KR100461463B1 - Shooting end warning device and method - Google Patents

Abstract

According to the present invention, a photographing means for outputting an electrical signal to perform a photographing operation, a film information sensing means for sensing the number of recordable films of a film to be used and outputting a corresponding electric signal, and information on the number of set films is stored. The number of recordable films received and the inputted signal output from the film information sensing means is changed according to the operation signal of the photographing means, and compared with the number of set films read from the storing means. A control means for outputting a control signal corresponding to whether or not to warn the end of shooting based on the result; and a shooting end warning means for warning the end of shooting by driving according to the control signal output from the control means. To prevent the noise of the rewinding motor And due to no film it can eliminate the stress generated by recognizing that taking the next shooting operation prevents the recording, there is an effect that the reliability of the camera is improved.

Description

Shooting end warning device and method

The present invention relates to an end-of-shooting warning device and a method thereof, and more specifically, to a user, when the number of recordable films is less than or equal to the set number of films, the user ends the shooting end warning that there are few recordable films left. It relates to a photographing warning device and a method thereof.

In general, the automatic camera automatically rewinds the finished film to rewind the film to the film barrel, so that the user can easily remove it from the camera. In addition, in the replenishment or semi-automatic or low-end camera, the rewinding is performed by manually rewinding the photographed film or by manipulating a winding switch.

As described above, in the process of rewinding the film by the camera, considerable noise is generated by the operation of the motor which performs the rewind. Therefore, if the noise of the motor that executes the rewinding occurs in a place where quietness is required, that is, in a situation where a user or people around him are not recognized in advance in a meeting place, a worship time, a concert, or an information session, the user or the people around him may be quite embarrassed Will make

Therefore, the camera user had to operate the forced rewind stop switch to stop the noise of the rewind motor in perplexity reduction.

Thus, conventionally, there was a camera that allows the film to be taken when the film is completely wound so that the film is rewound when the film is finally taken.

However, the user using such a camera had to wait for a considerable time to wind up after mounting the film, so he had to bear the inconvenience of not being able to perform photography immediately. In addition, the camera as described above has a problem that the film is mounted in a place where the noise is not a problem because the noise occurs during the initial winding.

In addition, conventionally, when a user needs to take a large amount of pictures, when the user takes a picture without checking the remaining film and wants to take a picture at an important time, the shooting ends and misses a desired time or scene.

Thus, although the user often looks at the camera information display panel to check the number of films, the display device can display the display device when the number of shots is displayed in the high brightness area, but the display device is photographed when the lighting is low or low brightness. Since the number of copies cannot be accurately identified, there is a problem that a separate light source or other lighting means must be used.

Accordingly, the present invention is to solve the above-mentioned conventional problems, and to provide a camera end warning device and a method for allowing a camera user to recognize that there is not much film that can be automatically taken by the user.

The present invention as a means for solving the above technical problem

Photographing means for outputting an electrical signal to perform a photographing operation;

Film information sensing means for sensing the number of recordable films of the film to be used and outputting a corresponding electric signal;

Storage means for storing information on the number of sheets of the set film;

The signal output from the film information sensing means is input, and the number of recordable films inputted is changed according to the operation signal of the photographing means, and compared with the set number of films read from the storage means, and the photographing end is finished by the comparison result. Control means for outputting a control signal corresponding to whether or not to warn;

It includes a shooting end warning means for driving in accordance with the control signal output from the control means to warn the end of shooting.

The present invention as another means for solving the above technical problem is

Photographing means for outputting an electrical signal to perform a photographing operation;

Film information sensing means for sensing the number of recordable films and the number of photographed films of the film used and outputting a corresponding electric signal;

Storage means for storing information on the number of sheets of the set film;

The number of mounted films is determined as a signal output from the film information sensing means, and the first film that can be photographed is photographed according to the determined number of films. The set number of films read from the storage means is compared with the number of mounted films. A control means for outputting a control signal corresponding to whether or not to carry out a shooting end warning, and changing information on the number of films determined according to film transfer according to shooting;

Film conveying means for conveying the film to a corresponding position in accordance with a drive signal output from the control means;

It includes a shooting end warning means for driving in accordance with the control signal output from the control means to warn the end of shooting.

The present invention as another means for solving the above technical problem is

Sensing the number of recordable films from a code formed on the film cartridge;

Reducing the number of recordable films by 1 as the film is conveyed by photographing by an operation signal of a photographing means for photographing to be performed;

Comparing the number of recordable films and the set number of films reduced by one;

If the number of filmable shots in the comparison is less than or equal to the set number of films, warning of the end of shooting.

As another means for solving the above technical problem

Reading the number of recordable films or the number of shots from the disc formed in the film cartridge;

Transferring the film so that the first photographable film can be photographed using the photographed film number or photographable film number information;

Comparing the number of recordable films and the number of preset stored films;

Warning the end of photographing when the number of recordable films in the comparison is less than or equal to the set number of films;

Determining whether the film transfer is performed according to the photographing when the number of photographic films that can be photographed in the comparison is greater than the set number of films;

If the film has been transferred, the step of reducing the number of recordable film by one, and the step of allowing the operation to proceed to the comparison step.

By the above-described configuration, a person having ordinary skill in the art to which the present invention pertains will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a device for photographing end warning according to a first embodiment of the present invention.

As shown in FIG. 1, the photographing end warning device according to the first embodiment of the present invention

Film detection switch (S1) for outputting an electrical signal by detecting film installation

A back cover switch S2 for outputting a corresponding electric signal according to a closed or open state of the back cover;

A release switch S3 for outputting a corresponding electrical signal to start a photographing operation;

A storage unit 1 which stores a set number of films to be compared with the number of recordable films;

A film state detection unit 2 which detects the total number of films that can be photographed and outputs a corresponding signal;

When the operation signal of the back cover switch S2 is received after the operation signal of the film detection switch S1 is input, a signal is received from the film state detection unit 2 to confirm the number of film shots, and the release is performed. A control unit (3) for calculating the number of filmable shots according to the operation signal of the switch (S3), comparing the set number of films read from the storage unit (1), and outputting a control signal corresponding to the comparison value;

And a warning unit 4 which drives in accordance with a control signal output from the control unit 3 to generate a vibration or warning sound or displays a warning display in letters.

2 is a block diagram of a device for photographing end warning of an APS camera according to a second embodiment of the present invention.

As shown in FIG. 2, in the second embodiment of the present invention, the shooting end warning device of the APS camera

A chamber switch S4 whose operation state varies depending on whether the chamber door is opened or closed;

A film recognition switch S5 for outputting a corresponding electric signal by varying an operation depending on whether the film is mounted;

A release switch S6 for outputting an electrical signal to start a photographing operation;

A storage unit 10 for storing the set number of films to be compared with the number of recordable films;

A film information sensing unit 20 for sensing film photographing information, that is, information about the number of photographing films and the number of photographable films, from a disk formed in a film cartridge;

The control signal is output so that the film is wound to a film position corresponding to the signal output from the film state detecting unit 20 according to the input of the operation signal of the chamber switch S4 and the film recognition switch S5, and the An operation control unit 30 for reading the set number of films from the storage unit 10 and outputting a control signal corresponding to the comparison value in comparison with the number of recordable films at each shooting time;

A film transfer unit 40 driving the film according to a control signal output from the operation control unit 30 to transfer the film;

It includes a warning unit 50 for generating a vibration or a warning sound in accordance with the control signal output from the operation control unit 30 or a warning display in text.

3 is an operation flowchart of the shooting end warning device according to the first embodiment of the present invention.

As shown in FIG. 3, the photographing end warning device according to the first embodiment of the present invention

Determining the film mounting (S10);

Determining the closing of the back cover (S20);

Determining the number of film shots (S30);

Detecting an operation signal of the release switch S1 (S40);

Determining whether a film transfer operation is performed as the photographing operation is performed (S50);

Subtracting 1 from the number of recordable films (S60);

Reading a set number of sheets from the storage unit (S70);

Comparing the number of recordable films and the set number of films obtained by subtracting 1 (S80);

And generating a warning sound when the number of recordable films obtained by subtracting 1 from the comparison is equal to or smaller than the set number of films (S90).

4 is an operation flowchart of the shooting end warning device of the APS camera according to the second embodiment of the present invention.

As shown in the accompanying FIG. 4, the photographing end warning device of the APS camera according to the second embodiment of the present invention

Detecting the film mounting (S100);

Determining the number of film shots and the number of film shots that can be taken (S200);

Transferring the film to a film position corresponding to the film state (S300);

Reading the set number of sheets from the storage unit 10 (S400);

Comparing the number of recordable films with the set film (S500);

Determining whether the release switch is operated when the number of filmable shots in the comparison is greater than the set number of films (S600);

Determining whether a film transfer operation is performed as the photographing operation is performed (S700);

Subtracting 1 from the number of recordable films to proceed to the comparison step (S800);

In the comparison, when the number of recordable films is equal to or smaller than the set number of films, a step of warning of the end of the shooting is made.

1 and 4, a photographing end warning device and a method thereof according to a first embodiment of the present invention will be described.

The shooting end warning device and method thereof according to the first embodiment of the present invention are a device and method related to a general camera.

The user opens the backcover to mount the new film on the camera and then mounts the film in the film chamber.

When the film is mounted in the film chamber, the film detection switch S1 located in the film chamber detects the mounted film and outputs a corresponding electrical signal to the controller 3.

The controller 3 receives the signal of the film detection switch S1 and determines that the film is mounted.

When the user closes the back cover after attaching the film to the camera, the back cover switch S2 operates to output a corresponding electrical signal to the controller 3.

The control unit 3 determines a signal input from the film state detection unit 2 to confirm the state of the mounted film, that is, the total number of recordable films, according to the input of the operation signal of the back cover switch S2. (S20, S30)

If the total number of recordable films cannot be checked by the camera itself, the user inserts a new film into the camera and inputs the total number of recordable films into the camera so that the camera can obtain information about the total number of recordable films. Be aware of this.

The control unit 3 determines whether the number of sheets of film mounted as a signal output from the film state detecting unit 2, that is, the number of film shots is 24, 36 or other.

When the release switch S3 is operated by the user in the state of determining the number of film shots as described above, the release switch S3 outputs an operation signal to the controller 3. Then, the controller 3 allows the photographing operation to be performed according to the operation signal of the release switch S3 and then the film conveying operation according to the photographing.

In addition, the controller 3 determines whether the film transfer operation is performed and subtracts 1 from the number of film shots determined above, that is, the number of film shots that have been determined. Then, if the number of film shots is 24 films, when the film is initially mounted, the number of recordable films determined by the controller 3 is 24, and the film capable of being photographed as the release switch S1 is operated. The number of copies is reduced from 24 to 23 (S50, S60).

The control unit 3 calculates and determines the number of filmable shots according to the operation signal of the release switch S1, and then reads information on the number of set films already stored from the storage unit 1 (S70).

The control unit 3 determines the number of setting films read from the storage unit 1, and then compares the number of recordable film counts determined and determined above with the set number of films.

When the number of recordable films in the comparison is larger than the set number of films, the control unit 3 causes the shooting to be in a standby state for the next shooting. Then, when the number of recordable films in the comparison is equal to or smaller than the set number of films, the control unit 3 drives a drive signal to the warning unit 4 to perform a shooting end warning indicating that the recordable film is short. (S90)

The warning unit 4 vibrates for a time arbitrarily set by the user according to the driving signal output from the control unit 3.

The camera vibrates according to the vibration of the warning unit 4 as described above, and thus the user recognizes that the end of shooting is not long.

In the operation according to the first embodiment of the present invention, a warning sound generating device may be used to generate a warning sound in place of the warning unit 4 which vibrates to indicate a shooting end warning. Or a warning of the shooting end in place of the operation of the warning unit 50 by displaying a color distinguished from the finder.

In addition, as a warning device to replace the warning unit (4), consisting of a means for generating a vibration, a means for generating a warning sound, and a means for canceling the selection, whether to perform the vibration initially, or generates a warning sound Set whether or not to cancel the operation.

In addition, as the warning unit 4, a method of blinking the number of filmable images on the liquid crystal display device can be used.

Although 5 or less pieces of setting films are suitable above, about 2-3 sheets are preferable generally.

Here, in the first embodiment of the present invention, the user does not set the number of set films stored in the storage unit 1 as the number of recordable films, so that the set number of films is set to the number of films, In other words, a value of 20 or more in the case of 24 films and 31 or more in the case of 36 sheets can be set.

With reference to the accompanying Figures 2 and 5 will be described in the shooting end warning device and method of the APS camera according to a second embodiment of the present invention.

When the user opens the chamber door of the APS camera, mounts the film cartridge, and closes the chamber door, the chamber latch lever connected to the chamber door is moved to open the light leakage preventing door mounted on the film cartridge, thereby making it possible to photograph.

When the user closes the chamber door, the chamber switch S4 interlocked with the chamber door is operated, and an electrical signal corresponding thereto is output to the operation controller 30.

As the film is mounted on the camera, the film recognition switch S5 operates to output an operation signal to the operation controller 30.

The operation control unit 20 determines whether the film is mounted according to the operation state of the chamber switch S4 and the film recognizing switch S5. When the chamber switch S3 is operated, the operation control unit 20 determines that the film is completed. S100)

When the film is mounted, the film information detecting unit 20 reads the disk recording information recorded on the disk formed in the film cartridge, that is, information about the number of film shots, the number of film shots, and the number of film shots that can be recorded. Is output to the operation controller 30.

The operation control unit 30 receives a signal output from the film information detecting unit 20 and determines the number of mounted films, the number of photographed films, and the number of recordable films.

Then, the operation control unit 30 outputs a driving signal to the film transfer unit 40 so that the corresponding position, that is, the first photographable film is located at the photographing position according to the determined film information.

The film transfer unit 40 transfers the film such that the first film that can be photographed is located at a photographing position according to the driving signal output from the operation control unit 30.

The operation control unit 30 that determines the number of recordable films of the mounted film as described above reads the information on the number of set films from the storage unit 10 to determine the number of set films (S400).

Thereafter, the operation control unit 30 compares the set number of film and the number of recordable films and outputs a control signal corresponding to the comparison value (S500).

When the number of filmable shots in the comparison is greater than the set number of films, the operation control unit 30 may be in a shooting standby state where shooting is possible.

When the operation signal of the release switch S6 is input to the operation control unit 30 in the shooting standby state, the operation control unit 30 outputs a control signal so that shooting is performed and then transfers the film according to the shooting operation. The driving signal is output to the film transfer part 40. (S600, S700)

Then, the film transfer unit 40 transfers the film photographed according to the driving signal of the operation control unit 30.

When the motion control unit 30 detects the film transfer according to the photographing as described above, the operation control unit 30 subtracts 1 from the number of recordable films determined above (S800).

Then, the operation control unit 30 compares the number of rewritable films and the set number of films again (S500).

When the number of filmable shots in the comparison is equal to or smaller than the set number of films, the operation controller 30 outputs a control signal to the warning unit 50 (S900).

The warning unit 50 is a liquid crystal display device attached to the outside of the camera so that the user can know the information of the camera, and performs a flashing operation according to the control signal output from the operation control unit 30.

By the flashing operation of the warning unit 60 as described above, the user recognizes that only a few sheets of filmable film are left, so as to avoid shooting at a place where quietness is required or to take necessary measures.

In order to indicate the shooting end warning in the operation according to the second embodiment of the present invention, a warning sound generating device may be used to generate a warning sound instead of the warning unit 50 which blinks the liquid crystal display device. In order to vibrate or display a color distinguished from the finder, the warning of the end of photographing may be performed instead of the operation of the warning unit 50.

In addition, as a warning device to replace the warning unit 50, consisting of a means for generating a vibration, a means for generating a warning sound, and a means for deselecting whether to perform the vibration initially, or generates a warning sound Set whether or not to cancel the operation.

Although the number of setting films can be set arbitrarily by a user, about 2-4 sheets are preferable generally.

Here, in the second embodiment of the present invention, the user does not set the number of set films stored in the storage unit 1 as the number of recordable films, so that the set number of films is set to the number of films, In other words, a value of 20 or more in the case of 24 films and 31 or more in the case of 36 sheets can be set.

The present invention sets the number of films defined by the user and warns the user of the end of shooting when the number of recordable films is less than the set number of films in comparison with the number of shots that can be taken each time the shooting is performed. The noise of the rewinding motor can be prevented, and the stress caused by recognizing that the film cannot be taken after the shooting operation due to the lack of film to be taken can be eliminated, and the reliability of the camera can be improved.

1 is a block diagram of a device for photographing end warning according to a first embodiment of the present invention;

2 is a block diagram of a device for photographing end warning of an APS camera according to a second embodiment of the present invention;

3 is an operation flowchart of the shooting end warning device according to the first embodiment of the present invention;

4 is an operation flowchart of the shooting end warning device of the APS camera according to the second embodiment of the present invention.

Claims (5)

Photographing means for outputting an electrical signal to perform a photographing operation; Film information sensing means for sensing the number of recordable films of the film to be used and outputting a corresponding electric signal; Storage means for storing information on the number of sheets of the set film; The signal output from the film information sensing means is input and the number of recordable films inputted is changed according to the operation signal of the photographing means, compared with the set number of films read from the storage means, and the photographing end is finished by the comparison result. Control means for outputting a control signal corresponding to whether or not to warn; And a shooting end warning means for driving in accordance with a control signal output from said control means to warn end of shooting. The method of claim 1, wherein the photographing end warning means And a warning sound generating means which is driven by a control signal output from the control means and generates a warning sound for several seconds. The method of claim 1, wherein the photographing end warning means And a liquid crystal display device for displaying photographing information of a camera, wherein the number of film shots that can be taken by the liquid crystal display device can be performed according to a control signal output from the control means. Sensing the number of recordable films from a code formed on the film cartridge; Reducing the number of recordable films by 1 as the film is conveyed by photographing by an operation signal of a photographing means for photographing to be performed; Comparing the number of recordable films and the set number of films reduced by one; And warning the end of shooting when the number of filmable shots in the comparison is equal to or smaller than the set number of films. The method of claim 4, wherein the warning of the end of shooting is performed. An end-of-shooting warning method characterized by a warning of end of shooting by blinking the number of recordable films shown on a liquid crystal display which displays information of a camera.