CN102466842B - Optical device and collision prevention method of lens - Google Patents
Optical device and collision prevention method of lens Download PDFInfo
- Publication number
- CN102466842B CN102466842B CN201010552022.0A CN201010552022A CN102466842B CN 102466842 B CN102466842 B CN 102466842B CN 201010552022 A CN201010552022 A CN 201010552022A CN 102466842 B CN102466842 B CN 102466842B
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- lens
- sensing
- integrated circuit
- control unit
- circuit board
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Abstract
The invention relates to an optical device and collision prevention method of lens. The optical device comprises a lens, a driving unit, a controlling unit, a side frame and a boundary sensing unit. The lens comprises a metal lens barrel. The driving unit is connected with the lens and the lens is moved by the driving unit. The controlling unit is electrically connected with the driving unit to control the movement of the lens. The side frame is provided with an internal wall; the lens movement range is defined by the side frame. The boundary sensing unit is installed on the internal wall, which comprises an integrated circuit and a plurality of sensing components. The integrated circuit is electrically connected with the controlling unit. The sensing component is electrically connected with the integrated circuit. These sensing components are equidistantly arranged on the internal wall to surround the lens; while the metal lens barrel approaches to any sensing component, the capacitance of the sensing component is changed; the integrated circuit sends the position sensing signal towards the controlling unit according to the change of the capacitance of the sensing component; and the movement of the lens is controlled by the control unit according to the position sensing signal.
Description
Technical field
The present invention relates to a kind of Optical devices, particularly a kind of have Optical devices and a collision prevention method of lens thereof that prevents camera lens collision function.
Background technology
Existing Optical devices disclose No. 200905354 patent such as TaiWan, China and disclose.In existing Optical devices, for preventing that camera lens and frame from bumping, general all by the rotation step number of control unit calculated step motor, to judge the position coordinates of camera lens, again the critical coordinate in this position coordinates and the database is compared, to judge whether and to bump.Yet, in the prior art, because the cost of the devices such as stepper motor, control unit and databases is higher, improved the holistic cost of Optical devices.In addition, because calculation step is complicated, occur for avoiding inertial collision, therefore the translational speed that needs to reduce camera lens is arranged, cause user's inconvenience in the use.
Summary of the invention
The technical problem to be solved in the present invention is, for the higher defective of the associated component cost of Optical devices in the prior art, provides a kind of Optical devices and collision prevention method of lens thereof, can low-cost reach to prevent the purpose of colliding.
The technical solution adopted for the present invention to solve the technical problems is, a kind of Optical devices are provided, and comprises camera lens, driver element, control unit, frame and border sensing cell.Camera lens comprises the metal lens barrel.Driver element connects and mobile this camera lens.Control unit is electrically connected this driver element, to control the movement of this camera lens.Frame has inwall, this frame definition lens moving scope.The border sensing cell is located at this inwall, comprises integrated circuit and a plurality of sensing component.Integrated circuit is electrically connected this control unit.Sensing component is electrically connected this integrated circuit.These sensing components equidistantly are located at this inwall and around this camera lens, wherein, when nearly this arbitrary sensing component of this speculum socket joint, the capacitance of this sensing component changes, this integrated circuit sends the location sensing signal according to the electric capacitance change of this sensing component towards this control unit, and this control unit is according to the movement of this this camera lens of location sensing signal controlling.
The present invention also provides a kind of collision prevention method of lens, comprising:
Aforesaid Optical devices are provided;
This control unit is this location sensing signal fusing one position critical value, and when this location sensing signal reached this position critical value, this control unit limited the action of this driver element.
Use the present invention, because the control step is simple, principle of operation is simple, therefore can low-cost reach to prevent the purpose of colliding.
Description of drawings
Fig. 1 is the stereogram that shows the Optical devices of the embodiment of the invention;
Fig. 2 is the calcspar that shows the Optical devices of the embodiment of the invention;
Fig. 3 is the thin section structure that shows the border sensing cell; And
Fig. 4 is the orientation that arranges that shows sensing component.
Embodiment
Fig. 1 is the stereogram that shows the Optical devices 100 of the embodiment of the invention, and Fig. 2 is the calcspar that shows the Optical devices 100 of the embodiment of the invention.With reference to Fig. 1,2, the Optical devices 100 of the embodiment of the invention comprise camera lens 110, driver element 120, control unit 130, frame 140 and border sensing cell 150.Camera lens 110 comprises metal lens barrel 111.Driver element 120 connects and mobile this camera lens 110.Control unit 130 is electrically connected this driver element 120, to control the movement of this camera lens 110.Frame has inwall 141, these frame 140 definition lens moving scopes.Border sensing cell 150 is located at this inwall 141.
Collocation is with reference to Fig. 1,3, and Fig. 3 is the thin section structure that shows border sensing cell 150.Border sensing cell 150 comprises integrated circuit 151, flexible circuit board 152 and a plurality of sensing component 153.Integrated circuit 151 is electrically connected this control unit 130.Sensing component 153 is electrically connected this integrated circuit 151 by flexible circuit board 152.These sensing components 153 are equidistantly to be arranged on the flexible circuit board 152.These sensing components 153 can be Copper Foil.This integrated circuit 151 is the capacitance type sensing integrated circuit.
With reference to Fig. 1,4, in an embodiment of the present invention, these sensing components 153 are equidistantly around this camera lens 110, and this flexible circuit board 152 is located at this inwall 141.The quantity of these sensing components 153 is eight, and equidistantly arranges in the mode of differential seat angle as 45 °.Wherein, when this metal lens barrel 111 approached this arbitrary sensing component 153, the electric charge on this sensing component 153 was attracted, and caused capacitance to change.This integrated circuit 151 sends the location sensing signal according to the electric capacitance change of this sensing component 153 towards this control unit 130, and this control unit 130 is according to the movement of this this camera lens 110 of location sensing signal controlling.By this, can accurately predict the moving direction of camera lens 110.In other embodiments, the quantity of these sensing components can optionally change, and for example, the quantity of these sensing components can be four.
In an embodiment of the present invention, this frame is circular, and in other embodiments, this frame can also be other shape, and is for example, square.
In the above-described embodiments, this control unit 130 is with this location sensing signal fusing position critical value, when camera lens 110 during too near inwall 141, this location sensing signal reaches this position critical value, therefore this control unit 130 limits the action of this driver element 120, to prevent camera lens 110 collision frames 140.
Use the present invention, because the control step is simple, principle of operation is simple, therefore can low-cost reach to prevent the purpose of colliding.
Although the present invention discloses as above with concrete preferred embodiment; but it is not to limit the present invention, those skilled in the art person, without departing from the spirit and scope of the present invention; still can do a little change and retouching, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (10)
1. Optical devices is characterized in that, comprising:
Camera lens comprises the metal lens barrel;
Driver element connects and mobile this camera lens;
Control unit is electrically connected this driver element, to control the movement of this camera lens;
Frame has inwall, this frame definition lens moving scope; And
The border sensing cell is located at this inwall, comprising:
Integrated circuit is electrically connected this control unit; And
A plurality of sensing components, be electrically connected this integrated circuit, these sensing components equidistantly are located at this inwall and around this camera lens, wherein, when nearly this arbitrary sensing component of this speculum socket joint, the capacitance of this sensing component changes, and this integrated circuit sends the location sensing signal according to the electric capacitance change of this sensing component towards this control unit, and this control unit is according to the movement of this this camera lens of location sensing signal controlling.
2. Optical devices as claimed in claim 1 is characterized in that, these sensing components are Copper Foil.
3. Optical devices as claimed in claim 1 is characterized in that, this integrated circuit is the capacitance type sensing integrated circuit.
4. Optical devices as claimed in claim 1 is characterized in that, this border sensing cell more comprises flexible circuit board, and these sensing components are equidistantly to be arranged on the flexible circuit board, and are electrically connected this integrated circuit by this flexible circuit board.
5. Optical devices as claimed in claim 4 is characterized in that, this flexible circuit board is located at this inwall.
6. a collision prevention method of lens is characterized in that, comprising:
Optical devices such as claim 1 are provided;
This control unit is this location sensing signal fusing one position critical value, and when this location sensing signal reached this position critical value, this control unit limited the action of this driver element.
7. collision prevention method of lens as claimed in claim 6 is characterized in that, these sensing components are Copper Foil.
8. collision prevention method of lens as claimed in claim 6 is characterized in that, this integrated circuit is the capacitance type sensing integrated circuit.
9. collision prevention method of lens as claimed in claim 6 is characterized in that, this border sensing cell more comprises flexible circuit board, and these sensing components are equidistantly to be arranged on the flexible circuit board, and are electrically connected this integrated circuit by this flexible circuit board.
10. collision prevention method of lens as claimed in claim 9 is characterized in that, this flexible circuit board is located at this inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552022.0A CN102466842B (en) | 2010-11-09 | 2010-11-09 | Optical device and collision prevention method of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010552022.0A CN102466842B (en) | 2010-11-09 | 2010-11-09 | Optical device and collision prevention method of lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102466842A CN102466842A (en) | 2012-05-23 |
| CN102466842B true CN102466842B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010552022.0A Expired - Fee Related CN102466842B (en) | 2010-11-09 | 2010-11-09 | Optical device and collision prevention method of lens |
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| Country | Link |
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| CN (1) | CN102466842B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076479B (en) * | 2013-03-28 | 2017-07-14 | 浙江大华技术股份有限公司 | Lens barrel sliding block, amasthenic lens, image capture device, controller and control method |
| EP2889573B1 (en) * | 2013-12-24 | 2016-06-15 | Tesa Sa | Motorized inclinable measuring head |
| CN112393680B (en) * | 2019-08-16 | 2022-09-30 | 深圳中科飞测科技股份有限公司 | Detection device, control method thereof, detection lens assembly and controller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5073790A (en) * | 1989-06-06 | 1991-12-17 | Asahi Kogaku Kogyo Kabushiki Kaisha | Position sensing device |
| CN101266387A (en) * | 2007-03-15 | 2008-09-17 | 上海乐金广电电子有限公司 | Small-sized pick-up head module displacement sensor |
| TW201120497A (en) * | 2009-12-11 | 2011-06-16 | Asia Optical Co Inc | Optical device and lens collision preventing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05181049A (en) * | 1992-01-06 | 1993-07-23 | Canon Inc | Lens position detecting device |
| JP4603146B2 (en) * | 2000-11-27 | 2010-12-22 | オリンパス株式会社 | Zoomable camera |
-
2010
- 2010-11-09 CN CN201010552022.0A patent/CN102466842B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5073790A (en) * | 1989-06-06 | 1991-12-17 | Asahi Kogaku Kogyo Kabushiki Kaisha | Position sensing device |
| CN101266387A (en) * | 2007-03-15 | 2008-09-17 | 上海乐金广电电子有限公司 | Small-sized pick-up head module displacement sensor |
| TW201120497A (en) * | 2009-12-11 | 2011-06-16 | Asia Optical Co Inc | Optical device and lens collision preventing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2002-162554A 2002.06.07 |
| JP特开平5-181049A 1993.07.23 |
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| Publication number | Publication date |
|---|---|
| CN102466842A (en) | 2012-05-23 |
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