CN101206381A - Optical image-taking structure - Google Patents
Optical image-taking structure Download PDFInfo
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- CN101206381A CN101206381A CNA2006101617358A CN200610161735A CN101206381A CN 101206381 A CN101206381 A CN 101206381A CN A2006101617358 A CNA2006101617358 A CN A2006101617358A CN 200610161735 A CN200610161735 A CN 200610161735A CN 101206381 A CN101206381 A CN 101206381A
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- taking structure
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Abstract
The present invention discloses an optical image capturing structure, comprising a basal plate, a framework, a photosensitive element, a first axial actuator, a second axial actuator and a third axial actuator. The framework relatively moves on the basal plate, while the photosensitive element is arranged inside the framework to capture an optical image; the first axial actuator is connected between the framework and the photosensitive element; the second axial actuator is connected between the framework and the photosensitive element; the third axial actuator is connected between the framework and the basal plate; the first axial actuator, the second axial actuator and the third axial actuator are used to move the photosensitive element in a first axial direction, a second axial direction and a third axial direction, thereby ensuring that the photosensitive element follows optical axis change to shift, and ensuring that the optical image is clearly imaged on the photosensitive element.
Description
Technical field
The present invention relates to a kind of optical image-taking structure, relate in particular to a kind of optical image-taking structure that vibration compensation function and rapid focus function are provided.
Background technology
Development along with science and technology and image transmission technology, existing portable optical capture equipment (as camera cell phone, digital camera, personal digital assistant, flat computer and digital camera etc.) with day by day general, also more and more is subjected to consumers in general's favor along with Development of Multimedia Technology.And extensively use the aid of noting down as daily image for ordinary consumer.
And the consumer is in for the miniaturization of optical image-taking equipment requirements, lightening, par demand, and the capture quality of the subject image that captured is also proposed higher requirement, promptly requires the subject image picture that captured clear.
Optical image-taking equipment generally sets up one group of automatic focusing lens group on optical image-taking equipment, autozoom camera lens for example, and can be positioned at different distance and take at object the time, can reach good focusing effect and picture rich in detail equally.Yet general portable optical capture equipment be the user with the required view data of hand-held picked-up, the image that optical image-taking equipment is captured and may move because of user's step or hand shakes and causes optical image-taking equipment itself to rock.Can make Jiao gather the faint variation of appearance along rocking of optical axis front and back, though can change burnt gathering apart from adjusting by moving lens, still the whole camera lens or the rate travel of lens combination often can't be caught up with the speed that hand shakes and produces.In addition, also have offset light axial mobile, offset movement appears in the image that originally images on the photo-sensitive cell that can make, and causes photo-sensitive cell capture result fuzzy, and the vibrations of this skew optical axis also can't compensate by poly-change of Jiao of camera lens.
Therefore, because general optical image-taking can add vibration compensation function (Digital Image Stabilization; DIS) compensate the problem of image blurring that causes because of light shaft offset, but in fast automatic focusing (AutoFocus; AF) aspect still can't be solved, and therefore designs a kind of optical image-taking structure, makes it have hand and shakes compensation and simultaneously in conjunction with zoom function, become a problem to be solved.
The vibration compensation function of existing optical image-taking structure only can in the light shaft offset phenomenon cause image blurring, can't adjust burnt poly-in real time.
Summary of the invention
Technical matters to be solved by this invention is to provide one to have vibration compensation and simultaneously in conjunction with the optical image-taking structure of zoom function, solve the user simultaneously in use, the problem of image blurring that causes in the different directions vibrations.
For realizing above-described purpose, the present invention discloses a kind of optical image-taking structure, includes a substrate, a framework, a photo-sensitive cell, one first axial actuator, one second axial actuator and one the 3rd axial actuator.Framework relatively moves on substrate, and photo-sensitive cell is installed in the framework, in order to capture an optical imagery.First axial actuator is connected between framework and the photo-sensitive cell, with so that photo-sensitive cell is displaced into one first axial.Second axial actuator is connected between framework and the photo-sensitive cell, with so that photo-sensitive cell is displaced into one second axial.The 3rd axial actuator is connected between framework and the substrate, with so that photo-sensitive cell is displaced into one the 3rd axial.Framework by first axial actuator, second axial actuator and the 3rd axial actuator in first axially, second axially and the 3rd move axially photo-sensitive cell, so as to photo-sensitive cell is changed and displacement with optical axis, so that the optical imagery blur-free imaging that forms through lens focus is in photo-sensitive cell.
The optical image-taking structure that provided is provided effect of the present invention, can carry out vibration compensation and simple focus function simultaneously.And utilize orthogonal three axial actuator and can compensate, and reach complete vibration compensation effect in real time in conjunction with the technology of drive pressure electric material at the vibrations of each direction in the space.In addition, the 3rd axial piezoelectric can be driven simultaneously in order to vibration compensation and focus function.Therefore, the present invention has effectively promoted the pickup quality and the function of the optical image-taking device of general simple light.
Above about content of the present invention explanation and the explanation of following embodiment in order to demonstration with explain principle of the present invention, and provide claim of the present invention further to explain.
Description of drawings
Fig. 1 is the best side isometric view of implementing aspect of optical image-taking structure of the present invention;
Fig. 2 A is the system schematic of optical image-taking structure of the present invention along first and second axial operation;
Fig. 2 B is the system schematic of optical image-taking structure of the present invention along the 3rd axial operation;
Fig. 3 A and Fig. 3 B are the operation chart of first embodiment of the invention;
Fig. 4 A and Fig. 4 B are the operation chart of second embodiment of the invention; And
Fig. 5 A and Fig. 5 B are the focus function operation chart of optical image-taking structure of the present invention.
Wherein, Reference numeral:
100: optical image-taking structure: 110: lens combination
120: substrate: 122: chute
130: framework: 131: Embedded Division
140: photo-sensitive cell: 150: driving circuit
151,156: the first axial actuator 152,157: the second axial actuator
161: the first axial acceleration rule axially quicken to advise at 162: the second
The axial acceleration advised 200 in 163: the three: arithmetic element
L: incident ray
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.
At first, with reference to shown in Figure 1, be the best side isometric view of implementing aspect of optical image-taking structure of the present invention.Optical image-taking structure 100 of the present invention has a lens combination 1 10, a substrate 120, a framework 130, a photo-sensitive cell 140, one first axial actuator 151, one second axial actuator 152 and one the 3rd axial actuator 153.
Wherein lens combination 1 10 comprises at least one convex lens, with so that incident ray L images in the precalculated position.Substrate 120 forms a chute 122 and a fixed leg 155 respectively apart from lens combination 110 1 spacing distances and in the limit, two opposite sides of substrate 120.Framework 130 is vertically installed on the substrate 120, and in the both sides of framework 130 be formed with respectively an Embedded Division 131 in order to the chute 122 that is embedded in substrate 120 in, framework 130 can be relatively moved on substrate 120.Photo-sensitive cell 140 is arranged in the framework 130 by first axial actuator 151 and second axial actuator 152, and with the lens combination 110 in addition imaging that is parallel to each other in order to the incident ray of accepting to assemble via lens combination 110, wherein photo-sensitive cell 140 can be a charge-coupled device (Charge-Coupled Device; CCD) or be one complementary metal-oxide-semiconductor (Complementary Metal-Oxide Semicondutor; CMOS).
Refer again to shown in Figure 1ly, first axial actuator 151 is connected between framework 130 and the photo-sensitive cell 140, in order to fixing photo-sensitive cell 140 and that photo-sensitive cell 140 is displaced into is one first axial.Second axial actuator 152 also is connected between framework 130 and the photo-sensitive cell 140, is positioned at photo-sensitive cell 140 another adjacent side, also in order to fixing photo-sensitive cell 140 and make photo-sensitive cell 140 removable axial in one second.The 3rd axial actuator 153 is connected between the fixed leg 155 and framework of substrate 120, uses so that photo-sensitive cell 140 is removable axial in one the 3rd.Above-mentioned first axially, second axially and the 3rd axial it is orthogonal in twos.
Then, shown in Fig. 2 A, be the system schematic of optical image-taking structure of the present invention along first and second axial operation.First and second axial operation system of optical image-taking structure of the present invention also has one drive circuit 150, one first and axially quickens axially acceleration rule 162 and one arithmetic element 200 of rule 161,1 second.
When having when first axial vibrations takes place, first axially quickens to advise 161 instantaneous accelerations that measure and calculate along first axial vibrations, and record is along the action time of the first axial instantaneous acceleration, and will calculate and must and be sent to arithmetic element 200 action time along the instantaneous acceleration of first axial vibrations.
200 of arithmetic elements are received from and can obtain one first axially movable instantaneous velocity and displacement via computing first instantaneous acceleration and the action times of axially quickening rule 161 outputs, arithmetic element 200 then control export with respect to along one first axial control compensation signal of first axial vibrations to driving circuit 150.
Same, the second axial acceleration rule 162 are connected in arithmetic element 200, the second axial actuator 152 and are connected in driving circuit 150, control second axial actuator 152 by driving circuit 150.When having when second axial vibrations takes place, second axially quickens to advise 162 instantaneous accelerations that measure and calculate along second axial vibrations, and record is along the action time of the second axial instantaneous acceleration, and will calculate and must and be sent to arithmetic element 200 action time along the instantaneous acceleration of second axial vibrations.Driving circuit 150 is received from the second axial control compensation signal of arithmetic element 200 outputs, then provide one second axial driving voltage in order to control second axial actuator 152, make the second axial controller 152 along the second axial start, drive the photo-sensitive cell 140 that second axial actuator 152 connected and move axially along second.
Through the effect of said system, and make photo-sensitive cell 140 simultaneously to be displaced into the two dimensional surface space by first and second axial actuator 151,152, and in real time in response to and the vibrations that suffered from of compensation to solve the problem of image blurring that vibrations cause.
Then, shown in Fig. 1 and Fig. 2 B, Fig. 2 B is the system schematic of optical image-taking structure of the present invention along the 3rd axial operation.The 3rd axial operation system of optical image-taking structure of the present invention has one drive circuit 150, the 3rd and axially quickens rule 163 and one arithmetic element 200.
The 3rd axial the acceleration advises 163, and axially acceleration rule 161,162 are identical with first and second for its mode of operation and signal transmission and binding pass.In addition, because the 3rd also be the optical axis direction of optical image-taking axially, therefore,, can influence the focusing function of optical image-taking along the 3rd axial vibrations.The 3rd axial operation system is because along the 3rd axial control compensation the 3rd axial actuator 153, thereby can reach the function of compensation vibrations and focusing.
Shown in Fig. 3 A and Fig. 3 B, be the operation chart of first embodiment of the invention.In the first embodiment of the invention, first axial actuator 1 51 and second axial actuator 152 utilize a piezoelectric made.Wherein piezoelectric is subjected to electric field (voltage) and does the time spent, then can extend along direction of an electric field for opposing changes, and its transformation period is extremely short.General piezoelectric commonly used is a piezoelectric ceramics, then is meant with ceramic-like as piezoelectric, as barium titanate (BaTiO3), lead zirconium titanate (PZT).Other piezoelectric has the monocrystalline class, as quartz, tourmaline, Luo De salt, tantalates, niobate etc., or film class such as zirconia (ZnO).
When framework 130 and photo-sensitive cell 140 are subjected to the vibrations of a direction, when shaking as the direction of arrow among Fig. 3 A, then can axially quicken rule 161 by first and second, 162 with its along first and second axial instantaneous acceleration numerical value and action time value be sent to arithmetic element 200 and obtain its instantaneous velocity and displacement, arithmetic element 200 then control output with respect to along first and second axial control compensation signal of first and second axial vibrations to driving circuit 150, driving circuit 150 then provides first and second axial driving voltage (electric field) to first and second axial actuator 151 respectively, on 152, in order to the one the second axial actuator 151 along the elongation of first and second the axial dotted arrow among Fig. 3 B piezoelectricity material, 152.Therefore, 140 of photo-sensitive cells that are connected in first and second axial actuator 151,152 move with compensation along first and second axial image shift that vibrations were caused and rock along solid arrow direction among Fig. 3 B.
Same, the 3rd axial actuator 153 also utilizes a piezoelectric made, when arbitrary vibrations not only have first and second axial moving, also include the 3rd axial when mobile, then as above-mentioned method, also be applied to the 3rd and axially go up in order to compensation along the 3rd axial image shift that vibrations caused and rock.
In addition, shown in Fig. 4 A and Fig. 4 B, be the operation chart of second embodiment of the invention.Second embodiment of the invention is to have respectively among second embodiment 151,156 and two corresponding second axial actuator 152,157 of two corresponding first axial actuator with the different of first embodiment, and also is that piezoelectric is made.
With first axially is example, at first, driving circuit 150 provides first axial driving voltage (electric field) elongation that first axial actuator 156 makes in the right side as the direction of arrow among Fig. 4 A, to be embedded in the limit, two opposite sides of photo-sensitive cell 140 with left side first axial actuator 151.When framework 130 and photo-sensitive cell 140 are subjected to the first axial vibrations, when shaking as the direction of arrow among Fig. 4 A, then can export one first axial control compensation signal to driving circuit 150 as axially quickening rule 161 and arithmetic element 200 by first among first embodiment, driving circuit 150 then provide one along the first axial driving voltage (electric field) of dotted arrow direction among Fig. 4 B to first axial actuator 151 of left side, in order to elongation left side first axial actuator 151, and relatively remove the electric field that puts on right side first axial actuator 156 and the shortening that makes, then make to be connected in first axial actuator 151,156 photo-sensitive cell 140 moves with compensation along the first axial image shift that vibrations were caused and rock along solid arrow direction among Fig. 4 B.Same, but above-mentioned axially be that the vibration compensation function of example is also in the control operation of embodiment second axial actuator 152,157 with first.The control operation of the 3rd axial actuator 153 is then identical with first embodiment.
In addition, shown in Fig. 2 B, Fig. 5 A and Fig. 5 B, Fig. 5 A and Fig. 5 B are the focus function operation chart of optical image-taking structure of the present invention.When an object scioptics group 110 focal imagings, if cause because hand vibrations or step move etc. its clearly imaging drop on the place ahead of photo-sensitive cell 140, then the image that receives of photo-sensitive cell can blur because of losing Jiao, shown in Fig. 5 A.
Optical image-taking structure 100 provided by the present invention can utilize the 3rd axial operation system to make its focusing along the 3rd axial control compensation.Shown in Fig. 5 B, because the 3rd also is the optical axis direction of optical image-taking axially, therefore, the 3rd axial operation system is because along the 3rd axial control compensation the 3rd axial actuator 153, the 3rd axial actuator 153 is extended along the direction of arrow, make framework 130 and photo-sensitive cell 140 also along the 3rd position that moves axially to Fig. 5 B, and make clearly imaging just drop on the photo-sensitive cell 140, thereby reach the effect of focusing.
Therefore, as mentioned above, the optical image-taking structure that provided is provided effect of the present invention, and global design one framework can have hand shake compensate function and simple focus function simultaneously.And utilize orthogonal three axial actuator and can compensate, and reach complete vibration compensation effect in real time in conjunction with the technology of drive pressure electric material at the vibrations of each direction in the space.In addition, the 3rd axial piezoelectric can be driven simultaneously in order to vibration compensation and focus function.Therefore, the present invention has effectively promoted the pickup quality and the function of the optical image-taking device of general simple light.
Though the present invention discloses as above with aforesaid embodiment, so it is not in order to limit the present invention.Without departing from the spirit and scope of the present invention, change of being done and retouching all belong to scope of patent protection of the present invention.Please refer to appended claim scope about the protection domain that the present invention defined.
Claims (10)
1. optical image-taking structure in order to the optical imagery of acquisition through a lens focus imaging, is characterized in that this optical image-taking structure includes:
One substrate;
One framework relatively moves on this substrate;
One photo-sensitive cell is installed in this framework, in order to capture this optical imagery;
One first axial actuator is connected between this framework and this photo-sensitive cell, with so that this photo-sensitive cell is displaced into one first axial;
One second axial actuator is connected between this framework and this photo-sensitive cell, with so that this photo-sensitive cell is displaced into one second axial; And
One the 3rd axial actuator is connected between this framework and this substrate, with so that this photo-sensitive cell is displaced into one the 3rd axial.
2. optical image-taking structure as claimed in claim 1 is characterized in that, this first axially, this second axially and the 3rd axially be mutually not vertically.
3. optical image-taking structure as claimed in claim 1, it is characterized in that, this substrate has a chute and a fixed part, and this framework has an Embedded Division in order to embedding this substrate and this framework is moved axially in this chute along the 3rd, and this fixed part is in order to fix the 3rd axial actuator.
4. optical image-taking structure as claimed in claim 1 is characterized in that, this photo-sensitive cell is a charge-coupled device.
5. optical image-taking structure as claimed in claim 1 is characterized in that, this photo-sensitive cell is one complementary metal-oxide-semiconductor.
6. optical image-taking structure as claimed in claim 1 is characterized in that, also has a lens combination, be parallel to this photo-sensitive cell and with this photo-sensitive cell at a distance of a spacing, with so that this optical imagery image on this photo-sensitive cell.
7. optical image-taking structure as claimed in claim 6 is characterized in that this lens combination has at least one convex lens.
8. optical image-taking structure as claimed in claim 1, it is characterized in that, also has one drive circuit, transmit first, second and third axial driving voltage respectively to this first, second and third axial actuator, so that this first, second and third axial actuator respectively moves axially along its correspondence.
9. optical image-taking structure as claimed in claim 8 is characterized in that, also includes:
One first axially quickens rule, in order to calculate this optical image-taking structure along the first axial instantaneous acceleration numerical value that produces and action time value;
One second axially quickens rule, in order to calculate this optical image-taking structure along the second axial instantaneous acceleration numerical value that produces and action time value;
One the 3rd axially quickens rule, in order to calculate this optical image-taking structure along the 3rd axial instantaneous acceleration numerical value that produces and action time value; And
One arithmetic element, in order to receive this first, second and third axially quicken rule instantaneous acceleration numerical value and action time value, and export one first, second and third axial control compensation signal to this driving circuit and control this first, second and third axial actuator respectively through calculation process.
10. optical image-taking structure as claimed in claim 1 is characterized in that, this first axial actuator, this second axial actuator and the 3rd axial actuator utilize piezoelectric made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101617358A CN101206381A (en) | 2006-12-19 | 2006-12-19 | Optical image-taking structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101617358A CN101206381A (en) | 2006-12-19 | 2006-12-19 | Optical image-taking structure |
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| CN101206381A true CN101206381A (en) | 2008-06-25 |
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| CNA2006101617358A Pending CN101206381A (en) | 2006-12-19 | 2006-12-19 | Optical image-taking structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251947A (en) * | 2021-05-20 | 2021-08-13 | 中国科学院光电技术研究所 | Imaging detector system and imaging detector thereof |
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- 2006-12-19 CN CNA2006101617358A patent/CN101206381A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113251947A (en) * | 2021-05-20 | 2021-08-13 | 中国科学院光电技术研究所 | Imaging detector system and imaging detector thereof |
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Open date: 20080625 |