CN100440021C - Camera and light projecting volume control method - Google Patents
Camera and light projecting volume control method Download PDFInfo
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- CN100440021C CN100440021C CNB2004100064796A CN200410006479A CN100440021C CN 100440021 C CN100440021 C CN 100440021C CN B2004100064796 A CNB2004100064796 A CN B2004100064796A CN 200410006479 A CN200410006479 A CN 200410006479A CN 100440021 C CN100440021 C CN 100440021C
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Abstract
A xenon tube 53 of a flash unit projects light on a subject 40. The projection quantity of the xenon tube 53 is controlled by a CPU 10 through a flash circuit 26. Further, the CPU 10 calculates a correction value for the projection quantity of the xenon tube 53. Furthermore, the CPU 10 increases the projection quantity of the xenon tube 53 of the flash unit according to the calculated correction value when a specified photographic mode wherein light is always projected while the face of a person is considered to be a main object to be photographed is selected.
Description
Technical field
The present invention relates to suitably to control according to photographed scene the camera and the value for the projection quantity control method of the luminous quantity of light-emitting device.
Background technology
Usually, as reference object, majority is as subject with the personage.
Figure 13 is the general camera of expression and as the figure of the relation between the personage of subject.
In Figure 13, capture lens 2 is set in the substantial middle position of the front of camera body 1.Flash unit 3, automatic focus (AF) device 4, view finder 5 and the light measurer 6 etc. that flash light emission is used are carried out in configuration around this capture lens 2.And, be present in from 1 pair of this camera body and leave main body distance and take a picture for locational personage's 7 range findings, the photometry of L as subject.
The BV value that utilization is calculated by the output of light measurer 6, the AV value that goes out according to the F numerical evaluation of not shown shutter, the DV value that goes out according to the distance calculation as the personage 7 of subject and camera body 1 and according to the SV value that the ISO light sensitivity of not shown film calculates calculate suitable Gno (flash factor) by following (1) formula and (2) formula.And,, luminous to subject 7 with suitable luminous quantity according to the Gno control flash unit 3 that calculates.
GV＝AV+DV-SV+SV
100……(1)
(wherein, SV
100Be the SV value of ISO light sensitivity 100)
But as reference object, most representative is people's face.But, because face is difficult to as reference object, so proposed a lot of faces shooting condition for shooting in the prior art.
For example, if take face under the backlight state, then the shade of the face variation that deepens, expresses one's feelings be the head it off illumination flash, but photo turns white under common luminous quantity, so need reduction some luminous quantities (for example with reference to Patent Document 1).
In addition, also proposed in screening-mode, to be provided with picture mode,, then the personage has been taken the technology of the various appropraite conditions of automatic setting if under this pattern.And, at this moment, the luminous quantity of flashlamp is made as-1 grade (for example with reference to Patent Document 2).
No. the 2935466th, [Patent Document 1] special permission communique
[Patent Document 2] spy opens the 2001-330882 communique
But, under the situation of taking character facial, but not needing clear correct exposure of taking face sometimes usually, preferably can conceal face's spot or wrinkle on the contrary.But, in above-mentioned Patent Document 1 and Patent Document 2, can not be applicable to this situation that face's spot or wrinkle are taken of wanting to conceal.
Summary of the invention
Therefore, the present invention makes in view of the above problems, its objective is that providing a kind of is under personage's the situation in subject, can shoot clear camera and the camera program that manifests the image of face of avoiding.
That is, the present invention's 1 feature is, having in the camera of the projecting unit of subject projecting beam, it is characterized in that, comprising: take the unit, take subject; Projecting unit is to the subject projecting beam; The value for the projection quantity control module is controlled the value for the projection quantity of above-mentioned projecting unit; The corrected value arithmetic element calculates the corrected value that should proofread and correct above-mentioned value for the projection quantity; And the photometry unit of measuring the brightness of subject, above-mentioned corrected value arithmetic element correspondence calculates above-mentioned corrected value according to the photometry result of above-mentioned photometry unit, above-mentioned value for the projection quantity control module usually with character facial as main reference object and selected under the situation of specific screening-mode of projection light, according to the corrected value that aforementioned calculation goes out, the value for the projection quantity of above-mentioned projecting unit is increased.
The present invention's 2 is characterised in that: the present invention 1 in, the difference that above-mentioned corrected value arithmetic element calculates the photometry result of photometry result around the subject that obtained by above-mentioned photometry unit and subject central authorities is used as above-mentioned photometry result.
The present invention's 3 is characterised in that: the present invention 1 in, under the bright situation of the brightness ratio setting of the measured subject in above-mentioned photometry unit, above-mentioned corrected value arithmetic element calculates than being used as above-mentioned corrected value corresponding to the big value of the corrected value of afore mentioned rules value.
The present invention's 4 is characterised in that: the present invention 1 in, also have range cells, measure the distance of above-mentioned subject; And multiplying power arithmetic element, according to focal length to the capture lens of the distance of above-mentioned subject and above-mentioned shooting unit, calculate the shooting multiplying power, above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to photometry result and the above-mentioned shooting multiplying power measured by above-mentioned photometry unit.
The present invention's 5 is characterised in that: the present invention 4 in, above-mentioned corrected value arithmetic element above-mentioned shooting multiplying power than the big situation of the shooting multiplying power of regulation under, as above-mentioned corrected value, calculate than value also big when the shooting multiplying power of afore mentioned rules.
The present invention's 6 is characterised in that: the present invention 1 in, also have range cells, measure the distance of above-mentioned subject; Above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to the photometry result who is measured by above-mentioned photometry unit with by the range finding result that above-mentioned range cells records.
The present invention's 7 is characterised in that: the present invention 1 in, above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to the focal length of the capture lens of photometry result who is measured by above-mentioned photometry unit and above-mentioned shooting unit.
The present invention's 8 feature is, in control in the value for the projection quantity control method of the value for the projection quantity of the projecting unit of subject projecting beam, under the situation of the specific screening-mode of the projection of having selected character facial is carried out as main reference object always light, calculate the corrected value of above-mentioned value for the projection quantity, and increase value for the projection quantity according to the corrected value that calculated, wherein the calculating to the corrected value of above-mentioned value for the projection quantity is to carry out according to the photometry result that the brightness of subject is measured.
Description of drawings
Fig. 1 is the block diagram of circuit structure of camera of the use silver film of the expression first embodiment of the present invention;
Fig. 2 is the process flow diagram of master routine of the camera of expression first embodiment;
Fig. 3 is the process flow diagram of the detailed action handled of the release of the step S31 of key diagram 2 process flow diagrams;
Fig. 4 is the process flow diagram of detailed action of exposure calculation process of the step S44 of key diagram 3 process flow diagrams;
Fig. 5 is the process flow diagram of the luminous quantity of the step S69 of the key diagram 4 process flow diagrams detailed action of proofreading and correct;
Fig. 6 is the figure of the correcting value computing of expression first embodiment with the example of table;
Fig. 7 is the chart of expression brightness dependence;
Fig. 8 is the figure of the table of all correcting values of expression one example expression;
Fig. 9 is the process flow diagram that is used to illustrate the luminous quantity corrective action of second embodiment;
Figure 10 is the figure of the correcting value computing of expression second embodiment with the example of table;
Figure 11 is the figure of the correcting value computing of expression the 3rd embodiment with the example of table;
Figure 12 is the process flow diagram that is used to illustrate the luminous quantity corrective action of the 4th embodiment;
Figure 13 is an expression ordinary camera and as the figure of the relation between the personage of subject.
Among the figure: 10-CPU; 11-range finding portion; The 12-light measuring circuit; 13-zoom drive circuit; 14-zoom drive signal deteching circuit; 15-focuses on driving circuit; 16-focus drive signal testing circuit; The fast gate drive circuit of 18-; The fast gate drive signal testing circuit of 19-; 20-film feed drive circuit; 21-film amount of movement testing circuit; 22-film information testing circuit; 25-LCD; The 26-flash lamp circuit; 27-EEPROM; The 28-EXT terminal; The 52-phtographic lens.
Embodiment
Below, with reference to the description of drawings embodiments of the invention.
(first embodiment)
Fig. 1 is the block diagram of circuit structure of camera (below, only be called camera) of the use silver film of expression first embodiment of the invention.
Among Fig. 1, CPU10 is a microcomputer of being responsible for the whole control of camera of present embodiment, has the function of value for the projection quantity control module, corrected value arithmetic element, multiplying power arithmetic element.And, range finding portion 11, light measuring circuit 12, zoom drive circuit 13, zoom drive signal deteching circuit 14, focusing driving circuit 15, focus drive signal testing circuit 16, fast gate drive circuit 18, fast gate drive signal testing circuit 19, film transport driving circuit 20, film amount of movement testing circuit 21, film information testing circuit 22, LCD25, flash lamp circuit 26, EEPROM27, EXT terminal 28 and various operating switch 31～38 are connected on this CPU10.
The range cells that 40 distance (subject distance) L uses is measured from the camera body to the subject by above-mentioned range finding portion 11.This range finding portion 11 constitutes has a pair of sensitive lens 41a and 41b, pair of sensors array 42a and 42b.
The a pair of sensitive lens 41a of the base length of being separated by (parallax) B configuration, the video imaging of subject 40 that 41b obtains are being configured on locational pair of sensors array 42a, the 42b of focal distance f, and according to known range of triangle principle, image space difference x from according to this parallax detects above-mentioned subject distance L by above-mentioned CPU10.According to the size of detected so above-mentioned subject distance L, change the optical axis of above-mentioned pair of sensors array 42a, 42b relative position as benchmark.
Photo detector 43a, 43b are connected to above-mentioned light measuring circuit 12.And, constitute the photometry unit of the brightness of measuring subject by these light measuring circuits 12, photo detector 43a, 43b and photometry lens 44.Measure by near the light quantity the subject of photometry lens 44 incidents by light measuring circuit 12, measure subject brightness in order to determine that conditions of exposure is used.In addition, photo detector 43a measures the light of shooting picture periphery, and photo detector 43b measures the light of shooting picture central portion.
Above-mentioned zoom drive circuit 13 drives zoom motor 45 by the control from above-mentioned CPU10.From this zoom drive circuit 13, by not shown gear (gear) group, revolving force is delivered to not shown varifocal optical system, thereby carries out zoom as the capture lens 52 of taking the unit.
The pulse signal that above-mentioned zoom drive signal deteching circuit 14 generates corresponding to the rotation amount of above-mentioned zoom motor 45, and send this pulse signal to above-mentioned CPU10.By counting this pulse signal, and generate data corresponding to the focal length of above-mentioned capture lens 52 by above-mentioned CPU10.
Above-mentioned focusing driving circuit 15 drives and focuses on motor 47 by the control from CPU10.Focus on driving circuit 15 from this, the gear row by not shown are delivered to not shown Focused Optical system with revolving force, thereby carry out the focusing of above-mentioned capture lens 52.
The pulse signal that above-mentioned focus drive signal testing circuit 16 generates corresponding to the rotation amount of above-mentioned focusing motor 47, and this pulse signal is sent to above-mentioned CPU10.By detect the quantity and the cycle of this pulse signal by CPU10, overlap locational control and make condenser lens (capture lens 52) correctly stop at focus.
Above-mentioned fast gate drive circuit 18 is by the control from above-mentioned CPU10, the short-circuiting device (plunger) 48 that not shown driving shutter the is used control of switching on.By by the conduction time of above-mentioned CPU10 control to this short-circuiting device 30, and the control exposure.
Above-mentioned fast gate drive signal testing circuit 19 generates with not shown shutter action interlock controls the benchmark timing of using conduction time to above-mentioned short-circuiting device 48.
Above-mentioned film transport driving circuit 20 by the controlling and driving film transport motor 50 from above-mentioned CPU10, is rolled up, is rewinded and carry out the suitable of film.Above-mentioned film amount of movement testing circuit 21 is by detecting the feed status that the perforation that forms on the not shown film detects film.
Above-mentioned film information testing circuit 22 is used to read the ISO light sensitivity information that is arranged on the spool box 51.
In addition, above-mentioned LCD25 has the outside Presentation Function that carries out camera mode demonstration, number demonstration etc.
In order to guarantee suitable exposure, illumination the subject xenon as light source (Xe) pipe of using 53 and the main capacitor 54 of storing illuminating electric energy are connected on the above-mentioned flash lamp circuit 26.Constitute flash unit by these flash lamp circuits 26, xenon pipe 53, main capacitor 54 as projecting unit.
Above-mentioned EEPROM27 is except controlling this camera, and the state that also is used to store necessary parameter and judges constant, camera constitutes above-mentioned EEPROM27 by nonvolatile memory.
In addition, for action and the performance that guarantees camera, above-mentioned EXT terminal 28 is when carrying out the various adjustment of being carried out when making, for the PERCOM peripheral communication terminal that is provided with from the external control camera.
Above-mentioned various switch 31～38 constitute comprise power switch (PWSW) 31, bonnet switch (BKSW) 32, rewind switch (RWSW) 33, first release-push (1RSW) 34, second release-push (2RSW) 35, the switch of looking in the distance (ZUSW) 36, wide angle switch (ZDSW) 37 and mode switch (MODSW) 38.
Above-mentioned power switch (PWSW) the 31st carries out the switch that the open and close of camera power supply are used.For to open under the situation of state, the expression power supply is opened at this power switch 31, and under the situation of off status, the expression power supply closes.
Above-mentioned bonnet switch (BKSW) the 32nd is used to detect and carries out the packing into of film, the state of opening of the not shown bonnet when taking out, the switch that off status is used.Bonnet switch 32 open the state that the state representation bonnet is opened, off status is represented the bonnet closing state.
Rewinding normally off status of switch (RWSW) 33, is to carry out the switch of forcing to rewind usefulness under ON operation.
First release-push (1RSW) 34 is off status normally, is to begin under ON operation as the range finding of exposure warming-up exercise and the switch that photometry is used.Above-mentioned second release-push (2RSW) 35 is off status normally, is the switch that the beginning exposure actions is used under ON operation.
In addition, above-mentioned first release-push 34 and second release-push 35 have constituted the two-stage switch.After opening first release-push 34, second release-push 35 is opened.
The above-mentioned switch of looking in the distance (ZUSW) 36 is off status normally, is under ON operation, and the beginning zoom drive makes the switch that focal length changes to (TELE) side of looking in the distance.On the other hand, above-mentioned wide angle switch (ZDSW) 37 is off status normally, is opening under the state that the beginning zoom drive makes the switch that focal length changes to wide-angle (WIDE) side.
And above-mentioned mode switch (MODSW) 38 is off status normally, is under ON operation, switches to the switch that the luminous quantity pattern that strengthens flash unit is used from normal mode, has the function as selected cell.The so-called pattern that strengthens the luminous quantity of this flash unit be meant as the object of the invention for making face's colour of skin seem the whiter screening-mode of taking, make and avoided the clear character facial that manifests, promptly make character facial spot or wrinkle not noticeable.Below, the pattern that strengthens the luminous quantity of this flash unit is called the skin makeup pattern, be described in greater detail below.
The action of the camera that constitutes so then, is described.
Fig. 2 is the process flow diagram of master routine of the camera of expression present embodiment.
By energized, begin the action of this program.
At first, in step S1, carry out initial setting.Here carry out the initialization of above-mentioned CPU10, carry out the initialization of each not shown input/output port, RAM etc. etc.
Then, in step S2, during various adjustment when camera is made, carry out PERCOM peripheral communication by above-mentioned EXT terminal 28.Further, in step S3, read the data that are stored among the EEPROM27, and with the data storage of being read in the RAM (not shown) of above-mentioned CPU10 inside.
And, in step S4, judge the state of above-mentioned bonnet switch 32.Here, in state variation situation under, enter into step S5, under the situation that is not having to change, enter into step S9.
In step S5, judge whether the state of current bonnet switch 32 is off status.Here, under the situation that is not off status, enter into step S6.At this moment, because the state variation of bonnet switch 32, and current state is out, so bonnet switch 32 becomes out from the pass.That is, expression bonnet switch 32 becomes " opening " state from " closure " state.
Therefore, in step S6, be that sign, the F_BKCLOS of closure state is made as " 0 " to unshowned bonnet in the presentation graphs when " 1 ", and state is opened in storage.Afterwards, enter into step S9.
On the other hand, among the above-mentioned steps S5, be under the situation of off status at the state of bonnet switch 32, enter into step S7.And, above-mentioned sign F_BKCLOS is made as " 1 ", and unshowned bonnet is an off status in the storage map.
Further, in the step S8 that follows,, and, handle so carry out automatic coiling because spool box 51 may be set in the camera because bonnet becomes closure state from open mode.Afterwards, enter into step S9.
Under the situation that the state of bonnet switch 32 does not have to change in above-mentioned steps S4, enter into step S9, when being " 1 ", judge that expression need lick 1 sign, the state of F_WNDREQ.Here, be under the situation of " 1 " at the state of sign F_WNDREQ, enter into step S10, be under the situation of " 0 " at the state of F_WNDREQ, enter into step S13.
In step S10, lick the processing action of a film.Then, in step S11, judge in the process that licks a film of above-mentioned steps S10, whether to have detected the film end.Here, under the situation that does not detect the film end, enter into step S13, under the situation that has detected the film end, enter into step S12.
In step S12, owing to be the situation that has detected the film end, so need rewind action, therefore, sign, F_RWREQ that expression need be rewinded are set to " 1 ".Afterwards, enter into step S13.
In step S13, judge and carry out the above-mentioned state that rewinds the sign F_RWREQ of usefulness.Here, sign F_RWREQ is a situation about need rewind for the situation of " 1 ".Therefore, enter into step S14, after having carried out rewinding processing, entering into step S15.On the other hand, because F_RWREQ is not need the situation of rewinding for the situation of " 0 " among the above-mentioned steps S13, so skips steps S14 and enter into step S15.
In step S15, judge the state of power switch 31.State at power switch 31 is under the situation of off status, expression power supply off status.Therefore, at this moment enter into step S16, carry out that not shown picture frame is moved to the withdrawal of holding state and handle.Then, in step S17, LCD25 is become off status, and show and close processing.
After having carried out this demonstration and closing processing, enter into the halted state of the action that stops CPU10.In order to return, operating power switch 31, bonnet switch 32, rewind switch 33 from this halted state.By these switching manipulations, can begin to restart the action of CPU10 from the beginning of this program.
At above-mentioned steps S15, for to open under the situation of state, the expression power supply is opened state at power switch 31.Therefore, at this moment enter into step S18, make not shown picture frame move to wide-angle (wide) position as shooting state begin handle.
Then, in step S19, detect above-mentioned power switch 31, bonnet switch 32, rewind switch 33, first release-push 34, second release-push 35, the switch 36 of looking in the distance, the state variation of wide angle switch 37 each switches and current state.Then, in step S20, make the LCD25 action, open processing and carry out the demonstration that needs to show.
And, in step S21, judge whether the state of power switch 31 changes.Here, under the situation of the state variation of power switch 31, jump to the beginning of this program.In addition, in above-mentioned steps S21, under the situation that the state of power switch 31 does not have to change, judge in the step S22 that follows whether the state of bonnet switch 32 changes.And, in the state variation of bonnet switch 32 situation under, jump to the beginning of this program.On the other hand, the state at bonnet switch 32 does not have to enter into step S23 under the situation of variation.
In step S23, judge whether the state that rewinds switch 33 changes.Here, under the situation of the state variation of rewinding switch 33, enter into step S24.
In step S24, judge whether the current state that rewinds switch 33 is out state.As a result, be out to enter into step S25 under the situation of state rewinding switch 33.And, in this step S25, judge the sign of the state of the bonnet (not shown) that expression is current, the state of F_BKCLOS.Here, F_BKCLOS is under the situation of " 1 " at sign, enters into step S26.
Above-mentioned sign F_BKCLOS represents that for the situation of " 1 " state of bonnet (not shown) is a closure state.Thus, here, the situation of the closure state of bonnet (not shown) is to rewind switch 33 when becoming out state from off status.That is, be the situation that to rewind processing.Therefore, in step S26, sign, the F_RWREQ that expression need be rewinded processing are made as " 1 ".Afterwards, enter into above-mentioned steps S9.Thus, as mentioned above, the judgement by step S13 is branched off into step S14, carries out and rewinds processing.
In addition, among the above-mentioned steps S24, rewinding switch 33 under the situation of off status, in step S25, at sign F_BKCLOS is under the situation of " 0 " or among the above-mentioned steps S23, under the situation that does not have to change at the state that rewinds switch 33, owing to there is no need to rewind processing, so enter into step S27.
In step S27, make 26 actions of above-mentioned flash lamp circuit, and main capacitor 54 is carried out the charging of the energy that flash light emission uses.And, in the PERCOM peripheral communication of the step S28 that follows is handled, carry out the processing identical with above-mentioned steps S2.Further, in step S29, carry out mode switch and handle.
Then, in step S30, judge whether first release-push 34 has changed to the state of opening from off status.Here, change to out under the situation of state from off status, enter into step S31, and carry out the release processing of expose warming-up exercise and exposure actions at first release-push 34.The details that this release is handled is described in the back.
In this release processing procedure, carried out under the situation of exposure-processed, will in discharging processing, expression need carry out being made as " 1 " along sign, F_WNDREQ that scrolling is done.Owing to handle, after the release of having carried out this step S31 is handled, enter into above-mentioned steps S9 according to the state of this sign F_WNDREQ.And in step S9, as mentioned above, F_WNDREQ is under the situation of " 1 " at sign, enters into step S10 and carry out to lick one action.
In above-mentioned steps S30, when not discharging request, promptly first release-push 34 does not become out under the situation of state from off status, enters into step S32.And in this step S32, whether one of them that judge look in the distance switch 36 and wide angle switch 37 has changed to the state of opening from off status.
Here, changed under the situation of the state of opening from off status, entered into step S33 in one of them of look in the distance switch 36 and wide angle switch 37.And, in this step S33, control zoom drive circuit 13, and carry out the zoom drive of carrying out the zoom control action and handle.
This zoom drive is handled back or the switch 36 of looking in the distance in above-mentioned steps S32, wide angle switch 37 does not all become out from off status under the situation of state having carried out, and enters into above-mentioned steps S19.And, repeat above-mentioned processing, and form major cycle.
Then, with reference to the process flow diagram of Fig. 3, the detailed action of the release processing of step S31 in above-mentioned Fig. 2 process flow diagram is described.
Handle if begin to discharge, then at first in the range finding of step S41 is handled, control range finding portion 11, as above-mentioned, measure the distance L between subject, the data that are directly proportional with the inverse of distance of output are used as measurement result, and this measurement result is stored among the LDATA as the RAM (not shown) in the CPU10.
Then, in the photometry of step S42 is handled, control light measuring circuit 12, and measure the brightness of photographed scene central portion and brightness on every side (below, be called surrounding brightness) and be used as subject brightness.Further, in step S43,, carry out the lens derived quantity computing of the derived quantity computing of necessary condenser lens in order to reach the focus coincidence according to the position of zoom and the inverse of above-mentioned distance.
Then, in the exposure calculation process of step S44,, carry out the computing of the flash light emission amount of shutter control time and flash unit according to subject brightness measured in above-mentioned steps S42.And, in step S45, read the state of switch (SW) that detects first release-push 34, second release-push 35.Here, in following step S46 and S47, judge first release-push 34 that is read in, the state of second release-push 35.
In step S46, judge whether first release-push 34 has been set as the pass.Here, be set as under the situation of closing at first release-push 34, second release-push 35 also is to close and can not become and hold.Therefore, owing to stopped release movement, institute stops the release processing and this program of withdrawing from.
On the other hand, under the situation that first release-push 34 is not set to close in above-mentioned steps S46, because the state of opening of first release-push 34 continues, so enter into step S47 and judge the state of second release-push 35.
In step S47, not for to open under the situation of state, enter into above-mentioned steps S45 at second release-push 35, and carry out switch once more and read processing.On the contrary, when second release-push 35 in step S47 for to open under the situation of state, owing to need the beginning exposure actions, so enter into next step S48.
Like this, the processing of repeating step S45～S47, up to first release-push 34 for off status or second release-push 35 for opening state.
In step S48, carry out the drive controlling of condenser lens according to the drive amount of the condenser lens that in above-mentioned steps S43, calculates, and become the focus coincidence status.In the step S49 that follows,, and carry out exposure actions according to shutter control time that in above-mentioned steps S44, calculates and flash light emission amount.
In step S50, owing in above-mentioned steps S46, stopped exposure actions, control so the lens position that makes condenser lens return initial position resets.Further, in step S51, in order to lick the photographic film of having finished exposure, the sign F_WNDREQ that expression need be carried out pulleying control is made as " 1 ".Afterwards, stop discharging and handle, and this program of withdrawing from.
Here, with reference to the process flow diagram of Fig. 4, the detailed action of the exposure calculation process of step S44 in the process flow diagram of above-mentioned Fig. 3 is described.
In addition, define the value relevant that the following describes as follows with APEX.
SV=log
2(ISO light sensitivity * 0.32) .... (3)
AV＝log
2(Fno
2) ….(4)
TV＝log
2(1/SS) ….(5)
DV＝log
2(L2) ….(6)
GV＝log
2(Gno
2) ….(7)
EV＝AV+TV＝BV+SV ….(8)
Wherein, SS: aperture time, L: subject distance
After entering this exposure operation processing program, at first in step S61,, calculate the SV value of film according to the DX sign indicating number that is arranged on the spool box 51.Then, in step S62, use the range finding result (data that are directly proportional with the inverse of distance) of step S41 in the process flow diagram of above-mentioned Fig. 3, calculate the DV value.
In step S63, according to the BV value that calculates as the subject brightness of the photometry result of step S42 in above-mentioned Fig. 3 process flow diagram and surrounding brightness separately.And, in step S64, the AV value when calculating shutter and open according to current zoom position.Further, in step S65, obtain the EV value according to above-mentioned BV value and SV value.
Then, in step S66,, judge to have or not flashlamp luminous according to size or skin makeup pattern and the pressure light-emitting mode isotype of EV.In step S67, calculate the TV value according to EV value and AV value.
And, in step S68, obtain the suitable suitable GV value of flash light emission amount of flash unit by following formula.
Suitable AV value+DV value+ISO100SV value-SV value during GV value=luminous
And, in step S69, carry out the correction of luminous quantity.This is, when the skin makeup pattern, proofreaies and correct the GV value of obtaining on above-mentioned steps S68, and its details is described in the back.
In step S70,, calculate the control time of shutter according to the TV value of in above-mentioned steps S67, obtaining.And, in step S71, calculate fluorescent lifetime according to the GV value of in above-mentioned steps S68, obtaining.Afterwards, stop the exposure calculation process, withdraw from this program.
Fig. 5 is the process flow diagram of the detailed action of the explanation luminous quantity correction that should proofread and correct step S69 in above-mentioned Fig. 4 process flow diagram of the GV value under the skin makeup pattern.
The skin makeup pattern is described here.
Utilize f-number (Fno), subject distance L, the film sensitivity (ISO light sensitivity) of lens to obtain the value that is called as light quantity of flash (Gno) by following formula (9).
Usually, when flash light emission amount, when making flashlamp luminous, can take the suitable photo of exposure with the flash unit that calculates by following formula (9).When making flashlamp luminous with the luminous quantity of Duoing than the suitable luminous quantity of flash unit, subject over-exposed under the worst condition, can not be differentiated subject (being called the photo that turns white).
But, when subject is carried out suitable overexposure, have can't see character facial spot or wrinkle, the colour of skin seems whiter effect.Show that by inquiry Japanese women generally likes the luminous quantity by the control flash unit, make its appropriate overexposure and take can not see face's spot or wrinkle, the photo that bleaches of the colour of skin simultaneously.
Here, by studies show that, only can not realize that by increasing a certain amount of luminous quantity the flashlamp luminous quantity is suitably excessive.Its reason is, different according to the size of the subject in the shooting picture and brightness, the correction of its developing room (being white balance during digital camera) amount has nothing in common with each other, even can take with suitable excessive luminous quantity at a photographed scene, but subject is turned white, even can not pick out captured content.
So-called skin makeup pattern is meant following illustrated method, is the luminous quantity of control flash unit, no matter makes can to constitute suitable over-exposed pattern under what scene.In the present embodiment, the user selects this skin makeup pattern by opening mode switch 38.
When the correction control of the luminous quantity that begins flash unit, and after entering into the luminous quantity correction program, at first in step S81, judge whether it is the skin makeup pattern.Here, when being the skin makeup pattern, enter into step S82, if not the skin makeup pattern then withdraws from this program.
In step S82, use subject distance L of obtaining by range finding portion 11 and the focal length that calculates by above-mentioned zoom drive signal deteching circuit 14, obtain the shooting multiplying power by following formula.
Take multiplying power=focal length/subject distance
Then, in step S83,, from table shown in Figure 6, select the GV correcting value according to the shooting multiplying power of in above-mentioned steps S82, obtaining.Thus, obtain the correcting value of taking multiplying power.In addition, studies show that it is big more preferably to take multiplying power, makes correcting value big more by various.
Here, because for calculating correcting value, if adopt the reference mode of table shown in Figure 6, the relation of then taking multiplying power and correcting value is not straight line.So be approximately under the situation of straight line, majority need be proofreaied and correct with straight line.
In step S84,, calculate the correcting value that obtains by brightness by following formula according to the surrounding brightness of subject.Fig. 7 is expression with surrounding brightness [BV] value as transverse axis, the chart of brightness dependence with the GV correcting value during as the longitudinal axis, is shown below, and it is the relation of linear function.Set its slope and intercept by research.
Correcting value=0.1503* surrounding brightness-1.4196 according to brightness
In step S85, the GV correcting value addition that GV correcting value that the shooting multiplying power that will try to achieve in above-mentioned steps S83 obtains and the surrounding brightness of trying to achieve in above-mentioned steps S84 obtain, and obtain all correcting values.Here, above-mentioned correcting value and the result be under the situation of negative, be made as " 0 ".
Fig. 8 is the table of the actual all correcting values of trying to achieve of expression.
The table of key diagram 8, vertical (OK) direction indication surrounding brightness [BV] value, horizontal (row) direction indication is taken multiplying power, the numeric representation GV correcting value shown in the table.
And, in step S86, be used in all correcting values that above-mentioned steps S85 tries to achieve and proofread and correct the GV value.Afterwards, stop the treatment for correcting of luminous quantity, withdraw from this program.
Above, as illustrated among first embodiment, calculate GV value according to following formula by utilize taking multiplying power and surrounding brightness, then no matter in which kind of scene, also can control the flash light emission amount of flash unit, feasible can correct exposure excessive.
Luminous GV value=suitable GV value+GV correcting value
In addition, so-called suitably GV value, be meant the Gno that Fno, subject distance L and the film sensitivity (ISO light sensitivity) that will utilize camera calculates by above-mentioned (9) formula, be converted to value after the GV value by above-mentioned (7) formula again, so-called luminous GV value is meant actual luminous GV value.
(second embodiment)
Below, the second embodiment of the present invention is described.
In above-mentioned first embodiment, illustrated according to taking multiplying power and surrounding brightness and proofreaied and correct the example of the luminous quantity of flash unit.But, under for the situation of camera that does not have the single focus capture lens of having of zoom mechanism,, also can obtain identical effect with above-mentioned first embodiment even proofread and correct the luminous quantity of flash unit by subject distance and surrounding brightness.Second embodiment illustrates this example with camera of single focus capture lens.
In this second embodiment, the electrical structure of camera constitutes zoom drive circuit 13, zoom motor 45 and zoom drive signal deteching circuit 14 structure afterwards in the block diagram of removing Fig. 1.In addition,, removed step S32 and S33 in Fig. 2 process flow diagram,, be identical action as for the release processing flow chart of Fig. 3 and the exposure operational flowchart of Fig. 4 for master routine.Therefore, for these structures and action, same Reference numeral is paid with a part, and omitted its diagram and explanation.
The difference of the action of second embodiment and above-mentioned first embodiment only is the process flow diagram of the explanation luminous quantity corrective action of Fig. 9.Below, with reference to the process flow diagram of Fig. 9, the luminous quantity corrective action of second embodiment is described.
When the luminous quantity correction of the step S69 in Fig. 4 process flow diagram is performed, enter the luminous quantity correction program of Fig. 9, the luminous quantity of beginning flash unit is proofreaied and correct control.And, at first in step S91, judge whether to be the skin makeup pattern.Here, under the situation that is the skin makeup pattern, enter into step S92,, then withdraw from this program if be not the skin makeup pattern.
In step S92,, from shooting multiplying power dependence table shown in Figure 10, select the GV correcting value according to the subject distance L of being tried to achieve by range finding portion 11.Thus, obtain the correcting value of basis to the distance of subject.At this moment, for example be divided into four grades and setting correcting value separately.
Then, in step S93,, calculate correcting value according to brightness according to the surrounding brightness of photographed scene.Further, in step S94, will in above-mentioned steps S92, obtain according to the GV correcting value of subject distance L and the GV correcting value addition of being obtained at above-mentioned steps S93 according to surrounding brightness, and obtain all correcting values.Here, be under the situation of negative in addition result, be made as " 0 ".
And, in step S95, proofread and correct the GV value according to all correcting values of trying to achieve among the above-mentioned steps S94.Afterwards, stop the treatment for correcting of luminous quantity, and this program of withdrawing from.
Like this, according to second embodiment,, also can control the flash light emission amount of flash unit according to subject distance and surrounding brightness even there is not the camera of zoom function.
(the 3rd embodiment)
Below, the third embodiment of the present invention is described.
Above-mentioned first and second embodiment, but the camera with range finding portion of AF (automatic focus) has been described.But,,, just can obtain identical effect with above-mentioned first embodiment as long as the fixing focal length that use calculates from zoom drive signal deteching circuit 14 is proofreaied and correct the luminous quantity of flash unit when being when not having the camera of auto-focus function.
The 3rd embodiment with this camera that does not have an auto-focus function as an example.
In the 3rd embodiment, the circuit structure of camera constitutes and remove the range finding portion 11 of containing sensitive lens 41a, 41b and sensor array 42a, 42b from the block diagram of Fig. 1.
In addition, master routine is identical with the process flow diagram of Fig. 2, removes in the release processing flow chart of Fig. 3 outside the processing action that the DV value of removing step S62 in the exposure operational flowchart of range finding, Fig. 4 of step S41 calculates, and other action is identical.
Corrective action for luminous quantity, in the step S92 of the process flow diagram of Fig. 9 of above-mentioned second embodiment, from the table of Figure 10, select the GV correcting value according to the subject distance L, also this action can be changed to the action of from table shown in Figure 11, selecting the GV correcting value according to focal length.At this moment, for example, be the various situations of wide-angle (WIDE), standard (STANDARD), look in the distance (TELE), and set correcting value separately respectively according to the focal length of capture lens.
Because other structure is identical with above-mentioned first and second embodiment with action, so to pay same Reference numeral with a part, omit its diagram and explanation.
Like this, in the 3rd embodiment,, also can use the focal length of capture lens to control the luminous quantity of flash unit even there is not the camera of auto-focus function.
(the 4th embodiment)
Below, the fourth embodiment of the present invention is described.
Though in above-mentioned first embodiment, illustrated according to taking multiplying power and surrounding brightness and proofreaied and correct the example of the luminous quantity of flash unit, even but proofread and correct the luminous quantity of flasher according to the luminance difference of intermediate luminance of taking multiplying power and photographed scene and surrounding brightness, also can obtain the effect identical with first embodiment.
The 4th embodiment illustrates that this luminance difference by the central brightness of taking multiplying power and photographed scene and surrounding brightness proofreaies and correct the camera of the luminous quantity of flash unit.
The action of the 4th embodiment is different with above-mentioned first embodiment's, and process flow diagram Fig. 5 that the luminous quantity corrective action only will be described is instead of Figure 12.Therefore, for the structure and the action of the camera of the 4th embodiment, same Reference numeral has been paid part same as the previously described embodiments, and omitted its diagram and explanation.
Below, with reference to the process flow diagram of Figure 12, the luminous quantity corrective action of the 4th embodiment is described.
Proofread and correct when being performed when the luminous quantity of the step S69 of Fig. 4 process flow diagram, enter into the luminous quantity correction program of Figure 12, the luminous quantity of beginning flash unit is proofreaied and correct control.And, at first in step S101, judge whether to be the skin makeup pattern.Here, for the skin makeup pattern time, enter into step S102, when not being the skin makeup pattern, withdraw from this program.
Then, in step S102, utilize the shooting multiplying power of obtaining by range finding portion 11, from epiphase shown in Figure 6 with table select the GV correcting value.Thus, obtain correcting value.Further, in step S103, according to the luminance difference of the central brightness and the surrounding brightness of photographed scene, the arithmetic formula by obtaining in advance calculates the correcting value that obtains according to luminance difference.
In step S104, will by in above-mentioned steps S102, obtain according to the GV correcting value addition of obtaining among the GV correcting value of taking multiplying power and the above-mentioned steps S13, and obtain all correcting values.Here, be under the situation of negative in addition result, be made as " 0 ".
And, in step S105, proofread and correct the GV value according to all correcting values of in above-mentioned steps S104, obtaining.Afterwards, stop the treatment for correcting of luminous quantity, and this program of withdrawing from.
Like this, according to the 4th embodiment, control the luminous quantity of flash unit according to the luminance difference of the central brightness of taking multiplying power and photographed scene and surrounding brightness.
In addition, except that above-mentioned first to the 4th embodiment, even,, also can obtain identical effect though its effect is poorer than above-mentioned first to the 4th embodiment only by taking the flash light emission amount that multiplying power or surrounding brightness are proofreaied and correct flash unit.
Further, in the above-described embodiments, though the user carries out the selection of skin makeup pattern by switch mode switch 38, but be not limited to this, for example judging that main subject is under personage's the situation, also can be for example wait and judge subject, send the light quantity of being proofreaied and correct automatically according to the focus information in a plurality of places in the subject imaging.
In addition, except that above-mentioned first to the 4th embodiment, the present invention can implement various distortion in the scope that does not break away from spirit of the present invention.
For example, though the foregoing description will be built-in with the camera of flash unit and describe as an example, but so long as be built-in with the camera of flash unit, be not limited to use the camera of silver film, also be applicable to be the digital camera of the laggard line item of electronic data with taking the photograph image transitions certainly.At this moment, for the film sensitivity of (9) formula, can import the ISO sensitivity value of setting by digital camera.
Further,, be not limited to this,, also go for external camera flashlamp device so long as can increase the flashlamp of flash light emission amount with skin makeup pattern interlock though the foregoing description has illustrated the camera that is built-in with flash unit.
In addition, in the above-described embodiments, although understand the example of the flash light emission amount of control flash unit, but be not limited to take the camera of rest image, can also be applicable to have the light source that illumination light continuous in time is projected subject, and the video camera of record moving image.In addition, except flash unit, can also be applicable to the digital camera as projecting unit with LED (light emitting diode).
The feature of embodiment
[1] camera shown in the embodiment is characterized in that, comprising:
Take the unit, take subject;
Projecting unit is to the subject projecting beam
The value for the projection quantity control module is controlled the value for the projection quantity of above-mentioned projecting unit
The corrected value arithmetic element calculates the corrected value that should proofread and correct above-mentioned value for the projection quantity;
Above-mentioned value for the projection quantity control module usually with character facial as main reference object and selected according to the corrected value that aforementioned calculation goes out, the value for the projection quantity of above-mentioned projecting unit to be increased under the situation of specific screening-mode of projection light.
According to this structure, can obtain the brightness face image different with common personage's photographed scene.
[2] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [1] is put down in writing, compare with the situation of common screening-mode outside having selected above-mentioned specific screening-mode, above-mentioned value for the projection quantity control module increases the value for the projection quantity of above-mentioned projecting unit according to above-mentioned corrected value under the situation of having selected above-mentioned specific screening-mode.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [1], can also obtain the common bright face image of personage's photographed scene of brightness ratio.
[3] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [2] are put down in writing, also have the photometry unit of the brightness of measuring subject, above-mentioned corrected value arithmetic element correspondence calculates above-mentioned corrected value according to the photometry result of above-mentioned photometry unit.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [2], can also make the brightness recruitment of face image become suitable.
[4] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [3] are put down in writing, above-mentioned corrected value arithmetic element calculates photometry result poor of photometry result around the subject measured by above-mentioned photometry unit and subject central authorities, and with it as above-mentioned photometry result.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [3], can also obtain the brightness face image different by taking multiplying power, the central brightness of photographed scene and the luminance difference of surrounding brightness with common personage's photographed scene.
[5] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [3] are put down in writing, under the bright situation of the brightness ratio setting of the subject of measuring in above-mentioned photometry unit, above-mentioned corrected value arithmetic element calculates than corresponding to the big value of afore mentioned rules value, and with it as above-mentioned corrected value.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [3], under the bright situation of the background of subject, because value for the projection quantity is big, so can obtain the face image that do not increased by the brightness of background influence.
[6] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [1] is put down in writing, also have
Range cells measures the distance of subject;
The multiplying power arithmetic element is calculated the shooting multiplying power according to the focometer to the capture lens of the distance of above-mentioned subject and above-mentioned shooting unit;
Above-mentioned corrected value arithmetic element is calculated above-mentioned corrected value according to the above-mentioned shooting dynameter that is calculated by above-mentioned multiplying power arithmetic element.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [1], can also obtain the brightness face image different according to shooting multiplying power from calculating to the focometer of the capture lens of the distance of subject and above-mentioned shooting unit with common personage's photographed scene.
[7] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [1] is put down in writing, also have
The photometry unit, the brightness of measuring subject;
Range cells measures the distance of above-mentioned subject;
The multiplying power arithmetic element is calculated the shooting multiplying power according to the focometer to the capture lens of the distance of above-mentioned subject and above-mentioned shooting unit;
Above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to photometry result and the above-mentioned shooting multiplying power measured by above-mentioned photometry unit.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [1], can also obtain suitably increasing the face image of brightness according to shooting condition.
[8] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [6] or [7] are put down in writing, above-mentioned corrected value arithmetic element above-mentioned shooting multiplying power than the big situation of the shooting multiplying power of regulation under, calculate as above-mentioned corrected value than value also big when the shooting multiplying power of afore mentioned rules.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [6] or [7], when amplifying character facial, also can suitably be increased the face image of brightness.
[9] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [1] is put down in writing, also have
The photometry unit, the brightness of measuring subject;
Range cells measures the distance of above-mentioned subject;
Above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to the photometry result who is measured by above-mentioned photometry unit with by the range finding result that above-mentioned range cells records.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [1], can also suitably be increased the face image of brightness from photometry result and range finding result.
[10] camera shown in the embodiment,
It is characterized in that: in the camera that above-mentioned [1] is put down in writing, also have
The photometry unit, the brightness of measuring subject;
Above-mentioned corrected value arithmetic element is calculated above-mentioned corrected value according to the focometer of the capture lens of photometry result who is measured by above-mentioned photometry unit and above-mentioned shooting unit.
According to this structure, the effect of the camera of being put down in writing except above-mentioned [1], can also suitably be increased the face image of brightness from the focal length of photometry result and capture lens.
[11] the projection control method shown in the embodiment,
Control is to the value for the projection quantity of the projecting unit of subject projecting beam, it is characterized in that: under the situation of the specific screening-mode of the projection of having selected character facial is carried out as main reference object always light, calculate the corrected value of above-mentioned value for the projection quantity, and increase value for the projection quantity according to the corrected value that is calculated.
According to this structure, can obtain the projection control method that the brightness face image different with common personage's photographed scene used.
[12] camera shown in the embodiment,
It is characterized in that, comprise selected cell, the screening-mode of selection regulation is the pattern of main reference object as personage's face;
Projecting unit is to the subject projecting beam;
The value for the projection quantity control module is selecting to control above-mentioned projecting unit under the situation of afore mentioned rules screening-mode by above-mentioned selected cell, make it increase the value for the projection quantity of light.
According to this structure, in selected screening-mode, can obtain the brightness face image different with common personage's photographed scene.
[effect of invention]
As above like this, according to the present invention, can be provided in subject is in personage's the situation, can Camera and the projection control method avoiding clear demonstration face and take.
Claims (8)
1. camera, this camera has the projecting unit to the subject projecting beam, and this camera feature is, comprising:
Take the unit, take subject;
The value for the projection quantity control module is controlled the value for the projection quantity of above-mentioned projecting unit;
The corrected value arithmetic element calculates the corrected value that should proofread and correct above-mentioned value for the projection quantity; And
Measure the photometry unit of the brightness of subject,
Above-mentioned corrected value arithmetic element correspondence calculates above-mentioned corrected value according to the photometry result of above-mentioned photometry unit,
Above-mentioned value for the projection quantity control module usually with character facial as main reference object and selected according to the corrected value that aforementioned calculation goes out, the value for the projection quantity of above-mentioned projecting unit to be increased under the situation of specific screening-mode of projection light.
2. camera according to claim 1 is characterized in that: above-mentioned corrected value arithmetic element, calculate photometry result poor of photometry result around the subject measured by above-mentioned photometry unit and subject central authorities, and with it as above-mentioned photometry result.
3. camera according to claim 1, it is characterized in that: under the bright situation of the brightness ratio setting of the subject of measuring in above-mentioned photometry unit, above-mentioned corrected value arithmetic element calculates than corresponding to the big value of the corrected value of afore mentioned rules value, and with it as above-mentioned corrected value.
4. camera according to claim 1 is characterized in that: also have
Range cells measures the distance of above-mentioned subject; And
The multiplying power arithmetic element is calculated the shooting multiplying power according to the focometer to the capture lens of the distance of above-mentioned subject and above-mentioned shooting unit,
Above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to photometry result and the above-mentioned shooting multiplying power measured by above-mentioned photometry unit.
5. camera according to claim 4 is characterized in that: above-mentioned corrected value arithmetic element above-mentioned shooting multiplying power than the big situation of the shooting multiplying power of regulation under, calculate as above-mentioned corrected value than value also big when the shooting multiplying power of afore mentioned rules.
6. camera according to claim 1 is characterized in that: also have
Range cells measures the distance of above-mentioned subject,
Above-mentioned corrected value arithmetic element calculates above-mentioned corrected value according to the photometry result who is measured by above-mentioned photometry unit with by the range finding result that above-mentioned range cells records.
7. camera according to claim 1 is characterized in that: above-mentioned corrected value arithmetic element is calculated above-mentioned corrected value according to the focometer of the capture lens of photometry result who is measured by above-mentioned photometry unit and above-mentioned shooting unit.
8. value for the projection quantity control method, this method is used to control the value for the projection quantity to the projecting unit of subject projecting beam, this method is characterised in that: under the situation of the specific screening-mode of the projection of having selected character facial is carried out as main reference object always light, calculate the corrected value of above-mentioned value for the projection quantity, and increase value for the projection quantity according to the corrected value that calculated, wherein the calculating to the corrected value of above-mentioned value for the projection quantity is to carry out according to the photometry result that the brightness of subject is measured.
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| Application Number | Priority Date | Filing Date | Title |
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| JP061755/2003 | 2003-03-07 | ||
| JP2003061755A JP4315708B2 (en) | 2003-03-07 | 2003-03-07 | camera |
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| JP2009276560A (en) * | 2008-05-14 | 2009-11-26 | Ricoh Co Ltd | Imaging apparatus and imaging method |
| JP2010027077A (en) * | 2009-11-02 | 2010-02-04 | Seiko Epson Corp | Camera, and method and program for adjusting image brightness |
| JP6423669B2 (en) * | 2014-09-24 | 2018-11-14 | キヤノン株式会社 | Imaging apparatus and control method thereof |
| CN105635595B (en) * | 2015-05-29 | 2019-11-08 | 宇龙计算机通信科技(深圳)有限公司 | The control method of flash lamp, the control device of flash lamp and mobile terminal |
| CN105704395B (en) * | 2016-04-05 | 2018-09-14 | 广东欧珀移动通信有限公司 | Photographic method and camera arrangement |
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| CN1126323A (en) * | 1994-06-15 | 1996-07-10 | 三星航空产业株式会社 | Systema and method for recording successive images of the same object at varying depths of field |
| US5687400A (en) * | 1995-04-14 | 1997-11-11 | Fuji Photo Optical Co., Ltd. | Built-in flash camera |
| JP2002232779A (en) * | 2001-01-29 | 2002-08-16 | Yoshiaki Masuno | Photographing camera of certification photo and its using method |
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2003
- 2003-03-07 JP JP2003061755A patent/JP4315708B2/en not_active Expired - Fee Related
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- 2004-03-08 CN CNB2004100064796A patent/CN100440021C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126323A (en) * | 1994-06-15 | 1996-07-10 | 三星航空产业株式会社 | Systema and method for recording successive images of the same object at varying depths of field |
| US5687400A (en) * | 1995-04-14 | 1997-11-11 | Fuji Photo Optical Co., Ltd. | Built-in flash camera |
| JP2002232779A (en) * | 2001-01-29 | 2002-08-16 | Yoshiaki Masuno | Photographing camera of certification photo and its using method |
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| JP2004271845A (en) | 2004-09-30 |
| CN1527121A (en) | 2004-09-08 |
| JP4315708B2 (en) | 2009-08-19 |
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