CN101237526A - Image pick-up module and adjusting device - Google Patents
Image pick-up module and adjusting device Download PDFInfo
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- CN101237526A CN101237526A CNA2007103001078A CN200710300107A CN101237526A CN 101237526 A CN101237526 A CN 101237526A CN A2007103001078 A CNA2007103001078 A CN A2007103001078A CN 200710300107 A CN200710300107 A CN 200710300107A CN 101237526 A CN101237526 A CN 101237526A
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Abstract
The invention provides a small imaging module comprising from an imaging optical system to an imaging component with high performance entirely. A lens column unit (2) is integrated with an imaging circuit unit (1); an imaging component unit (51) which outputs an imaged picture as digital image data is arranged in the imaging circuit unit (1); the imaging component unit (51) is provided with: an imaging component (61) for photoelectric conversion of the imaged picture; an A/D conversion circuit (202) for digital conversion of the output signal; a storage circuit (205) for storing adjustment value matching the lens column unit (2) and the imaging circuit unit (1); a modification circuit (204) for correcting output of the A/D conversion circuit (202) according to the adjustment value; the adjustment value of the imaging module (100) is stored inside the imaging module, which is integrated with the imaging module (100).
Description
Technical field
The present invention relates to photographing module and adjusting device, be specifically related to the so-called photographing module that constitutes by lens unit and imaging circuit unit and the adjusting device of this photographing module.
Background technology
Camera heads such as digital camera are made of a plurality of unit combination.Wherein, the photographing module that has especially made up lens unit and imaging circuit unit is the major part of camera head.In recent years, this photographing module monomer also becomes trading object.
; digital camera is advancing miniaturization in recent years; also strong request photographing module miniaturization has proposed the technology (for example with reference to patent documentation 1 and patent documentation 2) of on installation base plate high-efficient disposition imaging apparatus packaging body and peripheral circuit packaging body thereof for this reason.And, when concluding the business, lens unit and imaging circuit unit need be merged into a single whole, and require to guarantee the precision of matching of both photographing modules with the photographing module monomer.Patent documentation 3 discloses following technology, in order to realize having generally the photographing module of high optical property, utilize imaging apparatus to detect the value of the parameter of the optical property of representing photographic optical system, the position of imaging apparatus and optical axis are moved abreast according to this detected value.
As mentioned above, though proposed various schemes,, except that imaging apparatus, also need various circuit such as imaging apparatus drive circuit, analog signal processing circuit, A/D convertor circuit as the circuit of camera system about the miniaturization of photographing module.Therefore, in the installation method in the past that various IC packaging bodies is configured on the substrate, substrate area increases, and is difficult to realize the miniaturization of photographing module.And the matching problem when making lens unit and imaging circuit unit integral neither only can fully solve by mechanical adjustment.
Summary of the invention
The present invention In view of the foregoing proposes, and its purpose is, provides a kind of and comprises that the integral body from the photographic optical system to the imaging apparatus has realized high-performance and small-sized photographing module and adjusting device.
In order to achieve the above object, make lens unit and imaging circuit unit integral in the photographing module that the 1st invention relates to, above-mentioned imaging circuit unit has the single imaging apparatus packaging body of shot object image as DID output, and this imaging apparatus packaging body comprises: the imaging apparatus that above-mentioned shot object image is carried out opto-electronic conversion; The output signal of this imaging apparatus is carried out the A/D change-over circuit of digital translation; Processing is repaired in output to above-mentioned A/D change-over circuit, so that the optical axis of the above-mentioned lens unit adjustment circuit consistent with picture centre; And the memory circuit of the data of the scope of the above-mentioned finishing processing of storage representation.
And the photographing module that the 2nd invention relates to is in above-mentioned the 1st invention, and above-mentioned memory circuit is a nonvolatile memory.
In addition, the photographing module that the 3rd invention relates to is in above-mentioned the 1st invention, and above-mentioned memory circuit can be stored the optical aberration of above-mentioned lens unit.
In addition, the 4th adjusting device that can be connected to photographing module that relates to of invention, in above-mentioned the 1st invention, data that can the scope that the above-mentioned finishing of storage representation is handled in above-mentioned memory circuit.
In order to achieve the above object, the adjusting device of the photographing module that the 5th invention relates to, lens unit and imaging circuit unit integral in the above-mentioned photographing module, this adjusting device comprises: the adjusted value arithmetic element, it carries out the output of the imaging apparatus of opto-electronic conversion to shot object image according to being configured in above-mentioned imaging circuit unit in, obtains the data that expression is used to make the scope of the optical axis of the above-mentioned lens unit finishing processing consistent with picture centre; And transmitting element, its above-mentioned adjusted value of obtaining by this arithmetic element sends to the memory circuit in the above-mentioned photographing module.
According to the present invention, carry out the coupling of lens unit and imaging circuit unit, perhaps according to depending on that the performance data of the combination of lens unit and imaging circuit unit adjusts, so can provide realized high performance and small-sized photographing module and adjusting device a kind of comprising to imaging apparatus integral body from photographic optical system.
Description of drawings
Fig. 1 is the stereoscopic figure of the overview of the photographing module that relates to of expression an embodiment of the invention.
Fig. 2 is the exploded perspective view of image pickup part that constitutes the part of the photographing module that an embodiment of the invention relate to.
Fig. 3 is the profile of the camera element unit of an embodiment of the invention.
Fig. 4 is the photographing module of an embodiment of the invention and the circuit diagram of adjusting device.
Fig. 5 is the process chart of assembling procedure of the photographing module of expression an embodiment of the invention.
Fig. 6 is the flow chart that the adjustment of the photographing module of expression an embodiment of the invention is moved.
Fig. 7 is the figure of notion of adjustment action of the photographing module of expression an embodiment of the invention, is to have taken the image of measuring graph card (A), but (B) is the figure of the finishing scope of expression camera watch region.
Label declaration
1 imaging circuit unit; 2 lens barrel unit; The 2a lens barrel; The 2b photographic optical system; 2c focusing motor; 2d zoom motor; 4 light intensity adjusting mechanisms; 5 light intensity adjusting mechanisms; 6 lens location testing agencies; 7 lens driving mechanisms; 10 pedestals; The 10x openning; 11 the 1st move frame; 11c the 1st holding section; 11d the 1st test section; 11e the 1st notch part; 12 the 1st location leading axles; 13 the 1st force application springs; 14 the 1st driving mechanism portions; 15 the 1st motors; 16 the 1st pinions; 17 the 1st gears; 18 the 1st leading screws; 19 the 1st nuts; 19a rotates restrictions; 20 the 1st drive division pressing plates; The 21a screw; The 21b screw; 22 the 1st rotations stop to use leading axle; 24 the 1st position-detection sensors; 31 the 2nd move frame; 31c the 2nd holding section; 31d the 2nd test section; 31e the 2nd notch part; The 31x openning; 32 the 2nd location leading axles; 33 the 2nd force application springs; 34 the 2nd driving mechanism portions; 35 the 2nd motors; 36 the 2nd pinions; 37 the 2nd gears; 38 the 2nd leading screws; 39 the 2nd nuts; 39a rotates restrictions; 40 the 3rd drive division pressing plates; The 41a screw; The 41b screw; 42 the 2nd rotations stop to use leading axle; 43 the 2nd rotation force application springs; 44 the 2nd position-detection sensors; 50 camera element units; 51 imaging apparatus portions; 52 flexible printing substrates; 54 seal members; 55 low pass filters, infrared filter; 56 anti-dazzling screens; 57 LPF pressing plates; 61 imaging apparatuss; 62 the 1st circuit substrates; 63 the 2nd circuit substrates; The 64a partition; The 64b partition; 65 closing lines; 66 intermediate plates (interposer); 67 electrodes; 68 cloches; 69 packaging bodies; 80 mobile unit; 100 photographing modules; 201 analog signal processing circuits; The 202A/D change-over circuit; 203 interim memories; 204 reconditioning circuits; 205 memory circuits; 206 imaging apparatus drive circuits; The 211 the 1st, the 2nd position-detection sensor; The 213 the 1st, the 2nd driving mechanism; 215 shake transducers; 216 jitter correction computing circuits; 217 jitter correction drive circuits; 300 adjusting devices; 301 cyclelogs (CPU); 303 data/address buss; 311 image processing circuits; 313 SDRAM control circuits; 315 SDRAM; 317 imput output circuits; 319 switch testing circuits; 321 key board units; 323 video signal output circuits; 325 LCD monitor drive circuits; 327 LCD monitor; 331 measure graph card; 351 optical axis centers (point of graph card); 353 picture centers; But 361 camera watch regions; Cut the position before 363 adjustment; 365 finishing coordinates; 367 adjust preceding finishing scope; 369 adjust back finishing scope.
Embodiment
Below, with reference to accompanying drawing and use and to have used photographing module of the present invention and adjusting device explanation thereof preferred embodiment.This photographing module has: the photographic optical system that can change focal length; To carry out the imaging apparatus of opto-electronic conversion by the shot object image of this photographic optical system imaging; Processing is from the circuit of the picture signal of this imaging apparatus output.And, also have the shake detecting sensor that detects amount of jitter; Picture blurring compensation device with the influence of removing shake according to the output of this transducer.In addition, be used to make the optical axis of photographic optical system and the consistent data (finishing coordinate) of picture centre of view data with the adjusting device detection that this photographing module is used in combination, and be written in the interior memory circuit of photographing module.
Fig. 1 is the stereoscopic figure when the phtographic lens side is watched the photographing module 100 of the digital camera that embodiments of the present invention relate to.Photographing module 100 is made of the imaging circuit unit 1 and the lens barrel unit 2 that have as image shake correction function.Lens barrel unit 2 comprises a plurality of opticses, comprises with lower part etc.: the photographic optical system 2b of imaging shot object image; Lens barrel 2a, it by constituting at a plurality of lens barrels that keep this photographic optical system 2b on the optical axis direction of photographic optical system 2b etc. with moving freely; Motor 2c is used in focusing, the lens barrel of the optical system that its maintenance focal adjustments that is used for driving this lens barrel 2a is used; Zoom motor 2d, its maintenance that is used for driving lens barrel 2a becomes the doubly lens barrel of the optical system of action; Portion of mechanism, it will be focused and be connected with each self-corresponding lens barrel with motor 2d with motor 2c and zoom, and transmission of drive force; Light intensity adjusting mechanism, it comprises aperture or the ND filter of regulating the subject light quantity.
By imaging circuit unit 1 being assembled on this lens barrel unit 2, constitute photographing module 100.During this situation, the pedestal 10 as the basic comprising parts of imaging circuit unit 1 is fixedly installed on the base portion of lens barrel unit 2.At this moment, close the position of lens barrel unit 2 and imaging circuit unit 1 is to make the central point of sensitive surface of the interior imaging apparatus 61 (with reference to Fig. 4) of optical axis and the imaging apparatus portion 51 (with reference to Fig. 2) of photographic optical system 2b of lens barrel unit 2 roughly consistent, and makes the optical axis of photographic optical system 2b vertical with the sensitive surface of imaging apparatus portion 51.In addition, as hereinafter described, the picture centre of the optical axis of photographic optical system 2b and imaging apparatus 61 is electrically adjusted by adjusting device 300.
Below, use Fig. 2 to specify the structure of imaging circuit unit 1.This imaging circuit unit 1 is moved by pedestal the 10, the 1st mainly that frame the 11, the 2nd moves frame the 14, the 2nd driving mechanism portion 34 of the 31, the 1st driving mechanism portion and camera element unit 50 constitutes.Pedestal 10 is basic comprising parts, and the 1st moves frame 11 is bearing on the pedestal 10 in displaceable mode, and the 2nd moves frame 31 is bearing in the 1st in displaceable mode and moves on the frame 11.Camera element unit 50 is supported in the 2nd and moves on the frame 31, has imaging apparatus portion 51.In imaging apparatus portion 51, be provided with imaging apparatus 61 as shown in Figure 3.The 1st driving mechanism portion 14 is fixedly installed on the pedestal 10, comprise drive source and driving mechanism, it is used for making has assembled the 1st and moves module units under the state that frame the 11, the 2nd moves frame 31 and camera element unit 50 (following this module units is called mobile unit) 80 and be shifted in the 1st direction (Fig. 2 is along the direction of arrow Y).And the 2nd driving mechanism portion 34 is fixedly installed on the pedestal 10, comprises drive source and driving mechanism, and it is used for making the 2nd to move frame 31 and camera element unit 50 is shifted in the 2nd direction (Fig. 2 is along the direction of arrow X).
Described pedestal 10 is the frame shape parts that partly have openning 10x in substantial middle, is fixed with the 1st driving mechanism portion 14 and the 2nd driving mechanism portion 34.Wherein, the 1st driving mechanism portion 14 is configured in the upside of pedestal 14, the 2nd driving mechanism portion 34 be configured in the zone of extending from the zone that disposes the 1st driving mechanism portion 14 along the 1st direction (Y direction) near.
The 1st driving mechanism portion 14 is by constituting with lower part etc.: the 1st motor 15, and it is utilized the predetermined position that screw 21a is fixedly installed on pedestal 10, is used to drive the 1st to move frame; The 1st pinion 16, it is fixedly installed on an end of the rotating shaft of the 1st motor 15; The 1st gear 17 with 16 engagements of the 1st pinion; The 1st leading screw 18, its by axle be bearing in the coaxial axle of the 1st gear 17 on, drive by the 1st motor 15; The 1st nut 19, it passes through the rotation of the 1st leading screw 18, and is shifted along the 1st direction.And, be provided with at the predetermined position of pedestal 10 under the state of each component parts of the 1st driving mechanism portion 14, utilize screw 21b to fixedly install the 1st drive division pressing plate 20, so that it is from these component parts of outer side covers.
In addition, the 1st nut 19 partly is formed with the negative thread portion of meshing with the 1st leading screw 18 in its substantial middle, and have rotation restrictions 19a, it moves on the predetermined engaging position of frame 11 by being fastened on the 1st, self follows the rotation of the 1st leading screw 18 and rotates thereby limit the 1st nut 19.And an end of the 1st leading screw 18 is bearing on the 1st drive division pressing plate 20 free to rotate by axle.In addition, its other end is supported to free to rotate by axle on the fixed part of pedestal 10.Therefore, according to this structure, when the 1st motor 15 drove, the 1st pinion 16 rotated, and rotates in the same direction by the 1st gear 17, the 1 leading screws 18 with its engagement.Follow the 1st leading screw 18 to rotate, the 1st nut 19 is gone up in the 1st direction (the Y direction among Fig. 2) and is moved.
Under the state of having assembled imaging circuit unit 1, the 1st nut 19 of the 1st driving mechanism portion 14 is provided as butt and is fastened on the 1st and moves on the inside portion of the 1st holding section 11c of frame 11.And, on the 1st holding section 11c, be formed with the 1st notch part 11e that the cross section roughly is the C word shape.The 1st notch part 11e is in order to ensure the butt of the 1st holding section 11c and the 1st nut 19, makes the 1st leading screw 18 can not interfere and be provided with simultaneously.In addition, when watching imaging circuit unit 11 from face side, the position that the 1st nut 19 engages with the 1st holding section 11c is in the 1st force application spring 13 and the 1st is located with the zone between the leading axle 12.
Near the 1st driving mechanism portion 14, the 1st position-detection sensor 24 is fixedly installed on the predetermined fixed part of pedestal 10.Corresponding to the sensor part of the 1st position-detection sensor 24, move frame 11 sides the 1st and be provided with the 1st test section 11d.Follow the 1st to move frame 11 and move, the 1st test section 11d is by the sensor part of the 1st position-detection sensor 24.Thus, the 1st position-detection sensor 24 can detect the 1st and move moving of frame 11.
The 2nd driving mechanism portion 34 has the identical structure with above-mentioned the 1st driving mechanism portion 14 basically, by constituting with lower part etc.: the 2nd motor 35, it is utilized the predetermined position that screw 41a is fixedly installed on pedestal 10, is used to drive the 2nd to move frame 31; The 2nd pinion 36, it is fixedly installed on an end of the rotating shaft of the 2nd motor 35; The 2nd gear 37 with 36 engagements of the 2nd pinion; The 2nd leading screw 38, its by axle be bearing in the coaxial axle of the 2nd gear 37 on, by the 2nd motor driven; The 2nd nut 39, itself and the 2nd leading screw 38 mesh, and by the rotation of the 2nd leading screw 38, are shifted along the 2nd direction (directions X among Fig. 2).And, under the state of each component parts that is provided with the 2nd driving mechanism portion 34 on the predetermined position of pedestal 10, utilize screw 41b to fixedly install the 2nd drive division pressing plate 40, so that it is from these component parts of outer side covers.
In addition, the 2nd nut 39 partly is formed with the negative thread portion of meshing with the 2nd leading screw 38 in its substantial middle, and has rotation restrictions 39a outside on the part of circumference, it is by on the engaging position that is fastened on pedestal 10, self follows the rotation of the 2nd leading screw 38 and rotates thereby limit the 2nd nut 39.And an end of the 2nd leading screw 38 is bearing on the 2nd drive division pressing plate 40 free to rotate by axle.In addition, its other end is supported to free to rotate by axle on the fixed part of pedestal 10.Therefore, according to this structure, when the 2nd motor 35 drove, the 2nd pinion 36 rotated, and rotates in the same direction by engagement the 2nd gear 37, the 2 leading screws 38 thereon.Follow the 2nd leading screw 38 to rotate, the 2nd nut 39 is gone up in the 2nd direction (directions X among Fig. 2) and is moved.
Under the state of having assembled imaging circuit unit 1, the 2nd nut 39 of the 2nd driving mechanism portion 34 is provided as butt and is fastened on and the 2nd moves on the inside part of the 2nd holding section 31c that frame 31 is provided with all-in-one-piece engaging part 45.The 2nd holding section 31 has the cross section and roughly be the 2nd notch part 31e U word shape, that extend to form on the 1st direction (the Y direction among Fig. 2).The 2nd notch part 31e is used for moving frame 31 the 2nd and follows the 1st to move frame 11 along the displacement of the 1st direction and when being shifted in the same direction, the butt position of the 2nd holding section 31 and the 2nd nut 39 is shifted along equidirectional (the 1st direction).At this moment, in order to ensure the butt state of both (the 2nd holding section 31c and the 2nd nut 39), and make the 2nd leading screw 38 not interfere the 2nd holding section 31c, and be provided with the 2nd holding section 31e.
The 2nd notch part 31e is configured to surround the 2nd leading screw 38, and extends to form on the 1st direction (the Y direction among Fig. 2).And the breach amount of the 2nd notch part 31e is set to greater than the 1st and moves the amount of movement of frame 11 along the 1st direction.And the 2nd holding section 31c and the 2nd nut 39 are configured in the zone that will dispose the 1st driving mechanism 14 near zone that the 1st direction is extended.
Near the 2nd driving mechanism portion 34, the 2nd position-detection sensor 44 is fixedly installed on the predetermined fixed part of pedestal 10.Corresponding to the sensor part of the 2nd position-detection sensor 44, move frame 31 sides the 2nd and be provided with the 2nd test section 31d.Follow the 2nd to move frame 31 and move, the 2nd test section 31d is by the sensor part of the 2nd position-detection sensor 44.Thus, the 2nd position-detection sensor 44 can detect the 2nd and move moving of frame 31.
The 1st to move frame 11 be the frame shape parts that partly have openning 11x in substantial middle as previously described, is bearing on the pedestal 10 in displaceable mode.And the 1st moves frame 11 by being bearing on the pedestal 10 along the mode of the 1st direction in the face parallel with the sensitive surface of imaging apparatus portion 51 (the Y direction among Fig. 2) displacement.In order to carry out this displacement, the 1st moves frame 11 stops with leading axle 22 with leading axle 12 and the 1st rotation by the 1st location, being supported on the pedestal 10 along the mode of the 1st direction displacement, the 1st location is the 1st location leading axles with leading axle 12, it is the bolster that frame 11 is moved in supporting the 1st, to stop with leading axle 22 be to guide the 1st to move frame 11 along the 1st direction in the 1st rotation, and limit the 1st and move frame 11 and rotate with the 1st of leading axle 12 rotations around the 1st location and stop to use leading axle.
Move the 1st and to be hung with the 1st force application spring 13 between frame 11 and the pedestal 10, it is made of austerity wind spring etc., moves frame 11 application of forces along the 1st direction (the Y direction among Fig. 2) to the 1st.The 1st force application spring 13 the 1st location with leading axle 12 near, stop sidepiece with leading axle 22 along the 1st rotation and be set up in parallel with the 1st location and use the long axis direction of leading axle 12 parallel.And, near stopping with leading axle 22, the 1st rotation is provided with the 1st rotation force application spring 23, it is made of wind spring of extensibility etc., moves frame 11 application of forces along the 1st direction to the 1st, and moves frame 11 to the 1st be rotated the application of force in the face parallel with the sensitive surface of imaging apparatus portion 51.
Be roughly equidirectional by the application of force direction that makes the 1st force application spring 13 and the 1st rotation force application spring 23, and the 1st force application spring 13 and the 1st rotation force application spring 23 all are configured in the 1st rotation with respect to the 1st location with leading axle 12 stop usefulness leading axle 22 sides, be rotated the application of force to equidirectional thereby can be in the face parallel move frame 11 to the 1st with the sensitive surface of imaging apparatus portion 51.Therefore, can make the loosening amesiality of leading axle and its fitting portion efficiently.
The 2nd to move frame 31 are the frame shape parts that partly have openning 31x in substantial middle, are bearing in the 1st in displaceable mode to move on the frame 11.And, the 2nd moves frame 31 by can moving frame 11 displacement of the 1st direction (the Y direction among Fig. 2) in the face parallel with the sensitive surface of imaging apparatus portion 51 together with the 1st, and can along with the face of the 1st direction approximate vertical in the mode of the 2nd direction (directions X among Fig. 2) displacement be bearing in the 1st and move on the frame 11.
For this reason, the 2nd moves frame 31 stops to be moved on the frame 11 being bearing in the 1st along the mode of the 2nd direction displacement with leading axle 42 with leading axle 32 and the 2nd rotation by the 2nd location, the 2nd location is the 2nd location leading axles with leading axle 32, the 2nd rotation stops to be located at the 1st with leading axle 42 and moves on the frame 11, move frame 31 along the 2nd direction (directions X among Fig. 2) guiding the 2nd, limit the 2nd and move frame 31 and rotate with leading axle 32 around the 2nd location.
Move the 2nd and to be hung with the 2nd force application spring 33 between frame 31 and the pedestal 10, it is made of wind spring of austerity etc., moves frame 31 application of forces along the 2nd direction (directions X among Fig. 2) to the 2nd.The 2nd force application spring 33 the 2nd location with leading axle 32 near quilt be set up in parallel parallel with the long axis direction of the 2nd location usefulness leading axle 32.And, near stopping with leading axle 42, the 2nd rotation is provided with the 2nd rotation force application spring 43, it is made of wind spring of extensibility etc., moves frame 31 application of forces along the 2nd direction to the 2nd, and moves frame 31 to the 2nd be rotated the application of force in the face parallel with the sensitive surface of imaging apparatus portion 51.In addition, the direction of the rotation application of force of the direction of the rotation application of force of the 1st rotation force application spring 23 generations and 43 generations of the 2nd rotation force application spring is set to equidirectional.
Below, the elemental motion of the imaging circuit unit 1 that constitutes like this is described.Photographing module 100 startings also are in up state, under the state that can move in imaging circuit unit 1, when in order to carry out shooting action during functional unit such as operation shutter release button, the index signal of this moment passes to the control circuit of photographing module 100, and control circuit begins auto-focus and regulates predetermined actions such as (AF) action and automatic exposure (AE) action.
When this action beginning, when the output according to the shake transducer generates as the jitter correction control signal, drive the 1st motor 15 and the 2nd motor 35 in view of the above.The actuating force of the 1st motor 15 is rotated the 1st pinion 16, and the 1st pinion 16 rotates the 1st leading screw 18 by the 1st gear 17.At this moment, the rotation restricting unit 19a of the 1st nut 19 that is spirally connected with the 1st leading screw 18 is fastened on engaging on the position of pedestal 10, limits the rotation of self thus.Therefore, follow 18 rotations of the 1st leading screw, the 1st nut 19 moves along the 1st direction (the Y direction among Fig. 2).
The 1st the 1st holding section 11c that moves frame 11 is connected on the 1st nut 19, and the two butt state is held all the time by means of the application of force of the 1st force application spring 13.Under this state, carry out the drive controlling of the 1st motor 15, when the 1st nut 19 was mobile along the 1st direction (the Y direction among Fig. 2), the 1st moves frame 11 kept the butt state of the 1st holding section 11c and the 1st nut 19 by the application of force of the 1st force application spring 13, and moves on the 1st direction.On the contrary, when the 1st nut court is mobile in the opposite direction with the 1st side, the application of force that the 1st nut 19 is resisted the 1st force application spring 13, butt is also pushed the 1st holding section 11c.Thus, the 1st move frame 11 and moving in the opposite direction with above-mentioned side.Like this, by the drive controlling of the 1st motor 15, the 1st moves frame 11 moves along the 1st direction.
On the other hand, the actuating force of the 2nd motor 35 is rotated the 2nd pinion 36, and the 2nd pinion 36 rotates the 2nd leading screw 38 by the 2nd gear 3737.At this moment, the rotation restricting unit 39a of the 2nd nut 39 that is spirally connected with the 2nd leading screw 38 is fastened on engaging on the position of pedestal 10, limits the rotation of self thus.Therefore, follow 38 rotations of the 2nd leading screw, the 2nd nut 39 moves along the 2nd direction (directions X among Fig. 2).
Be connected on the 2nd nut 39 with the 2nd the 2nd holding section 31c that moves the engaging part 45 that frame 31 is wholely set, the two butt state is held all the time by means of the application of force of the 2nd force application spring 33.Under this state, carry out the drive controlling of the 2nd motor 35, when the 2nd nut 39 was mobile along the 2nd direction (directions X among Fig. 2), the 2nd moved frame 31 keeps the 2nd holding section 31c and the 2nd nut 39 by the application of force of the 2nd force application spring 33 butt state, and moves in the same direction.When the 2nd nut 39 was mobile round about, the 2nd moved frame 31 keeps the 2nd holding section 31c and the 2nd nut 39 by the application of force of the 2nd force application spring 33 butt state, and moves in the same direction.Like this, by the 2nd motor 35 is carried out drive controlling, the 2nd moves frame 31 moves along the 2nd direction (directions X among Fig. 2).
In addition, the 2nd moves frame 31 follows the 1st to move the displacement of frame 11 along the 1st direction, and along equidirectional displacement, but this moment the 2nd nut 39 and the 2nd holding section 31c keep its butt state, and follow the 1st to move the displacement of frame 11 and move along the 1st identical direction.That is, the butt displacement of the 2nd nut 39 and the 2nd holding section 31c follows the 2nd to move frame 31 and the 1st and move the displacement of frame 11 to the 1st direction, and the 2nd holding section 31c also moves to equidirectional.In this moving range, remain the butt state of the 2nd holding section 31c and the 2nd nut 39.
Below, use Fig. 3 explanation has the structure as the imaging apparatus portion 51 of the function of imaging apparatus packaging body.Imaging apparatus portion 51 utilizes the next stacked substrate/chip wherein of encapsulation (Sip) technology in the system known per.Generally, when the pixel count of imaging apparatus increases,, then produce the slack-off problem of operation program of camera if do not accelerate transmission speed.If use the Sip technology, then can shorten wiring, so even Action clock by rapid, also can alleviate unnecessary radiation.
Rear side the shot object image by photographic optical system 2b imaging being carried out the imaging apparatus 61 of opto-electronic conversion disposes partition 64a.Across this partition 64a, dispose the 1st circuit substrate 62 at the opposition side of imaging apparatus 61, it comprises various circuit such as analog signal processing circuit 201, A/D change-over circuit 202, temporary-storage circuit 203 and imaging apparatus drive circuit 206.Rear side at the 1st circuit substrate 62 disposes partition 64b, across this partition 64b, disposes the 2nd circuit substrate 63 that comprises reconditioning circuit 204, memory circuit 205 and interface circuit at the opposition side of the 1st circuit substrate 62.
These imaging apparatus the 61, the 1st circuit substrate the 62, the 2nd circuit substrates 63 and partition 64a, 64b are stacked, and the thin substrate that is configured in the imaging apparatus portion 51 is on the intermediate plate (interposer) 66.Imaging apparatus the 61, the 1st circuit substrate 62 is connected with external circuit with electrode 67 by closing line 65 respectively with the 2nd circuit substrate 63 each interior circuit elements.Packed body 69 surrounds around each parts, and is provided with cloche 68 in the sensitive surface side of imaging apparatus 61, so inside is retained as airtight conditions, can prevent that dust etc. from entering.
Below, use Fig. 4 that the main electrical structure of photographing module 100 is described.This photographing module 100 is the devices that are assembled in the camera (not shown), but before in being assembled into camera, installation adjusting device 300 is also adjusted action.Below, the state that is installed on this adjusting device 300 is described.
In the lens barrel unit 2 in photographing module 100, dispose photographic optical system 2b as previously described, this photographic optical system 2b carries out focal adjustments and focus adjustment by lens driving mechanism 7.Detected by lens location testing agency 6 by the focal position of the photographic optical system 2b of these lens driving mechanism 7 drivings and focal length, and export to the jitter correction computing circuit of narrating later 216.
On the light path of photographic optical system 2b, dispose the light intensity adjusting mechanism that is subjected to the light light quantity 4 of regulating imaging apparatus 61.About light intensity adjusting mechanism 4, can use the ND filter that to regulate transmission light quantity or iris apparatus etc.This light intensity adjusting mechanism 4 is connected to light intensity adjusting mechanism 5 and is driven.In addition, light intensity adjusting mechanism 5 and lens driving mechanism 7 are from receiving control signal with combined adjusting device 300 of photographing module 100 or camera body (not shown) and being driven.Export to adjusting device 300 or camera body by lens location testing agency 6 detected focal position information and focus information.
In the camera element unit 50 in photographing module 100, dispose infrared cutoff filter and low pass filter 55 on the light path of photographic optical system 2b.Low pass filter is the radio-frequency component by shot object image, and the optical filter that low frequency is passed through, infrared cutoff filter are the optical filters by the infrared light composition.
On the light path of the behind of infrared cutoff filter and low pass filter 55, photographic optical system 2b, dispose imaging apparatus portion 51.In imaging apparatus portion 51, dispose imaging apparatus 61 as previously described, shot object image is carried out opto-electronic conversion, and the output analog picture signal.About imaging apparatus 61, use CCD (Charge Coupled Devices) or CMOS two-dimentional imaging apparatuss such as (Complementary MetalOxide Semiconductor).
Analog signal processing circuit 201 carries out the processing and amplifying of analog picture signal etc., and exports to A/D change-over circuit 202.A/D change-over circuit 202 is converted to digital signal to analog picture signal, this view data is exported to interim memories 203 such as SDRAM, makes interim memory 203 carry out the interim storage of view data.The view data that is stored in the interim memory 203 is exported to reconditioning circuit 204.
This reconditioning circuit 204 as hereinafter described, but output calibration from the camera watch region of imaging apparatus 61, cut the position of image so that the picture center uniform images data of the optical axis center of photographic optical system 2b and demonstration/document image.Reconditioning circuit 204 is connected to memory circuit 205, and this memory circuit 205 is to be used to store and the cutting the relevant data in position, can carry out for example E that electricity is rewritten of image
2Nonvolatile memories such as PROM.
In imaging circuit unit 1, be provided with the 1st, the 2nd driving mechanism portion 213 that comprises described the 1st driving mechanism portion 14 and the 2nd driving mechanism portion 34, utilize the 1st, the 2nd driving mechanism portion 213, in the face vertical, drive imaging apparatus 61 to the 1st and the 2nd direction (directions X and Y direction) with the optical axis of photographic optical system 2b.The amount of movement of the imaging apparatus 61 that is driven by the 1st, the 2nd driving mechanism portion 213 is detected by the 1st, the 2nd position-detection sensor 211.1st, the 2nd position-detection sensor 211 is made of described the 1st position-detection sensor 24 and the 2nd position-detection sensor 44.
In imaging circuit unit 1, dispose and detect, detect the amount of movement (rotation amount) of the 1st and the 2nd direction (directions X and Y direction), and export to jitter correction computing circuit 216 because cameraman's hand such as trembles at the shake transducer 215 of the shake that causes.Jitter correction computing circuit 216 is according to from the amount of jitter information of shake transducer 215 with from the focus information of lens location testing agency 6, and computing is used to remove the jitter correction amount of effect of jitter.
The output of jitter correction computing circuit 216 is connected to jitter correction drive circuit 217, according to from the positional information of the 1st, the 2nd position-detection sensor 211 with from the control signal of imput output circuit 317, to the 1st, the 2nd driving mechanism 213 output drive control signal.
Adjusting device 300 is according to measure the adjusted value that cuts that is used to carry out view data etc. based on the view data of the output of imaging apparatus 61, so that the optical axis center of the photographic optical system 2b device consistent with the picture center of demonstration/document image.When adjusting, measure graph card 331 in the configuration of the place ahead of photographic optical system 2b.
Be provided with the programme controlled CPU 301 that carries out adjusting device 300 in adjusting device 300, CPU 301 is connected to data/address bus 303.On this data/address bus 303, connecting image processing circuit 311, SDRAM control circuit 313, imput output circuit 317, switch testing circuit 319 and video signal output circuit 323.Imput output circuit 317 is transfused to the output of reconditioning circuit 204, and the numeral of the line number of going forward side by side digital image data is amplified (digital gain adjustment processing), color correction, gal sign indicating number (γ) correction, the various image processing of contrast correction.
Use Fig. 5 that the assembling procedure of the photographing module 100 that the present embodiment of such formation relates to is described.At first, the SIP that carries out the imaging apparatus portion 51 of structure shown in Figure 3 installs (#1).Then, imaging apparatus portion 51 is installed in (#3) on the flexible printing substrate 52.And, carry out the assembling (#5) of the mobile unit 80 (move frame 11 and the 2nd and move frame 31 etc. and constitute) except imaging apparatus portion 51 and flexible printing substrate 52 by being fixedly installed on the 1st on the pedestal 10.
Then, carry out the assembling (#7) of imaging circuit unit 1 after above-mentioned imaging apparatus portion 51, flexible printing substrate 52, the mobile unit 80 etc.And, the parallel assembling (#9) that comprises the lens barrel unit 2 of photographic optical system 2a and lens driving mechanism 7 etc.Then, assembling lens barrel unit 2 and imaging circuit unit 1 (#11) finish the assembling of photographing module 100 thus.After having assembled photographing module 100, measure and store the adjustment action of the adjusted value that cuts (finishing coordinate) that is used to carry out view data then, so that the optical axis center of photographic optical system 2b and the picture center of demonstration/document image consistent (#13).
The concept map of the flow chart of the adjustment action of use Fig. 6 and the investigation action of Fig. 7 illustrates and adjusts action.At first, carry out the initialization (S101) of mobile unit 80.This initialization is by roughly consistent the carrying out in center in the design of the optical axis that drives the 1st driving mechanism 14 and the 2nd driving mechanism 34 and make photographic optical system 2b and imaging apparatus portion 51.Then, the some graph card of point has been drawn as measuring graph card 331 (S103) in the center that is arranged on the graph card face.
Then, CPU 301 indication imaging apparatus drive circuits 206 begin the shooting action, carry out graph card photography (S105).After photography finishes, carry out read (S107) of camera data.At this moment, camera data is temporarily stored in the interim memory 203, sends SDRAM 315 in the adjusting device 300 to by reconditioning circuit 204, image processing circuit 311 etc. then.Then, carry out the computing (S109) of departure.This departure is by in the image of having taken graph card, shown in Fig. 7 (A), obtains that the departure (Δ x, Δ y) at optical axis center 351 and picture center 353 obtains.
Before this adjusted action, it is consistent that the optical axis of photographic optical system 2a and the position of the point of mensuration graph card 331 have been adjusted to, so the point of the graph card in the image becomes optical axis center 351.And picture center 353 utilizes the x coordinate corresponding with 1/2 of the pixel count of the horizontal direction (directions X) of the view data of exporting from imaging apparatus 61 and represents with 1/2 of the pixel count of the vertical direction (Y direction) of view data corresponding y coordinate.
Then, repair the data operation (S111) of coordinate.This computing is for but output optical axis center in the scope of camera watch region 361 becomes the view data at picture center, and obtains the computing that cuts position (finishing coordinate 365) of view data.That is, before adjusting for cutting position (x0, y0) 363 before the adjustment at the finishing scope 367 before the adjustment corresponding with picture center 353.Finishing coordinate (x1, y1) is for using the departure of obtaining at step S109 (Δ x, Δ y), to cutting the value after position (x0, y0) 363 adds departure (Δ x, Δ y) before adjusting.Therefore, finishing coordinate (x1, y1) is:
x1＝x0+Δx
y1＝y0+Δy。
After the computing of the finishing coordinate of step S111 finishes, then the data of this finishing coordinate of obtaining are sent to memory circuit 205 (S113) in the photographing module 100.The nonvolatile memory that memory circuit 205 utilization can electricity be rewritten constitutes, so after having stored the finishing coordinate data, even power supply disconnects, also storing by adjusting the data that action is obtained.
More than finish to be used to export the optical axis of photographic optical system 2b and the adjustment of picture centre uniform images data, be used to carry out the adjustment of the aberration correction of photographic optical system 2b then.At first, as measuring graph card 331, the grid graph card is set replaces some graph card (S115).Then, CPU 301 indication imaging apparatus drive circuits 206 begin the shooting action, and carry out graph card photography (S117).After photography finishes, carry out read (S119) of camera data.Camera data is stored in the interim memory 203 equally, sends SDRAM 315 in the adjusting device 300 to by reconditioning circuit 204, image processing circuit 311 etc. then.
Then, the camera data according to interim storage carries out Aberration Analysis (S119).Aberration Analysis is by detecting and the deviation of camera data and the variation of light quantity originally grid configuration, and it is poor to analyze spherical aberration, coma aberration, astigmatism, curvature of the image, distortion aberration iseikonia.Aberration changes according to focal length and f-number, so while need to change those conditions handle in step S117～S121.Therefore, whether judge detected under all conditions that should change (S123).
In the result of determination of step S123 is also not during detection of end, to make focal length and focal position change scheduled volume (S125) in all conditions.This is undertaken by driving indication by 7 outputs of 301 pairs of lens driving mechanisms of CPU.In addition, when light intensity adjusting mechanism 4 is made of aperture, Yi Bian change f-number together, Yi Bian repeating step S117～S121.And, if single-focus lens then can omit step S123 and S125.
When being through with Aberration Analysis under all conditions, then the Aberration Analysis to repeat to obtain generates aberration data table (S127), to memory circuit 205 transmission aberration datas (S129) in the result of determination of step S123.
After above adjustment release, finishing coordinate and aberration data table are stored in the memory circuit 205, used the finishing coordinate correction that is stored in the memory circuit 205 based on the position that cuts from the view data of the picture signal of imaging apparatus 61 by reconditioning circuit 204, output makes the optical axis uniform images data of picture center and photographic optical system 2b.And, owing in memory circuit 205, store the aberration data table, so can read as required.
The photographing module 100 of above-described embodiments of the present invention makes lens barrel unit 2 and imaging circuit unit 1 integrated, be provided with in this imaging circuit unit 1 the imaging apparatus portion 51 of shot object image as DID output, this imaging apparatus portion 51 has: the imaging apparatus 61 that shot object image is carried out opto-electronic conversion; The output signal of this imaging apparatus is carried out the A/D change-over circuit 202 of digital translation; Storage is used to obtain the memory circuit 205 of lens barrel unit 2 and the adjusted value of the coupling of imaging circuit unit 1; Reconditioning circuit 204 as the adjustment circuit of the output of proofreading and correct A/D change-over circuit 202 according to adjusted value.Therefore, the adjusted value of photographing module 100 is kept at photographing module 100 inside, can move with photographing module 100 one.As a result, after making photographing module 100, even spatially the time go up the place of separating camera carried out the assembling operation of photographing module 100, adjusted value also is present in the photographing module 100, can not use wrong adjusted value to make the image quality deterioration.
And, in the present embodiment, as adjusted value, storage is used to make the optical axis finishing coordinate consistent with picture centre of the photographic optical system 2b of lens barrel unit 2, so can be from photographing module 100 output image centers and photographic optical system uniform images data.Therefore, after being assembled into photographing module 100 on the camera body, do not need to adjust.
In addition, in the present embodiment, storage is used to proofread and correct the aberration data table of optical aberration of photographic optical system 2b as adjusted value, thus photographing module 100 can output calibration the view data of optical aberration of photographic optical system 2b.
In addition, in the present embodiment, adjusted value is stored in the nonvolatile memory, so even stop the power supply of memory circuit 205, also can not lose adjusted value.And nonvolatile memory can carry out electricity to be rewritten, so easily according to each change of product adjusted value.
In addition, in the present embodiment, each chip substrate in the imaging apparatus portion 51 is installed by SIP (encapsulation in the system) and is constituted.Therefore, can make the circuit densification of imaging apparatus periphery, can in lens barrel, take in necessary parts, can realize the miniaturization of photographing module integral body, have the good advantage of carrying property.
In addition, in the present embodiment, imaging apparatus portion 51 adopts installs the chip laminate formula of chip laminate as SIP, but is not limited thereto, and for example can certainly be sheet in the sheet (chip on chip) type.And, as adjusted value, storage finishing coordinate and optical aberration data both sides in memory circuit 205, but be not limited thereto, also can only store the either party, and can certainly be to detect relevant adjusted value etc. with lens driving and lens location.
In addition, in the present embodiment, have the 1st driving mechanism the 14, the 2nd driving mechanism 34 that jitter correction uses etc., when the initialization of mobile unit, utilize these mechanisms.But, not having jitter correction, also can driving mechanism be set in the adjusting device side with in the photographing module of mechanism, also can carry out manually moving.
When the explanation embodiments of the present invention, enumerated the example of the photographing module that digital camera uses, but as digital camera, also can be digital camera of single lens reflex type or close-coupled etc., and can certainly be applied to be assembled in electronic image pickup device on the special equipment outside these digital cameras to the present invention.
Claims (5)
1. a photographing module makes lens unit and imaging circuit unit integral, it is characterized in that, above-mentioned imaging circuit unit has the single imaging apparatus packaging body of shot object image as DID output, and this imaging apparatus packaging body comprises:
Above-mentioned shot object image is carried out the imaging apparatus of opto-electronic conversion;
The output signal of this imaging apparatus is carried out the A/D change-over circuit of digital translation;
Processing is repaired in output to above-mentioned A/D change-over circuit, so that the optical axis of the above-mentioned lens unit adjustment circuit consistent with picture centre; And
The memory circuit of the data of the scope that the above-mentioned finishing of storage representation is handled.
2. photographing module according to claim 1 is characterized in that above-mentioned memory circuit is a nonvolatile memory.
3. photographing module according to claim 1 is characterized in that above-mentioned memory circuit can be stored the optical aberration of above-mentioned lens unit.
4, a kind of adjusting device, it can be connected to the described photographing module of claim 1, this adjusting device can be in above-mentioned memory circuit the data of the scope handled of the above-mentioned finishing of storage representation.
5. the adjusting device of a photographing module, lens unit and imaging circuit unit integral is characterized in that in the above-mentioned photographing module, this adjusting device comprises:
The adjusted value arithmetic element, it carries out the output of the imaging apparatus of opto-electronic conversion to shot object image according to being configured in above-mentioned imaging circuit unit in, obtains the data that expression is used to make the scope of the optical axis of the above-mentioned lens unit finishing processing consistent with picture centre; And
Transmitting element, its above-mentioned adjusted value of obtaining by this arithmetic element sends to the memory circuit in the above-mentioned photographing module.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-019091 | 2007-01-30 | ||
| JP2007019091 | 2007-01-30 | ||
| JP2007019091A JP2008187437A (en) | 2007-01-30 | 2007-01-30 | Imaging module, and adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101237526A true CN101237526A (en) | 2008-08-06 |
| CN101237526B CN101237526B (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103001078A Expired - Fee Related CN101237526B (en) | 2007-01-30 | 2007-12-17 | Image pick-up module and adjusting device |
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| Country | Link |
|---|---|
| JP (1) | JP2008187437A (en) |
| CN (1) | CN101237526B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104850A (en) * | 2014-07-02 | 2014-10-15 | 格科微电子（上海）有限公司 | Imaging module group equipped with voice coil motor and calibration method thereof |
| CN106913366A (en) * | 2011-06-27 | 2017-07-04 | 内布拉斯加大学评议会 | Tracing system and Computer Aided Surgery method that instrument is carried |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101147327B1 (en) * | 2010-06-24 | 2012-05-22 | 삼성전기주식회사 | Camera module and surveillance apparatus having the same |
| JP5587264B2 (en) * | 2010-11-01 | 2014-09-10 | キヤノン株式会社 | ADJUSTMENT METHOD, ADJUSTMENT DEVICE, AND IMAGING DEVICE MANUFACTURING METHOD |
| JP2019009653A (en) * | 2017-06-26 | 2019-01-17 | アイホン株式会社 | Camera module adjustment method in intercom device |
-
2007
- 2007-01-30 JP JP2007019091A patent/JP2008187437A/en active Pending
- 2007-12-17 CN CN2007103001078A patent/CN101237526B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106913366A (en) * | 2011-06-27 | 2017-07-04 | 内布拉斯加大学评议会 | Tracing system and Computer Aided Surgery method that instrument is carried |
| CN106913366B (en) * | 2011-06-27 | 2021-02-26 | 内布拉斯加大学评议会 | On-tool tracking system and computer-assisted surgery method |
| CN104104850A (en) * | 2014-07-02 | 2014-10-15 | 格科微电子（上海）有限公司 | Imaging module group equipped with voice coil motor and calibration method thereof |
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| Publication number | Publication date |
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| JP2008187437A (en) | 2008-08-14 |
| CN101237526B (en) | 2011-07-20 |
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