WO2019071478A1 - Module de caméra à zoom de terminal intelligent et son procédé d'utilisation - Google Patents

Module de caméra à zoom de terminal intelligent et son procédé d'utilisation Download PDF

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Publication number
WO2019071478A1
WO2019071478A1 PCT/CN2017/105748 CN2017105748W WO2019071478A1 WO 2019071478 A1 WO2019071478 A1 WO 2019071478A1 CN 2017105748 W CN2017105748 W CN 2017105748W WO 2019071478 A1 WO2019071478 A1 WO 2019071478A1
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WO
WIPO (PCT)
Prior art keywords
lens
camera module
adjustment
zoom camera
electromagnetic
Prior art date
Application number
PCT/CN2017/105748
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English (en)
Chinese (zh)
Inventor
江小坤
Original Assignee
深圳传音通讯有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳传音通讯有限公司 filed Critical 深圳传音通讯有限公司
Priority to CN201780095913.8A priority Critical patent/CN111213360B/zh
Priority to PCT/CN2017/105748 priority patent/WO2019071478A1/fr
Publication of WO2019071478A1 publication Critical patent/WO2019071478A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof

Definitions

  • 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.
  • 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 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 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:
  • 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.
  • 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.
  • the thickness of the adjustment lens is smaller than the thickness of the fixed focus lens.
  • the electromagnetic pressing block is evenly disposed between the fixed focus lens and the adjustment lens.
  • an accommodation space is formed between the fixed focus lens and the adjustment lens, and the accommodation space accommodates the electromagnetic extrusion block.
  • 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.
  • a method of using the zoom camera module includes the following steps:
  • 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.
  • the method of using further comprises the following steps:
  • the method of using further comprises the following steps:
  • the method of using further comprises the following steps:
  • the electromagnetic pressing block After detecting that the zoom camera module is turned on, the electromagnetic pressing block generates a pressing time for pressing the adjusting lens;
  • 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.
  • 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.
  • the adjusting deformation of the lens adjusts a focal length of the zoom camera module.
  • FIG. 2 is a flow chart showing a method of using a zoom camera module in accordance with a preferred embodiment of the present invention
  • FIG. 3 is a schematic flow chart of a step of setting a regulating switch in the method of using FIG. 2;
  • FIG. 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.
  • 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.
  • 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.
  • the words "when” can be interpreted as “when” or “when” or “in response to a determination” as used herein.
  • 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.
  • 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.
  • PDA personal Mobile terminals such as digital assistants
  • PADs tablets
  • PMPs portable multimedia players
  • navigation devices smart watches, and the like
  • fixed terminals such as digital TVs, desktop computers, and the like.
  • the present invention will be described assuming that the terminal is a mobile terminal and assuming that the mobile terminal is a smart phone.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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.
  • DSP for CCD
  • sensor for CCD
  • 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.
  • 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.
  • 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.
  • the aperture also has the function of controlling the depth of field.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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".
  • DSP 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.
  • CMOS complementary metal-oxide-semiconductor
  • the CMOS is small compared to the CCD, the price is low, and the output is high.
  • the gap between image quality and CCD has been very small, and the performance on high frame rate video is better than CCD.
  • the present invention also discloses a method for using the zoom camera module 100, which includes the following steps:
  • 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.
  • 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.
  • 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.
  • the adjustment switch 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.
  • the method of using further includes the following steps:
  • a deformation threshold is set.
  • 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.
  • the method of using further includes the following steps:
  • the zoom camera module 100 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.
  • 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.
  • the determination condition may be designed to be a certain time, for example, the first time threshold may be 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.
  • the judgment condition can be turned on or off in the smartphone.
  • the method of using the method further includes the following steps:
  • the electromagnetic pressing block 13 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;
  • 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.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Studio Devices (AREA)
  • Lens Barrels (AREA)

Abstract

La présente invention concerne un module de caméra à zoom de terminal intelligent et son procédé d'utilisation, le module de caméra à zoom de terminal intelligent comprenant: une lentille de mise au point fixe, des lentilles ajustables et un bloc d'extrusion électromagnétique; les lentilles ajustables sont disposées sur deux côtés de la lentille de mise au point fixe, et peuvent produire une déformation par extrusion sous la pression d'extrusion du bloc d'extrusion électromagnétique; le bloc d'extrusion électromagnétique est disposé entre la lentille de focalisation fixe et les lentilles ajustables et est utilisé pour extruder les lentilles ajustables et ajuster la déformation d'extrusion des lentilles ajustables, ce qui permet d'ajuster la longueur focale du module de caméra à zoom. Le module de caméra à zoom dans la solution technique de la présente invention est petit et peu coûteux, a une structure simple, et atteint facilement un zoom optique sans avoir besoin d'un mécanisme télescopique complexe, d'un algorithme de synthèse ou d'une lentille externe.
PCT/CN2017/105748 2017-10-11 2017-10-11 Module de caméra à zoom de terminal intelligent et son procédé d'utilisation WO2019071478A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780095913.8A CN111213360B (zh) 2017-10-11 2017-10-11 一种智能终端的变焦摄像模组及其使用方法
PCT/CN2017/105748 WO2019071478A1 (fr) 2017-10-11 2017-10-11 Module de caméra à zoom de terminal intelligent et son procédé d'utilisation

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PCT/CN2017/105748 WO2019071478A1 (fr) 2017-10-11 2017-10-11 Module de caméra à zoom de terminal intelligent et son procédé d'utilisation

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CN114764188A (zh) * 2021-01-09 2022-07-19 广东小天才科技有限公司 外挂式显微镜及智能终端
CN114815216A (zh) * 2021-01-09 2022-07-29 广东小天才科技有限公司 外挂式显微镜及智能终端
CN115166963A (zh) * 2021-04-02 2022-10-11 宁波舜宇光电信息有限公司 可变焦光学装置、镜头以及摄像模组

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EP1265091A2 (fr) * 2001-06-08 2002-12-11 Canon Kabushiki Kaisha Objectif à focale variable et utilisation dans une caméra
CN101384928A (zh) * 2006-02-24 2009-03-11 新加坡科技研究局 在管状外壳中形成可变焦液体透镜的方法
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Publication number Priority date Publication date Assignee Title
CN114764188A (zh) * 2021-01-09 2022-07-19 广东小天才科技有限公司 外挂式显微镜及智能终端
CN114815216A (zh) * 2021-01-09 2022-07-29 广东小天才科技有限公司 外挂式显微镜及智能终端
CN114764188B (zh) * 2021-01-09 2024-05-24 广东小天才科技有限公司 外挂式显微镜及智能终端
CN114815216B (zh) * 2021-01-09 2024-05-28 广东小天才科技有限公司 外挂式显微镜及智能终端
CN115166963A (zh) * 2021-04-02 2022-10-11 宁波舜宇光电信息有限公司 可变焦光学装置、镜头以及摄像模组

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