CN203039785U - MEMS camera aperture control device and MEMS camera thereof - Google Patents
MEMS camera aperture control device and MEMS camera thereof Download PDFInfo
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- CN203039785U CN203039785U CN 201320020186 CN201320020186U CN203039785U CN 203039785 U CN203039785 U CN 203039785U CN 201320020186 CN201320020186 CN 201320020186 CN 201320020186 U CN201320020186 U CN 201320020186U CN 203039785 U CN203039785 U CN 203039785U
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Abstract
The utility model provides an aperture control device of an MEMS camera. The MEMES camera comprises an MEMS motor assembly and a camera lens. The camera lens is provided with an aperture, and the aperture control device comprises an aperture control member. The aperture control member is disposed between the MEMS motor assembly and the camera lens. The MEMS is a micro-electro-mechanical system, and according to the design of the MEMS device, the mini-sized structures are mostly correspondingly cooperated with the related parts. In the MEMS camera lens, the MEMS motor assembly is fixedly correspondingly cooperated with the aperture, therefore the aperture can only acquire the incident light having the fixed size, and the single incident light has an influence on the focusing and the imaging without doubts. According to the aperture control member provided in the utility model, the size of the incident light entering the aperture can be controlled according to the requirements, therefore the imaging effect can be improved, the MEMS device is not required to be redesigned caused by the problem of the incident light, and the cost budget can be reduced. The utility model also provides an MEMS camera.
Description
Technical field
The utility model relates to the camera technical field, particularly relates to a kind of iris control apparatus of MEMS camera and disposes the MEMS camera of this iris control apparatus.
Background technology
At present, MEMS (micro electro mechanical system) (MEMS) is used for the camera focusing, is a kind of emerging technology in camera technique field.Design for aperture, it is just fixing to have designed its size of back at MEMS, therefore its aperture can only obtain fixing incident light, 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 first perforate 21, and camera lens 40 offers second perforate 41, and aperture is installed in second perforate 41, when shooting, incident light is through first perforate 21, second perforate 41 and be incident upon aperture, its logical light quantity can not change according to demand, causes the focusing imaging single, influences shooting effect.So, obtain different incident lights if desired, according to general design, then 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 the listing progress of product undoubtedly, 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.
The utility model content
The purpose of this utility model 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 utility model 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 aperture control piece of size that enters the incident light of described aperture in order to control, and this aperture control piece is arranged between described MEMS motor sub-assembly and the described camera lens.
As further preferred version, described MEMS motor sub-assembly offers first perforate of passing through for incident light, described camera lens offers second perforate of passing through for incident light, described aperture is installed on described second perforate, and described aperture control piece offers the 3rd perforate with described first perforate, the corresponding connection of described second perforate;
Preferably, the hole heart of the hole heart of the hole heart of described first perforate, described second perforate and described the 3rd perforate is arranged on the same axis;
Preferably, described aperture control piece 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 the described camera lens.
As further preferred version, described transducer is ccd sensor or cmos sensor.
As further preferred version, dispose infrared filter on the 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.
The beneficial effects of the utility model are: wherein, MEMS is MEMS (micro electro mechanical system), in the MEMS designs, its microstructure mostly is corresponding configuration with associated components greatly, 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 aperture control piece in this case, the size that can enter the incident light of aperture according to demand with control, thus improved imaging effect, but also avoid effectively 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 the camera lens;
Fig. 2 is the stereogram of the utility model MEMS camera, 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 the camera lens to show iris control apparatus;
Fig. 4 is the schematic diagram of the iris control apparatus of the utility model MEMS camera.
Among the figure:
10, MEMS camera; 20, MEMS motor sub-assembly; 21, first perforate; 30, iris control apparatus; 31, aperture control piece; 32, the 3rd perforate; 40, camera lens; 41, second perforate; 50, fixture; 60, infrared filter; 70, transducer; 80, wiring board; 90, radome.
Embodiment
Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
See also shown in Figure 3, the utility model 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 made up of several lens usually, in addition, camera lens 40 has the parameter of two outbalances: aperture and focal length.Aperture is mounted on the camera lens 40 control arrives transducers 70 by camera lens 40 what device of light, except controlling logical light quantity, aperture also has the function of the control depth of field, and aperture is more big, the depth of field is more little, 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 aperture control piece 31 of size that enters the incident light of aperture in order to control, and aperture control piece 31 is arranged between MEMS motor sub-assembly 20 and the camera lens 40.In the MEMS designs, its microstructure mostly is corresponding configuration with associated components greatly, 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 aperture control piece 31 in this case, can enter the size of the incident light of aperture according to demand with control, thereby improved imaging effect, but also avoid effectively 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, integrate micro mechanism, microsensor, miniature actuator and signal processing and 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 littler, maximum is no more than one centimetre, even only be several microns, its thickness is just more small.The integrated microdevice system that complete MEMS is made up of microsensor, microactrator, signal processing and parts such as control circuit, communication interface and power supply, its target be information obtain, handle and execution integrates, form and have multi-functional microsystem, be integrated in the large scale system, thereby improve automation, intellectuality and the reliability level of system significantly.
Particularly, MEMS motor sub-assembly 20 offers first perforate of passing through for incident light 21, camera lens 40 offers second perforate of passing through for incident light 41, aperture is installed on second perforate 41, aperture control piece 31 offers the 3rd perforate 32 with first perforate 21, second perforate, 41 corresponding connections, wherein, and the offering of the 3rd perforate 32, can offer the aperture of different sizes according to the actual requirements, thereby make aperture obtain required logical light quantity.Preferably, the hole heart of the hole heart of the hole heart of first perforate 21, second perforate 41 and the 3rd perforate 32 is arranged on the same axis, be specially, has concentricity between MEMS motor sub-assembly 20, aperture control piece 31 and the camera lens 40, with the logical light quantity of further assurance, avoid actual incident light and the theoretical value that enters aperture bigger deviation to occur.
See also shown in Figure 4ly, as the preferred embodiment of this case, aperture control piece 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 the 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, their reception ability difference only, have have by force a little less than.White light is made up of 7 kinds of visible lights, different objects has nothing in common with each other 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 for use, and reduction preferably needs the incident light of isolation, guarantees the focusing imaging of camera.
See also Fig. 2 and shown in Figure 3, the utility model 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 with MEMS motor sub-assembly 20, transducer 70 respectively, is provided with said aperture control device 30 between MEMS motor sub-assembly 20 and the camera lens 40.
Particularly, transducer 70 is ccd sensor or cmos sensor.Transducer 70 is cores that camera is formed, and also is 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 transducer, and both are in difference: the advantage of CCD is good imaging quality, but because the manufacturing process complexity, have only the manufacturer of minority to grasp, so cause manufacturing cost high, large-scale CCD particularly, price is very high.Under equal resolution, the CMOS price is more cheap than CCD, 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 namely is higher power consumption, for making the electric charge transmission smooth and easy, noise reduces, and 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 the 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 the MEMS camera 10 can be regarded as: a large amount of infrared rays is arranged in the daylight daytime, but visible light and deposit, disturbed infrared shooting to make that picture is over-exposed to bleach, so thereby need 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 cover 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 subjected to the influence 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 that it goes up the performance of tin and good shield effectiveness easily.
Below in conjunction with diagram, the operation principle of the iris control apparatus 30 of MEMS camera of the present utility model 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 intact, this thin slice 31 is installed between MEMS motor sub-assembly 20 and the camera lens 40, simultaneously, guarantee the hole heart of first perforate 21 of MEMS motor sub-assembly 20, the hole heart of Kong Xinyu the 3rd perforate 32 of second perforate 41 of camera lens 40 is on the 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 entered the 3rd perforate 32 by first perforate 21, required incident light was incident upon aperture by its regulation by second perforate 41, and the isolated incident light of removing, it can expose to the black surface of thin slice 31, and causes the incident light of this part to weaken by the extinction function of black, disappears in the outside of camera lens then.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection range 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 utility model, and these modes all will fall within the protection range of the present utility model.
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 aperture control piece of size that enters the incident light of described aperture in order to control, and this aperture control piece is arranged between described MEMS motor sub-assembly and the 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 first perforate of passing through for incident light, described camera lens offers second perforate of passing through for incident light, described aperture is installed on described second perforate, and described aperture control piece offers the 3rd perforate with described first perforate, the corresponding connection of described second 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 first perforate, the hole heart of described second perforate and described the 3rd perforate is arranged on the same axis.
4. according to the iris control apparatus of claim 2 or 3 described MEMS cameras, it is characterized in that described aperture control piece is a thin slice, 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 aforesaid right requirement 1 to 5 each described iris control apparatus between described MEMS motor sub-assembly and the 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 the described fixture.
9. MEMS camera according to claim 6 is characterized in that, described wiring board is Flexible Printed Circuit.
10. according to each described MEMS camera of claim 6～9, 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020186 CN203039785U (en) | 2013-01-15 | 2013-01-15 | MEMS camera aperture control device and MEMS camera thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320020186 CN203039785U (en) | 2013-01-15 | 2013-01-15 | MEMS camera aperture control device and MEMS camera thereof |
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| Publication Number | Publication Date |
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| CN203039785U true CN203039785U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320020186 Expired - Lifetime CN203039785U (en) | 2013-01-15 | 2013-01-15 | MEMS camera aperture control device and MEMS camera thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901185A (en) * | 2019-03-26 | 2019-06-18 | Oppo广东移动通信有限公司 | Flight time component and electronic equipment |
-
2013
- 2013-01-15 CN CN 201320020186 patent/CN203039785U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109901185A (en) * | 2019-03-26 | 2019-06-18 | Oppo广东移动通信有限公司 | Flight time component and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |
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| CX01 | Expiry of patent term |