JPH06208164A - Camera - Google Patents

Abstract

PURPOSE:To provide a camera capable of displaying the photographing aspect ratio without providing a dedicated display segment by displaying the photographing aspect ratio concurrently with the existing display of the Tv value and the number of frames. CONSTITUTION:A microprocessor 1 detects whether an aspect ratio selecting SW 12 is pushed or not. If it is pushed, the photographing aspect ratio is selected. If it is not pushed, a rotary dial 14 is detected, and the Tv value is set. The set Tv value is displayed on the display section of a display circuit 21. The display section is constituted of multiple segments, display segments (a)-(d) are normally used to display the Tv value, display segments (e)-(g) are used to display the Av value, and display segments (h), (i) are used to display the number of frames. The photographing aspect ratio is displayed concurrently with the existing display of the Tv value and the number of frames, and the photographing aspect ratio can be selected while no dedicated display segment is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of selecting one from a plurality of photographing aspect ratios, and particularly to its display.

[0002]

2. Description of the Related Art In a conventional camera, a shooting aspect ratio is displayed on a display means of 7 segments, and there is no one that is also used for displaying other numbers.

[0003]

However, in selecting the shooting aspect ratio, if it is not combined with other numbers, a dedicated display segment must be provided, which leads to an increase in cost and a user's convenience. The amount of information you see at one time becomes large, and it is confusing what the display is.

The present invention has been made in order to solve the conventional problems, and an object thereof is to provide a camera capable of displaying a photographing aspect ratio without providing a dedicated display segment.

[0005]

To achieve the above object, the camera of the present invention has a first mode for selecting a shooting aspect ratio, a second mode for displaying shooting data, and one or more modes. Has a display means composed of 7 segments and has a photographing aspect ratio of "H", "L",
According to the switching between the first mode and the second mode, the first display and the second display are displayed between the first display that displays “P” and the second display that displays data related to shooting. Since the first display and the second display are performed by the same member of the display means, the switching means is a dedicated photographing aspect ratio changeover switch, and usually the second display. Is displayed by the display means, or the switching means is a photometric start switch, and normally the first display is displayed by the display means.

[0006]

According to the present invention, the display of the shooting aspect ratio (H, L, P) is also used as the existing display of the Tv value, the number of frames, etc., so that the shooting aspect can be realized without having a dedicated display segment. The ratio can be selected.

[0007]

EXAMPLE FIG. 1 shows three aspect ratios.

In FIG. 1, (a) prints the entire area of the film and is called H print (aspect ratio 9:16).

(B) obtains a print with an aspect ratio of 2: 3 by ignoring the left and right sides of the film and prints it, and is called L print.

(C) obtains a horizontally long print having an aspect ratio of about 1: 2.7 by printing while ignoring the upper and lower portions of the film, and will be called P print.

FIG. 2 is a perspective view showing a schematic internal structure of a camera used in the present invention.

In FIG. 2, R is a feeding photoreflector which detects the perforation P of the film F and feeds the film at a constant distance, M is a film feeding motor arranged in a spool, and G is a decelerating and A gear train for switching between winding and rewinding, K is a rewinding fork, C is a film cartridge, F is the above-mentioned film having a magnetic layer coated on the base side, and T is data such as an exposure situation frame number and an aspect ratio. A magnetic track (magnetic storage unit) in which data is recorded as magnetic information, P is the perforation corresponding to the photographic screen, H is a magnetic head for writing and reading information on the magnetic track T on the film F, and D is It is a pressure bonding pad for pressing the film F against the magnetic head H.

FIG. 3 is a block diagram showing an embodiment of the present invention.

In FIG. 3, 1 is a microprocessor for controlling the camera, 2 is a photometry circuit, 3 is a distance measurement circuit, 4 is a shutter control circuit, 5 is an aperture control circuit, and these are all known circuits. To be done. 6 is a photometry / distance measurement start switch (SW1), 7 is an exposure start switch (SW2),
These are the first switch and the second stroke of the same switch, respectively.
It is a switch that turns on with a stroke. 8 is a main switch, 9 is a magnetic recording circuit for writing information on a film, 10 is a magnetic head (H in FIG. 2), 11 is a back lid open / closed detection switch, and 12 is a select switch for selecting an aspect ratio. While the button is being pressed, the aspect ratio selection mode is set, and the selected aspect ratio is displayed on the display section of the display circuit 21. 13 is a switch for selecting whether or not to perform the reset operation of the aspect ratio setting, 1
Reference numeral 4 is a rotary dial for setting an aspect ratio and a Tv value. For example, a 2-bit signal with a 90 ° phase shift is sent to the microprocessor 1 to detect the rotation direction and the number of rotation clicks. Since this information setting method is known in JP-A-58-63922 and JP-A-60-103331, detailed description thereof will be omitted. Reference numeral 15 is a motor drive circuit for feeding the film 16, 17 is a motor (M in FIG. 2), and 18 is a lens detection switch. Reference numeral 19 is a cartridge detection switch, 20 is a film number reading unit for reading the number of films recorded by a bar code or the like on the film cartridge, 21 is the setting of the selected aspect ratio, the number of films and the shutter. A display circuit for displaying a control value, an aperture value, and the like.

FIG. 4 shows the display section of the display circuit 21.

The display section is composed of a plurality of 7 segments, and the display segments a, b, c, d are usually
Used as a Tv value display. Display segments e, f,
g is used as an Av value indicator. Display segment h,
i is used as a frame number display.

FIG. 5 is a flow chart showing the basic operation of the microprocessor 1 which is an embodiment of the present invention.

Step 101 (Step S in the drawing)
Is detected), it is detected whether the aspect ratio selection switch 12 is pressed. If it is pressed, step 1 is performed.
In 02, the photographing aspect ratio is selected. If it is not pressed, the rotary dial 14 is pressed in step 103.
Is detected and the Tv value is set (for example, 2 seconds to 1/100
Repeat every 0 steps until 0 seconds. Then, in step 104, the set Tv value is displayed on the display unit of the display circuit 21.

Next, in step 105, the aspect ratio reset selection switch 13 is detected, and it is selected for each frame whether to return to the initial setting value or not.

If neither SW1 nor SW2 is pressed, steps 101 to 106 are executed. If only SW1 is pressed, step 1
06 to 109 will be executed. In step 107, AE and AF are calculated. Next, SW2
When is pressed (step 109), the film is exposed in step 110, and the aspect ratio selected in step 111 is changed to the magnetic recording circuit 9 and the magnetic head 10.
If it is selected to return to the initial setting value for each frame in step 112, the aspect ratio setting is returned to the default value (H in this case) in step 113, and the process returns to step 106. .

FIG. 6 shows details of step 102 shown in FIG.

When it is recognized that the aspect ratio selection switch 12 is ON, the dial state is detected in steps 200 and 210, and H, L, and P are displayed cyclically each time movement of one click is detected. Switch. That is, when the rotation in the + direction is detected (step 200),
If the current aspect ratio is H, then L, if L, then P, P
In the case of, it changes to H (steps 201 to 206).
Similarly, when rotation in the-direction is detected (step 21
0), P when the current aspect ratio is H, H when it is L,
If P, change to L (steps 211 to 216).
Then, display is performed according to the selected aspect ratio (step 220).

FIG. 7 shows step 2 in the first embodiment.
20 shows details of 20.

In step 301, the segment data for displaying "H" on the display segment b is set, and similarly, the segment for displaying "L" on the display segment c and the segment for displaying "P" on the display segment d. Set the data.

In steps 302 to 304, corresponding display segments b, c, d are blinked in steps 305 to 307 according to the selected format. Step 308 is a case where the format is recognized as other than H, L, and P, and this is not normally possible, and it is considered that an error has occurred. Therefore, both display segments b, c, and d are blinking, and it is an error. This will be displayed.

FIG. 8 shows the display circuit 2 according to the first embodiment.
2 shows a display state of the display unit No. 1.

Normally, the segments a, b, c and d display the Tv value, and by operating the operating unit 12,
Move to the state below the dotted line and operate the dial 14 to
By changing the blinking state of H, L, P respectively,
It is possible to recognize which state is selected.

FIG. 9 is a flow chart showing details of step 220 in the second embodiment of the present invention.

In steps 401 to 403, steps 404 to 406 are performed according to the selected formats H, L, P.
The segment data of the corresponding display segments b, c, d are set at. Step 407 is a case that is usually impossible, so clear the display segment,
It is displayed as an error.

FIG. 10 is a diagram showing the display state of the display section of the display circuit 21 in the second embodiment of the present invention.

Normally, the segments a, b, c and d display the Tv value, and by operating the operation unit 12,
Move to the state below the dotted line and operate the dial 14 to
It is possible to recognize which state is selected by lighting one at a position where the aspect ratios of the selected H, L, and P are different.

FIG. 11 is a flow chart showing details of step 220 in the third embodiment of the present invention.

In steps 501 to 503, steps 504 to 506 are performed according to the selected format H, L, P.
Set the segment data of the corresponding display segment d. In step 507, since it is usually impossible, the display segment is cleared to indicate that an error has occurred.

FIG. 12 is a diagram showing the display state of the display portion of the display circuit 21 in the third embodiment shown in FIG.

Normally, the display segment d displays the first digit of the Tv value, and by operating the operating section 12, the state moves to a state below the dotted line, and the dial 14 is operated to set H, L, P. By lighting one of the selected aspect ratios at the same place, it is possible to recognize which state is selected.

FIG. 13 is a flow chart showing the fourth embodiment of the present invention.

In FIG. 13, the same operations as those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. Only the points of operation different from those of FIG. 5 will be described.

First, in step 101, it is detected whether or not the aspect ratio selection switch 12 is pressed. If not pressed, in step 104 ', the display of the number of shooting frames is displayed on the display unit of the display circuit 21. To do.

FIG. 14 is a flow chart showing details of step 220 in the fourth embodiment of the present invention.

In steps 601-603, steps 604-606 are performed according to the selected format H, L, P.
The segment data of the display segment i corresponding to is set. Since step 607 is a case where it is usually impossible, the display segment is cleared to indicate that an error has occurred.

FIG. 15 is a diagram showing the display state of the display portion of the display circuit 21 in the fourth embodiment shown in FIG.

Normally, the segment i is displaying the number of frames, and by operating the operating unit 12, the state below the dotted line is moved, and by operating the dial 14, H, L,
It is possible to recognize which state is selected by lighting one light at the same aspect ratio for each selected P.

FIG. 16 is a flow chart showing the fifth embodiment of the present invention.

Operations similar to those in FIG. 5 are designated by the same reference numerals, and the description thereof will be omitted. Only the points different from the operations in FIG.

In step 102, normally (SW1
Is OFF), the display for selecting the aspect ratio is being performed. Further, in step 108, the value according to the photometry is performed at the same place instead of displaying the aspect ratio.

In the case of the fifth embodiment, the aspect ratio selection SW (12) in the block diagram of FIG. 3 is unnecessary. Since step 220 at this time is the same as that in FIG. 9, the description thereof will be omitted.

FIG. 17 is a diagram showing a display state of the display section of the display circuit 21 in the fifth embodiment of the present invention.

Normally, the aspect ratio can be selected, and by operating the dial 14, one of the selected aspect ratios H, L, and P lights up to recognize which state is selected. You can

When the photometry start switch 6 is operated, the state below the dotted line is entered, the photometry is started, and the result of the photometry is displayed.

As described above, in the present invention, the Tv value is used as the image-capturing data that also serves as the display, but the same applies when the Av value or other image-capturing data is used.

The display unit may be an external display member or a display member in the finder.

[0052]

As described above, according to the present invention, the display of the photographing aspect ratio is combined with the existing display of the Tv value, the number of frames, etc., so that the user does not have a dedicated display segment, There is the effect that the shooting aspect ratio can be selected without causing confusion.

[Brief description of drawings]

FIG. 1 is a diagram showing a plurality of aspect ratios.

FIG. 2 is a perspective view showing a schematic internal configuration of a camera used in the present invention.

FIG. 3 is a block diagram showing an embodiment of the present invention.

FIG. 4 is a diagram showing a display portion of a display circuit.

FIG. 5 is a flowchart showing an operation of the microprocessor 1.

FIG. 6 is a flowchart showing step 102 in the operation of the microprocessor 1.

FIG. 7 is a flowchart showing step 220 in the operation of the microprocessor 1.

FIG. 8 is a diagram showing a display state of a display unit of a display circuit.

FIG. 9 is a flowchart showing details of step 220 in the second and fifth embodiments of the present invention.

FIG. 10 is a diagram showing a display state of a display section of the display circuit 21 in the second embodiment of the present invention shown in FIG.

FIG. 11: Step 22 in the third embodiment of the present invention
It is the flowchart which showed the detail of 0.

FIG. 12 is a diagram showing a display state of a display section of a display circuit 21 in the third embodiment shown in FIG.

FIG. 13 is a flow chart showing a fourth embodiment of the present invention.

FIG. 14 is a step 22 in the fourth embodiment of the present invention.
It is the flowchart which showed the detail of 0.

15 is a diagram showing a display state of a display section of the display circuit 21 in the fourth example shown in FIG.

FIG. 16 is a flow chart showing a fifth embodiment of the present invention.

FIG. 17 is a diagram showing a display state of the display section of the display circuit 21 in the fifth embodiment of the present invention shown in FIG. 9.

[Explanation of symbols]

 1 Microprocessor 12 Aspect ratio selection SW 14 Rotating dial 21 Display circuit

Claims (3)

[Claims] 1. A first mode for selecting a photographing aspect ratio, a second mode for displaying photographed data, and a display means composed of one or a plurality of 7 segments, and the photographing aspect ratio Depending on the switching between the first mode and the second mode, the first display between H, L, and P and the second display that displays data related to shooting are displayed.
A camera capable of selecting a photographing aspect ratio, characterized in that the first display and the second display are performed by the same member of the display means by having a switching means for switching between the display and the second display. 2. The camera according to claim 1, wherein the switching means is a photographing aspect ratio switching switch, and normally the second display is performed by the display means. 3. The switching means is a photometric start switch,
The camera according to claim 1, wherein the first display is normally performed by the display means.