CN2906681Y - Automatic focusing mechanism for mobile phone camera - Google Patents
Automatic focusing mechanism for mobile phone camera Download PDFInfo
- Publication number
- CN2906681Y CN2906681Y CN200620026057.XU CN200620026057U CN2906681Y CN 2906681 Y CN2906681 Y CN 2906681Y CN 200620026057 U CN200620026057 U CN 200620026057U CN 2906681 Y CN2906681 Y CN 2906681Y
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- China
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- inner core
- motor
- mobile phone
- drive motor
- utility
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Abstract
The utility model relates to taking lens of the mobile telephone, in particular to an automatically focusing gear for the taking lens of the mobile telephone, comprising an inner cylinder with a lens cone inside, an outer cylinder, a drive motor and a base. The utility model is characterized in that the drive motor is an annular ultrasonic motor; the drive motor is positioned on the base; the motor and the inner cylinder are driven by a driving pair; the excircle perinium of the inner cylinder is provided with a guidance groove which is matched with the protuberance of the inner wall of the outer cylinder; the lower end face of the inner cylinder is provided with a wedge groove which is matched with the wedge on the base; the lens cone is connected with the inner cylinder by means of threads; the inner side of the upper end of outer cylinder is provided with a projecting piece which is matched with the flute at the outside of the lens cone top. The utility model has the advantages that the telephone taking lens are compact in conformation, small in volume, large in moment, and high in precision, etc.
Description
Technical field
The utility model relates to a kind of cell-phone camera camera lens, relates in particular to a kind of ring-type ultrasonic motor that adopts and realizes the mobile phone cam autofocus mechanism of focusing automatically.
Background technology
What mobile phone cam adopted mostly in the prior art is the common optical lens that focuses, owing to can not focus automatically, draws a portrait second-rate.The camera that some is advanced, though had Autofocus Technology, what generally adopt is electromagnetic induction machines.The electromagnetic induction machines rotating speed is fast, moment is big, power is high, but owing to adopted solenoid and tooth shaft transmission, so the heating loss is big, is difficult for microminiaturization, is difficult to design the very little optical lens for cell phone of structural volume.In addition, type of drive also comprises electrostatic motor, electrostatic motor directly utilizes electrostatic force to drive rotor, do not need solenoid, Miniaturized, but moment is less, and friction and noise between stator and rotor are bigger, often need motor is immersed in the fluid and turn round, be not suitable for being applied in the mobile phone cam.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned technology, and provide a kind of ring-type ultrasonic motor that adopts to realize the mobile phone cam autofocus mechanism of focusing automatically, its can realize focusing automatically microminiaturization of mobile phone cam can be guaranteed characteristics such as its precision height, noise be little again.
The utility model for achieving the above object, by the following technical solutions: a kind of mobile phone cam autofocus mechanism, comprise that inside is provided with the inner core of lens barrel, urceolus, CD-ROM drive motor and pedestal, it is characterized in that: described CD-ROM drive motor is the ring-type ultrasonic motor, CD-ROM drive motor places on the pedestal, motor and inner core are by the transmission transmission, the inner core outer circle wall is provided with guide groove, and with the projection of outer tube inner wall coupling, the inner core lower surface is provided with wedge-shaped slot and connects with wedge kiss on the pedestal, described lens barrel is threaded with inner core, the inboard groove coupling that is provided with the projection and the outside, lens barrel top in urceolus upper end.
Described transmission is to pass through gearing mesh between motor rotor and the inner core inwall.
Described transmission is that inner core places on the inner core underlying foundation as motor rotor, motor stator, is provided with the preloading spring sheet at the inner core inwall.
The beneficial effects of the utility model: adopt that mobile phone cam of the present utility model has compact conformation, volume is little, moment is big, the precision advantages of higher
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the motor configuration synoptic diagram;
Fig. 4 is piezoelectric ring polarization mode and energisation mode synoptic diagram;
Fig. 5 is the structural representation of embodiment 2.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
As shown in Figure 1 and Figure 2, a kind of mobile phone cam autofocus mechanism, comprise that inside is provided with the inner core 3 of lens barrel 1, urceolus 2, CD-ROM drive motor 4 and pedestal 9, described CD-ROM drive motor is the ring-type ultrasonic motor, CD-ROM drive motor places on the pedestal, by gearing mesh, the transmission output torque drives the inner core rotation between motor rotor and the inner core inwall.The inner core outer circle wall is provided with guide groove 5, and with projection 6 coupling of outer tube inner wall, inner core is rotated along track, the inner core lower surface is provided with wedge-shaped slot 7 and connects with wedge 8 kisses on the pedestal, its horizontal level was constant when track and wedge structure guaranteed the inner core rotation.Described lens barrel is threaded with inner core, the inboard groove 1-1 coupling that is provided with the projection 2-1 and the outside, lens barrel top in urceolus upper end, lens barrel does not produce and rotatablely moves when guaranteeing the inner core rotation, thereby realize moving up and down of lens barrel by screw thread rotation motion relative between lens barrel and the inner core, finish automatic focus function.Motor configuration as shown in Figure 3, mainly by stator 11, rotor 10 and preloading spring sheet 12 formed.As shown in Figure 4, A district and B district are polarized area, be made up of the several sections piezoelectric ceramic pieces that polarized, the S section length is 1/4 wavelength, is used for the synthetic capable ripple of two standing waves, the GND head of district is 3/4 wavelength, as the public ground in A district and B district, when A district and B district inserted the signal of sinwt and coswt respectively, two groups of piezoelectrics obtained the exciting of 90 ° of phase differential on the time and space, the surface forms the row ripple, drives the rotor rotation by friction force.
As shown in Figure 5, be that ring-type ultrasonic motor stator 13 places on the pedestal corresponding below the inner core with the difference of embodiment 1, with the inner core is rotor, stator surface forms capable ripple under the control of electric signal, directly by the mantle friction output torque, drives the inner core rotation.The preloading spring sheet 14 of inner core inwall setting has guaranteed that enough pretightning forces are arranged between rotor and stator.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (3)
1, a kind of mobile phone cam autofocus mechanism, comprise that inside is provided with the inner core of lens barrel, urceolus, CD-ROM drive motor and pedestal, it is characterized in that: described CD-ROM drive motor is the ring-type ultrasonic motor, CD-ROM drive motor places on the pedestal, motor and inner core are by the transmission transmission, the inner core outer circle wall is provided with guide groove, and with the projection of outer tube inner wall coupling, the inner core lower surface is provided with wedge-shaped slot and connects with wedge kiss on the pedestal, described lens barrel is threaded with inner core, the inboard groove coupling that is provided with the projection and the outside, lens barrel top in urceolus upper end.
2, mobile phone cam autofocus mechanism according to claim 1 is characterized in that: described transmission is to pass through gearing mesh between motor rotor and the inner core inwall.
3, mobile phone cam autofocus mechanism according to claim 1 is characterized in that: described transmission is that inner core places on the inner core underlying foundation as motor rotor, motor stator, is provided with the preloading spring sheet at the inner core inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620026057.XU CN2906681Y (en) | 2006-05-16 | 2006-05-16 | Automatic focusing mechanism for mobile phone camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620026057.XU CN2906681Y (en) | 2006-05-16 | 2006-05-16 | Automatic focusing mechanism for mobile phone camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2906681Y true CN2906681Y (en) | 2007-05-30 |
Family
ID=38115322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200620026057.XU Expired - Fee Related CN2906681Y (en) | 2006-05-16 | 2006-05-16 | Automatic focusing mechanism for mobile phone camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2906681Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123436A (en) * | 2013-02-20 | 2013-05-29 | 苏州佳世达光电有限公司 | Optical device with dustproof structure |
| CN110971794A (en) * | 2019-11-11 | 2020-04-07 | RealMe重庆移动通信有限公司 | Camera module and electronic equipment |
| CN115412675A (en) * | 2022-08-31 | 2022-11-29 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN117008277A (en) * | 2023-09-28 | 2023-11-07 | 荣耀终端有限公司 | Lens assembly, camera module and terminal device |
-
2006
- 2006-05-16 CN CN200620026057.XU patent/CN2906681Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123436A (en) * | 2013-02-20 | 2013-05-29 | 苏州佳世达光电有限公司 | Optical device with dustproof structure |
| CN103123436B (en) * | 2013-02-20 | 2015-03-25 | 苏州佳世达光电有限公司 | Optical device with dustproof structure |
| CN110971794A (en) * | 2019-11-11 | 2020-04-07 | RealMe重庆移动通信有限公司 | Camera module and electronic equipment |
| CN115412675A (en) * | 2022-08-31 | 2022-11-29 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN117008277A (en) * | 2023-09-28 | 2023-11-07 | 荣耀终端有限公司 | Lens assembly, camera module and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 |