CN101167006A - Optical module and portable terminal - Google Patents
Optical module and portable terminal Download PDFInfo
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- CN101167006A CN101167006A CNA2006800140585A CN200680014058A CN101167006A CN 101167006 A CN101167006 A CN 101167006A CN A2006800140585 A CNA2006800140585 A CN A2006800140585A CN 200680014058 A CN200680014058 A CN 200680014058A CN 101167006 A CN101167006 A CN 101167006A
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Abstract
An optical module where design freedom in thinning it in the direction of its optical axis can be increased. The optical module (7) has a lens group (21); a lens holding body (22) for holding the lens group (21); a base (23) for lens, holding the lens holding body (22) so as to be movable in the direction of the optical axis of the lens group (21); an output shaft (13b) extended in the direction orthogonal to the optical axis of the lens group (21); a motor (13) for rotating the output shaft (13b) and a transmission mechanism (53) for converting the rotation of the output shaft (13b) into translation motion in the optical axis direction to transmit to the lens holding body (22).
Description
Technical field
The present invention relates to a kind of optical module and possess the portable terminal of above-mentioned optical module.
Background technology
Along the technology that optical axis direction drives, for example following technology is arranged as the lens (lens) that camera etc. is contained.
In the patent documentation 1, announce a kind of camera head, possessed the aperture diaphragm that the imaging lens system and the light quantity of the incident light of regulating this imaging lens system are used in the focusing that relies on CD-ROM drive motor to drive along optical axis.Also have, the configuration of lens, diaphragm, motor is not announced.
In the patent documentation 2, announced a kind of camera head, relied on the driving force of motor, imaging lens system has been driven into the driven for opening and closing of carrying out shutter behind the focusing position.Motor configurations becomes output shaft to be parallel to optical axis.
In the patent documentation 3, a kind of front stop 2 set vari-focus lens that dispose aperture diaphragm at the object side of lens combination have been announced.Also have, do not announce about the configuration of motor etc.
Also has the technology of the portable terminal that the camera head of drive source driving lens that known dependence is single and diaphragm etc., the optical component that relies on motor that close-range photography is used pass in and out etc. on light path.
Patent documentation 1: the spy opens clear 64-17030 communique
Patent documentation 2: the spy opens flat 03-38625 communique
Patent documentation 3: the spy opens flat 10-123418 communique
In the above-mentioned technology, motor configurations becomes output shaft to be parallel to optical axis.Thereby, need be on optical axis direction according to the size of accumulative totals such as the length of the output shaft of the moving range of lens, motor, the length of motor body, guarantee the configuring area of each one, the slimming on the optical axis direction is restricted.
Summary of the invention
The objective of the invention is to, provide a kind of at optical axis direction by the optical module of slimming and possess the portable terminal of this optical module.
Optical module of the present invention wherein, comprising: lens; Keep described lens and make its lens that can move keep body along the optical axis direction of these lens; Drive source with output shaft of output drive strength; To pass to the transmission mechanism that described lens keep body from the driving force of described output shaft output; Blade; Keep described blade and make the shutter matrix of its light path that can open and close described lens; Utilize described lens to form the imaging apparatus of light image; With the substrate that is provided with described imaging apparatus, with respect to described optical axis direction, stack gradually the described shutter of configuration from a direction and keep body, described substrate with matrix, described lens, described drive source keeps body with respect to described shutter with matrix and described lens, with the direction of described optical axis approximate vertical on configuration side by side.
Be preferably, described drive source is configured to described output shaft with respect to described optical axis approximate vertical, described transmission mechanism comprises worm screw and cam wheel, described worm screw is transmitted from the driving force of described output shaft output, and around with respect to the roughly axle rotation of quadrature of described optical axis, described cam wheel have with described worm screw or transmit described worm screw rotation gearing mesh gear part and with respect to the cam part of the face tilt of described light shaft positive cross, and around the axle rotation that is roughly parallel to described optical axis, described lens keep body and described cam part butt and quilt along described optical axis direction guiding.
Be preferably, described optical module also comprises position detecting device, this position detecting device has the detected portion that is configured on the described cam wheel and is configured near the test section of described cam wheel, described position detecting device utilizes described test section to detect the rotation of described cam wheel, detects the position of described lens thus.
Be preferably, described cam wheel disposes described detected portion, described cam part successively from this cam wheel inboard.
Be preferably, described cam wheel disposes described cam part and described gear part according to the concentric circles of this cam wheel.
Be preferably, described transmission mechanism possesses: around the axle rotation that is roughly parallel to described optical axis and be approximately perpendicular to the cam wheel that is formed with jut on the face of described optical axis, possess the position detecting device that detects described jut near described jut.
Be preferably, described transmission mechanism possesses: around the axle rotation that is roughly parallel to described optical axis and be approximately perpendicular to the cam wheel that is formed with the different part of reflectivity on the face of described optical axis, possess photoelectric sensor near being approximately perpendicular to the face of described optical axis, this photoelectric sensor has light-emitting component and photo detector.
Be preferably, described optical module possesses along described optical axis direction and guides described lens to keep the axis of guide of body, described lens to keep body to have a plurality of bearing portion by described axis of guide guiding, and this a plurality of bearing portion has different shapes.
Be preferably, described lens keep body to possess abutting part and spring mounting portion with described transmission mechanism butt, the coil spring of mounting cone shape and make it the application of force in this spring mounting portion.
Be preferably, described lens keep body to have 2 bearing portions that guided by the described axis of guide, described 2 bearing portions form with respect to the different V-shape in described axis of guide angular direction separately, the lowest point part sliding contact of the described V-shape of the described axis of guide and each bearing portion, the lowest point part of one side's of described bearing portion V-shape and described spring mounting portion are configured in and clip the opposed position of the described axis of guide, and the opposing party's of described bearing portion V-shape is towards described spring mounting portion.
Be preferably, described transmission mechanism possesses the cam wheel around the axle rotation that is roughly parallel to described optical axis, this cam wheel have transmission from the gear part of the rotation of described drive source and with respect to the cam part of the face tilt of described light shaft positive cross, described lens keep body with described cam part butt and guided along described optical axis direction.
Be preferably, equal with the abutting part hardness of described cam part butt in described cam part and the described lens retaining member, perhaps the hardness of cam part is big.
Be preferably, described cam wheel has detected portion, dispose described detected portion, described cam part successively from the inboard, described optical module possesses position detecting device, this position detecting device has near the test section that is configured in the described detected portion, this position detecting device utilizes described test section to detect the rotation of described cam wheel, detects the position of described lens thus.
Be preferably, the extreme lower position of described cam part is set at the position that part and the face described light shaft positive cross that never forms described cam part begins to form step.
Portable terminal of the present invention wherein, possesses: the terminal framework; And optical module, it is accommodated in the described terminal framework, makes the light image imaging from peristome set on the described terminal framework, and described optical module comprises: lens; Keep described lens and make its lens that can move keep body along the optical axis direction of these lens; Drive source with output shaft of output drive strength; To pass to the transmission mechanism that described lens keep body from the driving force of described output shaft output; Blade; Keep described blade and make the shutter matrix of its light path that can open and close described lens; Utilize described lens to form the imaging apparatus of light image; With the substrate that is provided with described imaging apparatus, with respect to described optical axis direction, stack gradually the described shutter of configuration from a direction and keep body, described substrate with matrix, described lens, described drive source keeps body with respect to described shutter with matrix and described lens, with the direction of described optical axis approximate vertical on configuration side by side.
The invention effect
According to the present invention, the optical module of slimming can be provided and possess the portable terminal of this optical module.
Description of drawings
Fig. 1 is the stereographic map of outward appearance of representing the pocket telephone of embodiments of the present invention with open mode.
Fig. 2 is the stereographic map with the outward appearance of the pocket telephone of closed condition presentation graphs 1.
Fig. 3 is the stereoscopic figure and the sectional view of optical module of the pocket telephone of Fig. 1.
Fig. 4 is an exploded perspective view of seeing the optical module of Fig. 3 from object side.
Fig. 5 is an exploded perspective view of seeing the optical module of Fig. 3 from the opposition side of object side.
Fig. 6 is the exploded perspective view of shutter unit of the optical module of Fig. 3.
Fig. 7 is the stereographic map of lens unit of the optical module of Fig. 3.
Fig. 8 is the stereographic map that the inside of the lens unit of presentation graphs 7 constitutes.
Fig. 9 is the figure of cam wheel of the lens unit of presentation graphs 7.
Figure 10 is near the figure of through hole that the lens of the lens unit of presentation graphs 7 keep body.
Among the figure, 24,26, the 28-lens, the 22-lens keep body, 23-lens matrix, 13-drive source, 53-transmission mechanism.
Embodiment
Fig. 1 and Fig. 2 are the stereoscopic figure that expression has been suitable for an embodiment of pocket telephone of the present invention.Pocket telephone 1 constitutes as so-called folding pocket telephone, and Fig. 1 represents open mode, and Fig. 2 represents closed condition.
Pocket telephone 1 possesses the framework talked about 2 and send words framework 3, is talked about framework 2 and send words framework 3 can link by linking part 4 with opening and closing.Talked about framework 2 and sent words framework 3, possessed in off position face side shell 2c, the 3c of opposed (front) side and rear side shell 2d, the 3d of its rear side mutually respectively.These shells for example utilize resin integrally formed respectively.
Being talked about framework 2 is provided with at the main display part 5 of face side display image with at the secondary display part 6 of its rear side display image along each face respectively.Main display part 5 and secondary display part 6 for example are made of LCD.In addition, talked about on the framework 2, be provided with and be used for going up that set peristome 2e takes the optical module 7 of subject and from the luminous flashlamp 8 of rear side from rear side shell 2d.
Send words framework 3 face side to possess operating portion 9.On operating portion 9, dispose the various buttons that numerical key 9a etc. is used to operate pocket telephone 1.Pocket telephone 1 according to the input operation to numerical key 9a, carries out radio communication and utilizes optical module 7 to make a video recording.
Also have, in the inside of pocket telephone 1, be provided with the high-frequency circuit and antenna, the microphone that is used to converse and the loudspeaker that are used for radio communication, but, diagram is omitted.In addition, omit equally and illustratedly be, have lid,, then have battery outer portion, taken in battery if open lid at the opposing face of operating portion 9.In the present embodiment,, realize the reduction of component count and the miniaturization of pocket telephone 1 thus from the drive source supply capability of this battery to optical module 7.
Fig. 3 (a) is the summary stereoscopic figure of optical module 7, and Fig. 3 (b) is the sectional view of the III-III line of Fig. 3 (a).Also have, the y direction of principal axis of Fig. 3 is an optical axis direction, and the paper upper side of the paper lower-left side of Fig. 3 (a) and Fig. 3 (b) is object side (the paper upper side of Fig. 2).
Particularly, subject side cover 11, lens unit 14 (lens described later matrix 23), substrate lid 15 and substrate 16, see the essentially rectangular shape that forms roughly the same degree size at optical axis direction, the side of their each ones constitutes the side of global shape, and subject side cover 11 and substrate 16 constitute the face and the back side thereof of the object side of global shapes.The assembly that optical module 7 is small-sized as a comparison and constituting, for example, with the area of the face of light shaft positive cross be that the thickness of 22mm * 16mm, optical axis direction is 6.9mm.
Also have, optical module 7 is built-in with the motor 13 that is used for driving along optical axis direction lens, the mobile scalable focusing position of the optical axis direction of scioptics shown in Fig. 3 (b).
Fig. 4 is an exploded perspective view of seeing optical module 7 from object side, and Fig. 5 is an exploded perspective view of seeing optical module 7 from the opposition side of object side.Also have, among Fig. 5, omit expression substrate lid 15 and substrate 16.
As Fig. 4 and shown in Figure 5, motor 13 is arranged side by side with respect to optical axis and shutter unit 12, and promptly in the direction perpendicular to optical axis, shutter unit 12 and motor 13 are arranged the object side that is arranged on lens unit 14.In addition, shown in Fig. 3 (b), motor 13 is positioned at the radial outside of lens combination 21 described later.
Also have,,, be provided for the flexible printed circuit board (FPC) 32 that shutter unit 12, motor 13 etc. are electrically connected with respect to substrate 16 at the object side of motor 13 as Fig. 4 and shown in Figure 5.
Lens keep body 22, and also shown in Fig. 3 (b), the circular depressions with stepped undergauge is so that each lens 24,26,28 of the chimeric insertion of difference.Take in stacked each lens at this recess successively according to the order of the 1st lens the 24, the 2nd lens the 26, the 3rd lens 28, the retainer 29 of stacked ring-type again, simultaneously, retainer 29 being utilized fixing means such as cement be fixed on lens keeps on the body 22, thereby lens combination 21 is maintained at lens and keeps on the body 22.Lens keep body 22 for example to be formed by resin.
Lens, are for example formed by resin as Fig. 4 and shown in Figure 5 with matrix 23, and global shape is approximately slim rectangular parallelepiped.Lens cover lens with on the matrix 23 with the area and subject side cover 11 same degree of matrix 23, subject side cover 11 from shutter unit 12 and motor 13, and are chimeric with matrix 23 with lens.Also have, subject side cover 11 and lens are fixing with matrix 23, for example by insert among the set a plurality of poroid fastener 23a at lens with matrix 23, card only on the subject side cover 11 set claw 11d carry out.
At the object side of lens with matrix 23, the recess 23b of whole essentially rectangular is set, shutter unit 12 is fixing with matrix 23 with respect to lens with the state of chimeric insertion recess 23b.Also have, the local through hole shape that forms of recess 23b is used to guarantee light path.Shutter unit 12 and lens are fixing with matrix 23, for example carry out with screwing with shutter unit 12 in the through hole of matrix 23 by screw 101 being inserted lens.
In addition, at the object side of lens with matrix 23, with recess 23b adjacency recess 23c is set, motor 13 is fixing with matrix 23 with respect to lens with the state that is housed in recess 23c.Also have, recess 23c part can form the through hole shape.Motor 13 is to lens fixing with matrix 23, for example by motor 13 is fixed on the motor fixed component 31 through solder or welding etc., connects screw 102 and lens in the through hole that inserts motor fixed component 31 and screws with the threaded hole of matrix 23 and carry out.Motor fixed component 31 is for example formed by flat metal, is configured in the object side of motor 13.
Also have, shutter unit 12 and motor 13 are housed in lens with among the recess 23b or recess 23c of matrix 23, thereby, the face of the face of the face of the object side of lens usefulness matrix 23, the object side of shutter unit 12, the object side of motor fixed component 31, the position of its optical axis direction is roughly the same.
On the face 16a of the object side of substrate 16, be provided with the imaging apparatus 35 and the various electronic units such as connecting portion 36 that are connected with the connecting portion 32b of FPC32 that utilize lens combination 21 to form light images, the output signal corresponding with the light image of imaging.
On the other hand, shown in Fig. 3 (b), on substrate 16 and the face 16b subject opposition side, only be provided with along face 16b extend, from the FPC37 that substrate 16 stretches out, face 16b side roughly entirely forms.Also have, also FPC37 can be connected with the face 16a of object side, and with the face 16b of subject opposition side on do not install whatever.
Also have, shown in Fig. 3 (a) and Fig. 3 (b), the face of the opposition side of the object side of the global shape of substrate 16 formation optical modules 7, when optical module 7 is installed on the pocket telephone 1, for example, substrate 16 and the face 16b object side opposition side, be arranged on pocket telephone 1 inside do not have suitable member butts such as illustrated substrate, remain in the pocket telephone 1.FPC37 is provided with and is used for the connector 38 that is connected with substrate that is arranged on pocket telephone 1 inside etc.Can accept electric power from the battery of pocket telephone 1 based on the connection of this connector 38 supplies with.
Fig. 6 is the exploded perspective view of shutter unit 12, and the paper top is corresponding to object side.Shutter unit 12 comprises: the whole shutter that forms the case shape with matrix 41, be housed in shutter with the dim light optical filter 42 in the matrix 41, push dim light optical filter 42 dim light optical filter pressing plate 43, be housed in shutter with a plurality of blade 44A～44D in the matrix 41, push the pressing plate 45 of blade 44A～44D.Also have, with matrix 41 and pressing plate 45, be similar to the profile that constitutes shutter unit 12 by shutter.
As Fig. 4 and shown in Figure 5, in the pocket telephone 1, shutter unit 12, lens unit 14 its formations are to have shutter matrix 41 and lens matrix 23 respectively alone.And, thereby shutter constitutes the part of optical module 7 with matrix 23 combinations with matrix 41 and lens.
As shown in Figure 6, in the bottom surface of shutter, the peristome that incident light is seen through to lens unit 14 is set with matrix 41.The shape of peristome is suitable to get final product, and for example is rectangle.Around peristome, a plurality of fixedly protuberance 41a and movable protuberance 41b are set, fixedly protuberance 41a and movable protuberance 41b insert in dim light optical filter 42 and the last set through hole of blade 44A～44D, drive movable protuberance 41b, around fixing protuberance 41a rotation dim light optical filter 42 and blade 44A～44D, thereby, carry out the turnover of dim light optical filter 42 and utilize blade 44A～44D to carry out the switching of light path.
Also have, the driver (not diagram) that drives movable protuberance is housed in shutter with in the matrix 41.For example, be housed among recess 12a (with reference to Fig. 5) the protuberance 41c on every side.The action of this driver is via FPC32, substrate 16, FPC37, by the illustrated control part control that do not have of pocket telephone 1.
Fig. 7 is a stereographic map of seeing lens unit 14 from the opposition side of subject, and Fig. 8 sees the stereographic map that the inside of lens unit 14 constitutes from object side.
Lens keep body 22 to possess to the radial outside of lens 21 outstanding directed section 22a, 22b.Through hole 22c is set in the 22a of directed section, connects among this through hole 22c and insert the axis of guide 51.The axis of guide 51 is extending on the optical axis direction and being fixed on lens with on the matrix 23, along optical axis direction guiding directed section 22a.Directed section 22b is inserted in lens with among the concavity rail portion 23d that is provided with on the matrix 23.Rail portion 23d extends to form at optical axis direction, along optical axis direction guiding directed section 22b.
As shown in Figures 7 and 8, motor body 13a, the length of its output shaft 13b direction greater than with the width of output shaft 13b orthogonal directions.In addition, the cumulative length of motor body 13a length and output shaft 13b length, greater than the diameter of lens combination 21, motor body 13a and the thickness (with reference to Fig. 3 (b)) of width output shaft 13b orthogonal directions less than the optical axis direction of lens combination 21.
In motor body 13a and sides shutter unit 12 opposition sides, be provided with terminal folders 52, the terminal 52a of terminal folders 52 is connected (with reference to Fig. 4 and Fig. 5) with FPC32.The action of motor 13 utilizes the illustrated control part that do not have of pocket telephone 1, controls via FPC37, substrate 16, FPC32, terminal folders 52.
As shown in Figures 7 and 8, lens unit 14 is provided with the transmission mechanism 53 that the rotation of the output shaft 13b of motor 13 is converted to the rectilinear motion of optical axis direction, keeps body 22 to transmit to lens.
In addition, worm gear 55 possesses with the 55a of large diameter gear portion of worm screw 54 engagement and the gear ratio large diameter gear 55a of portion is few, with the 55b of small-diameter gear portion of cam wheel 56 engagements, will transmit the rotation that comes from worm screw 54 and slow down with the reduction gear ratio of regulation and transmit.Also have, worm gear 55 is inserted in lens and goes out among the circular depressions 23e of breach with the partial cut that is provided with on the matrix 23 as shown in Figure 5, simultaneously, and by supporting from motor retaining member 31 outstanding axial region 31b axles.
Fig. 9 (a) is a stereographic map of seeing cam wheel 56 from object side, and Fig. 9 (b) is a front view of seeing cam wheel 56 in the turning axle direction.
Cam part 56b have with respect to the face tilt of the rotating shaft direct cross of cam wheel 56, the cam surface 56c that promptly tilts at face with light shaft positive cross.On the other hand, as shown in Figure 8, lens maintenance body 22 has the abutting part 22d with cam surface 56c butt, and abutting part 22d can go up slip along with the cam surface 56c that is rotated in of cam wheel 56.In addition, lens keep body 22 to have the spring mounting 22k of portion, mounting spring 57 on this spring mounting 22k of portion, thereby, rely on spring 57 to the cam surface 56c application of force.Thereby along with the rotation of cam wheel 56, lens keep body 22 to be guided along optical axis direction.Spring 57 for example is the compression spring of coiled type, the coil spring of cone shape specifically, is clamped in lens with the force of compression of regulation and keeps body 22 and lens with between the matrix 23.So, by adopting the coil spring of cone shape, thereby, the coiled type part can be not overlapping during compression, can suppress thickness as much as possible, even when lens keep body 22 to move, reach with lens usefulness matrix 23 bee-lines, do not need to set the distance of having considered spring 57 thickness yet, can realize the slimming of optical axis direction.
Also have, the pitch angle of cam surface 56c can suit to set, for example can be as shown in Figure 9, the pitch angle of end side cam surface 56e1,56e2 that makes both end sides is milder or to make the pitch angle be 0 than the pitch angle of the center side cam surface 56d between these two ends, and lens keep body 22 moving along optical axis direction when suppressing to produce cam wheel 56 overruns.Also have, the pitch angle of central cam face 56c is set at about 9 ° ± 20%, promptly 7～11 ° get final product.This scope is the miniaturization that is conceived to carry the cam wheel 56 in optical module, considers that simultaneously the size of its necessary minimum and lens keep the amount of movement of the optical axis direction of body 22, the scope that can drive smoothly with appropriate driving resolution and actuating speed.Specifically, if less than 7 °, then cam wheel 56 is small-sized, sometimes central cam face 56c not enough being enough on the amount in 1 week guarantees that lens keep the necessary amount of movement of body 22, even enough, the rotation amount of cam wheel 56 also increases, and lens keep body 22 will arrive assigned position and also need driving time.Otherwise, if greater than 11 °, then can not keep lens to keep body 22 with trickle scale, cause driving resolution and reduce, and under the action of gravity of lens maintenance body 22, between abutting part 22d and central cam face 56c, slippage takes place easily.
In the present embodiment, side's end side cam surface 56e1 conduct that will become the extreme lower position of this cam part 56 forms the position of stage portion 56i from the face of the 56a of formative gear portion.By formation stage portion 56i like this, can be suppressed at the thickness (highly) that becomes the opposing party of extreme higher position end side cam surface 56e2 on the cam wheel 56, help the slimming of the optical axis direction of optical module integral body.In addition, be positioned at when the side's end side cam surface 56e that becomes extreme lower position as abutting part 22d, stage portion 56i becomes restrictions, can prevent that abutting part 22d is moved further along cam wheel 56 directions.Also have, as present embodiment, because stage portion 56i has inclination (not parallel with optical axis angle), thereby, when abutting part 22d becomes restrictions, can also prevent from abutting part 22d is granted necessary above load, can expand abutting part 22d, can carry out the detection that abutting part 22d is positioned at extreme lower position more reliably at the moving area that becomes on side's end side cam surface 56e1 of extreme lower position.
As shown in Figure 8, on lens unit 14, be provided for detecting the position of rotation of cam wheel 56 and then detect the photoelectric sensor 61 of position that lens keep the optical axis direction of body 22.
As shown in Figure 9,, constitute, possess illuminating part 61a, light accepting part 61b by the photoelectric sensor of reflection-type as the photoelectric sensor 61 of the test section of position detecting device.Photoelectric sensor 61 is with respect to putting configuration with the facing of rotating shaft direct cross of cam wheel 56, and illuminating part 61a is to cam wheel 56 irradiates lights, and light accepting part 61b accepts the light by cam wheel 56 reflections, output and the corresponding electric signal of accepting of light.
In addition, with the light quantity of accepting be the position of ormal weight as the reference position, can also detect the position of lens.Particularly when the variation of the light quantity of accepting is not rapid variation but smooth variation, the lens position of this smooth variation regulation light quantity midway as benchmark, can be held the position of lens.
For example, photoelectric sensor 61 is by the sensor formation of the corresponding electric signal (for example current value, magnitude of voltage or performance number) of the light quantity that output is accepted with light accepting part 61b, whether exceed certain threshold value according to light quantity, between ON signal and OFF signal, switch output signal.
Shown in Fig. 9 (a) and Fig. 9 (b), cam wheel 56 with photoelectric sensor 61 opposed positions, promptly with the position of cam part 56b concentric circles, its function is as the light of the self-luminescent part 61a in the future detected portion 56f to light accepting part 61b reflection.Detected portion 56f for example is positioned at all sides of cam part 56b.Detected portion 56f comprises the 1st reflecting part 56g and the 2nd reflecting part 56h.
The 1st reflecting part 56g forms than the 2nd reflecting part 56h to the side-prominent prominent bar of photoelectric sensor 61 (below, be also referred to as teat or projecting strip part).In other words, the 2nd reflecting part 56h becomes the formation face of jut (the 1st reflecting part 56g).In addition, in the present embodiment, the 1st reflecting part 56g compares the 2nd reflecting part 56h, and light reflectivity is set highly.For example, surface in photoelectric sensor 61 sides of the 1st reflecting part 56g, or (for example implement to utilize mirror finish that metal evaporation etc. carries out and look spraying, white spraying etc.), or the member (for example, catoptron) of stickup high reflectance, grinding process is carried out on the 2nd reflecting part 56h surface, thereby the reflectivity of luminance factor the 2nd reflecting part 56h of the 1st reflecting part 56g is set highly.Also have, cam wheel 56 can utilize resin system and and integrally formed as the projecting strip part of the 1st reflecting part 56g, carry out the high reflection processing of above-mentioned light, also can be shaped with the state that does not have the 1st reflecting part 56g (projecting strip part), use than the high reflecting material of cam wheel 56 light and make the 1st reflecting part 56g (projecting strip part) thereafter, perhaps the high reflection processing of light is carried out on the surface, be bonded on the 2nd reflecting part 56h.
So, adopt photoelectric sensor 61 (optical sensor) with illuminating part 61a (light-emitting component) and light accepting part 61b (photo detector) as position detecting device, has the 1st reflecting part 56g that forms prominent bar, thereby, shorten with the distance of photoelectric sensor 61, increase the light income of light accepting part 61b thus, thereby, can carry out position probing exactly as the lens of drive end.Specifically, best and distance detected body during photoelectric sensor 61 is determined to detect, but, set the distance of the height of the 1st reflecting part 56g for this best, set the 2nd reflecting part 56h and leave farther distance, on the output signal of photoelectric sensor 61, produce big difference thus, can realize preventing that flase drop from surveying and the raising accuracy of detection.
As present embodiment, make the optical module miniaturization, preferably adopt the short photoelectric sensor of this optimum distance, if see optimum distance from the distance of the photoelectric sensor of for example reflection-type and the curve of relative output current, then NJL5196/97K (new Japanese wireless company system) is about 0.6mm, CNB1011 (PANASONIC system) and is about 0.8mm, EE-SY125 (OMRON corporate system) and is about 0.7mm, PR-30-T (シ チ ズ Application electronics corporation system) and is about 0.4mm, reach away from peak value along with this optimum distance is close, output current descends relatively.And, be 100% o'clock with the current value that obtains at this optimum distance, with 60% as threshold value, according to whether exceeding it, and between ON signal and OFF signal, switch output signal, at this moment, detected material all must be at 1.5mm with interior distance in above-mentioned any one photoelectric sensor.But, on the structure that is used for fixing photoelectric sensor of optical module and prevent the abrasive influence of slip of cam part 56b and abutting part 22d or prevent to be coated on the reason of the influence of dispersing etc. of lubricant on the cam part 56b that photoelectric sensor 61 and the 2nd reflecting part 56h have to leave on the 1.5mm.For this reason, among the present invention, make the 1st reflecting part 56g form prominent bar, thereby, can shorten the distance of photoelectric sensor 61 to the position that is suitable for switching to the ON signal, can realize preventing that flase drop from surveying and improve accuracy of detection.In addition, when photoelectric sensor 61 preferably changed slightly with the distance of detected material, the current value that obtains at light accepting part 61b significantly reduced, for example, preferably the current value that obtains at optimum distance is 100% o'clock, descends more than 50% when its optimum distance leaves 1mm.
Have again,, can make the 1st reflecting part 56g than the 2nd reflecting part 56h reflectivity height, specifically constitute the 1st reflecting part 56g with high reflection processing of aforesaid light or the high reflecting material of light in order accurately to carry out the position probing of lens.Carry out when the high reflection processing of this light, only the projecting strip part branch is processed and get final product, thereby, can process easily and accurately.Also have, the high reflection of so-called light of the present invention, the meaning is that the 1st reflecting part 56g compares reflectivity height when measuring under the same conditions with the 2nd reflecting part 56h.
In addition, as the 1st reflecting part 56g of detected portion, be not limited to be arranged on cam wheel 56 and face light shaft positive cross, interior all sides of cam part 56b, for example, also can be set in the outer circumferential side of cam part 56b.Have, in the present embodiment, the 1st reflecting part 56g and cam part 56b branch are arranged again, and but, also can divide configuration photoelectric sensor 61 at the projecting strip part of cam part 56b, be also used as the 1st reflecting part 56g of cam part 56b.In addition, by the 1st reflecting part 56g of photoelectric sensor 61 detections, the position of circumferencial direction can not repeated with cam part 56b when lens keep butt between the end of body 22 and cam part 56b.For example, can be arranged on and clip turning axle and the opposed position of cam part 56b.At this moment, as long as also be the length of the 1st reflecting part 56g is equated with the bias of cam part 56b and the 1st reflecting part 56g than the bias of the abutting part 22d of length weak point, photoelectric sensor 16 and the lens maintenance body 22 of cam part 56b.
Also have, in the present embodiment, be illustrated about the situation that adopts photoelectric sensor 61, but, as long as photoelectric sensor has illuminating part and light accepting part, changes output signal corresponding to the variation of the reflection of light light that shines from illuminating part, be not limited to export the signal corresponding with light quantity.For example, also can adopt photoelectric sensor, only according to the position of the specific cam wheel of variable in distance of photoelectric sensor and cam wheel with position detecting element (PSD) and 2 segmented photodiodes as photoelectric sensor.In addition, also can be not adopt photoelectric sensor, and adopt the mechanical switch sensor, only form part to contact, become the sensor of ON signal based on this contact with the prominent bar of the 1st reflecting part 56g.
In addition, in the present embodiment, about being set, jut (projecting strip part) forms the 1st reflecting part 56g and the 2nd reflecting part 56h, again the 1st reflecting part 56g is implemented the high reflection processing of light or constitutes the 1st reflecting part 56g by the high reflecting material of light to represent, but, also jut can be set, and the 2nd reflecting part 56h is directly implemented the high reflection processing of light or constitutes the 2nd reflecting part 56h by the high reflecting material of light, form the 1st reflecting part 56g.That is,,, photoelectric sensor 61 gets final product thereby can detecting difference so long as on the face of cam wheel 56 and optical axis approximate vertical lens unit 12, form the different part of reflectivity.In this situation that jut is not set, reflective photoelectric sensor 61 is as long as select about 2.2mm etc. of about 4mm, GP2S700HCP (SHARP corporate system) of about 6mm, the EE-SY201 (OMRON corporate system) of the goods longer than said products with the optimum distance of detected material, for example RPR-220UC30N (ROHM corporate system).In addition, the 2nd reflecting part 56h is directly implemented the high reflection of light add man-hour, except above-mentioned processing, so long as form recess or slot part on the whole, change to the distance of photoelectric sensor 61, or form the reflection of incident light light path that jog changes from photoelectric sensor 61 and get final product.
Also have, on the difference of reflectivity, preferably have poor more than 50%, to allow to the output signal of switches light electric transducer 61 between ON signal and OFF signal.
In addition, any one of (prominent bar or non-prominent bar) the 1st reflecting part 56g or the 2nd reflecting part 56b can be made as the member with permeability or hole portion is set.Have the member of permeability or be arranged to have hole portion by being arranged to like this, the difference that can make above-mentioned reflectivity is more than 50% really, have again, except photoelectric sensor 61 with the reflection-type of illuminating part 61a and light accepting part 61b and row arrangement, can also adopt across cam wheel 62 in the above with the photoelectric sensor of the infiltration type of following configuration illuminating part and light accepting part.
The 1st reflecting part 56g forms, and is shorter than cam part 56b in a circumferential direction, and is accommodated in the scope of cam part 56b.Specifically, the equal in length of the length of the 1st reflecting part 56g and center side cam surface 56d.And, when photoelectric sensor 61 keeps body 22 with center side cam surface 56d butt at lens, acceptance is from reflected light, the output signal of the 1st reflecting surface 56g, when lens keep body 22 with end side cam surface 56e butt, when lens keep body 22 to arrive the end of moving range of optical axis directions, accept reflected light, output signal from the 2nd reflecting surface 56h.Also have, the position of the circumferencial direction of the 1st reflecting part 56g and center side cam surface 56d is set the suitable amount of position deviation that keeps the abutting part 22d of body 22 with photoelectric sensor 61 and lens that departs from for.
So, when lens kept body 22 to be positioned at reference position or reference range, preferably the 1st reflecting part 56g came and photoelectric sensor 16 opposed positions.Also have, as the reference position, as long as be set at reception position (the non-driving of optical lens system, non-zoom position), predetermined zoom position, unlimited focal position, nearest focal position or focal position etc. arbitrarily, also they can be made up, are provided with a plurality of reference positions.In addition, as reference range,, also they can be made up, are provided with a plurality of reference range as long as be set at the scope of accommodating, zooming range, focus etc. arbitrarily.
In addition, the height of cam part 56b is corresponding to the decision of the lens amount of broadcasting of necessity, the height of the 1st reflecting part 56g corresponding to the top condition decision of photoelectric sensor 61, but, in the present embodiment, be to make the prominent bar of the 1st reflecting part 56g form highly than cam part 56b and end side cam surface 56e.Thereby, when the 1st reflecting part 56g being carried out the high reflection processing of light (for example white spraying), can not impact (for example, cam part 56b is also by spraying white) and process cam part 56b.
Pocket telephone 1 do not have an illustrated control part, the position when between ON signal and OFF signal, switching according to signal from photoelectric sensor 61, the origin position of specific cam wheel 56 is according to the position of rotation of this origin position control cam wheel 56.
In the present embodiment, stipulate the hardness of above-mentioned cam part 56b and abutting part 22d, specifically, both sides' hardness is equal or make cam part 56b bigger than abutting part 22b hardness.If the hardness of abutting part 22d is big, regulation position that can a grinding cam part 56b during then long-term butt, lens keep body 22 can straight line not move along optical axis direction (promptly, all move ormal weight with the stipulated time at an arbitrary position), can not carry out the position probing of lens maintenance body 22 exactly.On the other hand, if equal or make cam part 56b hardness big, then suppress the partly of cam part 56b, thereby can carry out the position control that lens keep body 22 for a long time exactly.Also have, among the present invention, so-called equal hardness, as long as be meant on Rockwell's hardness to have ± degree of difference in 10% the scope, for example, during by the polycarbonate resin builder cam gear 56 of the fluororesin that has mixed 15% Rockwell's hardness (ASTM-D785) 122, adopting lens to keep the Rockwell's hardness of body 22 is that material below 135 gets final product.
According to above embodiment, motor 13 be configured to output shaft 13b with the direction of the light shaft positive cross of lens combination 21 on extend, via transmission mechanism 53 rotation of output shaft 13b is converted to translation motion towards optical axis direction, keep body 22 to transmit to lens, thereby, compare in the situation of optical axis direction tandem configuration with the output shaft 13b of lens combination 21, motor body 13a and motor, can realize slimming.In other words,, increased options, improved design freedom output shaft 13b and light shaft positive cross with respect to the existing situation that just output shaft 13b is parallel to the optical axis configuration.
For example, with motor 13 be arranged on lens combination 21 radial outside or with shutter unit 12 (shutter with matrix 41) configuration side by side, thereby realize slimming.And, can be formed in the thin slim shape of optical axis direction with matrix 41, lens with the global shape of matrix 23, substrate lid 15, substrate 16 with stacking gradually shutter.
On transmission mechanism 53, setting have with respect to the cam part 56b of the cam surface 56c of the face tilt of light shaft positive cross, along with moving perpendicular to the face of optical axis along this cam part, keep body 22 along optical axis direction guiding lens, thereby, can set the mobility that lens keep body 22 by the pitch angle of cam surface 56c and the adjusting of height, for example, even the rotational speed of motor 13 is constant, motor 13 overruns also can change the translational speed that lens keep body 22, even perhaps also can make lens keep body 22 not move at optical axis direction.In other words, can seek the facilitation of control of motor 13 and the mitigation of control accuracy.
By being provided with lens are kept the spring 57 of body 22 to the cam surface 56c application of force, thereby, not only can raise lens based on the rising of cam surface 56c and keep body 22 channeling conducts, and can make lens keep body 22 to chase after from the decline channeling conduct of cam surface 56c.
Because on the cam wheel 56 around the axle rotation that is parallel to optical axis cam part 56b is set, the guiding lens keep body 22, so, realize slimming at optical axis direction.That is, because in general cam wheel is in the thin slim shape of turning axle direction, institute is so that rotating shaft parallel makes turning axle perpendicular to optical axis in the optical axis ratio, and the configuring area of optical axis direction diminishes, and realizes slimming.
Because gear part 56a is arranged on the part of the peripheral part of cam wheel 56, cam part 56b is arranged on other parts of the peripheral part of cam wheel 56, so shape is fairly simple, the setting of shape and configuring area, assembling geometric ratio are easier to.In addition, by cam part 56b is arranged on peripheral part, thereby, be arranged in all sides situation relatively, cam part 56b is elongated with respect to the length of the anglec of rotation, thereby, can relax the pitch angle of cam surface 56c, can guide lens to keep body 22 swimmingly.
Because configuration photoelectric sensor 61, the catoptrical variation according to the rotation along with cam wheel 56 produces detects the position that lens keep body 22, so can detect the position that lens keep body 22 easy and exactly.
The 1st reflecting part 56g is more side-prominent to photoelectric sensor than the 2nd reflecting part 56h, simultaneously, handle luminance factor the 2nd reflecting part 56h height on the surface that makes the 1st reflecting part 56g, thereby, difference to the light quantity of photoelectric sensor 61 reflection becomes bigger between the two, detects the border of the 1st reflecting part 56g and the 2nd reflecting part 56h more accurately.
In the present embodiment, begin arranged in order cam wheel 56 from the inboard according to detected portion 56f (the 1st reflecting part 56g and the 2nd reflecting part 56h), cam part 56b.Thereby, the circumferential component that can take in cam wheel 56 and cam wheel 56 with the space of necessary minimum, but also can carry out the position control of lens for a long time exactly.Specifically, by at the most inboard formation detected portion 56f, thereby, the concentrically ringed central side of the photoelectric sensor 61 of arranged opposite can be made, thereby the miniaturization with the optical axis vertical direction can be realized near cam wheels 56.In addition, by forming cam part 56b in the outside, thereby, can compare and be formed on inboard situation and relax above-mentioned angle of inclination more, thereby, be difficult for keeping producing slippage between the abutting part 22d and central cam face 56c under the action of gravity of body 22 in said lens.
In the present embodiment, shown near the enlarged drawing the lens of Figure 10 keep the through hole 22c of body 22, bearing portion as the axis of guide 51 has 2 through hole 22c1,22c2, through hole 22c1,22c2 form respectively with respect to the different V-shape in the axis of guide 51 angular direction, the lowest point part sliding contact of the axis of guide 51 and V-shape, lens keep body 22 to be directed to, thereby, get rid of lens and keep rocking of body 22.
Specifically, the through hole 22c1 of conduct the 1st bearing portion that on the 22a of directed section, forms, formation has the roughly fan-shaped of V-shape, form sliding contacting part 22e, the 22f of taper at the figure of the axis of guide 51 upper left side (the nearside of abutting part 22d, the farthest side of the spring mounting 22k of portion), right side on the figure of the axis of guide 51 (farthest side of abutting part 22d, the spring mounting 22k of portion nearside) forms circular-arc 22g.Relative with it, as the through hole 22c2 of the 2nd bearing portion, formation has the roughly fan-shaped of V-shape, and the right side forms sliding contacting part 22h, the 22i of taper on the figure of the axis of guide 51, forms circular-arc 22j at the figure of the axis of guide 51 upper left side.That is, as with the V-shape part of the sliding contacting part of the axis of guide 51, form and clip the shape that the axis of guide 51 is positioned at 180 ° of different directions positions.Thereby, can get rid of lens and keep rocking of body 22.Clip the axis of guide 51 opposed positions by like this abutting part 22d and the spring mounting 22k of portion being configured in, make nearside of 2 V-shapes towards abutting part 22d, another is towards the nearside of the spring mounting 22k of portion, the butt of the axis of guide 51 and bearing portion is more reliable thus, can get rid of and rock.
Also have, if the angle too small of V-shape, then the axis of guide 51 is held too tightly, become the load when driving, for this reason, preferably the opening angle of V word is more than 90 °, reduces load.In addition, in the present embodiment, the accuracy of rocking from the easy degree made and eliminating, about formation have 2 bearing portions of V-shape, the situation that both sides' V-shape is arranged on 180 ° of different directions is illustrated, but, it is several also can making the bearing number, just can get rid of and rocks as long as have difform bearing portion at least.Also have, clip the axis of guide 51 opposed positions by being configured in by the lowest point part of the sliding contacting part 22e of taper, V-shape that 22f forms and the spring mounting 22k of portion to the major general, thereby, rely on the pushing of coil spring 57 and make the axis of guide 51 reliably with sliding contacting part 22e, 22f sliding contact, thereby can make bias stabilization.
The present invention is not limited to above embodiment, can implement in every way.
The object that is suitable for optical module of the present invention is not limited to pocket telephone, applicable to various devices such as digital camera, monitoring cameras.
Drive source is configurable in suitable position with respect to lens, shutter, imaging apparatus etc.
Transmission mechanism is not limited to use cam so long as keep the body transmission to get final product to lens the rotation of drive source.Can utilize the slide block link mechanism that for example contains rack-and-pinion, will be converted to translation motion around rotation perpendicular to the axle of optical axis to optical axis direction.
In addition, utilize cam to realize that lens keep body when the translation motion of optical axis direction, as long as the mobile height change that makes the optical axis direction of cam surface by cam is not limited on the cam wheel that rotates around the axle that is parallel to optical axis cam is set.For example, can utilize the cam that changes corresponding to the position of Zhou Fangxiang around perpendicular to the axle rotation of optical axis, from the distance of axial rotary circumference, be converted to translation motion to optical axis direction, also the cam surface that tilts at the face perpendicular to optical axis can be driven along the face rectilinearity with light shaft positive cross, be converted to translation motion to optical axis direction.
Utilization will be converted under the situation of the translation motion of optical axis direction around rotatablely moving of the axle that is parallel to optical axis around the cam wheel of the axle rotation that is parallel to optical axis, can make cam wheel and worm mesh, and cam wheel is also used as worm gear.In addition, between worm gear and cam wheel, also can there be other gears.Also worm screw can be set on output shaft, for example on the axle parallel of the rotation of transmitting output shaft, worm screw be set with output shaft.If cam part and gear part are arranged to concentric circles, can consider that then purpose, effect are configured in suitable position.For example shown in the embodiment, cam part 56b is configured in the position of staggering with cam part 56a, the rotary middle spindle that cam part 56b and gear part 56a are configured to cam wheel 56 is the round shape of the same diameter at center, thereby, can realize the miniaturization of cam wheel 56.In addition, when cam part 56b and gear part 56a must get when long at circumferencial direction, do not illustrate, but, because at the inboard cam part 56b that forms of gear part 56a, side forms detected portion 56f within it again, thereby, can make cam part 56b get length, and keep cam wheel 56 integral miniaturization, and under the action of gravity of lens maintenance body 22, between abutting part 22d and central cam face 56c, be difficult to produce slippage.
As long as photoelectric sensor has illuminating part and light accepting part, changes output signal corresponding to the variation of the reflection of light light that shines from illuminating part, be not limited to export the signal corresponding with light quantity.For example, also can adopt photoelectric sensor, only according to the position of the specific cam wheel of variable in distance of photoelectric sensor and cam wheel with position detecting element (PSD) and 2 segmented photodiodes etc. as photoelectric sensor.
Detected portion forms as long as make reflected light change ground along with the rotation of cam wheel.Thereby, the 1st reflecting part of the light of retroreflective photoelectric sensor in the time of for example can only being arranged on lens and keeping body to be in the 1st position, the light of retroreflective photoelectric sensor not fully when lens keep body to be in the 2nd position.In addition, be not limited to be arranged on cam wheel and face light shaft positive cross, interior all sides of cam part, for example, can be at the radial outside configuration photoelectric sensor of cam wheel, radially irradiation and reflection along cam wheel detect light, also can set detected portion at the outer circumferential side of cam part.
In addition, by the 1st reflecting surface of photoelectric sensor detection, the position of its circumferencial direction can not repeated with cam part when lens kept butt between the end of body and cam part.For example, can be arranged on and clip turning axle and the opposed position of cam part.At this moment, as long as the length of the 1st reflecting surface is equated with the bias of cam part and the 1st reflecting surface than the bias of the abutting part of length weak point, photoelectric sensor and the lens maintenance body of cam part.
Among the application, can extracting go out following invention.
A kind of optical module comprises:
Lens;
Keep the lens of said lens to keep body;
The lens matrix that keeps said lens to keep body and it can be moved along the optical axis direction of said lens;
Drive source; With
The cam wheel that relies on above-mentioned drive source drives power to use matrix around the axle rotation and the driving said lens of the optical axis that is parallel to said lens,
Above-mentioned cam wheel comprises:
Gear part, itself and worm screw or the gearing mesh of transmitting above-mentioned drive source drives power; With
Cam part, it is arranged to the concentric circles with said gear portion, and have with respect to the cam surface of the face tilt of above-mentioned light shaft positive cross,
Said lens keep body possess with above-mentioned cam surface butt, along with the rotation of above-mentioned cam wheel by abutting part along above-mentioned optical axis direction guiding.
In this invention, the output shaft of motor can not be perpendicular to the direction of optical axis, and for example the output shaft of motor can be parallel to optical axis.And, in this invention, also can comprise the various optimal ways same with the application's invention.For example, said gear portion is arranged on the part of the peripheral part of above-mentioned cam wheel, and above-mentioned cam part is arranged on other parts of the peripheral part of above-mentioned cam wheel.
In addition, among the application, can extracting go out following invention.
A kind of optical module comprises:
Lens;
Keep the lens of said lens to keep body;
The lens matrix that keeps said lens to keep body and it can be moved along the optical axis direction of said lens;
Drive source; With
Rely on above-mentioned drive source drives power rotation and drive the cam wheel of said lens with matrix,
Also comprise photoelectric sensor, this photoelectric sensor is to above-mentioned cam wheel irradiates light and accept reflected light, the position that the above-mentioned catoptrical change-detection said lens that produces according to the rotation along with above-mentioned cam wheel keeps body.
In this invention, the output shaft of motor can not be perpendicular to the direction of optical axis, and for example the output shaft of motor can be parallel to optical axis.In addition, cam wheel is not limited to around the axle rotation that is parallel to optical axis, for example, also can be the cam wheel that rotates around the axle perpendicular to optical axis.And, in this invention, also can comprise the various optimal ways same with the application's invention.For example, above-mentioned cam wheel have set for above-mentioned cam part concentric circles, will be from the light of above-mentioned photoelectric sensor detected portion to above-mentioned photoelectric sensor reflection, above-mentioned detected portion has: when said lens keeps body to be in the 1st position to 1st reflecting part of above-mentioned photoelectric sensor reflection from the light of above-mentioned photoelectric sensor; When keeping body to be in the 2nd position with said lens to the light of above-mentioned photoelectric sensor reflection from above-mentioned photoelectric sensor, reflectivity and with the distance of above-mentioned photoelectric sensor in any one 2nd reflecting part different at least with above-mentioned the 1st reflecting part.
In addition, among the application, can extracting go out following invention.
A kind of optical module comprises:
Lens;
The lens matrix that keeps said lens;
The shutter matrix of the blade that maintenance opens and closes the light path of said lens;
Be provided with the substrate that utilizes said lens to form the imaging apparatus of light image; With
Cover the lid member of the above-mentioned imaging apparatus side of above-mentioned substrate,
Stacked gradually above-mentioned shutter matrix, said lens matrix, above-mentioned lid member, aforesaid substrate,
Aforesaid substrate has with above-mentioned shutter with basic, said lens with matrix and the equal area of above-mentioned lid member, on the face of the opposition side of the face that above-mentioned imaging apparatus is set of aforesaid substrate, only is provided with the flexible printed circuit board that extends along face.
A kind of optical module comprises:
Lens;
The lens matrix that keeps lens;
The shutter matrix of the blade that maintenance opens and closes the light path of said lens;
Be provided with the substrate that utilizes said lens to form the imaging apparatus of light image; With
Cover the lid member of the above-mentioned imaging apparatus side of above-mentioned substrate,
Stacked gradually above-mentioned shutter matrix, said lens matrix, above-mentioned lid member, aforesaid substrate,
Aforesaid substrate has with above-mentioned shutter with basic, said lens with matrix and the equal area of above-mentioned lid member, in the face of face that above-mentioned imaging apparatus is set and opposition side thereof, only electronic unit is installed being provided with on the face of above-mentioned imaging apparatus.
In these inventions, can be not used in the formation of mobile lens.In addition, global shape can not be slim shape.And, among this present invention, also can comprise the various optimal ways same with the present application.
Claims (15)
1. optical module wherein, comprising:
Lens;
Keep described lens and make its lens that can move keep body along the optical axis direction of these lens;
Drive source with output shaft of output drive strength;
To pass to the transmission mechanism that described lens keep body from the driving force of described output shaft output;
Blade;
Keep described blade and make the shutter matrix of its light path that can open and close described lens;
Utilize described lens to form the imaging apparatus of light image; With
Be provided with the substrate of described imaging apparatus,
With respect to described optical axis direction, stack gradually the described shutter of configuration from a direction and keep body, described substrate with matrix, described lens,
Described drive source keeps body with respect to described shutter with matrix and described lens, with the direction of described optical axis approximate vertical on configuration side by side.
2. optical module according to claim 1, wherein,
Described drive source is configured to described output shaft with respect to described optical axis approximate vertical,
Described transmission mechanism comprises worm screw and cam wheel,
Described worm screw is transmitted from the driving force of described output shaft output, and around with respect to the roughly axle rotation of quadrature of described optical axis,
Described cam wheel have with described worm screw or transmit described worm screw rotation gearing mesh gear part and with respect to the cam part of the face tilt of described light shaft positive cross, and around the axle rotation that is roughly parallel to described optical axis,
Described lens keep body and described cam part butt and are guided along described optical axis direction.
3. optical module according to claim 2, wherein,
Also comprise position detecting device, this position detecting device has the detected portion that is configured on the described cam wheel and is configured near the test section of described cam wheel,
Described position detecting device utilizes described test section to detect the rotation of described cam wheel, detects the position of described lens thus.
4. optical module according to claim 3, wherein,
Described cam wheel disposes described detected portion, described cam part successively from this cam wheel inboard.
5. optical module according to claim 2, wherein,
Described cam wheel disposes described cam part and described gear part according to the concentric circles of this cam wheel.
6. optical module according to claim 1, wherein,
Described transmission mechanism possesses: around the axle rotation that is roughly parallel to described optical axis and be approximately perpendicular to the cam wheel that is formed with jut on the face of described optical axis,
Near described jut, possesses the position detecting device that detects described jut.
7. optical module according to claim 1, wherein,
Described transmission mechanism possesses: around the axle rotation that is roughly parallel to described optical axis and be approximately perpendicular to the cam wheel that is formed with the different part of reflectivity on the face of described optical axis,
Possess photoelectric sensor near being approximately perpendicular to the face of described optical axis, this photoelectric sensor has light-emitting component and photo detector.
8. optical module according to claim 1, wherein,
Possess the axis of guide that guides described lens maintenance body along described optical axis direction,
Described lens keep body to have a plurality of bearing portion by described axis of guide guiding, and this a plurality of bearing portion has different shapes.
9. optical module according to claim 1, wherein,
Described lens keep body to possess abutting part and spring mounting portion with described transmission mechanism butt, the coil spring of mounting cone shape and make it the application of force in this spring mounting portion.
10. optical module according to claim 9, wherein,
Described lens keep body to have 2 bearing portions that guided by the described axis of guide, described 2 bearing portions form with respect to the different V-shape in described axis of guide angular direction separately, the lowest point part sliding contact of the described V-shape of the described axis of guide and each bearing portion, the lowest point part of one side's of described bearing portion V-shape and described spring mounting portion are configured in and clip the opposed position of the described axis of guide, and the opposing party's of described bearing portion V-shape is towards described spring mounting portion.
11. optical module according to claim 1, wherein,
Described transmission mechanism possesses the cam wheel around the axle rotation that is roughly parallel to described optical axis, this cam wheel have transmission from the gear part of the rotation of described drive source and with respect to the cam part of the face tilt of described light shaft positive cross,
Described lens keep body and described cam part butt and are guided along described optical axis direction.
12. optical module according to claim 11, wherein,
Equal with the abutting part hardness of described cam part butt in described cam part and the described lens retaining member, perhaps the hardness of cam part is big.
13. optical module according to claim 11, wherein,
Described cam wheel has detected portion, disposes described detected portion, described cam part successively from the inboard,
Described optical module possesses position detecting device, and this position detecting device has near the test section that is configured in the described detected portion, and this position detecting device utilizes described test section to detect the rotation of described cam wheel, detects the position of described lens thus.
14. optical module according to claim 11, wherein,
The extreme lower position of described cam part is set at the position that part and the face described light shaft positive cross that never forms described cam part begins to form step.
15. a portable terminal wherein, possesses:
The terminal framework; With
Optical module, it is accommodated in the described terminal framework, makes the light image imaging from peristome set on the described terminal framework,
Described optical module comprises:
Lens;
Keep described lens and make its lens that can move keep body along the optical axis direction of these lens;
Drive source with output shaft of output drive strength;
To pass to the transmission mechanism that described lens keep body from the driving force of described output shaft output;
Blade;
Keep described blade and make the shutter matrix of its light path that can open and close described lens;
Utilize described lens to form the imaging apparatus of light image; With
Be provided with the substrate of described imaging apparatus,
With respect to described optical axis direction, stack gradually the described shutter of configuration from a direction and keep body, described substrate with matrix, described lens,
Described drive source keeps body with respect to described shutter with matrix and described lens, with the direction of described optical axis approximate vertical on configuration side by side.
Applications Claiming Priority (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP129619/2005 | 2005-04-27 | ||
| JP2005129619 | 2005-04-27 | ||
| JP188642/2005 | 2005-06-28 | ||
| JP188643/2005 | 2005-06-28 | ||
| JP266625/2005 | 2005-09-14 | ||
| JP275561/2005 | 2005-09-22 | ||
| JP275562/2005 | 2005-09-22 | ||
| JP279625/2005 | 2005-09-27 | ||
| JP279623/2005 | 2005-09-27 | ||
| JP311766/2005 | 2005-10-26 | ||
| JP311763/2005 | 2005-10-26 | ||
| JP311765/2005 | 2005-10-26 | ||
| JP328859/2005 | 2005-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101167006A true CN101167006A (en) | 2008-04-23 |
| CN100578277C CN100578277C (en) | 2010-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680014058A Expired - Fee Related CN100578277C (en) | 2005-04-27 | 2006-04-27 | Optical module and portable terminal |
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| Country | Link |
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| CN (1) | CN100578277C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103780809A (en) * | 2012-10-17 | 2014-05-07 | 三美电机株式会社 | Camera module |
| CN107153245A (en) * | 2016-03-03 | 2017-09-12 | 柯尼卡美能达株式会社 | Lens subassembly and camera device |
| CN107589537A (en) * | 2016-07-06 | 2018-01-16 | 吉林亚泰中科医疗器械工程技术研究院股份有限公司 | A kind of Laser Scanning Confocal Microscope of big visual field tomography |
| CN107797488A (en) * | 2017-09-30 | 2018-03-13 | 维沃移动通信有限公司 | A kind of displacement control system and its control method, mobile terminal |
| CN108831192A (en) * | 2018-09-07 | 2018-11-16 | 吉林大学 | Mechanical transport crossing anticollision driving trace guide line laser projection system and its control method |
| CN113383258A (en) * | 2019-02-07 | 2021-09-10 | 株式会社理光 | Optical system, imaging system, and imaging apparatus |
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2006
- 2006-04-27 CN CN200680014058A patent/CN100578277C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780809A (en) * | 2012-10-17 | 2014-05-07 | 三美电机株式会社 | Camera module |
| CN103780809B (en) * | 2012-10-17 | 2018-06-26 | 三美电机株式会社 | Camera module |
| CN107153245A (en) * | 2016-03-03 | 2017-09-12 | 柯尼卡美能达株式会社 | Lens subassembly and camera device |
| CN107589537A (en) * | 2016-07-06 | 2018-01-16 | 吉林亚泰中科医疗器械工程技术研究院股份有限公司 | A kind of Laser Scanning Confocal Microscope of big visual field tomography |
| CN107797488A (en) * | 2017-09-30 | 2018-03-13 | 维沃移动通信有限公司 | A kind of displacement control system and its control method, mobile terminal |
| CN108831192A (en) * | 2018-09-07 | 2018-11-16 | 吉林大学 | Mechanical transport crossing anticollision driving trace guide line laser projection system and its control method |
| CN108831192B (en) * | 2018-09-07 | 2023-09-22 | 吉林大学 | Laser projection system for anti-collision driving track guide line of automobile traffic intersection and control method thereof |
| CN113383258A (en) * | 2019-02-07 | 2021-09-10 | 株式会社理光 | Optical system, imaging system, and imaging apparatus |
| CN113383258B (en) * | 2019-02-07 | 2023-08-18 | 株式会社理光 | Optical system, imaging system, and imaging apparatus |
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