WO2019071478A1

WO2019071478A1 - Smart terminal zoom camera module and usage method therefor

Info

Publication number: WO2019071478A1
Application number: PCT/CN2017/105748
Authority: WO
Inventors: 江小坤
Original assignee: 深圳传音通讯有限公司
Priority date: 2017-10-11
Filing date: 2017-10-11
Publication date: 2019-04-18
Also published as: CN111213360A; CN111213360B

Abstract

Provided in the present invention are a smart terminal zoom camera module and a usage method therefor, the smart terminal zoom camera module comprising: a fixed focus lens, adjustable lenses, and an electromagnetic extrusion block; the adjustable lenses are arranged on two sides of the fixed focus lens, and can produce extrusion deformation under the extrusion pressure of the electromagnetic extrusion block; the electromagnetic extrusion block is arranged between the fixed focus lens and the adjustable lenses and is used for extruding the adjustable lenses and adjusting the extrusion deformation of the adjustable lenses, thereby adjusting the focal length of the zoom camera module. The zoom camera module in the technical solution of the present invention is small and low-cost, has a simple structure, and easily achieves optical zoom without the need for a complex telescopic mechanism, a synthesising algorithm, or an external lens.

Description

Zoom camera module of intelligent terminal and using method thereof

Technical field

The present invention relates to the field of intelligent terminals, and in particular, to a zoom camera module of an intelligent terminal and a method for using the same.

Background technique

With the continuous development of electronic information technology, smart terminals such as smart phones and tablet computers have been widely used, and smart terminals have become an indispensable necessity in the life of users. Due to the convenience of smart terminals and the improvement of the pixels of smart terminal cameras, more and more users are more inclined to take pictures through smart terminals, and enjoy and record the beauty of life at all times, especially for female users, using smart phones. When smart terminals take photos or take selfies more and more, to some extent, smart terminals have gradually replaced cameras as the mainstream tools for current photography.

The development of intelligent terminals has been experienced for more than ten years. In the past ten years, the software, hardware and user experience of intelligent terminals have undergone subversive changes. With the continuous advancement of smart terminal technology, users have Not only is it satisfied that the camera function using the smart terminal simply takes a photo for real-time recording, but prefers to take a photo that is better, more diverse, and personalized. In order to meet the user's personalized and diverse needs for taking photos, the camera of the smart terminal provides more and more functions for users to take photos or take self-portrait photos.

The zoom lens is a camera lens that can change the focal length within a certain range to obtain different wide and narrow angles of view, different sizes of images, and different scene ranges. The zoom lens can change the shooting range by changing the focal length without changing the shooting distance, which is very advantageous for picture composition. Since a zoom lens can serve as a plurality of fixed-focus lenses, the travel time not only reduces the number of carrying photographic equipment, but also saves time for lens replacement.

The zoom lens has the following disadvantages compared to the fixed focus lens:

1. expensive;

2. Large volume;

3. At any given focal length, the imaging is often not as clear as the best fixed-focus lens.

Regardless of these inherent flaws, the optical industry has used computers to design lenses, and has already produced many excellent zoom lenses. The imaging of many zoom lenses is very clear, and the size is relatively small, but the price is still very expensive.

The optical zoom camera enables the smart terminal to achieve optical zoom during the photo taking process, ensuring that the smart terminal is in the zoom shot In the case of shooting, it is also possible to take pictures that are clear, non-destructive and of high quality.

The intelligent terminal optical zoom camera mainly has the following solutions:

1. External zoom lens

By optically zooming the optical lens on the smart terminal, a higher magnification can be achieved by different external lens designs, but the drawback of this solution is poor portability, which is not conducive to fast capture.

2. Dual camera

Through the combination of a short focal length and a telephoto camera, the effect of similar stepless optical zoom is realized by the dual camera algorithm. The drawback is that it uses software to synthesize the effect, which is not a stepless lossless zoom in the true sense.

3. Telescopic optical zoom camera

The intelligent terminal is basically no longer used, and is mostly used for cameras. The lens is active and the optical zoom performance is excellent. The drawback is that it is bulky, which is contrary to the development trend of the smart terminal.

Therefore, the present invention provides a zoom camera module of an intelligent terminal and a method for using the same, the zoom camera module includes: a fixed focus lens, an adjustment lens, and an electromagnetic squeeze block; and the adjustment lens is disposed on the fixed focus lens On both sides, an extrusion deformation can be generated under the extrusion of the electromagnetic pressing block; the electromagnetic pressing block is disposed between the fixed focus lens and the adjustment lens for squeezing the adjustment a lens that adjusts an extrusion deformation of the adjustment lens to adjust a focal length of the zoom camera module. In use, the zoom camera module of the smart terminal is turned on; the adjustment switch of the zoom camera module is set, and the adjustment switch and the electromagnetic squeeze block are pressed and deformed by the electromagnetic pressing block. Corresponding relationship of the adjustment degree; detecting a change of the adjustment switch; adjusting according to the change of the adjustment switch and the adjustment relationship between the adjustment switch and the electromagnetic extrusion block to the extrusion deformation of the adjustment lens The adjusting deformation of the lens adjusts a focal length of the zoom camera module. The technical solution of the invention is small in size, simple in structure, low in cost, and does not require complicated telescopic mechanism, synthetic algorithm or external lens, and optical zoom can be easily realized.

Summary of the invention

In order to overcome the above technical deficiencies, an object of the present invention is to provide a zoom camera module of a smart terminal and a method of using the same.

An aspect of the present invention discloses a zoom camera module of a smart terminal, the zoom camera module comprising: a fixed focus lens, an adjustment lens, and an electromagnetic squeeze block;

The adjusting lens is disposed on both sides of the fixed focus lens, and can be pressed and deformed under the extrusion of the electromagnetic pressing block;

The electromagnetic pressing block is disposed between the fixed focus lens and the adjusting lens for pressing the adjusting lens, adjusting an extrusion deformation of the adjusting lens, thereby adjusting the zoom camera module focal length.

Preferably, the thickness of the adjustment lens is smaller than the thickness of the fixed focus lens.

Preferably, the electromagnetic pressing block is evenly disposed between the fixed focus lens and the adjustment lens.

Preferably, an accommodation space is formed between the fixed focus lens and the adjustment lens, and the accommodation space accommodates the electromagnetic extrusion block.

Preferably, the electromagnetic pressing blocks are four;

The fixed focus lens is respectively formed with an accommodation space at four end points corresponding to the adjustment lens, and the accommodation space accommodates the electromagnetic extrusion block.

In another aspect of the present invention, a method of using the zoom camera module is disclosed, and the method of using the method includes the following steps:

Turning on the zoom camera module of the smart terminal;

Setting an adjustment switch of the zoom camera module, and setting a correspondence relationship between the adjustment switch and an adjustment degree of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens;

Detecting a change in the adjustment switch;

Adjusting the zoom deformation of the adjustment lens according to a change of the adjustment switch and a corresponding relationship between the adjustment switch and an adjustment degree of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens, thereby adjusting the zoom The focal length of the camera module.

Preferably, the step of setting an adjustment switch of the zoom camera module, and setting a correspondence between the adjustment switch and the degree of adjustment of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens comprises:

Corresponding relationship between a driving current of the zoom camera module and an adjustment degree of the electromagnetic pressing block to the extrusion deformation of the adjusting lens;

Corresponding relationship between the adjustment switch and the driving current of the zoom camera module is set, thereby setting a correspondence relationship between the adjustment switch and the degree of adjustment of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens.

Preferably, the method of using further comprises the following steps:

Setting a deformation threshold in the zoom camera module;

Detecting an extrusion deformation of the adjustment lens;

Comparing the extrusion deformation of the adjustment lens with the deformation threshold;

When the extrusion deformation of the adjustment lens exceeds the deformation threshold, the adjustment of the extrusion deformation of the adjustment lens by the electromagnetic extrusion block is stopped.

Preferably, the method of using further comprises the following steps:

Setting a first time threshold in the zoom camera module;

Detecting a cumulative time when the zoom camera module is turned on;

Comparing the accumulated time of the zoom camera module to the first time threshold;

When the accumulated time of the zoom camera module is turned on exceeds the first time threshold, the zoom camera module is turned off.

Preferably, the method of using further comprises the following steps:

Setting a second time threshold in the zoom camera module;

After detecting that the zoom camera module is turned on, the electromagnetic pressing block generates a pressing time for pressing the adjusting lens;

Comparing a pressing time of the electromagnetic pressing block to the pressing deformation of the adjusting lens and the second time threshold;

When the pressing time of the electromagnetic pressing block to the extrusion deformation of the adjustment lens exceeds the second time threshold, the pressing of the adjustment lens by the electromagnetic pressing block is stopped.

After adopting the above technical solution, compared with the prior art, the following beneficial effects are obtained:

The zoom camera module and the method for using the same, the zoom camera module includes: a fixed focus lens, an adjustment lens, and an electromagnetic extrusion block; the adjustment lens is disposed on both sides of the fixed focus lens Forming an extrusion deformation under the pressing of the electromagnetic pressing block; the electromagnetic pressing block is disposed between the fixed focus lens and the adjustment lens for pressing the adjustment lens, and adjusting the Adjusting the extrusion deformation of the lens to adjust the focal length of the zoom camera module. In use, the zoom camera module of the smart terminal is turned on; the adjustment switch of the zoom camera module is set, and the adjustment switch and the electromagnetic squeeze block are pressed and deformed by the electromagnetic pressing block. Corresponding relationship of the adjustment degree; detecting a change of the adjustment switch; adjusting according to the change of the adjustment switch and the adjustment relationship between the adjustment switch and the electromagnetic extrusion block to the extrusion deformation of the adjustment lens The adjusting deformation of the lens adjusts a focal length of the zoom camera module. The technical solution of the invention is small in size, simple in structure, low in cost, and does not require complicated telescopic mechanism, synthetic algorithm or external lens, and optical zoom can be easily realized.

DRAWINGS

1 is a schematic structural view of a zoom camera module according to a preferred embodiment of the present invention;

2 is a flow chart showing a method of using a zoom camera module in accordance with a preferred embodiment of the present invention;

3 is a schematic flow chart of a step of setting a regulating switch in the method of using FIG. 2;

4 is a schematic flow chart showing a step of limiting deformation of an adjustment lens in the method of use of FIG. 2;

FIG. 5 is a schematic flow chart of a timeout closing step of a zoom camera module in the method of using FIG. 2; FIG.

FIG. 6 is a schematic flow chart of the step of adjusting the lens deformation timeout in the use method of FIG. 2 .

Reference numerals: 100-zoom camera module; 11-fixed lens; 12-adjustment lens; 13-electromagnetic extrusion block.

Detailed ways

Advantages of the present invention are further explained below in conjunction with the accompanying drawings and specific embodiments.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with aspects of the invention as detailed in the appended claims.

The terminology used in the present invention is for the purpose of describing particular embodiments, and is not intended to limit the disclosure. The singular forms "a", "the", "the" and "the" It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, etc. may be employed in the present invention to describe different time thresholds, this should not be limited to these terms. These terms are only used to distinguish the same type of time threshold from each other. For example, the first time threshold may also be referred to as a second time threshold without departing from the scope of the invention, and similarly, the second time threshold may also be referred to as a first time threshold. Depending on the context, the words "when" can be interpreted as "when" or "when" or "in response to a determination" as used herein.

In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "set", "set", "install" and the like should be understood broadly, for example, may be mechanical or electrical, or may be The internal communication between the two components may be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms may be understood according to specific circumstances.

The zoom camera module and the method of using the same can be applied to smart terminals. The smart terminals can be in various forms. For example, the smart terminal described in the present invention can include, for example, a mobile phone, a smart phone, a notebook computer, a PDA (personal Mobile terminals such as digital assistants), PADs (tablets), PMPs (portable multimedia players), navigation devices, smart watches, and the like, and fixed terminals such as digital TVs, desktop computers, and the like. Hereinafter, the present invention will be described assuming that the terminal is a mobile terminal and assuming that the mobile terminal is a smart phone. However, those skilled in the art will appreciate that configurations in accordance with embodiments of the present invention can be applied to fixed type terminals in addition to components that are specifically for mobile purposes. For convenience of description, the embodiments of the present invention are described by taking a smart phone as an example, and other application scenarios may be referred to each other.

1 is a zoom camera module 100 according to a preferred embodiment of the present invention, the zoom camera module 100 includes: a fixed focus lens 11, an adjustment lens 12, an electromagnetic pressing block 13;

The adjusting lens 12 is disposed on two sides of the fixed focus lens 11 to generate an extrusion deformation under the pressing of the electromagnetic pressing block 13;

The electromagnetic pressing block 13 is disposed between the fixed focus lens 11 and the adjustment lens 12 for squeezing the The lens 12 is adjusted to adjust the extrusion deformation of the adjustment lens 12 to adjust the focal length of the zoom camera module 100.

The zoom camera module 100 of the present invention can be disposed on the back of the smart phone. First, a fixed-focus lens 11 having a larger thickness is disposed at a center position of the zoom camera module 100, and two sides are disposed on both sides of the fixed focus lens 11. The adjustment lens 12 having a small thickness is disposed between the fixed focus lens 11 and the adjustment lens 12, and an electromagnetic pressing block 13 for adjusting the deformation deformation of the adjustment lens 12 is provided.

The electromagnetic pressing block 13 may be evenly disposed between the fixed focus lens 11 and the adjustment lens 12 or at four end points of the zoom camera module 100. In order to facilitate the mounting and assembly of the electromagnetic pressing block 13, in a preferred embodiment, an accommodation space is formed between the fixed focus lens 11 and the adjustment lens 12, and the accommodation space accommodates the electromagnetic pressing block 13. Further, in a preferred embodiment, the accommodation space is four, and the electromagnetic pressing blocks 13 are four; the fixed focus lens 11 is respectively formed at four end points corresponding to the adjustment lens 12. There are four accommodation spaces, and the fixed focus lens 11 having the above-described accommodation space has a cross shape in a cross shape, and the accommodation space accommodates the electromagnetic extrusion block 13.

The working principle of the above-mentioned zoom camera module 100 is that when the zoom camera module 100 is turned on, the smart phone energizes the zoom camera module 100, and the electromagnetic pressing block 13 is used to drive the pressing action of the adjusting lens 12 by electromagnetic induction. The electromagnetic pressing block 13 presses the adjustment lens 12, the adjustment lens 12 is deformed to be deformed, and the adjustment lens 12 is formed into different shapes. The optical system of the zoom camera module 100 is changed, and different optical systems form different focal lengths, thereby Finish zooming.

The following takes the smart terminal as the mobile phone as an example to further explain the working principle of the mobile phone camera module:

The mobile phone camera is mainly composed of PCB board, lens, fixture and color filter, DSP (for CCD), sensor and other components. Its working principle is: shooting the scene through the lens, projecting the generated optical image onto the sensor, and then the optical image It is converted into an electrical signal, which is then converted into a digital signal by analog-to-digital conversion. The digital signal is processed by the DSP and sent to the mobile phone processor for processing, and finally converted into an image that can be seen on the screen of the mobile phone.

-PCB board

The PCB board is the printed circuit board used in the camera. It is divided into three types: hard board, soft board, and soft and hard board.

- lens

A lens is a device that images a scene on a sensor. It usually consists of several lenses. From the material point of view, the camera lens can be divided into plastic lenses and glass lenses. Both glass transmissibility and image quality have great advantages, but glass lenses are also costly.

The lens has two more important parameters: aperture and focal length. The aperture is a device mounted on the lens to control the amount of light reaching the sensor through the lens. In addition to controlling the amount of light passing through, the aperture also has the function of controlling the depth of field. The larger the aperture, the smaller the depth of field, and the background effect is usually a small depth of field when shooting a portrait. An embodiment. For example, Nokia 800 and Meizu MX quad-core version of the aperture is f / 2.2, millet 2 aperture is f / 2.0, iPhone 4S aperture is f / 2.4, the smaller the number, the larger the aperture, that is, the aperture of the millet 2 is the largest, not added In other words, the theoretical imaging effect is the best.

Another important parameter of the lens is the "focal length". The focal length is the distance from the center point of the lens to the sharp image formed on the sensor plane. According to the imaging principle, the focal length of the lens determines the size of the image formed by the object captured by the lens on the sensor. For example, when shooting the same object, the longer the focal length, the larger the image of the object. The long focal length is similar to a telescope.

(1) Fixed focus lens

A prime lens is a lens with only one fixed focal length. It has only one focal length, or only one field of view. It has no zoom function.

The design of the fixed-focus lens is much simpler than that of the zoom lens, but the zoom lens generally affects the imaging during zooming, and the maximum benefit of the fixed-focus lens relative to the zoom machine is that the focusing speed is fast and the image quality is stable. Many of the moving objects with digital cameras with fixed-focus lenses are clear and stable, the focus is very accurate, the picture is delicate, the graininess is very slight, and the metering is also accurate. The shortcomings of the fixed-focus lens are probably inconvenient. The size of the object to be photographed needs to be adjusted only by the movement of the photographer, and it is incapable in some situations where it is not suitable for moving.

(2) Zoom lens

The zoom lens is a photographic lens that can change the focal length within a certain range to obtain different wide and narrow angles of view, different sizes of images and different scene ranges. The zoom lens can change the shooting range by changing the focal length without changing the shooting distance, which is very advantageous for picture composition. Since a zoom lens can serve as a plurality of fixed-focus lenses, the travel time not only reduces the number of carrying photographic equipment, but also saves time for lens replacement.

The focus of the zoom lens is on the zoom capability. The so-called zoom capabilities include optical zoom, digital zoom, and hybrid zoom. Although both of them help to magnify distant objects during telephoto shooting, only optical zoom can support the image main body to image, and then add more pixels, so that the main body not only becomes larger, but also relatively clearer. Generally, the larger the zoom factor, the more suitable for telephoto shooting. Optical zoom is the same as traditional camera design, depending on the focal length of the lens, so the resolution and quality will not change. Digital zoom can only make the original image size smaller, making the image larger on the LCD screen, but it does not help to make the details clearer.

Optical zoom is produced by changes in the position of the lens, object, and focus. When the imaging surface moves in the horizontal direction, the vision and focal length will change, and the farther scene becomes clearer, making people feel like the object is progressive. Optical zoom is to change the focus position by moving the lens inside the lens to change the focal length of the lens. The length and length of the lens are changed, so that the image is enlarged and reduced. When the position of the focus is changed, the focal length also changes. For example, if the focus is moved in the opposite direction to the image plane, the focal length will become longer and the angle of view in the figure will become smaller. In this way, the scene within the viewing angle becomes larger on the imaging surface.

- Holder and color filter.

The holder is used to fix the lens, and there is also a color filter on the holder. The color filter is also a "separation filter". There are currently two color separation methods, one is the RGB primary color separation method, and the other is the CMYK complementary color separation method.

-DSP

DSP is also called digital signal processing chip. Its function is to optimize the digital image signal through a series of complicated mathematical algorithm operations, and finally transmit the processed signal to the display. At present, the design and production technology of DSP manufacturers are relatively mature, and the technical indicators are not much different. The DSP described above is used in the CCD because the DSP chip in the CMOS sensor camera has been integrated into the CMOS, and they are a whole in appearance. The camera with CCD sensor is divided into two separate parts: CCD and DSP.

-sensor

The sensors on the phone are now CMOS. For the sensor, the CMOS is small compared to the CCD, the price is low, and the output is high. And with the continuous development of CMOS technology, the gap between image quality and CCD has been very small, and the performance on high frame rate video is better than CCD.

Referring to FIG. 2, the present invention also discloses a method for using the zoom camera module 100, which includes the following steps:

S100: Turn on the zoom camera module 100 of the smart terminal;

S200: setting an adjustment switch of the zoom camera module 100, and setting a correspondence relationship between the adjustment switch and the degree of adjustment of the electromagnetic deformation block 13 to the extrusion deformation of the adjustment lens 12;

S300: detecting a change of the adjustment switch;

S400: adjusting the extrusion deformation of the adjustment lens 12 according to the change of the adjustment switch and the corresponding relationship between the adjustment switch and the degree of adjustment of the electromagnetic deformation block 13 to the extrusion deformation of the adjustment lens 12, Thereby, the focal length of the zoom camera module 100 is adjusted.

In the method of using the zoom camera module 100 of the present invention, the focus adjustment of the zoom camera module 100 is realized by setting an adjustment switch that controls the electromagnetic pressing block 13 to press and deform the adjustment lens 12 in the zoom camera module 100. Correlating the adjustment switch with the degree of adjustment of the extrusion deformation of the adjustment lens 12 by the electromagnetic pressing block 13, setting a correspondence relationship, and controlling the electromagnetic pressing block 13 to the adjustment lens 12 by controlling the adjustment switch The degree of adjustment of the extrusion deformation adjusts the extrusion deformation of the adjustment lens 12 to adjust the focal length of the zoom camera module 100.

It can be understood that the adjustment switch can be designed as a physical switch, a touch switch or only some specific gestures on the smart phone, and the adjustment switch can be an existing or new physical switch, physical button, entity on the smart phone. Buttons, physical rotation keys, and other forms, can also be various forms of touch switches, touch buttons, etc. in the corresponding application on the smart phone, or can be long-pressed on the screen of the smart phone, long-pressed, long-sliding, etc. Gestures do not limit the specific form of the adjustment switch.

Referring to FIG. 3, in a preferred embodiment, S200: setting an adjustment switch of the zoom camera module 100, and setting an extrusion deformation of the adjustment switch and the electromagnetic pressing block 13 to the adjustment lens 12. The steps of the correspondence of the degree of adjustment include:

S210: setting a correspondence relationship between a driving current of the zoom camera module 100 and an adjustment degree of the electromagnetic pressing block 13 to the extrusion deformation of the adjustment lens 12;

S220: setting a correspondence between the adjustment switch and a driving current of the zoom camera module 100, thereby adjusting an adjustment of the pressing deformation of the adjustment lens 12 by the adjustment switch and the electromagnetic pressing block 13. Correspondence of degree.

Correlating the adjustment switch with the degree of adjustment of the extrusion deformation of the adjustment lens 12 by the electromagnetic pressing block 13, and setting a corresponding relationship, specifically, the driving current of the adjustment switch and the zoom camera module 100 And/or a driving voltage or the like, and the driving current and/or the driving voltage of the zoom camera module 100 controls the degree of adjustment of the pressing deformation of the adjusting lens 12 by the electromagnetic pressing block 13, thereby adjusting the switch The degree of adjustment of the extrusion deformation of the adjustment lens 12 by the electromagnetic pressing block 13 is associated.

Referring to FIG. 4, in a preferred embodiment, the method of using further includes the following steps:

Setting a deformation threshold in the zoom camera module 100;

Detecting an extrusion deformation of the adjustment lens 12;

Comparing the extrusion deformation of the adjustment lens 12 with the deformation threshold;

When the pressing deformation of the adjustment lens 12 exceeds the deformation threshold, the adjustment of the extrusion deformation of the adjustment lens 12 by the electromagnetic pressing block 13 is stopped.

In order to prevent the electromagnetic pressing block 13 from being squeezed by the adjusting lens 12 beyond a certain limit, causing damage to the adjusting lens 12 and the zoom camera module 100, in the zoom camera module 100, a deformation threshold is set. When the pressing of the adjustment lens 12 by the electromagnetic pressing block 13 causes the pressing deformation of the adjustment lens 12 to exceed the deformation threshold, the adjustment of the extrusion deformation of the adjustment lens 12 by the electromagnetic pressing block 13 is stopped, and the electromagnetic pressing block 13 is pressed. The pressing of the adjusting lens 12 is restored to a reasonable limit and maintained within the reasonable limit, and the pressing of the adjusting lens 12 by the electromagnetic pressing block 13 can also be stopped, and the electromagnetic pressing block 13 is released to the adjusting lens 12. pressure.

Referring to FIG. 5, in a preferred embodiment, the method of using further includes the following steps:

Setting a first time threshold in the zoom camera module 100;

Detecting a cumulative time when the zoom camera module 100 is turned on;

Comparing the accumulated time when the zoom camera module 100 is turned on with the first time threshold;

When the accumulated time of the zoom camera module 100 is turned on exceeds the first time threshold, the zoom camera module 100 is turned off.

According to the usage method provided by the present invention, a judgment condition can be set, and when the judgment condition is satisfied, the zoom camera module 100 is automatically turned off to save power, which is advantageous for extending the life time of the smartphone. For example, the determination condition may be designed to be a certain time, for example, the first time threshold may be 2 minutes. When it is detected that the zoom camera module 100 has been turned on for more than 2 minutes, the zoom camera module 100 is automatically turned off; The condition is designed such that the smart phone is in the off-screen state, and the zoom camera module 100 is automatically turned off when it is detected that the smart phone automatically turns off the screen or manually locks the screen. On this basis, the judgment condition can be turned on or off in the smartphone.

Referring to FIG. 6, in a preferred embodiment, the method of using the method further includes the following steps:

Setting a second time threshold in the zoom camera module 100;

After detecting that the zoom camera module 100 is turned on, the electromagnetic pressing block 13 generates a pressing time for pressing the adjusting lens 12;

Comparing the pressing time of the electromagnetic pressing block 13 to the pressing deformation of the adjusting lens 12 and the second time threshold;

When the pressing time of the electromagnetic pressing block 13 to the extrusion deformation of the adjustment lens 12 exceeds the second time threshold, the pressing of the adjustment lens 12 by the electromagnetic pressing block 13 is stopped.

The use method provided by the present invention prevents the electromagnetic pressing block 13 from being pressed against the adjustment lens 12 for more than a certain time, causing damage to the adjustment lens 12 and the zoom camera module 100, and is within the zoom camera module 100. And setting a second time threshold, when the electromagnetic pressing block 13 causes the pressing of the adjusting lens 12 to cause the pressing deformation of the adjusting lens 12 to exceed the second time threshold, stopping the electromagnetic pressing block 13 to adjust the lens The adjustment of the extrusion deformation of 12 restores the pressing of the electromagnetic pressing block 13 to the adjustment lens 12 to a reasonable limit and is maintained within the reasonable limit, and the electromagnetic pressing block 13 can also be stopped for the adjustment lens 12. The pressure is released by the electromagnetic pressing block 13 to adjust the pressure of the lens 12.

It should be noted that the embodiments of the present invention are preferred embodiments, and are not intended to limit the scope of the present invention. Any one skilled in the art may use the above-disclosed technical contents to change or modify the equivalent embodiments. Any modification or equivalent changes and modifications of the above embodiments in accordance with the technical spirit of the present invention are still within the scope of the technical solutions of the present invention.

Claims

A zoom camera module of a smart terminal, characterized in that

The zoom camera module includes: a fixed focus lens, an adjustment lens, and an electromagnetic extrusion block;

The adjusting lens is disposed on both sides of the fixed focus lens, and can be pressed and deformed under the extrusion of the electromagnetic pressing block;

The electromagnetic pressing block is disposed between the fixed focus lens and the adjusting lens for pressing the adjusting lens, adjusting an extrusion deformation of the adjusting lens, thereby adjusting the zoom camera module focal length.
The zoom camera module according to claim 1, wherein

The thickness of the adjustment lens is smaller than the thickness of the fixed focus lens.
The zoom camera module according to claim 1, wherein

The electromagnetic pressing block is evenly disposed between the fixed focus lens and the adjustment lens.
The zoom camera module according to claim 1, wherein

An accommodation space is formed between the fixed focus lens and the adjustment lens, and the accommodation space accommodates the electromagnetic extrusion block.
The zoom camera module according to claim 4, wherein

The electromagnetic pressing block is four;

The fixed focus lens is respectively formed with an accommodation space at four end points corresponding to the adjustment lens, and the accommodation space accommodates the electromagnetic extrusion block.
A method of using a zoom camera module according to claim 1, wherein

The method of use includes the following steps:

Turning on the zoom camera module of the smart terminal;

Setting an adjustment switch of the zoom camera module, and setting a correspondence relationship between the adjustment switch and an adjustment degree of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens;

Detecting a change in the adjustment switch;

Adjusting the zoom deformation of the adjustment lens according to a change of the adjustment switch and a corresponding relationship between the adjustment switch and an adjustment degree of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens, thereby adjusting the zoom The focal length of the camera module.
A method of using a zoom camera module according to claim 6, wherein

Setting the adjustment switch of the zoom camera module, and setting a correspondence relationship between the adjustment switch and the degree of adjustment of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens includes:

Corresponding relationship between a driving current of the zoom camera module and an adjustment degree of the electromagnetic pressing block to the extrusion deformation of the adjusting lens;

Corresponding relationship between the adjustment switch and the driving current of the zoom camera module is set, thereby setting a correspondence relationship between the adjustment switch and the degree of adjustment of the electromagnetic extrusion block to the extrusion deformation of the adjustment lens.
A method of using a zoom camera module according to claim 6, wherein

The method of using further includes the following steps:

Setting a deformation threshold in the zoom camera module;

Detecting an extrusion deformation of the adjustment lens;

Comparing the extrusion deformation of the adjustment lens with the deformation threshold;

When the extrusion deformation of the adjustment lens exceeds the deformation threshold, the adjustment of the extrusion deformation of the adjustment lens by the electromagnetic extrusion block is stopped.
A method of using a zoom camera module according to claim 6, wherein

The method of using further includes the following steps:

Setting a first time threshold in the zoom camera module;

Detecting a cumulative time when the zoom camera module is turned on;

Comparing the accumulated time of the zoom camera module to the first time threshold;

When the accumulated time of the zoom camera module is turned on exceeds the first time threshold, the zoom camera module is turned off.
A method of using a zoom camera module according to claim 6, wherein

The method of using further includes the following steps:

Setting a second time threshold in the zoom camera module;

After detecting that the zoom camera module is turned on, the electromagnetic pressing block generates a pressing time for pressing the adjusting lens;

Comparing a pressing time of the electromagnetic pressing block to the pressing deformation of the adjusting lens and the second time threshold;

When the pressing time of the electromagnetic pressing block to the extrusion deformation of the adjustment lens exceeds the second time threshold, the pressing of the adjustment lens by the electromagnetic pressing block is stopped.