the cavity, and the like, multiple times or high power optical zooming can be realized, and the thickness of the camera module can be kept unchanged or the thickness of the camera module can be smaller.
EXAMPLE III
Above for the optical zoom's that this application embodiment provided module of making a video recording, based on same thinking, this application embodiment still provides a mobile terminal. The mobile terminal can be a mobile phone or a tablet computer.
The mobile terminal comprises a body and an optical zooming camera module 610 installed in the body according to the first embodiment or the second embodiment.
As shown in fig. 6, a main board 620 is disposed in the main body, and other functional devices of the mobile terminal, such as an earphone jack, a microphone, a signal processing device, etc., are further included on the main board 620. The optical zoom camera module 610 is located on the main board 620, and the optical zoom camera module 610 is the camera module according to the above embodiments.
The embodiment of the application provides a mobile terminal, the mobile terminal comprises a body and an optical zooming camera module arranged in the body, the optical zooming camera module comprises a cavity, an incident light hole arranged on the cavity, and an incident light lens group positioned in the cavity, a zooming lens group, an imaging lens group and a photosensitive element, light enters from the incident light hole, propagates in the cavity after changing the incident direction of the light through the incident light lens group, and reaches the photosensitive element after imaging and zooming respectively through the imaging lens group and the zooming lens group, wherein the cross section of a light path in the cavity is polygonal, the zooming lens group comprises a plurality of light conversion lenses, reaches the corresponding photosensitive element after changing the incident direction of the light through the plurality of light conversion lenses, and thus, the mobile terminal passes through the zooming lens group and comprises a plurality of light conversion lenses, and the polygonal shape of the cross section of the light path in the cavity is the same, multiple times or high power optical zooming can be realized, and the thickness of the camera module can be kept unchanged or the thickness of the camera module can be smaller.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a camera module, system, or computer program product for optical zoom. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of optically variable camera modules, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer readable media, both permanent and non-permanent, removable and non-removable, may implement information storage by any optically variable camera module or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, an optical zoom camera module, an article, or an apparatus that comprises a list of elements includes not only those elements, but also other elements not expressly listed or inherent to such process, optical zoom camera module, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in a process, an optical zoom camera module, a commodity, or a device that comprises the element.
It will be apparent to those skilled in the art that embodiments of the present application may provide a camera module, system or computer program product that is optical zoom. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the optical zoom camera module embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the optical zoom camera module embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The utility model provides an optical zoom's module of making a video recording which characterized in that, optical zoom's module of making a video recording includes:
the cavity is provided with a light inlet hole, a light inlet lens group, a zoom lens group, an imaging lens group and a plurality of photosensitive elements, wherein the light inlet hole is formed in the cavity;
the zoom lens group comprises a plurality of light conversion lenses, one photosensitive element is correspondingly arranged behind each light conversion lens, and the incident direction of light is changed by the plurality of light conversion lenses and then reaches the corresponding photosensitive element;
light enters from the light inlet hole, is transmitted in the cavity after the incident direction of the light is changed by the light inlet lens group, and reaches the corresponding photosensitive element after being imaged and zoomed by the imaging lens group and the zooming lens group respectively; the section of the cavity where the light path is located is polygonal.
2. The optically variable camera module of claim 1, wherein said set of entrance optics comprises a prism.
3. The optical zoom camera module of claim 2, wherein the light entrance lens group further comprises a first lens, and the first lens is disposed opposite to the light entrance hole and is configured to converge the light entering from the light entrance hole to the prism.
4. The optically variable camera module of claim 1, further comprising a first drive mechanism for driving the variable focal lens group for optical zoom.
5. The optical zoom camera module according to claim 4, wherein a cross-section of a cavity in which an optical path is located in the cavity is quadrilateral, the zoom lens group includes a first light conversion lens, a second light conversion lens, a third light conversion lens and a fourth light conversion lens, and a first photosensitive element, a second photosensitive element, a third photosensitive element, a fourth photosensitive element and a fifth photosensitive element are disposed in the cavity;
a first light conversion lens and a first photosensitive element are respectively arranged along the direction of emergent light of the imaging lens group; a second light conversion lens and a second photosensitive element are respectively arranged along the direction forming a first preset angle with the emergent ray; a third light conversion lens and a third photosensitive element are respectively arranged along the direction forming a second preset angle with the emergent ray; a fourth light conversion lens and a fourth photosensitive element are respectively arranged along the direction forming a third preset angle with the emergent ray; a fifth photosensitive element is arranged along a direction forming a fourth preset angle with the emergent ray;
the first driving mechanism controls the rotation of each light conversion lens so as to change the propagation direction of the light rays entering the light conversion lens or completely project the light rays entering the light conversion lens onto the corresponding photosensitive element.
6. The optically variable camera module of claim 5, wherein the first predetermined angle is 90 degrees, the second predetermined angle is 180 degrees, the third predetermined angle is 270 degrees, and the fourth predetermined angle is 360 degrees.
7. The optically variable camera module of claim 1, wherein said imaging optics group includes at least one convex lens.
8. The optically variable camera module of claim 1, wherein said imaging optics group includes at least one concave lens.
9. The optical zoom camera module of claim 2, wherein the prism of the set of entrance lenses is a triple prism.
10. A mobile terminal, characterized in that the mobile terminal comprises a body and an optical zoom camera module according to any one of claims 1-9 installed in the body.
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| CN109218481B (en) * | 2018-11-12 | 2021-03-19 | 维沃移动通信有限公司 | Imaging module, terminal equipment and zooming method |
| CN112887519B (en) * | 2019-11-29 | 2022-09-23 | 华为技术有限公司 | Camera module and electronic equipment |
| CN111308643B (en) * | 2019-12-25 | 2024-04-12 | Oppo广东移动通信有限公司 | Camera module, periscope type camera module, camera module and electronic device |
| CN110879454A (en) * | 2019-12-25 | 2020-03-13 | Oppo广东移动通信有限公司 | Camera module, periscopic camera module, camera assembly and electronic device |
| US11693221B2 (en) | 2019-12-25 | 2023-07-04 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Camera module, camera assembly, and electronic device |
| KR102597158B1 (en) * | 2021-02-19 | 2023-11-02 | 삼성전기주식회사 | Optical imaging system |
| CN113985506B (en) * | 2021-10-27 | 2023-01-31 | 维沃移动通信有限公司 | Image pickup apparatus |
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