WO2006043456A1 - カメラモジュール及びこれを備えた携帯端末並びに情報端末 - Google Patents
カメラモジュール及びこれを備えた携帯端末並びに情報端末 Download PDFInfo
- Publication number
- WO2006043456A1 WO2006043456A1 PCT/JP2005/018795 JP2005018795W WO2006043456A1 WO 2006043456 A1 WO2006043456 A1 WO 2006043456A1 JP 2005018795 W JP2005018795 W JP 2005018795W WO 2006043456 A1 WO2006043456 A1 WO 2006043456A1
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- WIPO (PCT)
- Prior art keywords
- camera module
- shaft
- sliding
- disposed
- lens
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
Definitions
- Camera module portable terminal having the same, and information terminal
- the present invention relates to a compact and lightweight camera module, a portable terminal provided with the same, and an information terminal.
- Camera modules used in mobile terminals are high-speed, high-precision autofocus (similar to ordinary electronic cameras (digital cameras) as the number of pixels of image sensors (CCDs) increases.
- AF focal length change
- zoom focal length change
- a cylindrical lens disposed on the side of the optical system is driven by a motor to drive the zoom lens frame and the AF lens frame, or the same lens frame.
- a mechanism is used in which a cylindrical cam disposed adjacent to each other is driven by a motor, thereby moving the autofocus lens frame and the zoom lens frame to switch between two points of the tele and the macro. .
- the lens frame for autofocusing and zoom lens frame that are only divided by the cylindrical cam is configured to be driven by the lead screw for autofocusing and the lead screw for zooming, respectively, and the lens on the most object side is
- the case is fixed to the front of the case and these lead screws are provided at the corner of one side of the case.
- the case is provided with a guide support of the lens frame on the case, and further the zoom lead screw is placed in the first quadrant around the optical axis.
- the camera module generally uses an electromagnetic motor or pulse motor with a rotor as its drive source.
- An electromagnetic motor using such a rotor requires an electromagnet and a permanent magnet around the rotor and its periphery. Even if the axial length is shortened, the cylindrical portion is indispensable, which causes a bottleneck in downsizing the camera module and also generates noise.
- a friction drive type drive source in which a mechanical vibrator is constituted by a piezoelectric element such as ( ⁇ ⁇ ⁇ ), and a rotor slider is brought into contact with the mechanical vibrator so that vibration of the mechanical vibrator can be taken out as an output. ing.
- Such a friction drive type drive source has low speed but high torque, excellent responsiveness and controllability, enables fine positioning, has holding torque (or holding power) when not energized, and is quiet. It has the advantages of superiority, small size and light weight.
- Patent Document 2 shows an optical apparatus which arranges a piezoelectric element in a lens frame and drives the lens like a scale insect
- Patent Documents 3 and 4 disclose a lens frame drive.
- a lens moving device is shown in which a piezoelectric element is disposed in contact with the end of a feed screw so as to provide a stepwise rotation
- Patent Document 5 discloses an electro-mechanical energy that vibrates by applying an electric signal.
- the lens frame is moved by a feed screw which is brought into contact with the conversion element and rotated by the vibration of the conversion element, or as shown in Patent Document 6, using a linear drive type vibration wave actuator (piezoelectric element)
- a device that directly drives the lens frame is proposed by contact of the elements.
- a piezoelectric element is disposed in either the lens frame or the lens barrel or the lens holder, and the lens is driven by the elliptic motion of the piezoelectric element, or the rotor is disposed at the end of the lead screw. It has also been proposed to arrange a piezoelectric element so as to abut the outer peripheral surface and rotate the rotor to move the lens, and a friction drive type using such a piezoelectric element (PZT) or the like is also proposed.
- Patent Document 7 to Patent Document 12 etc. show in detail as a driving source of
- an electrostatic adsorbing material is used to adsorb dust outside the optical axis region, or a friction material is used to frictionally charge wear powder generated by friction using a resin material for a rotating polygon mirror bearing.
- the slider is moved in an arbitrary direction by frictionally engaging the slider movably along the drive shaft with the drive shaft that reciprocates or stretches and causes the drive shaft to be asymmetrical back and forth.
- a linear actuator that allows the slider to move smoothly with a predetermined friction on the drive shaft in a non-driven state for stable operation. is necessary.
- the drive unit and the driven unit may Contact parts are scraped by friction, scraps contaminate the lens as dust, cause ghosts and flares, etc., and corrosive substances generated by hydrogen sulfide, NOx, ozone and other corrosive gases and acid gases. Deposits such as dust and wear may accumulate. Also, under high temperature and humidity conditions 1, depending on the drive shaft and slider material, composition components may be released and attached to the surface of the material, resulting in contamination of the frictional engagement portion between the slider and drive shaft, The friction may increase and the slider may not move smoothly.
- Patent Document 1 Japanese Patent Application Laid-Open No. 7-63970
- Patent Document 2 Japanese Patent Application Laid-Open No. 5-107440
- Patent Document 3 Japanese Patent Application Laid-Open No. 4-212913
- Patent Document 4 Japanese Patent Application Laid-Open No. 4-212910
- Patent Document 5 JP-A-8-47273
- Patent Document 6 Japanese Patent Application Laid-Open No. 7-104166
- Patent Document 7 Japanese Patent Application Laid-Open No. 7-184382
- Patent Document 8 Patent 2980541
- Patent Document 9 Japanese Patent Application Laid-Open No. 9-37575
- Patent document 10 Unexamined-Japanese-Patent No. 2000-40313 gazette
- Patent Document 11 Japanese Patent Application Publication No. 2002-522637
- Patent Document 12 Japanese Patent Application Laid-Open No. 2003-501988
- Patent Document 13 Japanese Patent Application Laid-Open No. 6-148550
- Patent Document 14 Japanese Patent Application Laid-Open No. 7-77745
- Patent document 15 Unexamined-Japanese-Patent No. 9 294193
- Patent Document 16 Japanese Patent Application Laid-Open No. 9 127451
- Patent Documents 2 to 6 While the techniques described in Patent Documents 2 to 6 are mechanisms for driving a camera lens of a normal size, camera modules used for portable terminals such as mobile phones are always small. Are too large to apply to these mobile devices,
- Patent Documents 13 to 15 are also for adsorbing dust and foreign matter floating inside the optical system, and do not cope with debris scraped off by friction. What is shown in Fig. 1 is a wear dust, and it is only adsorbed by triboelectric charge, so if it stops rotating, it may float as dust and can not be a fundamental solution.
- an object of the present invention to provide a compact and lightweight construction incorporating an autofocus (AF) function and a zoom function by using a friction drive type drive source such as a piezo element, and a piezo element and a driven member. It is an object of the present invention to provide a camera module and a portable terminal and an information terminal provided with the camera module, which cope with shavings and the like generated by frictional contact.
- AF autofocus
- a friction drive type drive source such as a piezo element, and a piezo element and a driven member.
- a first means for solving the above-mentioned problems is a lens holding unit for holding at least one or more optical lenses in a camera module and having a shaft hole, and the shaft hole A shaft member inserted into the lens unit and disposed substantially parallel to the optical axis, and an operating unit contacting the shaft member at an end portion of the lens holding unit, and a piecing element disposed near the shaft hole of the lens holding unit And the dust collection member is disposed in the vicinity of the shaft hole.
- a second means is that, in the first means, the dust collecting member is disposed on the side where the actuating portion of the piezoelectric element in the shaft hole portion abuts on the shaft member.
- a third means is the first means, wherein the shaft hole portion has the dust collecting member on one side and the sliding portion on the opposite side of the dust collecting member with the shaft member interposed therebetween. Forming and circling the shaft member.
- a fourth means is a camera module that holds at least one or more optical lenses, and a lens holding portion having an axial hole, and is inserted into the axial hole and disposed substantially parallel to the optical axis.
- a shaft member, and an actuating portion for contacting the shaft member at an end portion thereof, and a piezoelectric element disposed in the vicinity of the shaft hole portion of the lens holding portion, and an adhesive member is provided in the vicinity of the shaft hole portion. It is arrangement.
- a sixth means is the fifth means, wherein the shaft hole portion communicates with the holding portion of the piezoelectric element at the side where the piezoelectric element is disposed, and the base substantially facing the actuating portion of the piezoelectric element; And the adhesive member is disposed on each side wall substantially facing the lens side.
- a seventh means is that, in the fourth means, the dust collection member is disposed on the side where the actuating portion in the shaft hole portion abuts on the shaft member.
- the shaft hole surrounds the shaft member, and a sliding portion abutting the shaft member on one side sandwiches the shaft member of the sliding portion.
- the contact portion of the piezoelectric element is disposed on the opposite side.
- a ninth means is that, in the first or fourth means, the surface of the portion of the shaft member in contact with the actuating portion is rougher than the non-contact surface.
- a tenth means is the first or fourth means, wherein the lens holding portion includes the piezoelectric element.
- a first elastic member which is a direction substantially orthogonal to the optical axis direction and biases the actuating portion in a direction to abut the shaft member, and a second elastic member which biases the actuating portion in the optical axis direction. It is provided.
- Eleventh means holds a lens holding portion provided with an axial hole portion while holding at least one or more optical lenses in a portable terminal, and is inserted into the axial hole portion and disposed substantially parallel to the optical axis. And a piezoelectric element provided at an end portion of the first lens holding portion and in the vicinity of the shaft hole portion of the first lens holding portion.
- a twelfth means is an electrostrictive element and one end side in the axial direction connected to the electrostrictive element in the camera module, and an axial reciprocating motion or a voltage is applied to the electrostrictive element.
- a lens holding portion coupled with a sliding member which is frictionally engaged with at least a part of the circumferential surface of the driving shaft, and the dust collecting member is disposed in the vicinity of the sliding member. It is what you did.
- a thirteenth means is the twelfth means, wherein a gap is provided in a direction perpendicular to the sliding direction on the side where the sliding member faces the drive shaft, and the gap is formed in the gap so as to abut the drive shaft. It is the installation of the dust collection member.
- a fourteenth means is the thirteenth means, wherein the dust collection member is disposed on an end of the sliding member on the electrostrictive element side and facing the drive shaft or the electrostrictive element circumferential surface. It has been arranged.
- gaps of the sliding member are provided at least at two axial end sides of the drive shaft, and the dust collecting members are disposed in the two gaps, respectively. It is what you did.
- a sixteenth means is that, in the thirteenth means, two or more gaps of the sliding member are provided in the axial direction of the drive shaft, and an adhesive member is provided in at least one of the gaps.
- a seventeenth means is an electrostrictive element and one end side of the electrostrictive element in the axial direction connected to the electrostrictive element in the camera module, and an axial reciprocating motion or a voltage is applied to the electrostrictive element.
- a lens holding portion in which a sliding member that is frictionally engaged with at least a part of the circumferential surface of the driving shaft is coupled, and an adhesive member is disposed in the vicinity of the sliding member. It is.
- a gap is provided in a direction perpendicular to the sliding direction of the side where the sliding member faces the drive shaft, and the adhesive member is disposed in the space. is there.
- a nineteenth means is the eighteenth means, wherein a dust collection member is disposed at the end of the sliding member on the electrostrictive element side and on the side facing the drive shaft or the electrostrictive element circumferential surface. It has been set up.
- the eighteenth means two or more clearances of the sliding member are provided in the axial direction of the drive shaft, and the dust collection member is disposed at least one of the clearances. is there.
- a twenty-second means is that in the twelfth or seventeenth means, the sliding member frictionally engages with the drive shaft at two points.
- a twenty-third means is the twelfth or seventeenth means, wherein the sliding member frictionally engages with the drive shaft at two locations, and an adhesive member is disposed between the two locations.
- a twenty-fourth means is that, in the twelfth or seventeenth means, a surface of a portion of the drive shaft in contact with the sliding member is processed to be rougher than a non-contact surface.
- a twenty-fifth means of the twenty-fifth means is a lens holder holding at least one or more optical lenses in an information terminal, and an electrostrictive element connected to one end side in the axial direction, and a voltage applied to the electrostrictive element. And a sliding member connected to the lens holding portion and frictionally engaged with at least a part of the circumferential surface of the driving shaft, and a driving shaft of the sliding member.
- Camera camera comprising at least one dust collection member and at least one adhesion member and Z or at least one adhesion member disposed in a gap provided in a direction perpendicular to the sliding direction of the facing side
- a housing for accommodating the module, the operating member, the display member, the battery, the communication unit, the camera module, the operating member, the display member, the battery, and the communication unit. And a housing whose size is restricted substantially to the height dimension of the camera module.
- the actuating part of the piezoelectric element abuts against the shaft member and scraps are generated, it is collected by the dust collection member arranged in the vicinity of the shaft hole, so that the lens is contaminated as dust. It is possible to prevent ghosts and flares from
- a small and lightweight camera module having an AF function and a zoom function can be configured.
- the dust collecting member is disposed on the side where the actuating portion of the piezoelectric element in the shaft hole portion abuts against the shaft member, so that dust collecting members are formed in the vicinity where the scum is generated. By placing it, you can collect it before splashing.
- the shaft hole portion has the dust collecting member on one side, and the sliding portion is disposed on the opposite side of the dust collecting member with the shaft member interposed therebetween, By forming it around the shaft member, the IJ dust will be collected by the dust collection member that will not scatter from this shaft hole and will not affect others! /, Can be.
- the fourth means even if the actuating portion of the piezo element abuts against the shaft member and scraps are generated, it is captured by the adhesive member disposed in the vicinity of the shaft hole, contaminating the lens as dust, It is possible to prevent the occurrence of strokes and flares, and to configure the camera module having an auto focus (AF) function and a zoom function in a small size and light weight.
- AF auto focus
- the adhesive member arrangement position in the shaft hole substantially corresponds to the optical axis direction arrangement position of the actuating portion in the piezo element arranged on the opposite side across the shaft member. By being positioned, it can be trapped and collected before it is scattered.
- the shaft hole portion communicates with the holding portion of the piezoelectric element at the side where the piezoelectric element is disposed, and the base and the lens side substantially opposite to the actuating portion of the piezoelectric element.
- the shaft hole surrounds the shaft member, and one side of the sliding portion in contact with the shaft member is the opposite side of the sliding portion across the shaft member.
- the lens holding portion can stably move the shaft member up and down by arranging the contact portion of the piezoelectric element.
- the ninth means by processing the surface of the portion of the shaft member in contact with the actuating portion rougher than the non-contact surface, the drive by the piezoelectric element can be performed more effectively.
- the piezoelectric element in the lens holding portion, is urged in a direction substantially orthogonal to the optical axis direction and in a direction in which the actuating portion abuts on the shaft member.
- the eleventh means even if the actuating portion of the piezoelectric element abuts against the shaft member and scraps are generated, they are collected by the dust collection member disposed in the vicinity of the shaft hole portion, so the lens is contaminated as dust. Can prevent ghosts and flares from
- a small and lightweight portable terminal provided with a camera module having an AF function and a zoom function can be configured.
- a camera module having an auto focus (AF) function and a zoom function can be configured to be compact and lightweight.
- the vicinity of the sliding member includes a position facing the electrostrictive element which is good at any position as long as the sliding member faces the drive shaft.
- a gap is provided in a direction perpendicular to the sliding direction on the side where the sliding member faces the drive shaft, and the dust collection member is formed in the gap so as to abut on the drive shaft. Space can be saved and the size can be reduced.
- the dust collection member is disposed at the end of the sliding member on the electrostrictive element side and on the side facing the drive shaft or the electrostrictive element circumferential surface. By arranging the dust collection member at the end of the electrostrictive element, it is possible to effectively collect the generated shavings.
- clearances of the sliding member are provided at least at two places on both end sides in the axial direction of the drive shaft, and the dust collecting members are respectively disposed in the clearances of the two places. It is possible to effectively remove deposits such as ij residue. In particular, by arranging the dust collection member on the upper and lower end side of the drive shaft which is likely to generate dust, it is possible to supplement the dust before it scatters.
- the gap of the sliding member is provided in two or more places in the axial direction of the drive shaft, and the adhesive member is provided in at least one place of the gap. .
- a camera module having an auto focus (AF) function and a zoom function can be configured to be compact and lightweight.
- the vicinity of the sliding member includes a position facing the electrostrictive element which is good at any position as long as the sliding member faces the drive shaft.
- the eighteenth means, since a gap is provided in a direction perpendicular to the sliding direction on the side where the sliding member faces the drive shaft, and the adhesive member is disposed in the gap, space saving is achieved. It can be small-sized.
- the dust collection member is disposed at the end on the electrostrictive element side of the sliding member and on the side facing the drive shaft or the circumferential surface of the electrostrictive element, By arranging a dust collection member at the end of the electrostrictive element, it is possible to effectively remove scraps that can not be collected by the adhesive member. Can be collected.
- the clearances of the sliding member are provided at two or more places in the axial direction of the drive shaft, and the dust collection member is provided at at least one place of the clearance, It becomes possible to collect the scraps that can not be collected by the dust collection member, and the deposit collection performance is further improved.
- the clearances of the sliding member are provided at least at two places on both axial end sides of the drive shaft, and the dust collecting members are respectively disposed in the clearances of the two places. Residues and other deposits can be removed effectively.
- the dust collection members on the upper and lower end portions of the drive shaft, which tends to generate scum, it is possible to supplement the scaly before it scatters.
- the sliding member frictionally engages with the drive shaft at two points, the sliding location is dispersed, and concentration of the pressing location on the drive shaft is avoided to prevent scraping of scraps. It is possible to suppress the generation and make the optical axis of the lens more stable.
- the adhesive member since the adhesive member is disposed between the two places, the adhesive member can be disposed without adding a disposition space of the adhesive member.
- the drive by the electrostrictive element can be performed more effectively. And, it is possible to reduce the friction loss of the sliding surface.
- the camera module described in the twelfth means to the twenty-fourth means can be incorporated, and an information terminal having an auto focus (AF) function and a zoom function can be configured to be small and lightweight.
- AF auto focus
- FIG. 1 is an external perspective view of the camera module according to the embodiment when (A) is viewed from the subject side lens direction, and (B) is an external perspective view also when the image sensor side force is also viewed.
- FIG. 2 A perspective view of the camera module of the embodiment in which the image sensor side force of (B) in FIG. 1 is also seen, (A) is a perspective view with the image sensor module removed, and (B) is a perspective view with the side cover removed. is there.
- FIG. 3 is an exploded view showing a configuration of an imaging device module. 4)
- (A) is a perspective view with the image pickup device-side lower cover removed
- (B) is a perspective view with the first lens holding frame holding the third lens group removed
- FIG. 11C is a perspective view of the second lens holding frame from which the second lens holding frame is removed.
- FIG. 5 A perspective view showing the mounted state of electrical components such as an inductor, a sensor, and a capacitor.
- FIG. 8 is a plan view (A) of the second lens holding frame that holds the second lens group, and a perspective view (B) showing the force on the piezoelectric element side with the flexible substrate removed.
- FIG. 9 A perspective view (A) showing the relationship between the first shaft member (motor shaft) and the second shaft member (guide shaft) of the second lens holding frame that holds the second lens group, and a piezoelectric element It is sectional drawing (B) which showed the contact state of the 1st shaft member (motor shaft).
- FIG. 10 (A) is a plan view of another embodiment of the second lens holding frame for holding the second lens group, and (B) is a sectional view of the piezoelectric element and the first shaft member (motor shaft).
- FIG. 7 is a cross-sectional view showing the dust collecting member and the adhesive member provided in the contact state and the first bearing portion.
- ⁇ 12] shows a lens and an image pickup element constituting an optical system in the camera module of the embodiment, in which (A) shows a state in which the lens is on the wide angle side and (B) shows a state in which the lens is on the telephoto side.
- FIG. 1 shows a lens and an image pickup element constituting an optical system in the camera module of the embodiment, in which (A) shows a state in which the lens is on the wide angle side and (B) shows a state in which the lens is on the telephoto side.
- (A) of the piezoelectric element used in the camera module according to the embodiment is a perspective view
- (B) and (C) are diagrams for explaining an operation principle.
- FIG. 15 A schematic cross-sectional view of a camera module of a drive portion in Embodiment 2. [FIG.
- FIG. 16 A perspective view (A) of the camera module in FIG. 15 as well as an object side lens direction force (A), and a perspective view (B) as seen from the imaging device direction.
- A object side lens direction force
- B a perspective view of the camera module according to Embodiment 2
- a state where the lens is on the most telephoto side (a) and a state where the lens is on the widest side are also shown (b).
- FIG. 18 A view showing the contact state of the sliding member and the drive shaft, which is a side sectional view (a), a flat sectional view (b) and a main part sectional view (c).
- a structural explanatory view of a camera module according to a second embodiment wherein a left side view (a), a top view (b), a right side view (c), a perspective view from lower left (d), upper right In the perspective views (e) and (b), a cross-sectional view taken along the line A-A (f), a cross-sectional view taken along the line B-B in the same (b) (g), and a cross-sectional view taken along the line C-C in the same (b) is there.
- FIG. 20 is a perspective view (A) showing the overall configuration of the camera module of Embodiment 2 and a perspective view (B) when the cover is attached.
- FIG. 21 A view schematically showing an example of a mobile phone in which the camera module of Embodiment 2 is incorporated.
- Embodiment 1 will be described with reference to FIGS. 1 to 14 and 21.
- FIG. 1 is an external perspective view of the camera module of Embodiment 1 in which (A) also looks at the subject side lens direction force, (B) is an external appearance perspective view in which also the imaging device side force is also seen, and FIG. 3A is a perspective view of the camera module of the embodiment viewed from the image pickup device side of FIG. 2A, FIG. 3B is a perspective view of the camera module of FIG. 4 is a perspective view of the camera module of Embodiment 1 with (A) removing the lower cover on the imaging device side, and (B) with the first lens holding frame holding the third lens group removed.
- FIG. 5C is a perspective view of FIG. 5C with the second lens holding frame removed to further hold the second lens group, and FIG.
- FIG. 5 is a perspective view showing the mounted state of electrical components such as inductors, sensors and capacitors.
- 6 shows the first shaft member (motor shaft) and the second shaft member (guide shaft)
- FIG. 7 is an exploded view of a second lens holding frame for holding the second lens group
- FIG. 8 is a perspective view of the second lens holding frame for holding the second lens group
- FIG. 9 is a first shaft member (motor shaft) of the second lens holding frame for holding the second lens group
- a perspective view (A) showing the relationship between the biaxial member (guide shaft) and a sectional view (B) showing the abutting state of the piezoelectric element and the first shaft member (motor shaft) are shown in FIG. 10 (A).
- FIG. 14B is a plan view of another embodiment of the second lens holding frame for holding the second lens group, and FIG. 14B is a state in which the piezoelectric element and the first shaft member (motor shaft) are in contact with each other
- FIG. 11 is an exploded view of a first lens holding frame that holds a third lens group
- FIG. 12 is a sectional view of the camera module according to the embodiment.
- the lens which comprises an optical system, and an image pick-up element are shown, (A) is a figure which showed the state in which the lens is in the wide-angle (wide) side, (B) exists in the tele (tele) side.
- Camera module (A) of the piezo element used for the lens is a perspective view
- (B) and (C) are diagrams for explaining the operating principle
- FIG. 14 is a second shaft member in the guide contact portion of the lens holding frame
- (A) is a cross-sectional view
- (B) is a side that also sees the force on the side of the second shaft member (guide shaft).
- FIG. 21 (C) is a perspective view
- FIG. 21 is a view schematically showing an example of a mobile phone in which the camera module of Embodiment 1 is incorporated. In the figure, the same components are given the same numbers.
- FIG. 1 is an external perspective view of the camera module 1 according to the first embodiment when (A) is viewed from the subject-side lens direction, and (B) is an external perspective view also viewing the imaging device-side force.
- 2 is a first lens group on the subject side
- 20 is an image pickup device module equipped with an image pickup device such as a CCD
- 21 is an ASIC for controlling the entire camera module
- 22 is three sides of the camera module 1 1 is a side cover
- 23 is a second side cover for light shielding
- 201 is a digital signal processor (DSP) that processes an image captured by an imaging device such as a CCD
- the camera module of Embodiment 1 is The whole is made in the size of about 10 x 10 x 20 mm.
- DSP digital signal processor
- FIG. 2 is a perspective view of the camera module 1 of the embodiment viewed from the image pickup device side of (B) in FIG. 1
- (A) is a perspective view of the image pickup device module 20 removed
- FIG. 6 is a perspective view showing a camera module body 24 in which an imaging lens, a lens moving mechanism, and various electric components are incorporated, with the first and second side covers 22 and 23 removed.
- the image pickup device module 20 shown in FIG. 2 (A) corresponds to the camera module main body 24 which has been adjusted by incorporating the image pickup lens, lens moving mechanism, and various electric parts shown by 24 in FIG. 2 (B). Cover the first and second side covers 22 and 23 and mount them while focusing on the position with respect to the optical axis as shown in Fig. 2 (A).
- the camera module main body 24 in FIG. 2 (B) has a downward force bar 25 on the image sensor module 20 side, a first lens holding frame 26 for holding a third lens group described later, and a second lens group.
- the first lens holding frame 26 and the second lens holding frame 27 are vertically moved by the second lens holding frame 27 to be held, and the piezoelectric elements incorporated in the first lens holding frame 26 and the second lens holding frame 27.
- the first shaft member (motor shaft) 28 which is not visible in FIG. 2B, is a second shaft member that guides the first lens holding frame 26 and the second lens holding frame 27 while preventing rotation. (Guide shaft) 29, the upper cover 30 for holding the first lens group, the electrical component section rising from the upper cover 30 It is composed of the upright part 31 etc. on which the goods etc. are mounted.
- Reference numeral 251 provided on the lower cover 25 is a restricting member for restricting the moving area of the first lens holding frame 26 and the second lens holding frame 27, the details of which will be described later.
- the image pickup device module 20 covers the image pickup device cover 204 such as a CCD provided on the image pickup device substrate 202 with the image pickup device cover 204 and further cuts infrared rays thereon. And the like are covered with the filter 205.
- FIG. 12 The above is the schematic configuration of the camera module 1 according to the first embodiment, and the force for describing the details of the camera module 1 below.
- the camera module according to the first embodiment will be described using FIG. 12 and FIG.
- the structure of the optical system used in No. 1 and the structure and operation principle of the piezo element will be described.
- FIG. 12 is a view showing lenses and an imaging device constituting an optical system in the camera module 1 of Embodiment 1, and FIG. 12 (A) shows a state in which the lens is at the widest side (B) ) Also shows the state in the most telephoto side.
- This optical system includes a first lens group 2 closest to the object side, a second lens group 3 for changing focal length disposed on the side of the imaging element 5 with respect to the first lens group 2, and an imaging element It is composed of a third lens group 4 for focusing and changing the focal length arranged on the 5 side.
- Each lens group is composed of at least one or more optical lenses, and for the first lens group 2 whose position is fixed, as shown in (A), the second lens group 3 and the third lens group When 4 moves to the image sensor 5 side using a CCD etc., it becomes the wide-angle side, and as shown in (B), the second lens group 3 and the third lens group 4 are the first lens group 2 side.
- the lens unit 3 is moved to the telephoto side, the third lens unit 4 is moved forward and backward at each position of the second lens unit 3 to perform focusing.
- the camera module 1 of Embodiment 1 is a piezo in which the movement of the second lens group 3 and the third lens group 4 is incorporated into the lens holding frames 26 and 27 holding the respective lens groups 3 and 4.
- the second lens unit 3 and the third lens unit 4 can be driven independently, so that focusing can be performed while continuously changing the focal length, and a normal zoom lens can be used. Also, it can be configured as a bifocal lens.
- the piezoelectric element is a force incorporated in the lens holding frame holding the second lens group 3 and the third lens group 4 as described above.
- FIG. 13 is a perspective view of a piezo element used for the camera module 1 according to the first embodiment of the present invention (A), (B) a configuration of the piezo element, and (C) an operation principle.
- Piezoelectric element 10 used here is, as described in detail in Patent Documents 7 to 12, the longitudinal length of piezoelectric ceramic (piezoelectric element) 11 formed in a substantially rectangular plate-like outer shape in FIG. 13 (A).
- the four electrodes 121, 122 and 123, 124 are formed on the first surface 12 formed in the direction and the short direction, and the entire second surface 13 on the opposite side.
- One electrode is provided.
- the electrodes 121, 122, 123, 124 of the first surface 12 are arranged diagonally.
- the electrodes 121, 122, 123, 124 are arranged by wires 125 and 126 arranged in the vicinity of the connection portion of the respective electrodes.
- the electrodes are electrically connected, and the electrodes on the second surface 13 are grounded.
- a spacer 15 as a relatively hard ceramic working part is attached, for example, by a bonding agent, preferably near the center on that side, It engages with an object 16 as an abutting portion such as a shaft member, a wall surface, etc.
- the piezoelectric ceramic (piezo element) 11 is a support with a pair of supports 171 and 172 fixed around the position of the vibration node and an elastic member such as a panel. Deformable support at bodies 173, 174, 175.
- the piezoelectric ceramic (piezo element) 11 When a positive voltage is applied to the electrodes 121 and 124 and a negative voltage is applied to the electrodes 122 and 123 in the piezoelectric ceramic (piezo element) 11 configured as described above, the piezoelectric ceramic (piezo element) 11 is shown in FIG. As shown in exaggeration in (C), the left side of the figure is longer than the right side, and deformation is possible because the vibratory node is supported by the paneled supports 173, 174 and 175. 15 moves to the right of the object 16 engaged. When the voltage is not applied, the piezoelectric ceramic (piezo element) 11 returns to its original state. At this time, for example, applying an asymmetric voltage pulse to the electrode, the fall time is at least four times longer than the rise time ⁇ time.
- the friction between the spacer 15 and the object 16 in the ceramic (piezo element) 11 causes the spacer 15 to return to the starting position while the spacer 15 and the object 16 are engaged at the fall of the pulse. Therefore, the displacement of the rising edge of the pulse causes the spacer 15 and the object 16 to move relative to each other.
- the piezoelectric ceramic (piezo element) 11 deforms in the opposite direction, and therefore, the spacer 15 and the object 16 move in the opposite direction relative to each other.
- the piezoelectric ceramic (piezo element) 11 provides a signal voltage that causes the deformation shown in FIG. 13C to occur continuously between the spacer 15 and the object 16. Since the relative position with the object 16 is displaced by the friction, the response speed is low, but high torque, excellent in controllability and capable of fine positioning, and holding torque (or holding force) when not energized Drive source with advantages such as quietness, compactness and light weight.
- FIG. 4 is a perspective view of the camera module 1 of Embodiment 1 with (A) removing the lower cover 25 on the imaging device side, and (B) a first lens holding frame 26 for holding the third lens group 4.
- FIG. 6C is a perspective view of the second lens holding frame 27 for holding the second lens group 3 removed.
- the camera module body 24 has a first lens holding frame 26 for holding the third lens group 4 and a second lens group 3.
- the second lens holding frame 27 for holding the second lens is inserted through the first shaft member (motor shaft) 28 and the second shaft member (guide shaft) 29 and the lower cover 25 is further covered thereon.
- the lower cover 25 fixes the first shaft member (motor shaft) 28 and the second shaft member (guide shaft) 29 at predetermined positions, and the first lens holding frame 26 and the second lens holding frame 27.
- it extends between the first lens holding portion 26 and the second lens holding portion 27, and the first lens holding frame 26
- a regulated portion 261k (see FIG. 4B and FIG. 11) provided in the first bearing portion 261a and a regulated portion 271k provided in the vicinity of the first bearing portion 271a in the second lens holding frame 27 (see FIG. 4, and a regulating member 251 having regulating portions 25 la and 25 lb provided at the bent portions in contact with the portions (see FIGS.
- the first lens holding frame 26 has a lower cover 25 on the image pickup device side and a restriction portion 25 la on the object side of the object side, and the movement range is restricted.
- the second lens holding frame 27 is located on the image sensor side of the regulating member 251.
- the upper cover 30 restricts the movement range of the subject side with a 25 lb regulator. Therefore, even if the drive source runs away when driving the first lens holding frame 26 and the second lens holding frame 27, the camera module 1 can not move the lens holding frames 26, 27 beyond a certain range. When it is broken! /.
- FIG. 5 is a diagram for explaining the installation state of the electrical components for operating the camera module 1; 32 is a capacitor, 33 is an inductor, and the capacitor 32 and the inductor 33 drive the piezoelectric element Used for boosting.
- Reference numerals 341 and 342 denote position detection members for detecting the position in the optical axis direction, such as the first lens holding frame 26 and the second lens holding frame 27.
- These electric components are provided on the upper cover 30 of the camera module body 24.
- the electric component mounting holes 311 are attached to the mounting holes 312, 313, 314, 315, 316 provided in the upright portion 31.
- FIG. 6 is a view showing a mounting condition of the first shaft member (motor shaft) 28, the second shaft member (guide shaft) 29, and the subject side lens holder 36, and the first shaft member (motor shaft) 28 and the second shaft member (guide shaft) 29 are press-fit into shaft hole portions 301 and 302 provided in the upper cover 30, and the image pickup device side is fixed by the lower cover 25 shown in FIG. 4 (A).
- a sensor tape for detecting the position of the first lens holding frame 26 and the second lens holding frame 27 is inserted into the hole 317 in the upright portion 31 of the camera module body 24, and the first lens group 2 is
- a first lens unit holder 36 held integrally is mounted in a lens fixing hole 303 provided in the upper cover.
- FIGS. 7 to 11 show details of the first lens holding frame 26 and the second lens holding frame 27 in the camera module 1 described above, and as described later, these first lens holding frame 26 and 2 Lens holding frame 27 is configured almost the same way! .
- the second lens holding frame 27 for holding the second lens group 3 in the camera module 1 of Embodiment 1 integrally holds the second lens group 3 as shown in the exploded view of FIG.
- a second lens group holder 37 mounted on the main body 271 of the second lens holding frame, a panel member 272 for biasing the piezoelectric element inserted in the main body 271 of the second lens holding frame, a flexible substrate 273 It is composed of a position detection member 274 for detecting the position of the second lens holding frame 27 and the like.
- 21 (A) and 21 (B) are perspective views of the second lens holding frame 27 at different angles, and FIG. 21 (C) shows the position detection member 274 outside the second lens holding frame 27.
- Perspective view, (D) 11 is an exploded perspective view of the piezoelectric element with a biasing panel member 272 and a flexible substrate 273 removed
- (E) is an exploded perspective view of the second lens group holder 37 removed.
- FIG. 9 (A) shows the second lens holding frame 27 excluding the second lens holding frame main body 271 and the flexible substrate 273, the piezoelectric element 10 and the first shaft member (motor shaft) 28, the second Only the sliding portion 271h provided on the shaft member (guide shaft) 29, the second lens unit holder 37, and the second lens holding frame 27 and in contact with the first shaft member 28, and the panel member 272 for urging the piezoelectric element are shown.
- 9B is a cross-sectional view showing a state in which the actuating portion 15 and the sliding portion 271h of the piezoelectric element 10 are in contact with the first shaft member 28 in the same manner.
- the piezoelectric element urging panel member 272 holds the piezoelectric element 10 held by the second lens holding frame main body 271 in the optical axis direction.
- the first elastic member 272 a biases the actuating portion 15 of the piezo element 10 in the direction in which the actuating portion 15 of the piezo element 10 abuts the first shaft member 28 in the substantially orthogonal direction;
- the elastic member 272b and the second elastic member 272b and the piezo element 10 are in contact with each other so as not to conduct electricity. Insulating member 272c using resin or the like and the insulating member 272c are engaged with the second elastic member 272b.
- the insulating member locking pin 262d is provided to the second elastic member 262b and the insulating member 262c.
- the second elastic member 262b and the insulating member 262c are made by means of acid-sert molding.
- the first elastic member 272a is bent along the extension of the notch 272e provided on one side, and is formed of a piece that biases the piezoelectric element 10 in the direction of the first shaft member 28.
- the second elastic member 272 a and the second elastic member 272 b are formed of a piece that extends the other side in the direction of the piezoelectric element holding portion 271 c and biases the piezoelectric element 10 in the optical axis direction.
- the piezoelectric element urging panel member 272 is a first claw 271 m for fixing the piezoelectric element urging panel member provided on the lens holding frame main body 271 (FIG. 7 (D), FIG.
- the second claw 271 eta for fixing the panel member for biasing the piezoelectric element is engaged with the engagement portion 272f of the first elastic member 272a with respect to the first claw (see B). ), And the engagement portion 272g to the second claw of the piezoelectric element biasing spring member is locked, as shown in FIG. 7 (D).
- the frame is fixed to the frame holding frame main body 271 by insertion.
- the piezo element 10 is configured to be pressed from the top to the bottom by the piezo element panel panel 272.
- this may be configured to be pressed in the reverse direction, or to be able to press both up and down.
- the flexible substrate 273 has the end 273 a fixed to the camera module main body 24, and the portion 273 b expands and contracts along the upper and lower sides of the second lens holding frame 27.
- the U-shaped portion 273c bypasses the portion of the second elastic member 272b in the panel for biasing the piezoelectric element 272, and It is connected to a terminal (not shown) on the side of the actuating part 15 in 10 to supply power.
- the flexible substrate 273 is obtained by covering the wiring member with the insulating film, it is not necessary to use the insulating member 272c when passing between the piezoelectric element 10 and the second elastic member 272b in this way.
- the piezoelectric element position restricting portions 271f and 271g may be provided directly on the second elastic member 272b, and the insulating member 272c may not be used. Also, the flexible substrate 273 may be provided on the opposite side of the piezoelectric element fixing portion 271p, which is the opposite side of the piezoelectric element urging panel member 272 alone.
- the second lens holding frame 27 is shown in FIG. 9 (A) in plan view, and in FIG. 8 (B) in perspective view from the side of the piezoelectric element with the flexible substrate 273 removed.
- a perspective view showing the relationship between the first shaft member 28 (motor shaft) and the second shaft member 29 (guide shaft) is shown in FIG. 9 (B), and the actuating portion 15 and the first shaft member 28 of the piezoelectric element 10 are shown in FIG.
- the first shaft member 271 (motor shaft) is provided on the first bearing 271a provided on the main body 271, and the light of the first bearing 271a.
- the second shaft member 29 (guide shaft) is inserted through the second bearing 271b provided at a position substantially symmetrical with respect to the axis, and as shown in FIG.
- the holder 37 is inserted and fixed, and the actuating portion 15 in contact with the piezoelectric element 10 abuts on the first shaft member 28 (motor shaft), and is driven as described in FIG. 27
- the first bearing 271a and the second bearing 271b are shown as a hole (first bearing 271a) and an open hole (second bearing 271b) in the figure, they do not stick to this shape. It is self-evident.
- the piezo element 10 itself is mounted on the second lens holding frame 27.
- the side opposite to the first shaft member 28 (motor shaft) is opened so that the piezo element 10 can be inserted, and the side parallel to the optical axis is guided by the fixed wall inside the
- the upper and lower surfaces in the direction of the optical axis press the position of the vibration node provided on the piezoelectric element fixing portion 271p so that the piezoelectric element 10 can be deformed as shown in FIG. 13C.
- Piezoelectric element position restricting portions 271d and 271e corresponding to a support shown by 172 correspond to a support with a panel shown by 173 and 174 in FIG.
- the panel is a second elastic member 272b and It is accommodated in the piezoelectric element holding portion 271c (see FIG. 8B) provided with the piezoelectric element position regulating portions 271f and 271g, and a direction substantially orthogonal to the optical axis direction by the first elastic member 272a.
- the actuating portion 15 of the piezoelectric element 10 abuts on the first shaft member 28, and the second elastic member 272b It is held to urge the direction, Ru.
- the first bearing portion 271a is provided on the first shaft member (motor shaft) 28 side of the piezoelectric element holding portion 271c, and the first shaft member 28 is inserted.
- the first shaft member 28 is formed on the side opposite to the side where the actuating portion 15 of the piezoelectric element 10 abuts, using a fluorine-containing polycarbonate or PPS, etc., using a low-friction resin material or the like.
- a sliding portion 271h having a first sliding portion 271ha which is a V-shaped portion and a second sliding portion 271hb which is a second V-shaped portion is supported by a shaft 271hc and provided. ing.
- the first shaft member (motor shaft) 28 with which the actuating portion 15 of the piezoelectric element 10 abuts has a coefficient of friction of the abutted side of the sliding portion 271h on the opposite side from the side with which the actuating portion 15 abuts in this manner.
- the surface on the side where the actuating portion 15 abuts is treated rougher than the side on which the sliding portion 271h abuts, or the surface on the side where the sliding portion 271h abuts is lubricated. By doing this, the movement of the piezoelectric element 10 may be ensured and the sliding of the sliding portion 271 h may be improved.
- the first sliding portion 271ha and the second sliding portion 271hb in the sliding portion 271h are disposed apart from the actuating portion 15 in the piezoelectric element 10 by a predetermined distance in the axial direction of the first shaft member 28. Also, the actuating portion 15 is positioned approximately halfway between the first sliding portion 271ha and the second sliding portion 271hb, and the actuating portion 15 of the piezo element 10 is approximately the thickness of the second lens holding frame 27.
- a piezo element holding portion 271 c is formed to be positioned in the middle.
- the sliding portion 271h is the same as the sliding portion 271h in the piezoelectric element biasing panel member 272 described above.
- the first shaft member 28 is pressurized and held by a reaction in which the actuating portion 15 of the piezoelectric element 10 is urged in the direction in which the actuating portion 15 of the piezoelectric element 10 abuts on the first elastic member 272a.
- (Motor shaft) 28 and the V-shaped sliding portion 271h are in line contact, so that the sliding portion 27 lh is formed using a material with low friction,
- the second lens holding frame 27 can be moved up and down smoothly, and the piezoelectric element holding portion 271 c and the second lens holding frame 27 are held without being inclined with respect to the first shaft member 28.
- the second lens holding frame 27 can be moved up and down because contact with the first shaft member 28 can be performed more reliably than stagnation or deviation.
- the second lens holding frame 27 is provided parallel to the optical axis at a position substantially symmetrical to the optical axis of the first bearing 271 a.
- a second bearing 271b through which the second shaft member (guide shaft) 29 is inserted is provided using a low-friction resin material or the like using fluorine-containing polycarbonate or PPS, etc.
- the second lens holding frame 27 is prevented from rotating by the shaft 29, and the second lens holding frame 27 is prevented from stagnation and can be moved up and down smoothly.
- the first bearing 272a and the second bearing 271b as shown in FIG.
- the sliding portion 271h of the first bearing 272a is substantially V-shaped
- the second bearing 271b is It has a shape corresponding to the outer shape of the biaxial member (guide shaft) 29, but, for example, a sliding portion 272h of the first bearing portion 272a and a roller having the second bearing portion 271b substantially V-shaped are used.
- the cylindrical flat rollers 40 and 41 are accommodated in the bearing portion 42 so as to be V-shaped with respect to the first shaft member 28 and the second shaft member 29. You can configure it!
- FIG. 14 (A) is a plan view of the bearing 42
- FIGS. 14 (B) and 14 (C) are a side view (C) and a perspective view (D) of the bearing 42.
- the flat rollers 40 and 41 are V-shaped relative to the shaft members 28 and 29 by the U-shaped bearing 44 provided inside the V-shaped notch 43 provided in the bearing portion 42. Is held by By forming the bearing portion 42 in this manner, manufacturing errors occur in the first lens holding frame 26 and the second lens holding frame 27, and the second flat roller 40 and the second flat roller 41 are moved by the thrust rattle.
- Fig. 10 shows an example configured to collect or attach the debris and to prevent it from scattering.
- FIG. 10 (A) is a plan view of the second lens holding frame 27 holding the second lens group 3, and FIG. 10 (B) shows the piezoelectric element 10 and the first shaft member (motor shaft).
- FIG. 28 is a cross-sectional view showing a contact state of the first and second dust collecting members 271 r and an adhesive member 271 s provided in the first bearing portion 271 a.
- 271q is a sliding portion which is constituted by a first sliding portion 271qa and a second sliding portion 271qb, and is in contact with the first shaft member (motor shaft) 28 inserted in the first bearing portion 271a.
- the structure is different from the first bearing 271a shown in FIG. 8 and FIG.
- the sliding part 271q makes up a part of the first bearing 271a. I am trying to reduce the score.
- 271 qc is a sliding portion base connecting the first sliding portion 271 qa and the second sliding portion 271 qb
- 271 r is an operating portion 15 of the piezo element 10 as a first shaft member (motor shaft) 28
- a dust collecting member for collecting the scraping force generated by the contact, 271s shown by a dotted line is also an adhesive member.
- the actuating portion 15 of the piezoelectric element 10 in the first bearing portion 271a is in contact with the first shaft member (motor shaft) 28.
- the first sliding portion 271 qa and the second sliding portion 271 qb are in contact with the first shaft member (motor shaft) 28 at a portion where the contact part of the piezo element holding portion 271 c is extended.
- the adhesive member 271 s is provided on the opposite side, and the adhesive member 271 s is a sliding portion base 271 qc connecting the first sliding portion 271 qa and the second sliding portion 271 qb, and the lens side and the lens side in the piezo element holding portion 271 c.
- the sliding portion base 271 qc in which the adhesive member 271 s is disposed is provided at a position substantially corresponding to the position in the optical axis direction of the piezoelectric element 10 disposed on the opposite side of the first shaft member 28.
- the working portion of the piezoelectric element 10 in the first shaft member (motor shaft) 28 is important.
- the surface of the portion where 15 contacts is rougher than the non-contacting surface, or the first shaft member (motor shaft) 28 and the first sliding portion 271 qa and the second sliding portion 271 qb
- the coefficient of friction of the portion where the actuator abuts is treated lower than the side where the actuating portion 15 abuts.
- first sliding portion 271qa and the second sliding portion 271qb of the first shaft member (motor shaft) 28 slide
- the moving surface is lubricated and the actuating portion 15 side of the piezo element 10 is not lubricated, for example, so that the piezo element 10 can be more effectively driven, and the first sliding portion 271 qa It is effective to allow the second sliding portion 271 qb to slide more smoothly.
- FIG. 11 is an exploded perspective view of the first lens holding frame 26 holding the third lens group, and the first lens holding frame 26 holds the third lens group 4 integrally, and the first lens
- the third lens group holder 38 mounted on the main body 261 of the holding frame, the panel member 262 for biasing the piezo element held on the main body 261 of the first lens holding frame 26, the flexible substrate 263, the first lens holding A position detection member 264 or the like for detecting the position of the frame 26 is configured, and these constituent members are substantially the same as the constituent members of the second lens holding frame 27 shown in FIG.
- the piezoelectric element biasing panel member 262 is the same as the piezoelectric element biasing panel member 272 in the second lens holding frame 27, the piezoelectric element 10 held by the main body 261 of the first lens holding frame is A first elastic member 262a urging the actuating portion 15 of the piezoelectric element 10 in the direction of coming into contact with the first shaft member 28 in a direction substantially orthogonal to the optical axis direction, and the piezoelectric element 10 in the optical axis direction
- the insulating member 262c and the insulating member 262c are made of resin or the like so that the second elastic member 272b and the second elastic member 262b, which are biased, and the piezoelectric element 10 do not contact each other and conduct electricity.
- the fixing of the insulating member 262c to the second elastic member 262b is made up of the insulating member locking pin 262d and the like for locking to the elastic member 262b, and the insulating member locking pin 262d is insulated with the second elastic member 262b and the second elastic member 262b. Force to pierce through a hole provided in the member 262c and press-clamp them. These are separated from the second elastic member 262b.
- the member 262c created in outsert molding, the second lens Fixation of the piezoelectric element biasing panel member 262 to the holding frame main body 261 is performed by the insertion method in the same manner as described in the second lens holding frame 27.
- the other components are also completely the same as the second lens holding frame 27, and the flexible substrate 263 has the end 263 a fixed to the camera module main body 24 and the flexible substrate of the second lens holding frame 27.
- the portion 263b is the reverse of the portion 263 and the portion 263b is on the lower side, and can be expanded and contracted along with the upper and lower portions of the first lens holding frame 26, as shown in the cross-sectional view of FIG.
- the U-shaped portion bypasses the portion of the second elastic member 262 b in the piezoelectric element panel panel 262 and is connected to a terminal (not shown) on the side of the actuating portion 15 of the piezoelectric element 10. Supply power.
- a first bearing portion 261a and a second bearing portion 261b are provided in the main body 261 of the first lens holding frame, and a first shaft member 28 (motor shaft) and a second shaft member 29 (guide shaft) And the holder 38 of the third lens group 4 is inserted and fixed. Then, the actuating portion 15 of the piezoelectric element 10 is brought into contact with the first shaft member 28 (motor shaft), and the second lens holding frame 27 is moved up and down as described in FIG.
- the configuration of the element holding portion 261c, the first bearing portion 261a, the second bearing portion 26 lb and the like is exactly the same as that of the second lens holding frame 27 described above.
- the camera module 1 according to Embodiment 1 configured in this way has each of the piezoelectric elements 10 provided on the first lens holding frame 26 and the second lens holding frame 27 by the control circuit (not shown).
- the control circuit not shown.
- the spacer 15 vibrates to excite reciprocating motion, and the first lens holding frame 26 holding the piezoelectric element 10, the second lens holding frame 27 Can move upward or downward to change the focal length including zooming and to focus.
- the camera module 1 is configured by inserting the first lens holding frame 26 and the second lens holding frame 27 into the common first shaft member (motor shaft) 28 and the second shaft portion (guide shaft) 29.
- the force camera module 1 can be configured to be small and lightweight, and autofocus (AF) and focal length change can be performed simply by applying a signal current to the piezo element 10.
- AF autofocus
- the piezo element 10 since it has advantages such as low speed but high torque and response ⁇ excellent controllability, small positioning possible ⁇ small size ⁇ lightweight etc, it is small and lightweight, focusing distance It is possible to provide a camera module that can perform separation change and focusing in a short time.
- FIG. 15 is a schematic cross-sectional view of a camera module of a drive portion in Embodiment 2.
- FIG. 16 is a perspective view of the camera module of FIG. Fig. 17 is an explanatory view of the operation of the camera module according to the present embodiment, in which the lens is at the most tele side (a) and at the most wide end (b);
- FIG. 19 is a view showing the abutting state of the sliding member and the drive shaft, and is a side sectional view (a), a flat sectional view (b), a main part sectional view (c), and FIG.
- FIG. 20 shows the entire camera module of this embodiment.
- Constitution FIG. 21 is a view schematically showing an example of an information terminal in which the power camera module of the second embodiment is incorporated.
- FIG. 21 the same components are given the same numbers.
- the camera module 1 of Embodiment 2 is connected to a lens holding frame 299 for holding an imaging lens, a drive shaft 99 for reciprocating or telescopic movement in the axial direction, and a lens holding frame 299.
- Sliding member 59 which frictionally engages the drive shaft at least in part, an electrostrictive element 89 connected to the drive shaft 99 for positioning the lens holding frame 299, and the drive shaft 99 at the other end
- a stable weight member 39 connected to the strain element, a fixed frame 49 connected to the stable weight member 39 for restricting the movement of the drive shaft 99, and a spring member 79 biasing the slide member 59 against the drive shaft 99;
- a spring receiver 69 for supporting the spring member 79.
- the linear actuator that drives and controls the lens holding frame 2 is configured in the order of the stable weight member 39, the electrostrictive element 89, and the drive shaft 99. Since the stable weight member 39 absorbs the repulsion by vibration, the weight does not increase, and the flexibility is high to minimize the influence on the camera module components and the influence on the camera module components Low in number) is fixed by the joining member.
- Electrostrictive element 89 is a laminated type and applies a voltage. An element that is driven to extend and contract in a direction parallel to the optical axis, and is represented by a piezo element.
- the drive shaft 99 is joined to the electrostrictive element 89 by pressing or fixing with a bonding agent or the like, and interlocks with the electrostrictive element 89 to extend and contract in the direction parallel to the optical axis.
- the drive shaft 99 is sandwiched between the sliding surface 49 a of the fixed frame 49 and the sliding surface 59 a of the sliding member 59 connected to the lens frame holding portion 2, and the sliding member 59 and the spring receiver 69
- a spring member 79 for pressing the sliding surface is disposed between the two.
- the spring member it is possible to use an elastic member such as a leaf spring, a plastic spring or a viscous polymer material which does not exceed the yield point other than the spring. That is, the sliding member 59 is pressed against and supported by the drive shaft 99 by the spring member 79.
- the load of the spring member 79 is sufficiently smaller than the friction between the drive shaft 99 and the sliding member 59, it is sufficient to stabilize the optical axis of the lens.
- the drive mechanism of the lens holding frame 2 in Embodiment 2 is compact and high-precision by utilizing the abrupt volume change of the electrostrictive element 89 and the inertia and friction force of the drive shaft 99 which is a moving body. It makes it possible to drive and precisely position the lens.
- the drive principle of lens movement operation by the electrostrictive element is as follows.
- the electrostrictive element 89 When the electrostrictive element 89 is rapidly extended, the drive shaft 99 connected to the electrostrictive element 89 simultaneously moves rapidly, and the sliding surface connected to the peripheral surface of the drive shaft 99 and the lens holding frame 2
- the sliding surface 59a of the member 59 slides, and the lens holding frame 2 itself remains substantially at that position, and only the drive shaft 99 moves.
- the electrostrictive element 89 is slowly compressed, the sliding member 59 is moved along with the lens holding frame 2 by surface friction between the circumferential surface of the drive shaft 99 and the sliding surface 59a of the sliding member 59 Move to Figure 15).
- the lens holding frame 2 is displaced in the Z axis + direction by repeating this expansion and contraction operation.
- FIG. 17 (a) shows a state in which the lens holding frame 2 is displaced most in the Z axis ⁇ direction
- FIG. 20 (B) shows a state in which the lens holding frame 2 is displaced most in the Z axis + direction.
- the displacement width of the lens holding frame 2 can be freely set by the length of the drive shaft 99. Further, within the range of the displacement width set based on the drive shaft 99, the lens holding frame 2 can be finely moved by the control of the linear actuator.
- the electrostrictive element provides a signal voltage that causes continuous deformation, and thereby the relative position is determined by surface friction between the drive shaft 99 and the sliding member 59 of the lens holding frame 2. Since displacement is possible, minute positioning with excellent responsiveness and controllability is possible, and it has advantages such as holding torque (or holding power) when not energized, excellent in quietness, compact and lightweight. Drive source.
- FIG. 18 is a view showing the sliding member and the drive shaft in contact with each other.
- the sliding member 59 is a side facing the drive shaft 99.
- the clearance 119 is formed in a semicircular ring shape.
- a dust collecting member 109 having a fan-shaped cross section is provided in the gaps located at the top and bottom, as shown in the plan sectional view of FIG. 18 (b).
- the sliding load of the dust collection member 109 may be a load which is sufficiently smaller than the friction of the sliding member 59 and which is sufficient for collecting scraps.
- an adhesive member 119 is provided in the gap located between the sliding members 59.
- the surfaces sliding with the drive shaft 99 are the two sliding surfaces 59a excluding the gap. Therefore, the sliding member 59 side is disposed in the order of the dust collecting member 109, the sliding surface 59a, the adhesive member 119, the sliding portion 59a, and the dust collecting member 109 in the axial direction of the drive shaft.
- the axial thickness should be approximately equal. As described above, by making the slide member 59 wider in cross section with respect to the slide surface, scattering of dust and the like can be suppressed.
- the inner circumferential surface corresponding to the substantially semicircular inner arc of the dust collecting member 109 and the sliding portion 49a of the fixed frame 49 become the sliding surfaces with the drive shaft.
- the friction with the fixed member 49 be small to reduce the friction with the fixed frame 49 in order to improve the slidability and reduce the IJ resistance.
- the coefficient of friction of the sliding surface 49a on the fixed frame 49 side be made lower than that of the sliding surface 59a on the sliding member 59 side.
- the drive shaft 99 may be formed of a low-friction resin material using fluorine-containing polycarbonate or PPS, or the sliding surface 49a may be coated. Furthermore, the surface of the drive shaft 99 that slides on the sliding surface 49a of the fixed frame 49 is lubricated, and the surface on the sliding surface of the sliding member 59 that slides on the sliding surface 59a is lubricated. It is also preferable to omit it.
- the dust collecting members 109 are provided at two places of the uppermost portion and the lowermost portion, and the sliding member 59
- the structure in which two parts are frictionally engaged is provided, whereby the sliding parts are dispersed, generation of scraps can be suppressed, and the optical axis of the lens can be made more stable.
- the adhesive member 119 is disposed between the two dust collecting members 109, the adhesive member 119 can be disposed without separately providing the disposition space of the adhesive member 119.
- the camera module according to the second embodiment is not limited to the above configuration, and any configuration may be used as long as the dust collection member 109 is disposed in the vicinity of the sliding member 59. Even if deposits such as shavings generated by the sliding between the slider and the sliding member 59 or corrosive substances generated by corrosive gas or acid gas are generated, they are trapped by the dust collecting member 109 disposed in the vicinity of the sliding surface. Can prevent the lens from being contaminated as dust, and can prevent ghosts and flares, and in the long run, the friction between the drive shaft and the sliding member can be stabilized and appropriate. Maintain and prevent malfunction of the linear actuator. It is possible.
- a camera module having an auto focus (AF) function and a zoom function can be configured to be compact and lightweight.
- the vicinity of the sliding member includes a position facing the electrostrictive element 89 which is good at any position on the side of the sliding member 59 facing the drive shaft 99.
- the dust collecting member 109 may be disposed on the side of the sliding member 59 facing the drive shaft 99, and the dust collecting member 109 may be disposed in the space, or the sliding member 59 may be slid. It may be installed on the end side in the sliding direction of the moving member 59 and on the side that contacts the drive shaft 99 or the electrostrictive element 89.
- a gap is provided in a direction perpendicular to the sliding direction on the side where the sliding member 59 faces the drive shaft 99, and the dust collection member 109 is disposed in the gap so as to abut the drive shaft 99. Space saving and downsizing can be achieved. Further, at least two clearances of the sliding member 59 are provided on both end sides in the axial direction of the drive shaft 99, and the dust collecting members 109 are respectively disposed in the clearances of the two places. By disposing the dust collection member on the upper and lower end side of the drive shaft where scraps are easily generated as described above, it is possible to supplement the scraps before scattering.
- the dust collecting member 109 is disposed at the electrostrictive element side end of the sliding member 59 on the side facing the circumferential surface of the drive shaft 99 or the electrostrictive element 89.
- the dust collecting member 109 is arranged at the electrostrictive element side end in this manner, the generated shavings can be collected effectively.
- the dust collecting member 109 may be provided with a gap at both ends of the sliding member 59 and may be provided in the gap, or may be attached to both ends of the sliding member 59.
- the sliding member 59 and the dust collection member 109 in contact with the drive shaft 99 are formed into a substantially semicircular ring having an arc-shaped cross section, the sliding member 59 is biased in one direction only.
- the sliding member can be supported, and the contactability with the drive shaft 99 can be maintained high, and by making the dust collecting member 109 arc-shaped in cross section in the same manner as the sliding member 59, the sliding member The scraps generated on the sliding surfaces of the drive shaft 99 and the drive shaft 99 can be reliably collected, and the dust collection performance is improved.
- any material may be selected as long as it is capable of collecting and holding scraps while being in contact with the drive shaft 99.
- a foam or fibrous body such as a sponge-like member
- any structure may be used as long as it has a large number of microvoids in the member and the microvoids capture and hold scraps.
- the material may be a foamable polymer material such as moquette, sponge or urethane.
- two or more clearances of the sliding member 59 are provided in the axial direction of the drive shaft 99, and the adhesion member 119 is disposed at at least one position between the clearances.
- the scraps that can not be collected can be adhesively collected by the adhesive member 119, and the dust collection performance is further improved.
- the adhesive member 119 a member that scrapes off without contacting the drive shaft and that attaches floating dust to the surface is an acrylic-based, rubber-based material that is less likely to change over time.
- silicon-based materials useful for heat resistance use may be used, but acrylic adhesive materials are suitable because they are inexpensive, chemically stable, and do not age-deteriorate in structure.
- the drive control means consisting of the electrostrictive element 89 and the drive shaft 99 in the second embodiment is of a friction drive type, so the slide portion of the drive shaft surface and the slide member 59 and the slide portion of the fixed frame 49
- the contact with 49a causes scraping, which scrapes the lens as dust and causes ghosting and flares, and deposits such as corrosive substances generated by corrosive gas and acid gas.
- the dust collecting member 109 is provided to collect the attached matter and to prevent it from scattering.
- the dust collection member 109 is disposed in a space provided at two positions in the axial direction above and below the sliding member 59. Furthermore, an adhesive member is disposed on a space 119 provided at one place near the axial center.
- the dust collection member 1 09 and the adhesion member in the vicinity where the scum is generated, the scum IJ dust is collected to the dust collection member 109 and adheres to the adhesion member, and scattering is effective. Can be prevented.
- the sliding parts 49a of the drive shaft 99 and the fixed frame 49 make the surface of the contact point smoother, and make the surface of the contact between the drive shaft 99 and the sliding surface 59a of the sliding member 59 rougher By processing, it is preferable not to generate shavings on the side where the dust collection member 109 and the adhesive member are not provided.
- Embodiment 2 of the camera module shown in FIGS. 15 to 18 is a configuration for driving a single lens holding unit 2, and such a camera module may be configured as a zoom lens, for example.
- a camera module that can perform zooming and focusing simultaneously can be configured by preparing each of the plurality of lenses corresponding to each lens and driving the lens to a predetermined position according to the focal length.
- an imaging element such as a CCD is prepared at the focal position of the lens as the camera module of Embodiment 2 as a single-focus camera module, information of, for example, a mobile phone with a camera function provided with an autofocus function. It is possible to apply to terminals, surveillance cameras, etc.
- FIG. 19 and FIG. 20 show Embodiment 2 in this case.
- the camera module shown in FIGS. 19 and 20 is a structural explanatory view of an example in which the camera module described above is combined with an imaging device such as a CCD to form a single focus independent camera module.
- a) is a left side view
- (b) is a top view
- (c) is a right side view
- (d) is a perspective view of lower left force
- (e) is a perspective view from upper right
- (f) is (b)
- (A) is a cross-sectional view taken along line A-A
- (g) is a cross-sectional view taken along line B-B in (b)
- (h) is a cross-sectional view taken along line C-C in (b).
- FIG. 20 (A) shows a camera module 1 adjusted by incorporating the above-described imaging lens, lens moving mechanism, and various electric parts
- FIG. 20 (B) shows this camera module 1. It is the figure which covered the cover 149.
- reference numeral 139 denotes a substrate on which an imaging element such as a CCD is mounted
- 149 denotes a cover of the camera module
- 159 denotes an exposed portion of the lens
- 169 denotes electrical connection with portable equipment such as an information terminal on which the camera module is mounted.
- the camera modules shown in FIGS. 19 and 20 are the same as the cameras described in FIGS.
- the shaft 219 of the second embodiment is similarly fixed to the base 229 as shown in FIG. 19 (h) and also serves as a guide for the stable weight member 39.
- an imaging device 209 such as a CCD and a filter 199 are accommodated inside the base 229, and the whole is covered with a cover as shown in FIG. It is a camera module.
- the lens holding frame 299 can be driven by the electrostrictive element 89 as described in FIGS. 15 to 18, and the Hall element 179 and the magnet 189 can drive the lens holding frame 299. Since it is possible to accurately detect the current position of the lens holding frame 29, it is possible to provide a camera module which is very compact and can perform focusing quickly and accurately although it is single focus.
- FIG. 21 is an example of an information terminal equipped with the camera module 1 described above.
- the information terminal shown in FIG. 21 shows the case of a portable telephone 50 as an example.
- 51 is an operation unit (operation member)
- 52 is a display (display member)
- FIG. 21 is a plane shown in a state (opened state) where these operation unit (operation member) 51 and display (display member) 52 can be seen.
- a first case 53 on which the operation unit 51 is mounted and a second case 54 on which the display 52 is mounted are connected by a hinge mechanism 55, and the first and the second The second case portions 53 and 54 are rotatable around the hinge mechanism 55.
- the first and second case parts 53 and 54 constitute a case body.
- the camera module 1 described above is incorporated, and when the predetermined button of the operation unit 51 is operated, the camera module 1 is used. Imaging is performed, and the imaged image is displayed on the display 52, for example.
- the upper side shown in FIG. 15 is directed to the outside of the second case portion 54. That is, an opening for exposing the first lens group 2 held by the third lens holding unit 20 of the camera module 1 is formed in the second case 54, and the force is not shown.
- a battery, a communication unit, and the like are accommodated in the portion 53, and the thickness dimension of the second case portion 54 is regulated to substantially the height of the camera module 1.
- the camera module incorporating the auto focus (AF) function and the zoom function can be configured to be compact and lightweight, making it ideal as a camera module in various types of compact mobile terminals and information terminals.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05793682A EP1811325B1 (en) | 2004-10-20 | 2005-10-12 | Camera module, and portable terminal and information terminal with the same |
US11/576,673 US20070229702A1 (en) | 2004-10-20 | 2005-10-12 | Camera Module, and Portable Terminal and Information Terminal with the Same |
KR1020077009118A KR101159385B1 (ko) | 2004-10-20 | 2005-10-12 | 카메라 모듈, 및 이것을 구비한 휴대 단말 및 정보 단말 |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004305275A JP3800612B2 (ja) | 2004-10-20 | 2004-10-20 | カメラモジュールとこのカメラモジュールを備えた携帯端末 |
JP2004-305276 | 2004-10-20 | ||
JP2004305276A JP3800613B2 (ja) | 2004-10-20 | 2004-10-20 | カメラモジュールとこのカメラモジュールを備えた携帯端末 |
JP2004-305275 | 2004-10-20 | ||
JP2005231858A JP3791847B1 (ja) | 2005-08-10 | 2005-08-10 | カメラモジュールおよび該カメラモジュールを搭載した情報端末 |
JP2005-231857 | 2005-08-10 | ||
JP2005-231858 | 2005-08-10 | ||
JP2005231857A JP3791846B1 (ja) | 2005-08-10 | 2005-08-10 | カメラモジュールおよび該カメラモジュールを搭載した情報端末 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006043456A1 true WO2006043456A1 (ja) | 2006-04-27 |
Family
ID=36202872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018795 WO2006043456A1 (ja) | 2004-10-20 | 2005-10-12 | カメラモジュール及びこれを備えた携帯端末並びに情報端末 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070229702A1 (ja) |
EP (1) | EP1811325B1 (ja) |
KR (1) | KR101159385B1 (ja) |
WO (1) | WO2006043456A1 (ja) |
Cited By (3)
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EP1918750A1 (en) * | 2006-10-30 | 2008-05-07 | Mitsumi Electric Co., Ltd. | Camera Module |
JP2009065777A (ja) * | 2007-09-06 | 2009-03-26 | Fujitsu Ltd | 圧電素子を用いた駆動装置及びその駆動方法 |
JP2020144270A (ja) * | 2019-03-07 | 2020-09-10 | キヤノン株式会社 | 光学機器 |
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JP4237790B2 (ja) * | 2006-08-24 | 2009-03-11 | シャープ株式会社 | レンズユニットおよび撮像装置 |
JP4310348B2 (ja) * | 2007-04-04 | 2009-08-05 | シャープ株式会社 | 固体撮像装置およびそれを備えた電子機器 |
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CN101308238A (zh) * | 2007-05-15 | 2008-11-19 | 佛山普立华科技有限公司 | 相机模组 |
JP2009069588A (ja) * | 2007-09-14 | 2009-04-02 | Konica Minolta Opto Inc | 光学ユニットおよび撮像装置 |
JP4991497B2 (ja) * | 2007-11-28 | 2012-08-01 | 三星電子株式会社 | 像ぶれ補正装置 |
KR101257456B1 (ko) * | 2008-04-22 | 2013-04-23 | 삼성테크윈 주식회사 | 렌즈 구동 유닛 및 이를 구비하는 이미지 촬영 모듈 |
KR100927420B1 (ko) | 2008-04-24 | 2009-11-19 | 삼성전기주식회사 | 렌즈 구동 모듈 |
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US11528399B2 (en) * | 2020-03-06 | 2022-12-13 | Apple Inc. | Housing structure for handheld electronic device |
KR20240029113A (ko) * | 2020-11-24 | 2024-03-05 | 미쓰미덴기가부시기가이샤 | 광학 소자 구동 장치, 카메라 모듈, 및 카메라 탑재 장치 |
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- 2005-10-12 EP EP05793682A patent/EP1811325B1/en not_active Expired - Fee Related
- 2005-10-12 KR KR1020077009118A patent/KR101159385B1/ko not_active IP Right Cessation
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JP2020144270A (ja) * | 2019-03-07 | 2020-09-10 | キヤノン株式会社 | 光学機器 |
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Also Published As
Publication number | Publication date |
---|---|
US20070229702A1 (en) | 2007-10-04 |
EP1811325A4 (en) | 2010-11-10 |
EP1811325B1 (en) | 2011-10-12 |
EP1811325A1 (en) | 2007-07-25 |
KR20070083753A (ko) | 2007-08-24 |
KR101159385B1 (ko) | 2012-07-03 |
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