CN102841428A - Optical instrument, and control method for optical instrument - Google Patents
Optical instrument, and control method for optical instrument Download PDFInfo
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- CN102841428A CN102841428A CN2012102122108A CN201210212210A CN102841428A CN 102841428 A CN102841428 A CN 102841428A CN 2012102122108 A CN2012102122108 A CN 2012102122108A CN 201210212210 A CN201210212210 A CN 201210212210A CN 102841428 A CN102841428 A CN 102841428A
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Abstract
The present invention provides an optical instrument with which focusing mode is easily switched by operating a ring member that is provided on a lens barrel, and a control method for an optical device. The optical instrument comprises an MF ring 204 capable of freely rotating relative to a lens barrel and freely sliding to the first position and the second position, wherein, when the MF ring 204 slides to the first position, the focusing in an MF mode or an AF mode set in a camera main body 100 is performed, and when the MF ring 204 slides to the second position, the focusing in the MF mode or the AF mode is stopped, and the focusing RF mode of a focusing lens 203 to a distance corresponding to an absolute position of the MF ring 204 is performed.
Description
Technical field
The present invention relates on lens barrel, dispose ring component, can switch the control method of the optical device and the optical device of focal position according to the position of setting through the rotation of ring component with free rotation mode.
Background technology
In having the optical device of zoom lens; Known to the operation ZSW, switch normal mode and the significantly disposable technology (referring to TOHKEMY 2009-169065 communique) that move to the stepping zoom mode of predetermined position of zoom that move freely with definite camera coverage.
As stated, known state, the technology of between normal mode and stepping zoom, switching according to ZSW.Yet the manual focus that proposes simply to switch the automatic focusing carried out automatically based on the focusing of focus lens, carries out through the operation ring of operation setting on lens barrel, the optical device by the scope focusing of the predetermined distance of operation ring is aimed in the focal position.In addition, do not possess the mechanism that can preset focal length, the user can't instantaneous shooting confirm good composition in advance.
Summary of the invention
The present invention accomplishes in light of this situation, and its purpose is to provide a kind of and is located at the ring component on the lens barrel through operation, thereby can simply switch the optical device of focusing pattern.
The optical device that the present invention relates to is characterised in that to have: camera lens is used in focusing, and it is arranged in the lens barrel; Ring component, it sets to rotating freely with respect to above-mentioned lens barrel, and can be free to slide to the 1st position and the 2nd position; The focusing mode setting part, it is arranged at the camera body side, sets the focusing pattern; And control part; It is focused with the focusing pattern of in above-mentioned focusing mode setting part, setting when above-mentioned ring component slides into above-mentioned the 1st position; When above-mentioned ring component slides into above-mentioned the 2nd position, stop to be based on the focusing of the focusing pattern of setting in the above-mentioned focusing mode setting part, carry out the focusing of above-mentioned focusing with camera lens to the distance corresponding with the absolute position of above-mentioned ring component.
In addition, the optical device that the present invention relates to is characterised in that to have: camera lens is used in focusing, and it is used for focusing; Ring component, it sets to rotating freely with respect to lens barrel;
The 1st camera lens control part, the focusing operation that it carries out according to the parts beyond the above-mentioned ring component, the rotating speed during according to the rotary manipulation of above-mentioned ring component switches the focal position continuously; And the 2nd camera lens control part, it, switches and corresponding focal position, aforesaid operations position according to the position of above-mentioned ring component according to the focusing operation that the parts beyond the above-mentioned ring component carry out.
In addition, the optical device that the present invention relates to is characterised in that to have: camera lens is used in focusing, and it is used for focusing; Ring component, it sets to rotating freely with respect to lens barrel;
The 3rd camera lens control part, it switches the focal position according to the ring operation of focusing operation of being undertaken by the parts beyond the above-mentioned ring component or above-mentioned ring component; And the 4th camera lens control part, no matter it is the focusing operation that the parts beyond the lens assembly carry out, and switches and corresponding focal position, aforesaid operations position according to the position of the ring operation of above-mentioned ring component.
In addition, in the control method of optical device of the present invention, this optical device has: camera lens is used in the focusing that is arranged in the lens barrel; Set to rotating freely and can be free to slide to the ring component of the 1st position and the 2nd position with respect to above-mentioned lens barrel; And be arranged at the camera body side; Set the focusing mode setting part of focusing pattern; This control method comprises: slide at above-mentioned ring component under the situation of above-mentioned the 1st position, focus with the focusing pattern of setting at above-mentioned focusing mode setting part, slide at above-mentioned ring component under the situation of above-mentioned the 2nd position; Stop to be based on the focusing of the focusing pattern that above-mentioned focusing mode setting part sets, carry out the focusing of above-mentioned focusing with camera lens to the distance corresponding with the absolute position of above-mentioned ring component.
According to the present invention, can provide a kind of through the ring component of operation setting in lens barrel China, simply switch the control method of the optical device and the optical device of focusing pattern, can under the situation of not damaging system performance, realize the switching of focusing pattern.Can also set determined focal position, thereby can hope instantaneous shooting of the moment of taking the user.
Description of drawings
Fig. 1 is the block diagram of inner structure that the camera of an embodiment of the invention is shown.
Fig. 2 is the block diagram of main electrical structure that the camera of an embodiment of the invention is shown.
Fig. 3 is the vertical view of the lens barrel of the state that the MF ring is positioned at the 1st position in the camera of one embodiment of the present invention.
Fig. 4 is the vertical view of the lens barrel of the state that the MF ring is in the 2nd position in the camera of one embodiment of the present invention.
Fig. 5 is the stereographic map of the explanation state that the MF ring engages with the distance display ring in the camera of one embodiment of the present invention.
Fig. 6 is the stereographic map that the structure of the index location test section in the camera of one embodiment of the present invention is shown.
Fig. 7 is the sequential chart of an example that the synchronous communication of replacing camera lens and camera body in the camera of one embodiment of the present invention is shown.
Fig. 8 is the figure that is set at the situation that the scope focal modes photographs in the camera that relates to of expression an embodiment of the invention.
Fig. 9 is the process flow diagram of the photography action of the camera that relates to of expression one embodiment of the present invention.
Figure 10 is the process flow diagram of MF ring operation detection/action processing of the camera that relates to of expression one embodiment of the present invention.
Figure 11 is the process flow diagram of the MF timer processing of the camera that relates to of expression one embodiment of the present invention.
Figure 12 is automatic focusing (AF) pattern, manual focus (MF) pattern of the camera that relates to of one embodiment of the present invention, the state transition diagram of scope focusing (RF) pattern.
Embodiment
Below, used camera of the present invention according to the accompanying drawing use preferred implementation has been described.Fig. 1 is the block diagram of structure that the camera of one embodiment of the present invention is shown, and this camera is a digital camera, by camera body 100 with change camera lens 200 and constitute.Changing camera lens 200 assembles with the mode of detachable via the bayonet socket installation portion of camera body etc.And in this embodiment, camera body 100 constitutes with replacing camera lens 200 splits ground, but can certainly constitute one.
Dispose camera control circuit 101, imaging apparatus 103, focal-plane shutter 104 in the camera body 100, show with monitor 105, flashlamp 106, release-push 107, battery 108 etc.In addition, in changing camera lens 200, dispose lens control circuit 201, focusing lens 203, MF (Manual Focus, manual focus) ring 204, aperture 205 etc.
Focal-plane shutter 104 carries out on-off action according to the whole indications from the shutter control circuit in the camera control circuit 101 126 (referring to Fig. 2) of pressing based on release-push 107, to opening and closing from the object light Shu Jinhang that changes camera lens 200.This switching time is the corresponding time of shutter speed that calculates with camera control circuit 101.
Show with monitor 105 and constitute by the LCD that is disposed at the camera body back side etc., organic EL etc.Live view when showing when carrying out the photography standby of still image with monitor 105 with the dynamic image photography shows, with the finish reproduction demonstration of photographs of the corresponding record of operation of reproduction button etc., and according to the demonstration of carrying out set information in the menu screen etc. that operates in of menu button etc.
Release-push 107 has first release-push 132 (referring to Fig. 2) partly pressing and connect and further presses and become complete second release-push of on time connecting 133 (referring to Fig. 2) from half down state.When camera control circuit 101 is connected at first release-push 132, carry out AE (Auto Exposure, automatic exposure) action and AF (Auto Focus, focusing automatically) action and wait photography warming-up exercise sequence.In addition, when second release-push 133 was connected, control focal-plane shutter 104 etc. were obtained based on by the view data of subject image from imaging apparatus 103 grades, and execution is photographed this Imagery Data Recording to a series of photography action sequences in the recording medium.
The lens control circuit of changing in the camera lens 200 201 is made up of the ASIC and the peripheral circuit thereof that comprise camera lens CPU etc.According to from the indication of camera control circuit 101 or cameraman to the operation of MF ring 204, carry out the drive controlling of focusing lens 203, aperture 205 etc.Also, send various shot information such as focal length, setpoint distance, f-number according to request from camera control 101.This control is to carry out according to the program that is stored among the flash ROM (not shown).The back uses Fig. 2 to narrate the details of this lens control circuit 201.
Focusing lens 203 are regulated the focus condition of changing camera lens 200 according to moving at optical axis direction from the indication of lens control circuit 201.And what in this embodiment, explain is single-focus lens, but can certainly constitute through the variable zoom lens of focal length.
Then use Fig. 2 that the details of camera control circuit 101 and lens control circuit 201 is described.In camera control circuit 101, be provided with main body CPU 121, be connected with flash ROM (Read Only Memory) 121, RAM (Random Access Memory) 123, imaging apparatus control circuit 124, flash control circuit 125, shutter control circuit 126, image processing circuit 127, display circuit 128, operating switch testing circuit 129, power circuit 130 and telecommunication circuit 131 on this main body CPU 121.Between above various circuit and main body CPU121, carry out the input and output of various signals.
Flash ROM 122 is nonvolatile memories of can electricity rewriting, and as stated, storage is also stored various adjusted values etc. by the program that main body CPU 121 carries out.So long as nonvolatile memory gets final product, can adopt the storer beyond the flash ROM.RAM 123 is volatile memory that DRAM (Dynamic Random Access Memory) or SDRAM (Synchronous DRAM) etc. can electricity rewrite, and temporary transient storage is used for the various information handled at main body CPU121.
When the exposure of imaging apparatus control circuit 124 when live view demonstration, AE, AF, photography etc. needs the processing action of view data to carry out, make imaging apparatus 103 execution be used for shot object image is converted into the shooting action of picture signal.As shooting action, carry out the reading etc. of electric charge accumulation control and picture signal of imaging apparatus 103.
Flash control circuit 125 is connected with flashlamp 106, carries out charging, the light emitting control of flashlamp 106.Flash control circuit 125 carries out luminous quantity control to become correct exposure for example according to the lens location information of the focusing lens 203 that obtain from camera lens CPU 221.Shutter control circuit 126 is connected with focal-plane shutter 104, according to the shutter speed signal that comes autonomous agent CPU 121, carries out the open and close controlling of focal-plane shutter 104.
127 pairs of picture signals from imaging apparatus 103 outputs of image processing circuit are implemented Flame Image Process such as A/D conversion and Filtering Processing.And when implementing Flame Image Process, carry out the Flame Image Process that live view shows usefulness, on display monitor 105, carry out live view according to the picture signal after this processing and show.In addition, carry out the Flame Image Process of recording photographs, the Imagery Data Recording after this is handled is in recording medium (not shown).
In addition, 127 pairs of high fdrequency components of image processing circuit are carried out the high-pass filtering processing, thereby the picture signal in the focus detection zone is extracted processing, calculates the AF evaluation of estimate.Therefore, image processing circuit 127 performance is as the function of the focus detection portion that is used to carry out focus detection.In this embodiment, when focus detection, adopt known contrast AF, focusing lens 203 are moved, be that the position of peak value is as focusing position with the AF evaluation of estimate.And as focus detecting method, be not limited to contrast AF, can also adopt additive methods such as phase differential AF.
Operating switch testing circuit 129 be connected with first release-push 132 of release-push 107 interlock, second release-push 133, other detector switches (not shown), detect the mode of operation of these switches, testing result is exported to main body CPU 121.As other detector switches, exist the power switch of the power knob interlock of breaking off, the photograph mode switch that switches the photograph mode of camera, the reproduction button interlock that shows with the menu switch of the menu button interlock of display menu picture, with the reproduction of the photographs that is recorded in recording medium with the connection of carrying out power supply the reproduction switch, detect the installation switch of the confined state of changing camera lens 200, with the dynamic image switch of the dynamic image button interlock of the beginning of indication dynamic image photography and end etc.
In above-mentioned menu screen, carry out the setting of various photographic informations such as focusing pattern.As the focusing pattern of in menu screen, setting, in this embodiment, have these 2 kinds of autofocus mode (AF pattern) that carries out the focusing of focusing lens 203 automatically and the manual focus pattern (MF pattern) of manually focusing.And,, except as this embodiment, in menu screen, setting, can also additive method such as set through dedicated button etc. certainly and set about the setting of the focusing pattern of camera body 100.Operating switch testing circuit 129 and main body CPU121 etc. are arranged at the camera body side, and performance is as the function of the focusing mode setting part of setting the focusing pattern.
Camera body telecommunication circuit 131 has a plurality of communication terminal such as the synchronizing signal terminal that is arranged on the outside installation portion of camera body 200, data terminal.Main body CPU 121 and camera lens CPU 221 communicate through camera lens telecommunication circuit 229.Between camera body telecommunication circuit 131 and the camera lens telecommunication circuit 229 communicate by letter main body with change camera lens and just be based on asynchronous communication during fit on and carry out; After the camera body side has obtained to change the information of camera lens; As long as the replacing camera lens 200 that is assembled can carry out synchronous communication, then communicate based on synchronous communication.
In lens control circuit 201, be provided with camera lens CPU 221, be connected with lens driving circuit 222, lens location testing circuit 223, MF ring position testing circuit 224, MF position detecting circuit 225, index location testing circuit 226, aperture driving circuit 227, RAM 228, telecommunication circuit 229 on this camera lens CPU 221.
Camera lens CPU 221 according to be stored in be arranged at the program changed among the flash ROM (not shown) that the camera lens CPU 221 in the camera lens is connected and various adjusted value, from the output signal of lens location testing circuit 223, MF ring position testing circuit 224, MF position detecting circuit 225 and index location testing circuit 226 and the control command of coming autonomous agent CPU121, change the interior control of camera lens 200.Particularly, carry out the lens driving of focusing lens 203 and the various drive controlling such as aperture driving of aperture 205.Also, communicate, receive action command, the information of camera lens states such as the camera lens operating state of transmission expression replacing camera lens 200 and optical data from main body CPU 121 with main body CPU 121 via camera body telecommunication circuit 131 and camera lens telecommunication circuit 229.
Lens location testing circuit 223 carries out the position probing of focusing lens 203.This lens location testing circuit 223 constitutes and comprises the drivings such as stepper motor that lens driving circuit 222 is comprised convert umber of pulse into the rotation amount of motor optical chopper (PI) circuit.The position probing result of lens location testing circuit 223 is according to exporting from the umber of pulse of reference positions such as wireless side, and this umber of pulse is represented the absolute position of focusing lens 203.
MF ring position testing circuit 224 detects the sliding position of MF ring 204 on the optical axis direction of changing camera lens 200.That is, MF ring 204 can be free to travel to manual focus operation position (MF position, the 1st position) and these 2 positions of the focusing of the scope when the rear side of changing camera lens 204 slides operating position (RF position, the 2nd position) when the front side of changing camera lens 204 slides.MF ring position testing circuit 224 detects MF ring 204 and is in the 1st position or is in the 2nd position.The back uses Fig. 5 to narrate this position detecting mechanism.
MF position detecting circuit 225 constitutes and comprises the PI circuit, detects the relative position variable quantity of MF ring 204 with respect to the sense of rotation of the optical axis center of changing camera lens 200.Promptly; When the position of MF ring position testing circuit 224 detected MF rings 204 is in manual focus operation position (MF position, the 1st position); Can be according to pulse signal from PI circuit output, detect the sense of rotation, rotation amount, rotational speed of MF ring 204 etc.The detection of in the rotation of this MF ring 204 detects, using is a built-in timer common in the camera lens CPU 221 with the timer use.The back uses Fig. 5 to narrate the structure of the optical chopper of PI circuit.
And, will encircle 204 during at MF by slide to RF position (the 2nd position), control focusing lens 203 are called scope focal modes (RF pattern) so that be equivalent to by the pattern of the determined distance in absolute position of the sense of rotation of MF ring 204.What the detection of when reading this encoder values, using was used with the timing signal of timer is the camera lens communication synchronization signal that is used for carrying out synchronous communication between camera body 100 and the replacing camera lens 200.The structure of an example of testing agency of the index testing circuit 226 of linear encoder is used Fig. 6 to narrate to use in the back.
Camera lens telecommunication circuit 229 has a plurality of communication link connecting terminals such as being arranged at the synchronizing signal terminal changed on the outside installation portion of camera lens 200, data terminal, engages with the communication link connecting terminal of camera body telecommunication circuit 131, communicates with camera body.Via this camera lens telecommunication circuit 229, receive the focusing lens 203 of autonomous agent CPU 221 and the control command of aperture 205 etc., also camera lens status informations such as optical data, lens location information, operating state are sent to main body CPU 221.
And camera control circuit 101 is controlled cameras with the function of performance as control part jointly with lens control circuit 201.Promptly; This control part slides under the situation of the 1st position at MF ring (ring component) 204; Focusing pattern to set in the camera body side is focused; Slide under the situation of the 2nd position at MF ring 204, stop to be based on the focusing of the focusing pattern that the camera body side sets, focusing with the focusing of camera lens 203 with the corresponding distance in absolute position that MF ring 204 is set.
In addition; Camera control circuit 101 and lens control circuit 201 common control cameras; Thereby performance is as the function of the 1st camera lens control part and the 2nd camera lens control part; The 1st camera lens control part is based on the focusing operation of being undertaken by the parts beyond the MF ring 204; Rotating speed during according to the rotary manipulation of MF ring 204 and switch the focal position continuously, the 2nd camera lens control part switches and the corresponding focal position of operating position according to the position of MF ring 204 based on the focusing operation of being undertaken by the parts beyond the MF ring 204.Wherein, Control in the 1st camera lens control part particularly is equivalent to the control from the AF mode switch to the MF pattern; And operate as the focusing that the parts beyond the MF ring 204 carry out; Be not limited to the AF pattern, can also be manual focus operation that main body side carries out (after also identical in the 3rd camera lens control part stated).The control of the 2nd camera lens control part particularly is equivalent to the control under the RF pattern.
And then; Camera control circuit 101 and lens control circuit 201 common control cameras; Thereby performance is as the function of the 3rd camera lens control part and the 4th camera lens control part; The 3rd camera lens control part is operated according to the ring of focusing operation of being undertaken by the parts beyond the MF ring 204 or MF ring 204 and is switched the focal position, and no matter the 4th camera lens control part is the focusing operation of being undertaken by the parts beyond the MF ring 204, and switches and corresponding focal position, aforesaid operations position according to the position of the ring operation of MF ring 204.Wherein, the control of the 3rd camera lens control part particularly is equivalent to the control of AF pattern or MF pattern, and the control of the 4th camera lens control part particularly is equivalent to the control of RF pattern.
Then, use Fig. 3 and Fig. 4 that MF ring 204 slides to the 1st position and the 2nd position are described.Fig. 3 representes that MF ring 204 is in the situation of the 1st position, and Fig. 4 representes that MF ring 204 is in the situation of the 2nd position.
Rear side changing camera lens 200 is provided with bayonet part 21.This bayonet part 21 engages with the bayonet part of not shown camera body 100 sides, thereby can be assemblied in camera body 100 with changing camera lens 200.Pedestal 22 constitutes and bayonet part 21 one, and bayonet part 21 is fixed on the camera body 100 when being mounted to camera body 100.
The position of index display box 25 is fixing with respect to base portion 22, is the part of the exterior member of lens barrel.Index display box 25 also is disposed at the front side of MF ring 204 when MF ring 204 is in the 1st position (MF position).In this index display box 25, show index 25a and taken the photograph body depth index 25b.The reference index of distance scale 24a on the distance display ring 24 that index 25a states after representing to be arranged at, being taken the photograph body depth index 25b is the index that the depth of field corresponding with the f-number of aperture 205 is shown with respect to distance scale 24a.
Under state shown in Figure 3, if MF ring 204 is moved along optical axis O the 2nd position slip of side (shooting side, camera body side) rearward, then as shown in Figure 4, distance display ring 24 will expose.Distance display ring 24 is the parts roughly cylindraceous that are equipped on MF ring 204 inboards, when MF ring 204 is in the 1st position, can encircle 204 one with MF and move.Yet when MF ring 204 moved to the 2nd position, distance display ring 24 can encircle 204 with MF and rotate around optical axis O integratedly.
As shown in Figure 4, demonstrate the distance scale 24a of the distance (focusing from) of the focusing of expression focal length lens 203 at the outer peripheral face of distance display ring 24.Distance scale 24a arranges expression along Zhou Fangxiang and leaves to the numerical value of the distance of infinity from the shortest focusing.Distance display ring 24 rotates around optical axis O with respect to index display box 25, thereby makes the numerical value of the distance scale 24a that index 25a indicates change.
As above, in this embodiment, when MF ring 204 was in the 1st position (MF position), as shown in Figure 3, the distance scale 24a of distance display ring 24 was in the state that can't see from the outside of lens barrel.On the other hand, when MF ring 204 was in the 2nd position (RF position), as shown in Figure 4, distance scale 24a was in the state that can see from the outside of lens barrel.
As stated, distance display ring 24 only constitutes and is under the situation of the 2nd position at MF ring 204, rotates around optical axis O with MF ring 204, and when MF ring 204 was in the 1st position (MF position), MF ring 204 can be independent of distance display ring 24 and rotate.
That is, as shown in Figure 5, in the interior perimembranous of distance display ring 24 to be provided with engagement pin 24b to the outstanding mode of radially inner side.In addition, on the 204b of inboard cylinder portion of MF ring 204, dispose a plurality of holding section 204a.Be under the situation of the 1st position (MF position) at MF ring 204, engagement pin 24b is in the rear side of the holding section 204a of MF ring 204, rotates around optical axis O even be in MF ring 204, and engagement pin 24b can not produce the position of disturbing with holding section 204a yet.And be under the situation of the 2nd position (RF position) at MF ring 204, engagement pin 24b is disposed at the position that overlaps with holding section 204a.Therefore be under the situation of the 2nd position at MF ring 204; Distance display ring 24 rotates around optical axis O with MF ring 204, and is under the situation of the 1st position at MF ring 204, even MF ring 204 rotates around optical axis O; Distance display ring 24 can not rotate yet, and still stops.
Then, use Fig. 5 that the structure of the testing agency of MF ring position testing circuit 224 and MF position detecting circuit 225 is described.MF ring position testing circuit 224 has the 224a of optical chopper portion.The 224a of this optical chopper portion is fixed in base portion 22 or constitutes on the parts of one with base portion 22; It is arranged at like upper/lower positions: at least a portion that is positioned at MF ring 204 under the situation of the 2nd position at MF ring 204 enters into its sensing range, and under MF ring 204 is positioned at the situation of the 1st position, is in outside its sensing range.
And, in this embodiment, detect the position of MF ring 204 by the 224a of optical chopper portion, yet be not limited to optical chopper, as long as can detect the position of MF ring 204, can adopt other detecting sensors.For example can use Magnetic Sensor or switch etc.
MF position detecting circuit 225 has a pair of optical chopper 225a.In addition, encircling a plurality of slit pore 204c that upwards being provided with in week of the inboard cylinder 204b of 204 unitary rotation is provided at predetermined intervals with MF.A pair of optical chopper 225a is arranged on the position of the sensing range that under MF ring 204 is positioned at the situation of the 1st position (MF position), is in slit pore 204c.And, detect MF and encircle rotation status such as 204 rotation directions, amount of spin, rotational speed around optical axis O according to output signal from a pair of optical chopper 225a.
And the detecting sensor of MF position detecting circuit 225 for example can be a magnetic-type rotary encoder etc. as long as be positioned at the rotation that can detect MF ring 204 under the situation of the 1st position (MF position) at MF ring 204.
The testing agency that uses Fig. 6 that index location testing circuit 226 is described below.Index location testing circuit 226 has the 226a of scrambler portion.The 226a of this scrambler portion detects the absolute rotation position around optical axis O of distance display ring 24 with respect to base portion 22.The 226a of scrambler portion constitutes coding pattern 226b with the predetermined figure that is made up of electric conductor and the 226c of contact portion that is made up of the electric conductor that on coding pattern 226b, slides.
And,, can certainly adopt the scrambler structure in addition of contact point mode as long as index location testing circuit 226 can detect the absolute rotation position around optical axis O with respect to base portion 22.For example, both can be the rotary encoder that the absolute position detection of optical profile type or magnetic-type is used, also can be resistance value along with the pot that changes around the turned position of optical axis O of distance display ring 24.In addition, in this embodiment, when detecting the absolute position, in order to detect at a high speed, the camera lens communication synchronization signal during with the synchronous communication between camera body 100 and the replacing camera lens 200 is as timing (timing) signal that detects with timer.
Use Fig. 7 that one example of the synchronous communication of between camera body 100 and replacing camera lens 200, carrying out is described below.Among Fig. 7, the process of transverse axis express time, the longitudinal axis is represented each contents processing and timing.In in camera body, handling, among treatments B 1, the view data that is based on the former frame acquisition is carried out the demonstration of live view image and the calculating of AF evaluation of estimate.And in treatments B 2, the camera lens status data according to being obtained by the camera lens state communication carries out AF computing and various setting changes etc.
Vertical synchronizing signal is the signal of exporting corresponding to each frame.In shooting/readout, in imaging apparatus 103, take shot object image, carry out reading of this shot image data.And, make a video recording/read out in that the reason of example, diamond shaped is among Fig. 7, in this embodiment, adopt rolling shutter when obtaining the live view image, make a video recording successively and read according to each pixel column.
In the communication BL of camera lens communication, send camera lens status data request command from camera body 100 to changing camera lens 200, this command request is sent the data that the camera lens state of camera lens 200 is changed in expression to camera body 100.In addition, in communication LB,, change camera lens 200 sends data from expression camera lens state to camera body 100 according to camera lens status data request command.
In camera body 100, generate camera lens communication synchronization signal in response to vertical synchronizing signal, this camera lens communication synchronization signal outputs to replacing camera lens 200 by the synchronizing signal terminal of camera body telecommunication circuit 131.The state that lens location is obtained signal changed in the predetermined moment of substantial middle after the moment of regularly, for example in example shown in Figure 7, having passed through the electric charge accumulation time of imaging apparatus 103.
In addition, change processing L1 in the camera lens 200 and refer to the processing of detection of mode of operation of the MF ring 204 of obtaining and regularly carrying out in the reception of camera lens communication synchronization signal that obtains the positional information of the focusing lens 203 that the state variation of signal regularly carries out at lens location.Refer to the camera lens status data request command that receives according to from camera body 100 and handle L2, the processing of the camera lens status datas such as mode of operation of the positional information of transmission focusing lens 203 and MF ring 204.
Shown in the sequential chart of Fig. 7, in the synchronous communication of this embodiment, synchronously in camera body 100, carry out treatments B 1 with vertical synchronizing signal, and synchronously camera lens communication synchronization signal is sent to replacing camera lens 200 with vertical synchronizing signal.
When in camera body 100, having carried out treatments B 1, rely on communication BL to send camera lens status data request command to changing camera lens 200.When replacing camera lens 200 received camera lens status data request command, the detector lens state utilized communication BL to send the camera lens status data.Camera body 100 is carried out treatments B 2 after receiving the camera lens status data.
In addition, in changing camera lens 200, the processing L1 that obtains lens location obtains signal Synchronization with lens location and carries out.It is to take place in moment of 1/2 of electric charge accumulation time of the predetermined picture central authorities of in example shown in Figure 7, having passed through imaging apparatus 103 regularly, as stated that this lens location is obtained signal.Change camera lens 200 and obtain the timing of the state variation of signal obtains focusing lens 203 through lens location testing circuit 223 positional information at lens location.These synchronous communication integral body are carried out with camera lens communication synchronization signal Synchronization.
The focusing pattern of this embodiment then is described.In this embodiment,, autofocus mode (AF pattern), manual focus pattern (MF pattern) and these 3 kinds of patterns of scope focal modes (RF pattern) have been prepared as the focusing pattern.The AF pattern rely on to be used based on the hill climbing method from the contrast AF of the view data of imaging apparatus 103 and is carried out the focusing of focusing lens 203 automatically.And in the MF pattern, when MF ring 204 is positioned at the 1st position (MF position), manually rotate MF ring 204, according to rotation status at this moment focusing lens 203 are moved and focus.As stated, AF pattern and MF pattern are for example set in menu screen in camera body 100.
Relative therewith, in the RF pattern, when MF ring 204 is positioned at the 2nd position, MF ring 204 is rotated, make the distance scale 24a of distance display ring 24 aim at index 25a, thereby carry out distance setting, this setpoint distance is focused.In the RF pattern, deenergization after having set distance in advance, after this under the RF pattern during energized, can be to the distance focusing of prior setting.For example shown in Fig. 8 (a), when cameraman 301 takes a walk on street etc.,, also can photograph rapidly even then take the photograph under the situation that body 303 manifests suddenly at quilt as Fig. 8 (b) shown in if under the RF pattern, configure distance in advance.
In addition, under the RF pattern, set after the distance, made MF ring 204 slide into the 1st position (MF position), thereby switch under the situation of MF pattern or AF pattern,, then can focus to the distance that sets immediately if make MF ring 204 slide into the 2nd position.
Then, use the photography action of Fig. 9 to this embodiment of flowchart text shown in Figure 11.This process flow diagram mainly is to be carried out according to the program among the flash ROM 122 that is stored in the camera body 100 by main body CPU 121; And in a part of MF ring flow process that operation detection/action is handled; Under the situation of having set the RF pattern, mainly carry out according to the program that is stored among the flash ROM that changes in the camera lens 200 by camera lens CPU 221.
When operating switch testing circuit 129 detects when having operated power knob, process flow diagram shown in Figure 9 begins action.At first, judge whether assembling replacing camera lens 200 (S1).This judgement is to detect the state that switches etc. are installed by operating switch testing circuit 129, carries out according to this testing result.In this result of determination is under the situation of unassembled replacing camera lens 200, the holding state of the assembling of camera lens 200 to be replaced such as becomes.Carried out as cameraman in the standby process carrying out indicated action under the situation of the reproduction operation of the alter operation of photographic parameter and captured in the past photographs, the setting of focusing pattern etc.
The result who judges at step S1 is assemblied under the situation on the camera body 100 for changing camera lens 200, then carries out camera lens communication (S3).Wherein, via camera body telecommunication circuit 131 and camera lens telecommunication circuit 229, carry out asynchronous communication with camera lens CPU 221.Through this asynchronous communication, obtain the optical data such as action parameter, chromatic aberration etc. of focusing lens 203 grades lens data, can carry out the information of synchronous communication etc., and be stored in RAM123.
After having carried out camera lens communication, next begin synchronous communication (S5).Wherein, as use Fig. 7 is illustrated, send camera lens communication synchronization signals to changing camera lens 200, communicate with this signal Synchronization from camera body 100.Obtain the operating state of focusing lens 203 grades and the camera lens status datas such as mode of operation of MF ring 204 in each synchronizing cycle, carry out the control action corresponding with the camera lens state.Therefore when output lens communication synchronization signal; Camera body can both be obtained the data relevant with the lens location of focusing lens 203, MF ring 204 is positioned at the information such as f-number that the 1st position still is positioned at the 2nd position and aperture 205, carries out the control action corresponding with this information.Can also send the driving direction and drive amount and the control command relevant of the focusing lens 203 that are used to carry out AF control from camera body 100 with the aperture reductions of aperture 205.And learn under the situation of having assembled the replacing camera lens that can't carry out synchronous communication in the camera lens communication of carrying out through step S3, do not carry out synchronous communication.
Begun after the synchronous communication, then begun live view and show (S7).Main body CPU 121 makes imaging apparatus 103 in each action synchronizing cycle, obtains view data from imaging apparatus control circuit 124, in image processing circuit 127, implements the Flame Image Process that live view shows usefulness.Display circuit 128 is used for the live view demonstration and has passed through image data processed, and the beginning live view shows on showing with monitor 105.
After having begun the live view demonstration, next whether unloaded the judgement (S9) of changing camera lens 200.Wherein, according to the state of the synchronous communication that begins at step S5 and with the state of the same installation switch of step S1 among at least one side, judge and whether unloaded replacing camera lens 200.The result of this judgement has unloaded to change under the situation of camera lens 200, returns step S1.
Do not change camera lens 200 but assembling under the situation of changing camera lens 200 for unloading in the result of determination of step S9, next carry out the judgement (S11) whether power supply breaks off.Detect the mode of operation of power knobs at this moment by operating switch testing circuit 129, and judge according to this testing result.Under the situation of the result of this judgement for the power supply disconnection, carry out end process (S13).Wherein, carry out the processing such as cut-out processing of keeping out of the way processing, resetting action, power-supply system of various data.Carried out finishing after the end process this flow process.
In the result of determination of step S11 is under the power supply situation of not breaking off, and next carries out MF ring operation detection/action processing (S15).The mode of operation according to MF ring 204 carried out the action control of focusing lens 203 and set processing this moment.That is, be positioned at MF ring 204 under the situation of the 2nd position that has slided into the rear side (shooting side) of changing camera lens 200,, all carry out the RF pattern no matter in camera body 100, being set at the AF pattern still is the MF pattern.On the other hand, be positioned at MF ring 204 under the situation of the 1st position that has slided into the front side (object side) of changing camera lens 200, carry out corresponding to the AF pattern of in camera body 100, setting or the control of MF pattern.The back uses Figure 10 to narrate the MF ring details that operation detection/action is handled.
After having carried out MF ring operation detection/action processing, judge next whether the dynamic image switch connects (S17).Detect the mode of operation of dynamic image switches at this moment by operating switch testing circuit 129, and judge according to this testing result.
Result of determination at step S17 is broken off, promptly is under the situation of still image photograph mode for the dynamic image switch, judges whether the 1st release-push connects (S19).The cameraman carried out half push with as the preparatory stage to release-push before getting into photography.At this moment, operating switch testing circuit 129 detects the mode of operation of the 1st release-push, and judges according to this testing result.In this result of determination is under the situation of the 1st release-push disconnection, returns step S9.
Result of determination at step S19 is under the situation of the 1st release-push connection, next carries out still image photometry/AF (S21).Carry out the required actions of photography such as photometry, exposure computing, AF of still image photography usefulness this moment.Photometry and exposure computing detect and are taken the photograph body brightness according to from the view data of imaging apparatus 103, are taken the photograph the body brightness calculation and become the exposure control values such as shutter speed and f-number of correct exposure according to detected.In addition, the AF of still image photography usefulness carries out the AF action based on so-called hill climbing method so that the high fdrequency component (AF evaluation of estimate) that goes out from image data extraction is maximum mode.Can also carry out automatic focusing action based on phase differential AF.
After having carried out still image photometry/AF, judge next whether the 1st release-push breaks off (S23).The cameraman leaves hand release-push and ends the warming-up exercise of photographing sometimes partly pressing release-push with after preparing as photography.At this moment, operating switch testing circuit 129 detects the mode of operation of the 1st release-push, and judges according to this testing result.This result of determination is under the situation of the 1st release-push disconnection, the step S41 that states after the entering.
On the other hand, be under the 1st release-push situation not breaking off, promptly connect in the result of determination of step S23, next carry out the judgement (S25) whether the 2nd release-push is connected.The cameraman observes live view and shows, is confirming that composition and shutter after opportunity, press release-push, the execution that order is photographed entirely.At this moment, operating switch testing circuit 129 detects the mode of operation of the 2nd release-push, and judges according to this testing result.This result of determination is under the situation of the 2nd release-push disconnection, returns step S23.
Result of determination at step S25 is under the situation of the 2nd release-push connection, transferring to the photography action.(S27) at first makes a video recording.This moment is according to the exposure operation result that calculates at step S21; Communicate by main body CPU 121 and camera lens CPU 221; The aperture of indication aperture 205 dwindles action, dwindles action at aperture and finishes the back by the action of making a video recording of imaging apparatus control circuit 124, shutter control circuit 126 control imaging apparatuss 103 and focal-plane shutter 104.After the shooting release, handle and obtain view data by 127 pairs of picture signals of reading of image processing circuit from imaging apparatus 103.
After having carried out shooting, next carry out the storage (S29) of view data.The image data storage that this moment, main body CPU 121 obtained step S27 is in RAM 123 and Compact Flash exterior storage mediums such as (registered trademarks).Also according to the view data that is obtained, on showing, carry out the demonstration of photographs during at the fixed time via display circuit 127 with monitor.
Be to get into the dynamic image photograph mode under the situation of dynamic image switch connection in the result of determination of step S17.At first begin dynamic image photography (S31).Main body CPU 121 makes imaging apparatus 103 according to each action beginning synchronizing cycle dynamic image photography through imaging apparatus control circuit 124.Implement Flame Image Process to be used for dynamic image by 127 pairs of image processing circuits from the picture signals of imaging apparatus 103 outputs, begin this dynamic image with Imagery Data Recording in RAM 123 and Compact Flash exterior storage mediums such as (registered trademarks).
After having begun the dynamic image photography, next carry out MF ring operation detection/action and handle (S33).Likewise according to the mode of operation of MF ring 204 carry out the action control of focusing lens 203 and set processing with step S15 this moment.
After having carried out MF ring operation detection/action processing, next carry out dynamic image photometry (S35).As the AE of dynamic image photography usefulness, to control so that drive aperture 205 by aperture driving circuit 227 thinner actuation step when photograph than still image, the feasible object light quantitative changeization that incides imaging apparatus 103 becomes level and smooth.And when the AF pattern, dynamic image photography is carried out near focusing, making focusing lens 203 carry out the so-called wobbling action of trickle round driving etc. with the AF AF action of climbing the mountain as required.
After having carried out dynamic image photometry action, judge next whether the dynamic image switch breaks off (S37).When the cameraman was through with the dynamic image photography, hand can leave the dynamic image button, was therefore judged according to this testing result by the mode of operation of operating switch testing circuit 129 detection dynamic image switches this moment.If the result of this judgement is the dynamic image switch connection, then return step S33, proceed the dynamic image photography.
If the result of determination of step S37 is broken off for the dynamic image switch, then next carry out dynamic image photography end process (S39).At this moment, main body CPU 121 stops the action of imaging apparatus 103 through imaging apparatus control circuit 124, finishes the dynamic image photography.
In step S29, carried out after the storage of view data or step S39 carried out that the dynamic image photography finishes or step S23 in result of determination be under the 1st release-push situation of breaking off, the initialization that then shows (S41).This moment, main body CPU 121 carried out the removing of photographs demonstration and the demonstration of dynamic image photographic parameter etc. through display circuit 127, made the demonstration that shows with monitor 105 revert to the live view demonstration.Return step S9 after the initialization of having carried out showing.
Then, use MF ring operation detection/action processing among flowchart text step S15 shown in Figure 10 and the S33.And the action of the flow process that the detection/action of MF ring is handled is under the control of main body CPU 121, to be carried out by camera lens CPU221, when carrying out the RF pattern, is mainly carried out the action of this flow process by camera lens CPU 221.After getting into the MF ring flow process that operation detection/action is handled, at first carry out the judgement (S51) whether MF ring 204 is in the RF position.Detect MF by MF ring position testing circuit 224 and encircle 204 position this moment, judges whether be in RF position (scope focusing position, the 2nd position) according to this testing result.
Be under the situation of RF position if the result of determination of step S51 is a MF ring 204, next the timing at L1 is provided with range index setting mark (S53).As use Fig. 7 illustrated, the timing of L1 is to changing the timing that camera lens 200 sends camera lens communication synchronization signals by camera body 100.And range index setting mark is to represent that MF ring 204 slides into the RF position, is set at the mark of RF pattern.
Then, judge whether focusing is set is AF (S55).In this embodiment, the focusing of changing camera lens 200 exists AF pattern, MF pattern, RF pattern as stated, and wherein AF pattern and MF pattern are to set on the menu screen on the monitor 15 in the demonstration that is shown in camera body 100.In this step, judge the AF pattern of on menu screen, whether having set.And the cameraman sets sometimes, thereby preset any pattern is as default option.
If the result of determination of step S55 is to have set under the situation of AF pattern, next stop the reception (S57) of camera lens steering order.Owing in above-mentioned steps S51, set the RF pattern, even thereby be set at from camera 100 and send the camera lens steering orders to changing camera lens 200, change camera lens 200 and also do not receive the camera lens steering order.And being redefined for camera body 100 can receive from the lens location of changing camera lens 200 and obtain information such as signal.Through obtaining lens location information, thereby when carrying out the control of flashlamp 106, can consider the luminous quantity control of range information etc.
If it is not under the situation of AF pattern that the result of determination of step S55 is set for focusing, next close the rotation sensor (S59) of MF ring 204.The result of determination of step S55 is for to have set the MF pattern in camera body 100 sides.Yet because MF ring 204 is positioned at RF position (the 2nd position) in changing camera lens 200, be set the RF pattern, also need not to detect rotary state even therefore MF ring 204 is carried out rotating operation.Use sensor, i.e. optical chopper 225a (referring to Fig. 5) so close the rotation detection of MF ring 204.
Then carry out MF timer processing (S61).This moment is according to from the output of optical chopper 225a, is used to measure the timer processing of the slit pore 204c of MF ring 204.The back uses Figure 11 to narrate the MF timer processing.
After having carried out the MF timer processing, the rotation that next stops MF ring 204 detects (S63).Use sensor owing in step S59, having closed to detect, be through with at step S61 and rotate the timer that detects usefulness, thereby in this step, stop the rotation detection action of MF ring 204.
In step S57, when the reception that has stopped the camera lens steering order or step S63 carried out MF ring rotation detect stop after, then carry out read (S65) of RF desired location in the timing of L1.Read the distance scale 24a with respect to index 25a by the 226a of scrambler portion this moment as use Fig. 6 is illustrated.When the 226a of this scrambler portion reads, camera lens communication synchronization signal is used as the timing signal that detects with timer.Frame synchronization when camera lens communication synchronization signal and imaging apparatus 103 shootings, speed is faster than the built-in timer of camera lens CPU221.Even therefore do not set up timer counter, the high-speed counter in the time of also reading as the 226a of scrambler portion.Can also this RF setting value that reads be stored in the flash rom of changing in the camera lens 200, for example can be as the preset value of realizing through the main body side operation to the activation point of range index position.
After reading out the RF desired location, next carry out lens driving (S67) to the RF desired location.At this moment, camera lens CPU221 makes focusing lens 203 be actuated to make the distance to corresponding with the RF desired location that reads out at step S65 to focus.In this step S67, through using camera lens communication synchronization signal, can carry out the drive controlling of focusing lens 203 at a high speed, after the cameraman turns to the RF desired location with MF ring 204, can focus to desired location rapidly.
If the result of determination of step S51 is a MF ring 204 when not being present in the RF position, next removes range index and set mark (S71) in the timing of L1.Because MF ring 204 is not positioned at RF position (the 2nd position), has removed the RF pattern, thereby the range index that in step S53, is provided with is set mark reset.
Then, with step S55 likewise, judge whether focusing is set is AF pattern (S73).Result in this judgement has set under the situation of AF pattern, next begins the reception (S75) of camera lens steering order.Owing in above-mentioned steps S51, do not set the RF pattern, therefore from camera 100 when changing camera lens 200 and send the camera lens steering orders, be set at the camera lens CPU221 that changes camera lens 200 and receive the camera lens steering order.
On the other hand, if the result of determination among the step S73 has promptly been set under the situation of MF pattern for not set under the situation of AF pattern, next open the rotation sensor (S77) of MF ring 204.When carrying out the MF pattern as the focusing pattern, rotation status such as the sense of rotation of detection MF ring 204, rotation amount, rotational speed drive focusing lens 203 according to this testing result by camera lens CPU221.In this step, open the sensor of the rotation status that is used to detect MF ring 204, i.e. optical chopper 225a (referring to Fig. 5).
When having opened the rotation sensor of MF ring 204, next carry out MF timer processing (S79).The timer processing that is used for the rotation detection of MF ring 204 this moment.And set with RF and compare this moment, little with the necessity that reads at a high speed, thereby use the built-in timer of camera lens CPU221 to carry out the timer counting.The back uses Figure 11 to narrate the detailed action of this MF timer processing.
After having carried out the MF timer processing, the rotation that next begins MF ring 204 detects (S81).The output of optical chopper 255a according to MF ring 204 integratedly the slit pore 204c of rotation action and change, therefore detect the rotation status of MF ring 204 according to the output of optical chopper 255a.Camera lens CPU221 carries out the drive controlling of focusing lens 203 according to this detected rotation status.
Begun that MF ring rotation detects or begun the reception of camera lens steering order or carried out after the lens driving to the RF desired location at step S81, finished MF ring operation detection/action and handle, returned the flow process of script at step S67 at step S75.
Use the detailed action of MF timer processing among flowchart text step S61 shown in Figure 11 and the S79 below.This MF timer processing is when detecting the rotation status such as sense of rotation, rotation amount and rotational speed of MF ring 204, carries out the timer processing of the timer counter that the clock that in changing camera lens 200, produces is counted.
After entering into the flow process of MF timer processing shown in Figure 11, at first judge likewise with step S51 whether MF ring 204 is positioned at RF position (S91).This moment, the position Detection result according to MF ring 204 judged whether to be positioned at RF position (scope focusing position, the 2nd position).
Be not positioned under the situation of RF position if the result of determination of step S91 is a MF ring 204, judge whether the counting of MF timer counter finishes (S93).Beginning MF timer counting in next step S95 judges whether this MF timer counting finishes.Under the situation that this result of determination finishes for MF timer counting, the rotation of beginning MF ring 204 detects the timer counting (S95) of usefulness.And this MF timer counting is the counting that in camera lens CPU221, uses the clock of camera lens CPU.
Result of determination at step S91 is that MF ring 204 is under the situation of RF position, and the rotation that finishes MF ring 204 detects timer counting (S97).Be positioned under the situation of RF position at MF ring 204, rely on the 226a of scrambler portion (referring to Fig. 6), do not detect the relative rotation amount of MF ring 204 carrying out the focusing of focusing lens 203 with the corresponding position of absolute distance of MF ring 204 expressions.The rotation that finishes MF ring 204 then detects the timer counting.
Result of determination at timer counting that has begun step S95 or step S93 is counted under the situation that the timer counting has finished among not end or the step S97 for the MF timer, finishes the MF timer processing, returns flow process originally.
As above, in this embodiment, when focusing, have AF pattern, MF pattern, these 3 kinds of patterns of RF pattern.Use Figure 12 that the switching of these 3 kinds of patterns is described.In Figure 12, state 1 is the AF pattern, and state 2 is MF patterns, and state 3 is RF patterns.Wherein, AF pattern and MF pattern can be set on the menu screen of camera body 100 as stated, and the RF pattern can be set through making MF ring 204 slips of changing camera lens 200 move to the 2nd position.
The AF pattern of state 1 is set and is kept as focusing on the menu screen of camera body 100 and sets the AF pattern, and MF ring 204 is positioned under the situation of MF position (the 1st position) and keeps the AF pattern.The MF pattern of state 2 is kept in camera body 100 sides and is set the MF pattern, and MF ring 204 is positioned under the situation of MF position (the 1st position) and keeps the MF pattern.
For MF pattern,, set as focusing in camera body 100 sides and to change to the MF pattern and get final product as long as MF ring 204 is being maintained under the state of MF position (the 1st position) from the AF mode switch of state 1 to state 2.Otherwise for from the MF mode switch to the AF pattern, as long as, change to the AF pattern and get final product in that MF ring 204 is maintained under the state of MF position (the 1st position).
For RF pattern, only MF is encircled 204 slides to RF position (the 2nd position) and get final product, the change that does not need the focusing of camera body 100 to set from AF mode switch to the state 3 of state 1.Otherwise for AF pattern, need MF be encircled 204 slides to MF position (the 1st position), and set the AF pattern that changes to as the focusing of camera body 100 from RF mode switch to the state 1 of state 3.
For RF pattern, only MF is encircled 204 slides to RF position (the 2nd position) and get final product, the change that does not need the focusing in the camera body 100 to set from MF mode switch to the state 3 of state 2.Otherwise for MF pattern, need MF be encircled 204 slides to MF position (the 1st position), and set the AF pattern that changes to as the focusing in the camera body 100 from RF mode switch to the state 2 of state 3.
As stated; In an embodiment of the invention; Have AF pattern, MF pattern, these 3 kinds of focusing patterns of RF pattern; Wherein, be set in the 1st position, and set any pattern in camera body 100 sides and get final product as long as AF pattern and MF pattern will be arranged at the MF ring of changing in the camera lens 200 204.And the setting of the focusing pattern of RF pattern and camera body 100 sides is irrelevant, only is set in the 2nd position and just can sets through being arranged at the MF ring of changing in the camera lens 200 204.In being equipped with the camera of changing camera lens, camera was master side in the past, changed camera lens and was in subordinate relation usually.Yet in this embodiment, after replacing camera lens side had been set the RF pattern, for focusing, changing the camera lens side just became master side.Therefore can carry out the focusing of RF pattern rapidly.That is, through the ring component (MF ring) of operation setting in changing camera lens, the focusing pattern can automatically switch.
In addition, in an embodiment of the invention, can be rotated operation and these 2 kinds of operations of slide as the MF of ring component ring 204.And the distance setting when manual focusing can carry out the MF pattern through rotary manipulation time the and RF pattern, can carry out the setting of RF pattern through slide.Therefore the cameraman only through concentrate on one side view finder etc. operate MF encircle 204 just can focus pattern rapidly switching and distance adjustment.
In addition, in an embodiment of the invention, the manual focusing parts when becoming the MF pattern in the 1st position, and the distance setting parts when becoming the RF pattern in the 2nd position as the MF of ring component ring 204.Therefore can be also used as the adjusting parts that possess 2 kinds of functions with 1 ring component, can realize miniaturization.
And, in an embodiment of the invention, switch AF pattern and this two side of MF pattern in camera body 100 sides; And in camera body 100 sides; Be not limited to these 2 kinds as the focusing pattern, can set other focusing patterns, can also only comprise the arbitrary side in AF pattern and the MF pattern.
In addition, mobile between the 1st position and these 2 positions, the 2nd position as the MF of ring component ring 204 in an embodiment of the invention, and other positions such as the 3rd position can certainly be set.
In addition; In an embodiment of the invention, as the equipment that is used to photograph, use digital camera to be illustrated; But as camera; Personal digital assistant) or the camera in the game station etc. can be digital single-lens reflex camera and pocket digital camera, can be the camera that video camera, the such dynamic image of kinematograph are used, and certainly be to be built in mobile phone, portable information terminal PDA (Personal Digital Assist:.
In addition, about the motion flow in claim, instructions and the accompanying drawing,, use the language of performance orders such as " at first ", " following " to be illustrated, but be not meant and implement in proper order by this even for ease.
The present invention directly is not defined as above-mentioned each embodiment, the implementation phase can be in the scope that does not break away from its purport textural element be out of shape and specialize.In addition, can form various inventions through the appropriate combination of the disclosed a plurality of textural elements of above-mentioned embodiment.For example, can delete several textural elements in the entire infrastructure key element shown in the embodiment.And, but the textural element of the different embodiments of appropriate combination.
Claims (12)
1. optical device, it has:
Camera lens is used in focusing, and it is arranged in the lens barrel;
Ring component, it sets to rotating freely with respect to above-mentioned lens barrel, and can be free to slide to the 1st position and the 2nd position;
The focusing mode setting part, it is arranged at the camera body side, sets the focusing pattern; And
Control part; It is focused with the focusing pattern of in above-mentioned focusing mode setting part, setting when above-mentioned ring component slides into above-mentioned the 1st position; When above-mentioned ring component slides into above-mentioned the 2nd position, stop to be based on the focusing of the focusing pattern of setting in the above-mentioned focusing mode setting part, carry out the focusing of above-mentioned focusing with camera lens to the distance corresponding with the absolute position of above-mentioned ring component.
2. optical device according to claim 1, wherein,
Above-mentioned focusing mode setting part can be set the manual focus pattern,
Slide under the situation of above-mentioned the 1st position having set above-mentioned manual focus pattern and above-mentioned ring component, above-mentioned control part carries out the focusing of above-mentioned focusing with camera lens according to the rotation of above-mentioned ring component.
3. optical device according to claim 2; Wherein, When being positioned at above-mentioned the 1st position at above-mentioned ring component, having set above-mentioned manual focus pattern and just manually carrying out above-mentioned focusing with the focusing of camera lens according to the rotation of above-mentioned ring component; If above-mentioned ring component slides into above-mentioned the 2nd position, then above-mentioned control part stops manual focus, carries out the focusing of above-mentioned focusing with camera lens according to the distance corresponding with the absolute position of above-mentioned ring component.
4. optical device according to claim 2; Wherein, When above-mentioned ring component is positioned at above-mentioned the 2nd position and is just carrying out above-mentioned focusing with the focusing of camera lens according to the distance corresponding with the absolute position of above-mentioned ring component; If above-mentioned ring component slides into above-mentioned the 1st position, then to have set under the situation of above-mentioned manual focus pattern at above-mentioned focusing mode setting part, above-mentioned control part manually carries out the focusing of above-mentioned focusing with camera lens according to the rotation of above-mentioned ring component.
5. optical device according to claim 1, wherein,
Above-mentioned optical device has the focus detection portion that is used to carry out focus detection,
Above-mentioned focusing mode setting part can be set autofocus mode,
Slide under the situation of above-mentioned the 1st position having set above-mentioned autofocus mode and above-mentioned ring component, no matter above-mentioned control part is the rotation of above-mentioned ring component, and according to the detection of above-mentioned focus detection portion, carries out the focusing of above-mentioned focusing with camera lens.
6. optical device according to claim 5; Wherein, When being positioned at above-mentioned the 1st position at above-mentioned ring component, having set above-mentioned autofocus mode and just carrying out above-mentioned focusing with the focusing of camera lens automatically according to the detection of above-mentioned focus detection portion; If above-mentioned ring component slides into above-mentioned the 2nd position, then above-mentioned control part stops the focusing based on the auto-focus detection, carries out the focusing of above-mentioned focusing with camera lens according to the distance corresponding with the absolute position of above-mentioned ring component.
7. optical device according to claim 5; Wherein, When above-mentioned ring component is positioned at above-mentioned the 2nd position and is just carrying out above-mentioned focusing with the focusing of camera lens according to the absolute distance of above-mentioned ring component,, then set under the situation of above-mentioned autofocus mode at above-mentioned focusing mode setting part if above-mentioned ring component slides into above-mentioned the 1st position; Above-mentioned control part carries out the focusing of above-mentioned focusing with camera lens automatically according to the detection of above-mentioned focus detection portion.
8. optical device, it has:
Camera lens is used in focusing, and it is used for focusing;
Ring component, it sets to rotating freely with respect to lens barrel;
The 1st camera lens control part, the focusing operation that it carries out according to the parts beyond the above-mentioned ring component, the rotating speed during according to the rotary manipulation of above-mentioned ring component switches the focal position continuously; And
The 2nd camera lens control part, it, switches and corresponding focal position, aforesaid operations position according to the position of above-mentioned ring component according to the focusing operation that the parts beyond the above-mentioned ring component carry out.
9. optical device according to claim 8; Wherein, Above-mentioned ring component can be free to slide to the 1st position and the 2nd position on the optical axis direction of above-mentioned lens barrel; When being positioned at above-mentioned the 1st position, carry out the control of above-mentioned the 1st camera lens control part, when being positioned at above-mentioned the 2nd position, carry out the control of above-mentioned the 2nd camera lens control part.
10. optical device, it has:
Camera lens is used in focusing, and it is used for focusing;
Ring component, it sets to rotating freely with respect to lens barrel;
The 3rd camera lens control part, it switches the focal position according to the ring operation of focusing operation of being undertaken by the parts beyond the above-mentioned ring component or above-mentioned ring component; And
The 4th camera lens control part, the focusing operation that it carries out regardless of the parts beyond the lens assembly, and switch and corresponding focal position, aforesaid operations position according to the position that the ring of above-mentioned ring component is operated.
11. optical device according to claim 10; Wherein, Above-mentioned ring component can be free to slide to the 1st position and the 2nd position on the optical axis direction of above-mentioned lens barrel; When being positioned at above-mentioned the 1st position, carry out the control of above-mentioned the 1st camera lens control part, when being positioned at above-mentioned the 2nd position, carry out the control of above-mentioned the 2nd camera lens control part.
12. the control method of an optical device, this optical device has: camera lens is used in the focusing that is arranged in the lens barrel; Set to rotating freely and can be free to slide to the ring component of the 1st position and the 2nd position with respect to above-mentioned lens barrel; And be arranged at the camera body side, and set the focusing mode setting part of focusing pattern, wherein, this control method comprises:
Slide at above-mentioned ring component under the situation of above-mentioned the 1st position, focus with the focusing pattern of in above-mentioned focusing mode setting part, setting,
Slide at above-mentioned ring component under the situation of above-mentioned the 2nd position, stop to be based on the focusing of the focusing pattern of setting in the above-mentioned focusing mode setting part, carry out the focusing of above-mentioned focusing with camera lens to the distance corresponding with the absolute position of above-mentioned ring component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011-139640 | 2011-06-23 | ||
| JP2011139640A JP5806521B2 (en) | 2011-06-23 | 2011-06-23 | Optical equipment |
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| Publication Number | Publication Date |
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| CN102841428A true CN102841428A (en) | 2012-12-26 |
| CN102841428B CN102841428B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210212210.8A Expired - Fee Related CN102841428B (en) | 2011-06-23 | 2012-06-21 | The control method of optical device and optical device |
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| Country | Link |
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| JP (1) | JP5806521B2 (en) |
| CN (1) | CN102841428B (en) |
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| CN105182497A (en) * | 2014-06-09 | 2015-12-23 | 佳能株式会社 | Lens apparatus and optical apparatus |
| CN105578031A (en) * | 2014-10-29 | 2016-05-11 | 佳能株式会社 | Image capturing accessory, image capturing apparatus and control method thereof |
| CN106772924A (en) * | 2017-03-01 | 2017-05-31 | 华中光电技术研究所（中国船舶重工集团公司第七七研究所） | The debugging apparatus and adjustment method of a kind of continuous zooming optical camera motion component |
| CN107111094A (en) * | 2014-12-26 | 2017-08-29 | 富士胶片株式会社 | Lens barrel and its control method, camera main-body and its control method and camera and its control method |
| WO2019024400A1 (en) * | 2017-07-31 | 2019-02-07 | 深圳市大疆创新科技有限公司 | Control apparatus, lens apparatus, photographing apparatus, control method, and program |
| CN110832839A (en) * | 2018-10-10 | 2020-02-21 | 深圳市大疆创新科技有限公司 | Manual focusing control method, device, equipment, system and storage medium |
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| JP6560018B2 (en) * | 2015-04-28 | 2019-08-14 | オリンパス株式会社 | Interchangeable lens camera system, interchangeable lens, and lens control method |
| CN107295253A (en) * | 2017-06-19 | 2017-10-24 | 信利光电股份有限公司 | A kind of focus adjustment method of camera module |
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| CN105182497A (en) * | 2014-06-09 | 2015-12-23 | 佳能株式会社 | Lens apparatus and optical apparatus |
| CN105182497B (en) * | 2014-06-09 | 2019-05-28 | 佳能株式会社 | Lens devices and Optical devices |
| CN105578031A (en) * | 2014-10-29 | 2016-05-11 | 佳能株式会社 | Image capturing accessory, image capturing apparatus and control method thereof |
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| CN107111094A (en) * | 2014-12-26 | 2017-08-29 | 富士胶片株式会社 | Lens barrel and its control method, camera main-body and its control method and camera and its control method |
| CN107111094B (en) * | 2014-12-26 | 2018-07-10 | 富士胶片株式会社 | Lens barrel and its control method, camera main-body and its control method and camera and its control method |
| CN106772924A (en) * | 2017-03-01 | 2017-05-31 | 华中光电技术研究所（中国船舶重工集团公司第七七研究所） | The debugging apparatus and adjustment method of a kind of continuous zooming optical camera motion component |
| WO2019024400A1 (en) * | 2017-07-31 | 2019-02-07 | 深圳市大疆创新科技有限公司 | Control apparatus, lens apparatus, photographing apparatus, control method, and program |
| CN110249618A (en) * | 2017-07-31 | 2019-09-17 | 深圳市大疆创新科技有限公司 | Control device, lens assembly, photographic device, control method and program |
| CN110249618B (en) * | 2017-07-31 | 2021-08-20 | 深圳市大疆创新科技有限公司 | Control device, lens device, imaging device, control method, and program |
| CN110832839A (en) * | 2018-10-10 | 2020-02-21 | 深圳市大疆创新科技有限公司 | Manual focusing control method, device, equipment, system and storage medium |
| CN110832839B (en) * | 2018-10-10 | 2021-12-10 | 深圳市大疆创新科技有限公司 | Manual focusing control method, device, equipment, system and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5806521B2 (en) | 2015-11-10 |
| CN102841428B (en) | 2016-01-20 |
| JP2013007840A (en) | 2013-01-10 |
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