JPH0548184Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a camera with improved operability.

[Conventional technology]

In conventional cameras, a dial (analog) method was used to set shutter speed, aperture, exposure multiple, etc. In this method, each value can be set to a predetermined value by adjusting each dial for shutter speed, aperture, exposure multiple, etc. to a predetermined display value. However, this method has the disadvantage that it is difficult to miniaturize and increase the functionality of the camera since it is necessary to provide a dedicated dial for each.

Therefore, as shown in FIG. 2, a method of displaying a plurality of types of information on one display has recently become popular. In the figure, 1 is a shutter button. Reference numeral 3 denotes a display, which simultaneously displays the number of film shots (30 in the example), shutter speed (125), aperture (F8), exposure mode (A), exposure multiple (+1.5), etc. Reference numeral 2 denotes an operation button for selecting a display so that a desired mode, numerical value, etc. are displayed on the display surface of the display 3. Buttons 4 and 5 are pressed respectively to set shutter speed or aperture;
Button 6 is pressed when setting the exposure multiple.
Button 7 is operated when selecting a mode. 8
is the main switch, and when turned on, the necessary power is supplied to each circuit, component, etc.

Prior to photographing, the main switch 8 is turned on. At this time, the character A indicating the mode is displayed on the display 3.
(Auto) (or M (Manual)), the currently set shutter speed, aperture, exposure multiple, etc.
The number of shots etc. are displayed. When setting the shutter speed to a value different from the displayed value, buttons 4 and 2 are pressed simultaneously. At this time, the value of the shutter speed displayed on the display 3 is increased or decreased in accordance with the selection of the button 2. For example, the shutter speeds that can be set in response to button 2 are 1000, 500, 250, 125, 60, etc.
30, 15, 8, 4, 2, or 1 will be changed and displayed in sequence. The shutter speed is set to the value displayed on the display 3. The aperture and exposure multiple are similarly displayed and set by operating button 2 at the same time as button 5 or 6.

[The problem that the idea aims to solve]

In conventional cameras, the shutter speed, aperture, and exposure multiple expressed in numbers are displayed simultaneously on the display 3, which has the disadvantage that the display is difficult to see.
Also, for these shutter speeds, apertures, and exposure multiples, all possible settings are not displayed, but only the selected value is displayed, so the user can limit the settable range. It cannot be recognized at a glance, and since the operation button 2 and the display 3 are far apart, the actual sensitivity to the result selected by the operation button 2 being displayed on the display 3 is weakened, resulting in poor operability. was wrong.

The present invention was devised in view of this situation, and aims to improve operability and make the display easier to see.

[Means to solve the problem]

The camera of this invention selectively displays multiple types of information related to photography, such as shutter speed and aperture, and also includes a display that displays all the values that can be set for each piece of information, and a display that displays all the values that can be set for each piece of information. A dial rotatably disposed on the inner or outer periphery of the display unit, integrally with or independently of the display unit, so that a desired value can be selected from all displayed values; and the desired value. A detection means for detecting the rotational position of a dial or display that is rotated when selecting a display, a switch that is operated when selecting a type of display on the display, and all settable values of the type selected by the switch. and a control means for controlling mechanisms such as a shutter and an aperture based on the output of the detection means.

[Effect]

When you operate the switch, for example, the shutter speed,
Either the aperture or the exposure multiple is displayed on the display. At this time, all settable values are displayed on the display. The user selects and sets one of the displayed values by rotating a dial placed on the outer periphery (or inner periphery) of the display to a predetermined position.

Therefore, without increasing the size of the camera, it is possible to obtain the same operability as in the case of a dial type, and at the same time, the display is easy to see and multifunctionality is possible.

〔Example〕

FIG. 3 shows the top view of the camera of the present invention. In the figure, 31 is a shutter button.
Reference numeral 32 denotes a display made of, for example, liquid crystal, disposed on the upper cover 37, and a dial 34 is rotatably disposed coaxially with the display 32 on the outer periphery (or inner periphery) thereof. 33 is a switch which is switched to F, T or ± display position when setting the aperture, shutter speed or exposure multiple.
Button 35 is operated when switching modes. 36 is the main switch, 38 is the dial 34
This is the mark displayed above.

FIG. 1 shows the cross-sectional structure of the display 32 and dial 34. In the figure, 41 is the display 32
This is a substrate on which a pattern of lines for supplying signals and power and contacts 48, which will be described later, are formed. The display 32 is fixed to the substrate 41 via a fixing base 42. Substrate 41 (therefore, fixed base 42 and display 32)
is fixed to a part of the camera body (not shown).
A flexible printed circuit 43 electrically connects the pattern on the substrate 41 and the pattern on the back surface of the display 32. 45 is the upper cover 37
A ball 44 is rotatably supported by a ball 4.
The click plate 44 is a click plate that is rotatable with respect to the upper cover 37 and has a plurality of holes 50 into which the dials 5 are fitted.The click plate 44 is fixed to the dial 34. 4
Reference numeral 6 denotes a brush holder having a brush 47, which connects the click plate 44 (dial 34) via a member 49.
It is fixed to and can be rotated integrally with it. A plurality of contacts 48 are formed radially on the substrate 41 so as to come into contact with the brush 47 at a click position where one of the holes 50 of the click plate 44 is fitted with a ball 50.

With this configuration, predetermined power and signals are supplied to the display 32 via the substrate 41 and the flexible printed circuit 43. Further, the dial 34 can be rotated relative to the upper cover 37 and stopped at a predetermined click position where the ball 45 faces the hole 50. The stop (rotation) position of this dial 34 is the dial 3
This is detected by detecting the stop (rotation) position of the brush 47, which rotates integrally with the brush 4, relative to the contact 48. That is, the brush 47 and the contact 48 constitute a detection means for detecting the rotational position of the dial 34.

FIG. 4 shows the arrangement of display segments of the display 32. In the figure, 62 to 69 are display elements. The display elements 62 are formed into a set of four 7-segment display elements so that a four-digit number can be displayed, and 11 of these sets are arranged radially. The display elements 63 and 64 display + and - marks indicating the direction (positive or negative) of the exposure correction amount. The display elements 65 and 66 display the letter A indicating the exposure mode.
(auto mode) or M (manual mode) are displayed respectively. The display element 67 is composed of two relatively large 7-segment display elements, and displays the number of shots of the film. Display elements 68 and 69 display the loading and running of the film.

FIG. 5 is a block diagram of the camera of the present invention.
In the figure, 71 is a battery, which supplies necessary power to each circuit, means, etc. when the main switch 36 is turned on. Reference numeral 72 denotes a control circuit composed of, for example, a microcomputer, which controls each circuit, means, etc. Reference numeral 73 denotes a memory consisting of ROM, RAM, etc., which stores programs for controlling each circuit, means, etc., data to be displayed on the display 32, and the like. 75 is a drive circuit that drives the display 32. Reference numeral 76 denotes a detection means for detecting mounting, running, etc. of a film (patrone). 77 is a shutter mechanism, and 78 is an aperture mechanism, each of which is controlled by a control circuit 72 to drive the built-in shutter and aperture.

When the main switch 36 is turned on, the control circuit 72, drive circuit 75, and shutter mechanism 7 are powered by the battery 71.
7. Necessary power is supplied to the aperture mechanism 78 and the like.

Set manual mode with button 35,
When manually inputting shutter speed, switch 33
is switched to contact T. At this time, the control circuit 7
2 reads data on shutter speeds that can be set from the memory 73 and outputs it to the drive circuit 75. The drive circuit 75 drives the display 32 in accordance with the input data, and causes the display element 62 to display the shutter speed, for example, as shown in FIG. In the case of FIG. 6, 1000, 500, 250, 125, 60, 30, 15,
The values 8, 4, 2, and 1 are displayed simultaneously.
The user then rotates the dial 34 in a predetermined direction,
The mark 38 is made to correspond to the value to be set. The dial 34 can be set to a position corresponding to each display value by means of a click plate 44 and a ball 45. Since the brush holder 46 rotates integrally with the dial 34, the brush 47 rotates in response to the rotation of the dial 34.
The contact point 48 that contacts changes. The control circuit 72 reads the selected value by detecting the contact 48 that the brush 47 is in contact with, and sets the value as the shutter speed. In the embodiment of FIG. 6, the shutter speed is set at 1/30 second.

Note that Figure 6 shows the state when the shutter priority auto mode, which will be described later, is selected.
Although the letter A is displayed by the display element 65,
When the manual mode is selected, the display element 66 displays the letter M.

When the auto mode giving priority to the shutter speed is selected by the button 35, the control circuit 72 sends the shutter speed data and the letter A data from the memory 73 regardless of the switching position of the switch 33 (even if it has been switched to position F). read out,
As shown in FIG. 6, the shutter speed and the letter A are displayed on display elements 62 and 65. In this case, the shutter speed is displayed on the display 32 without switching the switch 33 to position T (although it is of course possible to configure it so that it is switched), so the shutter speed can be set by immediately rotating the dial 34. It can be set to a predetermined value.

Further, in FIG. 6, since the film cartridge is detected by the detection means 76, the display elements 68 and 69 are lit. Further, when the running of the film is detected, the display element 69 blinks during that time. Further, the number of photographed images detected by the detection means 76 is displayed on the display element 67.

In the embodiment shown in FIG. 6, the display elements 65 (or 66), 67, 68, and 69 are displayed simultaneously when displaying the shutter speed.
It is also possible to display these independently of the shutter speed.

Select manual mode with button 35,
When setting the aperture, the switch 33 is switched to contact F. At this time, the control circuit 72
Reads data regarding the aperture that can be set from
For example, it is displayed as shown in FIG. 7 (note that the letter M is omitted in FIG. 7). In this example, 22, 16, 11, 8, 5.6, 4,
Each value of 2.8, 2, and 1.4 is displayed by the display element 62. Then, similarly to setting the shutter speed, the mark 38 on the dial 34 is directed to a predetermined value. Control circuit 72 reads this selected value through contact between brush 47 and contact 48 and controls aperture mechanism 78 to set the aperture to the selected value. In the example, the aperture is set to F2.8.

When the aperture priority auto mode is selected using the button 35, the aperture data and the letter A are displayed on the display 32 regardless of the switch position of the switch 33 (even if the switch 33 is set to position T).
is displayed and the aperture can be set immediately, just like when the auto mode with priority on shutter speed is selected.

The aperture or shutter speed in the auto mode with shutter speed priority or aperture priority is automatically determined by the control circuit 72 by calculating the photometry results of a photometer (not shown). Therefore, in these auto modes, switch 33 is set to position F or T.
Even if the camera is switched to , the aperture or shutter speed will not be displayed on the display 32 . Also switch 35
When the program mode is selected, both the shutter speed and aperture are automatically determined, so even if the switch 33 is set to position T or F, the shutter speed and aperture are not displayed on the display 32. It is also possible to display the letter P on the display 32 during the program mode.

In any mode, when setting the exposure multiple, the switch 33 is switched to contact ±. At this time, the control circuit 72 reads data regarding the settable exposure multiple from the memory 73, and
It is displayed on the display 32 as shown in the figure. In this example, 0.5 and 0.5 are respectively placed above and below the numerical value 0.
Each value of 1, 1.5, 2, and 2.5 is displayed by the display element 62. Since the mark 38 corresponds to a value above 0, the display element 63 indicates +
mark is displayed. When the mark 38 corresponds to the lower numerical value, the display element 64 displays a - mark. When the mark 38 on the dial 34 is set to the desired value, the control circuit 7
2 reads the selected value from the contact between the brush 47 and the contact 48, and the exposure multiple is set to a predetermined positive or negative value. The control circuit 72 simultaneously controls and adjusts one or both of the shutter mechanism 77 and the aperture mechanism 78 in accordance with the set value.

When the shutter button 31 is pressed, a photograph is taken at a manually or automatically set shutter speed and aperture.

FIG. 9 represents another embodiment of the invention.
In this embodiment, the mark 38 is the upper cover 37.
, and the display 32 rotates integrally with the dial 34. Even with this configuration, by detecting the rotational position of the dial 34 (indicator 32), it is possible to realize the same operation as in the case described above.

When the auto mode or program mode is set using the button 35 and the shutter speed and aperture are automatically determined, the calculated and determined values can be displayed by making the display 32 display a display corresponding to the switching position of the switch 33. The value indicated by the mark 38 (display value) may not match. To prevent this, the display can be stopped as described above, but for example, the display position of each display value or the mark 3
It is also possible to automatically change the rotational position of 8.

[Effect of idea]

As described above, according to the present invention, the shutter speed, aperture, exposure multiple, etc. can be selectively displayed on the display, making it possible to downsize the camera, as well as attaching a cartridge and loading the film. It becomes possible to have multiple functions, such as displaying the number of shots taken while driving. In addition, all settable values are displayed, and any value can be selected by rotating a dial placed on the outer or inner circumference of the display, so the entire settable range can be seen at a glance. It is possible to recognize and select any value from among them, and at the same time, it is easier to see the results of the selection and setting on the display.
Therefore, the operability is improved, and even elderly people, women, etc. who are relatively inexperienced with operations can operate the device reliably.

[Brief explanation of the drawing]

Figure 1 is a sectional view of the display of the camera of the present invention, Figure 2 is a top view of a conventional camera, Figure 3 is a top view of the camera of the present invention, and Figure 4 is a view of the display of the camera of the present invention. 5 is a block diagram of the camera of the present invention, FIG. 6 is a top view of the display of the camera of the present invention when the shutter speed is displayed, and FIG. 7 is a top view of the display of the camera of the present invention when the aperture is displayed. top view of camera display;
FIG. 8 is a top view of the display of the camera of the present invention when displaying the exposure multiple, and FIG. 9 is a top view of the display of another embodiment of the present invention. 1...Shutter button, 2...Operation button, 3
...Display, 4, 5, 6, 7...Button, 31...
...Shutter button, 32...Display, 33...Switch, 34...Dial, 35...Button, 3
6...Main switch, 37...Top cover, 41
... Board, 43 ... Flexible printed circuit,
44...Click board, 45...Ball, 46...
Brush holder, 47...brush, 48...contact,
50...hole, 62 to 69...display element, 72...
... control circuit, 73 ... memory, 75 ... drive circuit, 76 ... detection means, 77 ... shutter mechanism,
78...Aperture mechanism.

Claims (1)

[Scope of utility model registration request] A display that selectively displays multiple types of information related to shooting, such as shutter speed and aperture, as well as all values that can be set for each information, and all values displayed on the display based on each of the above information. so that you can select the desired value among
A dial rotatably disposed on the inner or outer periphery of the display, integrally with or independently of the display, and a detection means for detecting the rotational position of the dial or display that is rotated when selecting the desired value. , a switch operated when selecting the display type of the display, a driving means for driving the display so that all settable values of the type selected by the switch are displayed simultaneously, and an output of the detection means. A camera comprising a control means for controlling mechanisms such as a shutter and an aperture based on the following.