CN103095976A - Micro-electromechanical system (MEMS) camera diaphragm control device and MEMS camera thereof - Google Patents
Micro-electromechanical system (MEMS) camera diaphragm control device and MEMS camera thereof Download PDFInfo
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- CN103095976A CN103095976A CN2013100151628A CN201310015162A CN103095976A CN 103095976 A CN103095976 A CN 103095976A CN 2013100151628 A CN2013100151628 A CN 2013100151628A CN 201310015162 A CN201310015162 A CN 201310015162A CN 103095976 A CN103095976 A CN 103095976A
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Abstract
The invention provides a micro-electromechanical system (MEMS) camera diaphragm control device. An MEMS camera comprises an MEMS motor assembly and a shot. The shot is provided with a diaphragm. The diaphragm control device comprises a diaphragm control piece. The diaphragm control piece is arranged between the MEMS motor assembly and the shot. According to the MEMS, namely, the micro-electromechanical system, in design of an MEMS device, microstructures of the MEMS are arranged corresponding to relative components so that in the MEMS camera, the MEMS motor and the diaphragm are fixedly and correspondingly arranged, and therefore only incident light in fixed size can be obtained by the diaphragm and the single incident light undoubtedly influences focusing imaging. According to the diaphragm control piece, size of the incident light emitting into the diaphragm can be controlled according to requirements so that imaging effect can be improved and redesign of the MEMS device due to the incident light can be avoided, and therefore cost budget is reduced. The invention further provides the MEMS camera.
Description
Technical field
The present invention relates to the camera technical field, particularly relate to a kind of iris control apparatus of MEMS camera and dispose the MEMS camera of this iris control apparatus.
Background technology
At present, MEMS (micro electro mechanical system) (MEMS) is used for camera focusing, is a kind of emerging technology in camera technique field.Design for aperture, its size is just fixing after MEMS has designed, therefore its aperture can only obtain fixing incident light, as shown in Figure of description 1, in the figure, MENS motor sub-assembly 20 links together with camera lens 40, wherein the MEMS motor sub-assembly offers the first perforate 21, and camera lens 40 offers the second perforate 41, and aperture is arranged in the second perforate 41, when shooting, incident light is through the first perforate 21, the second perforate 41 and be incident upon aperture, its logical light quantity can not change according to demand, causes the focusing imaging single, affects shooting effect.So, if need to obtain different incident lights, according to general design, must change the design of MEMS, so just brought a problem, because MEMS makes the main wafer process that adopts, its design needs six months at the soonest, and the cycle of getting the raw materials ready is long, the flexibility extreme difference, affect undoubtedly the listing progress of product, in addition, the redesign of MEMS has also strengthened 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, can only obtain the problem of fixing incident light with the aperture in the MEMS camera that solves prior art.
For reaching this purpose, 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 spare of size that enters the incident light of described aperture in order to control, and this control of diaphragm spare 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 of passing through for incident light, described camera lens offers the second perforate of passing through for incident light, described aperture is installed on described the second perforate, and described the control of diaphragm spare offers the 3rd perforate with described the first perforate, described the second corresponding connection of perforate;
Preferably, the hole heart of the hole heart of the hole heart of described the first perforate, described the second perforate and described the 3rd perforate is arranged on same axis;
Preferably, described the control of diaphragm spare is a thin slice, and described the 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 in described fixture, described wiring board is connected with described MEMS motor sub-assembly, described sensor electrical respectively, is provided with the 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, dispose infrared filter on described fixture.
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 the MEMS designs, its microstructure mostly is greatly configuration corresponding to associated components, so in the MEMS camera, the MEMS motor sub-assembly is fixing corresponding configuration with aperture, make aperture can only obtain the incident light of fixed size, single incident light affects the focusing imaging undoubtedly, and the control of diaphragm spare in this case, can enter according to demand the size of the incident light of aperture with control, thereby improved imaging effect, but also effectively avoid needing redesign MEMS device because of the cause of incident light, reduced cost budgeting.
Description of drawings
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, is installed on the structure between MEMS motor sub-assembly and camera lens to show iris control apparatus;
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 spare; 32, the 3rd perforate; 40, camera lens; 41, the second perforate; 50, fixture; 60, infrared filter; 70, transducer; 80, wiring board; 90, radome.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
See also shown in Figure 3, the invention provides a kind of iris control apparatus 30 of MEMS camera, the MEMS camera comprises MEMS motor sub-assembly 20 and camera lens 40, camera lens 40 disposes aperture, particularly, camera lens 40 is the devices with photographed imaging on transducer 70, and it is comprised of several lens usually, in addition, camera lens 40 has the parameter of two outbalances: aperture and focal length.Aperture is mounted on camera lens 40 controls what the device of light that arrives transducers 70 by camera lens 40, except controlling logical light quantity, aperture also has the function of controlling the depth of field, and aperture is larger, the depth of field is less, and the dim effect of background is exactly a kind of embodiment of the little depth of field when clapping portrait at ordinary times.Iris control apparatus 30 includes the control of diaphragm spare 31 of size that enters the incident light of aperture in order to control, and the control of diaphragm spare 31 is arranged between MEMS motor sub-assembly 20 and camera lens 40.In the MEMS designs, its microstructure mostly is greatly configuration corresponding to associated components, so in the MEMS camera, MEMS motor sub-assembly 20 is fixing corresponding configuration with aperture, make aperture can only obtain the incident light of fixed size, single incident light affects the focusing imaging undoubtedly, and the control of diaphragm spare in this case 31, can enter according to demand the size of the incident light of aperture with control, thereby improved imaging effect, but also effectively avoid needing redesign MEMS device because of the cause of incident light, reduced cost budgeting.
Wherein, MEMS is MEMS (micro electro mechanical system), MEMS is the call of the U.S., be called as micromechanics in Japan, be called as micro-system in Europe, but it refers to batch making, integrates micro mechanism, microsensor, miniature actuator and signal processing with control circuit until interface, communicate by letter and microdevice or the system of power supply etc.Micro-electromechanical system (MEMS) (Micro-Electro-Mechanical Systems) is a kind of brand-new technology, it must consider the research and development field of multiple physical field immixture simultaneously, with respect to traditional machinery, their size is less, maximum is no more than one centimetre, be even only several microns, its thickness is just more small.The integrated microdevice system that complete MEMS is comprised of microsensor, microactrator, signal processing and the parts such as control circuit, communication interface and power supply, its target be information obtain, process and execution integrates, form and have multi-functional microsystem, be integrated in the large scale system, thereby improve significantly automation, intellectuality and the reliability level of system.
Particularly, MEMS motor sub-assembly 20 offers the first perforate 21 of passing through for incident light, camera lens 40 offers the second perforate 41 of passing through for incident light, aperture is installed on the second perforate 41, the control of diaphragm spare 31 offers the 3rd perforate 32 with the first perforate 21, the second corresponding connection of perforate 41, wherein, and the offering of the 3rd perforate 32, can offer according to the actual requirements the aperture of different sizes, thereby make aperture obtain required logical light quantity.Preferably, the hole heart of the hole heart of the hole heart of the first perforate 21, the second perforate 41 and the 3rd perforate 32 is arranged on same axis, be specially, has concentricity between MEMS motor sub-assembly 20, the control of diaphragm spare 31 and camera lens 40, with the logical light quantity of further assurance, avoid actual incident light and the theoretical value that enters aperture larger deviation to occur.
See also shown in Figure 4ly, as the preferred embodiment of this case, the control of diaphragm spare 31 is a thin slice 31, the 3rd perforate 32 is opened in the center of this thin slice 31, by adopting thin slice 31, not only be convenient to it and be installed between MEMS motor sub-assembly 20 and camera lens 40, but also be 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 a little less than.White light is comprised of 7 kinds of visible lights, different objects is different about reception and the reflection condition of these 7 kinds of visible lights, and the ability of general black object reception light is all stronger, the ability of its reflection ray all a little less than, therefore, thin slice 31 is selected black plastic material or ferrous metal material, weakens preferably the incident light that needs isolation, guarantees the focusing imaging of camera.
See also Fig. 2 and shown in Figure 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 in fixture 50, wiring board 80 is electrically connected to 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 is cores that camera forms, and is also the technology of most critical, and it is a kind of light that is used for receiving 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, and both are in difference: the advantage of CCD is good imaging quality, but because manufacturing process is complicated, only have the manufacturer of minority to grasp, so cause manufacturing cost high, large-scale CCD particularly, price is very high.Under equal resolution, CCD is cheap for the CMOS cost ratio, but the picture quality that cmos device produces is compared CCD and will be hanged down.With respect to ccd sensor, one of advantage of CMOS image sensor is that power consumption is lower than CCD, and CCD is for providing excellent image quality, paying a price is namely higher power consumption, for making the electric charge transmission smooth and easy, reducing noise needs to improve laser propagation effect by High Pressure Difference.But the CMOS image sensor becomes voltage with the charge conversion of each picture element, just it is amplified before reading, and utilizes the power supply of 3.3V to drive, and power consumption is lower than CCD.
Particularly, dispose infrared filter 60 on fixture 50.The effect of infrared filter 60: according to eyeglass wavelength specification, stop when filtering visible light passes through to allow infrared ray to pass through.As use infrared filter 60, just can visible light infrared effect is separated in the light environment that mixes of infrared ray, like this, the effect that infrared filter 60 is applied in MEMS camera 10 can be regarded as: a large amount of infrared rays is arranged in daylight daytime, but visible light and deposit, disturbed infrared shooting to make that picture is over-exposed to bleach, so thereby need to add infrared filter 10 filters visible lights and obtain pure infrared effect.
Particularly, wiring board 80 is Flexible Printed Circuit.Wiring board 80 is divided into three kinds of hardboards, soft board, Rigid Flex, and certainly, this case also can be selected 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 with component, circuit, sub-assembly, cable or whole system, prevent that interfere with electromagnetic field is to outdiffusion; With shield, receiving circuit, equipment or system are surrounded, prevent that they are subject to the impact of external electromagnetic field.It is material that the material of radome 90 adopts the thick stainless steel of 0.2mm and foreign copper-nickel alloy usually.Mobile phone metallic shield 10 evenness are strict controlled in the margin of tolerance of 0.05mm to guarantee the performance of its easily upper tin, and good 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.
at first, prepare a black foil 31, be processed into rectangle by laser cutting machine or other cutting machine, and the 3rd perforate 32 is offered in heart position therein, 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, guarantee 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, at this moment, incident light can change its original amount of being open to the custom during by 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 of removing, 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 disappear in the outside of camera lens.
Know-why of the present invention has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present invention, and can not be interpreted as by any way limiting the scope of the invention.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, within these modes all will fall into protection scope of the present invention.
Claims (10)
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 spare of size that enters the incident light of described aperture in order to control, and this control of diaphragm spare is arranged between described MEMS motor sub-assembly and described camera lens.
2. the iris control apparatus of MEMS camera according to claim 1, it is characterized in that, described MEMS motor sub-assembly offers the first perforate of passing through for incident light, described camera lens offers the second perforate of passing through for incident light, described aperture is installed on described the second perforate, and described the control of diaphragm spare offers the 3rd perforate with described the first perforate, described the second corresponding connection of perforate.
3. the iris control apparatus of MEMS camera according to claim 2, is characterized in that, the hole heart of the hole heart of described the first perforate, the hole heart of described the second perforate and described the 3rd perforate is arranged on same axis.
4. the iris control apparatus of according to claim 2 or 3 described MEMS cameras, is characterized in that, described the control of diaphragm spare is a thin slice, and described the 3rd perforate is opened in the center of this thin slice.
5. the iris control apparatus of MEMS camera according to claim 4, is characterized in that, described thin slice is black plastic material or ferrous metal material.
6. MEMS camera, comprise MEMS motor sub-assembly, camera lens, fixture, transducer and wiring board, described camera lens is fixed in described fixture, described wiring board is connected with described MEMS motor sub-assembly, described sensor electrical respectively, it is characterized in that, be provided with the claims 1 to the 5 described iris control apparatus of any one between described MEMS motor sub-assembly and described camera lens.
7. MEMS camera according to claim 6, is characterized in that, described transducer is ccd sensor or cmos sensor.
8. MEMS camera according to claim 6, is characterized in that, disposes infrared filter on described fixture.
9. MEMS camera according to claim 6, is characterized in that, described wiring board is Flexible Printed Circuit.
10. according to claim 6～9 described MEMS cameras of any one, 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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Cited By (6)
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| CN104298348A (en) * | 2014-09-23 | 2015-01-21 | 广东欧珀移动通信有限公司 | Infrared gesture recognizer, camera shooting method and device and video camera |
| CN105511201A (en) * | 2016-02-29 | 2016-04-20 | 联想(北京)有限公司 | 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 |
| CN107374398A (en) * | 2017-09-25 | 2017-11-24 | 艾和美 | A kind of electric oven with camera function |
| CN107846538A (en) * | 2017-11-14 | 2018-03-27 | 上海创功通讯技术有限公司 | Camera module and the mobile terminal containing it |
| CN108234832A (en) * | 2016-12-22 | 2018-06-29 | 宁波舜宇光电信息有限公司 | The camera module and photosensory assembly and its manufacturing method of improvement flatness |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104298348A (en) * | 2014-09-23 | 2015-01-21 | 广东欧珀移动通信有限公司 | Infrared gesture recognizer, camera shooting method and device and video camera |
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| 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 |
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| 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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| CN103095976B (en) | 2016-02-24 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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Granted publication date: 20160224 |