US20100171869A1 - Light amount adjusting device and image capture apparatus - Google Patents
Light amount adjusting device and image capture apparatus Download PDFInfo
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- US20100171869A1 US20100171869A1 US12/728,395 US72839510A US2010171869A1 US 20100171869 A1 US20100171869 A1 US 20100171869A1 US 72839510 A US72839510 A US 72839510A US 2010171869 A1 US2010171869 A1 US 2010171869A1
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- moving frame
- correcting
- correcting moving
- movable device
- intermediate movable
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- 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
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
Definitions
- the member in the above-mentioned light amount adjusting device and image capture apparatus, it is possible to arrange the member to be arranged on the side opposite to the second separator with having the base body therebetween, inside the throughhole of the base body.
- FIG. 2 is a perspective view of the image capture apparatus with the lens barrel projected from the apparatus body;
- FIG. 19 is an enlarged sectional view showing a state in which the first mold and the second mold are separated from each other to form the first correcting moving frame;
- front/rear/up/down/left/right directions denote such directions as viewed from a photographer during image taking with a still camera. Accordingly, an object side is referred to as being the front, whereas a photographer side is referred to as being the rear.
- the apparatus body 2 is formed such that various necessary components are arranged outside and inside a horizontally elongated, flat housing 4 (see FIGS. 1 to 3 ), for example.
- the focus lens group 30 is mounted onto the lens mounting portion 31 .
- a spring hooking strip 32 a is provided at a position closer to a lower end of the arm portion 32 .
- a C-shaped supported strip 32 b is provided on the arm portion 32 .
- An imager unit 35 is mounted onto the fixed member 16 from the rear (see FIG. 4 ).
- the imager unit 35 has a holding frame member 36 , and an imager device 37 , e.g., a CCD (Charge Coupled Device), held by the holding frame member 36 .
- the holding frame member 36 is mounted onto the fixed member 16
- the imager device 37 is arranged in the arrangement hole 20 a of the fixed member 16 (see FIG. 6 ).
- Photo interrupters 38 are mounted at predetermined positions of the fixed member 16 (see FIG. 4 ). The photo interrupters 38 perform position detection of the focus moving unit 28 in the optical-axis direction.
- the fixed ring 17 is mounted onto the fixed member 16 from the front (see FIGS. 4 and 5 ).
- the fixed ring has an approximately cylinder-shaped cylindrical base portion 39 , a unit pressing portion 40 projecting from a lower end portion on a right end side of the cylindrical base portion 39 , and a case mounting portion 41 projecting from a lower end portion on a left end side of the cylindrical base portion 39 .
- an axially elongated transmission gear 42 is rotatably supported between the front surface portion 41 a of the case mounting portion 41 and the fixed member 16 (see FIG. 10 ).
- the transmission gear 42 is arranged in the gear arrangement hole of the cylindrical base portion 39 .
- a mounting projection 45 a projecting rearward from a rear surface thereof is provided.
- a rearward opened, indented sensor mounting portion 45 b is also provided.
- a sensor arrangement hole 45 c passing through in the front-rear direction is further formed in the sensor mounting portion 45 b.
- the mounting flat spring 50 is mounted onto the case body 43 by being elastically deformed such that the sensor pressing portions 52 , 53 are widened in directions moving away from each other, and then elastically returned. With the mounting flat spring 50 mounted on the case body 43 , the portions other than the pressed portions 55 , 57 are brought into surface contact with external surfaces of the case body 43 . At this instance, the substrates 49 a, 49 a of the sensors 49 , 49 arranged in the sensor mounting portions 44 b, 45 b of the case body 43 are fixed while pressed by protrusions 52 a, 53 a of the mounting flat spring 50 from outside, respectively, thereby preventing the sensors 49 , 49 from dropping off the case body 43 .
- maintenance work such as the exchanging of the sensors 49 , 49 , can be readily performed by removing the mounting flat spring 50 from the case body 43 , thereby improving maintainability.
- the pressing protrusions 52 a, 53 a protruding toward the sensors 49 , 49 are provided on the sensor pressing portions 52 , 53 of the mounting flat spring 50 , respectively, thereby facilitating the holding of the sensors 49 , 49 with respect to the case body 43 .
- the cam cylinder 18 is movably supported by the fixed ring 17 , by the protrusions 18 b, 18 b, 18 b being slidably engaged with the linear inclined guiding grooves 39 a, 39 a, 39 a or the rotation guiding groove 39 b.
- the cam cylinder 18 moves in the front-rear direction while rotating when the protrusions 18 b, 18 b, 18 b slide along the linear inclined guiding grooves 39 a, 39 a, 39 a, whereas the cam cylinder 18 rotates without moving in the front-rear direction when the protrusions 18 b, 18 b, 18 b slide along the rotation guiding groove 39 b.
- the guide projections 63 , 63 , 63 have frontward and outward opened sliding grooves 63 a, 63 a, 63 a formed therein, respectively.
- the linear guide 61 is supported by the fixed ring 17 so as to be movable in the front-rear direction, by the projections 62 a, 62 a, 62 a being slidably engaged with the linear guiding grooves 39 c, 39 c, 39 c, respectively.
- the linear guide 61 is rotatable relative to the cam cylinder 18 by the supported projecting strips 62 b, 62 b, 62 b being slidably engaged with the support groove 18 c of the cam cylinder 18 .
- bearing portions 69 c, 69 c are provided below the light-passing opening 69 a, and a bearing portion 69 d is provided above the light-passing opening 69 a.
- the bearing portions 69 c, 69 c are spaced apart in the left-right direction.
- the second mold 300 is provided with frontward projecting throughhole forming projections 301 , 301 , . . . , which are spaced apart in the up-down direction.
- the light amount adjusting device 67 of the second movable unit 65 is mounted on a rear surface side of the base frame 68 (see FIGS. 20 and 21 ).
- the mounting grooves 89 d, 89 d, 89 d can be formed with high accuracy using a simple mold configuration.
- the attachment recess 90 has a large throughhole 90 a formed therein (see FIG. 25 ).
- the attachment recess 90 is provided with a frontward projecting filter rotating center shaft 90 b, and frontward projecting shutter rotating center shafts 90 c, 90 d at positions around the throughhole 90 a.
- the attachment recess 90 has arcuate throughholes 90 e, 90 f formed therein which pass through in the front-rear direction.
- the first sliding projections 94 b, 94 b are formed into arcs on circles having the shaft insertion hole 94 f as their center, whereas the second sliding projections 94 c, 94 c are formed into arcs on circles having the shaft insertion hole 94 e as their center.
- the first separator 92 is sheet-shaped while made from, e.g., a resin material such as polyethylene terephthalate, or a metallic material, and has, at a midsection thereof, a hole 92 a which has approximately the same size as the light-passing hole 94 a of the cover plate 91 .
- shaft insertion holes 92 b, 92 c, 92 d and arcuate insertion holes 92 e, 92 f are formed.
- the second separator 93 is sheet-shaped while made from, e.g., a resin material such as polyethylene terephthalate, or a metallic material, and has, at a midsection thereof, a hole 93 a which has approximately the same size as the light-passing hole 94 a of the cover plate 91 .
- shaft insertion holes 93 b, 93 c and arcuate insertion holes 93 d, 93 e are formed.
- the shaft insertion hole 93 b and the shaft insertion hole 93 c are positioned approximately opposite to each other with the hole 93 a therebetween.
- the insertion holes 93 d, 93 e are positioned near the shaft insertion holes 93 b, 93 c, respectively.
- outward projecting mounting projections 93 f, 93 f, 93 f are provided so as to be spaced apart in the circumferential direction.
- the light amount adjusting blade 98 may not necessarily be a ND filter, but may be an iris blade whose aperture diameter is smaller than that of the hole 92 a of the first separator 92 , or may be a combination of an iris blade and a ND filter.
- the shutter blades 96 , 97 are rotatably supported by the base body 88 .
- the shutter blades 96 , 97 are rotatably supported by the base body 88 with the one partially overlapping the other, by the shutter rotating center shafts 90 c, 90 d of the base body 88 being inserted into the shaft insertion holes 96 a, 98 a, and using the shutter rotating center shafts 90 c, 90 d as fulcrums, respectively.
- the thus configured light amount adjusting device 67 is mounted onto the intermediate movable unit 66 by the mounting projections 89 b, 89 b, 89 b provided along the outer circumferential surface of the base body 88 being engaged with the mounting frame portions 69 b, 69 b, 69 b of the base frame 68 , and the second movable unit 65 is formed of the intermediate movable unit 66 and the light amount adjusting device 67 .
- the first movable unit 19 is moved in the front-rear direction (optical-axis direction) while guided by the linear guide 61 , by having the positions of the guided portions 116 a, 116 a, 116 a with respect to the guiding portions 18 e, 18 e, 18 e changed by the rotation of the cam cylinder 18 .
- an outer circumferential portion of the circular holder 120 is mounted on a front surface of the circumferential surface portion 116 of the moving frame 113 , and the opening/closing members 119 are positioned at the front-side recess 113 a of the moving frame 113 .
- a state in which any of the first movable unit 19 , the second movable unit 65 , and the focus moving unit 28 is positioned at a rear-side moving end, is a retracted position in which the lens barrel 3 is accommodated in the apparatus body 2 (see FIG. 6 ). In the retracted position, the lens barrel 3 does not project frontward from the apparatus body 2 (see FIG. 1 ).
Abstract
A light amount adjusting device includes: a cover plate having a light-passing hole; a first separator being sheet-shaped and having a hole; a second separator being elastically deformable and sheet-shaped, positioned on a side opposite to the cover plate with the first separator therebetween, and having a hole; a first light amount adjusting blade movable between the cover plate and the first separator; a second light amount adjusting blade being movable between the first separator and the second separator; a base body to which the cover plate, the first separator, and the second separator are mounted, having a throughhole and mounting grooves, the throughhole being formed to have a diameter larger than a diameter of the hole of the second separator, the mounting grooves allowing the second separator to be mounted therein and being opened toward the throughhole.
Description
- This application is a continuation and claims the benefit of priority under 35 U.S.C. §120 from U.S. application Ser. No. 11/965,259, filed Dec. 27, 2007. U.S. application Ser. No. 11/965,259 contains subject matter related to Japanese Patent Application No. 2007-004738 filed in the Japanese Patent Office on Jan. 12, 2007, the entire content of each of which is incorporated herein by reference.
- 1. Field of the Invention
- The present invention relates to technical fields of light amount adjusting device and image capture apparatus.
- 2. Description of Related Art
- Image capture apparatuses are provided with a light amount adjusting device for adjusting an amount of light captured via lens groups.
- In one such light amount adjusting device, two light amount adjusting blades, i.e., a shutter blade and a filter blade, are incorporated, such that the shutter blade is arranged between a base body formed from a resin material and one of separators, whereas the filter blade is arranged between the one separator and the other separator (see, e.g., Japanese Patent Application Publication No. JP 2005-173133, Patent Reference 1).
- However, in the light amount adjusting device disclosed in
Patent Reference 1, one light adjusting blade (shutter blade) is arranged between the base body formed from the resin material and the separator, and is thick due to the fact that the base body is made from a resin material. If there is a member arranged on a side opposite to the separator with having the base body therebetween, the member needs be arranged at a position not interfering with the base body, which requires a large arrangement space in the optical-axis direction, and hence prevents realization of a thickness reduction. - Accordingly, it is desirable to provide technology for realizing a thickness reduction in the optical-axis direction. The present invention is made in view of the above circumstances.
- In embodiments of the present invention, there are provided a light amount adjusting device and an image capture apparatus both of which include a cover plate having a light-passing hole, a first separator being sheet-shaped and having a hole, a second separator being elastically deformable and sheet-shaped, positioned on a side opposite to the cover plate with the first separator therebetween, and having a hole, a first light amount adjusting blade being movable between the cover plate and the first separator, for adjusting an amount of light, a second light amount adjusting blade being movable between the first separator and the second separator, for adjusting the amount of light, a base body to which the cover plate, the first separator, and the second separator are mounted, having a throughhole and mounting grooves, the throughhole being formed to have a diameter larger than a diameter of the hole of the second separator, the mounting grooves allowing the second separator to be mounted therein and being opened toward the throughhole, a first actuator for operating the first light amount adjusting blade, and a second actuator for operating the second light amount adjusting blade. In the light amount adjusting device and the image capture apparatus, the base body is formed by injection molding using a first mold and a second mold which are separated in a direction in which the throughhole passes through. Furthermore, the mounting groove is formed by forming the mounting groove forming projections in the first mold and the second mold, respectively, the mounting groove forming projections projecting in such directions as to come closer to each other, and coming into contact with each other during abutment of the first and second molds for charging resin melt into cavities. Furthermore, the second separator is mounted onto the base body by allowing the elastically deformed second separator to be elastically returned so as to insert at least a part of an outer circumferential portion thereof into the mounting grooves, by positioning the second separator further toward the second light amount adjusting blade than the throughhole, and by positioning the hole on an inner side of the throughhole.
- Accordingly, in the above-mentioned light amount adjusting device and image capture apparatus, it is possible to arrange the member to be arranged on the side opposite to the second separator with having the base body therebetween, inside the throughhole of the base body.
- Furthermore, in the above-mentioned light amount adjusting device and image capture apparatus, it is possible to move the member arranged on the side opposite to the second separator with having the base body therebetween, to a position at which the member is inserted into the throughhole, thereby realizing a thickness reduction of the light amount adjusting device in the optical-axis direction.
- In another embodiment of the present invention, a plurality of mounting projections may be provided on the outer circumferential portion of the second separator so as to be spaced apart in a circumferential direction, the mounting projections being mounted while inserted into the mounting grooves of the base body. Accordingly, it is possible to stabilize the mounting of the second separator on the base body.
- In still another embodiment of the present invention, a pair of shutter blades may be used as the first light amount adjusting blade, a light reducing filter may be used as the second light amount adjusting blade, the cover plate may be formed from a metallic material, and a sliding projection along which the first light amount adjusting blade is slid may be provided on the cover plate. Accordingly, frictional forces occurring during operations of the shutter blades are small, thereby improving the reliability of operations and reducing power consumption.
- In still another embodiment of the present invention, first sliding projections and second sliding projections may be provided as the sliding projection of the cover plate. The first and second projections may have different amounts of projection and be slid by the pair of shutter blades, respectively. Accordingly, the pair of shutter blades is held in different positions in a thickness direction, which prevent the pair of shutter blades from interfering with each other during rotations, thereby realizing smooth operations of the pair of shutter blades.
- In still another embodiment of the present invention, the shutter blades may be rotatably supported by the base body, and the sliding projections of the cover plate may be formed into approximate arcs on circles having rotating centers of the shutter blades as centers. Accordingly, frictional resistances of the shutter blades to the sliding projections occurring during rotations are hard to change, thereby realizing the smooth operations of the shutter blades.
- In the above-mentioned image capture apparatus, it is possible to move the member arranged on the side opposite to the second separator with having the base body therebetween, to a position at which the member is inserted into the throughhole, thereby realizing a thickness reduction of the light amount adjusting device in the optical-axis direction and the size-reduction of the image capture apparatus.
-
FIG. 1 is a diagram showing, along withFIGS. 2 through 37 , an image capture apparatus according to an embodiment of the present invention,FIG. 1 being a perspective view of the image capture apparatus with a lens barrel accommodated in an apparatus body; -
FIG. 2 is a perspective view of the image capture apparatus with the lens barrel projected from the apparatus body; -
FIG. 3 is a perspective view of the image capture apparatus as viewed from a side opposite to a side shown inFIGS. 1 and 2 ; -
FIG. 4 is an exploded perspective view of the lens barrel; -
FIG. 5 is an enlarged perspective view of the lens barrel; -
FIG. 6 is an enlarged sectional view of the lens barrel in a retracted position; -
FIG. 7 is an enlarged exploded perspective view showing a fixing portion, a focus motor unit, and a focus moving unit; -
FIG. 8 is an enlarged perspective view showing a state in which the focus motor unit and the focus moving unit are supported by the fixing portion; -
FIG. 9 is an enlarged exploded perspective view showing a fixed ring, a cum cylinder, and a linear guide; -
FIG. 10 is an enlarged exploded perspective view showing how a case body is mounted; -
FIG. 11 is an enlarged exploded perspective view showing the case body and various members to be mounted thereto; -
FIG. 12 is an enlarged sectional view showing how the case body is mounted; -
FIG. 13 is a diagram showing, along withFIGS. 14 through 16 , an intermediate movable unit,FIG. 13 being an exploded perspective view of an entire part thereof; -
FIG. 14 is an enlarged exploded perspective view showing a state in which a first correcting moving frame is supported by a base frame; -
FIG. 15 is an enlarged exploded perspective view showing a state in which the first correcting moving frame and a second correcting moving frame are supported by the base frame; -
FIG. 16 is an enlarged perspective view showing an outer yoke and other members in an exploded form; -
FIG. 17 is an enlarged sectional view of the first correcting moving frame; -
FIG. 18 is a diagram showing, along withFIG. 19 , a procedure for molding the first correcting moving frame,FIG. 18 being an enlarged sectional view showing a state in which a first mold and a second mold are abutted to form cavities and resin melts are charged into the cavities; -
FIG. 19 is an enlarged sectional view showing a state in which the first mold and the second mold are separated from each other to form the first correcting moving frame; -
FIG. 20 is an enlarged perspective view of the intermediate movable unit separated from a light amount adjusting device; -
FIG. 21 is an enlarged perspective view of a second movable unit; -
FIG. 22 is a schematic exploded front view showing a positional relationship between guide projections of the linear guide and other components; -
FIG. 23 is an exploded perspective view of the light amount adjusting device; -
FIG. 24 is an enlarged perspective view of the light amount adjusting device; -
FIG. 25 is an enlarged perspective view of a base body; -
FIG. 26 is an enlarged perspective view of the base body; -
FIG. 27 is a diagram showing, along withFIG. 28 , a procedure for molding the base body,FIG. 26 being an enlarged perspective view showing a state in which a first mold and a second mold are abutted to form cavities and resin melts are charged into the cavities; -
FIG. 28 is an enlarged sectional view showing a state in which the first mold and the second mold are separated from each other to form the base body; -
FIG. 29 is an enlarged exploded perspective view showing a cover plate and shutter blades; -
FIG. 30 is an enlarged perspective view of a light amount adjusting blade; -
FIG. 31 is an enlarged sectional view showing a state before a second separator is mounted on the base body; -
FIG. 32 is an enlarged sectional view showing a state in which the second separator is mounted on the base body; -
FIG. 33 is a schematic enlarged sectional view of the light amount adjusting blade; -
FIG. 34 is an enlarged exploded perspective view showing a movable frame and a base frame; -
FIG. 35 is a schematic enlarged front view showing a positional relationship among the movable frame, the base frame, and other components; -
FIG. 36 is an enlarged sectional view of the lens barrel in a wide angle position; and -
FIG. 37 is an enlarged sectional view of the lens barrel in a telephoto position. - An embodiment of the present invention will now be described with reference to the accompanying drawings.
- The following describes an embodiment in which the present invention is applied to a still camera. It should be noted that the scope to which the present invention is applicable is not limited to still cameras, but includes, e.g., video cameras and various types of image capture apparatuses incorporated into other equipment.
- In the following description, front/rear/up/down/left/right directions denote such directions as viewed from a photographer during image taking with a still camera. Accordingly, an object side is referred to as being the front, whereas a photographer side is referred to as being the rear.
- It is also noted that the front/rear/up/down/left/right directions are indicated merely for purposes of illustration, and thus the carrying out of the present invention is not restricted by these directions.
- As shown in
FIGS. 1 and 2 , animage capture apparatus 1 includes anapparatus body 2, and alens barrel 3 supported by theapparatus body 2 so as to be movable in a front-rear direction (an optical-axis direction). Thelens barrel 3 is of a so-called retractable type, which is accommodated in the apparatus body 2 (seeFIG. 1 ), e.g., during non-image taking, whereas it projects frontward from the apparatus body 2 (seeFIG. 2 ), e.g., during image taking. - Having such a retractable
type lens barrel 3, it is possible to compatibly realize miniaturization (thickness reduction) during non-image taking and the securing of good optical performance during image taking. - The
apparatus body 2 is formed such that various necessary components are arranged outside and inside a horizontally elongated, flat housing 4 (seeFIGS. 1 to 3 ), for example. - On a front surface of the
apparatus body 2 are aflash 5 and aviewfinder window 6. On a top surface of theapparatus body 2 are ashutter button 7, amode switching dial 8, and apower button 9. On a side surface (right side surface) of theapparatus body 2 are abattery cover 10, which, through its opening/closing, allows a battery, not shown, to be set into/removed from theapparatus body 2. On a rear surface of theapparatus body 2 are aviewfinder 11, azoom switch 12, adisplay screen 13,operation buttons terminal cover 15. Inside theterminal cover 15 are a power terminal, input/output terminals, and the like, all of which are not shown. - As shown in
FIGS. 4 to 6 , thelens barrel 3 includes a fixedmember 16, a fixedring 17 fixed to the fixedmember 16, acam cylinder 18 rotatably supported by the fixedring 17, and a firstmovable unit 19 supported by thecam cylinder 18 so as to be movable in the front-rear direction (optical-axis direction). - As shown in
FIGS. 7 and 8 , the fixedmember 16 has a frontward/rearward facing, approximately plate-shapedboard portion 20, and a mountingprojection 21 projecting frontward from a lower end portion of theboard portion 20. - An
arrangement hole 20 a passing through in the front-rear direction is formed in an approximate midsection of theboard portion 20. A frontward opened bearingrecess 20 b is formed in a right end portion at a position closer to a lower end of theboard portion 20. A frontward projecting guiding shaft portion 20 c is provided at a position closer to a lower end of an approximate midsection as viewed in a left-right direction of theboard portion 20. - An guiding
shaft 22 is mounted onto the bearingrecess 20 b of theboard portion 20. - A
spring hooking strip 21 a is provided on a front end portion of the mountingprojection 21. - A
focus motor unit 23 is mounted on the mountingprojection 21. Thefocus motor unit 23 has amotor 24, amotor mounting plate 25, aleadscrew 26 serving as a motor shaft of themotor 24, and anut member 27 screwed onto theleadscrew 26. - In the
focus motor unit 23, themotor mounting plate 25 is mounted onto the mountingprojection 21. - The
focus motor unit 23 moves afocus moving unit 28 in the front-rear direction, i.e., in the optical-axis direction. Thefocus moving unit 28 is formed such that afocus lens group 30 is mounted on a holdingarm 29. - The holding
arm 29 has an annularlens mounting portion 31, a plate-shapedarm portion 32 projecting diagonally to the lower right from thelens mounting portion 31, and a supportedcylindrical portion 33 projecting frontward from thearm portion 32. - The
focus lens group 30 is mounted onto thelens mounting portion 31. - A
spring hooking strip 32 a is provided at a position closer to a lower end of thearm portion 32. A C-shaped supportedstrip 32 b is provided on thearm portion 32. - The
focus moving unit 28 is movably supported by the fixedmember 16, by the supportedcylindrical portion 33 being slidably supported by the guidingshaft 22 and by the supportedstrip 32 b being slidably supported by the guiding shaft portion 20 c. With thefocus unit 28 supported by the fixedmember 16, a part of thearm portion 32 is fixed by thenut member 27 of thefocus motor unit 23, and atension coil spring 34 is supported between thespring hooking strip 21 a of the fixedmember 16 and thespring hooking strip 32 a of thefocus moving unit 28. Accordingly, thefocus moving unit 28 is urged frontward by thetension coil spring 34. - When the
motor 24 of thefocus motor unit 23 is started to rotate theleadscrew 26, thenut member 27 is moved in a direction responsive to a direction of rotation of theleadscrew 26, and thefocus moving unit 28 is moved in the optical-axis direction, while guided by the guidingshaft 22 and the guiding shaft portion 20 c. - An
imager unit 35 is mounted onto the fixedmember 16 from the rear (seeFIG. 4 ). Theimager unit 35 has a holdingframe member 36, and animager device 37, e.g., a CCD (Charge Coupled Device), held by the holdingframe member 36. In theimager unit 35, the holdingframe member 36 is mounted onto the fixedmember 16, and theimager device 37 is arranged in thearrangement hole 20 a of the fixed member 16 (seeFIG. 6 ). -
Photo interrupters 38 are mounted at predetermined positions of the fixed member 16 (seeFIG. 4 ). The photo interrupters 38 perform position detection of thefocus moving unit 28 in the optical-axis direction. - The fixed
ring 17 is mounted onto the fixedmember 16 from the front (seeFIGS. 4 and 5 ). The fixed ring has an approximately cylinder-shapedcylindrical base portion 39, aunit pressing portion 40 projecting from a lower end portion on a right end side of thecylindrical base portion 39, and acase mounting portion 41 projecting from a lower end portion on a left end side of thecylindrical base portion 39. - In the
cylindrical base portion 39, a gear arrangement hole, not shown, is formed at a position corresponding to thecase mounting portion 41. As shown inFIG. 9 , on an inner surface of thecylindrical base portion 39, linear inclined guidinggrooves rotation guiding groove 39 b are formed continuously. The linear inclined guidinggrooves rotation guiding groove 39 b continues from front end portions of the linear inclined guidinggrooves - Rearward opened
linear guide groove cylindrical base portion 39. - The
case mounting portion 41 has a frontward/rearward facingfront surface portion 41 a positioned at a front end, and a leftward/rightward facingside surface portion 41 b continuing from thefront surface portion 41 a. Thecase mounting portion 41 is formed so as to be opened downward and rearward. - With the fixed
ring 17 mounted on the fixedmember 16, the guidingshaft 22 is pressed from the front by theunit pressing portion 40, and thefocus motor unit 23 is covered from the front. - With the fixed
ring 17 mounted on the fixedmember 16, an axiallyelongated transmission gear 42 is rotatably supported between thefront surface portion 41 a of thecase mounting portion 41 and the fixed member 16 (seeFIG. 10 ). Thetransmission gear 42 is arranged in the gear arrangement hole of thecylindrical base portion 39. - A
case body 43 is mounted onto thecase mounting portion 41 of the fixed ring 17 (seeFIGS. 4 and 5 ). As shown inFIGS. 10 and 12 , thecase body 43 is formed such that afront half 44 and arear half 45 are coupled with each other. - In the
front half 44, an upwardfacing mounting step 44 a is formed at a position closer to an upper end of a front surface thereof. In thefront half 44, a frontward opened, indentedsensor mounting portion 44 b is also provided. In thefront half 44, a sensor arrangement hole 44 c passing through in the front-rear direction is further formed in thesensor mounting portion 44 b. - In the
rear half 45, a mountingprojection 45 a projecting rearward from a rear surface thereof is provided. In therear half 45, a rearward opened, indented sensor mounting portion 45 b is also provided. In therear half 45, asensor arrangement hole 45 c passing through in the front-rear direction is further formed in the sensor mounting portion 45 b. - A
motor 46 is mounted onto thecase body 43, and light-shielding blades 47 and a worm 48 are fixed to a motor shaft of the motor 46 (seeFIG. 4 ). With themotor 46 arranged inside thecase body 43, the motor shaft, the light-shielding blades 47, and the worm 48 are arranged inside thecase body 43. - A transmission gear group, not shown, is arranged inside the
case body 43. The transmission gear group is meshed with the worm 48 and thetransmission gear 42. - When the
motor 46 is started, the light-shielding blades 47 and the worm 48 are rotated along with the rotation of the motor shaft, and a driving force is transmitted to thetransmission gear 42 from the worm 48 via the transmission gear group. - A pair of
sensors case body 43. Eachsensor 49 is formed such that a detectingbody 49 b is mounted on asubstrate 49 a. As shown inFIGS. 11 and 12 , thesensors flat spring 50, with thesubstrates sensor mounting portions 44 b, 45 b of thecase body 43, and with the detectingbodies - The mounting
flat spring 50 is formed such that an elongated, plate-shaped member is bent into a predetermined shape, and is formed of a lowermost, upward/downward facingbase surface portion 51,sensor pressing portions base surface portion 51, an engagingportion 54 projecting rearward from an upper edge of the front-sidesensor pressing portion 52, a pressedportion 55 projecting upward from a rear edge of the engagingportion 54, a joiningportion 56 projecting rearward from an upper edge of the rear-sidesensor pressing portion 53, pressedportions 57 projecting upward from a rear edge of the joiningportion 56, and an engagingportion 58 projecting frontward from an upper edge of each pressedportion 57. -
Embossed protrusions sensor pressing portions - The mounting
flat spring 50 is mounted onto thecase body 43 by being elastically deformed such that thesensor pressing portions flat spring 50 mounted on thecase body 43, the portions other than the pressedportions case body 43. At this instance, thesubstrates sensors sensor mounting portions 44 b, 45 b of thecase body 43 are fixed while pressed byprotrusions flat spring 50 from outside, respectively, thereby preventing thesensors case body 43. - In the mounting
flat spring 50, the mountingprojection 45 a of thecase body 43 is sandwiched between the joiningportion 56 and the engagingportion 58, and the pressedportions ring 17 and the fixedmember 16 in directions nearing each other, respectively. At this instance,gaps 59, 60 are formed between the pressedportion 55 and a front surface of thefront half 44 and between the pressedportion 57 and the mountingprojection 45 a of therear half 45, respectively. - When the
motor 46 is rotated, the light-shielding blades 47 are rotated, and thesensors shielding blades 47, thereby detecting the rotational direction and number of revolutions of themotor 46. - As described above, in the
image capture apparatus 1, it is configured to fix thesensors case body 43 by the mountingflat spring 50 which has thesensor pressing portions sensors portions ring 17 and the fixedmember 16 in such directions as to near each other from outer surfaces, respectively, and the engagingportions case body 43 in a direction orthogonal to the directions in which the pressedportions - Accordingly, there is no need to use an adhesive for fixing the
sensors case body 43, thereby avoiding occurrence of inconveniences, such as splashing and infiltration of the adhesive to lenses and other components during application. - In addition, time for hardening the adhesive and a special tool for applying the adhesive are not needed, thereby realizing reductions in the assembling time and cost.
- Furthermore, maintenance work, such as the exchanging of the
sensors flat spring 50 from thecase body 43, thereby improving maintainability. - Furthermore, in the
image capture apparatus 1, the pressedportions ring 17 and the fixedmember 16, both of which sandwich thecase body 43 therebetween, respectively, so that the members on which thecase body 43 is mounted are shared as members for pressing the pressedportions - Furthermore, the
pressing protrusions sensors sensor pressing portions flat spring 50, respectively, thereby facilitating the holding of thesensors case body 43. - In addition, the mounting
flat spring 50 is mounted onto thecase body 43 such that thegaps 59, 60 are formed between the pressedportions flat spring 50 and outer surfaces of thecase body 43, thereby facilitating the mounting of the mountingflat spring 50 onto thecase body 43. - The
cam cylinder 18 is supported by the fixedring 17 so as to be movable in the front-rear direction as well as rotatable in the circumferential direction (seeFIGS. 4 , 6, and 9). - The
cam cylinder 18 is approximately annular in shape, and has arack gear 18 a on part of a rear end portion of an outer circumferential surface thereof. On the outer circumferential surface of thecam cylinder 18,protrusions - In an inner circumferential surface of the
cam cylinder 18, asupport groove 18 c extending in the circumferential direction is formed at a rear end portion thereof. In the inner circumferential surface of thecam cylinder 18, guideportions portions guide portions portions - The
cam cylinder 18 is movably supported by the fixedring 17, by theprotrusions grooves rotation guiding groove 39 b. Thecam cylinder 18 moves in the front-rear direction while rotating when theprotrusions grooves cam cylinder 18 rotates without moving in the front-rear direction when theprotrusions rotation guiding groove 39 b. - With the
cam cylinder 18 supported by the fixedring 17, therack gear 18 a is meshed with thetransmission gear 42 which is rotatably supported between the fixedmember 16 and the fixedring 17. Accordingly, when themotor 46 held by thecase body 43 is rotated, its driving force is transmitted to therack gear 18 a via the transmission gear group and thetransmission gear 42, to rotate thecam cylinder 18 in a direction responsive to the rotational direction of themotor 46, whereby thecam cylinder 18 either moves in the front-rear direction while rotating, or rotates, with respect to the fixedring 17. - The fixed
ring 17 supports alinear guide 61 such that theguide 61 is movable in the front-rear direction. Thelinear guide 61 is formed such that anannular portion 62 is integrated withguide projections annular portion 62. - The
annular portion 62 is provided with outward projectingprojections annular portion 62 is also provided with outward projecting supported projectingstrips projections - The
guide projections grooves - The
linear guide 61 is supported by the fixedring 17 so as to be movable in the front-rear direction, by theprojections grooves linear guide 61 is rotatable relative to thecam cylinder 18 by the supported projectingstrips support groove 18 c of thecam cylinder 18. Accordingly, when thecam cylinder 18 is rotated, since theprojections linear guide 61 are slidably engaged with the linear guidinggrooves cam cylinder 18 is rotated with respect to thelinear guide 61, whereas when thecam cylinder 18 is moved in the front-rear direction with respect to the fixedring 17, thelinear guide 61 is moved in the front-rear direction integrally with thecam cylinder 18. - An
accessory ring 64 is mounted onto a front half of the fixed ring 17 (seeFIGS. 4 and 6 ). - The
cam cylinder 18 supports a second movable unit 65 (seeFIG. 6 ). The secondmovable unit 65 includes an intermediatemovable unit 66 and a lightamount adjusting device 67 mounted on the intermediatemovable unit 66. - The intermediate
movable unit 66 is formed such that required components are mounted on or supported by a base frame 68 (seeFIGS. 13 through 16 ). - The
base frame 68 has acircular plate portion 69, and supportedsurface portions circular plate portion 69. The supportedsurface portions - A light-passing
opening 69 a passing through in the front-rear direction is formed at a midsection of thecircular plate portion 69. Rearward projecting mountingframe portions circular plate portion 69. The mountingframe portions surface portions - On a front surface of the
circular portion 69, bearingportions opening 69 a, and a bearingportion 69 d is provided above the light-passingopening 69 a. The bearingportions - On the outer circumferential surface of the
circular plate portion 69, guidedportions - In the supported
surface portions base frame 68, supportedgroove portions -
Flat yokes circular portion 69 with, e.g., an adhesive. Theyokes circular portion 69, respectively. Drivingmagnets yokes - On the front surface side of the
base frame 68, a first correcting movingframe 75 is supported so as to be movable in the left-right direction (a first direction) via afirst guide shaft 73 and a first sub-guide shaft 74 (seeFIGS. 13 and 14 ). - The first correcting moving
frame 75 has a light-passing hole 75 a formed at a midsection thereof. The first correcting movingframe 75 is provided with a firstshaft support portion 76 at a lower end portion thereof, firstsub-guide support portions shaft support portion 78 at a left end portion thereof, and secondsub-shaft support portions shaft support portion 76 has a first throughhole 76 a formed therein which passes through in the left-right direction, and the secondshaft support portion 78 has a second throughhole 78 a formed therein which passes through in an up-down direction. - As shown in
FIG. 17 , any of a center P of the first throughhole 76 a of the firstshaft support portion 76, a center Q of the second throughhole 78 a of the secondshaft support portion 78, and a center R of holes of the firstsub-shaft support portions sub-shaft support portions shaft support portion 76, the secondshaft support portion 78, and the firstsub-shaft support portions - The
first guide shaft 73 is slidably inserted into the first throughhole 76 a of the firstshaft support portion 76. The firstsub-guide shaft 74 is fixed to the firstsub-shaft support portions second guide shaft 80 is fixed to the second throughhole 78 a of the secondshaft support portion 78 by, e.g., force fit. A secondsub-guide shaft 81 is fixed to the secondsub-shaft support portions - The first correcting moving
frame 75 is supported by thebase frame 68 movably in the left-right direction, by both end portions of thefirst guide shaft 73 being fixed to the bearingportions sub-guide shaft 74 being slidably supported by the bearingportion 69 d. Accordingly, the first correcting movingframe 75 is moved in the left-right direction while sliding with respect to thefirst guide shaft 73. - As described above, the center P of the first throughhole 76 a of the first
shaft support portion 76 and the center Q of the second throughhole 78 a of the secondshaft support portion 78 are positioned in substantially the same plane which is orthogonal to the optical axis, so that a shaft center of thefirst guide shaft 73 and a shaft center of thesecond guide shaft 80 inserted into these throughholes, respectively, are also positioned in substantially the same plane which is orthogonal to the optical axis. - The first correcting moving
frame 75 is formed by injection molding, and the secondshaft support portion 78 is formed by afirst mold 200 and asecond mold 300 which are separated in the optical-axis direction (seeFIGS. 18 and 19 ). - The
first mold 200 is provided with rearward projectingthroughhole forming projections - The
second mold 300 is provided with frontward projectingthroughhole forming projections - The
first mold 200 and thesecond mold 300 are abutted with each other in the front-rear direction, to formcavities FIG. 18 ). At this instance, thethroughhole forming projections first mold 200 are brought into contact with thethroughhole forming projections second mold 300 so as to alternate with each other in the up-down direction. - Resin melts 500, 500, . . . are charged into the
cavities first mold 200 is separated from thesecond mold 300, thereby forming the first correcting moving frame 75 (seeFIG. 19 ). The second throughhole 78 a of the secondshaft support portion 78 is formed into a so-called “pinch-off” shape by thethroughhole forming projections throughhole forming projections - In this way, the second throughhole 78 a of the second
shaft support portion 78 can be easily formed into the pinch-off shape with thefirst mold 200 and thesecond mold 300, thereby facilitating the fabrication of the first correcting movingframe 75 and reducing its manufacturing cost. - In addition, by forming the second throughhole 78 a into the pinch-off shape, the second throughhole 78 a can be formed with high accuracy using a simple mold configuration.
- While an example is disclosed above in which the second throughhole 78 a of the second
shaft support portion 78 is formed into the pinch-off shape with thefirst mold 200 and thesecond mold 300, the first throughhole 76 a of the firstshaft support portion 76 may be formed into a pinch-off shape using two molds. In addition, both the first throughhole 76 a and the second throughhole 78 a can be formed into a pinch-off shape, each using two molds. Furthermore, the firstsub-shaft support portions sub-shaft support portions - The first correcting moving
frame 75 supports a second correcting movingframe 82 such that the second correcting movingframe 82 is movable in the up-down direction (a second direction) (seeFIGS. 14 and 15 ). - A
lens group 83 is mounted in an approximate midsection of the second correcting movingframe 82. The second correcting movingframe 82 is provided with rearward projecting supportedcylindrical portions projection 82 b at a right end portion. - The second correcting moving
frame 82 haslarge openings small openings large openings - In the second correcting moving
frame 82, the supportedcylindrical portions second guide shaft 80, and the supportedprojection 82 b is slidably supported by a middle part of thesecond sub-shaft 81. Accordingly, the second correcting movingframe 82 is movable in the up-down direction with respect to the first correcting movingframe 75, and is moved in the left-right direction integrally with the first correcting movingframe 75 when the first correcting movingframe 75 is moved in the left-right direction. - With the second correcting moving
frame 82 supported by the first correcting movingframe 75, thelarge openings magnets base frame 68, respectively. - A
circuit board 84 is mounted on a front surface of the second correcting moving frame 82 (seeFIGS. 15 and 16 ). Thecircuit board 84 includes a frontward/rearward facing base surface portion 84 a, and a first connectingsurface portion 84 b projecting from an upper end portion of the base surface portion 84 a. - The base surface portion 84 a is provided with driving
coils Hall sensors frame 75 and the second correcting movingframe 82. - Circuit wires, not shown, are formed on the first connecting
surface portion 84 b, and various circuit wires are connected to the driving coils 85, 85. - In the
circuit board 84, the base surface portion 84 a is mounted on the front surface of the second correcting movingframe 82 with an adhesive or the like, and the first connectingsurface portion 84 b is connected to respective power driving circuits, not shown. With thecircuit board 84 mounted on the front surface of the second correcting movingframe 82, the driving coils 85, 85 are positioned inside thelarge openings frame 82, and theHall sensors small openings frame 82, respectively. - As described above, with the first correcting moving
frame 75 supported by thebase frame 68 to which the drivingmagnets frame 82 supported by the first correcting movingframe 75, and with thecircuit board 84 mounted on the second correcting movingframe 82, an approximately L-shapedouter yoke 86 is mounted onto the front surface of thebase frame 68 with an adhesive or the like, thereby forming the intermediate movable unit 66 (seeFIG. 16 ). - A blur correction mechanism 87 is formed of the above-mentioned
yokes magnets frame 75,first guide shaft 73, firstsub-guide shaft 74,second guide shaft 80, secondsub-guide shaft 81, second correcting movingframe 82, drivingcoils FIG. 13 ). - When the power driving circuits supply driving currents to the driving coils 85, 85 in the blur correction mechanism 87, a thrusting force occurs in a predetermined direction by the driving coils 85, 85 and the driving
magnets frame 75 and the second correcting movingframe 82 holding thelens group 83 therein are moved integrally in the left-right direction (first direction) while guided by thefirst guide shaft 73 and the firstsub-guide shaft 74. In addition, by this thrusting force, the second correcting movingframe 82 holding thelens group 83 therein is moved in the up-down direction (second direction) while guided by thesecond guide shaft 80 and the secondsub-guide shaft 81. As a result, thelens group 83 is moved within a plane orthogonal to the optical axis, thereby correcting a focal position to prevent image blurring. - It is noted that the
magnets Hall sensors Hall sensors - When the blurring correcting operation is performed as mentioned above, the second correcting moving
frame 82 is slid with respect to both end portions of thesecond guide shaft 80. Thus, in the blur correction mechanism 87, it is configured to fix the portion other than both end portions of thesecond guide shaft 80 to the secondshaft support portion 78 of the first correcting movingframe 75, and to move the second correcting movingframe 82 with respect to both end portions of thesecond guide shaft 80, which means gaps for sliding are formed with respect to the supportedcylindrical portions second guide shaft 80. Consequently, play is hard to occur during movement of the second correcting movingframe 82, thereby improving the reliability of the blurring correcting operation. - The light
amount adjusting device 67 is mounted on a rear surface side of the intermediatemovable unit 66, and both components form the second movable unit 65 (seeFIGS. 20 and 21 ). - As shown in
FIGS. 6 and 22 , in the secondmovable unit 65, the supportedgroove portions cylindrical portions base frame 68 are slidably supported by theguide projections linear guide 61, and also the guidedportions guide portions cam cylinder 18, respectively. Accordingly, the secondmovable unit 65 has its position changed with respect to the guidedportions cam cylinder 18, and is moved in the front-rear direction (optical-axis direction) while guided by thelinear guide 61. - It is noted that in the
lens barrel 3, thelinear guide 61 is not cylinder-shaped as a whole, but is formed of theannular portion 62 and the plurality of theguide projections annular portion 62, thereby facilitating the assembling of the secondmovable unit 65 into thelinear guide 61. - With the second
movable unit 65 supported by thelinear guide 61 as mentioned above, oneguide projection 63 of thelinear guide 61, i.e., theguide projection 63 staying off to the lower left (aguide projection 63A shown inFIG. 22 ) is positioned between the driving coils 85, 85 so as to correspond to each other, as shown inFIG. 22 . Accordingly, when the secondmovable unit 65 is moved in the optical-axis direction by the rotation of thecam cylinder 18 and when thelinear guide 61 is moved in the optical-axis direction integrally with thecam cylinder 18, the driving coils 85, 85 do not interfere with theguide projection 63A, thereby easily avoiding the interference between the blur correction mechanism 87 and other mechanisms arranged inside thelens barrel 3, and also realizing the miniaturization of thelens barrel 3. - In addition, in the
image capture apparatus 1, it is configured to use theguide projections linear guide 61 as means for guiding the secondmovable unit 65 in the front-rear direction, and to move thelinear guide 61 in the front-rear direction integrally with thecam cylinder 18. As a result, it is possible to reduce the length of thelens barrel 3 in the optical-axis direction by an amount of the movement of thelinear guide 61 in the front-rear direction, compared with, e.g., a case where a guide shaft fixed inside thelens barrel 3 is used as means for guiding the secondmovable unit 65. - Furthermore, the three circumferentially spaced-apart guide
projections linear guide 61, so that thelinear guide 61 holds the secondmovable unit 65 with a large force, thereby stabilizing the movement of the secondmovable unit 65 in the optical-axis direction. - While an example is disclosed above in which the three circumferentially spaced-apart guide
projections linear guide 61, the number ofguide projections - Furthermore, the
linear guide 61 is formed such that theannular portion 62 is formed integrally with theguide projections - Moreover, as described above, in the
image capture apparatus 1, thefirst guide shaft 73 and thesecond guide shaft 80 for guiding the first correcting movingframe 75 in the blur correction mechanism 87 are positioned in substantially the same plane orthogonal to the optical axis, thereby realizing a reduction in the length of the blur correction mechanism 87 in the optical-axis direction, as well as the miniaturization of thelens barrel 3. - In addition, in the blur correction mechanism 87, it is configured such that the first correcting moving
frame 75 is slidably supported by thefirst guide shaft 73, and thesecond guide shaft 80 is fixed to the first correcting movingframe 75, so that neither thefirst guide shaft 73 nor thesecond guide shaft 80 are moved, but only thesecond guide shaft 80 is moved, during movement of the first correcting movingframe 75. Consequently, the longitudinal length of one of the shafts can be shortened by an amount of the movement. - The light
amount adjusting device 67 of the secondmovable unit 65 is mounted on a rear surface side of the base frame 68 (seeFIGS. 20 and 21 ). - The light
amount adjusting device 67 is formed such that predetermined members are supported by or mounted on a base body 88 (seeFIGS. 20 , 21, 23, and 24). - The
base body 88 is formed from a resin material into an approximately annular shape, and as shown inFIG. 25 , has a frontward opened,shallow attachment recess 90 in a portion other than an outercircumferential portion 89 on a front surface side. Thebase body 88 is formed such that the portion on which theattachment recess 90 is formed is thinner than the outercircumferential portion 89. - A rearward opened, groove-shaped
notch 88 a is formed in part of a rear surface side of thebase body 88 to provide a thin-walled portion 88 b (seeFIG. 20 ), and the thin-walled portion 88 b is formed thinner than other portions. - Engageable catches 89 a, 89 a, 89 a are provided on the outer
circumferential portion 89 of thebase body 88 so as to be spaced apart in the circumferential direction (seeFIGS. 23 and 24 ). Mountingprojections base body 88 so as to be spaced apart in the circumferential direction. - Rearward opened
molding holes circumferential portion 89 of the base body 88 (seeFIG. 26 ), and the molding holes 89 c, 89 c, 89 c are spaced apart in the circumferential direction. Front end portions of the molding holes 89 c, 89 c, 89 c are formed as mountinggrooves attachment recess 90, respectively. - The
base body 88 is formed by injection molding, and the molding holes 89 c, 89 c, 89 c including the mountinggrooves first mold 600 and asecond mold 700 which are separated from each other in the optical-axis direction (seeFIGS. 27 and 28 ). - The
first mold 600 is provided with rearward projecting mountinggroove forming projections - The
second mold 700 is provided with frontward projecting mountinggroove forming projections - The
first mold 600 and thesecond mold 700 are abutted with each other in the front-rear direction, to formcavities FIG. 27 ). At this instance, the mountinggroove forming projections first mold 600 are brought into partial contact with the mountinggroove forming projections second mold 700. - Resin melts 900, 900, . . . are charged into the
cavities first mold 600 is separated from thesecond mold 700, thereby forming the base body 88 (seeFIG. 28 ). The molding holes 89 c, 89 c, 89 c including the mountinggrooves groove forming projections groove forming projections - Since the molding holes 89 c, 89 c, 89 c including the mounting
grooves first mold 600 and thesecond mold 700 in this way, it is possible to facilitate the fabrication of thebase body 88 and to reduce its manufacturing cost. - In addition, by forming the molding holes 89 c, 89 c, 89 c including the mounting
grooves grooves - The
attachment recess 90 has alarge throughhole 90 a formed therein (seeFIG. 25 ). Theattachment recess 90 is provided with a frontward projecting filter rotating center shaft 90 b, and frontward projecting shutter rotatingcenter shafts throughhole 90 a. Theattachment recess 90 hasarcuate throughholes 90 e, 90 f formed therein which pass through in the front-rear direction. - The filter rotating center shaft 90 b and the shutter rotating
center shafts center shafts center shafts - The
base body 88 is provided with frontward projecting,arrangement step portions attachment recess 90 so as to be spaced apart in the circumferential direction. - A
cover plate 91, afirst separator 92, and asecond separator 93 are mounted on a front surface side of the base body 88 (seeFIG. 24 ). - The
cover plate 91 is formed from, e.g., a metallic material, and includes acover portion 94 facing in the front-rear direction, and mounted projectingstrips cover portion 94. - At a midsection of the
cover portion 94, a light-passing hole 94 a is formed which is smaller than the throughhole 90 a of thebase body 88. Thecover portion 94 is provided with first slidingprojections projections FIGS. 23 and 29 ). - The first sliding
projections projections projections projections projections - Along the outer circumferential portion of the
cover portion 94, shaft insertion holes 94 d, 94 e, 94 f and arcuate insertion holes 94 g, 94 h are formed. Theshaft insertion hole 94 d and the shaft insertion holes 94 e, 94 f are positioned approximately opposite with the light-passing hole 94 a therebetween, whereas the shaft insertion holes 94 e, 94 f are spaced apart in the circumferential direction. Theinsertion hole 94 g is positioned near theshaft insertion hole 94 d, whereas theinsertion hole 94 h is positioned between the shaft insertion holes 94 e, 94 f. - The first sliding
projections shaft insertion hole 94 f as their center, whereas the second slidingprojections - At predetermined positions of the
cover portion 94, protrusions 94 i, 94 i, . . . are provided so as to be embossed rearward. - Engageable holes 95 a, 95 a, 95 a are formed in the mounted projecting
strips - The
first separator 92 is sheet-shaped while made from, e.g., a resin material such as polyethylene terephthalate, or a metallic material, and has, at a midsection thereof, ahole 92 a which has approximately the same size as the light-passing hole 94 a of thecover plate 91. Along an outer circumferential portion of thefirst separator 92, shaft insertion holes 92 b, 92 c, 92 d and arcuate insertion holes 92 e, 92 f are formed. Theshaft insertion hole 92 b and the shaft insertion holes 92 c, 92 d are positioned approximately opposite to each other with thehole 92 a therebetween, and theshaft insertion hole 92 c, 92 d are spaced apart in the circumferential direction. Theinsertion hole 92 e is positioned near theshaft insertion hole 92 b, and the insertion hole 92 f is positioned between the shaft insertion holes 92 c, 92 d. - The
second separator 93 is sheet-shaped while made from, e.g., a resin material such as polyethylene terephthalate, or a metallic material, and has, at a midsection thereof, ahole 93 a which has approximately the same size as the light-passing hole 94 a of thecover plate 91. Along an outer circumferential portion of thesecond separator 93, shaft insertion holes 93 b, 93 c and arcuate insertion holes 93 d, 93 e are formed. Theshaft insertion hole 93 b and the shaft insertion hole 93 c are positioned approximately opposite to each other with thehole 93 a therebetween. The insertion holes 93 d, 93 e are positioned near the shaft insertion holes 93 b, 93 c, respectively. - Along the outer circumferential portion of the
second separator 93, outward projecting mountingprojections - The
base body 88 rotatably supports shutterblades amount adjusting blade 98 provided as a second light amount adjusting blade. - The
shutter blades shutter blades - As shown in
FIG. 30 , the lightamount adjusting blade 98 is formed such thatsheet members light reducing filter 99. Thesheet members circular holes hole 92 a of thefirst separator 92. Accordingly, in the lightamount adjusting blade 98, thelight reducing filter 99 is exposed to positions corresponding to thecircular holes light reducing filter 99. - In the light
amount adjusting blade 98, ashaft insertion hole 98 a, and anoperation hole 98 b which is elongated in one direction, are formed at one end portion thereof (seeFIG. 23 ). - The
second separator 93 is mounted while arranged on theattachment recess 90 of thebase body 88, by thesecond separator 93 being elastically deformed such that the whole body thereof is bent (seeFIG. 31 ) and elastically returned, to insert the mountingprojections grooves FIG. 32 ). Thesecond separator 93, as mounted on thebase body 88, comes in surface contact with a front surface of the attachment recess 90 (seeFIG. 33 ). At this instance, the filter rotating center shaft 90 b and the shutter rotatingcenter shaft 90 c of thebase body 88 are inserted into the shaft insertion holes 93 b, 93 c of thesecond separator 93, respectively. The shutter rotatingcenter shaft 90 c is positioned immediately outside thesecond separator 93. - The light
amount adjusting blade 98 is rotatably supported on a front surface side of thesecond separator 93 by thebase body 88, by the filter rotating center shaft 90 b of thebase body 88 being inserted into theshaft insertion hole 98 a, and using the filter rotating center shaft 90 b as a fulcrum. - With the light
amount adjusting blade 98 supported by thebase body 88, thefirst separator 92 is mounted while arranged on thearrangement step portions base body 88. Accordingly, the lightamount adjusting blade 98 is rotatable while sliding between thefirst separator 92 and thesecond separator 93. - The light
amount adjusting blade 98 has a three-sheet configuration with thesheet members light reducing filter 99 as mentioned above, thereby preventing thelight reducing filter 99 from being damaged or broken during rotation between thefirst separator 92 and thesecond separator 93. - While an example is disclosed above in which a ND filter is used as the light
amount adjusting blade 98, the lightamount adjusting blade 98 may not necessarily be a ND filter, but may be an iris blade whose aperture diameter is smaller than that of thehole 92 a of thefirst separator 92, or may be a combination of an iris blade and a ND filter. - With the
first separator 92 mounted on thebase body 88, theshutter blades base body 88. Theshutter blades base body 88 with the one partially overlapping the other, by the shutter rotatingcenter shafts base body 88 being inserted into the shaft insertion holes 96 a, 98 a, and using the shutter rotatingcenter shafts - With the
shutter blades base body 88, thecover plate 91 is mounted onto thebase body 88. Thecover plate 91 is mounted onto thebase body 88 by the engageable catches 89 a, 89 a, 89 a being engaged with theengageable holes strips shutter blades cover plate 91 and thefirst separator 92. - At this instance, the projections 94 i, 94 i, . . . of the
cover plate 91 come in contact with a front surface of thefirst separator 92, thereby ensuring moving spaces of theshutter blades cover plate 91 and thefirst separator 92. It is noted that the projections 94 i, 94 i, . . . are provided at positions off moving loci of theshutter blades - In addition, as mentioned above, the first sliding
projections projections cover plate 91 are formed to have different heights, and theshutter blade 97 is slid along the first slidingprojections shutter blade 96 is slid along the second slidingprojections - In this way, in the light
amount adjusting device 67, the first slidingprojections projections cover plate 91 are formed to have different heights, so that theshutter blade 96 and theshutter blade 97 can be held at positions different in a thickness direction. Consequently, theshutter blades - Furthermore, as mentioned above, the first sliding
projections shaft insertion hole 94 f as their center, and the second slidingprojections shutter blades projections projections shutter blades - It is noted that in the light
amount adjusting device 67, it is configured to arrange the lightamount adjusting blade 98 between thefirst separator 92 and thesecond separator 93, and to arrange theshutter blades first separator 92 and thecover plate 91 having the first slidingprojections projections - In this way, by arranging the
shutter blades shutter blades lens barrel 3. - A
first actuator 101 and asecond actuator 102 are mounted onto a rear surface of the base body 88 (seeFIG. 23 ). - The
first actuator 101 has ayoke member 103, and acoil 104, and adriving arm 106 which are held by theyoke member 103. The drivingarm 106 includes abase portion 106 a and anarm portion 106 b projecting frontward from thebase portion 106 a. Amagnetized magnet 105 is held by thebase portion 106 a of the drivingarm 106 so as to be integral therewith. - The
second actuator 102 has ayoke member 107, and acoil 108 and a driving arm 110 which are held by theyoke member 107. The driving arm 110 includes a base portion 110 a, and anarm portion 110 b projecting frontward from the base portion 110 a. Amagnetized magnet 109 is held by the base portion 110 a of the driving arm 110 so as to be integral therewith. - The
first actuator 101 and thesecond actuator 102 are operated such that thrusts occur between thecoils magnets coils arms 106, 110 responsive to the directions of the currents flowing through thecoils - The
first actuator 101 and thesecond actuator 102 are mounted onto thebase body 88 at positions of thebase body 88 which are spaced part in the circumferential direction, while pressed by apressing plate 111 from the rear. Thepressing plate 111 is approximately U-shaped, and is fixed to thebase body 88 by, e.g., screwing. Thepressing plate 111 is fixed to a portion other than the thin-walled portion 88 b of the base body 88 (seeFIGS. 20 and 21 ). - With the
first actuator 101 and thesecond actuator 102 mounted on thebase body 88, thearm portion 106 of the drivingarm 106 is inserted into holes, in order of the insertion hole 90 f of thebase body 88, theinsertion hole 93 e of thesecond separator 93, the insertion hole 92 f of thefirst separator 92, the operation holes 96 b, 97 b of theshutter blades insertion hole 94 h of thecover plate 91, whereas thearm portion 110 b of the driving arm 110 is inserted into holes, in order of theinsertion hole 90 e of thebase body 88, theinsertion hole 93 d of thesecond separator 93, theoperation hole 98 b of the lightamount adjusting blade 98, theinsertion hole 92 e of thefirst separator 92, and theinsertion hole 94 g of thecover plate 91. - When the driving
arm 106 is rotated by the driving of thefirst actuator 101, opening edges of the operation holes 96 b, 97 b are pressed by thearm portion 106 b, and theshutter blades coil 104. When the driving arm 110 is rotated by the driving of thesecond actuator 102, an opening edge of theoperation hole 98 b is pressed by thearm portion 110 b, and the lightamount adjusting blade 98 is rotated in a direction responsive to the direction of the current flowing through thecoil 108. - A wiring board 112 is mounted onto a rear surface of the pressing plate 111 (see
FIG. 4 ). The wiring board 112 is connected to thecoils coils - The thus configured light
amount adjusting device 67 is mounted onto the intermediatemovable unit 66 by the mountingprojections base body 88 being engaged with the mountingframe portions base frame 68, and the secondmovable unit 65 is formed of the intermediatemovable unit 66 and the lightamount adjusting device 67. - As described above, in the light
amount adjusting device 67, the lightamount adjusting blade 98 is sandwiched between thesecond separator 93 and thefirst separator 92 which are mounted on thebase body 88. Accordingly, the throughhole 90 a of thebase body 88 is made larger than thehole 93 a of thesecond separator 93, and a member arranged on a rear side of thebase body 88, i.e., the holdingarm 29 of thefocus moving unit 28 can be moved as far as to a position where thearm 29 is inserted into the throughhole 90 a, by the enlarged size of the throughhole 90 a (seeFIG. 33 ). Consequently, it is possible to realize a thickness reduction of thelens barrel 3 in the optical-axis direction. - In addition, the
second separator 93 is mounted onto thebase body 88 by thesecond separator 93 being elastically deformed to insert the mountingprojections grooves second separator 93 onto thebase body 88, and also the formation of the mountinggrooves - Furthermore, in the light
amount adjusting device 67, the plurality of the mountingprojections grooves base body 88, are provided along the outer circumferential portion of thesecond separator 93 so as to be spaced apart in the circumferential direction, thereby stabilizing the mounting condition of thesecond separator 93 on thebase body 88. - In addition, in the light
amount adjusting device 67, thecover plate 91 is made from a metallic material, and the second slidingprojections projections shutter blades shutter blades - The first
movable unit 19 is formed such that alens group 114 is held in a moving frame 113 (seeFIGS. 4 and 6 ). As shown inFIGS. 34 and 35 , the movingframe 113 includes a frontward/rearward facing, plate-shapedannular portion 115, and acircumferential surface portion 116 provided along an outer circumferential edge of theannular portion 115. Thecircumferential surface portion 116 projects both frontward and rearward from theannular portion 115. - In the moving
frame 113, a frontward opened front-side recess 113 a and a rearward opened rear-side recess 113 b are formed by thecircumferential surface portion 116 being projected frontward and rearward from theannular portion 115. - At a midsection of the
annular portion 115, thelens group 114 is mounted via alens holder 117. - On an outer circumferential surface of the
circumferential surface portion 116, outward projecting guided portions 116 a, 116 a, 116 a are provided so as to be spaced apart in the circumferential direction. On a side further rearward than theannular portion 115 in an inner circumferential surface of thecircumferential surface portion 116, inward projecting supported projectingridges ridges - On a rear end portion of the
circumferential surface portion 116, outward openedinsertion notches - In the first
movable unit 19, the supported projectingridges circumferential surface portion 116 of the movingframe 113 are slidably supported by the slidinggrooves guide projections linear guide 61, respectively, and also the guided portions 116 a, 116 a, 116 a provided on the outer circumferential surface of thecircumferential surface portion 116 are slidably supported by the guidingportions cam cylinder 18, respectively. Accordingly, the firstmovable unit 19 is moved in the front-rear direction (optical-axis direction) while guided by thelinear guide 61, by having the positions of the guided portions 116 a, 116 a, 116 a with respect to the guidingportions cam cylinder 18. - A
lens barrier 118 is mounted on a front surface side of the first movable unit 19 (seeFIGS. 4 and 6 ). Thelens barrier 118 is formed such that a pair of opening/closingmembers circular holder 120, and opens/closes a light passage through operations of the opening/closingmembers circular holder 120 is formed such that a front-side member 120 a and a rear-side member 120 b are coupled at the front and the rear thereof, respectively. - In the
lens barrier 118, an outer circumferential portion of thecircular holder 120 is mounted on a front surface of thecircumferential surface portion 116 of the movingframe 113, and the opening/closingmembers 119 are positioned at the front-side recess 113 a of the movingframe 113. - With the
lens barrier 118 mounted on the firstmovable unit 19, anaccessory ring 121 is mounted on a side of outer surfaces of the movingframe 113 and thecircular holder 120. - With the
lens barrel 3 configured as described above, as shown inFIG. 22 , thefirst actuator 101 of the lightamount adjusting device 67, thesecond actuator 102 of the lightamount adjusting device 67, and thearm portion 32 of the holdingarm 29 of thefocus moving unit 28 are positioned between adjacent ones of theguide projections linear guide 61, respectively, as viewed in the optical-axis direction. - Accordingly, when the light
amount adjusting device 67 and thefocus moving unit 28 are moved in the optical-axis direction, theguide projections linear guide 61 for guiding the firstmovable unit 19 and the secondmovable unit 65 in the optical-axis direction do not interfere with thefirst actuator 101, thesecond actuator 102, and the holdingarm 29, thereby realizing miniaturization based on the effective utilization of an arrangement space. - It is noted that the thin-
walled portion 88 b is formed on thebase body 88 of the secondmovable unit 65, and also thepressing plate 111 is approximately U-shaped and fixed to the portion other than the thin-walled portion 88 b of the base body 88 (seeFIG. 21 ), and when the holdingarm 29 is moved frontward, thearm portion 32 is inserted into thenotch 88 a for forming the thin-walled portion 88 b. Accordingly, the secondmovable unit 65 and the fixedmember 16 for supporting thefocus moving unit 28 can be arranged close to each other, thereby realizing a thickness reduction of thelens barrel 3 in the optical-axis direction. - In addition, in the optical-axis direction, one guide projection 63 (the
guide projection 63A shown inFIG. 22 ) of thelinear guide 61 is positioned between the driving coils 85, 85 of the blur correction mechanism 87, so that interference between the driving coils 85, 85 and theguide projection 63A can be avoided, thereby realizing a further miniaturization of thelens barrel 3. - Furthermore, the
guide projections linear guide 61 are provided so as to be spaced apart in the circumferential direction, thereby stabilizing the operations during movements of the firstmovable unit 19 and the secondmovable unit 65 in the optical-axis direction. - In the
lens barrel 3 configured as described above, a state, in which any of the firstmovable unit 19, the secondmovable unit 65, and thefocus moving unit 28 is positioned at a rear-side moving end, is a retracted position in which thelens barrel 3 is accommodated in the apparatus body 2 (seeFIG. 6 ). In the retracted position, thelens barrel 3 does not project frontward from the apparatus body 2 (seeFIG. 1 ). - When the
lens barrel 3 moves from the retracted position (seeFIG. 6 ) to a wide-angle position (seeFIG. 36 ), the camecylinder 18 is moved frontward while rotating, and thelinear guide 61 is moved frontward integrally with thecam cylinder 18. While the firstmovable unit 19 and the secondmovable unit 65 are moved frontward by the rotation of thecam cylinder 18, an amount of the frontward movement of the firstmovable unit 19 is large, whereas an amount of the frontward movement of the secondmovable unit 65 is small. - When the
lens barrel 3 moves from the wide-angle position to a telephoto position (seeFIG. 37 ), thecam cylinder 18 is rotated without moving in the front-rear direction. The secondmovable unit 65 is moved frontward by the rotation of thecam cylinder 18 so as to near the firstmovable unit 19. In the telephoto position, the secondmovable unit 65 is positioned inside the rear-side recess 113 b of the firstmovable unit 19 with a part thereof excluded (seeFIG. 37 ), by the guidedportions base frame 68 being inserted into theinsertion notches frame 113, respectively (seeFIG. 35 ). - The
focus moving unit 28 is operated by a driving source independent of those of the firstmovable unit 19 and the secondmovable unit 65, and in each of the states from the retracted position to the telephoto position, the focusing function is executed by thefocus lens group 30 being moved in the optical-axis direction. - As described above, the
lens group 114 of the firstmovable unit 19, thelens group 83 of the secondmovable unit 65, and thefocus lens group 30 of thefocus moving unit 28 are used as movable lens groups which are moved in the optical-axis direction for zooming and focusing. Thelens group 114 functions as a first lens group, thelens group 83 functions as a second lens group, thefocus lens group 30 functions as a third lens group. It is noted that any of thelens group 114, thelens group 83, and thefocus lens group 30 may be a combination of a plurality of lenses or may be a single lens. - When the
lens barrel 3 moves from the telephoto position to the wide-angle position, thecam cylinder 18 is moved in a direction opposite to the above-mentioned direction without moving in the front-rear direction, and the secondmovable unit 65 is moved rearward so as to be away from the firstmovable unit 19. When thelens barrel 3 moves from the wide-angle position to the retracted position, thecam cylinder 18 is moved rearward integrally with thelinear guide 61, while similarly rotating in the opposite direction, and the firstmovable unit 19 and the secondmovable unit 65 are moved rearward. - It is noted that in the
base frame 68 of the secondmovable unit 65, the outer circumferential surface is cut into a plurality of flat portions, and a left-side surface is formed into a firstflat surface portion 68A facing leftward and a lower surface off to the right is formed into a secondflat surface portion 68B facing diagonally to the lower right, as shown inFIG. 35 . - By aligning one driving
coil 85 with the firstflat surface portion 68A such that a longitudinal direction of that drivingcoil 85 is the up-down direction, it is configured to ensure an arrangement space advantageous to the drivingcoil 85. - In addition, the second
flat surface portion 68B is formed so as to be aligned with a right end of the moving stroke of the first correcting movingframe 75, and oneHall sensor 84 d is arranged on a side (right side) of the secondflat surface portion 68B with respect to anearby driving coil 85. By arranging theHall sensor 84 d which is small in outside shape further toward the secondflat surface portion 68B than the drivingcoil 85 which is larger in outside shape, it is configured to realize the effective utilization of an arrangement space. - Furthermore, in the second
movable unit 65, it is configured such that the first correcting movingframe 75 is moved in the left-right direction while guided by thefirst guide shaft 73, by the drivingcoil 85 positioned on the left side, and the second correcting movingframe 82 is moved in the up-down direction while guided by thesecond guide shaft 80, by the drivingcoil 85 positioned on the lower side. At this instance, by arranging the drivingcoil 85 positioned on the left side further toward thefirst guide shaft 73 than thenearby Hall sensor 84 d, and by arranging the drivingcoil 85 positioned on the lower side further toward thesecond guide shaft 80 than thenearby Hall sensor 84 d, the drivingcoil 85 for movement in the left-right direction and thefirst guide shaft 73 for guiding in the left-right direction are positioned close to each other, and also the drivingcoil 85 for movement in the up-down direction and thesecond guide shaft 80 for guiding in the up-down direction are positioned close to each other, so that the first correcting movingframe 75 and the second correcting movingframe 82 are hard to gouge during movements, thereby realizing their smooth operations. - Specific shapes and structures of the respective parts and components that have been disclosed in the above embodiment are provided merely as one example for illustrative purposes for ease of understanding of various embodiments for carrying out the present invention, and these shapes and structures are not to be construed as limiting the technical scope of the present invention.
Claims (20)
1. An intermediate movable device of an image capture apparatus, comprising:
a base frame having a circumferential surface with a hole formed at a midsection on a side of the base frame having a longest dimension; and
a blur correction mechanism to correct a focal position, the blur correction mechanism including
a first correcting moving frame having a hole formed at a midsection on a side of the first correcting moving frame having a longest dimension, and
a second correcting moving frame having a lens mounted at a midsection on a side of the second correcting moving frame having a longest dimension.
2. The intermediate movable device according to claim 1 , wherein the first correcting moving frame is movably supported by the base frame in a left-right direction with respect to the base frame.
3. The intermediate movable device according to claim 1 , wherein the first correcting moving frame further includes a first shaft support having a first throughhole in a left-right direction with respect to the base frame, and a second shaft support having a second throughhole in an up-down direction with respect to the base frame.
4. The intermediate movable device according to claim 3 , wherein the first correcting frame further includes a first guide shaft to guide the movement of the first correcting moving frame, the first guide shaft being slidable relative to the first throughhole, and a second guide shaft to guide the movement of the second correcting moving frame, the second guide shaft being fixed to the second throughhole.
5. The intermediate movable device according to claim 3 , wherein a center of the first throughhole and a center of the second throughhole are positioned in a plane orthogonal to an optical axis.
6. The intermediate movable device according to claim 1 , wherein the first correcting moving frame further includes a first sub-guide shaft to guide movement of the first correcting moving frame, and a second sub-guide shaft to guide movement of the second correcting moving frame.
7. The intermediate movable device according to claim 1 , wherein the second correcting frame is movably supported by the first correcting moving frame in an up-down direction with respect to the first correcting moving frame.
8. The intermediate movable device according to claim 7 , wherein the second correcting frame moves in a left-right direction when the first correcting moving frame is moving in the left-right direction.
9. The intermediate movable device according to claim 4, wherein the second correcting moving frame further includes a plurality of supported cylindrical portions to move the second correcting moving frame, the plurality of supported cylindrical portions being slidably supported by end portions of the second guide shaft.
10. The intermediate movable device according to claim 4 , further comprising:
a plurality of driving magnets fixed to the base frame; and
a circuit board mounted on a front surface of the second correcting moving frame, the circuit board including
a plurality of driving coils facing the plurality of driving magnets, and
a plurality of hall sensors to detect the position of the first correcting moving frame and the second correcting moving frame.
11. The intermediate movable device according to claim 10 , wherein the plurality of driving coils and plurality of driving magnets perform blur correction by receiving driving currents to form a thrusting force in a predetermined direction to move the first correcting moving frame and the second correcting moving frame.
12. The intermediate movable device according to claim 10 , wherein a first driving coil of the plurality of driving coils is positioned parallel to the first shaft support and a second driving coil of the plurality of driving coils is positioned parallel to the second shaft support.
13. The intermediate movable device according to claim 10 , wherein a perimeter of the circumferential surface of the base body includes a first flat portion parallel to the first shaft support and a second flat portion below the first flat parallel portion.
14. The intermediate movable device according to claim 13 , wherein one of the plurality of driving coils is mounted parallel to the first flat portion.
15. The intermediate movable device according to claim 13 , wherein one of the plurality of hall sensors is arranged closer to the second flat portion than any of the plurality of driving coils.
16. The intermediate movable device according to claim 13 , wherein the intermediate movable device is connected to a linear guide having
a circumferential surface with a hole formed at a midsection, and
a plurality of guide projections protruding from the perimeter of the circumferential surface.
17. The intermediate movable device according to claim 16 , wherein one of the plurality of guide projections is positioned between the plurality of driving coils and the first and second flat portions.
18. The intermediate movable device according to claim 16, wherein the plurality of guide projections are uniformly spaced about the circumferential surface of the linear guide.
19. An intermediate movable device of an image capture apparatus, comprising:
means for correcting a focal position, including
means for moving a first correcting moving frame, the first correcting moving frame having a hole formed at a midsection on a side of the first correcting moving frame having a longest dimension, and
means for moving a second correcting moving frame, the second correcting moving frame having a lens mounted at a midsection on a side of the second correcting moving frame having a longest dimension,
means for supporting the first correcting moving frame at a position along the optical axis of the image capture apparatus.
20. An image capture apparatus comprising:
a lens barrel including
a predetermined lens group, and
a light adjusting device to adjust an amount of light captured in the lens barrel via the lens group,
a body to support the lens barrel; and
an intermediate movable device including
a base frame having a circumferential surface with a hole formed at a midsection on a side of the base frame having a longest dimension, and
a blur correction mechanism to correct a focal position, the blur correction mechanism including
a first correcting moving frame having a hole formed at a midsection on a side of the first correcting moving frame having a longest dimension, and
a second correcting moving frame having a lens mounted at a midsection on a side of the second correcting moving frame having a longest dimension.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/728,395 US20100171869A1 (en) | 2007-01-12 | 2010-03-22 | Light amount adjusting device and image capture apparatus |
US13/073,597 US8167508B2 (en) | 2007-01-12 | 2011-03-28 | Light amount adjusting device and image capture apparatus |
US13/432,885 US20120188644A1 (en) | 2007-01-12 | 2012-03-28 | Light amount adjusting device and image capture apparatus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007004737A JP4189771B2 (en) | 2007-01-12 | 2007-01-12 | Light amount adjusting device and imaging device |
JP2007-004737 | 2007-01-12 | ||
US11/965,259 US7699546B2 (en) | 2007-01-12 | 2007-12-27 | Light amount adjusting device and image capture apparatus |
US12/728,395 US20100171869A1 (en) | 2007-01-12 | 2010-03-22 | Light amount adjusting device and image capture apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/965,259 Continuation US7699546B2 (en) | 2007-01-12 | 2007-12-27 | Light amount adjusting device and image capture apparatus |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/073,597 Continuation US8167508B2 (en) | 2007-01-12 | 2011-03-28 | Light amount adjusting device and image capture apparatus |
Publications (1)
Publication Number | Publication Date |
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US20100171869A1 true US20100171869A1 (en) | 2010-07-08 |
Family
ID=39617871
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/965,259 Expired - Fee Related US7699546B2 (en) | 2007-01-12 | 2007-12-27 | Light amount adjusting device and image capture apparatus |
US12/728,395 Abandoned US20100171869A1 (en) | 2007-01-12 | 2010-03-22 | Light amount adjusting device and image capture apparatus |
US13/073,597 Active US8167508B2 (en) | 2007-01-12 | 2011-03-28 | Light amount adjusting device and image capture apparatus |
US13/432,885 Abandoned US20120188644A1 (en) | 2007-01-12 | 2012-03-28 | Light amount adjusting device and image capture apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/965,259 Expired - Fee Related US7699546B2 (en) | 2007-01-12 | 2007-12-27 | Light amount adjusting device and image capture apparatus |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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US13/073,597 Active US8167508B2 (en) | 2007-01-12 | 2011-03-28 | Light amount adjusting device and image capture apparatus |
US13/432,885 Abandoned US20120188644A1 (en) | 2007-01-12 | 2012-03-28 | Light amount adjusting device and image capture apparatus |
Country Status (3)
Country | Link |
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US (4) | US7699546B2 (en) |
JP (1) | JP4189771B2 (en) |
CN (2) | CN101806984B (en) |
Families Citing this family (11)
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JP4189771B2 (en) * | 2007-01-12 | 2008-12-03 | ソニー株式会社 | Light amount adjusting device and imaging device |
US8159765B2 (en) * | 2009-03-05 | 2012-04-17 | Samsung Electronics Co., Ltd. | Barrel module and imaging apparatus including the same |
JP5025673B2 (en) * | 2009-03-10 | 2012-09-12 | セイコープレシジョン株式会社 | Blade driving device and optical apparatus |
US8411345B2 (en) * | 2009-05-01 | 2013-04-02 | Asia Optical International Ltd. | Shutter device with multi-stage diaphragm |
JP5517533B2 (en) * | 2009-09-08 | 2014-06-11 | キヤノン株式会社 | Shielding blade member and method for manufacturing shielding blade member |
EP2730974A4 (en) * | 2011-07-07 | 2015-10-21 | Canon Denshi Kk | Light quantity adjustment device and optical apparatus |
KR101259026B1 (en) * | 2011-12-02 | 2013-04-29 | 자화전자 주식회사 | Shutter apparatus for a camera |
US20160341975A1 (en) | 2015-05-21 | 2016-11-24 | Jahwa Electronics Co., Ltd. | Camera lens module |
CN109188643A (en) * | 2015-05-29 | 2019-01-11 | 磁化电子株式会社 | Camera lens module |
CN112433419B (en) * | 2017-02-24 | 2022-03-25 | 大立光电股份有限公司 | Shading sheet, optical lens group, imaging lens and electronic device |
JP6883467B2 (en) * | 2017-05-08 | 2021-06-09 | 日本電産サンキョー株式会社 | Optical unit with runout correction function |
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Also Published As
Publication number | Publication date |
---|---|
CN101221342A (en) | 2008-07-16 |
US20110222845A1 (en) | 2011-09-15 |
US20080170851A1 (en) | 2008-07-17 |
CN101221342B (en) | 2010-06-02 |
US20120188644A1 (en) | 2012-07-26 |
CN101806984A (en) | 2010-08-18 |
CN101806984B (en) | 2011-12-21 |
US7699546B2 (en) | 2010-04-20 |
JP4189771B2 (en) | 2008-12-03 |
JP2008170794A (en) | 2008-07-24 |
US8167508B2 (en) | 2012-05-01 |
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Legal Events
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