CN100438573C - Small-sized photographic module - Google Patents
Small-sized photographic module Download PDFInfo
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- CN100438573C CN100438573C CNB2006100653075A CN200610065307A CN100438573C CN 100438573 C CN100438573 C CN 100438573C CN B2006100653075 A CNB2006100653075 A CN B2006100653075A CN 200610065307 A CN200610065307 A CN 200610065307A CN 100438573 C CN100438573 C CN 100438573C
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Abstract
The present invention discloses a structure of an mini-type photograph module including: a foundation provided with a straightly advancing cam outer canister which has a straightly advancing cam rail vertical to the foundation; a straightly advancing cam inner canister equipped with photograph lens and glide pieces on its sheath, wherein, the straightly advancing cam inner canister is incrassated with the straightly advancing cam outer canister, and glide pieces can move on the straightly advancing cam rail; a rotating cam, the canister with the rotating cam rail is gradually upward along the canister wall, the rotating cam canister is incrassated outside the straightly advancing cam outer canister, and glide pieces can move on the rotating cam rail; a loop fixed on the outer wall of the rotating cam canister; a twisting spring, winding around the outer wall of the rotating cam canister, with one end fixed on the foundation and another end fixed on the outer wall of the rotating cam canister and electrically connected with the loop; and a magnetic part, incrassated to the foundation, winding around the loop to provide a magnetic field.
Description
Technical field
The present invention relates to a kind of small-sized photographic module (Compact Camera Module), relate in particular to a kind of small-sized photographic module that uses voice coil motor to drive.
Background technology
In recent years, various portable electronic devices all possess the function of photograph, and mobile phone, personal digital assistant etc. all generally possess the function of photograph such as.These electronic installations that possess camera function all need to install small-sized photographic module (Compact Camera Module), to carry out above-mentioned camera function.
Small-sized photographic module is the same with general camera lens modules, all needs power source to drive camera lens and moves and focus on, and could carry out camera function.Existing small-sized photographic module as with the voice coil motor for the drive power source camera lens moves, need utilize springs or metal wire, and for making the device of guiding or involution.(for example drop to ground) when portable electronic devices is impacted, above-mentioned guiding or the resetter of being made up of springs or metal wire has not shock-resistant and the crank-sided shortcoming of phtographic lens.
Summary of the invention
Technical problem to be solved by this invention is providing a kind of small-sized photographic module, in order to overcome the existing not shock-resistant and crank-sided shortcoming of phtographic lens of small-sized photographic module.
For achieving the above object, the invention provides a kind of small-sized photographic module, comprising with following assembly: a pedestal, have and advance the cam urceolus always, directly advance the cam urceolus and have more and at least onely directly advance cam track perpendicular to pedestal; Advance inner core always, interior installing one phtographic lens, and have at least one sliding shoe on the outer wall, directly advance inner core and be sleeved on directly to advance in the cam urceolus, and sliding shoe is slidably in directly advancing in the cam track; One rotating cam tube has a rotating cam rail and is tilted to gradually along its barrel, and the rotating cam tube is sleeved on and directly enters cam urceolus outside, and sliding shoe is slidably in the rotating cam rail; One coil is fixed on the outer wall of rotating cam tube; At least one torque spring is surrounded on the outer wall of rotating cam tube.One end of torque spring is fixed on the pedestal, and the other end is fixed in the rotating cam drum outer wall and electrically connects with coil; One magnetic circuit component is sleeved on the pedestal and is surrounded on coil and a magnetic field is provided.When electric power is fixed in an end of pedestal by torque spring on, supplying with, the magnetic field reciprocation of magnetic force that coil produced and magnetic circuit component, the rotation of driven rotary cam canister, postrotational rotating cam rail makes and directly advances inner core, rise or descend perpendicular to pedestal under the restriction of directly advancing cam track, phtographic lens also can provide suitable position to supply to carry out focusing function along with rising.When the electric power stop supplies, the torque spring that is stretched provides restoring force to make the rotating cam rail be returned to original position, and the position of phtographic lens also makes it carry out focusing function along with adjusting the position.Above-mentioned magnetic circuit component can comprise yoke and permanet magnet, and permanet magnet is arranged at yoke inside, and coil and permanet magnet position are also interchangeable, and make permanet magnet be adsorbed in the rotating cam drum outer wall, and coil then is arranged in the yoke.
From the above, small-sized photographic module design of the present invention uses voice coil motor to be power resources, with the rotating cam tube and directly to advance cam canister be transmission (or guiding) mechanism, cooperate the device of torque spring as involution, therefore, its shock-resistant and difficult inclination of phtographic lens.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 to Fig. 7 is a kind of small-sized photographic module assembling assumption diagram according to a preferred embodiment of the present invention;
Fig. 8 is the explosive view according to a kind of small-sized photographic module of a preferred embodiment of the present invention; And
Fig. 9 is the explosive view according to a kind of small-sized photographic module of another preferred embodiment of the present invention.
Wherein, Reference numeral:
200: small-sized photographic module 202: phtographic lens
204: directly advance inner core 204a/204b: sliding shoe
206: pedestal 206a/206b: electrode column
207: directly advance cam urceolus 207a: directly advance cam track
208: rotating cam tube 208b: salient point
208a: rotating cam rail 210: coil
210a: connecting line 212: torque spring
212a/212b: link 214: yoke
216: permanet magnet 218: loam cake
218a: opening
Embodiment
As mentioned above, the invention provides small-sized photographic module design, below will cooperate preferred embodiment to describe this design in detail.
As shown in Figure 7, it is the stereoscopic figure according to a kind of small-sized photographic module of a preferred embodiment of the present invention.Small-sized photographic module 200 can be installed in the electronic installation that need possess camera function, and the function of phtographic lens 202 adjustable positions is provided, and just can provide to carry out the function that focuses on.Below will small-sized photographic module 200 thin bilge construction from inside to outside be described by Fig. 1 to Fig. 7.
Fig. 1 to Fig. 7 is a kind of small-sized photographic module assembling assumption diagram according to a preferred embodiment of the present invention.Fig. 8 is the explosive view according to a kind of small-sized photographic module of a preferred embodiment of the present invention.
As Fig. 1 and shown in Figure 8, phtographic lens 202 is fixed in and directly advances in the inner core 204.Directly advance on the outer wall of inner core 204 and have sliding shoe 204a/204b.
As Fig. 2 and shown in Figure 8, directly advance inner core 204 and then be sleeved on directly advancing in the cam urceolus 207 on the pedestal 206, and sliding shoe 204a/204b can be sticked in two and directly advances in the cam track 207a.Directly advancing cam track 207a is a strip breach perpendicular to pedestal 206, and limit slippage piece 204a/204b can't rotate, but can make directly to advance inner core 204 and move up and down perpendicular to pedestal 206.Therefore, phtographic lens 202 also can move up and down, and just can provide to carry out the function that focuses on.Pedestal 206 also has two electrode column 206a/206b, and power supply can be provided whereby.
As Fig. 3 and shown in Figure 8, rotating cam tube 208 then is sleeved on and directly advances outside the cam urceolus 207, and sliding shoe 204a (protruding from directly to advance outside the cam track 207a) is sticked in the rotating cam rail 208a simultaneously.Rotating cam tube 208 can be with respect to directly advancing cam urceolus 207 or directly advancing inner core 204 and rotate.Because rotating cam rail 208a is a strip perforate that is tilted to gradually along rotating cam tube 208 barrels, so the position that rotating cam tube 208 can improve or reduce sliding shoe 204a when rotating.Limited because sliding shoe 204a also directly advances cam track 207a simultaneously, sliding shoe 204a can only or reduce its position perpendicular to pedestal 206 raisings, rotates and can't make annular.Phtographic lens 202 and directly advance inner core 204 and also move up and down simultaneously perpendicular to pedestal 206.Also be provided with coil 210 on the outer wall of rotating cam tube 208.
As Fig. 4 and shown in Figure 8, torque spring 212 then is arranged at the outside of rotating cam tube 208 around rotating cam tube 208.The link 212a of torque spring 212 catches on electrode column 206a, and another link 212b is welded on the salient point 208b on rotating cam tube 208 outer walls, and by connecting line 210a and coil 210 electric connections.Fig. 4 is two torque springs, all connects pedestal 206 and rotating cam tube 208 according to aforesaid way.In this preferred embodiment, the function of torque spring 212 also comprises the function that conduction is provided except the elastic force of replying after rotating cam tube 208 rotates is provided.
As Fig. 5 and shown in Figure 8, a circular yoke 214 has permanet magnet 216 and is adsorbed in its inwall.
As Fig. 6 and shown in Figure 8, be covered on the pedestal 206 after yoke among Fig. 5 214 is spun upside down and coil 210 outside, and expose phtographic lens 202.
As shown in Figures 7 and 8, loam cake 218 is covered on the pedestal 206 at last, and exposes phtographic lens 202 with opening 218a.
When electric power is fixed in last supply of an end 212a of pedestal 206 by torque spring 212, magnetic force and permanet magnet 216 that coil 210 is produced repel each other, make 208 rotations of rotating cam tube, postrotational rotating cam rail 208a makes and directly advances inner core 204, under the restriction of directly advancing cam track 207a, rise or descend perpendicular to pedestal 206, phtographic lens 202 also can be adjusted to suitable position along with rising or descending, and makes phtographic lens 202 carry out focusing function.
When the electric power stop supplies, the torque spring 212 that is stretched provides rotating cam rail 208a to be returned to original position, and phtographic lens also can provide suitable position to carry out focusing function along with rising or descending.
As shown in Figure 9, it is the explosive view according to a kind of small-sized photographic module of another preferred embodiment of the present invention.This preferred embodiment and the different places of embodiment of Fig. 8 are the exchange of coil 210 and permanet magnet 216 positions.In other words, the permanet magnet 216 in this preferred embodiment is adsorbed in rotating cam tube 208 outer walls, and coil 210 then is arranged in the yoke 214.Therefore, torque spring 212 does not need and permanet magnet 216 electrically connects, and the coils 210 that are arranged in the yoke 214 then need electrically connect with electrode column 206a, just can provide to drive the required power source of rotating cam tube 208.
By the invention described above preferred embodiment as can be known, use small-sized photographic module design of the present invention, use voice coil motor to be power resources, with the rotating cam tube and directly to advance cam canister be transmission (or guiding) mechanism, cooperate the device of torque spring, can solve the existing not shock-resistant and crank-sided shortcoming of phtographic lens of small-sized photographic module as involution.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (9)
1. a small-sized photographic module is characterized in that, comprises at least:
One pedestal has and advances the cam urceolus always, and this directly advances the cam urceolus also has and at least onely directly advance cam track perpendicular to this pedestal;
Advance inner core always, interior installing one phtographic lens, and have at least one sliding shoe on the outer wall, this directly advances inner core and is sleeved on this and directly advances in the cam urceolus, and this sliding shoe passes this and directly advances cam track and can directly advance cam track along this and slide;
One rotating cam tube has a rotating cam rail on its inwall is tilted to gradually, and this rotating cam tube is sleeved on this and directly advances outside the cam urceolus, and this sliding shoe slides along this rotating cam rail;
At least one coil is fixed on the outer wall of this rotating cam tube;
At least one torque spring is surrounded on the outer wall of this rotating cam tube, and an end of this torque spring is fixed on the pedestal, and the other end is fixed in this rotating cam drum outer wall and electrically connects with this coil; And
One magnetic circuit component provides a magnetic field, and this magnetic part is sleeved on this pedestal and around this coil,
When this torque spring is supplied with this coil electric power, this magnetic field reciprocation of the magnetic force that this coil produced and this magnetic circuit component, make this rotating cam tube rotation, postrotational this rotating cam rail drives this and directly advances inner core, directly advance under the restriction of cam track at this and to rise or to descend perpendicular to this pedestal, this phtographic lens also moves to carry out focusing function thereupon
When this electric power stop supplies, this torque spring provides restoring force to make this rotating cam rail be returned to original position.
2. small-sized photographic module according to claim 1 is characterized in that, this directly advances the breach that cam track is a strip.
3. small-sized photographic module according to claim 1 is characterized in that, this rotating cam rail is the perforate of a strip.
4. small-sized photographic module according to claim 1 is characterized in that, also comprises a loam cake, is covered on this pedestal, and exposes this phtographic lens.
5. small-sized photographic module according to claim 1 is characterized in that, this magnetic circuit component comprises a yoke and a permanet magnet, and this permanet magnet is arranged at this yoke inside.
6. a small-sized photographic module is characterized in that, comprises at least:
One pedestal has and advances the cam urceolus always, and this directly advances the cam urceolus also has and at least onely directly advance cam track perpendicular to this pedestal;
Advance inner core always, interior installing one phtographic lens, and have at least one sliding shoe on the outer wall, this directly advances inner core and is sleeved on this and directly advances in the cam urceolus, and this sliding shoe directly advances cam track along this and slides;
One rotating cam tube has a rotating cam rail on its inwall is tilted to gradually, and this rotating cam tube is sleeved on this and directly advances outside the cam urceolus, and this sliding shoe passes this and directly advances cam track and can slide along this rotating cam rail;
At least one permanet magnet is fixed in the outer wall of this rotating cam tube;
At least one torque spring, around the outer wall of this rotating cam tube, an end of this torque spring is fixed on the pedestal, and the other end is fixed in this rotating cam drum outer wall; And
One yoke, in be provided with at least one coil, this yoke is sleeved on this pedestal and around this permanet magnet,
When supplying with this coil one electric power, the magnetic force that this coil produced and this permanet magnet reciprocation, make this rotating cam tube rotation, postrotational this rotating cam rail makes this directly advance inner core, directly advance under the restriction of cam track at this and to rise or to descend perpendicular to this pedestal, this phtographic lens also moves to carry out focusing function thereupon
When this electric power stop supplies, this torque spring provides restoring force to make this rotating cam rail be returned to original position.
7. small-sized photographic module according to claim 6 is characterized in that, this directly advances the breach that cam track is a strip.
8. small-sized photographic module according to claim 6 is characterized in that, this rotating cam rail is the perforate of a strip.
9. small-sized photographic module according to claim 6 is characterized in that, also comprises a loam cake, is covered on this pedestal, and exposes this phtographic lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100653075A CN100438573C (en) | 2006-03-17 | 2006-03-17 | Small-sized photographic module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100653075A CN100438573C (en) | 2006-03-17 | 2006-03-17 | Small-sized photographic module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101039382A CN101039382A (en) | 2007-09-19 |
| CN100438573C true CN100438573C (en) | 2008-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100653075A Active CN100438573C (en) | 2006-03-17 | 2006-03-17 | Small-sized photographic module |
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| Country | Link |
|---|---|
| CN (1) | CN100438573C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5327478B2 (en) * | 2010-10-18 | 2013-10-30 | ミツミ電機株式会社 | Lens drive device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934789A (en) * | 1987-03-31 | 1990-06-19 | Norbert Lemke | Lens mounting for a varifocal lens for TV cameras |
| JPH09297257A (en) * | 1996-05-08 | 1997-11-18 | Fuji Photo Film Co Ltd | Zoom lens |
| US6115197A (en) * | 1997-11-26 | 2000-09-05 | Minolta Co., Ltd. | Zoom lens barrel |
| CN2539201Y (en) * | 2002-04-29 | 2003-03-05 | 金宝电子工业股份有限公司 | Automatic focusing mechanism for digital camera |
| CN1490662A (en) * | 2002-10-18 | 2004-04-21 | �����ɷ� | Automatic zoom lens focusing device |
| JP2004184776A (en) * | 2002-12-04 | 2004-07-02 | Fuji Photo Optical Co Ltd | Electronic apparatus with camera |
-
2006
- 2006-03-17 CN CNB2006100653075A patent/CN100438573C/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4934789A (en) * | 1987-03-31 | 1990-06-19 | Norbert Lemke | Lens mounting for a varifocal lens for TV cameras |
| JPH09297257A (en) * | 1996-05-08 | 1997-11-18 | Fuji Photo Film Co Ltd | Zoom lens |
| US6115197A (en) * | 1997-11-26 | 2000-09-05 | Minolta Co., Ltd. | Zoom lens barrel |
| CN2539201Y (en) * | 2002-04-29 | 2003-03-05 | 金宝电子工业股份有限公司 | Automatic focusing mechanism for digital camera |
| CN1490662A (en) * | 2002-10-18 | 2004-04-21 | �����ɷ� | Automatic zoom lens focusing device |
| JP2004184776A (en) * | 2002-12-04 | 2004-07-02 | Fuji Photo Optical Co Ltd | Electronic apparatus with camera |
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| Publication number | Publication date |
|---|---|
| CN101039382A (en) | 2007-09-19 |
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