CN1196966C - Camera with short-distance photographic function - Google Patents
Camera with short-distance photographic function Download PDFInfo
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- CN1196966C CN1196966C CNB001046004A CN00104600A CN1196966C CN 1196966 C CN1196966 C CN 1196966C CN B001046004 A CNB001046004 A CN B001046004A CN 00104600 A CN00104600 A CN 00104600A CN 1196966 C CN1196966 C CN 1196966C
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Abstract
PROBLEM TO BE SOLVED: To conduct photographing focused properly all the time, and to prevent an erroneous operation such as unfocused photographing of a subject outside a field depth and careless photographing in an improper photographing mode. SOLUTION: In this camera, photographing is allowed only when a subject exists within a field depth, using an AF ranging part 6, and an photographing operation is prohibited when it exist outside the field depth. The camera includes a close-photographing mode for allowing close photographing by moving and fixing a lens position to a position to allow the close photographing and by making a diaphragm value smaller than that of an ordinary photographing mode to deepen the field depth. When the distance data exists outside the field depth, the photographing operation is prohibited.
Description
Technical field
The present invention relates to camera, relate in particular to camera with short-distance photographic function, can select to set the photograph mode that comprises common photograph mode and close-range photography pattern by the mode initialization operation, but above-mentioned close-range photography pattern is to instigate lens position to move to the close-range photography stationkeeping, and f-number is set at littler than above-mentioned common photograph mode, deepen the depth of field, make close-range photography become possibility.
Background technology
In the past, be extensive use of so-called silver halide photography machine in the photography of taking a picture, it uses silver salt film pickup.On the other hand, in recent years, the Electrofax that is called digital camera etc. is promptly popularized, they are by for example charge coupling device (Charge Coupled Device, below brief note is for CCD) solid photographic element such as photographic element photographs to subject, obtain the view data of the rest image or the motion video of subject, be recorded on the integrated circuit card of so-called PC card etc. or video floppy etc. digitally.
No matter be silver halide photography machine or Electrofax, have the distance measurement function and the automatic focus (Autofocus that detect the subject distance mostly, below brief note is AF) function, above-mentioned AF function is meant the amount of feeding that utilizes this distance measurement function to control photographic lens automatically, and it is focused on desirable subject automatically.
In addition, the camera that has also is provided with short-distance photographic function, i.e. function of taking feature close-shot photo with the distance nearer than the minimum distance of common photography.This camera function can not only be used for the personage, can also be used for flowers and plants, toy, commodity or document data etc., is the additional purpose of camera.
For example the spy opens shown in the flat 10-325972 communique, and is general, and the lens amount of feeding was big when the close-range photography ratio was photographed usually, and it can be focused on approaching subject, and under this closely state, the depth of field shoals, and by stop down, makes it become possibility.
But this mechanism that is used for close-range photography is owing to make camera complicated and maximize, and is difficult to be located on the cheap camera such as minicam.,, feel that the closest approach of the photographic scope of photography is far away usually,, also wish to photograph that this occasion is many with distance more near subject even be not special subject but subject usually for the camera that uses cheap lens.
So, open shown in the flat 5-313223 communique as the spy, the nearest photo distance state when the photographic lens position is arranged at common photography, aperture is little during than common photography, deepens the depth of field, makes that close-range photography may.
Usually, in this camera, realize with the close-range photography pattern, this close-range photography pattern is to select one of photograph mode of setting operation, when selecting this close-range photography pattern, but make lens position move to the close-range photography stationkeeping, and f-number is set at littler, deepens the depth of field than above-mentioned common photograph mode.Promptly, in having the camera of this short-distance photographic function, subject is present in occasion in the above-mentioned depth of field, can obtain photo in focus., subject is in the outer occasion of the above-mentioned depth of field, becomes the focusing blurred image.
Summary of the invention
The present invention puts forward in view of the existing problem of above-mentioned prior art, the objective of the invention is to, a kind of camera with short-distance photographic function is provided, it utilizes the AF function, it is photographic only to make subject be in the interior occasion of the depth of field, be in the outer occasion of the above-mentioned depth of field and work as subject, forbid the photography action, the suitable photography of focusing.
To achieve these goals, the present invention proposes a kind of camera with short-distance photographic function, can select to set photograph mode by the operation of setting pattern, photograph mode comprises common photograph mode and close-range photography pattern, the close-range photography pattern is but that lens position is moved to the close-range photography stationkeeping, f-number is set at littler, deepens the depth of field, make close-range photography become possibility than above-mentioned common photograph mode; It is characterized in that, be provided with:
Distance measuring equipment, be used to obtain with subject apart from corresponding ranging data;
The distance operation device will be transformed into range data by the ranging data of above-mentioned distance measuring equipment output;
Forbid the movement device of photographing, relatively range data and the depth of view information that is got by above-mentioned distance operation device calculating if above-mentioned range data is in outside the depth of field, forbidden the photography action.
According to the camera with short-distance photographic function of the present invention, its feature also is, further comprises:
But the releasing means of two-period form operation is according to practicable the 1st section the 1st releasing operation of the operational ton of release-push and the 2nd section the 2nd releasing operation;
Control device, the 1st releasing operation by above-mentioned releasing means, control is carried out the range finding action by above-mentioned distance measuring equipment, the 2nd releasing operation by above-mentioned releasing means, control enters the photography action, simultaneously, and under above-mentioned the 1st releasing operation state, above-mentioned range data is in the outer occasion of the depth of field, and control is carried out institute and decide to warn demonstration.
According to the camera with short-distance photographic function of the present invention, its feature is that also control device comprises that the flicker by luminous displaing part shows the implementation device shown of warning surely.
According to the camera with short-distance photographic function of the present invention, its feature also is, control device is included in by above-mentioned distance measuring equipment can not normally be found range occasion as a result no matter how the subject distance all allows the device of photographing.
According to the camera with short-distance photographic function of the present invention, its feature also is, control device is included in by the above-mentioned distance measuring equipment occasion of can not normally being found range as a result and carries out above-mentioned warning device shown.
According to the camera with short-distance photographic function of the present invention, its feature also is, control device is included in by the above-mentioned distance measuring equipment occasion of can not normally being found range as a result and carries out above-mentioned warning device shown, and it is carried out flicker cycle that above-mentioned warning shows and is in the depth of field with above-mentioned range data occasion is different outward.
According to the camera with short-distance photographic function of the present invention, its feature is that also control device comprises regards the shortest photo distance in the common photograph mode as allow the remote side of the depth of field in the close-range photography pattern device.
According to the camera with short-distance photographic function of the present invention, its feature also is, but further be provided with use with photograph mode usually in the equal lens position of the shortest photo distance as the device of the lens position of close-range photography.
According to the camera with short-distance photographic function of the present invention, its feature also is, further be provided with and make flashlamp often luminous and shutter speed is set at the device of set time in above-mentioned close-range photography pattern, the said fixing time shutter speed minimum with making the hand wobble influence is corresponding.
The following describes effect of the present invention.
According to the camera with short-distance photographic function of the present invention, utilize the AF function, it is photographic only to make subject be in the interior occasion of the depth of field, be in the outer occasion of the depth of field and forbid the photography action, can carry out suitable focusing photography, especially can prevent under the out-focus state the outer subject of the depth of field photographed or maloperation such as the down careless photography of improper photograph mode state.
According to the camera with short-distance photographic function of the present invention, under what is called half pressed state of release-push, can hold by methods such as visual inspections and forbid photography state.
According to the camera with short-distance photographic function of the present invention, the subject that can not find range is positioned at depth of field occasion and also can photographs.
According to the camera with short-distance photographic function of the present invention, can discern the range finding failure in advance by methods such as visual inspections.
According to the camera with short-distance photographic function of the present invention, occasion in being in the depth of field but in common photographic scope, preferably with common camera style photography, the present invention can forbid photography in this occasion.
According to the camera with short-distance photographic function of the present invention, identical when being made as the maximum amount of movement of lens barrel with common photography, design lens barrel easily, reduce cost.
According to the camera with short-distance photographic function of the present invention, can avoid and troubles such as flash mode combination, carry out close-range photography easily.
Description of drawings
Fig. 1 is the block scheme that the camera-enabled that one embodiment of the invention relates to is represented on pattern ground;
Fig. 2 is the process flow diagram of action when being used for the connection of key diagram 1 camera shooting the 1st release-push;
Fig. 3 is the process flow diagram of action when being used for the connection of key diagram 1 camera shooting the 2nd release-push;
Fig. 4 is the process flow diagram that moves when being used for description operation Fig. 1 camera shooting mode switch;
Fig. 5 is the process flow diagram that moves when being used for description operation Fig. 1 camera temporal mode switch;
Fig. 6 is the mode chart that is used for the display format of key diagram 1 camera display part;
Fig. 7 is used for key diagram 1 camera display part at the show state mode chart of selecting normal mode as the photograph mode occasion;
Fig. 8 is used for key diagram 1 camera display part at the show state mode chart of selecting single AF pattern as the photograph mode occasion;
Fig. 9 is used for key diagram 1 camera display part at the show state mode chart of selecting the distant view pattern as the photograph mode occasion;
Figure 10 is used for key diagram 1 camera display part selecting closely pattern as the show state mode chart of photograph mode occasion.
Embodiment
With reference to the accompanying drawings, describe the embodiment of the invention in detail.
Fig. 1 is the block scheme that the camera-enabled that one embodiment of the invention relates to is represented on pattern ground, and camera shown in Figure 1 has time function and short-distance photographic function.It is provided with camera control part 1, power supply the 2, the 1st oscillator the 3, the 2nd oscillator 4, photometric measurer 5, AF range finding portion 6, flash lamp component 7, display 8, storage part 9, lens barrel drive division 10, film and transports control part the 11, the 1st release-push SW1, the 2nd release-push SW2, photograph mode switch SW 3, temporal mode switch SW 4, selection of time switch SW 5 and time configuration switch SW6.
Power supply 2 is the direct supplys that are made of battery etc., and output voltage is supplied with camera control part 1.The 1st oscillator 3 and the 2nd oscillator 4 are target oscillators when producing dual system, and the action of above-mentioned the 1st oscillator 3 and the 2nd oscillator 4 is by 1 control of camera control part.
The 1st oscillator 3 is the ceramic resonator that comprise ceramic vibrator X1, capacitor C1 and capacitor C2, the 1st oscillator 3 is under the state such as action standby etc. in system and uses by camera control part 1, do not use under system's dormant state, the control by controller of camera 1 stops it.
The 2nd oscillator 4 is the crystal oscillators that comprise quartz crystal X2, resistance R, capacitor C3 and capacitor C4, and no matter system is in the action holding state still is in dormant state, and it all moves, and the timing markers is supplied with camera control part 1.The 2nd oscillator 4 is the timing oscillators that are used for displaying calendar/time, with stable oscillation frequency vibration.
The photometric measurer 5 that constitutes light measurer is made of with integrated circuit (Integrated Circuit, below brief note is IC) the photometry that for example is used for automatic exposure control, by the light quantity of subject in the camera control part 1 control detection photography visual field etc.The AF range finding portion 6 that constitutes distance measuring equipment constitutes with IC by for example being used for self-focusing range finding, by subject distance in the camera control part 1 control detection photography visual field.
This occasion, AF range finding portion 6 uses the so-called multizone range measurement system that can find range to some ranging regions.In multizone range finding action, carry out for example range finding in seven zones of several regions, adopt the ranging information of minimum distance ranging region.
When the object light quantity not sufficient or when wishing that specific shot body to the photography visual field throws light on, flash lamp component 7 is luminous by 1 control of camera control part.When selecting the close-range photography pattern, control flash lamp component 7 is luminous usually for camera control part 1.Use the flashlamp occasion, confirm the charged state of flash lamp component 7, charge during undercharge.
The display 8 that constitutes display device is subjected to 1 control of camera control part to show the various states of this camera by for example liquid crystal display cells formations such as (LCD).By the mark of the photograph mode of the film count value of the calendar/temporal information that has the timing portion gained in the camera control part 1 for example in display 8 expression, photograph number or the remaining number of not photographing etc., expression setting, represent that battery mark that the residual electric weight of power supply 2 is whether enough etc. is (with reference to Fig. 6-Figure 10).
The 1st release-push SW1 and the 2nd release-push SW2 are the switches of only the time just connecting in operation of answer type certainly, by operating overlap action with the two-period form of the compression distance of the release-push (not have diagram) of two-period form action corresponding the 1st section and the 2nd section.The even shallow release-push of depressing, the 1st release-push SW1 connects, if further depress release-push deeply again, under the 1st release-push SW1 on-state, the 2nd release-push SW2 connects; If decontrol release-push, the 1st release-push SW1 and the 2nd release-push SW2 become disconnection.
In addition, make under the 1st release-push SW1 on-state at the shallow release-push of depressing, if further do not depress release-push but the relieving release-push, the 1st release-push SW1 becomes disconnection.
The ON Action of camera control part 1 response the 1st release-push SW1, carry out automatic exposure calculation process and AF calculation process according to the photometry result of photometric measurer 5 and the range finding result of AF range finding portion 6, the decision shutter is opened the duration (open/close constantly), luminous duration of flashlamp and the luminous moment of flashlamp etc.In addition, camera control part 1 focuses on calculation process, will be transformed into the feeding number of steps of the photographic lens that is used to focus on action by the range data that above-mentioned AF calculation process is tried to achieve, according to above-mentioned operation result, control lens barrel drive division 10 drives the photographic lens lens barrel, carries out focusing on action.
Lens barrel drive division 10 comprises the motor etc. that is used to drive the step motor of photographic lens lens barrel and is used to drive shutter, when focusing on action, drives the photographic lens lens barrel according to above-mentioned photographic lens feeding number of steps and toward the number of steps of position of readiness.On the photographic lens lens barrel except photographic lens and shutter, the also built-in position detector that is used to detect photographic lens lens barrel present position, be used to detect photographic lens lens barrel amount of movement mobile volume detector, be used to detect start-up detector that shutter starts and aperture device etc.
Film transports and establishes the detecting device etc. that is used to transport the motor of film and is used to detect the film amount of movement in the control part 11, is driven by camera control part 1, transports part film when the photography release, drives the rollback film when all numbers photographies finish.
Photograph mode switch SW 3 is the cameraman is switched the photograph mode of this camera according to factors such as photography scenery a switch by constituting from reversion switch of only just connecting when operating.By the operation on/off action repeatedly of pushing this photograph mode switch SW 3, order is switched the selection photograph mode.
For example, usually photograph mode be the automatic light-emitting mode of low-light level of multizone AF, promptly carry out the multizone range finding be autofocusing at the subject low-light level time make the luminous pattern of flashlamp.Can make each photograph mode by for example usually the photograph mode of photograph mode-single AF photograph mode (AF of single zone range finding)-longshot pattern-close-range photography pattern-usually-... the reiteration circulation is selected.
Temporal mode switch SW 4 is to be used to switch the switch that calendar/clock of setting this camera is represented pattern, by pressing operation on/off operation repeatedly, each display mode by for example show the date-demonstration month day year-demonstration day month year-demonstration day time-division-demonstration date-... the reiteration circulation is selected.
Selection of time switch SW 5 and time configuration switch SW6 are used to revise the switch that setting calendar/clock is represented.Selection of time switch SW 5 is by constituting from reversion switch of only just connecting when operating, and year, month, day, hour, min projects of select progressively calendar/clock display part when at every turn operating this selection of time switch SW 5, selected project are glimmered and shown.Time setting switch SW6 is by constituting from reversion switch of only just connecting when operating, and only to selecting the flicker items displayed effective through selection of time switch SW 5, by the making operation of this time setting switch SW6, the project that is in blink states increases by 1.
Display 8 has representation shown in Figure 6, represents the show state of common photograph mode, single AF photograph mode, longshot pattern and close-range photography pattern in Fig. 7, Fig. 8, Fig. 9 and Figure 10 respectively.Promptly, do not represent common photograph mode by there being special the demonstration among Fig. 7, there is roundlet to represent single AF photograph mode by substantial middle among Fig. 8 at the frame line, by in the frame line, there being mountain side by side to represent the longshot pattern, represent the close-range photography pattern by floral pattern among Figure 10 among Fig. 9.
With reference to Fig. 2-Figure 10 above-mentioned camera action is described.
The action corresponding with each switch SW 1-SW6 controlled in the operation input of camera control part 1 each switch SW 1-SW6 of response.Since the 1st section operation of the 1st release-push, the connection signal input camera control part 1 of the 1st release-push SW1, and camera control part 1 enters the 1st release-push SW1 and connects processing.
Fig. 2 is the process flow diagram that is used for illustrating action when photography the 1st release-push is connected.If beginning the 1st release-push SW1 connects handle, camera control part 1 carries out battery and confirms action, confirms whether power supply 2 is supplied with electric power essential for regular event, is the residual electric weight of battery (step S1).In the affirmation battery result of step S2 judgement above-mentioned steps S1, if power supply 2 supply capability deficiencies ("No" of step S2) then forbid discharging processing and finishing at step S3.This occasion, camera control part 1 suppresses release movement, becomes and is failure to actuate.Because the timing action of this affirmation battery action and displaying calendar/clock also can be moved under power supply 2 power shortage states, so can be with the action earlier of a little electric power.At this moment, as described later, what can preestablish a kind of status indication etc. for example forbids release information.
Judge the affirmation battery result of above-mentioned steps S1 at step S2, if power supply 2 electric power reach electric power occasion ("Yes" of step S2) essential for regular event, then detect the photometry action of subject light quantity at step S4 camera control part 1 control photometric measurer 5.Then, camera control part 1 carries out automatic exposure calculation process (step S5) according to above-mentioned photometry gained subject brightness as a result, the decision shutter open duration, aperture, luminous duration of flashlamp optionally, flashlamp in the luminous moment at least certain.
After this, 1 control of camera control part is as the AF range finding portion 6 of distance measuring equipment, detect subject distance (step S6), by the distance operation device calculation process of finding range, the result is transformed into range data with it according to range finding, and trying to achieve to be used to make does not have illustrated photographic lens to focus on the amount of feeding (step S7) on the subject.In above-mentioned range finding and range finding computing action, for example the common photograph mode occasion of the automatic light-emitting mode of multizone AF low-light level is carried out the range finding of seven ranging regions, adopts the range finding result who wherein detects to the ranging region of minimum distance, asks for the lens amount of feeding.
Then, camera control part 1 judges whether range finding is suitable among above-mentioned steps S6 and the S7, that for example judge whether to obtain is the result (step S8) that finds range unusually, if range finding does not have failure ("Yes" of step S8), then judge whether the close-range photography pattern at step S9, if close-range photography pattern ("Yes" of step S9), then at step S10 according to range finding computed range data as a result, judge whether to be in the depth of field.
The range finding result is an occasion ("Yes" of step S10) in the depth of field, then makes to focus at step S11 camera control part 1 to show that light emitting diode AFLED (not diagram) lights.If in step S10, the range finding result is the outer occasion ("No" of step S10) of the depth of field, then makes to focus at step S12 camera control part 1 to show that light emitting diode AFLED glimmered with the 2Hz cycle, and S13 forbids release information by settings such as status indications in step.
In addition, in step S9, be judged as and be not close-range photography pattern occasion ("No" of step S9), then judge whether to be in the photographic scope at step S14 camera control part 1, if be in the photographic scope ("Yes" of step S14), then make to focus on to show that light emitting diode AFLED lights at step S14.If in step S14, be judged to be the outer occasion ("No" of step S14) of photographic scope, then make to focus on to show that light emitting diode AFLED glimmered with the 2Hz cycle at step S16 camera control part 1, S17 forbids release information by settings such as status indications in step.
If judge range finding failure occasion ("No" of step S8), then make to focus on to show that light emitting diode AFLED glimmered with the 8Hz cycle at step S18 camera control part 1 at step S8.Even be in the depth of field or photographic scope in, make to focus on to show that light emitting diode AFLED lights, otherwise just flicker.In addition, be in the outer or outer occasion of photographic scope of the depth of field, will forbid discharging information set, make to focus on to show that light emitting diode AFLED glimmered with the 2Hz cycle; Range finding failure occasion will not forbid discharging information set, make to focus on to show that light emitting diode AFLED glimmered with the 8Hz cycle.Above-mentioned two states can be distinguished with focusing on the flicker cycle that shows light emitting diode AFLED.
Close-range photography pattern occasion, because no matter the little aperture of ambient light brightness settings, make flashlamp luminous, simultaneously, even also make flashlamp luminous sometimes, therefore in other photograph mode occasion, at step S19, camera control part 1 is luminous and whether judge whether to be necessary charging at the level of charge of the luminous occasion flash generator of flashlamp below decide degree according to whether making flashlamp, charges ("Yes" of step S19) as if needing, and then charges at step S20.
Then, judge whether the close-range photography pattern once more at step S21, non-close-range photography pattern occasion, at step S22, camera control part 1 focuses on calculation process, with the range finding computing and distance measurement value be transformed to the feeding number of steps of step motor, this number of steps has stipulated to be used to focus on the amount of feeding of the photographic lens lens barrel of action.Then, at step S23, focus on action, camera control part 1 by lens barrel drive division 10, makes the feeding of photographic lens lens barrel according to the feeding number of steps of gained among the above-mentioned steps S22, focuses on the subject.Judge close-range photography pattern occasion at step S21,, do not move so do not drive lens barrel because lens position has moved when mode initialization.
By above-mentioned steps, the 1st release-push SW1 connects processing and finishes, and waits for that the 2nd release-push SW2 connects or the 1st release-push SW1 disconnects.The 1st release-push SW1 disconnects occasion, carries out the 1st release-push disconnection process, and camera control part 1 makes to focus on and shows that light emitting diode AFLED turns off the light, and lens barrel is got back to position of readiness.
After the 1st release-push SW1 connects the processing end, the 2nd release-push SW2 is connected, carry out the 2nd release-push SW2 connection shown in Figure 3 and handle if continue to press release-push.
Fig. 3 is used to the process flow diagram that moves when the 2nd release-push is connected is described, under the 1st release-push SW1 on-state, connects input if camera control part 1 detects the 2nd release-push SW2, then starts the 2nd release-push and connects processing.The 2nd release-push is connected and is handled at the beginning, and camera control part 1 judgement earlier forbids whether release information is set (step S31).To forbid discharging information set occasion ("Yes" of step S31) by Status Flag etc., and not carry out the 2nd release-push and connect and handle the action of promptly not photographing, end process.
At step S31, judge and do not forbid release information by settings such as Status Flags, permission photography occasion ("No" of step S31), camera control part 1 is opened the time according to the shutter that the automatic exposure calculation process by the step S5 of Fig. 2 gets, carry out fast gate control and make the shutter on-off action, when using flashlamp, also the flash time and the flash of light moment that gets according to the automatic exposure calculation process, carry out flashlamp flash of light control (step S32).
Then, judge whether non-close-range photography pattern, if not close-range photography pattern ("Yes" of step S33) at step S33, then step S34 make the photographic lens lens barrel get back to decide position of readiness, carry out film at step S35 and send action to, part of feeding film, end process.If be judged as close-range photography pattern occasion ("No" of step S33) at step S33, because the photographic lens stationkeeping is in the approximated position of common photography, so do not carry out step S34 make the photographic lens lens barrel get back to decide the shift action of position of readiness, the film that directly enters step S35 is sent action to.
Photograph mode switch SW 3 is to be used for the user to pass through the switch that operation arbitrarily selects to set pre-prepd photograph mode according to the photography occasion, when operating this photograph mode switch SW 3, starts photograph mode switch connection processing shown in Figure 4.
Normal mode is the automatic flash mode of low-light level that carries out multizone AF control and the multizone AF that flashlamp glistens automatically when low-light level, and under this state, display 8 becomes common photograph mode show state shown in Figure 7.Under this state, if by shot pattern, camera control part 1 is judged the last time of normal mode (step S41) whether, if be normal mode last time, then be set at single AF pattern, single ranging region to suitable selection carries out AF control, and display 8 becomes single AF pattern show state (step S42) shown in Figure 8, and end process is got back to holding state.
If again by shot mode switch SW3, at step S41, camera control part 1 judges that be not normal mode last time, so enter step S43, judges the last time of single AF pattern whether.If be single AF pattern last time, then be set at the distant view pattern, the amount of feeding of automatic setting photographic lens lens barrel is so that focus on the subject of unit's limit distant positions, control display 8 shows distant view pattern show state shown in Figure 9 (step S44), and end process is got back to holding state.
If again by shot mode switch SW3, at step S41, camera control part 1 judges that be not normal mode last time, enters step S43, judges that be not single AF pattern last time, so, enter step S45, judge the last time of longshot pattern whether.If be the longshot pattern last time, then be set at the close-range photography pattern, control display 8 shows close-range photography pattern show state shown in Figure 10 (step S46), at step S47 f-number is set at little value, for example F.32, at step S48 the photographic lens lens barrel being moved to can be near camera positions, 35cm for example, end process.
If again by shot mode switch SW3, at step S41, camera control part 1 judges that be not normal mode last time, enter step S43, judge that be not single AF pattern last time, enter step S45, judge that be not longshot pattern but close-range photography pattern last time, so, be set at normal mode, the low-light level of the getting back to multizone AF control of glistening automatically, control display 8 is got back to show state shown in Figure 7 (step S49), S50 resets aperture in step, makes the photographic lens lens barrel get back to position of readiness at step S51.
When camera control part 1 was in holding state, temporal mode switch SW 4, selection of time switch SW 5 and the time configuration switch SW6 relevant with the clock timing action can accept the input switch operation, and the calendar/clock in the energy change setting display 8 shows.
By each running time mode switch SW4, carry out the change of display mode shown in Figure 5 at camera control part 1 and handle.If running time mode switch SW4, camera control part 1 judges last time, whether the time showing pattern was " date " pattern (step S61) of representing with the date order, " if date " pattern ("Yes" of step S61), be " month day year " pattern of representing with the month day year order with the time showing mode altering then, get back to holding state at step S62.
During running time mode switch SW4, judge that at step S61 last time, the time showing pattern was not " date " pattern ("No" of step S61), then enter step S63, camera control part 1 is judged " month day year " pattern whether represented with the month day year order last time, " if month day year " pattern ("Yes" of step S63), be " day month year " pattern of representing with the day month year order with the time showing mode altering then, get back to holding state at step S64.
During running time mode switch SW4, judge that at step S61 last time, the time showing pattern was not " date " pattern, and judge that at step S63 last time, the time showing pattern was not " month day year " pattern, camera control part 1 is judged " day month year " pattern (step S65) whether represented with the day month year order last time, " if day month year " pattern ("Yes" of step S65), be " day time-division " pattern of representing in proper order with time-division day with the time showing mode altering then, get back to holding state at step S66.
During running time mode switch SW4, judge that at step S61 last time, the time showing pattern was not " date " pattern, judge that at step S63 last time, the time showing pattern was not " month day year " pattern, judge that at step S65 last time, the time showing pattern was not " day month year " pattern, camera control part 1 with time showing mode altering " date " pattern for representing with the date order, is got back to holding state at step S67.
That is to say, whenever when 4 input operations of temporal mode switch SW, the time showing pattern can with show " date " → show " month day year " → show " day month year " → show " day time-division " → show " date " → ... reiteration switches.
Selection of time switch SW 5 and time configuration switch SW6 are the switches that is used for revising the year, month, day, hour, min that calendar/clock shows.By running time selector switch SW5, the project among the year, month, day, hour, min of selecting to wish to revise.Promptly by running time selector switch SW5, amend item with year → moon → day → time → minute order selected one by one, selected project is represented to glimmer.Under flicker expression state, time setting switch SW6 becomes effectively, and whenever by time setting switch SW6 input operation the time, the value of flicker expression project increases by 1.
Like this, but the camera with short-distance photographic function that the present invention relates to can select to set photograph mode by the operation of setting pattern, comprise common photograph mode and close-range photography pattern as photograph mode, so-called close-range photography pattern is but that lens position is moved to the close-range photography stationkeeping, f-number is set at littler than above-mentioned common photograph mode, deepen the depth of field, make close-range photography become possibility, obtain the ranging data of subject by distance measuring equipment, by the distance operation device above-mentioned ranging data is transformed into range data, relatively this range data and depth of view information if above-mentioned range data is in outside the depth of field, are then forbidden the photography action, utilize the AF function, it is photographic only to make subject be in the interior occasion of the depth of field, and subject is in the outer occasion of the depth of field, forbids the photography action.
That is to say, can effectively prevent to photograph, can not take the focusing fuzzy photo being in the outer subject of the depth of field.In addition, careless with pattern photography occasion closely, or forget the setting occasion, to plan common camera style when photographing, also become and forbid photography, can prevent maloperation.Therefore, can carry out suitable focusing photography, can prevent under not having focusing state the subject the depth of field outside photographed or maloperation such as photography because of carelessness under improper photograph mode state.
In addition, warn demonstration, under release-push half pressed state, can confirm to forbid photography state by the grade of lighting/glimmer of light-emitting component.Especially, if forbid photography state, under release-push half pressed state, can correctly with the naked eye confirm by the demonstration warning of lighting/glimmer of light-emitting component.Range finding failure occasion is not forbidden photography though give a warning, and the subject that can not find range is positioned at depth of field occasion and also can photographs.This occasion shows the range finding failure by warning, also can discern in advance with for example visual inspection.In addition, in the close-range photography pattern, be positioned at the depth of field but belong to common camera coverage occasion,, therefore, can be made as and forbid photography preferably with common camera style photography.Since during close-range photography during with photography usually the maximum amount of movement of photographic lens lens barrel identical, the lens barrel design easily, the cost reduction.
In close-range photography, luminous by making flashlamp usually, avoid the trouble with flash mode combination, be easy to photograph.
Certainly, the present invention is not limited to the foregoing description, can do all changes in the technology of the present invention thought range, and they all belong to protection scope of the present invention.
Claims (9)
1. camera with short-distance photographic function, can select to set photograph mode by the operation of setting pattern, photograph mode comprises common photograph mode and close-range photography pattern, the close-range photography pattern is but that lens position is moved to the close-range photography stationkeeping, f-number is set at littler than above-mentioned common photograph mode, deepen the depth of field, make close-range photography become possibility; It is characterized in that, be provided with:
Distance measuring equipment, be used to obtain with subject apart from corresponding ranging data;
The distance operation device will be transformed into range data by the ranging data of above-mentioned distance measuring equipment output;
Forbid the movement device of photographing, relatively the range data that is got by above-mentioned distance operation device calculating and the depth of field under the close-range photography pattern if above-mentioned range data is in outside the depth of field, are forbidden the photography action.
2. according to the camera described in the claim 1, it is characterized in that, further comprise with short-distance photographic function:
But the releasing means of two-period form operation is according to practicable the 1st section the 1st releasing operation of the operational ton of release-push and the 2nd section the 2nd releasing operation;
Control device, the 1st releasing operation by above-mentioned releasing means, control is carried out the range finding action by above-mentioned distance measuring equipment, the 2nd releasing operation by above-mentioned releasing means, control enters the photography action, simultaneously, and under above-mentioned the 1st releasing operation state, above-mentioned range data is in the outer occasion of the depth of field, and control is carried out institute and decide to warn demonstration.
3. according to the camera described in the claim 2, it is characterized in that above-mentioned control device comprises: when above-mentioned range data is in outside the depth of field, carry out the device shown of warning surely by the flicker demonstration of luminous displaing part with short-distance photographic function.
4. according to the camera described in the claim 3, it is characterized in that above-mentioned control device is included in by above-mentioned distance measuring equipment can not normally be found range occasion as a result no matter how the subject distance all allows the device of photographing with short-distance photographic function.
5. according to the camera described in claim 3 or 4, it is characterized in that above-mentioned control device is included in by the above-mentioned distance measuring equipment occasion of can not normally being found range as a result and carries out above-mentioned warning device shown with short-distance photographic function.
6. according to the camera described in claim 3 or 4 with short-distance photographic function, it is characterized in that, above-mentioned control device is included in by the above-mentioned distance measuring equipment occasion of can not normally being found range as a result and carries out above-mentioned warning device shown, and it is carried out flicker cycle that above-mentioned warning shows and above-mentioned range data and is in the outer occasion of the depth of field to carry out the flicker cycle of warning demonstration different.
7. according to the camera described in the claim 5, it is characterized in that its flicker cycle of carrying out above-mentioned warning demonstration is different with the flicker cycle that above-mentioned range data is in the outer occasion implementation of depth of field warning demonstration with short-distance photographic function.8. according to claim 1-4, any described camera in 7 with short-distance photographic function, it is characterized in that above-mentioned control device comprises regards the shortest photo distance in the common photograph mode as allow the remote side of the depth of field in the close-range photography pattern device.
9. according to claim 1-4, any described camera in 7 with short-distance photographic function, it is characterized in that, but further be provided with use with photograph mode usually in the equal lens position of the shortest photo distance as the device of the lens position of close-range photography.
10. according to claim 1-4, any described camera in 7 with short-distance photographic function, it is characterized in that, further be provided with and make flashlamp often luminous and shutter speed is set at the device of set time in above-mentioned close-range photography pattern, the said fixing time shutter speed minimum with making the hand wobble influence is corresponding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP098247/1999 | 1999-04-05 | ||
| JP09824799A JP3761740B2 (en) | 1999-04-05 | 1999-04-05 | camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1269523A CN1269523A (en) | 2000-10-11 |
| CN1196966C true CN1196966C (en) | 2005-04-13 |
Family
ID=14214637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001046004A Expired - Fee Related CN1196966C (en) | 1999-04-05 | 2000-04-03 | Camera with short-distance photographic function |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3761740B2 (en) |
| CN (1) | CN1196966C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100357822C (en) * | 2002-05-31 | 2007-12-26 | 金宝电子工业股份有限公司 | Automatic focusing method cooperated with depth of field |
| JP4235474B2 (en) * | 2003-03-20 | 2009-03-11 | キヤノン株式会社 | Imaging device |
| US7598997B2 (en) * | 2004-01-14 | 2009-10-06 | Ricoh Company, Ltd. | Imaging apparatus and focus control method based on a number of automatic focus scan stages, and recording medium storing a program for executing such a method |
| CN100447656C (en) | 2004-01-15 | 2008-12-31 | 株式会社理光 | Imaging apparatus and imaging method |
| JP4793179B2 (en) | 2005-11-14 | 2011-10-12 | オムロン株式会社 | Authentication device and portable terminal |
| CN100440937C (en) * | 2005-11-14 | 2008-12-03 | 欧姆龙株式会社 | Authentication apparatus and method |
| CN101305594B (en) * | 2005-12-07 | 2011-12-14 | 松下电器产业株式会社 | Camera system, camera main-body, interchangeable lens unit, and imaging method |
| WO2007139214A1 (en) | 2006-05-26 | 2007-12-06 | Ricoh Company, Ltd. | Lens driving-control device and imaging apparatus including the lens driving-control device |
| US20090262207A1 (en) * | 2006-06-20 | 2009-10-22 | Naoto Yumiki | Camera system |
| CN102761701A (en) * | 2011-04-28 | 2012-10-31 | 毕振玲 | Novel photographing control method |
| JP6684168B2 (en) * | 2016-06-28 | 2020-04-22 | キヤノン株式会社 | Image processing apparatus and image processing method |
| JP2018084772A (en) * | 2016-11-25 | 2018-05-31 | オリンパス株式会社 | Imaging device and control method of the same |
-
1999
- 1999-04-05 JP JP09824799A patent/JP3761740B2/en not_active Expired - Fee Related
-
2000
- 2000-04-03 CN CNB001046004A patent/CN1196966C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1269523A (en) | 2000-10-11 |
| JP3761740B2 (en) | 2006-03-29 |
| JP2000292680A (en) | 2000-10-20 |
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