CN101846783B - Drive method of telescopic mobile phone lens and drive structure thereof - Google Patents
Drive method of telescopic mobile phone lens and drive structure thereof Download PDFInfo
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- CN101846783B CN101846783B CN200910056990A CN200910056990A CN101846783B CN 101846783 B CN101846783 B CN 101846783B CN 200910056990 A CN200910056990 A CN 200910056990A CN 200910056990 A CN200910056990 A CN 200910056990A CN 101846783 B CN101846783 B CN 101846783B
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Abstract
The invention discloses a drive method of a telescopic mobile phone lens. In the method, a driving force is directly applied on a lens surface of the telescopic lens; and by changing the air pressure at one end of the telescopic lens, a differential pressure is generated at the two ends of the lens to form the driving force of the lens so as to push the lens to move towards the direction with small air pressure to achieve expansion of the lens. In the invention, the defects of other drive methods are overcome due to a simple structure, but a control circuit is more complicated than the control circuit used in the other drive methods. The drive method of the invention is applicable to civil products such as the mobile phone lens and the like with the requirements of short, small, light and thin structure and low cost of the telescopic lens. Meanwhile, the invention further discloses a drive structure of the telescopic mobile phone lens.
Description
Technical field
The present invention relates to a kind of driving method of telescopic mobile phone lens.The invention still further relates to a kind of Drive Structure of telescopic mobile phone lens.
Background technology
Along with the fast development of mechanics of communication, people are more and more to the requirement of mobile phone cam, and not only the picture element requirement is increasingly high, but also require mobile phone cam to possess the function of focusing and zoom.Over past ten years, the mobile phone industry in the whole world has dropped into countless research and development expenses to the research and development of this respect, and the driving of mobile lens has been proposed a lot of methods.For example, adopt voice coil motor to drive, the characteristics of this method are technology maturations, and are simple in structure, but mainly rely on electromagnetic force to keep the position of camera lens, can generate heat during use, and compare other modes, poor impact resistance.Other has the driving method of stepper motor+connecting rod+gear, the position that this method can not rely on electromagnetic force to keep camera lens, but size is bigger, and complex structure has mechanical loss, and expensive.Adopt piezo-electric motor to make the flexible driving method of camera lens in addition, this is to be the novel motor of exciting element with the piezoelectric ceramics.It utilizes the inverse piezoelectric effect of piezoelectric ceramics to produce high-frequency mechanical vibration, directly drives through the friction force between stator and rotor.It has simple in structure, response rapidly, the location accurately, energy density is big, advantages such as low-speed big.But need apply usually in the use of piezo-electric motor one the road or several roads ultrasonic frequency under sine or square wave voltage signal drive, therefore need the special-purpose supporting use of driving power.This falls from favor in the mobile phone industry that cost compresses day by day.All these driving methods, its common ground all are that driving force is acted on the lens barrel of fixed lens.In addition, also there is a fatal weakness in the driving method of these mobile lens, and that is exactly the restriction that stroke receives the size of mechanism own.
It is unrestricted how to work out stroke, with low cost, and power consumption is little, and the driving method of mobile lens that again can antidetonation is the difficult problem that international in recent years mobile phone industry is explored always.
Summary of the invention
The technical matters that the present invention will solve provides a kind of driving method of telescopic mobile phone lens, and it can reduce the manufacturing cost of concertina type mobile phone cam module, reduces the complexity of production and the technical difficulty of production, improves the stroke of camera module.
For solving the problems of the technologies described above, telescopic mobile phone lens of the present invention adopts the gas-powered method, comprises the steps:
Step 1 acts directly on driving force on the lens face of the first side of an arrangement of mirrors in the said mobile lens that will stretch;
Step 2 changes the air pressure of said mobile lens one end, makes said mobile lens two ends produce pressure reduction;
Step 3, said pressure reduction forms driving force on said lens face, and the lens that promote said mobile lens drive the lens barrel of fixing said lens and move to the direction that air pressure is reduced, and realize the flexible of said mobile lens.
The invention also discloses a kind of telescopic mobile phone lens Drive Structure; At least be provided with the cavity that one one end is a side surface of the set of shots in the said mobile lens in the mobile lens; The sidewall of said cavity is provided with a through hole at least as gas passage; Said cavity is provided with an air pressure modifier outward at least; Said air pressure modifier is connected with said cavity through said through hole, also be provided with at least between said air pressure modifier and the said cavity one be used to control gas flow between said air pressure modifier and the said cavity valve.
The invention also discloses a kind of telescopic mobile phone lens structure Drive Structure, mobile lens comprises lens barrel, is provided with the telescopic lens group that two groups of relative motions meet the zoom lens rule in the lens barrel at least;
One cavity is formed on the bottom of lens group and lens barrel; Perhaps the sidewall of two lens group and lens barrel is formed a cavity; The sidewall of cavity is provided with a through hole; Through hole is connected to an air pump through first valve, utilizes the air pressure modifier cavity is inflated or to be bled and stretch to promote telescopic lens group.
The driving method of telescopic mobile phone lens of the present invention; Adopted the method that camera lens is directly puted forth effort; Make the air pressure that acts on the lens group two ends produce pressure reduction to form driving force through changing air pressure in the air cavity, thereby promote the flexible of direction motion realization mobile lens that lens group reduces to air pressure.This driving method and other different places of mobile lens driving method are: this driving method directly is loaded into driving force on the camera lens, rather than the driving force of additive method is added on the lens barrel.This driving method is provided with a cavity at least in mobile lens inside; Utilizing the air pressure modifier cavity to be inflated or bled changes the air pressure in the cavity; Act on the power out of trim at camera lens two ends and produce the flexible driving force of camera lens, impel stretching out or withdrawing of retractable lens group, realized simple in structure; Manufacturing cost, the driving of the telescopic mobile phone lens of big stroke.The present invention has also utilized the friction force that exists between the lens barrel, realizes the position and lock of inflating the back or bleeding the back lens barrel.Because adopted the structure of air pressure modifier and friction force braking, physical construction is simpler than the type of drive of stepper motor+connecting rod+gear, cost is lower; Adopted friction catch, made back, location air pump to quit work, and do not resembled the position that will rely on electromagnetic force to keep camera lens the voice coil motor, thereby can not generate heat, power consumption is also lower.And with the piezo-electric motor ratio, air pump can adopt the reference power supply on the mobile phone, and need not mate driving power specially.At last, the driving method of this mobile lens does not have travel limits, and a whole set of structure can fully satisfy the short and small and frivolous characteristics that require in the mobile phone.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed explanation:
Fig. 1 is Drive Structure one embodiment of telescopic mobile phone lens of the present invention;
Fig. 2 is another embodiment of the Drive Structure of telescopic mobile phone lens of the present invention;
Fig. 3 is the 3rd embodiment of the Drive Structure of telescopic mobile phone lens of the present invention.
Embodiment
Consider the characteristics that mobile lens itself is very light, the invention discloses a kind of driving method of telescopic mobile phone lens, comprise the steps:
Step 1 acts directly on driving force on the lens face of the first side of an arrangement of mirrors in the said mobile lens that will stretch;
Step 2 changes the air pressure of said mobile lens one end, makes said mobile lens two ends produce pressure reduction;
Step 3, said pressure reduction forms driving force on said lens face, and the lens that promote said mobile lens drive the lens barrel of fixing said lens and move to the direction that air pressure is reduced, and realize the flexible of said mobile lens.
According to the requirement of above-mentioned driving method, driving method of the present invention further can be and is provided with a cavity in the said mobile lens at least, and said cavity is connected with an air pressure modifier through at least one gas passage;
When said mobile lens requires when protruding, said air pressure modifier makes the air pressure of the air pressure of said mobile lens and said cavity contact jaw greater than the said mobile lens other end, and said mobile lens is stretched out;
When said mobile lens required inwardly to shrink, said air pressure modifier made the air pressure of the air pressure of said mobile lens and said cavity contact jaw less than the said mobile lens other end, made said mobile lens retraction.
Gas in the above-mentioned cavity is generally air, and the air pressure modifier can be air pump or gas tank.And the cavity in the mobile lens can be the side by a set of shots in the mobile lens, and the urceolus bottom surface of mobile lens and the urceolus side of mobile lens surround.This cavity also can be provided with through following mode: the upper and lower surfaces of cavity is made up of the lens face of two set of shots in the said mobile lens respectively, and the side of cavity is surrounded by the side of the lens barrel of mobile lens.
Telescopic mobile phone lens Drive Structure of the present invention according to above-mentioned driving method preparation; In mobile lens, be provided with the cavity that one one end is a side surface of the set of shots in the mobile lens at least; The sidewall of cavity is provided with a through hole as gas passage; Cavity is outside equipped with an air pump, and air pump is connected with cavity through through hole, also be provided with between air pump and the cavity one be used to control gas flow between air pump and the cavity valve.Wherein air pump is inflated cavity under the effect of control circuit or is bled and stretch to promote mobile lens.
The following (see figure 1) of structrual description of a concrete concertina type mobile phone cam module of the present invention:
Mobile lens comprises lens barrel 210; At least be provided with telescopic lens group 110 and lens group 111 that two groups of relative motions meet the zoom lens rule in the lens barrel, the relative motion of (promptly belonging between the lens of this lens group) also meets the rule of zoom lens between the lens in the lens group 110; The lower end of the one side of retractable lens group and said lens barrel 210 (can be designed to base shape) forms a cavity 440 (also can be provided with cavity between two lens group; See Fig. 2; Between lens group 111 and lens group 112); The sidewall of cavity 440 is provided with a through hole 430 (also can perforate between barrel, do not illustrate among the figure), through through hole 430 cavity 440 is connected with air pump; Between through hole 430 and air pump, can establish first valve 410, utilize air pump cavity is inflated or to be bled and stretch to promote the retractable lens group.Surface of contact between retractable lens arrangement of mirrors tube can be the surface with pre-set friction force, like this after air pump quits work, can make telescopic lens cone utilize the friction force of two walls to position and fixing.
Air pump in the foregoing description can further comprise an air pump body 510; Side near first valve 410 on the air pump body is provided with second valve 420; Be provided with the relatively-movable magnet 520 that is complementary with air pump body inwall in the air pump body; The external hot-wire coil 530 that is wound with of air pump, the hot-wire coil two ends are connected to control module 610.
The course of work of above-mentioned telescopic mobile phone lens is described below.
The process that mobile lens stretches out: the gas replenishment process of air pump body before this; When magnet 520 is positioned at the position near first valve 410; Through control circuit 610 second valve 420 is opened; This moment first valve 410 closures; Hot-wire coil 530 is coupled with and makes magnet 520 towards the electric current that moves away from the direction of said first valve 410 simultaneously, and towards the direction motion away from said first valve 410, gas is inhaled in the air pump body 510 until second valve closes through second valve 420 magnet 520 in this process under the effect of hot-wire coil 530; Then be the pump gas process of air pump body; After in air pump body 510, being full of air; First valve 410 is opened, and hot-wire coil 530 is coupled with and makes the electric current of magnet towards the direction motion of said first valve 410 simultaneously, and said magnet 520 moves towards first valve 410 under the effect of hot-wire coil 530; Gas in the air pump body 510 is compressed in the said cavity 440 through first valve 410 in this course, and it is protruding that the gas pressure intensity that increases in the cavity promotes said retractable lens group;
The withdrawal process of mobile lens is: the exhaust process of air pump body 510 before this; When said magnet 520 away from the position of said first valve 410 time; Said first valve, 410 closures; Second valve 420 is opened; Hot-wire coil 530 adds and makes the electric current of said magnet towards said second valve direction motion simultaneously, and towards said second valve, 420 directions motion, the gas in this process in the air pump body 510 enters in the external world until said second valve closes through said second valve 420 said magnet 520 under the effect of said hot-wire coil 530; Then be the process of bleeding of air pump body: after the gas in the air pump body 510 is discharged; Said magnet 520 is near the position of said first valve 410; Open said first valve 410 this moment; Hot-wire coil 530 adds and makes said magnet towards the electric current away from said first valve direction motion simultaneously; Said magnet 520 under the effect of hot-wire coil towards away from the motion of the direction of said first valve, in this process with the gas cavity 440 in through in the said air pump body 510 of the said first valve suction, the gas pressure intensity of the interior reduction of cavity attracts said retractable lens group inwardly to shrink.
Fig. 3 is the third embodiment of the present invention; Aerating device among this embodiment can further comprise an inflator pump 510; Side near first valve 410 on inflator pump is provided with second valve 420; Be provided with the relatively-movable magnet 520 that is complementary with the inflator pump inwall in the inflator pump, inflator pump is wound with hot-wire coil 530 outward, and the hot-wire coil two ends are connected to control module 610; And a gas tank 511, one control circuits 620, through the passage 431 on the 3rd valve 411 and the cavity, realization is connected with the camera lens cavity.Wherein control circuit 620 is realized the switch control to the 3rd valve.
Embodiment shown in Figure 3 compares with embodiment shown in Figure 2, has increased gas tank 511 and relevant the 3rd valve 411 and cavity lane 431 and control circuit 620 parts thereof.In the withdrawal process of camera lens with Fig. 2 in embodiment identical, difference has been to utilize gas tank 511 to realize the function of stretching out of camera lenses.
The process that its mobile lens stretches out is specific as follows:
Store anticyclonic gas in the gas tank 511; When control circuit 620 is opened described the 3rd valve 411; Because said gas tank 511 internal gas pressures are greater than said cavity 440 internal gas pressures; Gas is pressed in the cavity 440 through through hole 431 in the gas tank 511, has increased the pressure in the camera lens cavity 440, and it is protruding to promote said retractable lens group; Realize the function that mobile lens stretches out.
The telescopic mobile phone lens of the invention described above utilizes control circuit that air pump is inflated the cavity in the camera lens, pump gas, and exhaust and bleeding realizes the flexible of mobile lens, and realizes position and lock through the friction force that exists between the lens barrel.Because adopted the structure of air pump and friction force braking, physical construction is simpler than the type of drive of stepper motor+connecting rod+gear, cost is lower; Adopted friction catch, made back, location air pump to quit work, and do not resembled the position that will rely on electromagnetic force to keep camera lens the voice coil motor, thereby can not generate heat, power consumption is also lower.With the piezo-electric motor ratio, air pump can adopt the reference power supply on the mobile phone, and need not mate driving power specially.At last, the driving method of this mobile lens does not have travel limits.Short and small, frivolous characteristics that a whole set of structure satisfies mobile phone.
Certainly; The present invention also can have other various embodiments; Under the situation that does not deviate from spirit of the present invention and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of claim of the present invention.
Claims (2)
1. the driving method of a telescopic mobile phone lens; Be used to drive the flexible of said mobile lens; It is characterized in that: the said mobile lens of employing comprises lens barrel, is provided with the telescopic lens group that two groups of relative motions meet the zoom lens rule in the said lens barrel at least;
One cavity is formed on the bottom of said lens group and said lens barrel, and perhaps the sidewall of two lens group and said lens barrel is formed a cavity; The sidewall of said cavity is provided with a through hole at least, and said through hole is connected to an air pressure modifier through first valve, utilizes the air pressure modifier cavity is inflated or to be bled and stretch to promote telescopic lens group; Said lens group produces flexible device in said lens barrel, sliding;
Said air pressure modifier comprises an air pump body, and the side near said first valve on said air pump body is provided with second valve, is provided with the magnet that can move relative to living that is complementary with air pump body inwall in the said air pump body; The external coil that is wound with of said air pump, after the energising, magnet can move in the magnetic field that coil produces; Said coil two ends are connected to control module, the size and Orientation of electric current in the control coil;
The process that said mobile lens stretches out is: the gas replenishment process of air pump body before this; When magnet is positioned at the position near first valve; Through control circuit with second valve open, this moment first valve closes, simultaneously hot-wire coil is coupled with and makes magnet towards the electric current away from the direction motion of said first valve; Towards the direction motion away from said first valve, gas is inhaled in the air pump body until second valve closes through second valve magnet in this process under the effect of hot-wire coil; Then be the pump gas process of air pump body; After in the air pump body, being full of air; With first valve open, simultaneously hot-wire coil is coupled with and makes the electric current of magnet towards the direction motion of said first valve, said magnet under the effect of hot-wire coil towards first valve motion; Gas in the air pump body is compressed in the said cavity through first valve in this course, and it is protruding that the gas pressure intensity that increases in the cavity promotes said retractable lens group;
The withdrawal process of said mobile lens is: the exhaust process of air pump body before this; When said magnet away from the position of said first valve time; Said first valve closes; Second valve open; Hot-wire coil adds and makes the electric current of said magnet towards said second valve direction motion simultaneously, and towards said second valve direction motion, the gas in this process in the air pump body enters in the external world until said second valve closes through said second valve said magnet under the effect of said hot-wire coil; Then be the process of bleeding of air pump body: after the gas in the air pump body is discharged; Said magnet is near the position of said first valve; Open said first valve this moment; Hot-wire coil adds and makes said magnet towards the electric current away from said first valve direction motion simultaneously; Said magnet under the effect of hot-wire coil towards away from the motion of the direction of said first valve, in this process with the gas in the cavity through in the said air pump body of the said first valve suction, the gas pressure intensity of reduction attracts said retractable lens group inwardly to shrink in the cavity;
The driving method of telescopic mobile phone lens comprises the steps:
Step 1 acts directly on driving force on the lens face of the said mobile lens that will stretch; This driving force is produced by the draught head of air pressure in the said cavity and said mobile lens outside;
Step 2 is inflated said cavity or is bled and change the air pressure in the said cavity through said air pressure modifier; After changing the air pressure in the said cavity, can between said cavity and said mobile lens outside, produce pressure reduction;
Step 3, said pressure reduction can form driving force on the lens face of the said lens group of forming said cavity, and the said lens group that promotes said mobile lens is slided to the low direction of air pressure in said lens barrel, realizes the flexible of said mobile lens.
2. telescopic mobile phone lens Drive Structure is characterized in that:
Said mobile lens comprises lens barrel, is provided with the telescopic lens group that two groups of relative motions meet the zoom lens rule in the said lens barrel at least;
One cavity is formed on the bottom of said lens group and said lens barrel; Perhaps the sidewall of two lens group and said lens barrel is formed a cavity; The sidewall of said cavity is provided with a through hole at least; Said through hole is connected to an air pressure modifier through first valve, utilizes the air pressure modifier cavity is inflated or to be bled and stretch to promote telescopic lens group; Said lens group produces flexible device in said lens barrel, sliding;
Said air pressure modifier comprises an air pump body, and the side near said first valve on said air pump body is provided with second valve, is provided with the magnet that can move relative to living that is complementary with air pump body inwall in the said air pump body; The external coil that is wound with of said air pump, after the energising, magnet can move in the magnetic field that coil produces; Said coil two ends are connected to control module, the size and Orientation of electric current in the control coil;
The process that said mobile lens stretches out is: the gas replenishment process of air pump body before this; When magnet is positioned at the position near first valve; Through control circuit with second valve open, this moment first valve closes, simultaneously hot-wire coil is coupled with and makes magnet towards the electric current away from the direction motion of said first valve; Towards the direction motion away from said first valve, gas is inhaled in the air pump body until second valve closes through second valve magnet in this process under the effect of hot-wire coil; Then be the pump gas process of air pump body; After in the air pump body, being full of air; With first valve open, simultaneously hot-wire coil is coupled with and makes the electric current of magnet towards the direction motion of said first valve, said magnet under the effect of hot-wire coil towards first valve motion; Gas in the air pump body is compressed in the said cavity through first valve in this course, and it is protruding that the gas pressure intensity that increases in the cavity promotes said retractable lens group;
The withdrawal process of said mobile lens is: the exhaust process of air pump body before this; When said magnet away from the position of said first valve time; Said first valve closes; Second valve open; Hot-wire coil adds and makes the electric current of said magnet towards said second valve direction motion simultaneously, and towards said second valve direction motion, the gas in this process in the air pump body enters in the external world until said second valve closes through said second valve said magnet under the effect of said hot-wire coil; Then be the process of bleeding of air pump body: after the gas in the air pump body is discharged; Said magnet is near the position of said first valve; Open said first valve this moment; Hot-wire coil adds and makes said magnet towards the electric current away from said first valve direction motion simultaneously; Said magnet under the effect of hot-wire coil towards away from the motion of the direction of said first valve, in this process with the gas in the cavity through in the said air pump body of the said first valve suction, the gas pressure intensity of reduction attracts said retractable lens group inwardly to shrink in the cavity.
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| CN200910056990A CN101846783B (en) | 2009-03-26 | 2009-03-26 | Drive method of telescopic mobile phone lens and drive structure thereof |
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| CN200910056990A CN101846783B (en) | 2009-03-26 | 2009-03-26 | Drive method of telescopic mobile phone lens and drive structure thereof |
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| CN101726827B (en) * | 2009-12-16 | 2012-05-30 | 格科微电子（上海）有限公司 | Driving method of zoomer lens device |
| CN103345034A (en) * | 2013-07-08 | 2013-10-09 | 谢虹 | Mobile phone lens amplifier |
| CN103345108A (en) * | 2013-07-08 | 2013-10-09 | 谢虹 | Mobile phone lens amplifier |
| CN103347109A (en) * | 2013-07-08 | 2013-10-09 | 谢虹 | Mobile phone lens amplifier |
| CN106331470A (en) * | 2015-07-03 | 2017-01-11 | 中兴通讯股份有限公司 | Photographing terminal and photographing method |
| CN109995907B (en) * | 2017-12-29 | 2020-12-22 | Oppo广东移动通信有限公司 | Functional module, electronic device and control method of electronic device |
| CN110086962B (en) * | 2018-01-26 | 2021-01-22 | 宏碁股份有限公司 | Portable electronic device |
| CN109143425B (en) * | 2018-09-27 | 2020-10-09 | 杭州行开科技有限公司 | Micro-lens array structure for collecting light field image |
| CN111596854B (en) * | 2020-04-07 | 2021-07-23 | 维沃移动通信有限公司 | Electronic equipment state determination method and device and electronic equipment |
| CN113791485B (en) * | 2020-05-25 | 2022-11-11 | 华为技术有限公司 | Camera module and electronic equipment |
| CN112984416B (en) * | 2021-03-08 | 2023-01-13 | 江门市柏曼照明科技有限公司 | LED lamp with concentrate leaded light function |
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| CN2297169Y (en) * | 1996-06-11 | 1998-11-18 | 甘心照 | Sphygmomanometer controller and sphygmomanometer |
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| CN2297169Y (en) * | 1996-06-11 | 1998-11-18 | 甘心照 | Sphygmomanometer controller and sphygmomanometer |
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