CN102129153B - Electronic camera - Google Patents
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- CN102129153B CN102129153B CN201110065257.1A CN201110065257A CN102129153B CN 102129153 B CN102129153 B CN 102129153B CN 201110065257 A CN201110065257 A CN 201110065257A CN 102129153 B CN102129153 B CN 102129153B
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Abstract
The present invention provides an electronic camera which can not damage photograph operability of manipulator and can reliably cool a heat release board and a drive circuit board arranged with heating components such as camera shooting elements, IC and etc. An air absorbing hole (81) and an air discharging hole (82) are arranged at the external surface of the camera body (10), which use air flow generated by a air cooling fan (84) and passing through the drive circuit board (37) to process forced air cooling, and then get through the position of the drive circuit board (37) which arranges the air absorbing hole (81) and the air discharging hole (82) at surface direction and clips the external surface of a held portion (13) of the camera body (10), the manipulator holds the held portion (13) by hand to process photograph operation, the hand can not block the air absorbing hole (81) and the air discharging hole (82), therefore can not damage the photograph operability of manipulator, can reliably cool a drive circuit board (37) as a heating source corresponding to a camera shooting element (34).
Description
The application is to be on June 27th, 2008 applying date, and application number is 200810126463.7, and what denomination of invention was the application for a patent for invention of " Electrofax " divides an application.
Technical field
The present invention relates to, by phtographic lens, shot object image shooting is made to the Electrofax of its imaging on imaging apparatus or there are the portable phone, portable information terminal etc. of camera function.
Background technology
The Electrofaxs such as digital camera with imaging apparatuss such as CCD, accept the transmitted light beam of phtographic lens, and obtain view data according to its opto-electronic conversion output by imaging apparatus.Imaging apparatus is by having loaded timing signal generating device and AFE (Analog Front End: AFE (analog front end)) shooting such as element is controlled and controlled shooting by the drive circuit substrate of IC and move.Timing signal generating device is used for driving imaging apparatus.In addition, AFE element samples processing, A/D conversion process, AGC processing etc. for the view data that imaging apparatus is obtained., in the time of on drive circuit substrate is configured in away from the position of imaging apparatus, be easily subject to the impact of electrical noise herein, so preferably approach imaging apparatus, be configured.
On the other hand, being loaded in the IC such as timing signal generating device in drive circuit substrate and AFE element becomes the pyrotoxin of following its continuous action and generating heat, and makes environment temperature increase.Particularly in recent years, have Action clock follow imaging apparatus pixel count increase and rise, the trend that thermal value in drive circuit substrate increases.Thus, when imaging apparatus approaches this kind of drive circuit substrate of configuration, be subject to the impact of the thermonoise using drive circuit substrate as pyrotoxin and produce image quality reduction, therefore need the countermeasure of cooling drive circuit substrate.
Herein, the substrate being known to being present in the heat generating components such as imaging apparatuss such as CCD in the shell of Electrofax and IC and these heat generating components being installed carries out forced air-cooled technology (for example,, with reference to patent documentation 1).
[patent documentation 1] Japanese kokai publication hei 10-285441 communique
But in the situation that want to use the drive circuit substrate of the cooling Electrofax as above of forced air cooling mode of air cooling fan, when operator keeps the maintaining part of Electrofax to carry out shooting operation with hand, hand can stop up suction hole or vent port sometimes.Thus, can not guarantee reliable suction and discharge action, it is insufficient that cooling effect can become.Now, it is also passable that operator notes not keeping Electrofax plugging hole, but be not only not easy maintenance but also make to keep unstable, infringement operability.
Summary of the invention
The present invention completes in light of this situation, and its object is, the shooting operation that does not damage operator is provided, and the heat liberation board of heat generating components and the cooling Electrofaxs of drive circuit substrate such as imaging apparatus and IC can be installed reliably.
In order to solve described problem, reach object, Electrofax of the present invention is characterised in that, this Electrofax has: imaging apparatus, its be configured on the optical axis of phtographic lens and with this light shaft positive cross, make the shot object image imaging obtaining by described phtographic lens; Heat liberation board, it is configured to contact the rear side of this imaging apparatus; Drive circuit substrate, it loads the shooting control element for described imaging apparatus, approaches the rear side that is configured in described imaging apparatus; Camera body, it loads described phtographic lens built-in described imaging apparatus and described drive circuit substrate, and has the retaining zone being kept by operator leaving on the position of described optical axis, on the back position of described imaging apparatus, has monitor; Suction hole and vent port, it is disposed on the position outside surface that leaves described retaining zone, clip described monitor in face direction of described camera body, so that the surrounding of the air sucking by described drive circuit substrate is discharged from; And air cooling fan, its configuration of shape according to the outer capping of described camera body, generation is flowed by described drive circuit substrate ambient air, wherein, described vent port is configured on the described outside surface of described camera body and side described retaining zone opposition side, and described suction hole is configured in described monitor on the described outside surface of described camera body many places around; Described suction hole is formed at the outside surface of the rear side of described camera body, described vent port is configured in described camera body and side grip part opposition side, at suction hole and the vent port place of described camera body, be provided with closely filter element with the exterior interior surface of camera body.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, this Electrofax also has: fixed part, and it is configured in the front face side of described camera body, changes described phtographic lens is installed freely; Battery chamber, it is configured in the inside of described retaining zone, and takes in battery; Power circuit substrate, it loads power circuit from the electric power based on described battery to each portion that supply with, and is configured on the described optical axis Ce position outside the described battery chamber in described camera body; And front face side suction hole, it is configured in around the described fixed part on the described outside surface of described camera body, so that the surrounding of the air stream sucking by described power circuit substrate and described drive circuit substrate is discharged from from described vent port.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, is directly pasted with heat-storing material on described heat liberation board.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, described filter element has aeration with respect to described suction hole and described vent port.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, this Electrofax also has the ，Gai of imaging apparatus travel mechanism imaging apparatus travel mechanism and drives described imaging apparatus to make its displacement, to proofread and correct the shake of this Electrofax.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, this Electrofax also has: microcomputer, and it controls the action of this Electrofax integral body; And temperature sensor, it detects the temperature of the described drive circuit substrate periphery in described camera body, and described microcomputer optionally drives described air cooling fan according to the temperature being detected by described temperature sensor.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, this Electrofax also has microcomputer, this microcomputer is controlled the action of this Electrofax integral body, and this microcomputer, according to the actuation time of burst mode, optionally drives described air cooling fan.
In addition, Electrofax of the present invention is characterised in that, in foregoing invention, this Electrofax also has microcomputer, this microcomputer is controlled the action of this Electrofax integral body, this microcomputer, according to the actuation time of instantaneously browsing pattern, optionally drives described air cooling fan.
Electrofax of the present invention, outside surface at camera arranges suction hole and vent port, and the air stream that utilizes air cooling fan to produce by drive circuit substrate carries out forced air cooling, afterwards, suction hole and vent port are disposed on the position outside surface that leaves retaining zone, clip monitor in face direction of camera body.Thus, when operator keeps retaining zone to carry out shooting operation with hand, hand can not stop up suction hole and vent port.Thus, can play the shooting operation that does not damage operator, play the cooling effect that can carry out reliably becoming with respect to imaging apparatus the drive circuit substrate of pyrotoxin.
Accompanying drawing explanation
Fig. 1 is the stereoscopic figure from the camera body of the single lens reflex type digital camera of front face side observation present embodiment.
Fig. 2 is the stereoscopic figure from rear side view camera main body.
Fig. 3 is the stereoscopic figure illustrating from rear side kite-camera main body.
Fig. 4 is that the surface level that comprises optical axis dissects camera body and the horizontal sectional drawing that illustrates.
Fig. 5 is that the vertical plane that comprises optical axis dissects camera body and the rip cutting side view that illustrates.
Fig. 6 is the exploded perspective view that the structure example of imaging apparatus travel mechanism is shown.
Fig. 7 is the block diagram of structure example of Denso control system that the single lens reflex type digital camera of present embodiment is shown.
Fig. 8 is the general flowchart illustrating corresponding to the action control example of the air cooling fan of detected temperatures.
Fig. 9 is the general flowchart of the action control example of air cooling fan when instantaneously browsing pattern is shown.
Figure 10 is the general flowchart of the action control example of air cooling fan when burst mode is shown.
Figure 11 is that the surface level that comprises optical axis dissects the camera body of variation and the horizontal sectional drawing that illustrates.
Figure 12 is that the vertical plane that comprises optical axis dissects the camera body of variation and the rip cutting side view that illustrates.
Symbol description
10: camera body; 11: fixed part; 13: grip part; 23: LCD monitor; 34: imaging apparatus; 35: heat liberation board; 37: drive circuit substrate; 43: heat-storing material; 45:TG element; 46:AFE element; 47: temperature sensor; 50: imaging apparatus travel mechanism; 61: battery; 62: battery chamber; 68: power circuit substrate; 81: suction hole; 82: vent port; 84: air cooling fan; 86,87: suction hole; 88: front face side suction hole; 89～93: filter element; 100: system controller; 200: LCD monitor; L: optical axis.
Embodiment
Below, with reference to the accompanying drawings of for implementing the best mode of Electrofax of the present invention.The Electrofax of present embodiment, has illustrated the application examples of the single lens reflex type digital camera of lens changeable as an example.
Fig. 1 is the stereoscopic figure from the camera body of the single lens reflex type digital camera of front face side observation present embodiment, Fig. 2 is the stereoscopic figure from rear side view camera main body, Fig. 3 is the stereoscopic figure illustrating from rear side kite-camera main body, Fig. 4 is that the surface level that comprises optical axis dissects camera body and the horizontal sectional drawing that illustrates, and Fig. 5 is that the vertical plane that comprises optical axis dissects camera body and the rip cutting side view that illustrates.
The general configuration of outward appearance first, is mainly described with reference to Fig. 1～Fig. 3.The single lens reflex type digital camera of present embodiment is by camera body 10 and change lens unit 8 (with reference to Fig. 5) formation, wherein, changing lens unit 8 comprises and by changing, is arranged on freely the phtographic lens 9 that the front face side substantial middle of this camera body 10 is loaded.The camera body 10 that forms the face shaping of camera, forming integral body is the shape of roughly growing crosswise.The fixed part 11 that this camera body 10 comprises ring-type, this fixed part 11 is changed installation kit freely containing the replacing lens unit 8 of phtographic lens 9 for the front face side substantial middle position on the optical axis at phtographic lens 9, and the side of this fixed part 11 has camera lens handling button 12.In addition, from front face side, observe, camera body 10, at the end sections in the vertical plane deflection left side from comprising optical axis, has and becomes the grip part of retaining zone 13, this retaining zone forms suitably outstanding gripping shape, so that kept by operator's the right hand during photography etc.13 top, this grip part has at the release-push 14 and the exposure correction button 15 that keep under the state of grip part 13 by finger-tip operated.In addition, from front face side, observe, camera body 10 has the mode dial 17 that comprises power switch 16 and controls rotating disk 18 in left upper portion, can set and switch various patterns etc.
In addition, the rear side of camera body 10 grip part 13, (white balance, AF etc. regulate button 21 and OK button 22 etc. for Auto focus: automatic focus) frame is selected button 19, one touch type white balance button 20 to have AF.In addition, camera body 10 overleaf side on the position of the optical axis of grip part 13, there is LCD monitor 23.This LCD monitor 23 is the image except being photographed, TFT (the ThinFilm Transistor: Thin Film Transistor (TFT)) type monitor is the large-scale rectangular shape display panel that accounts for half left and right of rear side area that also shows various setting/adjusting items etc.From rear side, observe, camera body 10 has the button 24 of reproduction, delete button 25, menu button 26 and information the Show Button 27 etc. in the left side of LCD monitor 23.In addition, camera body 10 is side LCD monitor 23 top overleaf, supplies the hot shoe (Hot shoe) 29 of the visual view finder of operator 28 and installation external flash lamp while having photography.
Next, the inner structure of camera body 10 is mainly described with reference to Fig. 4～Fig. 5.First, camera body 10 has Mirror box 32, and this Mirror box 32 is positioned in optical axis L and is built-in with quick return mirror 31 parts such as reflective mirror such as grade in front face side, and fixed part 11 is installed above.In addition, in camera body 10, towards than the more past inboard of quick return mirror 31, in optical axis L according to image unit 36, drive circuit substrate 37 and the circuit substrate 38 etc. that dispose successively focal-plane shutter 33, comprise imaging apparatus 34 and heat liberation board 35 with optical axis L quadrature and the mode that is parallel to each other.Focal-plane shutter 33 opens and closes by motor 39.This motor 39 also moves for the switching of upspringing/fall after rise of quick return mirror 31.
In addition, image unit 36 utilizes fixture 42 by the dustproof filter 40 configuring successively from front face side, optical low pass filter 41 and imaging apparatus 34 blocking.Dustproof filter 40 vibrates by be arranged on the piezoelectric element of circumference with preset frequency vibration the dust that removes filter surface attachment.Imaging apparatus 34, by the shot object image of phtographic lens 9 opto-electronic conversion imaging on shooting face, forms rectangular shape, in the present embodiment, for example, uses ccd image sensor.In addition, as imaging apparatus 34, being not limited to ccd image sensor, can be also cmos image sensor etc.In addition, heat liberation board 35 is the metal that exothermicity is good and forms than imaging apparatus 34 also greatly, by contacting the rear side of imaging apparatus 34 and being fixed on fixture 42, is also used as imaging apparatus fixed head., in the surface (back side) of heat liberation board 35 side, be directly pasted with the heat-storing material 43 of plate shape shape herein, the heat-storing material 43 of this plate shape shape for example produces phase change and absorbs heat during melting at 48 ℃.Heat-storing material 43 is used the latent-heat storage material of hot memorizing material.For example, the heat-storing material of the integrally formed mould of the heat-storing material of inorganic series and synthetic resin and organic series also can be used the synthetic resin that is filled with microcapsules.Heat-storing material is shaped as the light sheet material that is coated with the bonding agent that thermal conductivity is high.
In addition,, when being provided with the 50，Gai of imaging apparatus travel mechanism imaging apparatus travel mechanism 50 in camera body 10 and hand occurring on digital camera trembling, displacement drive is mounted with the fixture 42 of imaging apparatus 34, to proofread and correct this shake.As this imaging apparatus travel mechanism 50, can take various structures, but in the present embodiment, the oscillator that produces the elliptical vibration of synthetic extensional vibration and flexural vibrations by applying preset frequency voltage on drive division is used as to actuator.Fig. 6 is the exploded perspective view that the structure example of imaging apparatus travel mechanism 50 is shown.With reference to Fig. 6, probably describe, imaging apparatus travel mechanism 50 is using the fixture 42 that has loaded dustproof filter 40, optical low pass filter 41 etc. and imaging apparatus 34 as the X-axis along with optical axis L (Z-direction) quadrature and the final mobile object thing that moves of Y direction.In addition, imaging apparatus travel mechanism 50 has X frame 51 and frame parts 52, and this X frame 51 forms frame shapes, be configured in optical axis L, and loading fixture 42 movably in Y direction, this frame parts 52 forms frame shapes, loads movably X frame 51 in X-direction.This frame parts 52 is fixed in camera body 10Nei position.
In addition, imaging apparatus travel mechanism 50 has X-axis driving mechanism 54 and Y-axis driving mechanism 56, this X-axis driving mechanism 54 is included in the actuator 53 that in X-direction, X frame 51 is moved with respect to frame parts 52 displacements, and this Y-axis driving mechanism 56 is included in the actuator 55 that in Y direction, fixture 42 is moved with respect to 51 displacements of X frame.In addition, the hand amount of trembling of imaging apparatus travel mechanism 50 corresponding detected cameras when making fixture 42 move with respect to frame parts 52 displacements together with X frame 51 in X-direction, makes fixture 42 move with respect to 51 displacements of X frame in Y direction.Thus, the imaging apparatus 34 being loaded on fixture 42 moves in X-direction and Y direction top offset in XY plane, to proofread and correct hand, trembles.Position detecting device is formed with from being mounted with one jiao of extended arm 421 of the fixture 42 of imaging apparatus 34.This arm 421 engages on thickness direction the magnet 422 being magnetized.In addition, on frame parts 52, there are a plurality of Hall elements 521 for detection of the magnetic force change of magnet 422 ends.It is relative paired that magnet 422 and Hall element 521 are configured to, and a plurality of Hall elements 521 are configured on in-plane, to detect the position of the two-dimensional directional of X-axis, Y-axis.Thus, the fixture 42 that is mounted with imaging apparatus 34 is when utilizing X, Y-axis driving mechanism 54,56 to move in the optical axis of phtographic lens 92 dimension directions in the vertical direction, and position detecting device can carry out position probing.
In addition, drive circuit substrate 37 is mounted with the TG element (regularly generating device) 45 of IC structure and AFE (Analog Front End: AFE (analog front end)) element 46, as the shooting control element for imaging apparatus 34.Between this drive circuit substrate 37 and imaging apparatus 34 and heat liberation board 35, there is minim gap and approach and be configured in rear side, be fixed on fixture 42.Herein, TG element 45 is to supply with for driving the drive IC of the Action clock of imaging apparatus 34.In addition, AFE element 46 carries out action control, has implemented, after sampling processing, to carry out A/D conversion process and AGC and process, and obtain the numerical data as photographs with the simulating signal that imaging apparatus 34 is obtained by opto-electronic conversion.By the back side just below at imaging apparatus 34, approach this kind of drive circuit substrate 37 of configuration, the impact that can alleviate electrical noise.In addition,, in the drive circuit substrate 37 back side (imaging apparatus opposed faces) side central authorities, be mounted with the temperature sensor 47 that detects environment temperature.In addition, circuit substrate 38 is such as being mounted with control circuit for imaging apparatus travel mechanism 50 etc., and between drive circuit substrate 37, has and be configured in gap rear side, is fixed on frame parts 52.
On the other hand, the inside in camera body 10Zhong， grip part 13, is provided with and takes in battery 61 battery chamber 62.In addition the rear side of the inside of ， grip part 13, processes, compresses main circuit substrate 63 edges of processing, data storage processing etc. and the direction configuration of optical axis L quadrature for carrying out the whole control of camera and image.On this main circuit substrate 63, the storeies such as SDRAM have also been loaded.Between main circuit substrate 63 and drive circuit substrate 37, by flexible substrate 64, be electrically connected to.This flexible substrate 64 forms the width that does not stop up inner space.In addition between ， grip part 13Zhong， battery chamber 62 and main circuit substrate 63, be formed with for packing the holding tank 66 of storage card 65 into, conventionally by open-close lid 67 obturations.Thus, the digitized photographic image data of AFE element 46 that passes through of being made a video recording by imaging apparatus 34 is implemented after necessary processing in main circuit substrate 63, is stored in SDRAM temporarily, is stored in thereafter in storage card 65.In addition in the optical axis L Ce space outside ， grip part 13Nei， battery chamber 62 (by ectocentral space), having real estate with main circuit substrate 63 arranged perpendicular is the power circuit substrate 68 of fore-and-aft direction.This power circuit substrate 68 is mounted with the power circuit 69 of supplying with the electric power based on battery 61 for each portion on each substrate 37,38,63.In addition 13 Nei，Bi battery chambers 62, ， grip part, by front face side, are provided with the aluminium electrolutic capacitor 70 that flashlamp is used.
In addition, in camera body 10, the behind in the optical axis L of quick return mirror 31 disposes sub-mirror 31a, and in camera body 10, is provided with and accepts the AF sensor unit 71 for detection of defocus amount from the reflected light of sub-mirror 31a.On the other hand, on the reflection side optical axis of quick return mirror 31, be equipped with roof mirror (pentaprism) 72, eyepiece 73 etc.Eyepiece 73 top, disposes the lens 74 and the photometry sensor 75 that for utilizing, carry out photometry from the reflected light of the part of roof mirror 72.
In this kind of structure, with respect to imaging apparatus 34 drive circuit substrate 37, become main pyrotoxin, in the present embodiment, do not have to camera architecture is applied large change and forces the cooling structure of cooling drive circuit substrate 37.First, at the outside surface of the rear side of camera body 10, in LCD monitor 23 with regulate between button 21 (positive side, LCD monitor 23 right side), configuration forms the suction hole 81 of several groove shapes.In addition in side (right flank of seeing from the front face side) configuration of the opposition side of the outside surface ， grip part 13 of camera body 10, form, the vent port 82 of several groove shapes.This vent port 82, on the above-below direction of camera body 10, is formed on the middle position corresponding with suction hole 81.That is, suction hole 81 and vent port 82 are disposed on the position at two ends, the left and right outside surface that leaves grip part 13 of camera body 10, clip drive circuit substrate 37 (LCD monitor 23) in face direction.Thus, as shown by the arrows in Figure 4, be set as forming the runner 83 being discharged from from vent port 82 by the surrounding of drive circuit substrate 37 from the air of suction hole 81 suctions.In addition have according to air cooling fan 84 and the vent port 82 of exterior (lid) shape configuration of camera body 10.The size that is provided with a plurality of vent port 82 region is less than the deflation area size of this air cooling fan 84, is formed on space between air cooling fan 84 and vent port 82 by side walls enclose.In addition, the lid of air cooling fan 84 also can approach vent port 82 with opposed of deflation area.Now, be set as not allowing the high hot-air that air cooling fan 84 aspirates from the side leak.This air cooling fan 84 is for from suction hole 81 air amounts, and generation of forced is by drive circuit substrate 37 ambient airs streams and discharge from vent port 82.This air cooling fan 84 is fixed on the inside of camera body 10 by fan stationary fixture 85.
In addition, at the outside surface of camera body 10, on the back side of the upper side periphery of LCD monitor 23, configuration forms suction hole 86, and on the bottom surface of the lower side periphery of LCD monitor 23, configuration forms suction hole 87.These suction holes 86,87 are formed by the several slit-like openings along LCD monitor 23 top, base.These suction holes 86,87 are also disposed on the position outside surface that leaves grip part 13, clip drive circuit substrate 37 (LCD monitor 23) in face direction of camera body 10.
In addition at the outside surface of the front face side of camera body 10, at the periphery of fixed part 11, be that near side one end, front of power circuit substrate 68, configuration is formed with front face side suction hole 88.This front face side suction hole 88 is around discharged from vent port 82 by power circuit substrate 68 and drive circuit substrate 37 for the air stream that air cooling fan 84 is sucked from this front face side suction hole 88.
In addition, in camera body 10, be close to exterior interior surface and be provided with spongiform filter element 89～93, these spongiform filter elements 89～93 have aeration with respect to each suction hole 81,86,87, vent port 82 and front face side suction hole 88.By thering is these filter elements 89～93, prevent that in the situation that air stream when mobile and air cooling fan 84 stops by the driving of air cooling fan 84, dust etc. enter in camera body 10 from suction hole 81,86,87, vent port 82 and front face side suction hole 88.
Then, the structure of the Denso control system of the single lens reflex type digital camera of the present embodiment that comprises this kind of textural element is described.Fig. 7 is the block diagram of structure example of Denso control system that the single lens reflex type digital camera of present embodiment is shown.First have and administer the whole system controller (microcomputer) 100 of controlling of camera.System controller 100 consists of CPU 99 and a plurality of circuit block, is loaded in drive circuit substrate 37.A plurality of circuit blocks are such as image processing circuit 101, compressed and decompressed circuit 102, image recognition circuit 103, external memory storage IF circuit 104, general purpose I/O circuit 105, interrupt control circuit 106, timer counter 107, A/D converter 108 etc.CPU 99 and each circuit block 101～108 utilize control line to be connected with bus.
The view data being taken into from imaging apparatus IF circuit 110 of 101 pairs of imaging apparatuss of image processing circuit, 34 shootings is implemented the predetermined image such as γ correction, color conversion, pixel transitions and white balance processing and is processed.Compressed and decompressed circuit 102 carries out the decompression of the compressing image data that the compression of the view data after image processing circuit 101 images are processed processes and read from storage card 65.Image recognition circuit 103 is carried out image processing algorithm required while using predetermined image recognition algorithm to detect the face feature point as the personage of subject from the view data of imaging apparatus 34 shootings.
In addition the bridging functionality between 104 performances of external memory storage IF circuit and the data bus of storage card 65, SDRAM 112, flash memory 113 and system controller 100 inside.In flash memory 113, record is for controlling control program that molar behavior uses, controlling parameter etc.By CPU 99, read and carried out the control program being stored in flash memory 113, system controller 100 is controlled the action of camera.SDRAM 112 is for the interim storage of the view data that obtains by imaging apparatus IF circuit 110, and as system controller 100 workspace.Storage card 65 is the removably recording medium such as semi-conductive nonvolatile memory and small-sized HDD.
General purpose I/O circuit 105 is as the lead-out terminal that is connected to the control signal of reading in terminal, control peripheral circuit of the camera operation switch 114 on system controller 100.Interrupt control circuit 106 generates the look-at-me of camera operation switch 114, the look-at-me of timer counter 107 etc.Timer counter 107 counting clocks the system that produces are controlled required timing signal.A/D conversion is carried out in the detection output of the various sensors such as temperature sensor 47 that 108 pairs of cameras of A/D converter have.
The imaging apparatus 34 being formed by the CCD arranging in the image unit 36 of fixture 42 blocking etc. becomes analog electrical signal by the shot object image opto-electronic conversion of phtographic lens 9 imagings.Imaging apparatus IF circuit 110 generates the timing pip that drives imaging apparatus 34, reads the analog electrical signal after imaging apparatus 34 opto-electronic conversion, carries out A/D conversion and transmits to system controller 100 as view data.
In addition, in order to utilize vibration to remove, be attached to the dust on the dustproof filter 40 comprising in image unit 36, dustproof 119 pairs of piezoelectric element output drive signals of filter driving circuit.Imaging apparatus travel mechanism 50 in the vertical XY plane of the optical axis L with pick-up lens 9 to having kept the fixture 42 of image unit 36 to carry out 2 dimension displacements, there is the actuator being formed by Electromagnetic Drive motor and be used as drive source.Actuator driving circuit 120 is for this actuator output drive signal.System controller 100 is carried out following so-called hand and is trembled corrective action: the shake producing according to camera makes image unit 36 (fixture 42) displacement, prevents thus image deterioration.By having utilized the angular velocity detection circuit 121 of the output of gyrostatic angular-rate sensor 121a and this angular-rate sensor of amplification 121a to detect the shake that camera produces.System controller 100 is according to the output of angular velocity detection circuit 121 control signal that 120 outputs are moved for jitter correction to actuator driving circuit.
Be arranged on image unit 36 before (object side) control imaging apparatus 34 the focal-plane shutter 33 of time shutter corresponding to controlling on-off action from the control signal of shutter control circuit 122 outputs.System controller 100 is controlled shutter control circuit 122 according to the time shutter.Quick return mirror 31 is for by the spectroscope of the beam direction imaging apparatus 34 of phtographic lens 9 and viewing optical system (pentaprism 72 and eyepiece 73).At the central portion of quick return mirror 31, be supported with sub-mirror 31a.The central portion of quick return mirror 31 is translucent, and the light by this translucent portion reflects and the AF sensor unit 71 that leads by sub-mirror 31a.Quick return mirror 31 optionally obtains the position of (falling position) and light path outer (position of upspringing) in the light path of pick-up lens 9 by reflective mirror displacement mechanism 123.Actuator in 124 pairs of reflective mirror displacement mechanisms 123 of reflective mirror driving circuit sends and drives signal.Quick return mirror 31 is falling position after rise, and sub-mirror 31a is in light path time, and the light beam of phtographic lens 9 is directed to AF sensor unit 71.Thus, when system controller 100 is obtained defocus amount (focus deviation) from the output of AF sensor unit 71, sub-mirror 31a is set in light path.In addition, while photographing action, sub-mirror 31a is kept out of the way outside light path.As the AF sensor in this AF sensor unit 71, for example, use the AF sensor of known phase differential mode.
In addition, power circuit (DC/DC converter) 126 becomes system controller 100 and the required driving voltage of its peripheral circuit to supply with the voltage transitions of battery 61.Distributing electric power is controlled in instruction based on system controller 100.LCD monitor driving circuit 127 drives LCD monitor 23.View data when LCD monitor 23 shows instantaneously browsing action according to the driving signal from LCD monitor driving circuit 127 also shows various menus etc.Camera operation switch 114 is the switches for operate camera, comprises release-push 14, exposure correction button 15, pattern configuration switch (for example, photograph mode switch), instantaneously browsing switch and power switch 16 etc.
Changing lens unit 8 is controlled by lens controller 130.Lens controller 130 is connected on system controller 100 by order wire, according to carrying out predetermined control action from the instruction of system controller 100.Zoom mechanism 131 is for changing the mechanism of the zoom action of the focal length of lens 9a for the zoom of phtographic lens 9.Focal adjustments mechanism 132 is for changing the mechanism of the image space of lens 9b for the focusing of phtographic lens 9.For the driving signal that is arranged on the motor in each mechanism 131,132, from camera lens motor-drive circuit 133, be supplied to.Lens controller 130 carries out zoom action and the focal adjustments of phtographic lens 9 and moves by controlling camera lens motor-drive circuit 133.
Next action while carrying out forced air cooling by the driving of air cooling fan 84 is described.While driving air cooling fan 84, the air stream that generation is discharged from vent port 82, follow in this, the air sucking from the suction hole 81 at the camera body 10 back side is discharged to camera body 10 side from vent port 82 by runner 83 around of drive circuit substrate 37.That is the air, sucking from suction hole 81 becomes the air stream by the Jian gap, the back side of drive circuit substrate 37 and circuit substrate 38 gap and drive circuit substrate 37 and imaging apparatus 34 (heat liberation board 35) in face direction and flows.Thus, forced air cooling becomes the drive circuit substrate 37 of pyrotoxin expeditiously, and can reduce the thermonoise to imaging apparatus 34.
Now, air stream also flows with respect to heat liberation board 35 parts in face direction, so heat liberation board 35 is also cooled by forced air cooling, and the imaging apparatus 34 of heat liberation board 35 contacts self also can high efficiency cooling.Herein, also have by contact in capping outside and be fixedly connected to the heat liberation board on imaging apparatus, the heat heat that imaging apparatus is sent is transmitted to heat liberation board, exterior covering and the heat release countermeasure (for example,, with reference to TOHKEMY 2005-252547 communique, TOHKEMY 2004-104632 communique) of carrying out heat release.But the in the situation that of present embodiment, imaging apparatus 34 arranges movably by imaging apparatus travel mechanism 50, can not apply the heat release countermeasure of heat exchange pattern, but can tackle by above-mentioned forced air cooling.
In addition, along with the driving of air cooling fan 84, also produce following air stream: from the suction hole 86,87 that is disposed at the upper-lower position of LCD monitor 23 and is formed at the outside surface of camera body 10, suck and to camera body 10 side, discharge from vent port 82 by runner 83 around of drive circuit substrate 37.Thus, can carry out efficiently the pressure of drive circuit substrate 37 cooling comprehensively.
In addition, along with the driving of air cooling fan 84, also produce following air stream: from be configured in fixed part 11 peripheries be near form side one end, front of power circuit substrate 68 front face side suction hole 88 suck and by power circuit substrate 68 around and drive circuit substrate 37 around from vent port 82, be discharged from.Thus, the pressure that can improve drive circuit substrate 37 is cooling, and the heat simultaneously producing for power circuit substrate 68 also can efficiently be carried out cooling.
This kind of forced air cooling of the driving by air cooling fan 84 moved, for example, operator, with the right hand, keep camera body 10 grip part 13, keeps lens unit as required with left hand, observes in the situation of view finder 28 and is performed.Now, any one suction hole 81,86,87, front face side suction hole 88, vent port 82 are all provided in the outside surface that leaves camera body 10 grip part 13, and the hand that therefore keeps grip part 13 can plugging hole, can carry out reliably forced air cooling.Herein, the keeping method of grip part 13 is different because of photography situation, and in addition, individual difference is also very large, but not affected by it.Thus, operator can recognize especially suction hole 81,86,87, front face side suction hole 88 and vent port 82 and keep grip part 13, not damage operability.In addition, drive circuit substrate 37 grades are carried out to forced air cooling and the air stream of discharging from vent port 82, because flow towards camera body 10 side, so can be to operator's side exhausts such as face of operator.Thus, operator can be because exhaust feels unpleasant, can comfortable operation.
Next the driving timing of air cooling fan 84 is described.Air cooling fan 84 is not to drive always, and is only in drive circuit substrate 37 heatings, to produce temperature rising optionally to drive if desired.The peripheral temperature that becomes the drive circuit substrate 37 of pyrotoxin with respect to imaging apparatus 34 is always detected by temperature sensor 47.On the other hand, with on the opposed heat liberation board 35 of drive circuit substrate 37, be pasted with heat-storing material 43, due to the heating of drive circuit substrate 37, for example, in the situation that near temperature runner 83 rises to 48 ℃ of left and right, heat-storing material 43 produces phase change and the interim heat that absorbs during melting.Thus, can extend temperature and rise to 48 ℃ of above times.In addition, drive circuit substrate 37 persistent fevers, when the environment temperature being detected by temperature sensor 47 for example reaches 50 ℃～60 ℃, by the driving of not shown control module indication air cooling fan 84.Like this, by constantly driving air cooling fan 84 at this, carry out drive circuit substrate 37 forced air cooling around.Then, when the environment temperature detecting when temperature sensor 47 is reduced to and is less than or equal to predetermined temperature, stop the driving of air cooling fan 84.
Action control example corresponding to the air cooling fan 84 of the performed said temperature data of system controller 100 is described herein.Fig. 8 is the general flowchart illustrating corresponding to the action control example of the air cooling fan 84 of detected temperatures.In addition, in this process flow diagram, only illustrate for the necessary operation of the unique point of above-mentioned control is described.
First, when the power switch 16 of one of camera operation switch 114 is connected, to system supply power, system controller 100 starts action.When action starts, executive system initialization action (step S90).Then, the output obtaining from temperature sensing circuit 118 detecting by temperature sensor 47 is carried out to A/D conversion, the drive circuit substrate 37 that measurement comprises imaging apparatus 34 thus temperature (step S100) around.Whether the temperature data that in addition, judgement measures is higher than predefined predetermined threshold temperature Tfan-on (step S102).Predetermined threshold temperature Tfan-on is stored in flash memory 113 in advance as controlling one of parameter.
(step S102 when herein, the temperature data of measurement is higher than threshold temperature Tfan-on; Be), be necessary to drive the cooling drive circuit substrate that comprises imaging apparatus 34 37 of air cooling fan 84 around, forward step S108 side to.First, judge that air cooling fan 84 is whether in driving (step S108).If not (step S108 in driving; No), to air cooling fan driving circuit 128, send and drive commencing signal, start the driving (step S110) of air cooling fan 84.If (step S108 in driving; Be), forward step S112 to.
On the other hand, in the situation that measured temperature data is less than or equal to threshold temperature Tfan-on (step S102; No), forward step S104 side to.First, judge that air cooling fan 84 is whether in driving (step S104).If (step S104 in driving; Be), to air cooling fan driving circuit 128, send and drive stop signal, stop the driving (step S106) of air cooling fan 84.If not (step S104 in driving; No), forward step S112 to.
The action control of this kind of step S100～S110 is periodically carried out in the starting of system.Thus, corresponding to the drive circuit substrate 37 that comprises imaging apparatus 34 temperature variation (changing corresponding to the action of imaging apparatus 34) around, be switched on/cutting-off controlling of the driving of air cooling fan 84.
Whether the release-push 14 of judging one of camera operation switch 114 thereafter, connects (step S112).(step S112 when release-push 14 is connected; Be), the output based on AF sensor unit 71 detects defocus amount (according to the focus detecting method of known phase differential mode), and the defocus amount detecting is sent to lens controller 130.Based on this defocus amount, by lens controller 130, carried out the focal adjustments action (step S114) of phtographic lens 9.In addition, carry out photometry action, the output of brightness measuring circuit 111 is carried out A/D conversion and detected subject brightness (step S116).Based on these data, determine conditions of exposure (f-number of camera lens, shutter are during second).
Then, control reflective mirror driving circuit 124, the mirror that carries out the quick return mirror 31 to be set to the position of the upspringing action (step S118) of upspringing.In addition, f-number definite in step S116 is sent to lens controller 130, the shutter based on definite in step S116 is controlled shutter 33 during second simultaneously, makes imaging apparatus 34 exposures (step S122).After exposure actions, from imaging apparatus 34, read view data, and convert predetermined image file to and store in storage card 65.Then, control reflective mirror driving circuit 124, carry out quick return mirror 31 to be set to the mirror falling action (step S124) that falls position after rise, forward step S100 to.
In addition (step S112 when disconnecting release-push 14; No), judge that whether the power switch 16 of one of camera operation switch 114 is in on-state (step S126).If power switch 16 is in on-state (step S126; Be), forward step S100 to.On the other hand, if power switch 16 disconnects (step S126; No), executive system stops action (step S130), halt system action.
The invention is not restricted to above-mentioned embodiment, so long as do not depart from purport scope of the present invention, can carry out various distortion.For example, in the present embodiment, and use for heat liberation board 35 and the heat-storing material 43 that arranges suppresses temperature and rises, according to the detected temperatures of temperature sensor 47, optionally drive air cooling fan 84 simultaneously.But, while not using heat-storing material 43, can optionally drive air cooling fan 84 according to the detected temperatures of temperature sensor 47 too.
In addition, also serviceability temperature sensor 47 not, optionally drives air cooling fan 84 according to pattern.Drive circuit substrate 37 continuous drive imaging apparatuss 34, while processing continuously the view data that this imaging apparatus 34 obtains, thermal value increases, and causes temperature to rise.As this type of pattern, for example, have the instantaneously browsing pattern that can replace view finder to use, this instantaneously browsing pattern shows continuously in LCD monitor 23 takes the burst mode (sequence photography pattern) of shot object image and the image that imaging apparatus 34 is taken continuously in the short time.These burst modes and instantaneously browsing pattern are optionally set according to switching manipulation.Therefore,, while setting the pattern of burst mode or instantaneously browsing pattern, also can automatically drive air cooling fan 84 by the time point after the schedule time in the actuation time starting from this pattern setting.By delaying this type of air cooling, move, can reduce the power consumption of Electrofax.
The action control example of the air cooling fan 84 during instantaneously browsing pattern that herein, illustrative system controller 100 is carried out.Fig. 9 is the general flowchart of the action control example of the air cooling fan 84 when instantaneously browsing pattern is shown.That is, while carrying out instantaneously browsing action, continuous drive imaging apparatus 34.Temperature rises with the continuous action of imaging apparatus 34.Therefore, after instant browse action starts, if passed through the schedule time, drive air cooling fan 84, around cooling of the drive circuit substrate 37 that comprises thus imaging apparatus 34.In addition, this process flow diagram is only depicted as the required action of unique point of the above-mentioned control of explanation.
First, when the power switch 16 of one of camera operation switch 114 is connected, to system supply power, system controller 100 starts action.When action starts, executive system initialization action (step S190).Whether the instantaneously browsing switch of then, judging one of camera operation switch 114 connects (step S200).(step S200 when instantaneously browsing switch disconnects; No), forward step S220 to.On the other hand, (step S200 during instantaneously browsing switch connection; Be), forward step S202 to.
Herein, instantaneously browsing switch operates according to it, switches 2 viewfmder mode.That is, optical finder pattern and instantaneously browsing pattern are switched mutually.The pattern of optical finder pattern for being used as the optical finder 28 of the feature of single lens reflex type camera to observe shot object image.On the other hand, in instant browse mode, with predetermined frame frequency, from imaging apparatus 34, obtain shot object image view data, according to this view data, in LCD monitor 23, show image.Instantaneously browsing pattern is the pattern of shot object image of observing with the demonstration of this LCD monitor 23.
Therefore,, in step S202, determine whether viewfmder mode is set as to instantaneously browsing pattern.(step S202 while having set instantaneously browsing pattern; Be), viewfmder mode is set as to optical finder pattern (step S204).In addition, quick return mirror 31 is set to and falls position after rise, control imaging apparatus IF circuit 110 to stop instantaneously browsing action (step S206) simultaneously.And, stop the timer counter (step S208) that has started counting action along with the setting of instantaneously browsing action.In addition, judge that air cooling fan 84 is whether in driving (step S210).If (step S210 in driving; Be), to air cooling fan driving circuit 128, send and drive stop signal, stop the driving (step S212) of air cooling fan 84.If not (step S210 in driving; No), forward step S220 to.
On the other hand, (step S202 in the situation that not setting instantaneously browsing pattern (having set optical finder pattern); No), viewfmder mode is set as to instantaneously browsing pattern (step S214).In addition, quick return mirror 31 is set to the position of upspringing.In addition, in order to obtain view data with predetermined frame frequency from imaging apparatus 34, carry out the setting of imaging apparatus IF circuit 110, start to carry out obtained view data to the transmission action of LCD monitor driving circuit 127.Thus, start instantaneously browsing action (step S216).In addition, in the elapsed time when measuring the beginning from instantaneously browsing action, start to carry out the counting action (step S218) of timer counter.
Whether the release-push 14 of judging one of camera operation switch 114 thereafter, connects (step S220).(step S220 when release-push 14 is connected; Be), according to the output of AF sensor unit 71, detect defocus amount (according to the focus detecting method of known phase differential mode), the defocus amount detecting is sent to lens controller 130.According to this defocus amount, by lens controller 130, carried out the focal adjustments action (step S222) of phtographic lens 9.In addition, carry out photometry action, the output of brightness measuring circuit 111 is carried out to A/D conversion, detect subject brightness (step S224).According to these data, determine conditions of exposure (f-number of camera lens, shutter are during second).
Then, determine whether viewfmder mode is set as to instantaneously browsing pattern (step S226).(step S226 in the situation that not being set as instantaneously browsing pattern (being set as optical finder pattern); No), control reflective mirror driving circuit 124, the mirror that carries out the quick return mirror 31 to be set to the position of the upspringing action (step S228) of upspringing.(step S226 when being set as instantaneously browsing pattern; Be), do not carry out the processing of step S228, forward step S230 to.
In step S230, to lens controller 130, be sent in f-number definite in step S224, according to definite shutter in step S224, during second, control shutter 33 simultaneously, make imaging apparatus 34 exposures.After exposure actions, from imaging apparatus 34, read view data and convert predetermined image file to and be stored into storage card 65.Then, determine whether viewfmder mode is set as to instantaneously browsing pattern (step S232).(step S232 in the situation that not being set as instantaneously browsing pattern (being set as optical finder pattern); No), control reflective mirror driving circuit 124, carry out quick return mirror 31 to be set to the mirror falling action (step S234) that falls position after rise.(step S232 when being set as instantaneously browsing pattern; Be), do not carry out the processing of step S234, forward step S200 to.
In addition (step S220 when disconnecting release-push 14; No), judge that whether the power switch 16 of one of camera operation switch 114 is in on-state (step S236).If power switch 16 is in on-state (step S236; Be), forward step S238 to.In step S238, judge whether the count value of timer counter is greater than predefined predetermined threshold time T Mfan-on.Predetermined threshold time T Mfan-on is stored in flash memory 113 in advance as controlling one of parameter.
(step S238 when herein, the count value of timer counter (elapsed time of instantaneously browsing) is greater than threshold time TMfan-on; Be), be necessary to drive the cooling drive circuit substrate that comprises imaging apparatus 34 37 of air cooling fan 84 around, forward step S240 side to.First, judge that air cooling fan 84 is whether in driving (step S240).If not (step S240 in driving; No), to air cooling fan driving circuit 128, send and drive commencing signal, start the driving (step S242) of air cooling fan 84.If (step S240 in driving; Be), forward step S200 to.
On the other hand, the count value of timer timer is less than or equal to (step S238 in the situation of threshold time TMfan-on; No), forward step S200 side to.
In addition words (the step S236 that, power switch 16 disconnects; No), executive system stops action (step S250), the action of halt system.
The action control example of the air cooling fan 84 during above-mentioned burst mode that in addition, illustrative system controller 100 is carried out.Figure 10 is the general flowchart of the action control example of the air cooling fan 84 when burst mode is shown.That is,, while carrying out continuous shooting action, imaging apparatus 34 is by continuous drive.Temperature rises with the continuous action of imaging apparatus 34.Therefore, when the number of continuous shooting reaches predetermined value, drive air cooling fan 84, around cooling of the drive circuit substrate 37 that comprises thus imaging apparatus 34.In addition, this process flow diagram only illustrates the required action of unique point of the above-mentioned control of explanation.
First, when the power switch 16 of one of camera operation switch 114 is connected, to system supply power, system controller 100 starts action.When action starts, executive system initialization action (step S290).Then, whether the state of the photograph mode switch of one of judgement camera operation switch 114 is to connect (step S300).(step S300 when photograph mode switch disconnects; No), forward step S307 to.On the other hand, (step S300 during photograph mode switch connection; Be), forward step S302 to.
Herein, photograph mode switch operates according to it, switches 2 photograph modes.That is, sequence photography pattern (burst mode) and individual photograph mode switch mutually.When release-push 14 is set to on-state in sequence photography pattern, maintain this on-state, repeatedly carry out photography action.Therefore, also continuous action of imaging apparatus 34, temperature rises.On the other hand, in individual photograph mode, release-push 14, when on-state, only carries out shot action.For the action of again photographing, temporarily release-push 14 is set as to off-state, then release-push 14 is made as to on-state.During individual photograph mode, due to discontinuous execution photography action, so the temperature of imaging apparatus 34 is difficult for rising.
Therefore,, in step S302, judge whether the photograph mode setting is individual photograph mode.(step S302 in the situation that being set as individual photograph mode; Be), photograph mode is set as to sequence photography pattern (step S304).On the other hand, (step S302 in the situation that not being set as individual photograph mode (being set as sequence photography pattern); No), photograph mode is set as to individual photograph mode (step S306).
Whether the release-push 14 of judging one of camera operation switch 114 thereafter, connects (step S307).(step S307 when release-push 14 is connected; Be), judge whether photograph mode is set as sequence photography pattern (step S308).(step S308 in the situation that not being set as sequence photography pattern; No), forward step S314 to.(step S308 in the situation that being set as sequence photography pattern; Be), start sequence photography action.Then, determine whether it is the photography action (step S310) of first in this sequence photography action.If words (the step S310 of first; Be), remove the continuous shooting counter (step S312) that (being set as 0) counts the number in sequence photography action.According to the count value of this continuous shooting counter, control as described later the driving of air cooling fan 84.Words (step S310 if not first; No), forward step S314 to.
In addition, according to the output of AF sensor unit 71, detect defocus amount (according to the focus detecting method of known phase differential mode), the defocus amount detecting is sent to lens controller 130.According to this defocus amount, by lens controller 130, carried out the focal adjustments action (step S314) of phtographic lens 9.In addition, carry out photometry action, the output of brightness measuring circuit 111 is carried out A/D conversion and detected subject brightness (step S316).According to these data, determine conditions of exposure (f-number of camera lens, shutter are during second).
Then, control reflective mirror driving circuit 124, the mirror that carries out the quick return mirror 31 to be set to the position of the upspringing action (step S318) of upspringing.In addition, f-number definite in step S316 is sent to lens controller 130, according to definite shutter in step S316, during second, control shutter 33 simultaneously, make imaging apparatus 34 exposures (step S320).After exposure actions, from imaging apparatus 34, read view data and convert predetermined image file to and be stored into storage card 65.Then, control reflective mirror driving circuit 124, carry out quick return mirror 31 to be set to the mirror falling action (step S322) that falls position after rise.
Judge whether photograph mode be set as sequence photography pattern (step S324) thereafter.(step S324 in the situation that not being set as sequence photography pattern (being set as individual photograph mode); No), forbid forwarding to step S300, until release-push 14 disconnects (step S336).For the connection to No. 1 release-push 14, to carry out the control of 1 photography action.
On the other hand, (step S324 when being set as sequence photography pattern; Be), the count value of continuous shooting counter is increased progressively to (step S326).Then, judge whether the count value that continuous shooting device is counted is greater than predefined predetermined threshold times N fan-on (step S328).Predetermined threshold number Nfan-on is stored in flash memory 113 in advance as controlling one of parameter.(step S328 when herein, the count value of continuous shooting counter (continuous shooting number of times) is greater than threshold number Nfan-on; Be), be necessary to drive air cooling fan 84 with the cooling drive circuit substrate that comprises imaging apparatus 34 37 around, forward step S330 side to.
First, judge that air cooling fan 84 is whether in driving (step S330).If not (step S330 in driving; No), to air cooling fan driving circuit 128, send and drive commencing signal, start the driving (step S332) of air cooling fan 84.Then, start for measuring the counting action (step S334) of timer counter of the driving time of air cooling fan 84.The Once you begin driving of air cooling fan 84, is necessary to maintain the driving of the schedule time.While stopping air cooling fan 84 corresponding to the end of sequence photography action or the releasing of continuous shooting pattern, the not driven enough time of air cooling fan 84 and stopping likely.In addition likely can not reach, the cooling effect of expectation.Therefore, the Once you begin driving of air cooling fan 84, is necessary to maintain the driving condition of certain hour.If air cooling fan 84 is (step S330 in driving; Be), forward step S300 to.In addition the count value of continuous shooting counter (step S328 when threshold number Nfan-on is following; No), forward step S300 side to.
On the other hand, (step S307 when disconnecting release-push 14; No), judge that whether the power switch 16 of one of camera operation switch 114 is in on-state (step S338).If power switch 16 is in on-state (step S338; Be), forward step S340 to.In step S340, judge whether the count value of timer counter is greater than predefined predetermined threshold time T M2fan-on.Predetermined threshold time T M2fan-on is stored in flash memory 113 in advance as controlling one of parameter.(step S340 when herein, the count value of timer counter is greater than threshold time TM2fan-on; Be), mean the schedule time that has driven air cooling fan 84 necessity.Therefore, forward step S342 to.That is, judge that air cooling fan 84 is whether in driving (step S342).If (step S342 in driving; Be), to air cooling fan driving circuit 128, send and drive stop signal, stop the driving (step S344) of air cooling fan 84.On the other hand, if not (step S342 in driving; No), forward step S300 to.
(step S340 when on the other hand, the count value of timer counter is less than or equal to threshold time TM2fan-on; No), transfer to step S300 side, maintain the driving of air cooling fan 84.
In addition words (the step S338 of disconnecting power switch 16; No), executive system stops action (step S350), the action of halt system.
In addition, in present embodiment, the example in the rear side of camera body 10 with the camera of fixing LCD monitor 23 has been described, but for example at Figure 11 with there is as shown in Figure 12 movable LCD monitor 200 in the situation that, has been suitable for too.Figure 11 is that the surface level that comprises optical axis dissects the camera body of variation and the horizontal sectional drawing that illustrates, and Figure 12 is that the vertical plane that comprises optical axis dissects the camera body of variation and the rip cutting side view that illustrates.Movable LCD monitor 200 opens and closes freely at left and right directions centered by a distolateral rotation axis 201 that is arranged at camera body 10, and by rotation not shown universal joint freely, is set to upset freely with respect to rotation axis 201.The in the situation that of movable LCD monitor 200, in the place that arranges of the LCD monitor 200 of camera body 10, be provided with the roughly back face wall 202 of concavity.In addition,, in the back face wall 202 of the open state of LCD monitor 200, in the position configuration of the end periphery of drive circuit substrate 37, form suction hole 81,86,87.Especially the in the situation that of movable LCD monitor 200, wall 202 is hidden in LCD monitor 200Zhong position configuration suction hole 81,86,87 overleaf.Thus, do not damaging on the basis of camera outward appearance as far as possible, in order not to be subject to the restriction of LCD monitor 200, approaching the position configuration suction hole 81,86,87 of drive circuit substrate 37 end.Thus, can effectively carry out the cooling of drive circuit substrate 37.In addition, the movable structure of LCD monitor 200 is not limited to the such left and right of illustrated example and opens and closes mode, for example, can be also to open and close up and down mode.
In addition, present embodiment has illustrated the Application Example as the removable single lens reflex type digital camera of camera lens of Electrofax, but be not limited to this type of camera, for example, also can be equally applicable to pocket digital camera, the portable phone with camera function and portable information terminal.
Claims (8)
1. an Electrofax, is characterized in that, this Electrofax has:
Imaging apparatus, its be configured on the optical axis of phtographic lens and with this light shaft positive cross, make the shot object image imaging obtaining by described phtographic lens;
Heat liberation board, it is configured to contact the rear side of this imaging apparatus;
Drive circuit substrate, its loading, for the shooting control element of described imaging apparatus, is closely configured in the rear side of described imaging apparatus;
Camera body, it loads described phtographic lens built-in described imaging apparatus and described drive circuit substrate, and on the position of described optical axis, there is the retaining zone being kept by operator leaving, on the outside surface of the camera body at the back position place with respect to described imaging apparatus, there is monitor;
Vent port, it is configured on the outside surface of described camera body and side described retaining zone opposition side;
Suction hole, it is configured in described monitor on the described outside surface of described camera body many places around; And
Air cooling fan, its configuration of shape according to the outer capping in described camera body, produces and flows by described drive circuit substrate ambient air,
Wherein, suction hole is stated in one place and described vent port is disposed on the position outside surface that leaves described retaining zone, clip described monitor in face direction of described camera body, so that the surrounding of the air sucking by described drive circuit substrate is discharged from, and, the outside surface that suction hole is disposed at the rear side of described camera body is stated in a described place
Position with respect to suction hole and vent port on the exterior interior surface of camera body is provided with filter element.
2. Electrofax according to claim 1, is characterized in that, this Electrofax also has:
Fixed part, it is configured in the front face side of described camera body, changes described phtographic lens is installed freely;
Battery chamber, it is configured in the inside of described retaining zone, and takes in battery;
Power circuit substrate, it loads power circuit from the electric power based on described battery to each portion that supply with, and is configured on the described optical axis Ce position outside the described battery chamber in described camera body; And
Front face side suction hole, it is configured in around the described fixed part on the described outside surface of described camera body, so that the surrounding of the air stream sucking by described power circuit substrate and described drive circuit substrate is discharged from from described vent port.
3. Electrofax according to claim 1, is characterized in that,
On described heat liberation board, be directly pasted with heat-storing material.
4. Electrofax according to claim 1, is characterized in that,
Described filter element has aeration with respect to described suction hole and described vent port.
5. Electrofax according to claim 1, is characterized in that, this Electrofax also has the ，Gai of imaging apparatus travel mechanism imaging apparatus travel mechanism and drives described imaging apparatus to make its displacement, to proofread and correct the shake of this Electrofax.
6. Electrofax according to claim 1, is characterized in that,
This Electrofax also has:
Microcomputer, it controls the action of this Electrofax integral body; And
Temperature sensor, it detects the temperature of the described drive circuit substrate periphery in described camera body,
Described microcomputer optionally drives described air cooling fan according to the temperature being detected by described temperature sensor.
7. Electrofax according to claim 1, is characterized in that,
This Electrofax also has microcomputer, and this microcomputer is controlled the action of this Electrofax integral body,
This microcomputer, according to the actuation time of burst mode, optionally drives described air cooling fan.
8. Electrofax according to claim 1, is characterized in that,
This Electrofax also has microcomputer, and this microcomputer is controlled the action of this Electrofax integral body,
This microcomputer, according to the actuation time of instantaneously browsing pattern, optionally drives described air cooling fan.
Applications Claiming Priority (4)
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| JP2007171057 | 2007-06-28 | ||
| JP2007-171057 | 2007-06-28 | ||
| JP2008-121402 | 2008-05-07 | ||
| JP2008121402A JP2009033718A (en) | 2007-06-28 | 2008-05-07 | Electronic camera |
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| CN2008101264637A Division CN101334579B (en) | 2007-06-28 | 2008-06-27 | Electronic camera |
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| CN102129153A CN102129153A (en) | 2011-07-20 |
| CN102129153B true CN102129153B (en) | 2014-01-15 |
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| CN2008101264637A Expired - Fee Related CN101334579B (en) | 2007-06-28 | 2008-06-27 | Electronic camera |
| CN201110065257.1A Expired - Fee Related CN102129153B (en) | 2007-06-28 | 2008-06-27 | Electronic camera |
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| CN2008101264637A Expired - Fee Related CN101334579B (en) | 2007-06-28 | 2008-06-27 | Electronic camera |
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| JP2006243378A (en) * | 2005-03-03 | 2006-09-14 | Fuji Photo Film Co Ltd | Lens barrel |
| JP2007012873A (en) * | 2005-06-30 | 2007-01-18 | Fujifilm Holdings Corp | Portable electronic apparatus |
| US7357514B2 (en) * | 2005-07-29 | 2008-04-15 | Optoma Technology, Inc. | Methods and systems for improving operation of a video projector |
-
2008
- 2008-05-07 JP JP2008121402A patent/JP2009033718A/en active Pending
- 2008-06-27 CN CN2008101264637A patent/CN101334579B/en not_active Expired - Fee Related
- 2008-06-27 CN CN201110065257.1A patent/CN102129153B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101334579A (en) | 2008-12-31 |
| CN101334579B (en) | 2011-04-20 |
| JP2009033718A (en) | 2009-02-12 |
| CN102129153A (en) | 2011-07-20 |
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