CN100580543C - Electronic camera - Google Patents
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- CN100580543C CN100580543C CN200510067681A CN200510067681A CN100580543C CN 100580543 C CN100580543 C CN 100580543C CN 200510067681 A CN200510067681 A CN 200510067681A CN 200510067681 A CN200510067681 A CN 200510067681A CN 100580543 C CN100580543 C CN 100580543C
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- catoptron
- blade
- drive mechanism
- driving force
- mirror
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Abstract
As a shutter release button is pressed down, a front end portion of a sequence drive lever moves toward the rear side and, as a result, a mirror-up lever is caused to rotate to the right by the force applied from a mirror up spring. In this state, a mirror drive end presses a mirror drive pin upward to raise a main mirror. In addition, a shutter drive end comes in contact with a shutter drive boss at a switching lever to push the shutter drive boss upward, thereby pulling the shutter blades downward. During a reset operation, the front end portion moves to the front side causing the mirror-up lever to rotate to the left. The main mirror is thus lowered. Since the switching lever is caused to rotate to the right with the force applied from a switching lever reset spring, the shutter blades are pulled upward to shield an opening.
Description
The patented claim of institute's reference
The present invention requires the right of priority to following patented claim, and the content that they are disclosed is incorporated herein by reference: the Japanese patent application No.2005-020092 that the Japanese patent application No.2004-128563 that on April 23rd, 2004 submitted to and on January 27th, 2005 submit to.
Technical field
The present invention relates to a kind of Electrofax, it is obtained picture signal by forming by the making body image on the solid-state image capture element.
Background technology
Known a kind of Electrofax in correlation technique, it has the solid-state image capture element that is made of CCD, and it reads the electric charge that is stored among the CCD and the electric charge that these are read is like this recorded in the recording medium as image information.In the Electrofax of this CCD that comprises specific types such as frame transmission type CCD or two field interlacing reading type CCD, need CCD under the shading state, to carry out reading to electric charge.In the Electrofax of the CCD with other type, also needing CCD to carry out under the state of shading in a similar fashion reads, thereby do like this is in order to prevent that effectively so-called conditions of streaking from obtaining higher picture quality, and conditions of streaking is meant that the electric charge that overflows enters the streak line that delivery unit and the vertical direction in the plane of delineation produce light from the CCD pixel.The Electrofax that discloses in Japan patent disclosure No.H11-122542 co-pending comprises a tripper that is used for one group of blade of opening/closing, for solving this demand, before charge storage begins, image capturing component is not subjected to rayed always, in the process of charge storage, open the photograph opening, in case finish charge storage, make image capturing component not be subjected to rayed once more.
Above-mentioned Electrofax comprises a plurality of bars and analog and a plurality of spring that is used to drive blade, thus can in Electrofax, be used in combination in the correlation technique to the focal plane shutter device.Before shooting operation begins, the power that antagonistic springs such as these bars apply and remain on their initial position.In case shooting operation begins, open shutter thereby discharge those bars that have been held in succession.After charge storage was finished, bar etc. reset to initial position and cut out shutter thus.Except described a plurality of bars and spring, Electrofax in this correlation technique need comprise that for example parts such as driving cam come driving stem and spring, cause the number of required parts just bigger like this, thereby will cause and relevant problems such as cost and parts installing space.
Summary of the invention
The Electrofax of first aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; A drive source, its output is used for driving the driving force of catoptron; A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With a fast door drive mechanism, it makes blade carry out opening operation by the driving force of using mirror drive mechanism to be used for to rise catoptron.
The shutter device of the Electrofax of second aspect comprises according to the present invention: one group of blade, thereby their execution opening enter a kind of state in closed condition and the open mode, in off position, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With a fast door drive mechanism, it makes blade carry out opening operation by the driving force of using mirror drive mechanism to be used for to rise catoptron, mirror drive mechanism catoptron from be driven into upwards position to upper/lower positions, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image.Fast door drive mechanism comprises that is opened a part, and it makes blade carry out opening operation by driving force is passed to blade from mirror drive mechanism.
Mirror driving device according to the Electrofax of third aspect of the present invention comprises: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With a mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces.Mirror drive mechanism comprises a driving member, driving member passes to fast door drive mechanism to the driving force that is used to rise catoptron, thereby fast door drive mechanism makes one group of blade carry out opening operation being directed to image capturing component by the making body image by the driving force of using mirror drive mechanism to be used for to rise catoptron.
In the Electrofax aspect first, preferably be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at catoptron.Can be put aside by the fast door drive mechanism of driving force utilization of mirror drive mechanism rise catoptron by use makes blade follow the driving force that catoptron is operated the execution shutoff operation downwards.
In the mirror driving device aspect the 3rd, preferably be actuated to actual a moment before taking position upwards from the catoptron that switches to position upwards to upper/lower positions, mirror drive mechanism passes to fast door drive mechanism to the driving force that is used for rising catoptron.
The Electrofax of the 4th aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, thereby it is outside being directed to image capturing component by the making body image in position upwards catoptron to be placed on the photograph light path by the making body image; One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; A drive source, its output is used for driving the driving force of catoptron; A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With a fast door drive mechanism, it makes blade carry out shutoff operation by the driving force of using mirror drive mechanism to be used for to reduce catoptron.
The shutter device of the Electrofax of the 5th aspect comprises according to the present invention: one group of blade, thereby their execution opening enter a kind of state in closed condition and the open mode, in off position, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With a fast door drive mechanism, it makes blade carry out shutoff operation by the driving force of using mirror drive mechanism to be used for to reduce catoptron, mirror drive mechanism is driven into catoptron to upper/lower positions from the position that makes progress, in the position that makes progress thereby catoptron is placed on outside permission of photograph light path and is given image capturing component, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder by the making body image by the making body image transfer.Fast door drive mechanism comprises a closing member, and it makes blade carry out shutoff operation by driving force is passed to blade from mirror drive mechanism.
The mirror driving device of the Electrofax of the 6th aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With a mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces.Mirror drive mechanism comprises a driving member, driving member passes to fast door drive mechanism to the driving force that is used to reduce catoptron, makes image capturing component not be subjected to rayed thereby the driving force that fast door drive mechanism uses mirror drive mechanism to be used for reducing catoptron makes one group of blade carry out shutoff operation.
In the Electrofax aspect the 4th, be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at catoptron.Can be put aside by the fast door drive mechanism of driving force utilization of mirror drive mechanism reduction catoptron by use makes blade follow the upwards driving force of operation execution opening operation of catoptron.
The Electrofax of the 7th aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder by the making body image, can be thereby catoptron is placed on that the photograph light path is outside being given image capturing component by the making body image transfer in position upwards; One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; A drive source, its output is used for driving the driving force of catoptron; A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With a fast door drive mechanism, the driving force that it uses mirror drive mechanism to be used for rising catoptron makes blade carry out opening operation, and the driving force of using mirror drive mechanism to be used for reducing catoptron makes blade carry out shutoff operation.
The shutter device of the Electrofax of the 8th aspect comprises according to the present invention: one group of blade, thereby their execution opening enter a kind of state in closed condition and the open mode, in off position, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With a fast door drive mechanism, thereby it by the driving force of using mirror drive mechanism to be used for to rise catoptron make blade carry out opening operation mirror drive to position upwards, in the position that makes progress thereby catoptron is placed on outside permission of photograph light path and is given image capturing component by the making body image transfer, thereby fast door drive mechanism by the driving force of using mirror drive mechanism to be used for to reduce catoptron make blade carry out shutoff operation mirror drive to upper/lower positions, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder by the making body image.Fast door drive mechanism comprises an opening/closing spare, and opening/closing spare makes blade carry out opening by driving force is passed to blade from mirror drive mechanism.
The mirror driving device of the Electrofax of the 9th aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With a mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces.Mirror drive mechanism comprises a driving member, the driving force that driving member is used for rising the driving force of catoptron to mirror drive mechanism and is used for reducing catoptron passes to fast door drive mechanism, thereby the driving force that fast door drive mechanism is used for rising catoptron by use makes one group of blade carry out opening operation being directed to image capturing component by the making body image, makes image capturing component not be subjected to rayed thereby the driving force that fast door drive mechanism is used for reducing catoptron by use makes blade carry out shutoff operation.
In the Electrofax aspect the 7th, preferably be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at reflection mirror component.
In the mirror driving device aspect the 9th, be actuated to actual a moment before taking position upwards from the catoptron that switches to position upwards to upper/lower positions, mirror drive mechanism can begin the driving force that is used for rising catoptron is passed to fast door drive mechanism.
In aspect second, the 5th and the 8th in the shutter device of any one aspect, fast door drive mechanism may further include an enlarger, when driving force when mirror drive mechanism passes to blade, the size that enlarger is input to the driving force on it by amplification makes the blade executable operations.
The Electrofax of the tenth aspect comprises according to the present invention: a catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, thereby it is outside being directed to image capturing component by the making body image in position upwards catoptron to be placed on the photograph light path by the making body image; One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; Make progress the signal output in start signal and the downward start signal of catoptron of a drive source, the catoptron that its response inputs to it is used for driving the driving force of catoptron; A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; A fast door drive mechanism, it makes blade carry out opening operation by first driving force of using mirror drive mechanism to be used for to rise catoptron, and by using second driving force different with first driving force to make blade execution shutoff operation; With an actuating mechanism, its response inputs to its enabling signal and utilizes second driving force to begin the shutoff operation of blade before the operation downwards at the catoptron of beginning catoptron.
In the Electrofax aspect the tenth, preferably by using first driving force to put aside second driving force.If while downward start signal of output reflector and enabling signal, actuating mechanism can begin the shutoff operation of blade before mirror drive mechanism reduces catoptron.Preferred actuating mechanism comprises a compound magnet that is made of permanent magnet and solenoid.
Description of drawings
Fig. 1 is the skeleton view of the Electrofax realized in the first embodiment of the invention;
The skeleton view of Fig. 2 shows reflection mirror case, aperture device and tripper;
Fig. 3 is another skeleton view that reflection mirror case, aperture device and tripper is shown;
Fig. 4 A is the reflection mirror case before shooting operation begins and the side view of tripper, Fig. 4 B be discharged fast behind the door the reflection mirror case and the side view of tripper;
Fig. 5 is the skeleton view of aperture device;
Fig. 6 shows the relation between the rotation phase that shooting operation begins front sequence driving stem and cam, wherein Fig. 6 A shows the order driving stem of observing (direction from Fig. 5 shown in the arrow A is observed) from the bottom side of camera body, and Fig. 6 B shows the order driving stem of observing (direction from Fig. 5 shown in the arrow B is observed) from the top side of camera body;
Fig. 7 shows the relation between the rotation phase that discharges fast order driving stem behind the door and cam, wherein Fig. 7 A shows the order driving stem of observing (direction from Fig. 5 shown in the arrow A is observed) from the bottom side of camera body 1, and Fig. 7 B shows the order driving stem of observing (direction from Fig. 5 shown in the arrow B is observed) from the top side of camera body;
Fig. 8 A is the front view of tripper, and its split shed is not subjected to rayed, and Fig. 8 B is the rear view of the inside of tripper, has wherein removed the shutter cover plate;
Fig. 9 A is the front view of tripper, and wherein opening is in not shading state, and Fig. 9 B is the rear view of the inside of tripper, has wherein removed the shutter cover plate;
Figure 10 represents the Electrofax realized in the variant of first embodiment of the present invention, Figure 10 A be illustrated in shooting operation before beginning the reflection mirror case and the side view of tripper, Figure 10 B be illustrated in discharged fast behind the door the reflection mirror case and the side view of tripper;
Figure 11 is the Electrofax of realizing in another variant of first embodiment of the present invention, Figure 11 A be illustrated in shooting operation before beginning the reflection mirror case and the side view of tripper, Figure 11 B be illustrated in discharged fast behind the door the reflection mirror case and the side view of tripper;
Figure 12 is the skeleton view of reflection mirror case, aperture device and the tripper realized in second embodiment;
Figure 13 is another skeleton view of reflection mirror case, aperture device and tripper;
Figure 14 is the reflection mirror case before shooting operation begins and the side view of tripper;
Figure 15 be discharged fast behind the door the reflection mirror case and the side view of tripper;
Figure 16 is the reflection mirror case of that time after reset operation begins and the side view of tripper;
Figure 17 is the skeleton view of aperture device;
Figure 18 shows the relation between the rotation phase that shooting operation begins front sequence driving stem and cam, wherein Figure 18 A shows the order driving stem of observing (direction from Figure 17 shown in the arrow A is observed) from the bottom side of camera body, and Figure 18 B shows the order driving stem of observing (direction from Figure 17 shown in the arrow B is observed) from the top side of camera body;
Figure 19 shows the relation between the rotation phase that discharges fast order driving stem behind the door and cam, wherein Figure 19 A shows the order driving stem of observing (direction from Figure 17 shown in the arrow A is observed) from the bottom side of camera body, and Figure 19 B shows the order driving stem of observing (direction from Figure 17 shown in the arrow B is observed) from the top side of camera body;
Figure 20 A is the front view of tripper, and its split shed is not subjected to rayed, and Figure 20 B is the rear view of the inside of tripper, has wherein removed the shutter cover plate;
Figure 21 A is the front view of tripper, and wherein opening is in not shading state, and Figure 21 B is the rear view of the inside of tripper, has wherein removed the shutter cover plate.
Embodiment
First embodiment
One-piece construction
Explain the Electrofax of realizing in the first embodiment of the invention referring to figs. 1 to 9.Fig. 1 is the single lens reflex type camera body 1 of the Electrofax realized in the first embodiment of the invention and the skeleton view of photographic lens 2, and wherein photographic lens 2 is installed on the camera body 1.The control circuit 101 of the CCD5 of shutter release button 4, composing images capture element and control camera various piece is placed on the camera body 1.Reference number 301 expression photograph light paths are directed to CCD5 by what photographic lens 2 obtained by the making body image through 301 of photograph light paths.
In this embodiment in the Electrofax of Shi Xianing, control the length of exposure cycle, the time span of control signal control charge storage in CCD5 that electronic shutter provides according to control circuit 101 by so-called electronic shutter.When photographic lens 2 was installed on the camera body 1, the contact portion 323a of camera lens sidelight circle bar 3 and camera sidelight circle bar 323 contacted with each other.Thereby camera sidelight circle bar 323 drives camera lens sidelight circle bar 3 and obtains specific f-number.Should note in the explanation of present embodiment, camera body 1 front side that photographic lens 2 is installed is called the front side, camera body 1 rear side of placing CCD5 is called rear side.
The skeleton view of Fig. 2 and Fig. 3 shows reflection mirror case, aperture device and the tripper that is built in the camera body 1.In addition, Fig. 4 A and Fig. 4 B have provided the side view of reflection mirror case and tripper, and wherein Fig. 4 A shows the state of shooting operation before beginning, and Fig. 4 B shows the state after shutter discharges.Placing principal reflection mirror 321 (seeing Fig. 2 and 3) in reflection mirror case 300 inside.Bar 324 and aperture driving stem 325 that axle 326 is placed on the reflection side surface of mirror case 300 and aperture interlocking lever 323, make progress catoptron are installed in rotation on the axle 326.In addition, the back is installed in aperture control gear 200 and the tripper of describing in detail 400 on the reflection mirror case 300.
Drive principal reflection mirror 321 between the two positions, these two positions are to the upper/lower positions and the position that makes progress, take to be directed to the view finder (not shown) to the upper/lower positions handle by the making body image in photograph light path 301, the position of taking in photograph light path 301 outsides to make progress is to allow being given CCD5 by the making body image transfer.Principal reflection mirror 321 utilizes mirror axis 321a to be supported on rotationally on the reflection mirror case 300, when the clockwise direction that makes the downward spring of catoptron 322 in figure was applied to power on the principal reflection mirror 321, principal reflection mirror 321 remained on (catoptron is to upper/lower positions) in the reflector vessel (not shown) with about 45 ° pitch angle.When making of the being described further below bar 324 that catoptron makes progress drives the mirror drive pin 321b that forms principal reflection mirror 321 whole parts, make principal reflection mirror 321 along counterclockwise from catoptron to upper/lower positions upwards swing to take the catoptron position that makes progress.One end of the downward spring of catoptron 322 is remained on make on the bar 324 that catoptron makes progress, its other end then remains on the mirror drive pin 321b of principal reflection mirror 321, as mentioned above, make on the downward spring of catoptron 322 clockwise direction in the drawings and apply power to principal reflection mirror 321.
The clockwise direction of spring 327 in the figure applies power to the aperture interlocking lever 323 of control photographic lens 2 place's apertures, thus the f-number that the aperture bar 3 at photographic lens 2 places of contact portion 323a drive installation on camera body 1 by utilizing it obtains being scheduled to.When catoptron is in the reduction state of shooting operation before beginning, the bar contact portion 323b of aperture interlocking lever 323 contacts with the bar contact portion 325a of aperture driving stem 325 with restriction aperture interlocking lever 323 clockwise moving (turning right) in the figure, and it just remains on the aperture settings at the photographic lens 2 places position, angle in open mode like this.In addition, making in the operating process that catoptron makes progress, under the control of performed aperture, thereby bar contact portion 323c and back contacts the transmission bar of the aperture device 200 described in detail aperture interlocking lever 323 remained on and make the aperture realization at photographic lens 2 places be scheduled to the position, angle of f-number.
The aperture driving stem 325 that drives aperture interlocking lever 323 is connected with aperture interlocking lever 323 by spring 327, also is connected with reflection mirror case 300 by spring 328.When the left side drives the fore-end 218b of the order driving stem 218 that will describe in detail the back in Fig. 4 A, the fore-end 218b of order driving stem 218 makes the clockwise direction of aperture driving stem 325 in the figure rotate, so just by spring 327 along aperture closing direction (clockwise direction in the figure) driving aperture interlocking lever 323.In addition, when the fore-end 218b of right side driving in Fig. 4 B order driving stem 218, spring 328 is just opened direction (counter clockwise direction in the figure) with the aperture interlocking lever 323 that contacts with bar contact portion 325a along aperture resets aperture driving stem 325.
The bar 324 that use makes progress catoptron drives and is placed on opening/closing bar 420 and rising and the reduction principal reflection mirror 321 of back with tripper 400 places of detailed description, and the bar 324 that catoptron is made progress comprises mirror drive end 324a and shutter drive end 324b.The spring 331 that catoptron is made progress applies power along the clockwise direction among the figure to the bar 324 that catoptron is made progress, and the fore-end 218b of the order driving stem 218 that will describe in detail with the back regulates it along position that clockwise direction among the figure turns to.When to the fore-end 218b of Fig. 4 A left side driving order driving stem 218, thereby the spring 331 that catoptron is made progress makes bar 324 that catoptron makes progress rotate with its mirror drive end 324a along the clockwise direction among the figure and drives mirror drive pin 321b so that principal reflection mirror 321 is along counterclockwise upwards rotating to upper/lower positions from catoptron, and opens fast gate flap with the shutter driving lug boss 421 that its shutter drive end 324b driving is placed on switch lever 420 places at tripper 400 places.When to the fore-end 218b of Fig. 4 B right side driving order driving stem 218, the power that the spring 331 that the fore-end 218b opposing of order driving stem 218 makes progress catoptron applies makes the counter clockwise direction rotation in the figure of bar 324 that catoptron makes progress.
Fig. 5 is the skeleton view of aperture device 200.Aperture device 200 is made of control substrate 230 and driving substrate 290, and the both has the various parts that are placed on it.In control substrate 230, placing the various parts that are used for controlling f-number.Above-mentioned control substrate 230, the various parts relevant with aperture device, ejector return pin 208, order driving stem 218, cam 220 and lid substrate 250 are installed in and drive in the substrate 290.
Although do not provide detailed explanation, but the order driving stem that the back will be described in detail 218 drives ejector return pin 208 makes aperture control gear 200 reset, thereby ejector return pin 208 axially is being supported and can freely rotating on an axle that is placed in the driving substrate 290.
Enable to rotate at axial support order driving stem 218 with respect to the axle 295 that is placed on the lower end side that drives substrate 290.Fig. 6 A and 6B show at shooting operation and begin relation between the rotation phase of front sequence driving stem 218 and cam 220.In addition, Fig. 7 A and 7B show the relation between the rotation phase that discharges fast order driving stem 218 behind the door and cam 220.Fig. 6 A and 7A show the order driving stem 218 that (direction from Fig. 5 shown in the arrow A) observes from the bottom side of camera body 1, and Fig. 6 B and 7B show the order driving stem 218 that the top side (direction from Fig. 5 shown in the arrow B) from camera body 1 is observed.
Two roller 219a and 219b are placed on the order driving stem 218.Along with the rotation of cam 220, pressure is applied on roller 219a and the 219b, and order driving stem 218 rotates around axle 295.Arm 218d (see figure 5) is placed on the order driving stem 218 and makes arm 218d upwards rise towards the upside that drives substrate 290.Therefore, mobile fore-end 218b the moving that is converted to order driving stem 218 from arm 218d of cam 220 to bar 324 that catoptron is made progress and aperture driving stem 325.In addition, on order driving stem 218, be formed with extension 218c.When this extension 218c engages with the extension 208d at aforesaid ejector return pin 208 places, make aperture control gear 200 reset thereby just make ejector return pin 208 rotate.
Thereby making cam 220 can rotate and cover substrate 250 at the axle 294 place's axial support cams 220 that drive substrate 290 keeps cam 220 to prevent its slip.Cam 220 forms an integral unit, and it comprises gear parts 221 and cam portion 223 (see figure 5)s that constitute cam face 222 with the interlocking of gear (not shown).The rotation of CD-ROM drive motor 122 is given cam 220 (seeing Fig. 2 and 3) by unshowned gear transmission.Should note control circuit 101 controlling and driving motors 122.
Fig. 8 A and 8B and Fig. 9 A and 9B show tripper 400.Tripper 400 comprises one group of blade, and blade is carried out opening and is not subjected to light-struck closed condition (seeing Fig. 8 A and 8B) or handle to be directed to the open mode (seeing Fig. 9 A and 9B) of CCD5 by the making body image to switch to CCD5.Tripper 400 when Fig. 8 A and 9A show and observe from the front, Fig. 8 B and 9B then all show when observing from behind and the inside of tripper 400 when the back removed the shutter cover plate 490 that describes in detail.Tripper 400 is installed in the rear side of reflection mirror case 300.
Axially be supported on switch lever 420 on the switch lever rotation axis 412 and utilizing switch lever back-moving spring 401 power to be applied on the switch lever 420 along the clockwise direction among Fig. 8 A and the 9A.Place shutter driving lug boss 421 at the place, an end of switch lever 420 front sides and make it vertical rise.Placing the cogged gear parts 422 of wherein cutting at the other end of switch lever 420.Gear parts 422 is interlocked the gear parts that vane drive bar 430 places that describe in detail exist with the back.
Set length and the position that shutter drives lug boss 421 and guarantee when tripper 400 is installed on the reflection mirror case 300, the shutter drive end 324b that makes the bar 324 that catoptron makes progress of shutter driving lug boss and rotation contacts.When the shutter drive end 324b that makes the bar 324 that catoptron makes progress that rotates upwards pressed shutter to drive lug boss 421, counter clockwise direction in Fig. 8 A and 9A was rotated with regard to making power that switch lever 420 opposings apply from switch lever back-moving spring 401.
Comprise the cogged gear parts 431 of wherein cutting at the vane drive bar 430 of axial support on vane drive bar rotation axis 413, along the arm 432 that radially extends laterally from center of rotation (vane drive bar rotation axis 413), be placed on the vane drive pin 433 of arm 432 rear sides.As previously mentioned, the gear parts at vane drive bar 430 places 431 is interlocked with the gear parts 422 at switch lever 420 places, so switch lever 420 and vane drive bar 430 rotate together by interlocking.The front end of vane drive pin 433 passes with circular arc and is formed on the vertical hole 416 on the substrate 410 and is assembled in the pilot hole 441 at blade principal arm 440 places that describe in detail later.Because vane drive pin 433 passes vertical hole 416, the slewing area of vane drive bar 430 and switch lever 420 is regulated according to the arc length in vertical hole 416, promptly regulates the scope that allows vane drive pin 433 to move.
Placing four blades 460 that axial support is driven from arm 450 by blade principal arm 440 and blade from arm 450, with interlocking state at the blade of blade from the arm rotation axis 415 at the blade principal arm 440 on the blade principal arm rotation axis 414, axial support at the rear side of substrate 410.That is to say that the arm mechanism of the known technology that constitutes from arm 450 with blade principal arm 440 and blade drives four blades 460 with interlocking state, thereby cover or do not cover opening 411 on the substrate 410 and the opening 491 on the shutter cover plate 490.When the interior side drive in hole 416 along the longitudinal is assemblied in vane drive pin 433 in the pilot hole 441 that is formed in the blade principal arm 440, just make blade principal arm 440 rotate around blade principal arm rotation axis 414.
When the inboard in hole 416 upwards drives the vane drive pin 433 that is assemblied in the pilot hole 441 along the longitudinal, just make blade principal arm 440 and blade rotate to the left side (to the right side of Fig. 8 B) of Fig. 8 A, thereby so just upwards draw blade 460 to cover opening 411 and 491 from arm 450.When the inboard in hole 416 drives the vane drive pin 433 that is assemblied in the pilot hole 441 downwards along the longitudinal, just make blade principal arm 440 and blade rotate to the right side (to the left side of Fig. 8 B) of Fig. 8 A, do not cover opening 411 and 491 thereby so just pull down blade 460 from arm 450.
Because switch lever back-moving spring 401 applies power for switch lever 420 in the clockwise direction of Fig. 8 A and 9A, so just applied power to vane drive bar 430 on the counter clockwise direction in Fig. 8 A and 9A with switch lever 420 interlockings.Therefore, the power that applies by switch lever back-moving spring 401 inboard in the hole 416 driven vane drive pin 433 that makes progress along the longitudinal.So just upwards draw blade 460, so just covered opening 411 and 491.Should note shown in Fig. 8 A and 8B, when vane drive pin 433 contacts with the upper part 416a in vertical hole 416, just regulate moving upward of vane drive pin 433.When vane drive pin 433 contacted with upper part 416a, blade 460 had covered opening 411 and 491 (seeing Fig. 8 A and 8B).
When the shutter drive end 324b that makes the bar 324 that catoptron makes progress that has rotated presses shutter to drive lug boss 421 and makes power that switch lever 420 opposings are applied by opening/closing bar back-moving spring 401 and when the counter clockwise direction of Fig. 8 A and 9A is rotated, just make that the vane drive bars 430 with switch lever 420 interlockings rotate along the clockwise direction of Fig. 8 A and 9A.Therefore, the inboard driven vane drive pin 433 downwards in hole 416 along the longitudinal, thus make arm 440 and 450 right sides (to the left side of Fig. 8 B) rotate and pull down blade 460 to Fig. 8 A.Should note, shown in Fig. 9 A and 9B, although vane drive pin 433 can move in vertical 416 inside, hole with till the end portion 416b in vertical hole 416 contacts always, just at vane drive pin 433 with before end portion 416b contacts, thereby with respect to the lower end of opening 411 and 491 and further pull down four blades 460 and do not cover opening 411 and 491.
That is to say that when the bar 324 that catoptron is made progress rotated, the tripper of realizing among this embodiment 400 carried out following operation.Should notice that the back also makes the position, angle of the bar 324 that catoptron makes progress provide independent explanation to how changing.
(1) if the bar 324 that catoptron is made progress takes to make that shutter drive end 324b does not push down the position, angle that shutter drives lug boss 421, the power that applies of switch lever back-moving spring 401 just makes bar 420 and 430 rotate so, and blade 460 covers the opening 411 and 491 (seeing Fig. 8 A and 8B) of tripper 400.
(2) thus rotate when upwards pushing shutter driving lug boss 421 when the bar 324 that catoptron is made progress with shutter drive end 324b, rotate with regard to making switch lever 420 resist the power that applies by switch lever back-moving spring 401, and pull down the blade 460 of tripper 400 thus.
(3) when shutter drive end 324b further when shutter drives lug boss 421 and exerts pressure, just the lower end with respect to opening 411 and 491 further pulls down blade 460, so just shown in Fig. 9 A and 9B, no longer cover the opening 411 and 491 of tripper 400.
Since place each independent bar 420 and 430 and each independent arm 440 and 450 make them take the position, angle shown in Fig. 8 A, 8B and Fig. 9 A, the 9B, shutter drives in the predetermined angle scope around the switch lever rotation axis 412 of the tripper 400 that lug boss 421 just can realize in the present embodiment along the direction of approximate vertical mobile.Should notice that as mentioned above shutter drives lug boss 421 and can the motion angle scope regulate according to the arc length in vertical hole 416, promptly regulate the scope that allows 433 motions of vane drive pin.
In the tripper that has adopted said structure, move consistently with approximate vertical that the shutter at switch lever 420 places drives lug boss 421, blade 460 is carried out opening.In other words, in the structure that tripper adopts, the driving force that the shutter drive end 324b of the bar 324 that catoptron makes progress is applied is directly delivered on the blade 460.
On tripper 400, drive lug boss 421 and drive the amplitude that shutters drive lug bosses 421 thereby make the shutter drive end 324b of the bar 324 that catoptron makes progress push down shutter at switch lever 420 places by amplification, blade 460 switches to open position or off-position.That is to say, must be bigger to the distance of switch lever rotation axis 412 distance setting than driving lug boss 421 from shutter from the gear parts 422 of switch lever 420 to the switch lever rotation axis 412 that constitutes center of rotation, and must be bigger to the distance of vane drive bar rotation axis 413 than the gear parts 431 from vane drive bar 430 the distance setting from vane drive pin 433 to the vane drive bar rotation axis 413 that constitutes center of rotation.Even shutter drive end 324b just drives shutter more by a small margin and drives lug boss like this, vane drive pin 433 is the bigger amplitude of the medial movement in hole 416 along the longitudinal also.
Shooting operation
The performed operation of each separate part is given an explaination during now to the Electrofax photographic images realized in first embodiment.Fig. 6 A shows the state that begins front sequence driving stem 218 and cam 220 at shooting operation.By making cam face 222 push down roller 219a, driving order driving stem 218 fix in position then that makes it to turn left at first.Shown in the side view of camera body 1 among Fig. 4 A, to the fore-end 218b of the preceding side drive order driving stem 218 of camera body 1 fix in position then.
The bar 324 that the power that fore-end 218b opposing is applied by the spring 331 that catoptron is made progress makes progress catoptron rotates to Fig. 4 A left side.Under this state, mirror drive end 324a does not contact with the mirror drive pin 321b of principal reflection mirror 321, and shutter drive end 324b does not contact with the shutter driving lug boss 421 of switch lever 420.Therefore, principal reflection mirror 321 takes catoptron to upper/lower positions, and blade 460 covers opening 411 and 491 (seeing Fig. 8 A and 8B).
When shutter release button 4 was pressed in response from shutter release switch (not shown) input shutter release signal, control circuit 101 drove CD-ROM drive motor 122.When CD-ROM drive motor 122 is rotated, thus just make cam 220 turn left about 180 ° from the state exchange shown in Fig. 6 A to the state shown in Fig. 7 A.After entering the state shown in Fig. 7 A, CD-ROM drive motor 122 stops.Driving stem 218 makes it turn right thereby cam face 222 is pressed in the last driving order of roller 219b.
Thereby the fore-end 218b of order driving stem 218 moves by side to the state exchange of rear side from Fig. 4 A to the state shown in Fig. 4 B before camera body 1, and makes aperture driving stem 325 rotate to the right side of Fig. 4 A.When making that aperture driving stem 325 turns right,, the power that spring 327 applies begins to reduce lens aperture from open mode thereby making aperture interlocking lever 323 begin to rotate.
In case fore-end 218b moves to rear side, the bar 324 that the power that the spring 331 that catoptron is made progress applies just makes catoptron make progress rotates to the right side of Fig. 4 A.When the bar 324 that catoptron is made progress rotated to the right, mirror drive end 324a at first contacted with the mirror drive pin 321b of principal reflection mirror 321, thereby along counterclockwise beginning to rotate principal reflection mirror 321 from catoptron to upper/lower positions.When the bar that catoptron is made progress further turned right, when promptly proceeding to make the operation that catoptron makes progress, principal reflection mirror 321 almost turned to the catoptron position that makes progress, and shutter drive end 324b drives lug boss 421 with the shutter at switch lever 420 places and contacts.When the bar 324 that catoptron is made progress further turned right, shutter drive end 324b upwards pushed shutter and drives lug boss 421, so just pulled down blade 460 as mentioned above.
As mentioned above, when the bar 324 that catoptron is made progress is finished when making the operation that catoptron makes progress, promptly be in the state after the shutter shown in Fig. 4 B discharges, just the lower end with respect to opening 411 and 491 further pulls down blade 460, so just shown in Fig. 9 A and 9B, no longer cover opening 411 and 491.
Behind above-mentioned shutter release operation, be controlled at charge storage among the CCD5 with the electronic shutter of control circuit 101 control, and catch image thus.Because CD-ROM drive motor 122 is in halted state when carrying out charge storage in CCD5, cam 220 and order driving stem 218 also are in halted state.For this reason, the power that the spring 331 that utilization makes progress catoptron applies has turned to bar 324 fix in position that catoptron is made progress on right side, and wherein its shutter drive end 324b upwards pushes shutter and drives lug boss 421.In case finish the charge storage in CCD5 and caught image, just carry out reset operation and make each parts reset.The explained later reset operation.
In the reset operation process, drive CD-ROM drive motor 122 once more.When CD-ROM drive motor 122 is rotated, just make be in the cam in the state 220 shown in Fig. 7 A turn left about 180 ° and it stops before the state shown in recovery Fig. 6 A.Utilizing cam face 222 to push down roller 219a driving order driving stem 218 makes it to turn left.At this moment thereby fore-end 218b moves to the state of front side from Fig. 4 B from the rear side of camera body 1 and switches to state among Fig. 4 A, and rotate in the left side of bar 324 in Fig. 4 B that catoptron is made progress.
When the bar 324 that catoptron is made progress turned left, an end remains on the other end applied force that makes the downward spring of catoptron 322 that makes bar 324 places that catoptron makes progress just made principal reflection mirror 321 rotate and reset to catoptron thus to upper/lower positions to the right side of Fig. 4 B.The power that utilization is applied by switch lever back-moving spring 401 drives the shutter that has been subjected to the shutter drive end 324b extruding that makes the bar 324 that catoptron makes progress, and to drive lug boss 421 be switch lever 420, thereby along with turning left of the bar 324 that catoptron is made progress covered opening 411 and 491 with blade 460.When the bar 324 that catoptron is made progress further turned left, blade 460 just covered opening 411 and 491 fully, so switch lever 420 stops and shutter drive end 324b separates with shutter driving lug boss 421.When the bar 324 that catoptron is made progress further turns left, just to have finished catoptron and operated downwards, principal reflection mirror 321 stops to turn right and mirror drive end 324a separates with mirror drive pin 321b.
In case reset operation finishes, and turns left them thereby the power that spring 328 applies just makes aperture interlocking lever 323 and aperture driving stem 325 all reset, and so just lens aperture is set in open mode.
The Electrofax of realizing among above-mentioned first embodiment has been realized following advantage.
(1) drive lug boss 421 by the shutter with the shutter drive end 324b driving switch bar 420 that makes the bar 324 that catoptron makes progress and drive blade 460, the bar 324 that catoptron is made progress transmits the driving force that catoptron is made progress to principal reflection mirror 321.Therefore, needn't use the actuator or the complex drive mechanism that are used for the shutter driving just can drive blade 460, drive the required part count of blade 460 thereby reduced in a large number, this just can provide Electrofax, tripper and the mirror drive mechanism that has reduced production cost effectively, and can use the free space in the miniaturization unit effectively.
(2) when rising catoptron, the shutter that upwards pushes switch lever 420 places by the power that applies with the shutter drive end 324b opposing switch lever back-moving spring 401 that makes the bar 324 that catoptron makes progress drives lug boss 421 and drives blade 460, and savings is driven into blade 460 the savings power of off-position.When stored charge in CCD5, the bar 324 that catoptron is made progress stops, and shutter drive end 324b upwards pushes shutter driving lug boss 421 continuously so that maintain the savings power that blade 460 is driven into off-position.In making the downward operating process of catoptron, the power that switch lever back-moving spring 401 applies (savings power) thus the turning left of bar 324 that makes shutter drive end 324b follow catoptron is made progress covered opening 411 and 491 with blade 460.So the power that does not need special mechanism antagonistic spring to apply keeps driven bar, and has realized adopting the tripper of simple structure, thereby has reduced manufacturing cost and can use free space in the miniaturized system effectively.
(3) because the shutter that this structure makes the opening of blade 460 to follow to be placed on switch lever 420 places drives the approximate vertical of lug boss 421 moves, the driving force that the shutter drive end 324b of the bar 324 that catoptron makes progress is applied is directly delivered on the blade 460.So just can drive blade 460, thereby make and provide power can take simple structure for tripper 400 with the catoptron side mechanism of driving blade 460 by simply the moving of shutter drive end 324b that makes the bar 324 that catoptron makes progress.Owing to only utilizing design to make improvements the catoptron side mechanism that realizes slightly, so can reduce the research and development expense to the catoptron side mechanism in the correlation technique.
(4) the shutter drive end 324b that makes the bar 324 that catoptron makes progress by amplification drives the extruding of lug boss 421 to the shutter at switch lever 420 places and the size of driving is come opening/closing blade 460.Like this can enough drive force blades 460 that catoptron is made progress, just can simplified design work.In addition, can not provide the very parts of large driving force, so can reduce manufacturing cost and be convenient to effectively utilize the finite space in the miniaturized system owing on driving force will be provided to catoptron side on it, do not need to be provided with one.
(5) bar 324 that catoptron is made progress is used to drive principal reflection mirror 321 and is used to make blade 460 to carry out opening.Owing to can utilize the catoptron side mechanism that in correlation technique, uses to satisfy these purposes, only need in Component Design, carry out the cost benefit that minimum improvement realizes height.
(6) blade at a moment before the EO that catoptron is made progress 460 begins to open, and the blade at a moment after the downward operation of catoptron is begun 460 begins to close.Because having minimized CCD5 beyond during the charge storage like this is exposed to by the time span under the making body light, just can minimize by caused decrease in image quality degree such as conditions of streakings effectively, thus make must write down can be reached very high picture quality by the making body image.
The variant of first embodiment
(1) in the explanation that provides in the above, although the power that applies with the spring 331 that catoptron is made progress in the operating process that catoptron is made progress drives the bar 324 that catoptron is made progress, but the present invention is not limited to this example, but also can carry out the operation that catoptron is made progress with the driving force that CD-ROM drive motor 122 produces.That is to say, can drive the bar 324 that catoptron is made progress with fore-end 218b to the front side and the order driving stem 218 of back side oscillation.In a kind of like this structure, when making the bar 324 that catoptron makes progress, order driving stem 218 extruding that drive when CD-ROM drive motor 122 carry out operation and the shutter opening operation that catoptron is made progress.
(2) although in the explanation that provides in the above, the driving force that the bar 324 that utilization makes progress catoptron rises principal reflection mirror 321 makes blade 460 carry out opening operation, the power that applies with switch lever back-moving spring 401 makes blade 460 carry out shutoff operation, but the present invention is not limited to this example.For example, instead, can use the driving force that is used to reduce principal reflection mirror 321 to make blade 460 carry out shutoff operations, can put aside and be used for making blade 460 to carry out the savings power of opening operations and can use the power of holding to make blade 460 carry out opening operations.An a kind of like this example of application has been shown in Figure 10 A and 10B.Rise principal reflection mirror 321 with spring 522 along the power that catoptron rise direction applies, make the mirror drive end 524a of the downward bar of catoptron 524 reduce principal reflection mirror 321.
Be applied on the tripper 600 along the steering handle power opposite with the spring of switch lever back-moving spring 401 equivalences in the above-mentioned explanation (below be referred to as shutter open spring) with top direction of giving the power that applies in the explanation.Therefore, thus the power that makes progress is applied to shutter to be driven and to use shutter to open spring on the lug boss 421 to make blade 460 carry out opening operations.The shutter drive end 524b of the bar 524 that shutter driving lug boss 421 is downward with making catoptron is connected to each other by absorbing mechanism 501 and is in the same place, and absorbing mechanism 501 absorbs any overload of the shutter drive end 524b that makes the downward bar of catoptron 524 places.
Shown in Figure 10 A, before shooting operation began, the fore-end 218b of the order driving stem 218 of side shifting turned left the downward bar of catoptron 524 forward.Under this state, shutter drive end 524b drives shutter downwards by absorbing mechanism 501 and drives lug boss 421, so just makes blade 460 carry out shutoff operation.
Shown in Figure 10 B, after shutter discharged, the fore-end 218b of order driving stem 218 is side shifting backward, thereby the power that spring 331 applies turns right the downward bar of catoptron 524.Therefore, adopt the power that applies by spring 522 to make principal reflection mirror 321 rise.When shutter drive end 524b moved up, shutter is opened the spring applied force made blade 460 carry out opening operation.
(3) although by the drive source that use driving principal reflection mirror 321 make blade 460 carry out opening operation or shutoff operations in the explanation that provides in the above, the invention is not restricted to this example, can replace making blade 460 carry out opening by using other form with the drive source that drives principal reflection mirror 321.For example in conjunction with not comprising the tripper 400 of switch lever back-moving spring 401, drive lug boss 421 rising catoptrons thereby can upwards push shutter with the shutter drive end 324b of the bar 324 that catoptron is made progress as the Electrofax among this embodiment.In order to reduce catoptron, can utilize to be used for being absorbed in the absorbing mechanism (absorbing mechanism 501 as the aforementioned) that makes any overload that the downward operating process of catoptron occurs and to use shutter drive end 324b to push shutter downwards to drive lug boss 421.An a kind of like this example of application has been shown in Figure 11 A and 11B.
Downwards the extruding shutter spring 333 that drives lug boss 421 is placed on and makes on the bar 324 that catoptron makes progress when the bar 324 that catoptron is made progress turns left.One end of spring 333 is locked at and makes on the bar 324 that catoptron makes progress, and the scope that spring 333 other ends can move is regulated by being placed on the pin 324c that makes on the bar 324 that catoptron makes progress.Thereby should note front end further crooked shutter driving lug boss 421 that pushes in the drawing paper of the other end of spring 333 downwards.In the variant shown in Figure 11 A and the 11B, as mentioned above, do not comprise switch lever back-moving spring 401 in the tripper 400, therefore as described below, be to utilize the external force that is applied on the shutter driving lug boss 421 to drive blade 460 to carry out opening.
Before shooting operation began, shown in Figure 11 A, spring 333 pushed shutter driving lug boss 421 downwards and blade 460 covers opening 411 and 491.In the operating process that catoptron is made progress, be similar to the above embodiments, with shutter drive end 324b shutter is driven making progress of lug boss 421 and push the opening operation (seeing Figure 11 B) that realizes blade 460.
When reset operation begins, fore-end 218b with order driving stem 218 drives the bar 324 that catoptron is made progress, the other end of spring 333 contacts with shutter driving lug boss 421 a moment after the bar 324 that catoptron is made progress begins to turn left, and has begun shutter is driven the downward driving of lug boss 421 thus.Also when turning left, finish the shutoff operation of blade 460 at the bar 324 that catoptron is made progress, so just stopped the decline of shutter driving lug boss 421.Utilize the bending of spring 333 to absorb the bar 324 that catoptron the is made progress caused rotating drive amplitude (overload) that further turns left.
(4) in the explanation that provides,, the invention is not restricted to this example in the above although make not only raise principal reflection mirror 321 but also open blade 460 of bar that catoptron makes progress 324.For example, can be different from the shutter that power that the parts that make the bar 324 that catoptron makes progress apply the spring 331 that catoptron is made progress passes to switch lever 420 places by use and drive lug boss 421.
(5) in the explanation that provides in the above, although with the bar 324 that catoptron is made progress or make the downward bar of catoptron 524 drive shutters to drive lug bosses 421, the invention is not restricted to this example.For example, can instead drive shutter with parts that are placed on principal reflection mirror 321 places and drive lug boss 421, these parts are by operating with principal reflection mirror 321 interlockings.
(6) can be used in combination the specific characteristic of present embodiment and each variant.
First above-mentioned embodiment and its variant can use the actuator or the complex drive mechanism that are used for the shutter driving to drive blade, so just can reduce blade significantly and drive needed part count, and the Electrofax of being realized, tripper and mirror drive mechanism have realized the reduction of manufacturing cost, and are convenient to efficiently use the finite space available in the miniaturized system.
Second embodiment
The Electrofax of realizing in the explained later second embodiment of the invention.The one-piece construction of the Electrofax of realizing among second embodiment and the similar that is shown in the Electrofax of realizing among first embodiment of Fig. 1.
The skeleton view of Figure 12 and Figure 13 shows reflection mirror case, aperture device and the tripper that is built in the camera body 1.In addition, Figure 14 to 16 has provided the side view of reflection mirror case and tripper, wherein Figure 14 shows the state of shooting operation before beginning, and Figure 15 shows the state after shutter discharges, and Figure 16 shows the state that begins that time behind the reset operation soon behind the door that discharges.Placing principal reflection mirror 321 (seeing Figure 12 and 13) in reflection mirror case 300 inside.Bar 324, aperture driving stem 325 and shutter that axle 326 is placed on the reflection side surface of mirror case 300 and aperture interlocking lever 323, make progress catoptron hold power bar 341 and are installed in rotation on the axle 326.In addition, the back is installed in aperture control gear 200 and the tripper of describing in detail 400 on the reflection mirror case 300.
Drive principal reflection mirror 321 between the two positions, these two positions are to the upper/lower positions and the position that makes progress, take to be directed to the view finder (not shown) to the upper/lower positions handle by the making body image in photograph light path 301, the position of taking in photograph light path 301 outsides to make progress is to allow being given CCD5 by the making body image transfer.Principal reflection mirror 321 utilizes mirror axis 321a to be supported on rotationally on the reflection mirror case 300, when the clockwise direction that makes the downward spring of catoptron 322 in figure was applied to power on the principal reflection mirror 321, principal reflection mirror 321 remained on (catoptron is to upper/lower positions) in the reflector vessel (not shown) with about 45 ° pitch angle.When making of the being described further below bar 324 that catoptron makes progress drives the mirror drive pin 321b that forms principal reflection mirror 321 whole parts, make principal reflection mirror 321 along counterclockwise upwards rotating to take the catoptron position that makes progress to upper/lower positions from catoptron.One end of the downward spring of catoptron 322 is remained on make on the bar 324 that catoptron makes progress, its other end then remains on the mirror drive pin 321b of principal reflection mirror 321, as mentioned above, make on the downward spring of catoptron 322 clockwise direction in the drawings and apply power to principal reflection mirror 321.
The clockwise direction of spring 327 in the figure applies power to the aperture interlocking lever 323 of control photographic lens 2 place's apertures, thus the f-number that the aperture bar 3 at photographic lens 2 places of contact portion 323a drive installation on camera body by utilizing it obtains being scheduled to.When catoptron be in shooting operation before beginning to upper/lower positions the time, the bar contact portion 323b of aperture interlocking lever 323 contacts with the bar contact portion 325a of aperture driving stem 325 with the clockwise rotation (turning right) in the figure of restriction aperture interlocking lever 323, and it just remains on the aperture settings at the photographic lens 2 places position, angle in open mode like this.In addition, making in the operating process that catoptron makes progress, under the control of performed aperture, thereby bar contact portion 323c and back contacts the transmission bar of the aperture device 200 described in detail aperture interlocking lever 323 remained on and make the aperture realization at photographic lens 2 places be scheduled to the position, angle of f-number.
The aperture driving stem 325 that drives aperture interlocking lever 323 is connected with aperture interlocking lever 323 by spring 327, also is connected with reflection mirror case 300 by spring 328.When the left side drives the fore-end 218b of the order driving stem 218 that will describe in detail the back in Figure 14, the fore-end 218b of order driving stem 218 makes the clockwise direction of aperture driving stem 325 in the figure rotate, so just by spring 327 along aperture closing direction (clockwise direction in the figure) driving aperture interlocking lever 323.In addition, when the fore-end 218b of right side driving in Figure 15 and 16 order driving stem 218, spring 328 is just opened direction (counter clockwise direction in the figure) with the aperture interlocking lever 323 that contacts with bar contact portion 325a along aperture resets aperture driving stem 325.
The bar 324 that use makes progress catoptron drives shutter described later and holds power bar 341, and raises and reduction principal reflection mirror 321, and the bar 324 that catoptron is made progress comprises that mirror drive end 324a and movable core keep end 324d.The spring 331 that catoptron is made progress applies power along the clockwise direction among Figure 14 to 16 to the bar 324 that catoptron is made progress, and the fore-end 218b of the order driving stem 218 that will describe in detail with the back regulates it along position that clockwise direction among the figure turns to.When to the fore-end 218b of Figure 14 left side driving order driving stem 218, the spring 331 that catoptron is made progress makes the bar 324 that catoptron makes progress rotate along the clockwise direction among the figure, thus with its mirror drive end 324a drive mirror drive pin 321b so that principal reflection mirror 321 along counterclockwise from catoptron to upwards rotation of upper/lower positions.When to the fore-end 218b of Figure 16 right side driving order driving stem 218, the power that the fore-end 218b opposing of order driving stem 218 is applied by the spring 331 that catoptron is made progress makes the counter clockwise direction rotation in the figure of bar 324 that catoptron makes progress.When the counter clockwise direction of the bar 324 that catoptron is made progress in figure rotated, make the downward spring of catoptron 322 drive mirror drive pin 321b downwards, thereby the clockwise direction in figure is driven into catoptron to principal reflection mirror 321 to upper/lower positions.
Be used for driving and be placed on the back and the shutter of the switch lever 420 at tripper 400 places described in detail is held power bar 341 comprise shutter drive end 341a.Compound magnet 350 is installed in shutter and holds on the power bar 341.Compound magnet 350 comprises permanent magnet 351, drive coil 352 and movable core 353, and movable core 353 inserts in the through hole of drive coil bobbin, and drive coil 352 is on the drive coil bobbin.
One end of the movable core 353 of the magnetic force that permanent magnet 351 applies in permanent magnet attraction insertion through hole.When predetermined steering handle voltage is applied on the drive coil 352, just produced the magnetic field of offsetting the magnetic field (magnetic force) that permanent magnet 351 causes, so just discharge magnetic force and remained on movable core 353 on the permanent magnet.In case the movable core 353 that has discharged separates predetermined distance with permanent magnet 351, even drive coil 352 is in not excited state so, movable core 353 also still keeps separating with permanent magnet 351.The other end at movable core 353 has formed the engaging groove part 353a that extends along circumferentially.This engaging groove part 353a keeps end 324d to engage with the movable core of the bar 324 that catoptron is made progress.
Shown in Figure 14 to 16, pin 311 stretches out and holds the position, angle that power bar 341 these pin 311 adjusting shutters when counterclockwise rotating hold power bar 341 when shutter at the side surfaces of reflection mirror case 300.As shown in figure 14, when the fore-end 218b of use order driving stem 218 rotated the counter clockwise direction of bar 324 in figure that catoptron makes progress, the movable core 353 that keeps end 324d to be bonded together with movable core just was subjected to the attraction of permanent magnet 351.In other words, as shown in figure 14, when the counter clockwise direction of the bar 324 that catoptron is made progress in figure rotated, the end portion of compound magnet 350 contacted with pin 311 and movable core 353 is subjected to the attraction of permanent magnet 351.
Shown in Figure 14 and 15, when compound magnet 350 utilized magnetic force to keep movable core 353, the bar 324 that shutter holds power bar 341 and catoptron is made progress was engaged with each other together by compound magnet 350 and does as a whole being activated together and rotate.Therefore, when to the fore-end 218b of the left side of Figure 14 driving order driving stem 218, the spring 331 that catoptron is made progress just makes bar 324 that catoptron makes progress and shutter hold the clockwise direction rotation of power bar 341 in the figure.
When the spring 331 that catoptron is made progress makes bar 324 that catoptron makes progress and shutter hold the clockwise direction of power bar 341 in figure to rotate, drive mirror drive pin 321b with mirror drive end 324a, thereby make principal reflection mirror 321 along counterclockwise upwards rotating (seeing Figure 14 and 15) to upper/lower positions from catoptron.Thereby at this moment and the shutter that rotates together of the bar 324 that catoptron is made progress hold and drive the shutter that is placed on switch lever 420 places on the tripper 400 on the direction that power bar 341 makes progress in the drawings and drive lug boss 421 and as the back is described in detail, open blade.Even permanent magnet 351 and movable core 353 can not be separated from each other yet in the time of should noting being provided with dynamics that permanent magnet 351 keeps movable cores 353 makes and bar 324 that catoptron is made progress rotates together shutter and hold power bar 341 and drive shutters and drive lug bosses 421.
As shown in figure 15, driving shutter when hold the direction that power bar 341 makes progress in the drawings at shutter on drives in the lug boss 421 when predetermined steering handle voltage is applied on the drive coil 352, just discharged the movable core 353 that remains on the permanent magnet 351, like this, shutter holds power bar 341 and just can rotate with respect to the bar 324 that catoptron is made progress along the counter clockwise direction among the figure.As shown in figure 16, as the back is described in detail, power is applied to shutter along the downward direction among the figure and drives on the lug boss 421, and 421 downward extruding shutter drive end 341a make shutter hold power bar 341 along counterclockwise rotating thereby shutter drives lug boss.
Figure 17 is the skeleton view of aperture device 200.Aperture device 200 is made of control substrate 230 and driving substrate 290, and the both has the various parts that are placed on it.In control substrate 230, placing the various parts that are used for controlling f-number.Above-mentioned control substrate 230, the various parts relevant with aperture device, transmission bar 205, ejector return pin 208, order driving stem 218, cam 220 and lid substrate 250 are installed in and drive in the substrate 290.
Thereby passing to aperture device 200, the amplitude of transmitting 205 drivings of bar aperture interlocking lever 323 make aperture device 200 can survey the f-number at photographic lens 2 places.Make it freely to rotate thereby be placed on the axle that drives in the substrate 290 at axial support transmission bar 205, the lower end 205a that places it makes it to contact with the bar contact portion 323c of aperture interlocking lever 323.Detection to the f-number at photographic lens 2 places does not lay down a definition, and this is surveyed by aperture device 200 and carries out.
Although do not provide detailed explanation, but the order driving stem that the back will be described in detail 218 drives ejector return pin 208 makes aperture control gear 200 reset, thereby ejector return pin 208 axially is being supported and can freely rotating on an axle that is placed in the driving substrate 290.
Enable to rotate at axial support order driving stem 218 with respect to the axle 295 that is placed on the lower end side that drives substrate 290.Figure 18 A and 18B show at shooting operation and begin relation between the rotation phase of front sequence driving stem 218 and cam 220.In addition, Figure 19 A and 19B show the relation between the rotation phase that discharges fast order driving stem 218 behind the door and cam 220.Figure 18 A and 19A show the order driving stem 218 that (direction from Figure 17 shown in the arrow A) observes from the bottom side of camera body 1, and Figure 18 B and 19B show the order driving stem 218 that the top side (direction from Figure 17 shown in the arrow B) from camera body 1 is observed.
In aperture control gear 200, the function of order driving stem 218, cam 220 etc. and front are about function class that first embodiment explained seemingly.
Figure 20 A and 20B and Figure 21 A and 21B show tripper 400.Tripper 400 comprises one group of blade, and blade is carried out opening and is not subjected to light-struck closed condition (seeing Figure 20 A and 20B) or handle to be directed to the open mode (seeing Figure 21 A and 21B) of CCD5 by the making body image to switch to CCD5.Tripper 400 when Figure 20 A and 21A show and observe from the front, Figure 20 B and 21B then all show when rear side is observed and the inside of tripper 400 when the back removed the shutter cover plate 490 that describes in detail.Tripper 400 is installed in the rear side of reflection mirror case 300.
Axially be supported on switch lever 420 on the switch lever rotation axis 412 and utilizing switch lever back-moving spring 401 power to be applied on the switch lever 420 along the clockwise direction among Figure 20 A and the 21A.Place shutter driving lug boss 421 at the place, an end of switch lever 420 front sides and make it vertical rise.Placing the cogged gear parts 422 of wherein cutting at the other end of switch lever 420.Gear parts 422 is interlocked with the gear parts that is placed on vane drive bar 430 places that the back will be described in detail.
Length and the position of setting shutter driving lug boss 421 guarantee that shutter drives lug boss and contacts with the shutter drive end 341a that the shutter of rotation holds power bar 341 when tripper 400 is installed on the reflection mirror case 300.When the shutter drive end 341a that holds power bar 341 when the shutter that rotates upwards pressed shutter to drive lug boss 421, counter clockwise direction in Figure 20 A and 21A was rotated with regard to making power that switch lever 420 opposings apply from switch lever back-moving spring 401.
Comprise the cogged gear parts 431 of wherein cutting at the vane drive bar 430 of axial support on vane drive bar rotation axis 413, along the arm 432 that radially extends laterally from center of rotation (vane drive bar rotation axis 413), be placed on the vane drive pin 433 of arm 432 rear sides.As previously mentioned, the gear parts at vane drive bar 430 places 431 is interlocked with the gear parts 422 at switch lever 420 places, so switch lever 420 and vane drive bar 430 rotate together by interlocking.The front end of vane drive pin 433 passes with circular arc and is formed on the vertical hole 416 on the substrate 410 and is assembled in the pilot hole 441 of back with the blade principal arm 440 described in detail.Because vane drive pin 433 passes vertical hole 416, the slewing area of vane drive bar 430 and switch lever 420 is regulated according to the arc length in vertical hole 416, promptly regulates the scope that allows vane drive pin 433 to move.
Placing four blades 460 that axial support is driven from arm 450 by blade principal arm 440 and blade from arm 450, with interlocking state at the blade of blade from the arm rotation axis 415 at the blade principal arm 440 on the blade principal arm rotation axis 414, axial support at the rear side of substrate 410.That is to say that the arm mechanism of the known technology that constitutes from arm 450 with blade principal arm 440 and blade drives four blades 460 with interlocking state, thereby cover or do not cover opening 411 on the substrate 410 and the opening 491 on the shutter cover plate 490.When the interior side drive in hole 416 along the longitudinal is assemblied in vane drive pin 433 in the pilot hole 441 that is formed in the blade principal arm 440, just make blade principal arm 440 rotate around blade principal arm rotation axis 414.
When the inboard in hole 416 upwards drives the vane drive pin 433 that is assemblied in the pilot hole 441 along the longitudinal, just make blade principal arm 440 and blade rotate to the left side (to the right side of Figure 20 B) of Figure 20 A, thereby so just upwards draw blade 460 to cover opening 411 and 491 from arm 450.When the inboard in hole 416 drives the vane drive pin 433 that is assemblied in the pilot hole 441 downwards along the longitudinal, just make blade principal arm 440 and blade rotate to the right side (to the left side of Figure 20 B) of Figure 20 A, do not cover opening 411 and 491 thereby so just pull down blade 460 from arm 450.
Because switch lever back-moving spring 401 applies power for switch lever 420 in the clockwise direction of Figure 20 A and 21A, so just applied power to vane drive bar 430 on the counter clockwise direction in Figure 20 A and 21A with switch lever 420 interlockings.Therefore, the power that applies by switch lever back-moving spring 401 inboard in the hole 416 driven vane drive pin 433 that makes progress along the longitudinal.So just upwards draw blade 460, so just covered opening 411 and 491.Should note shown in Figure 20 A and 20B, when vane drive pin 433 contacts with the upper part 416a in vertical hole 416, just regulate moving upward of vane drive pin 433.When vane drive pin 433 contacted with upper part 416a, blade 460 had covered opening 411 and 491 (seeing Figure 20 A and 20B).
The shutter drive end 341a that holds power bar 341 when the shutter that has rotated presses shutter to drive lug boss 421 and makes power that switch lever 420 opposings are applied by switch lever back-moving spring 401 and when the counter clockwise direction of Figure 20 A and 21A is rotated, and just makes that the vane drive bars 430 with switch lever 420 interlockings rotate along the clockwise direction of Figure 20 A and 21A.Therefore, the inboard driven vane drive pin 433 downwards in hole 416 along the longitudinal, thus make arm 440 and 450 right sides (to the left side of Figure 20 B) rotate and pull down blade 460 to Figure 20 A.Should note, shown in Figure 21 A and 21B, although vane drive pin 433 can move in vertical 416 inside, hole with till the end portion 416b in vertical hole 416 contacts always, just at vane drive pin 433 with before end portion 416b contacts, thereby with respect to the lower end of opening 411 and 491 and further pull down four blades 460 and do not cover opening 411 and 491.
That is to say that when shutter held 341 rotations of power bar, the tripper of realizing 400 carried out following operation in second embodiment.Should notice that the back has also provided independent explanation to how changing the position, angle that shutter holds power bar 341.
(1) if holding power bar 341, shutter takes to make that shutter drive end 341a does not push down the position, angle that shutter drives lug boss 421, the power that applies of switch lever back-moving spring 401 just makes bar 420 and 430 rotate so, and blade 460 covers the opening 411 and 491 (seeing Figure 20 A and 20B) of tripper 400.
(2) thus rotate when upwards pushing shutter driving lug boss 421 when shutter holds power bar 341 with shutter drive end 341a, rotate with regard to making switch lever 420 resist the power that applies by switch lever back-moving spring 401, and pull down the blade 460 of tripper 400 thus.
(3) when shutter drive end 341a further when shutter drives lug boss 421 and exerts pressure, just the lower end with respect to opening 411 and 491 further pulls down blade 460, so just shown in Figure 21 A and 21B, no longer cover the opening 411 and 491 of tripper 400.
Since place each independent bar 420 and 430 and each independent arm 440 and 450 make them take the position, angle shown in Figure 20 A, 20B and Figure 21 A, the 21B, shutter drives in the particular angular range around the switch lever rotation axis 412 of the tripper 400 that lug boss 421 just can realize in second embodiment along the direction of approximate vertical mobile.Should notice that as mentioned above shutter drives lug boss 421 and can the motion angle scope regulate according to the arc length in vertical hole 416, promptly regulate the scope that allows 433 motions of vane drive pin.
In said structure, move consistently with approximate vertical that the shutter at switch lever 420 places drives lug boss 421, blade 460 is carried out opening.In other words, in the Electrofax of in second embodiment, realizing, shutter holds the driving force that the shutter drive end 341a at power bar 341 places is applied, and promptly is delivered to by spring 331 applied forces that catoptron is made progress to make blade 460 carry out opening operations on the blade 460 and give the switch lever back-moving spring 401 savings power that drive blade 460 in the process of shutoff operation.
On tripper 400, thereby push down shutter at switch lever 420 places and drive lug boss 421 and drive the amplitude that shutters drive lug bosses 421 by amplifying shutter drive end 341a that shutter holds power bar 341, blade 460 switches to open position or off-position.That is to say, must be bigger to the distance of switch lever rotation axis 412 distance setting than driving lug boss 421 from shutter from the gear parts 422 of switch lever 420 to the switch lever rotation axis 412 that constitutes center of rotation, and must be bigger to the distance of vane drive bar rotation axis 413 than the gear parts 431 from vane drive bar 430 the distance setting from vane drive pin 433 to the vane drive bar rotation axis 413 that constitutes center of rotation.Even shutter drive end 341a just drives shutter drive end 341a more by a small margin like this, vane drive pin 433 is the bigger amplitude of the medial movement in hole 416 along the longitudinal also.
Shooting operation
The performed operation of each separate part is given an explaination during now to the Electrofax photographic images realized in second embodiment.Figure 18 A shows the state that begins front sequence driving stem 218 and cam 220 at shooting operation.By making cam face 222 push down roller 219a, driving order driving stem 218 fix in position then that makes it to turn left at first.As shown in figure 17, when observing from the side, to the fore-end 218b of the preceding side drive order driving stem 218 of camera body 1 fix in position then.
The bar 324 that the power that fore-end 218b opposing is applied by the spring 331 that catoptron is made progress makes progress catoptron rotates to Figure 14 left side.Under this state, mirror drive end 324a does not contact with the mirror drive pin 321b of principal reflection mirror 321, and shutter drive end 324b does not contact with the shutter driving lug boss 421 of switch lever 420.Therefore, principal reflection mirror 321 takes catoptron to upper/lower positions, and blade 460 covers opening 411 and 491 (seeing Figure 20 A and 20B).
When shutter release button 4 was pressed in response from shutter release switch (not shown) input shutter release signal, control circuit 101 drove CD-ROM drive motor 122.When CD-ROM drive motor 122 is rotated, thus just make cam 220 turn left about 180 ° from the state exchange shown in Figure 18 A to the state shown in Figure 19 A.After entering the state shown in Figure 19 A, CD-ROM drive motor 122 stops.Driving stem 218 makes it turn right thereby cam face 222 is pressed in the last driving order of roller 219b.
Thereby the fore-end 218b of order driving stem 218 from move by side to before the camera body 1 rear side from the state exchange shown in Figure 14 to the state shown in Figure 15, and make aperture driving stem 325 rotate to the right side of Figure 14.When making that aperture driving stem 325 rotates to the right,, the power that spring 327 applies begins to reduce lens aperture from open mode thereby making aperture interlocking lever 323 begin to rotate.
In case fore-end 218b moves to rear side, the bar 324 that the power that the spring 331 that catoptron is made progress applies just makes catoptron make progress rotates to the right side of Figure 14.Because compound magnet 350 is still keeping movable core 353 under this state, just make shutter hold power bar 341 and do as a whole turning right with the bar 324 that catoptron is made progress.When the bar 324 that catoptron is made progress and shutter held power bar 341 and turn right, mirror drive end 324a at first contacted with the mirror drive pin 321b of principal reflection mirror 321, thereby along counterclockwise beginning to rotate principal reflection mirror 321 from catoptron to upper/lower positions.When the bar that catoptron is made progress further turns right, when promptly proceeding to make the operation that catoptron makes progress, and when principal reflection mirror 321 almost turns to catoptron when making progress the position, shutter drive end 341a drives lug boss 421 with the shutter at switch lever 420 places and contacts.When the bar 324 that catoptron is made progress and shutter held power bar 341 and further turn right, shutter drive end 341a upwards pushed shutter and drives lug boss 421, so just pulls down blade 460 as mentioned above.
As mentioned above, when the bar 324 that catoptron is made progress is finished when making the operation that catoptron makes progress, promptly be in the state after shutter shown in Figure 15 discharges, just the lower end with respect to opening 411 and 491 further pulls down blade 460, so just shown in Figure 21 A and 21B, no longer cover opening 411 and 491.
Behind above-mentioned shutter release operation, be controlled at charge storage among the CCD5 with the electronic shutter of control circuit 101 control, and catch image thus.Because CD-ROM drive motor 122 is in halted state when carrying out charge storage in CCD5, cam 220 and order driving stem 218 also are in halted state.For this reason, the power that the spring 331 that utilization makes progress catoptron applies has turned to bar 324 fix in position that catoptron is made progress on right side, and shutter holds power bar 341 and also remains on halted state when its shutter drive end 341a upwards pushes shutter to drive lug boss 421.In case finish the charge storage in CCD5 and caught image, just carry out reset operation and make each parts reset.The explained later reset operation.
In order to carry out reset operation, be used for the drive signal and the pumping signal that is used for compound magnet 350 of CD-ROM drive motor 122 substantially simultaneously from control circuit 101 outputs.Because the pumping signal that control circuit 101 provides makes drive coil 352 be in excited state, permanent magnet 351 releasing activity iron cores 353.In addition, when the drive signal that provides of response control circuit 101 drove CD-ROM drive motor 122 once more, the bar 324 that catoptron is made progress with regard to driving order driving stem 218 began to turn left as the detailed description of back.
Export the back from control circuit 101 in pumping signal and begin to drive elapsed time length weak point than outputing to order driving stem 218 from control circuit 101 in the drive signal that is used for CD-ROM drive motor 122 to the permanent magnet 351 releasing activity iron cores 353 elapsed time length the compound magnet 350.Like this, before the bar 324 that the order driving stem 218 that is driven makes progress catoptron begins to turn left, the power that switch lever back-moving spring 401 applies makes shutter drive lug boss 421 to hold the shutter drive end 341a of power bar 341 to pressing down shutter, and blade 460 covers opening 411 and 491.That is to say, as shown in figure 16, before order driving stem 218 begins to turn left, just discharged the movable core 353 in the compound magnet 350, turn left thereby make shutter hold power bar 341.
When the driving of CD-ROM drive motor 122 restarts to respond the drive signal that control circuit 101 provides, be in the cam in the state 220 shown in Figure 19 A and turn left about 180 ° and recover the state shown in Figure 18 A, stop then.Cam face 222 is pressed in the last driving order of roller 219a driving stem 218 and makes it to turn left.At this moment fore-end 218b moves to front from the rear end side of camera body 1, thus from the state exchange shown in Figure 16 to the state shown in Figure 14, and the left side of bar 324 in Figure 16 that catoptron makes progress rotated.
When the bar 324 that catoptron is made progress begins to turn left, one end remains on the other end applied force that makes the downward spring of catoptron 322 that makes bar 324 places that catoptron makes progress just makes principal reflection mirror 321 rotate to the right side of Figure 16, and principal reflection mirror 321 is got back to the catoptron shown in Figure 14 to upper/lower positions thus.When the bar 324 that catoptron is made progress further turns left, just to have finished catoptron and operated downwards, principal reflection mirror 321 stops to turn right and mirror drive end 324a separates with mirror drive pin 321b.
Hold turning left of power bar 341 owing to regulate shutter with pin 311, along with turning left of the bar 324 that catoptron is made progress, the movable core 353 that hangs down is just pressed to permanent magnet 351 downwards.As shown in figure 14, in case the turning left of bar 324 that catoptron is made progress finished, movable core 353 just remains on the permanent magnet 351 once more.
In case reset operation finishes, the power that spring 328 applies just makes aperture interlocking lever 323 and aperture driving stem 325 all reset, thereby turns left them, so just lens aperture is set in open mode.
Realized following advantage by the Electrofax of realizing among above-mentioned second embodiment.
(1) shutter that makes bar 324 that catoptron makes progress and shutter hold power bar 341 driving switch bars 420 by rotation drives lug boss 421 and makes blade 460 carry out opening operations, wherein uses by applying spring 331 applied forces that catoptron is made progress that make the driving force that catoptron makes progress and rotates bar 324 and shutter that catoptron is made progress and hold power bar 341.In addition, before the bar 324 that catoptron is made progress begins to turn left, discharge the movable core 353 in the compound magnet 350, can turn left and utilize the power that applies by switch lever back-moving spring 401 to make blade 460 carry out opening operation with regard to making shutter hold power bar 341 like this.Because this structure does not need to use complex drive mechanism to drive shutter with specific timing, so just can reduce in a large number and drive the required part count of blade 460, thereby realize to reduce Electrofax, tripper and the mirror drive mechanism of manufacturing cost, and be convenient to use effectively the limited installing space in the miniaturized system.
(2) power of utilizing spring 331 that catoptron is made progress to apply applies the driving force that catoptron is made progress and rotates bar 324 and shutter that catoptron is made progress and hold power bar 341, the shutter that upwards pushes switch lever 420 places by their rotation drives lug boss 421, thereby make blade 460 carry out opening operations, and to switch lever back-moving spring 401 savings power as the drive source of the shutoff operation that is used for blade 460.Owing to can enough simple structures give switch lever back-moving spring 401 savings power, just can reduce the danger that tripper may lose efficacy significantly, thereby improve the reliability of Electrofax.
(3) when charge storage is in CCD5, upwards pushes shutter by the shutter drive end 341a that utilizes shutter to hold power bar 341 and drive lug boss 421 and keep shutters to hold power bar 341 keeping being used for making blade 460 to carry out the savings power of shutoff operations.Because this structure power that do not need special mechanism to come antagonistic spring to apply maintains the bar that is driven, and has just realized tripper by simple structure, so just can reduce manufacturing cost and be convenient to use effectively free space in the miniaturized system.
(4) although be used for the drive signal and the pumping signal that is used for compound magnet 350 of CD-ROM drive motor 122 substantially simultaneously from control circuit 101 outputs, using compound magnet 350 to make shutter hold power bar 341 before the bar 324 that catoptron is made progress begins to turn left can turn left.Like this, owing to begin to carry out shutoff operation, cover opening 411 and 491 that time after can the image capture operation that charge storage finishes and CCD5 place the carries out end in CCD5 at once at the bar 324 that catoptron the is made progress anterior shutter blade 460 that begins to turn left.Therefore having minimized CCD5 outside during the charge storage is exposed to by the time span under the making body light, just can minimize by caused decrease in image quality degree such as conditions of streakings effectively, thus make must write down can be reached very high picture quality by the making body image.
(5) since the shutter that this structure makes the opening of blade 460 to follow to be placed on switch lever 420 places drive lug boss 421 along the moving of approximate vertical direction, shutter holds the driving force that the shutter drive end 341a of power bar 341 applies and is directly delivered on the blade 460.So just can drive blade 460, thereby make and provide power can take simple structure for tripper 400 with the catoptron side mechanism of driving blade 460 by simply the moving of shutter drive end 341a that shutter holds power bar 341.Owing to only utilizing design to make improvements the catoptron side mechanism that realizes slightly, so can reduce the research and development expense to the catoptron side mechanism in the correlation technique.
(6) shutter drive end 341a that shutter holds power bar 341 drives the extruding of lug boss 421 to the shutter at switch lever 420 places and the size of driving is come opening/closing blade 460 by amplifying.Like this can enough drive force blades 460 that catoptron is made progress, can simplified design work.
(7) making bar 324 that catoptron makes progress and shutter hold power bar 341 is used to drive principal reflection mirror 321 and is used to drive blade 460 and carry out opening.Just can satisfy these purposes owing to only need that the catoptron side mechanism that uses in the correlation technique is carried out minimum improvement, thereby realize the cost benefit of height, these improvement comprise that for example adding shutter holds power bar 341 and compound magnet 350 etc.
The variant of second embodiment
(1) in the explanation that provides in the above, although compound magnet 350 is installed in shutter and holds on the power bar 341 and make the movable core of the bar 324 that catoptron makes progress keep end 324d to be fixed on the engaging groove part 353a place of movable core 353, the present invention is not limited to this example.For example, by putting upside down above-mentioned location arrangements, promptly can be installed in compound magnet 350 and make on the bar 324 that catoptron makes progress and the engaging groove part 353a of movable core 353 can be bonded on shutter and holds on the power bar 341.Thereby ideal situation is to minimize the moment of inertia that shutter holds power bar 341 places to guarantee enough fast response in the shutoff operation of blade 460.
(2) in the explanation that provides in the above, although the bar 324 that utilizes compound magnet 350 that shutter is held power bar 341 and catoptron is made progress keeps together and makes bar 324 that catoptron makes progress and shutter hold power bar 341 to do as a whole rotation together, the present invention is not limited to this example.For example, can replace compound magnet 350 to make shutter hold power bar 341 by the actuator that uses another kind of type and remain to and make on the bar 324 that catoptron makes progress, make the shutter that keeps together hold power bar 341 and bar 324 that catoptron is made progress is separated from each other by starting this actuator then.
(3) in the explanation that provides in the above, although come releasing activity iron core 353 by drive coil 352 power supplies of giving compound magnet when starting reset operation, the present invention is not limited to this example.For example, when blade 460 is carried out opening operation, drive movable core and make shutter hold power bar 341 and bar 324 that catoptron is made progress keeps together thereby can power, thereby and when blade 460 is carried out shutoff operations, can stop to power the releasing activity iron core to make shutter hold power bar 341 and bar 324 that catoptron is made progress is separated from each other to drive coil to drive coil.
(4) in the explanation that provides in the above, although discharge each other by the movable core in the compound magnet 350 353 is discharged the bar 324 that makes the shutter that combines hold power bar 341 and catoptron is made progress from permanent magnet 351, the invention is not restricted to this example.For example, can use a kind of actuator to replace compound magnet 350, this actuator can forward/backward drives the piston-like parts with movable core 353 equivalences.Using this actuator to replace in the structure of compound magnet 350, making bar 324 that catoptron makes progress and shutter hold power bar 341 when the piston-like parts are in retracted mode can be as a unitary rotation.In addition, when the piston-like parts stretched out, shutter held power bar 341 and can turn left with respect to the bar 324 that catoptron is made progress.
In above-mentioned structure, the driving force that is had when utilizing the piston-like parts to stretch out drives shutter downwards and drives lug boss 421, and blade 460 can be carried out shutoff operation.Because the driving force that is had when utilizing the piston-like parts to stretch out is closed blade 460, this structure does not need switch lever back-moving spring 401.
(5) in the explanation that provides, can carry out reset operation in the above, the invention is not restricted to this example although export drive signal that is used for CD-ROM drive motor 122 and the pumping signal that is used for compound magnet 350 substantially simultaneously from control circuit 101.As long as charge storage in CCD5 and image capture operation are covered opening 411 and opening 491 after finishing at once, promptly as long as can begin to move to catoptron blade 460 before upper/lower positions moves in principal reflection mirror 321 beginning covers opening 411 and 491, can be used for the drive signal of CD-ROM drive motor 122 in different time output and be used for the pumping signal of compound magnet 350.
As mentioned above, be provided with shortlyer in pumping signal from the control circuit 101 permanent magnet 351 releasing activity iron cores 353 elapsed time length of output back up to compound magnet 350 than beginning to drive elapsed time length from control circuit 101 outputs up to order driving stem 218 in the drive signal that is used for CD-ROM drive motor 122.Like this, consider that beginning driving in the drive signal output back that is used for CD-ROM drive motor 122 up to the order driving stem can occur postponing, and can earlier export the drive signal that is used for CD-ROM drive motor 122 from control circuit 101.Perhaps, thus control circuit 101 can at first export the pumping signal that is used for compound magnet 350 and be exposed to the decline that is prevented any degree of picture quality by the time span of making body light effectively by CCD5 outside being minimized in during the charge storage.At first whether output signal has all realized the advantage of present embodiment.
(6) can be used in combination the specific characteristic of present embodiment and each variant.
Second above-mentioned embodiment comprises: fast door drive mechanism, it makes blade carry out opening operation by using first driving force, first driving force is meant the driving force that rises catoptron with mirror drive mechanism, and by using second driving force different with first driving force to make blade carry out shutoff operation; With an actuating mechanism, actuating mechanism utilizes second driving force to begin the shutoff operation of blade before the operation downwards at the beginning catoptron.Needn't use actuator or complex drive mechanism to carry out shutter drives because this structure can drive blade, so can reduce to drive the required part count of blade significantly, and can provide a kind of Electrofax effectively with lower manufacturing cost thus, this camera is convenient to use effectively the limited free space in the miniaturized system, in case wherein charge storage finishes just to make image capturing component enter the shading state at once.
The above embodiments are some examples, need not depart from the spirit and scope of the present invention and just can carry out various improvement.
Claims (23)
1. Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image;
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image;
A drive source, its output is used for driving the driving force of catoptron;
A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With
A fast door drive mechanism, it passes to blade by the driving force that mirror drive mechanism is used for rise catoptron makes blade carry out opening operation.
2. Electrofax as claimed in claim 1, wherein:
Be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at catoptron.
3. Electrofax as claimed in claim 1, wherein:
Operate the driving force of carrying out shutoff operation downwards by using the fast door drive mechanism of driving force utilization that rises catoptron by mirror drive mechanism to put aside to make blade follow catoptron.
4. the shutter device of an Electrofax comprises:
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With
A fast door drive mechanism, it makes blade carry out opening operation by the driving force of using mirror drive mechanism to be used for to rise catoptron, mirror drive mechanism catoptron from be driven into upwards position to upper/lower positions, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder by the making body image, in the position that makes progress thereby catoptron is placed on outside permission of photograph light path and is given image capturing component by the making body image transfer, wherein:
Fast door drive mechanism comprises that is opened a part, and it makes blade carry out opening operation by driving force is passed to blade from mirror drive mechanism.
5. shutter device according to claim 4, wherein:
Fast door drive mechanism further comprises an enlarger, when driving force when mirror drive mechanism passes to blade, the size that enlarger is input to the driving force on it by amplification makes the blade executable operations.
6. the mirror driving device of an Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With
A mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces, wherein:
Mirror drive mechanism comprises a driving member, driving member passes to fast door drive mechanism to the driving force that is used to rise catoptron, makes this group blade carry out opening operation handle to be directed to image capturing component by the making body image thereby this fast door drive mechanism passes to one group of blade by the driving force that mirror drive mechanism is used for rise catoptron.
7. mirror driving device as claimed in claim 6, wherein:
Be actuated to actual a moment before taking position upwards from the catoptron that switches to position upwards to upper/lower positions, mirror drive mechanism passes to fast door drive mechanism to the driving force that is used for rising catoptron.
8. Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, thereby it is outside being directed to image capturing component by the making body image in position upwards catoptron to be placed on the photograph light path by the making body image;
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image;
A drive source, its output is used for driving the driving force of catoptron;
A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With
A fast door drive mechanism, it passes to blade by the driving force that mirror drive mechanism is used for reduce catoptron makes blade carry out shutoff operation.
9. Electrofax according to claim 8, wherein:
Be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at catoptron.
10. Electrofax according to claim 8, wherein:
By use the fast door drive mechanism of driving force utilization that reduces catoptron by mirror drive mechanism to put aside to make blade follow catoptron upwards operation carry out the driving force of opening operation.
11. the shutter device of an Electrofax comprises:
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With
A fast door drive mechanism, it makes blade carry out shutoff operation by the driving force of using mirror drive mechanism to be used for to reduce catoptron, mirror drive mechanism is driven into catoptron to upper/lower positions from the position that makes progress, in the position that makes progress thereby catoptron is placed on outside permission of photograph light path and is given image capturing component by the making body image transfer, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, wherein by the making body image:
Fast door drive mechanism comprises a closing member, and it makes blade carry out shutoff operation by driving force is passed to blade from mirror drive mechanism.
12. shutter device according to claim 11, wherein:
Fast door drive mechanism further comprises an enlarger, when driving force when mirror drive mechanism passes to blade, the size that enlarger is input to the driving force on it by amplification makes the blade executable operations.
13. the mirror driving device of an Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With
A mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces, wherein:
Mirror drive mechanism comprises a driving member, driving member passes to fast door drive mechanism to the driving force that is used to reduce catoptron, makes this group blade execution shutoff operation occlusion image capture element make it not to be subjected to rayed thereby this fast door drive mechanism passes to one group of blade by the driving force that mirror drive mechanism is used for reduce catoptron.
14. an Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, thereby it is outside being given image capturing component by the making body image transfer in position upwards catoptron to be placed on the photograph light path by the making body image;
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image;
A drive source, its output is used for driving the driving force of catoptron;
A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place; With
A fast door drive mechanism, it passes to blade by the driving force that mirror drive mechanism is used for rise catoptron makes blade carry out opening operation, and passes to blade by the driving force that mirror drive mechanism is used for reduce catoptron and make blade carry out shutoff operation.
15. Electrofax according to claim 14, wherein:
Be actuated to from switching to the opening operation that begins blade a moment before taking position upwards of the catoptron of position upwards to upper/lower positions, and taking moment of position upwards to finish the opening operation of blade at reflection mirror component.
16. the shutter device of an Electrofax comprises:
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image; With
A fast door drive mechanism, thereby it by the driving force of using mirror drive mechanism to be used for to rise catoptron make blade carry out opening operation mirror drive to position upwards, in the position that makes progress thereby catoptron is placed on outside permission of photograph light path and is given image capturing component by the making body image transfer, thereby fast door drive mechanism by the driving force of using mirror drive mechanism to be used for to reduce catoptron make blade carry out shutoff operation mirror drive to upper/lower positions, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, wherein by the making body image:
Fast door drive mechanism comprises an opening/closing spare, and opening/closing spare makes blade carry out opening by driving force is passed to blade from mirror drive mechanism.
17. shutter device according to claim 16, wherein:
Fast door drive mechanism further comprises an enlarger, when driving force when mirror drive mechanism passes to blade, the size that enlarger is input to the driving force on it by amplification makes the blade executable operations.
18. the mirror driving device of an Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, is being given image capturing component by the making body image transfer thereby catoptron is placed on outside permission of photograph light path in position upwards by the making body image; With
A mirror drive mechanism, it passes to catoptron to the driving force that the drive source place produces, wherein:
Mirror drive mechanism comprises a driving member, the driving force that driving member is used for rising the driving force of catoptron to mirror drive mechanism and is used for reducing catoptron passes to fast door drive mechanism, thereby fast door drive mechanism makes this group blade carry out opening operation being directed to image capturing component by the making body image by the driving force that is used for rising catoptron being passed to one group of blade, thereby fast door drive mechanism makes blade execution shutoff operation occlusion image capture element make it not to be subjected to rayed by the driving force that is used for reducing catoptron being passed to blade.
19. mirror driving device according to claim 18, wherein:
Be actuated to actual a moment before taking position upwards from the catoptron that switches to position upwards to upper/lower positions, mirror drive mechanism begins the driving force that is used for rising catoptron is passed to fast door drive mechanism.
20. an Electrofax comprises:
A catoptron, mirror drive to upper/lower positions with upwards on the position in the position, thereby to upper/lower positions catoptron is being placed in the photograph light path being directed to view finder, thereby it is outside being directed to image capturing component by the making body image in position upwards catoptron to be placed on the photograph light path by the making body image;
One group of blade, thereby their are carried out opening and enter a kind of state in closed condition and the open mode, in off position in, the occlusion image capture element makes it not to be subjected to rayed, in open mode, being directed to image capturing component by the making body image;
Make progress the signal output in start signal and the downward start signal of catoptron of a drive source, the catoptron that its response inputs to it is used for driving the driving force of catoptron;
A mirror drive mechanism, it passes to catoptron to the driving force that produces at the drive source place;
A fast door drive mechanism, it passes to blade by first driving force that mirror drive mechanism is used for rise catoptron makes blade carry out opening operation, and by using second driving force different with first driving force to make blade execution shutoff operation; With
An actuating mechanism, its response input to its enabling signal and utilize second driving force to begin the shutoff operation of blade before the operation downwards at the catoptron of beginning catoptron.
21. Electrofax as claimed in claim 20, wherein:
Put aside second driving force by using first driving force.
22. Electrofax as claimed in claim 20, wherein:
If while downward start signal of output reflector and enabling signal, actuating mechanism begins the shutoff operation of blade before mirror drive mechanism reduces catoptron.
23. Electrofax as claimed in claim 22, wherein:
Actuating mechanism comprises a compound magnet that is made of permanent magnet and solenoid.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004128563A JP4626177B2 (en) | 2004-04-23 | 2004-04-23 | Electronic camera, shutter device, and mirror driving device |
| JP2004128563 | 2004-04-23 | ||
| JP2005020092 | 2005-01-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1690832A CN1690832A (en) | 2005-11-02 |
| CN100580543C true CN100580543C (en) | 2010-01-13 |
Family
ID=35346355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510067681A Expired - Fee Related CN100580543C (en) | 2004-04-23 | 2005-04-25 | Electronic camera |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4626177B2 (en) |
| CN (1) | CN100580543C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566202A (en) * | 2010-11-24 | 2012-07-11 | 佳能株式会社 | Imaging apparatus |
| CN102566200A (en) * | 2010-12-20 | 2012-07-11 | 佳能株式会社 | Shutter device and camera including shutter device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5058613B2 (en) | 2007-01-23 | 2012-10-24 | キヤノン株式会社 | Imaging device |
| JP5511211B2 (en) * | 2009-03-30 | 2014-06-04 | キヤノン株式会社 | Shutter device and imaging device |
| JP5461884B2 (en) * | 2009-05-14 | 2014-04-02 | リコーイメージング株式会社 | Imaging device |
| JP2015148780A (en) * | 2014-02-10 | 2015-08-20 | 株式会社ニコン | Focal plane shutter unit and imaging device |
| TWI639879B (en) * | 2018-02-14 | 2018-11-01 | 劉大宇 | Security shielding device for camera lens |
| WO2020243859A1 (en) * | 2019-06-01 | 2020-12-10 | 瑞声光学解决方案私人有限公司 | Automatic focusing lens assembly and automatic focusing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11122542A (en) * | 1997-10-17 | 1999-04-30 | Nikon Corp | Electronic camera |
| JP2004108393A (en) * | 2002-09-13 | 2004-04-08 | Canon Inc | Power transmission device and camera |
-
2004
- 2004-04-23 JP JP2004128563A patent/JP4626177B2/en not_active Expired - Fee Related
-
2005
- 2005-04-25 CN CN200510067681A patent/CN100580543C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566202A (en) * | 2010-11-24 | 2012-07-11 | 佳能株式会社 | Imaging apparatus |
| CN102566202B (en) * | 2010-11-24 | 2014-11-26 | 佳能株式会社 | Imaging apparatus |
| CN102566200A (en) * | 2010-12-20 | 2012-07-11 | 佳能株式会社 | Shutter device and camera including shutter device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4626177B2 (en) | 2011-02-02 |
| JP2005309234A (en) | 2005-11-04 |
| CN1690832A (en) | 2005-11-02 |
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