JPH0743792A - Camera - Google Patents

Abstract

PURPOSE:To automatically perform photographing where the occurrence of a red-eye phenomenon is reduced when a human being is photographed and photographing where a release time lag is shortened when a moving subject is photographed, respectively. CONSTITUTION:This camera is provided with a control means 21 automatically presetting a red-eye moderating mode to be on when a magnification fixed mode or a daylight synchro photographing mode is set by a mode setting means 6, so that the red-eye moderating mode is automatically preset to be on when a mode dedicated to photographing a human being is set. Then, it is provided with the control means 21 automatically presetting the red-eye moderating mode to be off when a servo AF mode is set by the mode setting means, so that the red-eye moderating mode is automatically preset to be off when a mode dedicated to photographing a moving subject is set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a camera having a red-eye reduction mode for reducing the frequency of occurrence of red-eye phenomenon during flash photography.

[0002]

2. Description of the Related Art In recent cameras, particularly lens shutter cameras, the shutter is opened (strobe irradiation) in order to reduce the frequency of occurrence of the red-eye phenomenon during flash photography.
Before using the lamp or strobe toward the subject,
Many have a so-called red-eye relaxation mode in which light is emitted for a certain period of time (usually about 1 second). This red-eye reduction mode has the effect of reducing the frequency of occurrence of the red-eye phenomenon, but on the other hand, the release time lag corresponds to the time to illuminate the light before opening the shutter. Most of them can be switched.

In addition to this, there is also a camera having a shooting mode dedicated to a specific situation such as a portrait mode or a sports mode, in addition to the normal (normal) shooting mode.

Here, the portrait mode is a mode intended for photographing the upper half of a person, and automatically performs zooming so that the photographing magnification on the film becomes constant according to the distance measurement data (subject distance information). This refers to the constant magnification mode or flash daylight synchronized shooting mode.Sport mode is a mode intended for shooting moving subjects, in which distance measurement is repeated while the release button is pressed halfway. This is a so-called servo AF mode in which the lens follows the movement of the subject.

[0005]

However, in the conventional camera, the setting / cancellation of the red-eye reduction mode described above and the shooting modes such as the portrait mode and the sports mode are independent in sequence. Therefore, when the photographing mode is switched to the portrait mode while the red-eye reduction mode is OFF (released), red-eye is likely to appear even though the person is photographed. Also, if the shooting mode is switched to the sports mode while the red-eye reduction mode is still ON (set), the red-eye lamp (or strobe) will be illuminated for a certain period of time even if it is attempted to release the shutter chance. The shutter chance is missed, and the meaning of servo AF is lost.

(Object of the Invention) An object of the present invention is to automatically perform shooting with reduced occurrence of the red-eye phenomenon when shooting a person, and shooting with shortened release time lag when shooting instantaneously. It is to provide a camera that can.

[0007]

The present invention is provided with a control means for driving a red-eye reduction means when photographing for the purpose of photographing a person, and a constant magnification mode is set by a mode setting means. If it is, the red-eye reduction mode is automatically turned on.
A control means for presetting to N is provided, and when the daytime synchronized shooting mode is set by the mode setting means, a control means for automatically presetting the red-eye alleviation mode to ON is provided so that the person-only mode is set. If it is set, the red-eye reduction mode is automatically preset to ON.

Further, when shooting is performed in a shooting mode in which shooting is performed instantaneously, a control means for driving the red-eye reduction means is provided, and when the servo AF mode is set by the mode setting means, red-eye reduction is performed. Mode is automatically turned off
A control means for presetting is provided so that the red-eye reduction mode is automatically preset to OFF when the shooting mode for instantaneous shooting is set.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

1 (a) and 1 (b) are views showing a front surface and a back surface of a camera according to an embodiment of the present invention.

In FIGS. 1 (a) and 1 (b), 1 is a stroboscopic light emitting portion, 2 is a release button, 3 is a photographing lens barrel holding a zoom lens, and 4 is TELE for zooming to the TELE (telephoto) side. Switch 5 is WIDE
WIDE switch for zooming to the (wide-angle) side, 6 is a dial type shooting mode setting switch for switching ON / OFF of the main switch and shooting modes such as portrait mode and sports mode, and 7 is a shooting mode An LCD display panel for confirming the state of the film, and a red-eye reduction mode setting switch 8 for arbitrarily setting whether or not to turn on the red-eye reduction lamp before the exposure of the film is started.

Shooting mode setting switch 6 in this embodiment
The shooting modes that can be set with are the main switch off (MAIN-OFF) mode that disables the camera, the automatic flash (AUTO) mode in which the flash fires automatically when the metering result is low, and the night view after the flash fires. Slow synchronization (SLOW-S) mode that holds the shutter open state to expose a low-brightness subject such as, macro (MACRO) mode that performs close-up photography, sports (SPORTS) mode that captures a moving subject, There are six types of portrait modes for photographing a person, and one of them is selectively set by the dial position of the photographing mode setting switch 6.

The red-eye reduction mode setting switch 8 is
Red-eye reduction lamp 1 immediately before opening the shutter under strobe lighting conditions
Each time the button is pressed, two types of red eye ON mode in which 2 is turned on and red eye OFF mode in which the red eye alleviation lamp 12 is not turned on regardless of the conditions such as strobe light emission are cycled.

FIG. 2 is a sectional view showing the structure of the strobe light emitting section 1.

In FIG. 2, 11 is a xenon tube, 12 is a red-eye reducing lamp, 13 is a reflecting shade for reflecting the emitted light of the xenon tube 11 and the red-eye reducing lamp 12 and directing it toward the subject, and 14 is the reflecting shade. Xenon tube 11 and red-eye reduction lamp 12 pointed at subject by 13
It is a Fresnel lens for condensing the emitted light of the.

FIG. 3 is a block diagram showing the schematic arrangement of a camera according to the first embodiment of the present invention.
The same parts as are denoted by the same reference numerals.

In FIG. 3, 21 is a sequence controller for controlling the sequence of the entire camera, 22 is a photometric circuit for measuring the brightness of the object, 23 is a distance measuring circuit for measuring the distance to the object, 25 is light emission control of the xenon tube 11, etc. A strobe drive circuit for performing the operation, 27 is a red-eye lamp drive circuit for lighting the red-eye reduction lamp 12, 28 is a shutter, 29
Is a shutter drive circuit for driving the shutter 28, 30
Is a zoom motor for zooming, 31 is a zoom motor drive circuit for driving the zoom motor 30, 32 is a feeding motor for feeding a film, 33
Is a feed motor drive circuit for driving the feed motor 32.

Reference numeral 41 denotes a switch (SW1) which is turned on by the first stroke (half-press) of the release button, and the shooting preparation operation (photometry, distance measurement operation) is performed by turning on the switch. Reference numeral 42 denotes a release switch (SW2) which is turned on by the second stroke of the release button, and the photographing operation (exposure operation) is performed by turning on the switch. 4 is the above-mentioned TELE switch which is a push button, 5 is the above-mentioned WIDE switch which is a push button, 6
Is a photographing mode setting switch described above which is composed of a 3-bit code pattern, and 8 is a red-eye reduction mode setting switch which is a push button.

Next, the operation sequence of the camera when the portrait mode is set will be described with reference to the flowchart of FIG.

Initial state (shooting mode setting switch 6 is M
At a position other than AIN-OFF), it is first detected whether or not the state of the photographing mode setting switch 6 has changed (the dial operation has been performed) (step 10).
1) If it has not changed, the process proceeds to step 105. On the other hand, if it has changed, the shooting mode is switched to the setting state (step 102), and the red-eye reduction mode is turned ON only when the mode after switching is the portrait mode. Preset to (step 103 → 104), step 105
Go to.

In step 105, it is detected whether or not the red-eye mitigation mode setting switch 8 is pressed. If not, the process proceeds to step 107. If it is, the process proceeds to step 106 to proceed to the red-eye mitigation mode. (If it is ON, it is OFF, if it is OFF, it is ON
To step 107 and proceed to step 107.

In step 107, the switch SW
ON / OFF of 1 is detected, and if it is OFF, step 1
Returning to 01, the same operation is repeated. If ON, the following release operation (step 108 to step 11)
5) Enter.

In the release operation, first, the distance measuring circuit 22 and the photometric circuit 23 are driven to obtain the distance measuring data and the light measuring data, and the focus drive and the photographing magnification on the film become constant based on the distance measuring data. Zooming is automatically performed (steps 108 and 109). Then
If the strobe light emission and the red-eye reduction mode are ON according to the above photometry result, the red-eye lamp 12 is turned on (step 110 → 111) via the red-eye lamp drive circuit 27, and 1 sec.
Wait and proceed to step 113. If the flash emission is unnecessary or the red-eye reduction mode is OFF, step 11
The process proceeds from 0 to step 113. In step 113, the release switch SW2 is checked, and when it is turned on, the shutter is opened and closed (step 114). At this time, if strobe light emission is required, at the same time, the strobe drive circuit 25
The xenon tube 11 is driven via the to emit strobe light. Then, feed the film by one frame (Step 11
5) Finish.

Next, the operation sequence of the camera when the sport mode is set will be described with reference to the flowchart of FIG.

Initial state (shooting mode setting switch 6 is M
At a position other than AIN-OFF), it is first detected whether or not the state of the photographing mode setting switch 6 has changed (the dial operation has been performed) (step 20).
1) If it has not changed, the process proceeds to step 205. If it has changed, the shooting mode is switched to the setting state (step 202), and the red-eye reduction mode is turned off only when the mode after switching is the sports mode. Preset (step 203 → 204) and proceed to step 205.

In step 205, it is detected whether or not the red-eye mitigation mode setting switch 8 is pressed, and if it is not depressed, the routine directly proceeds to step 208, while if it is depressed, the mode is switched to the red-eye mitigation mode (step 2).
06 → 207), but if the shooting mode is the sports mode here, the flow proceeds from step 206 to step 208 without switching the red-eye reduction mode. This is for fixing the red-eye reduction mode to OFF for the purpose of shooting in the sports mode.

In step 208, the switch SW
ON / OFF of 1 is detected, and if it is OFF, step 2
Returning to 01, the same operation is repeated. If it is ON, the following release operation (steps 209 to 21)
6) Enter.

In the release operation, first, the distance measuring circuit 22 and the light measuring circuit 23 are driven to obtain the distance measuring data and the light measuring data, and the focus drive and the photographing magnification on the film become constant based on the distance measuring data. Zooming is automatically performed (steps 209 and 210). Then
If the strobe emission and the red-eye reduction mode are ON according to the above photometry result, the red-eye lamp 12 is turned ON (step 211 → 212) via the red-eye lamp drive circuit 27 for 1 sec.
Wait and proceed to step 213. If the flash emission is unnecessary or the red-eye reduction mode is OFF, step 21
From 1 to step 214. In step 214, the release switch SW2 is checked, and when it is turned on, the shutter is opened and closed (step 215). At this time, if strobe light emission is required, at the same time, the strobe drive circuit 25
The xenon tube 11 is driven via the to emit strobe light. Then, feed the film by one frame (Step 21
6) Finish.

According to the present embodiment, when the photographing mode is set to the portrait mode, the sequence is configured so that the red-eye reduction mode is automatically preset to ON. It is possible to shoot with the appropriate red-eye effect, and when the shooting mode is set to sports mode, the sequence is configured so that the red-eye reduction mode is automatically set to OFF. You can shoot with less release time lag, which is suitable for shooting-only mode.

In this embodiment, the photographing mode (portrait mode) for photographing a person is as follows.
Although it is described that the shooting is performed by zooming so that the shooting magnification on the film becomes constant based on the distance measurement data, the shooting mode for shooting a person is not limited to this. For example, it is conceivable to perform shooting under other conditions such as keeping the release magnification constant regardless of the subject distance or automatically setting the depth of field shallow.

Also, in the present embodiment, the shooting mode using the servo AF is described as the shooting mode for instantaneous shooting, but the shooting mode for instantaneous shooting is not limited to this. For example, it is conceivable to perform shooting under other conditions such as shooting at a fast shutter speed of a predetermined value or more.

[0032]

As described above, according to the present invention,
When photographing for the purpose of photographing a person, a control means for driving the red-eye mitigation means is provided, and if the constant magnification mode is set by the mode setting means, the red-eye mitigation mode is automatically turned on. A control means for presetting is provided, and when the daytime synchronized shooting mode is set by the mode setting means, a control means for automatically presetting the red-eye reduction mode to ON is provided, and a dedicated mode for portrait shooting is set. If so, the red-eye reduction mode is automatically preset to ON.

Further, when shooting is performed in a shooting mode in which shooting is performed instantaneously, a control means for driving the red-eye reducing means is provided, and when the servo AF mode is set by the mode setting means, red-eye reducing is performed. Mode is automatically turned off
A control means for presetting is provided so that the red-eye reduction mode is automatically preset to OFF when the shooting mode for instantaneous shooting is set.

Therefore, it is possible to automatically perform shooting with reduced occurrence of the red-eye phenomenon when shooting a person, and shooting with a reduced release time lag when shooting is performed instantaneously.

[Brief description of drawings]

FIG. 1 is a diagram showing a front surface and a back surface of a camera according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a strobe light emitting unit in FIG.

FIG. 3 is a block diagram showing a schematic configuration of a camera of one embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the camera when the portrait mode is set in the embodiment of the present invention.

FIG. 5 is a flowchart showing the operation of the camera when the sports mode is set in the embodiment of the present invention.

[Explanation of symbols]

 6 Shooting mode setting switch 8 Red-eye reduction mode setting switch 11 Xenon tube 12 Red-eye reduction lamp 21 Sequence controller 25 Strobe drive circuit 27 Red-eye lamp drive circuit

Claims (6)

[Claims] 1. A red-eye reducing means for reducing a frequency of occurrence of a red-eye phenomenon during flash photography, a setting means for setting a photographing mode for photographing a person, and a person photographing in response to the setting means. And a control unit that drives the red-eye reducing unit when shooting is performed. 2. A red-eye reduction mode for reducing the frequency of occurrence of the red-eye phenomenon during stroboscopic photography, and a constant magnification for automatically zooming according to the distance measurement data so that the photographing magnification on the film becomes constant for the purpose of portrait photography. In a camera provided with a mode setting means for setting at least one of the modes and a red-eye reducing means used in the red-eye reducing mode, when the constant magnification mode is set by the mode setting means, Relax mode automatically turned on
A camera provided with control means for presetting to N. 3. A mode setting means for setting at least one of a red-eye reduction mode for reducing the frequency of occurrence of red-eye phenomenon during flash photography and a daytime synchronized photography mode for portrait photography, and the red-eye reduction mode. In a camera provided with a red-eye reduction means used at times, when the daytime synchronized photographing mode is set by the mode setting means, a control means for automatically presetting the red-eye reduction mode to ON is provided. Characteristic camera. 4. Red-eye reducing means for reducing the frequency of occurrence of red-eye phenomenon during flash photography, setting means for setting a photography mode for instant photography, and instant photography in response to the setting means. And a control unit that drives the red-eye reduction unit when shooting is performed in the shooting mode. 5. A servo for repeatedly performing a distance measurement operation while a shooting preparation operation start instruction is issued for the purpose of shooting a moving subject by a red-eye reduction mode for reducing the frequency of occurrence of the red-eye phenomenon during flash shooting. In a camera provided with a mode setting means for setting at least one of the AF modes and a red-eye reducing means used in the red-eye reducing mode, when the servo AF mode is set by the mode setting means, A camera provided with a control means for automatically presetting the red-eye reduction mode to OFF. 6. A first mode setting means for setting a red-eye reduction mode for reducing the frequency of occurrence of red-eye phenomenon during flash photography, and an instruction to start a shooting preparation operation for the purpose of shooting a moving subject. The second for setting the servo AF mode in which the distance measurement operation is repeated while being performed.
In the camera provided with the mode setting means and the red-eye reduction means used in the red-eye reduction mode, when the servo AF mode is set by the second mode setting means, the red-eye reduction mode is automatically turned off. And a prohibiting means for prohibiting the setting of the red-eye reduction mode to ON by the first mode setting means.