CN103095976B - The MEMS camera of MEMS camera iris control apparatus and application thereof - Google Patents
The MEMS camera of MEMS camera iris control apparatus and application thereof Download PDFInfo
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- CN103095976B CN103095976B CN201310015162.8A CN201310015162A CN103095976B CN 103095976 B CN103095976 B CN 103095976B CN 201310015162 A CN201310015162 A CN 201310015162A CN 103095976 B CN103095976 B CN 103095976B
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Abstract
The invention provides a kind of iris control apparatus of MEMS camera, MEMS camera comprises MEMS motor sub-assembly and camera lens, and configurations of lenses has aperture, and iris control apparatus includes the control of diaphragm part, and this control of diaphragm part is arranged between MEMS motor sub-assembly and camera lens.Wherein, MEMS is MEMS (micro electro mechanical system), in MEMS design, its microstructure is mostly corresponding with associated components and configures, so in MEMS camera, MEMS motor sub-assembly and aperture are for fixing corresponding configuration, make aperture can only obtain the incident light of fixed size, single incident light affects focusing imaging undoubtedly, and the control of diaphragm part in this case, can according to demand to control the size entering the incident light of aperture, thus improve imaging effect, but also effectively avoid need redesigning MEMS because of the cause of incident light, reduce cost budgeting.The present invention also provides a kind of MEMS camera.
Description
Technical field
The present invention relates to camera technical field, particularly relate to a kind of iris control apparatus of MEMS camera and be configured with the MEMS camera of this iris control apparatus.
Background technology
At present, MEMS (micro electro mechanical system) (MEMS), for camera focusing, is a kind of emerging technology in camera technique field.For the design of aperture, after MEMS has designed, its size just secures, therefore its aperture can only obtain fixing incident light, as shown in Figure of description 1, in the figure, MENS motor sub-assembly 20 and camera lens 40 link together, wherein MEMS motor sub-assembly offers the first perforate 21, and camera lens 40 offers the second perforate 41, aperture is arranged in the second perforate 41, when making a video recording, incident light is incident upon aperture through the first perforate 21, second perforate 41, its logical light quantity can not be done to change according to demand, causes focusing imaging single, affects shooting effect.So, if need to obtain different incident lights, according to general design, then the design of MEMS must be changed, so just bring a problem, mainly adopt wafer process because MEMS makes, its design needs six months at the soonest, and the cycle of getting the raw materials ready is long, flexibility extreme difference, affect the listing progress of product undoubtedly, in addition, the redesign of MEMS also increases the cost budgeting of enterprise.
Therefore, be necessary to provide a kind of technological means to address the aforementioned drawbacks.
Summary of the invention
The object of the present invention is to provide a kind of iris control apparatus of MEMS camera and the MEMS camera of application thereof, the problem of fixing incident light can only be obtained with the aperture solved in the MEMS camera of prior art.
For reaching this object, the present invention by the following technical solutions:
A kind of iris control apparatus of MEMS camera, described MEMS camera comprises MEMS motor sub-assembly and camera lens, described configurations of lenses has aperture, described iris control apparatus includes the control of diaphragm part in order to control to enter the size of the incident light of described aperture, and this control of diaphragm part is arranged between described MEMS motor sub-assembly and described camera lens.
As further preferred version, described MEMS motor sub-assembly offers the first perforate passed through for incident light, described camera lens offers the second perforate passed through for incident light, described aperture is installed on described second perforate, and described the control of diaphragm part offers and described first perforate, corresponding the 3rd perforate be communicated with of described second perforate;
Preferably, the hole heart of the hole heart of described first perforate, the hole heart of described second perforate and described 3rd perforate is arranged on same axis;
Preferably, described the control of diaphragm part is a thin slice, and described 3rd perforate is opened in the center of this thin slice;
Preferably, described thin slice is black plastic material or ferrous metal material.
A kind of MEMS camera, comprise MEMS motor sub-assembly, camera lens, fixture, transducer and wiring board, described camera lens is fixed on described fixture, described wiring board is connected with described MEMS motor sub-assembly, described sensor electrical respectively, is provided with said aperture control device between described MEMS motor sub-assembly and described camera lens.
As further preferred version, described transducer is ccd sensor or cmos sensor.
As further preferred version, described fixture is configured with infrared filter.
As further preferred version, described wiring board is Flexible Printed Circuit.
As further preferred version, described MEMS camera also comprises radome, and described radome covers described MEMS motor sub-assembly, described camera lens, described fixture, described transducer and described wiring board successively.
Beneficial effect of the present invention is: wherein, MEMS is MEMS (micro electro mechanical system), in MEMS design, its microstructure is mostly corresponding with associated components and configures, so in MEMS camera, MEMS motor sub-assembly and aperture are for fixing corresponding configuration, make aperture can only obtain the incident light of fixed size, single incident light affects focusing imaging undoubtedly, and the control of diaphragm part in this case, can according to demand to control the size entering the incident light of aperture, thus improve imaging effect, but also effectively avoid need redesigning MEMS because of the cause of incident light, reduce cost budgeting.
Accompanying drawing explanation
Fig. 1 is the exploded view of the MEMS camera of prior art, to show the structural relation between MEMS motor sub-assembly and camera lens;
Fig. 2 is the stereogram of MEMS camera of the present invention, to show its internal structure;
Fig. 3 is the exploded view of Fig. 1, to show that iris control apparatus is installed on the structure between MEMS motor sub-assembly and camera lens;
Fig. 4 is the schematic diagram of the iris control apparatus of MEMS camera of the present invention.
In figure:
10, MEMS camera; 20, MEMS motor sub-assembly; 21, the first perforate; 30, iris control apparatus; 31, the control of diaphragm part; 32, the 3rd perforate; 40, camera lens; 41, the second perforate; 50, fixture; 60, infrared filter; 70, transducer; 80, wiring board; 90, radome.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
Refer to shown in Fig. 3, the invention provides a kind of iris control apparatus 30 of MEMS camera, MEMS camera comprises MEMS motor sub-assembly 20 and camera lens 40, camera lens 40 is configured with aperture, particularly, camera lens 40 is by the device of photographed imaging on transducer 70, and it is made up of several lens usually, in addition, camera lens 40 has the parameter of two outbalances: aperture and focal length.Aperture is mounted in and camera lens 40 controls arrive the how many device of the light of transducer 70 by camera lens 40, except controlling logical light quantity, aperture also has the function controlling the depth of field, and aperture is larger, the depth of field is less, and when clapping portrait, the dim effect of background is exactly the one embodiment of the little depth of field at ordinary times.Iris control apparatus 30 includes the control of diaphragm part 31 in order to control to enter the size of the incident light of aperture, and the control of diaphragm part 31 is arranged between MEMS motor sub-assembly 20 and camera lens 40.In MEMS design, its microstructure is mostly corresponding with associated components and configures, so in MEMS camera, MEMS motor sub-assembly 20 and aperture are for fixing corresponding configuration, make aperture can only obtain the incident light of fixed size, single incident light affects focusing imaging undoubtedly, and the control of diaphragm part 31 in this case, can according to demand to control the size entering the incident light of aperture, thus improve imaging effect, but also effectively avoid need redesigning MEMS because of the cause of incident light, reduce cost budgeting.
Wherein, MEMS is MEMS (micro electro mechanical system), MEMS is the call of the U.S., micromechanics is called as in Japan, micro-system is called as in Europe, it refers to can batch making, integrates micro mechanism, microsensor, micro actuator and signal transacting with control circuit until interface, to communicate and the microdevice of power supply etc. or system.Micro-electromechanical system (MEMS) (Micro-Electro-MechanicalSystems) is a kind of brand-new technology, it must consider the research and development field of multiple physical field immixture simultaneously, relative to traditional machinery, their size is less, maximum is no more than one centimetre, even be only several micron, its thickness is just more small.The microdevice system of the integration that complete MEMS is made up of parts such as microsensor, microactrator, signal transacting and control circuit, communication interface and power supplys, its target is that the acquisition of information, process and execution are integrated, composition has multi-functional microsystem, be integrated in large scale system, thus improve the automation of system, intellectuality and reliability level significantly.
Particularly, MEMS motor sub-assembly 20 offers the first perforate 21 passed through for incident light, camera lens 40 offers the second perforate 41 passed through for incident light, aperture is installed on the second perforate 41, the control of diaphragm part 31 offers and corresponding the 3rd perforate 32 be communicated with of the first perforate 21, second perforate 41, wherein, and offering of the 3rd perforate 32, the aperture of different size can be offered according to the actual requirements, thus make aperture obtain needed for logical light quantity.Preferably, the hole heart of the hole heart of the first perforate 21, the hole heart of the second perforate 41 and the 3rd perforate 32 is arranged on same axis, be specially, MEMS motor sub-assembly 20, between the control of diaphragm part 31 and camera lens 40, there is concentricity, to ensure logical light quantity further, avoid actual enter aperture incident light and theoretical value there is larger deviation.
Refer to shown in Fig. 4, as the preferred embodiment of this case, the control of diaphragm part 31 is a thin slice 31,3rd perforate 32 is opened in the center of this thin slice 31, by adopting thin slice 31, being not only convenient to it and being installed between MEMS motor sub-assembly 20 and camera lens 40, but also being convenient to production and processing.In addition, thin slice 31 is black plastic material or ferrous metal material.Wherein, any object all can receive light, and only their reception ability is different, have have by force weak.White light is made up of 7 kinds of visible rays, different objects about the reception of these 7 kinds of visible rays and reflection condition different, and the ability that general black object receives light is all stronger, the ability of its reflection ray is all more weak, therefore, thin slice 31 selects black plastic material or ferrous metal material, weakens the incident light needing isolation preferably, ensures the focusing imaging of camera.
Refer to shown in Fig. 2 and Fig. 3, the present invention also provides a kind of MEMS camera 10, comprise MEMS motor sub-assembly 20, camera lens 40, fixture 50, transducer 70 and wiring board 80, camera lens 40 is fixed on fixture 50, wiring board 80 is electrically connected with MEMS motor sub-assembly 20, transducer 70 respectively, is provided with said aperture control device 30 between MEMS motor sub-assembly 20 and camera lens 40.
Particularly, transducer 70 is ccd sensor or cmos sensor.Transducer 70, being the core of camera composition, is also the technology of most critical, and it is that a kind of being used for receives the light by camera lens, and these light signals is converted into the device of the signal of telecommunication.And ccd sensor and cmos sensor are common camera sensing device, both are in difference: the advantage of CCD is good imaging quality, but due to manufacturing process complexity, the manufacturer of minority is only had to grasp, so cause manufacturing cost to remain high, particularly large-scale CCD, price is very high.Under equal resolution, CMOS cost ratio CCD is cheap, but to compare CCD lower for the picture quality that cmos device produces.Relative to ccd sensor, one of advantage of CMOS is that power consumption is lower than CCD, and CCD is for providing excellent image quality, namely pay a price is higher power consumption, for making transferring charge smooth and easy, noise reduction, need improve laser propagation effect by High Pressure Difference.But the charge conversion of each picture element is become voltage by CMOS, is just amplified before reading, utilize the power supply of 3.3V to drive, power consumption is lower than CCD.
Particularly, fixture 50 is configured with infrared filter 60.The effect of infrared filter 60: according to eyeglass wavelength specification, stops and allows infrared ray to pass through while visible light passes through.As used infrared filter 60, just can visible ray infrared ray mixing light environment in infrared effect is separated, like this, the effect that infrared filter 60 is applied in MEMS camera 10 can be regarded as: there is a large amount of infrared rays on daytime in daylight, but visible ray and deposit, disturb infrared shooting and make that picture is over-exposed to bleach, so need to add infrared filter 10 visible light thus obtain pure infrared effect.
Particularly, wiring board 80 is Flexible Printed Circuit.Wiring board 80 is divided into hardboard, soft board, Rigid Flex three kinds, and certainly, this case also can select Rigid Flex, but its cost is higher, is unfavorable for the cost budgeting of enterprise.
Particularly, MEMS camera 10 also comprises radome 90, and radome 90 covers MEMS motor sub-assembly 20, camera lens 40, fixture 50, transducer 70 and wiring board 80 successively.Wherein, the principle of Mobile phone shielding case 90: be surrounded with the interference source of shield by component, circuit, sub-assembly, cable or whole system, prevent interfere with electromagnetic field to outdiffusion; With shield, receiving circuit, equipment or system are surrounded, prevent them to be subject to the impact of external electromagnetic field.The material of radome 90 adopts stainless steel that 0.2mm is thick and foreign copper-nickel alloy to be material usually.The margin of tolerance that mobile phone metallic shield 10 evenness is strict controlled in 0.05mm is interior with the performance ensureing its easy upper tin, and excellent shield effectiveness.
Below in conjunction with diagram, the operation principle of the iris control apparatus 30 of MEMS camera of the present invention is further described.
First, prepare a black foil 31, rectangle is processed into by laser cutting machine or other cutting machine, and the 3rd perforate 32 is offered in heart position wherein, the aperture of the 3rd perforate 32 is mainly offered according to the logical light quantity of required incident light, after complete, this thin slice 31 is arranged between MEMS motor sub-assembly 20 and camera lens 40, simultaneously, ensure the hole heart of the first perforate 21 of MEMS motor sub-assembly 20, the hole heart of Kong Xinyu the 3rd perforate 32 of the second perforate 41 of camera lens 40 is on same axis, now, incident light is by changing its original clearance amount during the 3rd perforate 32, be specially, when incident light enters the 3rd perforate 32 by the first perforate 21, required incident light is incident upon aperture by its regulation by the second perforate 41, and the isolated incident light removed, it can expose to the black surface of thin slice 31, and cause the incident light of this part to weaken by the extinction function of black, then the outside of camera lens is disappeared in.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (8)
1. the iris control apparatus of a MEMS camera, described MEMS camera comprises MEMS motor sub-assembly and camera lens, described configurations of lenses has aperture, it is characterized in that, described iris control apparatus includes the control of diaphragm part in order to control to enter the size of the incident light of described aperture, and this control of diaphragm part is arranged between described MEMS motor sub-assembly and described camera lens;
Wherein, described MEMS motor sub-assembly offers the first perforate passed through for incident light, described camera lens offers the second perforate passed through for incident light, described aperture is installed on described second perforate, described the control of diaphragm part offers and described first perforate, corresponding the 3rd perforate be communicated with of described second perforate, the pore size of described 3rd perforate is determined according to the actual requirements, and wherein, described actual demand refers to the logical light quantity of required incident light;
The hole heart of the hole heart of described first perforate, the hole heart of described second perforate and described 3rd perforate is arranged on same axis.
2. the iris control apparatus of MEMS camera according to claim 1, is characterized in that, described the control of diaphragm part is a thin slice, and described 3rd perforate is opened in the center of this thin slice.
3. the iris control apparatus of MEMS camera according to claim 2, is characterized in that, described thin slice is black plastic material or ferrous metal material.
4. a MEMS camera, comprise MEMS motor sub-assembly, camera lens, fixture, transducer and wiring board, described camera lens is fixed on described fixture, described wiring board is connected with described MEMS motor sub-assembly, described sensor electrical respectively, it is characterized in that, between described MEMS motor sub-assembly and described camera lens, be provided with the iris control apparatus described in any one of the claims 1 to 3.
5. MEMS camera according to claim 4, is characterized in that, described transducer is ccd sensor or cmos sensor.
6. MEMS camera according to claim 4, is characterized in that, described fixture is configured with infrared filter.
7. MEMS camera according to claim 4, is characterized in that, described wiring board is Flexible Printed Circuit.
8. the MEMS camera according to any one of claim 4 ~ 7, it is characterized in that, described MEMS camera also comprises radome, and described radome covers described MEMS motor sub-assembly, described camera lens, described fixture, described transducer and described wiring board successively.
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| CN201310015162.8A CN103095976B (en) | 2013-01-15 | 2013-01-15 | The MEMS camera of MEMS camera iris control apparatus and application thereof |
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| CN201310015162.8A CN103095976B (en) | 2013-01-15 | 2013-01-15 | The MEMS camera of MEMS camera iris control apparatus and application thereof |
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| CN103095976B true CN103095976B (en) | 2016-02-24 |
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| CN104298348B (en) * | 2014-09-23 | 2018-03-27 | 广东欧珀移动通信有限公司 | A kind of infrared gesture recognition, image capture method, device and video camera |
| CN105511201B (en) * | 2016-02-29 | 2019-01-15 | 联想(北京)有限公司 | A kind of camera module and electronic equipment |
| CN105828589A (en) * | 2016-04-19 | 2016-08-03 | 努比亚技术有限公司 | Shielding device of camera and intelligent terminal |
| CN108234832B (en) * | 2016-12-22 | 2023-09-05 | 宁波舜宇光电信息有限公司 | Image pickup module and photosensitive assembly with improved flatness and manufacturing method thereof |
| CN107374398A (en) * | 2017-09-25 | 2017-11-24 | 艾和美 | A kind of electric oven with camera function |
| CN107846538B (en) * | 2017-11-14 | 2020-02-07 | 上海创功通讯技术有限公司 | Camera module and mobile terminal comprising same |
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Patent Citations (6)
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|---|---|---|---|---|
| EP0834759A2 (en) * | 1996-09-27 | 1998-04-08 | Mcnc | Microelectromechanical devices including rotating plates and related methods |
| EP1202096A2 (en) * | 2000-10-31 | 2002-05-02 | Microsoft Corporation | Microelectrical mechanical structure (MEMS) optical modulator and optical display system |
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