CN1258283C - Photographic equipment and its control method - Google Patents
Photographic equipment and its control method Download PDFInfo
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- CN1258283C CN1258283C CN 200310101520 CN200310101520A CN1258283C CN 1258283 C CN1258283 C CN 1258283C CN 200310101520 CN200310101520 CN 200310101520 CN 200310101520 A CN200310101520 A CN 200310101520A CN 1258283 C CN1258283 C CN 1258283C
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Abstract
To properly control a shape-changeable mirror linked with power varying adjustment of a photography system, with respect to imaging equipment equipped with a finder with the shape-changeable mirror mounted thereon. The equipment is equipped with a photography part 1 comprising a photography optical system 3 composed of 1st and 2nd shape-changeable mirrors A and B arranged opposite to a free curved-surface lens 2, an imaging element, and 1st and 2nd mirror drivers 5 and 6 driving the shape-changeable mirrors A and B, a finder optical system 16 comprising an objective 12, 3rd and 4th shape-changeable mirrors C and D, a roof prism 14, and an ocular 15, and a finder part 1 comprising 3rd and 4th mirror drivers 16 and 17 driving the shape-changeable mirrors C and D; and power varying adjustment of the photography system is carried out by adjusting the shapes of the shape-changeable mirrors A and B by the mirror drivers through a CPU 21 according to a power variation indication from an operation part 22 and associatively with that, power varying adjustment of the optical fiber is performed by adjusting the shapes of the shape-changeable mirrors C and D.
Description
Technical field
The present invention relates to have the picture pick-up device of optical finder, this optical finder has deformable mirror, particularly doubly adjusts interlock with the change of camera chain, picture pick-up device and control method thereof that the deformable mirror of optical finder is suitably controlled.
Background technology
Patent documentation 1: the spy opens flat 11-317894 communique
Patent documentation 2: the spy opens the 2002-122784 communique
In general, in picture pick-up devices such as digital camera, be provided with doubly (Zoom) function of change in the camera chain mostly.This is because by anamorphosis function, can freely set the angle of visual field.As becoming a times unit two classes are arranged: optics becomes times unit, and it moves a part of lens in photographic optical system inside to change focal length; Electronics becomes times unit (electronic zoom), and it shears out a part of view data, and the image processing such as the enterprising row interpolation of image being sheared make the expanded view picture.In addition, when low range, use optics to become times unit, when high magnification, electronics is become times cells overlap become on times unit, can realize bigger change times multiplying power to optics.
, in the optical finder of the picture pick-up device with anamorphosis function, the angle of visual field must be consistent with the angle of visual field of camera chain.Therefore, the part of the driver element of the change times unit that constitutes camera chain is connected with the change times mechanism of view finder system, doubly move the change times mechanism of mobile optical view finder in linkage with the change of the change times unit of camera chain, both angles of visual field are consistent.But, because optical finder can not be corresponding with the electronic zoom of camera chain, when using electronic zoom, show sometimes, inconsistent with the prompting angle of visual field.
In addition, do not proofread and correct because common optical finder is not carried out focusing position, focus is more or less fuzzy to be very common.This is because if the focusing aligning gear is set in optical finder, can make volume become big.In addition, if the mechanism to the interlock of poly-mechanism of setting and phtographic lens, structure can complicate.
On the other hand, scheme as the optical system little power consumption that makes camera chain or optical finder, this case applicant has proposed a kind of existing new mode with the motor-driven lens that replaces that adopts in the spy opens flat 11-317894 communique (patent documentation 1) etc., that is, use the optical system of deformable mirror.Below, according to an example of the deformable mirror that proposes in Figure 24 (A), the above-mentioned communique of (B) simple declaration etc.Figure 24 (A) is a plane graph, and Figure 24 (B) is the profile along the X-X ' direction of Figure 24 (A).Shown in Figure 24 (A), (B), deformable mirror 101 constitutes in the following way: a side extending projection at collar plate shape substrate 102 is provided with ring-type supporting walls 103, in by these ring-type supporting walls 103 area surrounded, setting is by three peripheral electrode 104A, 104B, 104C and the fixed electrode that central electrode 104D constitutes, at the openend joint of ring-type supporting walls 103 and the peripheral part of stationary mirror main body 105.
Three peripheral electrode 104A, 104B, 104C are made of the circular-arc battery lead plate by the setting of about hexagonal angle scope respectively.Central electrode 104D is made of the discoideus battery lead plate that is set in place in the border circular areas in described three peripheral electrode 104A, 104B, 104C centre.The pattern of fixed electrode is not limited to the diagram figure, can adopt various forms of patterns.Speculum main body 105 for example, constitutes at the lateral surface lining double as movable electrode of the discoid dish that is formed by polyimide resin and the aluminium of reflection part (mirror surface).
The deformable mirror 101 of Gou Chenging like this is in that (104A～104D) and when applying assigned voltage between the movable electrode (speculum main body 105) by this electrostatic force, controls the curved shape of reflecting surface (speculum main body 105) changeably to described fixed electrode.Thereby, carry out voltage control from the outside, make reflecting surface reach suitable curvature.
Below, another that deformable mirror is described according to Figure 25 (A), (B) constitutes example.This formation example is the deformable mirror of electromagnetic drive type, and Figure 25 (A) is a side cross-sectional views, and Figure 25 (B) is the inside figure of speculum main body.This electromagnetic drive type deformable mirror 201 is provided with ring-type supporting walls 203 at a side upper process of substrate 202, in by these ring-type supporting walls 203 area surrounded, a plurality of permanent magnets 204 are set, and the peripheral part of speculum main body 205 is engaged the openend that is fixed on ring-type supporting walls 203.Speculum main body 205 for example, is by deformable discoid dishes such as polyimide resins, and side (the inside) forms a plurality of coils 206 within it, forms the reflectance coating 207 that is coated with aluminium at its lateral surface.By lead, supply with Control current to each coil 206 respectively from external drive circuit 208.
By supplying with the suitably electric current of control to the coil 206 of the speculum main body 205 of the deformable mirror 201 of such formation from external drive circuit 208, attraction or repulsive force that the electromagnetic force that utilization produces between the magnetic field of electric current that flows to coil 206 and permanent magnet 204 forms, the warpage that makes speculum main body 205 is concavity or convex.
The coil 206 that is located on the speculum main body 205 is formed by film, makes easily, and can reduce the coil self rigidity, and institute is so that speculum main body 205 easy deformation.In addition, also can form permanent magnet is located at the speculum main body side, coil is located at structure on the substrate.In addition,, also have the speculum main body to use piezoelectric, the speculum that utilizes piezoelectric effect to realize being out of shape etc. as deformable mirror.
The deformable mirror that constitutes like this is configured in the optical system of camera,, can changes the curvature of speculum main body, focus, become doubly operation by applying voltage or Current Control.The shape of speculum main body is not limited to circle, also can be oval.The deformable mirror of Gou Chenging has two big features like this, be that power consumption ratio motor-driven lens optical system in the past is low, in addition, the motor sound of motor-driven lens optical system in the past and the noise of drive system are big, and deformable mirror does not have sound substantially.
In addition, open in the 2002-122784 communique (patent documentation 2) the spy, this case applicant is photographic optical system optical texture and the optical finder optical texture to deformable mirror is installed also, has proposed various motions.
; as mentioned above; the camera chain of the type of the existing zoom function interlock that makes optical finder with zoom function and camera chain; become doubly and the camera chain of electronic zoom and usefulness type with respect to optics, exist the problem of the four corner that can not doubly adjust corresponding to the change of camera chain.On the one hand, if special-purpose zoom drive motor is set in optical finder, though can corresponding have the four corner that the change of the camera chain of electronic zoom is doubly adjusted, but have power consumption, the disadvantageous problem in aspect, space of motor special.In addition, not the optical finder of single anti-type, outside specific range, can there be the fuzzy and problem that is difficult to observe affirmation of focus.
In addition, have the picture pick-up device of the optical finder that deformable mirror is installed, though have the effect of low power consumption, corresponding for the anamorphosis function of camera chain must have new control.But, in above-mentioned disclosed existing motion, consider to be equipped with the control of corresponding relation of the anamorphosis function of the optical finder of deformable mirror and camera chain.
The present invention is in order to solve existing picture pick-up device or to use the problems referred to above point in the picture pick-up device of the deformable mirror that above-mentioned communique proposes and propose, purpose is to provide a kind of picture pick-up device and control method thereof, in optical finder, be equipped with in the picture pick-up device of deformable mirror, doubly adjust interlock with the change of camera chain, deformable mirror is carried out suitable control.
For addressing the above problem, invention 1 is a kind of picture pick-up device, has: camera unit, and it has times unit of change; Become times indicating member, it indicates a described change times unit change to become multiplying power; Optical finder, it is used for observing confirms photographs, it is characterized in that having: the optical finder deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, becomes doubly and adjusts; Control unit, it controls the change multiplying power of described optical finder with deformable mirror according to the indication of described change times indicating member.
In the picture pick-up device that constitutes like this, owing to indicate according to the change multiplying power change that the change times unit to camera unit sends, the control optical finder change multiplying power of deformable mirror, therefore, can doubly adjust the change of the optical finder that uses deformable mirror with the change times unit interlock of camera unit and control.
In the picture pick-up device that constitutes like this, because optical finder is set equal to the maximum change multiplying power that optics is become times unit and the electronics change times resulting camera unit of unit combination with the maximum change multiplying power of deformable mirror, therefore whole changes times adjusting range that can cover camera chain is doubly adjusted in the change of optical finder, can improve the ease of use of optical finder.
In the picture pick-up device that constitutes like this, because according to the optics of camera unit being become the change multiplying power that respectively becomes multiplying power total gained that times unit and electronics become times unit, control the change multiplying power of above-mentioned optical finder with deformable mirror, therefore, even when electronics becomes times, also can observe and confirm and photographs angle of visual field uniform images with optical finder.
In the picture pick-up device that constitutes like this,, therefore can improve the power savings of picture pick-up device owing in the change times unit of camera unit, use deformable mirror.
Invention 5 is control methods of a kind of picture pick-up device, and this picture pick-up device has: camera unit, and it has, and optics becomes times unit and electronics becomes times unit; Optical finder, it is used for observing the affirmation photographs, it is characterized in that, according to change multiplying power change indication to described camera unit, described optics is become times unit and described electronics become change that times unit combination gets up to control described camera unit doubly, change multiplying power according to the camera unit of described combination, control the change multiplying power of the deformable mirror that described optical finder has, this deformable mirror has the reflecting surface that is caused distortion by energising, and becomes doubly adjustment by the change of shape of this reflecting surface.
In the control method of the picture pick-up device that constitutes like this, owing to become the combination change multiplying power of times unit and electronics change times unit according to the optics of above-mentioned camera unit, control becomes doubly with deformable mirror optical finder to be adjusted, even therefore when the electronics change is doubly adjusted, also can realize observing the image of confirming to have the same field angle with photographs with optical finder.
In the picture pick-up device that constitutes like this, owing to being set at, the maximum change multiplying power that the maximum of the optics of above-mentioned camera chain change times unit is become the lens change times adjustment unit of multiplying power and view finder change times unit equates, therefore camera unit and optical finder doubly can be adjusted along the change of optical axis direction mobile lens and be set at etc. times, can easily realize the co-operating between the change times controlling organization of camera unit and optical finder.
Invention 7 is as inventing 6 described picture pick-up devices, it is characterized in that, has electronics and becomes times unit, and this electronics becomes times unit and the image of photography is carried out electronics becomes doubly, and maximum is become multiplying power is set at and equals the maximum that described speculum becomes times adjustment unit and become multiplying power.
In the picture pick-up device that constitutes like this, become times unit owing to have the electronics of the image of photography, therefore when can further enlarging photographs, when becoming times, electronics also can easily observe the angle of visual field uniform images of confirming with photographs with optical finder.
Invention 8 is a kind of picture pick-up devices, camera unit with photographic images, it is characterized in that, have: camera chain optics becomes times unit, it is used to change the multiplying power of the image of described photography, and become times adjustment units by following 2 and constitute: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Speculum becomes times adjustment unit, and it causes that by having by energising the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly adjustment; Optical finder, it is used for observing the affirmation photographs; View finder becomes times unit, and it is used to change the multiplying power of the image that described observation confirms, and becomes times adjustment units by following 2 and constitute: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Speculum becomes times adjustment unit, it causes by energising that the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly and adjusts by having, and the optics of described camera chain is become maximum that each lens that times unit and described view finder become times unit become times adjustment unit become multiplying power and be set at equal.
In the picture pick-up device that constitutes like this, because the optics of camera chain becomes times unit and view finder becomes times unit constituting by lens change times adjustment unit and speculum change times adjustment unit respectively, and be set at the maximum change multiplying power of each lens change times adjustment unit equal, therefore, become change that times adjustment unit carries out by each lens and doubly be adjusted into and wait times, mechanism's co-operating that the change of camera unit and optical finder is doubly controlled.
Invention 9 is a kind of picture pick-up devices, camera unit with photographic images, it is characterized in that, have: camera chain optics becomes times unit, it is used to change the multiplying power of the image of described photography, and constituting by following 2 change times adjustment units: lens become times adjustment unit, and it is adjusted by becoming along the optical axis direction mobile lens doubly; Speculum becomes times adjustment unit, and it causes that by having by energising the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly adjustment; Optical finder, it is used for observing the affirmation photographs; View finder becomes times unit, and it is used to change the multiplying power of the image that described observation confirms, and becomes constituting of times adjustment units by following 2: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Speculum becomes times adjustment unit, it causes by energising that the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly and adjusts by having, and the optics of described camera chain is become maximum that each speculum that times unit and described view finder become times unit becomes times adjustment unit become multiplying power and be set at equal.
In the picture pick-up device that constitutes like this, because the optics of camera chain becomes times unit and view finder becomes times unit constituting by lens change times adjustment unit and speculum change times adjustment unit respectively, and be set at the maximum change multiplying power of each speculum change times adjustment unit equal, therefore, become change that times adjustment unit carries out by each speculum and doubly be adjusted into and wait times, can easily make the change of camera unit and optical finder doubly control co-operating.
Invention 10 is a kind of picture pick-up devices, has: camera unit, and it is used for photographic images; The focusing detecting unit, its detection of focusing; Photography focusing unit, it carries out the focus adjustment of described camera unit; Optical finder, it is used for observing confirms photographs, this picture pick-up device is characterised in that to have: deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, carries out the focus adjustment of described optical finder; Control unit, the result that it detects according to described focusing, control photography focusing unit and deformable mirror.
In such picture pick-up device that constitutes, owing to the focusing result according to the focusing detecting unit, the deformable mirror of the focus adjustment of optical finder is carried out in control, therefore can realize having the picture pick-up device of the optical finder of well observing with low power consumption.
Invention 11 is as inventing 10 described picture pick-up devices, it is characterized in that, described control unit is also controlled described deformable mirror, and its change of carrying out described optical finder is doubly adjusted.
In the picture pick-up device that constitutes like this, owing to can carry out the focus adjustment when the change of optical finder is doubly adjusted, the focus when therefore the calibrating optical view finder becomes times effectively departs from.
Invention 12 is as inventing 10 or 11 described picture pick-up devices, it is characterized in that, described photography focusing unit possesses and has the deformable mirror that is caused the reflecting surface of distortion by energising, and the change of shape of the described reflecting surface by this deformable mirror is carried out the focus adjustment.
In the picture pick-up device that constitutes like this,, therefore picture pick-up device is more economized on electricity owing in the photography focusing unit of the focus adjustment of carrying out camera unit, adopted deformable mirror.
In the picture pick-up device that constitutes like this, in image-display units, show preview image, in the time of need not using optical finder,, do not carry out the focus adjustment owing to the deformable mirror of optical finder is not switched on, therefore can further reduce power consumption.
Invention 14 is as inventing 13 described picture pick-up devices, it is characterized in that, described focusing detecting unit carries out the gradient type focusing and detects, described control unit is in the focusing of being undertaken by described focusing detecting unit detects, detect the focus adjustment that described photography focusing unit is changed in interlock with focusing, control is interrupted the action of the deformable mirror of described optical finder.
Because in the focusing of being undertaken by the focusing detecting unit detects, the action of the deformable mirror of optical finder is also unnecessary, therefore as mentioned above, the deformable mirror by the control optical finder in focusing detects interrupts its action, can further reduce power consumption.
Description of drawings
Fig. 1 is that the integral body of digital camera of having used the 1st execution mode of picture pick-up device of the present invention constitutes block diagram.
Fig. 2 is when carrying out the zoom ratio adjustment of photographic optical system in expression the 1st execution mode, the example of shape figure of the electrostatic the 1st during each zoom ratio and the 2nd deformable mirror A, B.
Fig. 3 carries out focus from the near point to the far point when adjusting in photographic optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 1st deformable mirror A.
Fig. 4 is that expression is carried out the zoom ratio adjustment of photographic optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electrostatic the 1st and the 2nd deformable mirror A, B.
Fig. 5 is when carrying out the zoom ratio adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of the electromagnetic drive type the 3rd during each zoom ratio and the 4th deformable mirror C, D.
Fig. 6 carries out focus from the near point to the far point when adjusting at finder optical system in expression the 1st execution mode, the example of shape figure of electromagnetic drive type the 3rd deformable mirror C.
Fig. 7 is that expression is carried out the zoom ratio adjustment of finder optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electromagnetic drive type the 3rd and the 4th deformable mirror C, D.
Fig. 8 is when carrying out the zoom ratio adjustment of finder optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 3rd and the 4th deformable mirror C, D during each zoom ratio.
Fig. 9 carries out focus from the near point to the far point when adjusting at finder optical system in expression the 1st execution mode, the example of shape figure of electrostatic the 3rd deformable mirror C.
Figure 10 is that expression is carried out the zoom ratio adjustment of finder optical system and focus in the 1st execution mode when adjusting, and imposes on the voltage characteristic curve of electrostatic the 3rd and the 4th deformable mirror C, D.
Figure 11 is the flow chart of main program of action of the digital camera of expression explanation the 1st execution mode shown in Figure 1.
Figure 12 is the flow chart of the subprogram action of the 1st speculum control 1 in the expression flow chart shown in Figure 11.
Figure 13 is when carrying out zoom operation in expression the 1st speculum control 1, to photographic optical system with and finder optical system with the sequential chart of the state of deformable mirror (electrostatic) energising.
Figure 14 is the flow chart of the subprogram action of the 2nd speculum control 2 in the expression flow chart shown in Figure 11.
Figure 15 is illustrated in photographic optical system usefulness and the finder optical system sequential chart of the maintenance of deformable mirror (electrostatic) with "on" position in the control 2 of the 2nd speculum.
Figure 16 be illustrated in photographic optical system in the 2nd speculum control 2 with and finder optical system with the maintenance of deformable mirror (electrostatic) sequential chart with another state of energising.
Figure 17 is the flow chart of the subprogram action of the AF control in the expression flow chart shown in Figure 11.
Figure 18 be expression the 2nd execution mode of the present invention omission the schematic block diagram of a part of digital camera.
Figure 19 is the performance plot of the corresponding relation of the photography multiplying power of the camera chain of expression in the 2nd execution mode and view finder multiplying power.
Figure 20 be expression the 3rd execution mode of the present invention omission the schematic block diagram of a part of digital camera.
Figure 21 is the performance plot of the corresponding relation of the photography multiplying power of the camera chain in the 3rd execution mode and view finder multiplying power.
Figure 22 be the 4th execution mode of the present invention omission the schematic block diagram of a part of digital camera.
Figure 23 is the performance plot of the corresponding relation of the photography multiplying power of the camera chain in the 4th execution mode and view finder multiplying power.
Figure 24 is the figure of the topology example of expression deformable mirror.
Figure 25 is the figure of another topology example of expression deformable mirror.
Embodiment
Below, embodiments of the present invention are described.Fig. 1 has used the general block diagram that the integral body of digital camera of the 1st execution mode of picture pick-up device of the present invention constitutes.Among Fig. 11 represents camera unit, and this camera unit 1 is by constituting with the lower part: free curved surface prism 2; Photographic optical system 3, its by with the 1st deformable mirror A of the relative configuration of upper rear portion lens face of this free curved surface prism 2 and with the front lower lens face of this free curved surface prism 2 relatively the 2nd deformable mirror B of configuration constitute; Imaging apparatus 4 with the relative configuration of lower backside lens face of this free curved surface prism 2; With the 1st mirror drive device 5 and the 2nd mirror drive device 6 that are respectively applied for driving the 1st and the 2nd deformable mirror A, B.Herein, what constitute that the 1st and the 2nd deformable mirror A, the B of above-mentioned photographic optical system use is to control the electrostatic speculum of deformed shape by applying voltage, but also can use the electromagnetic drive type speculum.
Among Fig. 1,11 expression view finder unit, it has: finder optical system 16, be used to drive the 3rd and the 4th deformable mirror C, the 3rd mirror drive device 17 of D and the 4th mirror drive device 18, wherein, finder optical system 16 is by object lens 12, the 3rd deformable mirror C with these object lens 12 relative configurations, catoptrical the 4th deformable mirror D of incident the 3rd deformable mirror C, ridge prism (ダ Ha Block リ ズ system) 14, constitute with the eyepiece 15 of the ejaculation light of incident ridge prism 14, object lens 12 are made of concavees lens and convex lens, ridge prism 14 has field stop 13, is used for the reverberation of incident the 4th deformable mirror D, acquisition is the erect image of 90 ° of sight line turnings.The the 3rd and the 4th deformable mirror C, the D that constitute above-mentioned finder optical system 16 can use by applying electric current and control the electromagnetic drive type speculum of deformed shape or control the electrostatic speculum of deformed shape by applying voltage.
The image pickup signal of the digital camera of above-mentioned execution mode is handled and operation control system has: the CPU21 of each unit action of control camera; Operating unit 22 by formations such as power switch button, release-push, zoom buttons (optics/electronics interlock); Flash memory 23, the associative search table (LUT:lookup table) of the control data of its storage camera program and each deformable mirror etc.; Imaging circuit 24, it generates view data to handling from the image pickup signal of imaging apparatus 4; AF circuit 25, it uses view data degree of comparing AF to handle; The DRAM26 of temporarily storing image data; View data is carried out the graphics processing unit circuit 27 of various image processing; The image-display units 28 of display image data; With storage card 29 of recording image data etc.
Below, the general action of diagrammatic illustration camera unit 1 and view finder unit 11.Incide the axial incident ray of front upper lens face of the free curved surface prism 2 of photographic optical system 3, incide the 1st deformable mirror A and be reflected by the upper rear portion lens face, this reverberation incides the upper rear portion lens face once more, incide the 2nd deformable mirror B and be reflected by the front lower lens face, this reverberation incides the front lower lens face once more, incides imaging apparatus 4 by the lower backside lens face.
It is the input indication of basis from operating unit 22 that the zoom ratio of photographic optical system (becoming doubly) is adjusted, by adjust CPU control, impose on from the 1st and the 2nd mirror drive device 5,6 that the voltage of each deformable mirror A, B carries out, the focus adjustment is according to from the AF signal of AF circuit 25, by adjust CPU control, impose on from the 1st mirror drive device 5 that the voltage of each deformable mirror A carries out.
When the zoom ratio of photographic optical system is adjusted in Fig. 2 (A)～(C) expression, the 1st and the 2nd deformable mirror A during each zoom ratio, the example of shape figure of B.Fig. 2 (A) expression is in order to be made as zoom ratio wide-angle (wide) value W, and applies wide-angle zoom voltage A to the 1st and the 2nd deformable mirror A, B respectively
w, B
w, the state when making the speculum bulk deformation to wide-angle position, Fig. 2 (B) expression is in order to be made as zoom ratio median M, and zoom voltage A in the middle of the 1st and the 2nd deformable mirror A, B apply respectively
M, B
M, the state when making it be deformed to the centre position.Fig. 2 (C) expression is in order to be made as zoom ratio the value of looking in the distance T, and applies the zoom of looking in the distance voltage A to the 1st and the 2nd deformable mirror A, B respectively
T, B
T, make it be deformed to state when looking in the distance the position.
Fig. 3 (A)～(C) is illustrated in photographic optical system and carries out focus from the near point to the far point when adjusting, the example of shape figure of the 1st deformable mirror A.Fig. 3 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and applies voltage A to the 1st deformable mirror A
M2, the state when making the speculum bulk deformation to the near point position, Fig. 3 (B) expression is in order to be made as focus intermediate distance (2m), and applies voltage A to the 1st deformable mirror A
M1, the state when making it be deformed to the centre position, Fig. 3 (C) expression is in order to be made as focus far point (infinity), and applies voltage A to the 1st deformable mirror A
M3, the state when making it be deformed to the far point position.
Fig. 4 is that expression is carried out the zoom ratio adjustment of above-mentioned photographic optical system and focus when adjusting, and imposes on the voltage characteristic curve of the 1st and the 2nd deformable mirror A, B respectively.Solid line among Fig. 4 represents to impose on the voltage curve of the 1st deformable mirror A, and dotted line represents to impose on the voltage curve of the 2nd deformable mirror B.These each magnitudes of voltage (voltage data) that apply voltage response are stored in the flash memory 23 with the form of look-up table.As the magnitude of voltage in the look-up table (voltage data), the whole correspondences of each magnitude of voltage of all zoom ratios or all focal positions can be stored, but for the conserve memory capacity, also can only store the zoom ratio of corresponding main point and the magnitude of voltage of focal position, calculate main some each point corresponding voltage value in addition by interpolation.Above-mentioned magnitude of voltage, can be by each fixed electrode (for example 4) difference storage voltage value of each deformable mirror, but for the conserve memory capacity, when the deviation that applies voltage between each fixed electrode is constant, for example, also can only store the magnitude of voltage that imposes on the electrode that is configured in middle section, calculate the magnitude of voltage that imposes on other electrodes (for example 3) by computing.
Below, the action of diagrammatic illustration view finder unit.The action of the summary of view finder unit 11 is as follows: the axial incident ray that incides object lens 12 incides the 3rd deformable mirror C and is reflected, this reverberation incides the 4th deformable mirror D and is reflected, this reverberation incides ridge prism 14 by field stop 13, turn 90 ° as the erect image ejaculation, and incide user's pupil 19 by eyepiece 15.
Wherein, the zoom ratio adjustment of finder optical system 16 and the zoom ratio of photographic optical system are adjusted identical, be according to from the input of operating unit 22 indication, by adjust CPU control, impose on from the 3rd and the 4th mirror drive device 17,18 that the curtage of the 3rd and the 4th deformable mirror C, D carries out.That is, when the 3rd and the 4th deformable mirror C, D used the electromagnetic drive type speculum, the electric current that is applied on it by adjustment carried out the zoom ratio adjustment, and when using the electrostatic speculum, the voltage that is applied on it by adjustment carries out the zoom ratio adjustment.Focus is adjusted and is adjusted identical with the focus of photographic optical system, be according to from the AF signal of AF circuit 25, by adjust CPU21 control, impose on from the 3rd mirror drive device 17 that the electric current (during electromagnetic drive type) of the 3rd deformable mirror C or voltage (during electrostatic) adjusts.
When Fig. 5 (A), (B) are deformable mirror C, the D use electromagnetic drive type speculum of expression finder optical system 16, the 3rd and the 4th deformable mirror C, the example of shape figure of D at the zoom ratio two ends when carrying out the zoom ratio adjustment.Fig. 5 (A) expression makes the 3rd and the 4th deformable mirror C, D flow through wide-angle zoom electric current C respectively for zoom ratio being made as wide-angle value W
W1, D
W1, the state when making the speculum bulk deformation to wide-angle position, Fig. 5 (B) expression is in order to be made as zoom ratio the value of looking in the distance T, and applies the zoom of looking in the distance electric current C to the 3rd and the 4th deformable mirror C, D respectively
T1, D
T1, make it be deformed to state when looking in the distance the position.
Fig. 6 (A)～(C) is illustrated in finder optical system and carries out focus from the near point to the far point when adjusting, the example of shape figure of the 3rd deformable mirror C (electromagnetic drive type).Fig. 6 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and makes the 3rd deformable mirror C flow through electric current C
M12, the state when making it be deformed to the near point position, Fig. 6 (B) expression is in order to be made as focus intermediate distance (2m), and makes the 3rd deformable mirror C flow through electric current C
M11, the state when making it be deformed to the centre position, Fig. 6 (C) expression is in order to be made as focus far point (infinity), and makes the 3rd deformable mirror C flow through electric current C
M13, the state when making it be deformed to the far point position.
Fig. 7 is that expression is carried out the zoom ratio adjustment of above-mentioned finder optical system and focus when adjusting, and imposes on the current characteristics curve chart of the 3rd and the 4th deformable mirror C, D respectively.Solid line among Fig. 7 represents to impose on the current curve of the 3rd deformable mirror C, and dotted line represents to impose on the current curve of the 4th deformable mirror D.These apply each current value (current data) of current characteristics curve and impose on the magnitude of voltage of the 1st and the 2nd deformable mirror A, B of photographic optical system same, are stored in the flash memory 23 with the form of look-up table.
Below, when the 3rd and the 4th deformable mirror C, the D use electrostatic speculum of finder optical system 16 is described, the deformed shape example at the zoom ratio two ends when carrying out the zoom ratio adjustment.Fig. 8 (A) expression applies wide-angle zoom voltage C to the 3rd and the 4th deformable mirror C, D respectively for zoom ratio being made as wide-angle value W
WV, D
WV, the state when making the speculum bulk deformation to wide-angle position, Fig. 8 (B) expression is in order to be made as zoom ratio the value of looking in the distance T, and applies the zoom of looking in the distance voltage C to the 3rd and the 4th deformable mirror C, D respectively
TV, D
TV, make it be deformed to state when looking in the distance the position.
Fig. 9 (A)～(C) is illustrated in finder optical system and carries out focus from the near point to the far point when adjusting, the deformed shape exemplary plot of electrostatic the 3rd deformable mirror C.Fig. 9 (A) expression is in order to be made as near point (20cm) to focus when zoom ratio is median M, and applies voltage C to the 3rd deformable mirror C
MV2, the state when making it be deformed to the near point position, Fig. 9 (B) expression is in order to be made as focus intermediate distance (2m), and applies voltage C to the 3rd deformable mirror C
MV1, the state when making it be deformed to the centre position, Fig. 9 (C) expression is in order to be made as focus far point (infinity), and applies voltage C to the 3rd deformable mirror C
MV3, the state when making it be deformed to the far point position.
When Figure 10 is the above-mentioned finder optical system use electrostatic the 3rd of expression and the 4th deformable mirror C, D, when carrying out the adjustment of zoom ratio adjustment and focus, impose on the voltage characteristic curve of each speculum C, D respectively.Solid line among Figure 10 represents to impose on the voltage curve of the 3rd deformable mirror C, and dotted line represents to impose on the voltage curve of the 4th deformable mirror D.These apply each magnitude of voltage (voltage data) of voltage response and impose on the magnitude of voltage of the 1st and the 2nd deformable mirror A, B of photographic optical system same, are stored in the flash memory 23 with the form of look-up table.
Below, according to flow chart shown in Figure 11, the molar behavior of the digital camera that comprises camera unit 1 and view finder unit 11 is described.The flowcharting main program of Figure 11, when the pattern of digital camera is not photograph mode but playback (regeneration) pattern, do not use the optical system 3 of camera unit 1 and the optical system 16 of view finder unit 11, so at first whether the acts of determination pattern is photograph mode (step S1).When pattern was photograph mode, the 1st～the 4th deformable mirror A～D that photographic optical system 3 and finder optical system 16 used carried out initial setting (step S2), when pattern is not photograph mode, carried out playback process (step S3).
When photographic optical system 3 and finder optical system 16 are carried out initial setting, the digital camera of band zoom function, usually wish at first the visual field to be made as wide as far as possible, so zoom is made as wide-angle, object distance (focus) is automatically made centre position 2m (default setting) for the time being, then correspondingly respectively to the 1st of photographic optical system and finder optical system～the 4th deformable mirror A～D control of switching on.
After each deformable mirror of photographic optical system 3 and finder optical system 16 carried out initial setting, then, judge whether carry out zoom operation (step S4), when carrying out zoom operation, enter the subprogram (step S5) of the 1st speculum control 1.The subprogram action of the 1st speculum control 1, shown in the flow chart of Figure 12, by the LCD of image-display units 28 during just at display image, can utilize this display image to confirm photographs, can not use finder optical system thereby be envisioned for, whether close (step S5-1) so at first judge image-display units 28 usefulness LCD.
Be judged to be image-display units 28 usefulness LCD when closing at this determination step, photographic optical system with deformable mirror A, B and finder optical system deformable mirror C, D, is carried out the zoom adjustment corresponding with the zoom ratio that sets energising (step S5-2).On the other hand, be judged to be image-display units 28 usefulness LCD when opening, need not make finder optical system with deformable mirror C, D action, so only photographic optical system is carried out the zoom adjustment with energising (step S5-3) with deformable mirror A, B.Finish the subprogram action of the 1st speculum control 1 after these actions, return main program once more.
Carrying out above-mentioned zoom when adjusting, when photographic optical system is all used the electrostatic speculum with deformable mirror A, B and finder optical system with deformable mirror C, D, is following carrying out to the energising of each deformable mirror A～D.That is, shown in the sequential chart of Figure 13, when utilizing zoom lever or zoom button to carry out zoom operation, according to the zoom ratio corresponding with its operation, to photographic optical system and finder optical system with each deformable mirror switch on (applying voltage).At this moment, each deformable mirror A～D staggered in proper order switch on, so that do not repeat conduction time, from wide-angle to looking in the distance, the energising amount that makes each deformable mirror A～D according to each zoom ratio obtains and the corresponding net shape of setting zoom ratio by energising amount Ean, Ebn, Ecn, Edn as becoming big from Ea1, Eb1, Ec1, Ed1 to order shown in Ea2, Eb2, Ec2, the Ed2.To the energising (applying voltage) of each deformable mirror, can prevent the increase of peak current when adjusting zoom ratio by such control.
The division driving mode that staggers the conduction time of above-mentioned each deformable mirror is only implemented under the situation of using the electrostatic deformable mirror.Therefore, when photographic optical system and finder optical system use the electromagnetic drive type speculum with each deformable mirror A～D, apply continuously and the corresponding electric current of setting with zoom lever etc. of zoom ratio simultaneously to each deformable mirror A～D, up to through below AF control finish photography and move.
Return main program flow chart shown in Figure 11 once more, subsequent action is described.The action one of the subroutine procedure S5 of the 1st speculum control 1 finishes, and when each deformable mirror used the electrostatic speculum, the zoom operation in the subprogram action of the 1st speculum control 1 was judged and whether passed through the stipulated time (step S6) after finishing with energising.Carry out the determination step S4 of above-mentioned zoom operation whether,, omit the action step S5 of i.e. the 1st speculum control of subroutine procedure 1, also whether pass through the judgement of afore mentioned rules time this moment if when not carrying out zoom operation.That is, judge carry out photographic optical system with and finder optical system whether pass through the stipulated time after switching on the initial setting of deformable mirror.
Pass through the reasons are as follows of judgement of this stipulated time.Promptly, during the electrostatic deformable mirror, applied be used to be deformed into the voltage of regulation shape after, one stops to apply this voltage, along with leaking of time through producing electric charge, the regulation deformed shape that can not keep the speculum main body is so for the deformed shape that makes regulation remains in the permissible value scope, need apply voltage repeatedly with specific time interval.
At the step S6 that judges through the afore mentioned rules time, after stopping energising, during through the stipulated time (this example is 5 seconds), enter the subprogram action (step S7) of the 2nd speculum control 2.The subprogram of the 2nd speculum control 2, identical with the subprogram action of above-mentioned the 1st speculum control 1 shown in the flow chart of Figure 14, at first, judge whether the LCD of image-display units 28 closes (step S7-1).At this determination step S7-1, close if be judged to be the LCD of image-display units 28, photographic optical system is carried out speculum with deformable mirror A, B and finder optical system with deformable mirror C, D keep with energising (step S7-2).On the other hand, when the LCD that is judged to be image-display units 28 opens, finder optical system is failure to actuate with deformable mirror C, D, keeps with energising (step S7-3) so only photographic optical system is carried out speculum with deformable mirror A, B.Move by the subprogram that the 2nd speculum control 2 is finished in these action backs, return main program flow once more.
(applying voltage) is following carries out with switching in the shape maintenance of each deformable mirror A～D of above-mentioned electrostatic.Promptly, as shown in figure 15, each deformable mirror A～D is applied separately final deformed shape with voltage Ean, Ebn, Ecn, Edn with staggering in proper order, so that do not repeat the conduction time of each deformable mirror A～D, the energising fixed time interval T1 (this example is 5 seconds) with regulation applies voltage to each deformable mirror A～D repeatedly under this state simultaneously.Like this, even keep using when switching on, can prevent that also peak current from increasing.
Make finder optical system remain the importance of regulation deformed shape with deformable mirror, lower than making photographic optical system with the importance that deformable mirror remains the regulation deformed shape, its allowed band is envisioned for greater than the photographic optical system deformable mirror, so as shown in figure 16, for example, can be made as 2 times (this example are 10 second) of photographic optical system to energising fixed time interval (energising frequency), can further reduce power consumption like this with deformable mirror.
Above-mentioned judgement is through the step S6 of stipulated time and the subprogram action step S7 of the 2nd speculum control 2, as mentioned above, only photographic optical system with and finder optical system implement during with deformable mirror A～D use electrostatic speculum.Therefore, when these deformable mirrors A～D uses the electromagnetic drive type speculum, can omit these and judge through the step S6 of stipulated time and the subprogram action step S7 of the 2nd speculum control 2.
Return main program flow chart shown in Figure 11 once more, subsequent action is described.After the action of the subprogram action step S7 that has carried out the 2nd speculum control 2, judge whether carried out releasing operation (step S8) for the first time.In front judgement if be judged to be when not passing through the stipulated time, is also skipped the subprogram action step S7 of the 2nd speculum control 2 through the step S6 of stipulated time, changes the determination step S8 of above-mentioned first time of releasing operation over to.In addition, use the electromagnetic drive type speculum, and when omitting the subprogram action step S7 that judges through the step S6 of stipulated time and the 2nd speculum control 2, also change the determination step S8 of releasing operation for the first time at deformable mirror A～D.
After carrying out the releasing operation first time, the photography that promptly begins camera is prepared, the subprogram action (step S9) of beginning AF control.Do not carry out the first time during releasing operation, return step S4, carry out action repeatedly, up to carrying out the releasing operation first time from step S4 to step S8.
AF control has gradient (り is stepped on the mountain) AF mode and range finding AF mode, when using gradient mode AF control, shown in Figure 17 (A), AF control is only directly controlled image pickup optical system and is got final product, so utilize photographic optical system to carry out AF control (step S9-11) with deformable mirror A.Therefore, in gradient mode AF control procedure, in the testing process of promptly focusing, finder optical system is not switched on deformable mirror.This gradient mode AF control gradually changes from the infinity position towards extremely near direction in order to make object distance, and change photographic optical system with the shape of deformable mirror (use with shown in Figure 4 apply voltage curve corresponding apply voltage), the contrast value of the image that will photograph in each object distance stores, object distance when contrast is peak value is judged as focusing position, makes photographic optical system be the shape in described object distance focusing with deformable mirror A.Then, to finder optical system with deformable mirror C apply with described gradient mode AF control in be judged as the corresponding voltage or the electric current (corresponding Figure 10 or voltage curve or current curve shown in Figure 7) of object distance of focusing, carry out the AF control (step S9-12) of finder optical system with deformable mirror C.
On the other hand, when using distance measuring method AF control, shown in Figure 17 (B), utilize the output of the distance measuring sensor (not shown) that picture pick-up device (digital camera) has, inspected object distance (step S9-21) imposes on photographic optical system to the voltage corresponding to the object distance that is detected and carries out AF control (step S9-22) with deformable mirror A.Then, carry out AF control (step 9-23) imposing on finder optical system with deformable mirror C corresponding to the voltage of the object distance that is detected or electric current.Corresponding to the AF of the object distance that is detected control, concerning photographic optical system and finder optical system with deformable mirror in no particular order.
In the above-mentioned AF control, when the LCD of image-display units 28 is showing preview image, also need not use optical finder, so do not carry out the AF control action of finder optical system with deformable mirror.In addition, in the above-mentioned AF control, also can follow the correction of the focal shift of zoom adjustment with the AF control of deformable mirror C with finder optical system.
Above-mentioned AF control action one finishes, and returns main program once more, judges and whether has carried out releasing operation (step S10) for the second time, does not carry out the second time during releasing operation if be judged to be, and standby is up to carrying out this operation.If be judged to be when having carried out for the second time releasing operation, the record (step S12) of photographs is carried out in the action (step S11) of photographing.
And, in this embodiment, the diopter adjustment of finder optical system is also adjusted identically with focus, is to be undertaken by the shape of adjusting the speculum body, the shape of this speculum body be by adjust deformable mirror C apply voltage or electric current is adjusted.
Secondly, the 2nd execution mode is described.Figure 18 is the block diagram of expression the 2nd execution mode, and this execution mode is characterised in that: can carry out electronic zoom and handle; And the optical system that only constitutes camera unit with lens.Other structure comprises image processing system and operation control system, and is identical with the 1st execution mode, and the common ground of image processing system and operation control system except that CPU, all omits its diagram.
The camera unit 31 of present embodiment is made of following part: incident convex lens 32; Zoom (becoming doubly) is used concavees lens 33; Zoom and focusing convex lens 34; Imaging apparatus 4; Change is doubly with the 1st lens drive circuit 35, and it is used to drive zoom concavees lens 33; Become doubly with focusing with the 2nd lens drive circuit 36, it is used to drive zoom and uses convex lens 34 with focusing on.The structure of view finder unit 11 is identical with the 1st execution mode, its explanation of Therefore, omited.In image processing system, newly be provided with by image processing and carry out the electronic zoom unit 30 that electronic zoom is handled.
Secondly, the action to the 2nd execution mode of such formation describes.At first, the summary action to camera unit 31 describes.When zoom ratio is adjusted,,,,, move adjustment zoom concavees lens 33 and zoom and focusing convex lens 34 along optical axis direction according to the indication zoom ratio by the 1st and the 2nd lens drive circuit 35,36 by CPU21 according to input indication from operating unit.In addition, when focus is adjusted,,, move the adjustment zoom and focus on along optical axis direction with convex lens 34 by the 2nd lens drive circuit 36 by CPU21 according to AF signal from the AF circuit.
Secondly, the zoom ratio adjustment to this execution mode integral body of comprising view finder unit 11 describes.It is as follows that the photography multiplying power of the photographs in this execution mode is adjusted (zoom ratio adjustment): the zoom adjustment of low photography multiplying power (low zoom ratio) scope is to move the optical zoom that adjustment carries out by the zoom by the photographic optical system of camera unit 31 (zoom with lens 33 and zoom and focusing with convex lens 34) to carry out; The zoom adjustment of high photography multiplying power (high zoom ratios) scope is to handle by the electronic zoom that is undertaken by the image processing in the electronic zoom unit 30 to carry out.
Relative therewith, in the view finder unit 11, it is identical with the 1st execution mode that the view finder multiplying power is adjusted (zoom ratio adjustment), be according to from the input of operating unit indication, by adjust CPU21 control, from the curtage of the 3rd and the 4th mirror drive device 17,18 the 3rd and the 4th deformable mirror C, D change of shape are carried out.At this moment, view finder multiplying power (zoom ratio) is adjusted to the photography multiplying power that the optical zoom of camera chain and electronic zoom are combined and equates.In addition, adjust the view finder multiplying power accordingly, make the maximum multiplying power of view finder multiplying power equal the to photograph maximum multiplying power of multiplying power with the zoom ratio adjustment of camera chain.Thereby, when can handling further expansion photographs by electronic zoom, when electronic zoom is handled, also can observe the angle of visual field uniform images of confirming with photographs with the view finder unit.
Figure 19 is the photography multiplying power of expression in the 2nd execution mode and the performance plot of the corresponding relation (1: 1 corresponding) of view finder multiplying power, and transverse axis is represented the multiplying power of photographing, and the longitudinal axis is represented the view finder multiplying power.Herein, photography multiplying power (zoom ratio) is meant that with minimum focal length (wide-angle) be benchmark, the ratio of photography focal length and this minimum focal length, the view finder multiplying power is meant that it is the ratio of benchmark that the view finder with datum mark of photography multiplying power is observed the size of confirming image, as can be seen from Figure 19, in this example, it for the photography multiplying power (zoom ratio) of photographs from 1 to 6 low range scope, the optical zoom that is undertaken by photographic optical system carries out the zoom ratio adjustment, for the photography multiplying power be from 6 to 18 high magnification scope, then carries out the zoom processing that the electronic zoom that is undertaken by the image processing of electronic zoom unit 30 and optical zoom are combined.Relative therewith, in the view finder unit, in whole multiplying power scope of view finder multiplying power from 1 to 18, the speculum zoom of the warpage by utilizing deformable mirror C, D carries out the multiplying power adjustment.In the mode of the mobile lens of existing interlock travelling shot optical system and finder optical system, the electronic zoom that the multiplying power of finder optical system can not corresponding camera chain.Dotted line among Figure 19 is represented existing the multiplying power property with the view finder that lens constituted, and the state of electronic zoom that can not corresponding camera chain is shown.
Secondly, according to block diagram illustrating the 3rd execution mode of Figure 20.This execution mode has changed the structure of the view finder unit in the 2nd execution mode shown in Figure 180, other structure is identical with the 2nd execution mode, identical with the 2nd execution mode shown in Figure 180, omitted the diagram of the part of image processing system and operation control system.
The view finder unit 41 of present embodiment utilizes a deformable mirror and mobile lens group to carry out the zoom adjustment, and it is made of following part: objective lens 44, and it is made of incident concavees lens 42, mobile lens group 43 and the 3rd deformable mirror C; Field stop 13; The 3rd prism 45; The 4th prism 46; Eyepiece 15; And the 3rd mirror drive device 17, it is by CPU control and be used to drive deformable mirror C.And, the zoom of camera unit 31 is connected with the travel mechanism of the mobile lens group 43 of view finder unit 41 with the travel mechanism of focusing with lens 34 with zoom with lens 33, when the zoom that carries out camera unit 31 is adjusted, move interlock with lens 33 and zoom and focusing with the zoom of lens 34 with the zoom of the zoom Electric Machine Control that drives by the 1st and the 2nd lens drive circuit 35,36, mobile lens group 43 is driven along optical axis direction, thereby carries out the zoom adjustment.
In the view finder unit 41 that constitutes like this, incident light by incident concavees lens 42 incides deformable mirror C by mobile lens group 43, and its reverberation passes through diaphragm 13, passes through the 3rd prism 45 and the 4th prism 46, and then, by eyepiece 15, incide cameraman's pupil 19.Then, be used for changing following the carrying out of zoom adjustment: for the low range scope in the view finder multiplying power of this view finder unit 41, zoom adjustment by the mobile lens group 43 that links with lens 34 with lens 33 and zoom and focusing with the zoom of camera unit 31, carry out the zoom adjustment of view finder multiplying power, make its photography multiplying power consistent with camera chain; For the high magnification scope, be applied to the shape that curtage on the deformable mirror C is adjusted the speculum body by adjustment, carry out the zoom adjustment of view finder multiplying power.And deformable mirror C can also be accompanied by focus correction and focusing adjustment and diopter adjustment that zoom is adjusted except that zoom is adjusted.
Figure 21 is the photography multiplying power of expression in the 3rd execution mode and the performance plot of the corresponding relation of view finder multiplying power, as known in the figure, photography multiplying power about camera chain, identical with the 2nd execution mode shown in Figure 19, for the photography multiplying power is from 1 to 6 low range scope, carrying out the zoom ratio adjustment by the optical zoom that is undertaken by photographic optical system, be from 6 to 18 high magnification scope for the photography multiplying power, carries out the zoom processing that electronic zoom and optical zoom are made up.Relative therewith, in the view finder unit, it for the view finder multiplying power from 1 to 6 low range scope, utilize and lens 33 and zoom and focusing the zoom adjustment of the zoom of camera unit 31 with the mobile lens group 43 of lens 34 interlocks, carry out the multiplying power adjustment with the multiplying power that equates with the photography multiplying power of camera chain, it for the view finder multiplying power from 6 to 18 high magnification scope, by carrying out that the speculum zoom of the Adjusting Shape of utilizing deformable mirror C and lens are moved the zoom processing that zoom makes up, with etc. multiplying power carry out the multiplying power adjustment, make its maximum multiplying power identical with the maximum multiplying power of camera chain.
In this embodiment, under the situation of existing optical finder with lens zoom system, pancreatic system, electronic zoom that can not corresponding camera chain, but use deformable mirror by on the lens zoom system, pancreatic system, increasing, can easily corresponding electronic zoom.And owing to make the maximum multiplying power of camera chain identical with the maximum multiplying power of view finder unit, the cooperation that both change is doubly controlled is easier.
Secondly, according to Figure 22 the 4th execution mode is described.This execution mode has changed the structure of the camera unit in the 3rd execution mode shown in Figure 20 and has given up the electronic zoom unit, other structure is identical with the 3rd execution mode, has omitted the diagram of image processing system etc.
The camera unit 51 of present embodiment is made of following part: incident lens 52; The 1st deformable mirror A; Mobile lens group 53; Imaging apparatus 4; The 1st mirror drive device 6, it is by CPU21 control and be used to drive deformable mirror A; Lens drive division 54, it is by CPU21 control and be used to drive mobile lens group 53.And then, the travel mechanism of the mobile lens group 53 that is driven by lens drive division 54 is connected with the travel mechanism of the mobile lens group 43 of view finder unit 41, by the zoom motor that is driven by lens drive division 54, the mobile lens group 43 of view finder unit 41 is moved by the while zoom with the mobile lens group 53 of camera unit 51.
Zoom in the camera unit 51 of the 4th execution mode of Gou Chenging is adjusted following carrying out like this: for the low range scope of photography multiplying power, zoom by the mobile lens group 53 that driven by lens drive division 54 moves to adjust and carries out, for the high magnification scope, the speculum zoom of the Adjusting Shape by utilizing the 1st deformable mirror A is adjusted and is carried out.In addition, the 1st deformable mirror A also carries out the focus adjustment of basis from the AF signal of AF circuit.On the other hand, identical with the 3rd execution mode, the adjustment of the view finder multiplying power in the view finder unit 41 is following to be carried out: for the low range scope, by with the moving of the mobile lens group 43 of the mobile interlock of the mobile lens group 53 of camera unit 51, carry out the zoom adjustment with the multiplying power that equates with the photography multiplying power of camera chain, for the high magnification scope, undertaken by the speculum zoom of utilization by the Adjusting Shape of the 3rd deformable mirror C of the 3rd mirror drive device 17 drivings.
Figure 23 is the photography multiplying power of expression in the 4th execution mode and the performance plot of the corresponding relation of view finder multiplying power, as known in the figure, photography multiplying power about camera chain, for the photography multiplying power is from 1 to 3 low range scope, carry out the zoom ratio adjustment by the optical zoom that is undertaken by mobile lens group 53, for the photography multiplying power be from 3 to 6 high magnification scope, carries out the zoom processing of the speculum zoom that utilizes deformable mirror A with the optical zoom combination that utilizes mobile lens group 53.Relative therewith, in the view finder unit, it for the view finder multiplying power from 1 to 3 low range scope, move the zoom adjustment by the lens that carry out with the mobile lens group 43 of mobile lens group 53 interlock of camera unit 51, carry out the multiplying power adjustment with the multiplying power that equates with the photography multiplying power of camera chain, it for the view finder multiplying power from 3 to 6 high magnification scope, identical with camera chain, the zoom of the speculum zoom by having made up the Adjusting Shape of utilizing deformable mirror C is handled, with etc. multiplying power carry out the adjustment of view finder multiplying power, make its maximum multiplying power identical with the maximum multiplying power of camera chain.
According to aforesaid the 4th execution mode, because the photography multiplying power of camera chain and the view finder multiplying power of view finder unit all are: for the low range scope, utilize scioptics to move the optical zoom that carries out and become doubly processing, for the high magnification scope, the speculum zoom of the Adjusting Shape by utilizing deformable mirror becomes doubly to be handled, and therefore can easily carry out the co-operating that both change is doubly controlled.
As illustrated according to above-mentioned execution mode, according to invention 1, because basis is to the change multiplying power change indication of the change times unit of camera unit, the control optical finder change multiplying power of deformable mirror, therefore, can realize and doubly to adjust the link picture pick-up device of control of change times unit with camera unit to the change of the optical finder that uses deformable mirror.In addition, according to invention 2, because optical finder is set equal to the maximum change multiplying power that optics is become times unit and the electronics change times resulting camera unit of unit combination with the maximum change multiplying power of deformable mirror, therefore whole changes times adjusting range that can cover camera chain is doubly adjusted in the change of optical finder, can improve the ease of use of optical finder.In addition, according to invention 3, because according to become the change multiplying power that respectively becomes multiplying power and added up to that times unit and electronics become times unit by the optics of camera unit, the control optical finder change multiplying power of deformable mirror, therefore, even when electronics becomes times, also can observe the angle of visual field uniform images of confirming with photographs with optical finder.In addition, according to invention 4,, therefore can improve the power savings of picture pick-up device owing in the change times unit of camera unit, use deformable mirror.In addition, according to invention 5, owing to control according to the optics change times unit of camera unit and the combination change multiplying power of electronics change times unit, make and utilize optical finder doubly to adjust, become the control method that also can observe the angle of visual field uniform images of affirmation and photographs when doubly adjusting with optical finder at electronics even therefore can realize with the change of deformable mirror.In addition, according to invention 6, owing to being set at, the maximum change multiplying power that the maximum of the optics of camera chain change times unit is become the lens change times adjustment unit of multiplying power and view finder change times unit equates, therefore can doubly adjust the change of carrying out along the optical axis direction mobile lens of camera unit and optical finder and be set at etc. times, can easily realize the co-operating between the change times controlling organization of camera unit and optical finder.In addition,, become times unit, therefore when can further enlarging photographs, when electronics becomes times, also can easily observe the angle of visual field uniform images of confirming with photographs with optical finder owing to have the electronics of the image of photography according to invention 7.
In addition, according to invention 8, because the optics of camera chain becomes times unit and view finder becomes times unit constituting by lens change times adjustment unit and speculum change times adjustment unit respectively, and be set at the maximum change multiplying power of each lens change times adjustment unit equal, therefore, become change that times adjustment unit carries out by each lens and doubly be adjusted into and wait doubly, can realize easily that the machinery of camera unit and optical finder becomes a times co-operating of controlling.In addition, according to invention 9, because the optics of camera chain becomes times unit and view finder becomes times unit constituting by lens change times adjustment unit and speculum change times adjustment unit respectively, and be set at the maximum change multiplying power of each speculum change times adjustment unit equal, therefore, become change that times adjustment unit carries out by each speculum and doubly be adjusted into and wait times, can realize camera unit and optical finder co-operating easily.In addition, according to invention 10, because according to the focusing result of focusing detecting unit, the deformable mirror of the focus adjustment that is used to carry out optical finder is controlled, therefore can realize having the picture pick-up device of the optical finder of well observing with low power consumption.In addition, according to invention 11, owing to can carry out the focus adjustment when the change of optical finder is doubly adjusted, therefore the focus the during change of calibrating optical view finder times departs from effectively.In addition, according to invention 12,, therefore picture pick-up device is more economized on electricity owing in the photography focusing unit of the focus adjustment of carrying out camera unit, adopted deformable mirror.In addition,,, in the time of need not using optical finder,, do not carry out the focus adjustment, therefore can further reduce power consumption owing to the deformable mirror of optical finder is not switched on when in image-display units, showing preview image according to invention 13.In addition, according to invention 14,, therefore can further reduce power consumption owing in focusing detects, interrupt by the action of controlling the deformable mirror that makes optical finder.
Claims (3)
1. picture pick-up device has: camera unit, and it is used for photographic images; Optical finder, it is used for observing confirms photographs, it is characterized in that,
Described camera unit has camera chain optics and becomes times unit, and it is used to change the multiplying power of the image of described photography, and becomes times adjustment units by following 2 and constitute: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Electronics becomes times unit, and its image to photography carries out electronics and becomes doubly;
Described optical finder has view finder and becomes times unit, and it is used to change the multiplying power that image is confirmed in described observation, and is constituted by following 2 change times adjustment units: lens become times adjustment unit, and it is adjusted by becoming along the optical axis direction mobile lens doubly; Speculum becomes times adjustment unit, and it causes that by having by energising the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly adjustment,
The lens change times adjustment unit that described view finder becomes times unit links mutually with the lens change times adjustment unit that described camera chain optics becomes times unit;
Described speculum becomes times adjustment unit and links mutually with a described electronics change times unit.
2. picture pick-up device as claimed in claim 1 is characterized in that,
Described electronics becomes the change of carrying out high photography multiplying power scope in times unit and doubly adjusts.
3. a picture pick-up device has the camera unit of photographic images and is used to and observes the optical finder of confirming photographs, it is characterized in that,
Described camera unit has camera chain optics and becomes times unit, and it is used to change the multiplying power of the image of described photography, and becomes times adjustment units by following 2 and constitute: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Speculum becomes times adjustment unit, and it causes that by having by energising the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly adjustment;
Described optical finder has view finder and becomes times unit, and it is used to change the multiplying power of the image that described observation confirms, and becomes times adjustment units by following 2 and constitute: lens become times adjustment unit, and it is by becoming doubly adjustment along the optical axis direction mobile lens; Speculum becomes times adjustment unit, and it causes that by having by energising the change of shape of described reflecting surface of deformable mirror of the reflecting surface of distortion becomes doubly adjustment,
The lens change times adjustment unit that described view finder becomes times unit links mutually with the lens change times adjustment unit that described camera chain optics becomes times unit;
The speculum change times adjustment unit that described view finder becomes times unit links mutually with the speculum change times adjustment unit that described camera chain optics becomes times unit.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006098972A (en) * | 2004-09-30 | 2006-04-13 | Casio Comput Co Ltd | Zoom lens unit and camera |
| CN104246597B (en) * | 2011-09-30 | 2016-10-12 | 富士胶片株式会社 | Imaging device and formation method |
| CN104267480B (en) * | 2014-09-23 | 2017-12-26 | 格科微电子（上海）有限公司 | Control method and camera module for camera module |
| CN106154525A (en) * | 2015-04-20 | 2016-11-23 | 信泰光学(深圳)有限公司 | Optical system |
| CN113747067B (en) * | 2021-09-07 | 2024-02-02 | 维沃移动通信有限公司 | Photographing method, photographing device, electronic equipment and storage medium |
-
2002
- 2002-10-01 JP JP2002288264A patent/JP2004126087A/en not_active Withdrawn
-
2003
- 2003-10-01 CN CN 200310101520 patent/CN1258283C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004126087A (en) | 2004-04-22 |
| CN1497946A (en) | 2004-05-19 |
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