CN1497330A - Camera and its control method and optical mirrorscope - Google Patents
Camera and its control method and optical mirrorscope Download PDFInfo
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- CN1497330A CN1497330A CNA2003101015237A CN200310101523A CN1497330A CN 1497330 A CN1497330 A CN 1497330A CN A2003101015237 A CNA2003101015237 A CN A2003101015237A CN 200310101523 A CN200310101523 A CN 200310101523A CN 1497330 A CN1497330 A CN 1497330A
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Abstract
Provided is imaging equipment and its control method wherein power consumption is further reduced by performing proper electrification control over the imaging equipment in which an optical system equipped with a shape-changeable mirror is built, and also to provide an optical fiber. The imaging equipment is equipped with a photography part 1 comprising an optical system 3 for photography composed of 1st and 2nd shape-changeable mirrors A and B which are arranged opposite a free curved-surface lens 2, an imaging element 4, and 1st and 2nd mirror drivers 5 and 6 which drive 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 17 and 18 which drive the shape-changeable mirrors C and D; and none of the shape-changeable mirrors A to D of the respective optical systems is electrified except in a photography mode and controlled not to be electrified in the same timing to reduce a peak current, thereby prolonging the life of a battery.
Description
Technical field
The present invention relates to low power consumption camera head and control method thereof and optical finder.
Background technology
Patent documentation 1: the spy opens flat 11-317894 communique
Patent documentation 2: the spy opens the 2002-122784 communique
In general, use battery-driven picture pick-up device, for example digital camera and video camera (video movie) require all drive parts all power consumption are low.That is low power consumption is closely related with prolongation equipment service time with owing to the battery volume reduces to make device miniaturization.And zoom that photographic optical system and optical finder optical system are had or AF (automatic focus) are quite a few with the power consumption of motor with lens driving, and in order to reduce the power consumption of entire equipment, the power consumption that reduces lens driving is also very important.
To this, scheme as the power consumption that reduces above-mentioned optical system, this case applicant in the spy opens flat 11-317894 communique (patent documentation 1) etc., proposed a kind of adopt replace existing with the new mode of motor-driven lens, promptly, use the optical system of deformable mirror.Below, according to an example of the deformable mirror that proposes in Figure 22 (A), the above-mentioned communique of (B) simple declaration etc.Figure 22 (A) is a planimetric map, and Figure 22 (B) is the sectional view along the X-X ' direction of Figure 22 (A).Shown in Figure 22 (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 electorde 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 electorde is not limited to the diagram figure, can adopt various forms of patterns.Catoptron 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 (catoptron main body 105) by this electrostatic force, controls the curved shape of reflecting surface (catoptron main body 105) changeably to described fixed electorde.Thereby, carry out Control of Voltage from the outside, make reflecting surface reach suitable curvature.
Below, another that deformable mirror is described according to Figure 23 (A), (B) constitutes example.This formation example is the deformable mirror of electromagnetic drive type, and Figure 23 (A) is a side cross-sectional views, and Figure 23 (B) is the inside figure of catoptron 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 catoptron main body 205 is engaged the openend that is fixed on ring-type supporting walls 203.Catoptron 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 catoptron main body 205 of the deformable mirror 201 of such formation from external drive circuit 208, attractive force 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 catoptron main body 205 is concavity or convex.
The coil 206 that is located on the catoptron main body 205 is formed by film, makes easily, and can reduce the coil self rigidity, and institute is so that catoptron main body 205 easy deformation.In addition, also can form magnet is located at the catoptron main body side, coil is located at structure on the substrate.In addition,, also have the catoptron main body to use piezoelectric, the catoptron 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 catoptron main body, focus and become doubly and operate by applying voltage or Current Control.The shape of catoptron 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 kinematic train 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.
; expectation is with having the optical system of deformable mirror; for example be built-in with the picture pick-up device of photographic optical system, optical finder, compare, can reduce power consumption significantly with the picture pick-up device of existing built-in optical system by motor-driven camera lens mode.And, though think that built-in picture pick-up device with optical system of deformable mirror drives by the energising of suitably controlling above-mentioned deformable mirror, may reach the effect of further economize on electricity, but in the disclosed existing motion of above-mentioned communique, do not consider that to being built in that above-mentioned deformable mirror in the picture pick-up device carries out with the power savings be the concrete energising control of purpose.
Summary of the invention
The present invention proposes in view of the premises, purpose is to provide a kind of picture pick-up device and control method and optical finder, by built-in picture pick-up device with optical system of deformable mirror being carried out suitable energising control, further reduce power consumption.
For addressing the above problem, invention 1 is a kind of picture pick-up device that is used for photographic images, it is characterized in that having: optical finder, and it is used for observing the affirmation photographs; Deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described optical finder is carried out the optics adjustment; Control device when the pattern of described picture pick-up device is set at AD HOC, is controlled, and makes described deformable mirror is switched on.
In the picture pick-up device that constitutes like this,, therefore can make picture pick-up device save electric power more owing to only just switch on must be the time to the pattern of deformable mirror energising.
In the picture pick-up device that constitutes like this, because in the time that the image pickup mode of optical finder must be used,, deformable mirror is switched on the power consumption in the time of therefore can further reducing photograph mode according to the indication of the regulation of zoom or AF etc.
In the picture pick-up device that constitutes like this, because the preview image display mode does not use optical finder, so when this pattern,, can save electric power by deformable mirror not being switched on.
According to such structure, can constitute the optical finder of deformable mirror efficiently with low power consumption.
According to such structure, can adjust the change multiple proportions of optical finder with low power consumption.
According to such structure, can carry out the focus adjustment of optical finder with low power consumption.
Invention 7 is as inventing any one described picture pick-up device in 1 to 6, it is characterized in that described deformable mirror is used to adjust the diopter of described optical finder.
According to such structure, can adjust the diopter of optical finder with low power consumption.
Invention 8 is as inventing any one described picture pick-up device in 1 to 7, it is characterized in that, with a plurality of described deformable mirrors optical finder being carried out the optics adjustment.
In the picture pick-up device that constitutes like this,, therefore can enlarge adjustable optics setting range owing to optical finder is carried out the optics adjustment with a plurality of deformable mirrors.
In the control method of the picture pick-up device that constitutes like this,, therefore can save the control electric power of picture pick-up device owing to only just switch on must be the time to the specific pattern of deformable mirror energising.
Invention 10 is a kind of picture pick-up devices, has the camera that is used for photographic images, it is characterized in that, have: the camera deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described camera is carried out the optics adjustment; Optical finder, it is used for observing the affirmation photographs; 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, described optical finder is carried out the optics adjustment; Control device, it is controlled and makes described camera with deformable mirror and described optical finder with the timing of deformable mirror energising non-overlapping copies mutually.
In the picture pick-up device that constitutes like this, make camera with deformable mirror and above-mentioned optical finder with the timing of deformable mirror energising non-overlapping copies mutually owing to control, therefore can prevent the increase of peak point current, thereby battery life is prolonged.In addition, because the energising of staggering is mutually regularly switched on,, also can guarantee the steady-state deformation of the reflecting surface of deformable mirror even therefore cell voltage reduces.
Invention 11 is a kind of picture pick-up devices, has the camera that is used for photographic images, it is characterized in that, have: the camera deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described camera is carried out the optics adjustment; Optical finder, it is used for observing the affirmation photographs; 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, described optical finder is carried out the optics adjustment; Control device, its control uses deformable mirror and described optical finder with the energising of deformable mirror to described camera, makes the energising of at least one deformable mirror in described each deformable mirror not overlapping with the energising to other deformable mirror.
In the picture pick-up device that constitutes like this,, thereby battery life is prolonged even, also can prevent the increase of peak point current using a plurality of cameras to use under the situation of deformable mirror with deformable mirror or optical finder.
In the picture pick-up device that constitutes like this,, thereby battery life is prolonged even, also can prevent the increase of peak point current reliably using a plurality of cameras to use under the situation of deformable mirror with deformable mirror or optical finder.
In the control method of the picture pick-up device that constitutes like this,, thereby battery life is prolonged even, also can prevent the increase of peak point current using a plurality of cameras to use under the situation of deformable mirror with deformable mirror or optical finder.
In the optical finder that constitutes like this,, therefore can realize the optical finder that can prevent that peak point current from increasing because the control of switching on makes each conduction time of a plurality of deformable mirrors that carry out the optics adjustment not overlapping.
In the optical finder that constitutes like this, because the control of switching on, the shape of the reflecting surface of deformable mirror is remained regulation shape in the allowed band, so can make the optics adjustment keep substantially constant at the appointed time.
In the optical finder that constitutes like this, because the interval that is controlled to be in accordance with regulations switches on to deformable mirror, therefore both can suppress power consumption, can keep substantially constant to the shape of deformable mirror again.
In the optical finder that constitutes like this, because the control of switching on makes each conduction time of a plurality of deformable mirrors not overlapping, therefore both can suppress power consumption, prevent the increase of peak point current, again can be the shape of deformable mirror maintenance substantially constant.
In the picture pick-up device that constitutes like this, control owing to the shape of the reflecting surface that makes described deformable mirror is remained the intermittently power-on of the regulation shape in the allowed band, make described camera is carried out this intermittently power-on with deformable mirror repeatedly with the resting period of comparing described optical finder and lacking with the resting period of deformable mirror., therefore both can save electric power, can keep substantially constant to camera with the shape of deformable mirror with stable status more again.
Description of drawings
Fig. 1 is that the integral body of digital camera of having used the 1st embodiment of picture pick-up device of the present invention constitutes block scheme.
Fig. 2 is when carrying out the zoom ratio adjustment of photographic optical system in expression the 1st embodiment, 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 embodiment, 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 embodiment 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 embodiment, 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 embodiment, 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 embodiment 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 embodiment, the example of shape figure of electrostatic the 3rd and the 4th deformable mirror C, D during each zoom ratio.
Fig. 9 is the focus from the near point to the far point that finder optical system is carried out in expression in the 1st embodiment when adjusting, 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 embodiment when adjusting, and imposes on the voltage characteristic curve of electrostatic the 3rd and the 4th deformable mirror C, D.
Figure 11 is the process flow diagram of master routine of action of the digital camera of explanation the 1st embodiment shown in Figure 1.
Figure 12 is the process flow diagram of the subroutine action of the 1st catoptron control 1 in the expression process flow diagram shown in Figure 11.
Figure 13 is when carrying out zoom operation in expression the 1st catoptron 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 process flow diagram of the subroutine action of the 2nd catoptron control 2 in the expression process flow diagram 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 catoptron.
Figure 16 be illustrated in photographic optical system in the 2nd catoptron 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 process flow diagram of the subroutine action of the AF control in the expression process flow diagram shown in Figure 11.
Figure 18 is the block scheme of view finder unit of the digital camera of expression the 2nd embodiment of the present invention.
Figure 19 is when using electrostatic deformable mirror C in expression the 2nd embodiment, the focus adjusted value corresponding with deformed shape and the corresponding relation figure of diopter adjusted value.
Figure 20 is the block scheme of view finder of the digital camera of expression the 3rd embodiment of the present invention.
Figure 21 is when using electrostatic deformable mirror C in expression the 3rd embodiment, the focus adjusted value corresponding with deformed shape and the corresponding relation figure of diopter adjusted value.
Figure 22 represents the topology example figure of deformable mirror.
Figure 23 represents another topology example figure of 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 embodiment 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 by applying the electrostatic catoptron that voltage comes the controlled deformation shape, but also can use the electromagnetic drive type catoptron.
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 プ 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 reflected light 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 constitutes above-mentioned finder optical system 16 can use by applying that electric current comes the electromagnetic drive type catoptron of controlled deformation shape or by applying the electrostatic catoptron that voltage comes the controlled deformation shape.
The image pickup signal of the digital camera of above-mentioned embodiment 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 Flame Image Process; 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 reflected light 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 reflected light incides the front lower lens face once more, incides imaging apparatus 4 by the lower backside lens face.
The zoom ratio adjustment of photographic optical system is to be undertaken by adjusting the voltage that the 1st and the 2nd mirror drive device 5,6 by CPU control imposes on each deformable mirror A, B, and focus (focus) adjustment is to be undertaken by the voltage that adjustment imposes on deformable mirror A.
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 (wi de) 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 catoptron bulk deformation to wide-angle position, Fig. 2 (B) expression is in order to be made as zoom ratio intermediate value M, and zoom voltage A in the middle of the 1st and the 2nd deformable mirror A, B apply respectively
w, 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) expression photographic optical system is carried 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 intermediate value M, and applies voltage A to the 1st deformable mirror A
M2State when making the catoptron bulk deformation to the near point position, Fig. 3 (B) expression be in order to be made as focus intermediate distance (2m), and apply 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 electorde (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 electorde 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 reflected light incides the 4th deformable mirror D and is reflected, this reflected light 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, when the 3rd and the 4th deformable mirror C, D use the electromagnetic drive type catoptron, the electric current that is applied on it by adjustment carries out the zoom ratio adjustment, when using the electrostatic catoptron, the voltage that is applied on it by adjustment carries out the zoom ratio adjustment.The focus adjustment is to adjust by electric current (during electromagnetic drive type) or voltage (during electrostatic) that adjustment imposes on the 3rd deformable mirror C.When Fig. 5 (A), (B) are deformable mirror C, the D use electromagnetic drive type catoptron 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
WI, D
WI, 1 the state when making the catoptron bulk deformation of breaking one's promise 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
TI, D
TI, make it be deformed to state when looking in the distance the position.Fig. 6 (A)~(C) expression finder optical system 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 intermediate value 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 map 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 catoptron 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 catoptron 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) expression finder optical system 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 intermediate value 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 catoptron 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, the molar behavior of the digital camera that comprises camera unit 1 and view finder unit 11 is described.At first, describe according to process flow diagram shown in Figure 13.The flowcharting master routine 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 to the 1st~the 4th deformable mirror A~D control of switching on.
Respectively photographic optical system 3 and finder optical system 16 are being carried out behind the initial setting, then, judging whether carry out zoom operation (step S4), when carrying out zoom operation, entering the subroutine (step S5) of the 1st catoptron control 1.The subroutine action of the 1st catoptron control 1, shown in the process flow diagram 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 subroutine action of the 1st catoptron control 1 after these actions, return master routine once more.
When carrying out above-mentioned zoom adjustment, when photographic optical system is all used the electrostatic catoptron with deformable mirror A, B and finder optical system with deformable mirror C, D, energising to each deformable mirror A~D is following carrying out: promptly, 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 operational ton, 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 point 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 catoptron 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 catoptron control 1 finishes, when each deformable mirror uses the electrostatic catoptron, then, the zoom operation in the subroutine action of the 1st catoptron control 1 is judged and whether is 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 catoptron 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 catoptron 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 subroutine action (step S7) of the 2nd catoptron control 2.The subroutine of the 2nd catoptron control 2, identical with the subroutine action of above-mentioned the 1st catoptron control 1 shown in the process flow diagram 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 catoptron 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 catoptron with deformable mirror A, B.Move by the subroutine that the 2nd catoptron 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 point 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 subroutine action step S7 of the 2nd catoptron control 2, as mentioned above, only photographic optical system with and finder optical system implement during with deformable mirror A~D use electrostatic catoptron.Therefore, when these deformable mirrors A~D uses the electromagnetic drive type catoptron, can omit these and judge through the step S6 of stipulated time and the subroutine action step S7 of the 2nd catoptron control 2.
Return main program flow chart shown in Figure 11 once more, subsequent action is described.After the action of the subroutine action step S7 that has carried out the 2nd catoptron 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 subroutine action step S7 of the 2nd catoptron 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 catoptron, and when omitting the subroutine action step S7 that judges through the step S6 of stipulated time and the 2nd catoptron 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 subroutine 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.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.
Above-mentioned AF control action one finishes, and returns master routine 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, the diopter adjustment of finder optical system in this embodiment also with focus adjust identical, be by adjust deformable reflective mirror catoptron C apply voltage or apply electric current to come the shape adjustment of catoptron body is realized.
Below, the 2nd embodiment is described.This embodiment replaces two deformable mirrors and uses a deformable mirror to constitute view finder shown in Figure 18 (A), (B), and other structures and the 1st embodiment shown in Figure 1 are basic identical.Figure 18 (A) is the front view (FV) of view finder, and Figure 18 (B) is its outboard profile, gives same numeral to or corresponding components identical with the 1st embodiment shown in Figure 1.
The view finder unit 31 of this embodiment is by constituting with the lower part: object lens the 12, the 1st prism 32, field stop the 13, the 2nd prism 33, deformable mirror C, eyepiece 15 and by CPU control, drive the mirror drive device 17 of deformable mirror C.The incident light that passes through from object lens 12 incides the 1st prism 32, and reflection downwards, this reflected light incides the 2nd prism 33 by field stop 13 and is reflected, and this reflected light incides deformable mirror C, and its reflected light incides cameraman's pupil 19 by eyepiece 15.
This embodiment only uses a deformable mirror C, thus can not carry out zoom operation, but, can carry out focus adjustment (focus correction) and diopter adjustment by adjusting the deformed shape of deformable mirror C.As Fig. 6 or shown in Figure 9, the focus adjustment is to impose on the electric current (electromagnetic drive type) of deformable mirror C or shape that voltage (electrostatic) is adjusted the catoptron main body realizes by adjustment.It is identical with the focus adjustment that diopter is adjusted, and is to adjust its shape by the curtage that adjustment imposes on deformable mirror C to realize.When Figure 19 (A), (B) expression use electrostatic deformable mirror, the focus adjusted value corresponding and the corresponding relation figure of diopter adjusted value with the deformed shape of deformable mirror C.State when Figure 19 (A) expression focus is near point position (20cm), corresponding diopter+1diop, the state when Figure 19 (B) expression focus is far point position (infinity), corresponding diopter-6diop.
Below, according to Figure 20 the 3rd embodiment is described.This embodiment uses a deformable mirror to constitute view finder, and can carry out zoom operation, other structures and shown in Figure 1 basic identical.Figure 20 represents the outboard profile of view finder, gives same numeral to or corresponding components identical with the 1st embodiment shown in Figure 1.
The view finder 41 of this embodiment is by constituting with the lower part: the objective lens 44 that constitutes by incident concavees lens 42 and mobile lens group 43 and deformable mirror C, field stop the 13, the 3rd prism the 45, the 4th prism 46, eyepiece 15, by CPU control, be used to drive the lens driving unit 47 of mobile lens group 43 and by CPU mirror drive device 17 control, that be used to drive deformable mirror C.Incident light from incident concavees lens 42 pass through incides deformable mirror C by mobile lens group 43, and this reflected light is by field stop 13, and incides cameraman's pupil 19 by the 3rd prism 45 and the 4th prism 46 and eyepiece 15.
In this embodiment, utilize mobile lens group 43 to carry out the zoom ratio adjustment, and can utilize deformable mirror C, carry out focus correction and diopter adjustment by focus adjustment, zoom adjustment.As Fig. 6 or shown in Figure 9, with the focus correction that focus adjustment that utilizes deformable mirror C to carry out or zoom adjustment are accompanied, be to impose on the electric current (electromagnetic drive type) of deformable mirror C or shape that voltage (electrostatic) is adjusted the catoptron main body realizes by adjustment.It is identical with the focus adjustment that diopter is adjusted, and is to adjust its shape by the curtage that adjustment imposes on deformable mirror C to realize.When Figure 21 (A), (B) expression use electrostatic deformable mirror C, the focus adjusted value corresponding and the corresponding relation figure of diopter adjusted value with the deformed shape of deformable mirror C.State when Figure 21 (A) expression focus is near point position (20cm), corresponding diopter+1diop, the state when Figure 21 (B) expression focus is far point position (infinity), corresponding diopter-6diop.
In above-mentioned the 3rd embodiment, when using the electrostatic catoptron, can use the mode identical with the 1st embodiment from the type of drive at intermittence that the time staggers when each deformable mirror applies the division driving of voltage and maintenance deformed shape as deformable mirror A, the B of photographic optical system.
As illustrated,,, therefore can make picture pick-up device save electric power owing to only when the pattern that must switch on to deformable mirror, just switch on according to invention 1 according to above-mentioned embodiment.According to invention 2,, deformable mirror is switched on the power consumption in the time of therefore can further reducing photograph mode according to the indication of the regulation of zoom or AF etc. because in the time must using the photograph mode of optical finder.According to invention 3, owing to when the preview image display mode, deformable mirror is not switched on the electric power in the time of therefore can saving the preview image display mode.According to invention 4, can constitute the optical finder of deformable mirror effectively with low power consumption.According to invention 5, can carry out the zoom operation of optical finder with low power consumption.According to invention 6, can carry out the focus adjustment of optical finder with low power consumption.According to invention 7, can carry out the diopter adjustment of optical finder with low power consumption.According to invention 8,, therefore can enlarge adjustable optics setting range owing to carry out the optics adjustment with a plurality of deformable mirrors.
According to invention 9, owing to only when the specific pattern that must switch on to deformable mirror, just switch on, therefore can realize to save the control method of the picture pick-up device of electric power.According to invention 10, owing to control, make timing phase non-overlapping copies, therefore when can preventing the increase extending battery life of peak point current to the deformable mirror energising, even when cell voltage reduces, also can guarantee the stable distortion of deformable mirror.According to invention 11,, also can prevent the increase of peak point current and battery life is prolonged even under the situation of the deformable mirror that uses a plurality of cameras usefulness or optical finder to use.According to invention 12,, battery life is prolonged even under the situation of the deformable mirror that uses a plurality of cameras usefulness or optical finder to use, also can prevent the increase of peak point current more reliably.According to invention 13, use a plurality of cameras with or the control method of the picture pick-up device of the deformable mirror used of optical finder in, can prevent the increase of peak point current, battery life is prolonged.
According to invention 14, the optical finder that can realize preventing the increase of peak point current and battery life is prolonged.According to invention 15,, therefore can make the optics adjustment of optical finder keep substantially constant at the appointed time because the control energising makes the shape of the reflecting surface of deformable mirror remain the interior regulation shape of allowed band.According to invention 16, owing to control, make in accordance with regulations and at interval deformable mirror is switched on, therefore both can suppress power consumption, can be again that the shape of deformable mirror keeps substantially constant.According to invention 17, owing to control, make each conduction time of a plurality of deformable mirrors not overlapping, therefore both can suppress power consumption, prevent the increase of peak point current, can make the shape of deformable mirror keep substantially constant again.According to invention 18, both can save electric power, can make camera keep substantially constant with stable status more again with the shape of deformable mirror.
Claims (18)
1. picture pick-up device that is used for photographic images is characterized in that having:
Optical finder, it is used for observing the affirmation photographs;
Deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described optical finder is carried out the optics adjustment;
Control device when its pattern at described picture pick-up device is set at AD HOC, is controlled, and makes described deformable mirror is switched on.
2. picture pick-up device as claimed in claim 1 is characterized in that,
When described control device was set at photograph mode in the pattern of described picture pick-up device, indication was according to the rules controlled, and makes described deformable mirror is switched on.
3. picture pick-up device as claimed in claim 1 is characterized in that,
Described control device is set at when showing the preview image display mode of preview image by image display device in the pattern of described picture pick-up device, controls, and does not make described deformable mirror is switched on.
4. as any one described picture pick-up device in the claim 1 to 3, it is characterized in that,
Described deformable mirror constitutes the part of the optical system of described optical finder.
5. as any one described picture pick-up device in the claim 1 to 4, it is characterized in that,
Described deformable mirror is used to adjust the change multiple proportions of described optical finder.
6. as any one described picture pick-up device in the claim 1 to 5, it is characterized in that,
Described deformable mirror is used to adjust the focus of described optical finder.
7. as any one described picture pick-up device in the claim 1 to 6, it is characterized in that,
Described deformable mirror is used to adjust the diopter of described optical finder.
8. as any one described picture pick-up device in the claim 1 to 7, it is characterized in that,
With a plurality of described deformable mirrors view finder is carried out the optics adjustment.
9. a control method that is used for the picture pick-up device of photographic images is characterized in that,
When the pattern of this picture pick-up device is set at AD HOC, deformable mirror to be switched on, this deformable mirror comes optical finder is carried out the optics adjustment by caused distorted reflector by energising.
10. a picture pick-up device has the camera that is used for photographic images, it is characterized in that having:
The camera deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described camera is carried out the optics adjustment;
Optical finder, it is used for observing the affirmation photographs;
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, described optical finder is carried out the optics adjustment;
Control device, it is controlled, and makes described camera with deformable mirror and described optical finder with the timing of deformable mirror energising non-overlapping copies mutually.
11. a picture pick-up device has the camera that is used for photographic images, it is characterized in that having:
The camera deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described camera is carried out the optics adjustment;
Optical finder, it is used for observing the affirmation photographs;
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, described optical finder is carried out the optics adjustment;
Control device, its control uses deformable mirror and described optical finder with the energising of deformable mirror to described camera, makes the energising of at least one deformable mirror in described each deformable mirror not overlapping with the energising to other deformable mirror.
12. picture pick-up device as claimed in claim 11 is characterized in that,
Described control device is controlled, and makes each energising of all described deformable mirrors not overlapping.
13. the control method of a camera head is characterized in that,
Camera is controlled with a plurality of deformable mirrors that deformable mirror constitutes with deformable mirror and optical finder, make the energising of at least one deformable mirror in these a plurality of deformable mirrors not overlapping with energising to other deformable mirror, wherein, this camera is used for by being caused that by energising distorted reflector comes camera is carried out the optics adjustment with deformable mirror, and this optical finder is used for by being caused that by energising distorted reflector comes optical finder is carried out the optics adjustment with deformable mirror.
14. one kind is used to observe the optical finder of confirming photographed images, it is characterized in that having:
A plurality of deformable mirrors, it has the reflecting surface that is caused distortion by energising, carries out the optics adjustment by the change of shape of this reflecting surface;
Control device, it is controlled energising, makes each conduction time of these a plurality of deformable mirrors not overlapping.
15. one kind is used to observe the optical finder of confirming photographed images, it is characterized in that having:
The optical finder deformable mirror, the part that it constitutes the optical system of this optical finder has the reflecting surface that is caused warpage by energising, carries out the optics adjustment by the change of shape of this reflecting surface;
Control device, it is controlled energising, and what make this deformable mirror causes that by energising the shape of the reflecting surface of distortion remains the regulation shape in the allowed band.
16. optical finder as claimed in claim 15 is characterized in that,
Described control device remains regulation shape in the allowed band for the shape with reflecting surface, controls the interval that makes in accordance with regulations described deformable mirror is switched on.
17. as claim 15 or 16 described optical finders, it is characterized in that,
Have a plurality of described deformable mirrors, described control device is controlled energising, makes each conduction time of a plurality of described deformable mirrors not overlapping.
18. a picture pick-up device has the camera that is used for photographic images, it is characterized in that having:
The camera deformable mirror, it has the reflecting surface that is caused distortion by energising, by the change of shape of this reflecting surface, described camera is carried out the optics adjustment;
Optical finder, it is used for observing the affirmation photographs;
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, described optical finder is carried out the optics adjustment;
Control device, it is controlled deformable mirror and the optical finder energising of deformable mirror of described camera,
This control device is controlled the intermittently power-on that the shape of the reflecting surface that makes described deformable mirror remains the regulation shape in the allowed band, makes described camera is repeatedly carried out this intermittently power-on to compare described optical finder with the short resting period of the resting period of deformable mirror with deformable mirror.
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JP2002288263A JP2004126086A (en) | 2002-10-01 | 2002-10-01 | Imaging equipment and its control method, and optical finder |
JP288263/2002 | 2002-10-01 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104267480A (en) * | 2014-09-23 | 2015-01-07 | 格科微电子(上海)有限公司 | Control method used for camera module and camera module |
CN104931011A (en) * | 2015-06-11 | 2015-09-23 | 山东神戎电子股份有限公司 | Passive distance measuring method of infrared thermal imager |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2002122784A (en) * | 2000-08-08 | 2002-04-26 | Olympus Optical Co Ltd | Optical device |
JP2002221751A (en) * | 2001-01-24 | 2002-08-09 | Olympus Optical Co Ltd | Camera using variable shape mirror |
JP2002229100A (en) * | 2001-01-29 | 2002-08-14 | Olympus Optical Co Ltd | Camera |
JP2002277736A (en) * | 2001-03-21 | 2002-09-25 | Olympus Optical Co Ltd | Image pickup device |
-
2002
- 2002-10-01 JP JP2002288263A patent/JP2004126086A/en not_active Withdrawn
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2003
- 2003-10-01 CN CNB2003101015237A patent/CN100334501C/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104267480A (en) * | 2014-09-23 | 2015-01-07 | 格科微电子(上海)有限公司 | Control method used for camera module and camera module |
CN104931011A (en) * | 2015-06-11 | 2015-09-23 | 山东神戎电子股份有限公司 | Passive distance measuring method of infrared thermal imager |
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JP2004126086A (en) | 2004-04-22 |
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