CN1744210A - Optical pick-up device regulator - Google Patents
Optical pick-up device regulator Download PDFInfo
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- CN1744210A CN1744210A CN 200410054177 CN200410054177A CN1744210A CN 1744210 A CN1744210 A CN 1744210A CN 200410054177 CN200410054177 CN 200410054177 CN 200410054177 A CN200410054177 A CN 200410054177A CN 1744210 A CN1744210 A CN 1744210A
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- elastic body
- regulator
- lens
- fixed
- optical pickup
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Abstract
The regulator includes following parts: first and second fixed brackets setup correspondingly; being installed between the first fixed bracket and the second fixed bracket, the lens holding frame with focusing lens being installed on is moved together; magnetic bodies around the lens holding frame; first elastomer with its two ends connected to the first fixed bracket and the lens holding frame; second elastomer with its two ends connected to the second fixed bracket and the lens holding frame; first and second fixed parts for connecting elastomer with the lens holding frame respectively and fixing the lens holding frame. Elastomers are fixed in same horizontal level so as to make thickness of the regulator minimum. The elastomers are installed in cross one another so that rigidity is each direction is lowered, especially in vertical direction. Thus, the regulator can be driven by multi spindle flexibly.
Description
(1) technical field
The invention relates to the regulator of optical Pickup device,, and can be applied to the regulator of a kind of optical Pickup device of the microminiature light picker regulator in the optical Pickup device especially about significantly being reduced in the hardness of overlooking on (pitching) direction.
(2) background technology
For improve and mobile phone, PDA mobile apparatus such as (personal digital assistants) between carry out the convenience of exchanges data, the optical storage fetch equipments such as CD driver (CD-ROM), DVD and CD-ROM drive that just need be used for the carrying out external data exchange miniaturization and that becomes continuously with mobile apparatus, therefore, this also just is necessary to impel optical Pickup device in the optical storage fetch equipment miniaturization and that becomes.
The laser beam that the optical Pickup device of the data that are used for reading in the CD and stored utilizes the laser diode in the optical Pickup device to send is converted to optical signalling with the data of storing in the CD, utilize the condenser lens on the regulator that is installed in the optical Pickup device to receive this optical signalling again, convert electric signal to through the light receiving element in the optical Pickup device again, and read the data of being stored by these transfer processes.
The light picker regulator of optical Pickup device can carry out the motion of 2 dimensions according to focusing on focus direction and tracking direction, thereby when being subjected to external vibration etc. and influencing, also can make laser beam on CD, form a certain size focus, recently, in order to carry out more accurate control, the demand of can be in rotation (rolling) direction or overlooking the multiaxis driving regulator that direction moves has been increased.
Fig. 1 to Fig. 2 b is the structural map of existing optical storage fetch equipment.Fig. 1 is the planimetric map of optical storage fetch equipment.Fig. 2 a is the regulator planimetric map of optical storage fetch equipment optical Pickup device.Fig. 2 b is the front view (FV) of Fig. 2 a.
As shown in Figure 1, original optical storage fetch equipment is by constituting with the lower part: serve as to transfer the pick-up feeding motor 60 that pick-up device 50 drives; The guider screw 20 that is connected with the rotating shaft of pick-up feeding motor 60; Be connected the tooth bar 30 of installation mutually with the bolt position of guider screw; The guiding feeder line 10 that combines with tooth bar; The pick-up device 50 that combines with guiding feeder line 10; Guiding guiding feeder line 10 carries out the pick-up transfer shaft 21 of back and forth movement; Be installed in the opposite side of pick-up transfer shaft 21, the main rotating shaft 22 that guiding pick-up device 50 moves.
Shown in Fig. 2 a and Fig. 2 b, the regulator 40 of above-mentioned optical Pickup device 50 is by constituting with the lower part: the top condenser lens 49 of having installed drives the moveable part of focusing and tracking direction motion and supports above-mentioned moveable part, and produces the fixed part in magnetic field.
The said fixing part is made of following each several part: be installed in around the lens holder 44, and form the magnetic 43 in a certain size magnetic field around lens holder 44; Be used for fixing magnetic, and be connected as a single entity with pick-up pedestal 51 and the stand 42 that highlights; Be installed in the fixed support 41 on stand 42 lateral direction; One end is fixed on the face of fixed support 41, and the other end is fixed on the side of lens holder 44, connects and the support moveable part, and drives the elastic body 47 that lens holder 44 moves up and down.
Simultaneously, above-mentioned moveable part is made of following each several part again: make the laser beam of sending from laser diode can be focused into the condenser lens 49 of a certain size focus at the optical disc storage film; Be used for installing the lens holder 44 of condenser lens 49; Be installed in the two ends of lens holder respectively, the tracking coil 45 that lens holder 44 is driven by tracking direction; , be wrapped in lens holder 44 around, the focusing coil 46 that lens holder 44 is driven by focus direction; Be used for above-mentioned elastic body 47 is fixed on elastic body fixed part 48 on the lens holder 44.
Fig. 3 and Fig. 4 are that the concept map that is used for illustrating optical Pickup device conditioner operation principle: Fig. 3 is the figure that is used for illustrating sense of rotation; Fig. 4 is the figure (magnetic field, electric current, power) that is used for illustrating long-range navigation thatch power.
Being to overlook direction to rotate on the x direction of principal axis, is that rotation is rotated on the y direction of principal axis, is that deflection is rotated on the z direction of principal axis.
Here, when focus direction was driven, lens holder 44 did not rotate (direction of overlooking shown in Figure 3 is rotated) on the x direction of principal axis, can carry out the rectilinear motion on the above-below direction, 2 elastic bodys 47 respectively are installed up and down, and adding up comes to 4, is installed in the two ends of lens holder 44 respectively.But just because of this reason, the regulator of original optical Pickup device is higher relatively in the hardness that rotatablely moves or overlook on the direction, is used for need carrying out the multiaxis driving regulator more than 3 of above-mentioned all directions motion and being not suitable for.Because elastic body is separately fixed on the above-below direction of lens holder both sides, make lens holder reach certain thickness, thereby make the thickness of unitary construction become big, this just exists the restriction optical Pickup device regulator problem of miniaturization and that becomes.
(3) summary of the invention
For solving aforesaid existing problem, purpose of the present invention proposes a kind of regulator of optical Pickup device, overlook on the direction in the hardness significantly reducing, can realize miniaturization and, so the present invention is the light picker regulator that is applicable to the multiaxis driving regulator.
For achieving the above object, the regulator of a kind of optical Pickup device of the present invention has the feature that comprises by constituting with the lower part: the 1st fixed support; The 2nd fixed support with the corresponding formation of above-mentioned the 1st fixed support; Be installed between above-mentioned the 1st fixed support and the 2nd fixed support, condenser lens has been installed in the above, and the lens holder that moves with condenser lens; The magnetic that around the said lens bracing frame, forms; The 1st elastic body that two ends are connected with an end of the above-mentioned the 1st a support bracket fastened face and said lens bracing frame respectively; The 2nd elastic body that two ends are connected with an end of the above-mentioned the 2nd a support bracket fastened face and said lens bracing frame respectively; Be used for connecting and fixing above-mentioned the 1st elastic body and said lens bracing frame, and the 1st elastic body fixed part that on said lens bracing frame one end, forms; Be used for connecting and fixing above-mentioned the 2nd elastic body and said lens bracing frame, and the 2nd elastic body fixed part that on said lens bracing frame one end, forms.
, when having realized miniaturization and, also significantly reduced and overlooked hardness on the direction, so it is the light picker regulator that is applicable to the multiaxis driving regulator by the present invention who constitutes as mentioned above.
Here, if above-mentioned the 1st elastic body and above-mentioned the 2nd elastic body are installed on the same surface level comparatively desirable.
Simultaneously, if from the said lens bracing frame, above-mentioned the 1st elastic body relatively produces effect with the words that the 2nd support bracket fastened one side is connected with the 1st fixed support respectively with above-mentioned the 2nd elastic body.
Simultaneously, compare with above-mentioned the 1st fixed support, if above-mentioned the 1st elastic body fixed part is nearer from above-mentioned the 2nd fixed support, compare with above-mentioned the 2nd fixed support, above-mentioned the 2nd elastic body fixed part is comparatively desirable from the nearer words of above-mentioned the 1st fixed support.
Simultaneously, if in above-mentioned the 2nd elastic body fixed part, can set up one to be used for the through hole that the 1st elastic body runs through the 2nd elastic body fixed part and relatively to produce effect.
On the other hand, also can set up one to be used for the through hole that the 2nd elastic body runs through the 1st elastic body fixed part, equally relatively produce effect like this at above-mentioned the 1st elastic body fixed part.
Effect of the present invention:
As discussed above, regulator according to optical Pickup device of the present invention, in the same surface level that originally installs and fixes elastomeric lens carrier up and down, elastic body is installed, the thickness of regulator is minimized, make the installation that crosses one another of above-mentioned elastic body, reduce the hardness on all directions, particularly significantly reduced the hardness of overlooking on the direction, be the multiaxis driving regulator thereby can apply in a flexible way.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
(4) description of drawings
Fig. 1 to Fig. 2 b is the structural map of existing optical storage fetch equipment.
Fig. 1 is the planimetric map of optical storage fetch equipment.
Fig. 2 a is the regulator planimetric map of optical storage fetch equipment optical Pickup device.
Fig. 2 b is the front view (FV) of Fig. 2 a.
Fig. 3 and Fig. 4 are the concept maps that is used for illustrating optical Pickup device conditioner operation principle:
Fig. 3 is the figure that is used for illustrating sense of rotation;
Fig. 4 is the figure that is used for illustrating long-range navigation thatch power.
Fig. 5 a and Fig. 5 b are the regulator pie graphs according to optical Pickup device of the present invention:
Fig. 5 a is a planimetric map;
Fig. 5 b is the front view (FV) of Fig. 5 a.
The symbol description of major part in the accompanying drawing:
100: 111: the 1 fixed supports of light picker regulator
121: the 1 elastic bodys of 112: the 2 fixed supports
142: the 2 elastic body fixed parts of 141: the 1 elastic body fixed parts
141a: through hole 180: lens holder
190: condenser lens
(5) embodiment
Below, just the embodiment of the regulator of foundation optical Pickup device of the present invention is described in detail the present invention with reference to accompanying drawing.
Certainly, when explanation is of the present invention,, will omit the detailed description of known function and formation in order not influence purport of the present invention.
Fig. 5 a and Fig. 5 b are the regulator pie graphs of optical Pickup device of the present invention.Fig. 5 a is a planimetric map.Fig. 5 b is the front view (FV) of Fig. 5 a.
Just as shown in these figures, regulator 100 according to optical Pickup device of the present invention is the same with original regulator, also by condenser lens 190 has been installed, and regulates the moveable part of the motion on focus direction and the tracking direction and support moveable part, and the fixed part that produces magnetic field constitutes.
The said fixing part is by constituting with the lower part: the 1st fixed support 111 of supporting the weight of moveable part; The 2nd fixed support 112 of relative formation with first fixed support; Be positioned between said fixing support (111,112) and the lens support 180, and the stand 131 that becomes one and highlight with pick-up pedestal 151; Be fixed on the one side of the stand 131 on lens holder 180 opposites, around lens mount 180, produce the magnetic 130 in magnetic field; The 1st elastic body 121 that is fixedly connected and forms with the both sides of the one side of the 1st fixed support 111 and lens carrier 180 respectively; The 2nd elastic body 121 that is fixedly connected and forms with a side of the one side of the 2nd fixed support 112 and lens carrier 180 respectively.
Simultaneously, above-mentioned moveable part is by constituting with the lower part: make laser beam focus on the condenser lens 190 that forms a certain size focus on the optical disc storage film; Be installed between the 1st fixed support 111 and the 2nd fixed support 112, condenser lens 190 is installed above it, be used to regulate the lens mount 180 of focus direction and tracking direction; Be installed in respectively on the two ends of lens carrier 180, be used for lens mount 180 is regulated the tracking coil 170 that tracking direction drives; Be wrapped in lens carrier 180 around, be used for lens mount 180 is regulated the focusing coil 181 that focus direction drive; Be used for connecting and fixing the 1st elastic body 121 and lens carrier 180, and the 1st elastic body fixed part 141 that on lens carrier 180 1 ends, forms; Be used for connecting and fixing the 2nd elastic body 122 and lens carrier 180, and the 2nd elastic body fixed part 142 that on lens carrier 180 two ends, forms; The 2nd elastic body 122 connects the through hole 141a that the 1st elastic body fixed part 141 forms.
Here, more satisfactory in order to reduce the hardness of lens carrier 180 on all directions if the 1st elastic body 121 increases certain-length, to compare with the 2nd elastic body fixed part 142, the 1st elastic body fixed part 141 is closer from the 2nd fixed support 112; Similarly, it is more satisfactory that the 2nd elastic body 122 also increases certain-length, compares with the 1st elastic body fixed part 141, and the 2nd elastic body fixed part 142 is closer more satisfactory from the 1st fixed support 111.That is the 1st elastic body 121 and the 2nd elastic body 122 setting that crosses one another.
The lens carrier 180 of Gou Chenging has all diminished in the hardness that each side moves upward as mentioned above, therefore is used for controlling lens carrier 180 required electromotive force and has also just diminished.Particularly, therefore can in the multiaxis driving regulator, use because it can obviously reduce the hardness of overlooking on the direction.
On the other hand, for controlling the motion of lens carrier 180 smoothly, reduce the thickness of lens carrier 180, make that regulator 100 becomes gently, approaches, lacks, miniaturization, if it is better that the 1st elastic body 121 and the 2nd elastic body 122 are installed on the same surface level effect.
Simultaneously, because elastic body (121,122) be installed on the same surface level, just elastic body (121 may take place, 122) phenomenon that interferes with each other between is for head it off, at elastic body fixed part (141,142) form through hole (what show on the figure is to set up through hole 141a on the 1st elastic body fixed part), allow the elastic body that is installed on another elastic body fixed part that does not form through hole pass through this through hole.
Here, the size of above-mentioned through hole 141a should be done more greatly under the situation of not disturbing lens carrier 180 to move in all directions scope as far as possible, and it is comparatively desirable that its shape preferably goes up the long ellipse of end.
On the other hand, two ends at the 1st elastic body 121 and the 2nd elastic body 122 all are fixed on elastic body fixed part (141,142) and fixed support (111,112) on, thereby limited its 3 (x, y is z) under the situation of the motion on the direction (translation), lens carrier 180 can be extended to the length direction of the 1st elastic body 121 and the 2nd elastic body 122, thereby on all directions, can both move.But the problem of Cun Zaiing is in this case: each elastic body (121,122) should be able to be on length direction fully elongation, just need bigger electromotive force for this reason, in some cases, this will cause elastic body (121,122) to be damaged because of tired loading.
In order to address the above problem, at elastic body fixed part (141,142) be used for fixing above-mentioned elastic body (121 on the surface, 122) insert and install an above-mentioned elastic body (121 of hardness ratio on the fixed position, 122) lower relatively the 3rd elastic body (showing on the figure) is used to replace above-mentioned elastic body (121,122) to extend on its length direction, and, use low electromotive force to drive lens carrier 180 and move upward in each side by the 3rd lower elastomeric elongation of hardness ratio.
The present invention is by being installed in the coil in the formed magnetic field of magnetic, according to as labor Lenze's power of producing of above-mentioned Fleming's lefft-hand rule shown in Figure 4 regulator of driving optical Pickup device carry out rectilinear motion or circular motion on all directions of upper and lower, left and right.
Promptly, the concrete condition of the operation of the regulator of optical Pickup device is: the magnetic 130 that dependence is arranged on around the lens carrier 180 forms magnetic field around lens carrier 180, when the focusing coil 181 of putting into magnetic field is transfused to electric current, produce electromotive force in the focusing coil, drive lens carrier 180 and move up and down; Equally, when the tracking coil 170 of putting into magnetic field is transfused to electric current, produce electromotive force in the tracking coil 170, drive lens carrier 180 move left and right, thereby utilize condenser lens 190 on the CD magnetic track, to keep a certain size focus, read the data of being stored on the storage film.
At this moment, each elastic body (121,122) support and be connected with lens carrier 180 that labor Lenze's power and the relation between elastomeric direction of motion and hardness by magnetic field formation make lens carrier 180 carry out the displacement campaign of certain limit along magnetic force direction with fixed support (111,112).
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.
Claims (6)
1, a kind of regulator of optical Pickup device is characterized in that comprising:
The 1st fixed support;
The 2nd fixed support with the corresponding formation of described the 1st fixed support;
Be installed between described the 1st fixed support and the 2nd fixed support, condenser lens has been installed in the above, and the lens holder that moves with condenser lens;
Magnetic in described lens supports frame peripheral formation;
The 1st elastic body that two ends are connected with an end of the described the 1st a support bracket fastened face and described lens holder respectively;
The 2nd elastic body that two ends are connected with an end of the described the 2nd a support bracket fastened face and described lens holder respectively;
Be used for connecting and fixing described the 1st elastic body and described lens holder, and the 1st elastic body fixed part that on described lens holder one end, forms;
Be used for connecting and fixing described the 2nd elastic body and described lens holder, and the 2nd elastic body fixed part that on described lens holder one end, forms.
2, the regulator of optical Pickup device as claimed in claim 1 is characterized in that:
Described the 1st elastic body and described the 2nd elastic body are arranged on the same surface level.
3, the regulator of optical Pickup device as claimed in claim 1 is characterized in that:
Described the 1st elastic body and described the 2nd elastic body are connected with the 2nd support bracket fastened one side with the 1st fixed support respectively from described lens holder.
4, the regulator of optical Pickup device as claimed in claim 2 is characterized in that:
Compare with described the 1st fixed support, described the 1st elastic body fixed part is nearer from described the 2nd fixed support; Compare with described the 2nd fixed support, described the 2nd elastic body fixed part is nearer from described the 1st fixed support.
5, as the regulator of claim 2 or 3 or 4 described optical Pickup devices, it is characterized in that:
Described the 2nd elastic body fixed part can set up one to be used for the through hole that the 1st elastic body runs through the 2nd elastic body fixed part.
6, as the regulator of claim 2 or 3 or 4 described optical Pickup devices, it is characterized in that:
Described the 1st elastic body fixed part can set up one to be used for the through hole that the 2nd elastic body runs through the 1st elastic body fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054177 CN1744210A (en) | 2004-09-01 | 2004-09-01 | Optical pick-up device regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410054177 CN1744210A (en) | 2004-09-01 | 2004-09-01 | Optical pick-up device regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1744210A true CN1744210A (en) | 2006-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410054177 Pending CN1744210A (en) | 2004-09-01 | 2004-09-01 | Optical pick-up device regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1744210A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036004A (en) * | 2009-09-30 | 2011-04-27 | 鸿富锦精密工业（深圳）有限公司 | Imaging module |
-
2004
- 2004-09-01 CN CN 200410054177 patent/CN1744210A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102036004A (en) * | 2009-09-30 | 2011-04-27 | 鸿富锦精密工业（深圳）有限公司 | Imaging module |
| CN102036004B (en) * | 2009-09-30 | 2013-07-03 | 鸿富锦精密工业（深圳）有限公司 | Imaging module |
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| WD01 | Invention patent application deemed withdrawn after publication |