DE4027668A1 - DISPLAY SYSTEM FOR A CAMERA - Google Patents

Description

The present invention relates to a display system for a camera and particularly concerns a display system for a camera with a display unit, the can display a variety of information related to Photography is necessary.

Since the automation of cameras in the past Years have evolved on a large scale to become cameras with an auto focus unit and auto exposure unit in use. However, recently there has been more and more demand for advanced functions like a short focus time and an improvement in Focusing precision. In addition, there is ask for a camera with a large display that a lot of information about that Taking pictures at a glance, like complicated and different program exposure modes like a shutter speed priority mode  for a telephoto lens or a depth of field priority rity mode for a wide-angle lens, but also how the number of pictures taken, a program mode etc.

For this purpose, a camera has been developed with a Liquid crystal display attached to a main body of the Camera is attached and exposure modes such as manual, Auto, program, B exposure (B = bulb, i.e. a loading lighting mode, in which exposure takes as long as the Shutter button remains depressed) etc. or a shutter speed or the number of pictures taken and the like.

Although the mode at the time of photography Actuation of a selection switch can change while Information about the camera on the liquid crystal such a camera suffers however, with the disadvantages that are shown on the display provided information is visualized too small, and that it is difficult to run an operation at the time to which a mode is set.

It is therefore the object of the present invention the problems associated with conventional cameras solve and create a display system for a camera, with which information about the camera is so can display a display unit, so that the In formation can be easily visualized or recorded can, and that an improved operability for Time of setting a shooting mode and others Modes.

In order to solve the above-mentioned task, an advertisement system for a camera for displaying recording data  or of information regarding the camera on the line show unit created in a main housing of the Camera is arranged, the recording data or the Recording information in subtitle data or information tion by a variety of subtitles is to be shown and the subtitle data or the sub subordinate data or information is divided, and wherein the display system is an In formation display switching device for selecting and View subtitle data or information and the subordinate data or information on the To has display unit.

Since the arrangement mentioned for the display system of Camera regarding the display of subtitle information allowed a shooting mode or the like simple operation by changing the subtitle formation in order on the display unit shows, the photographer can choose desired subtitles find out information quickly and easily if he the subtitle information on the display unit Time of setting a mode visualized. If the Photographer the desired subtitle information has chosen, the detailed information that the concerns the selected subtitle information desired, quickly displayed on the display unit, so that the visualizability along with the operating ability can be improved, thereby reducing that of Photographer otherwise work to be done Time of setting a mode can.

Further advantages, features and possible applications the present invention result from the sub claims and from the following description of Embodiments in connection with the drawing.

Fig. 1 is a schematic representation of a control block of a display system for a camera according to the invention;

Fig. 2 is an enlarged schematic illustration of an essential part of the control block of Fig. 1;

Fig. 3 is a schematic illustration of a detail of a switch box and a central processing unit (CPU) of the control block of Fig. 1;

Fig. 4 is a plan view of a camera to which the invention is applied;

Fig. 5 is a schematic representation of the display content of a dot liquid crystal display (LCD) and an arrangement of switches for operating the dot LCD of the camera;

Fig. 6 is a schematic illustration of a four-divided dot LCD and the arrangement of switches corresponding to the areas of the four-divided dot LCD;

Figure 7A is a schematic representation of a display of the four areas prior to operation of the dot LCD with a title displayed on each of the areas;

Fig. 7B is a schematic illustration of a display of the display titles of the four areas of the dot LCD changed from the state of Fig. 7A by operating the UP switch;

Fig. 7C is a schematic representation of a display of the displayed titles of the four areas of the dot LCD which are changed from the status of Fig. 7B by further pressing the UP switch;

Figs. 8A and 8B are schematic illustrations of displays of the four areas before other operations of the dot LCD, wherein on each of the areas of a title is displayed;

Fig. 9A is a diagram showing a display of the four areas of the dot LCD prior to the operation of an "exposure setting mode", each of which shows a title, and the arrangement of the switches for operating the dot LCD;

FIG. 9B is a schematic illustration of a display of the four areas, on each of which a title is displayed when the display status has changed from the state according to FIG. 9A by actuation of an operating switch, and the arrangement of the corresponding operating switches;

. 9C to 9F Fig all schematic depicting settings of display on a screen of the dot-LCDs compared to the status shown in FIG 9B are obtained by selectively operating respective switches at the appropriate time.

Fig. 9G and 9H are schematic representations of displays on the screen of the dot LCDs, which are obtained from the state shown in FIG 9F, by selectively operating the UP switch or the DOWN switch, in each case at an appropriate time.

Fig. 10A is a schematic illustration of a display of the four areas of the dot LCD prior to the operation of an "exposure setting mode" on which a title is displayed, and the arrangement of the switches for operating the dot LCD;

FIG. 10B is a schematic illustration of a display of the four areas, each of which displays a title when the display status has changed from the status of FIG. 10A by operating an operation switch, and the arrangement for the corresponding operation switches;

FIG. 10C to 10F are schematic illustrations of the displays on the screen of the point LCDs that have changed by selectively switching operation of the respective switch at the appropriate times compared to the state of FIG. 10B;

Fig. 10G and 10H are schematic views of the displays on the screen of the point LCDs that have relation to the status of FIG 10F changed by selectively operating the UP switch or the DOWN switch at appropriate times.

FIG. 11A is a schematic representation of a display of the four areas of the dot LCD prior to operation of a "flash setting," on each of which weils a title is displayed, and the arrangement for the switches for operating the dot LCD;

FIG. 11B is a schematic illustration of a display of the four areas, on each of which a title is displayed, the display status having changed from the status according to FIG. 11A by switching on operating switches, and the arrangement for the corresponding operating switches; FIG.

FIG. 11C to 11G are all schematic depicting settings of the displays on the screen of the dot LCD, the state points from the state of Figure 11B by selective switching of the switch at appropriate times depending weiligen has changed.

Fig. 12A is a schematic illustration of a display of the four areas of the dot LCD prior to operation of a "drive mode", each showing a title, and the arrangement for the switches for operating the dot LCD;

Fig. 12B is a schematic representation of a display of the four areas on which a title is displayed, the display status has changed from the status of Fig. 12A by turning on an operation switch, and the arrangement for the corresponding operating switch;

FIG. 12C to 12F are schematic illustrations of the displays on the screen of the dot LCD whose state opposite the state shown in FIG 12B altered by ge One suitable switching of respective switches.

FIG. 12G is a schematic illustration of an indication on the screen of the dot LCD when it changes from the status of FIG. 12F by selectively switching an EF switch and the UP switch or the DOWN switch at an appropriate time Has;

FIG. 13A is a schematic representation of a display of the four areas of the dot LCD prior to operation of a "light measuring mode", on each of which a title is displayed, and the arrangement of the switches for operating the dot LCD;

Fig. 13B is a schematic representation of a display of the four areas, on each of which a title is displayed, the display status has changed compared to the status of Fig. 13A by turning on an operation switch, and the arrangement for the corresponding operating switch;

FIG. 13C and 13D are schematic illustrations of the displays on the screen of the dot LCD, which has changed from the state of FIG turn by suitable A 13B of respective switches.

Fig. 14A is a schematic illustration of a display of the four areas of the dot LCD prior to operating an "Xv mode", each with a title, and the arrangement for the switches for operating the dot LCD;

FIG. 14B and 14C are schematic illustrations of the displays on the screen of the dot LCD who 14A changed by suitably switching of respective switches from the state of FIG.

Fig. 15A is a schematic illustration of a display of the four areas of the dot LCD prior to operating an "ISO setting mode", each of which has a title, and the arrangement for the switches for operating the dot LCD;

FIG. 15B and 15C are schematic illustrations of displays on the screen of the dot LCD, which have with respect to the state of Figure 15A modified by selective activation of respective switches at appropriate times.

Fig. 16A is a schematic illustration of a display of the four areas of the dot LCD prior to operating a "MULTI exposure mode", each of which has a title, and the arrangement for the switches for operating the dot LCD;

Have changed from respective switches at an appropriate time 16B and 16C are schematic illustrations of the displays on the screen of the dot LCD, the switch compared to the state of Figure 16A by selectively A..;

Fig. 17A is a schematic illustration of a display of the four areas of the dot LCD prior to operating an "AE lock mode", each of which has a title, and the arrangement of the switches for operating the dot LCD;

FIG. 17B is a schematic illustration of a display of the four areas, on each of which a title is displayed, the display status having changed from the status according to FIG. 17A by switching on an operating switch, and the arrangement for the corresponding operating switches;

FIG. 17C to 17E are schematic illustrations of the displays on the screen of the dot LCD that have relation to the status of Figure 17B modified by selective activation of respective switches at appropriate times.

FIG. 18A is a schematic representation of a display of the four areas of the dot LCD prior to operation of "AF mode", on each of which a title is displayed, and the arrangement of the switches for operating the dot LCD;

FIG. 18B is a schematic illustration of a display of the four areas, on each of which a title is displayed, the display status having changed from the status according to FIG. 18A by switching on an operating switch, and the arrangement for the corresponding operating switches; FIG.

FIG. 18C, 18E and 18G are schematic views of the displays on the screen of the dot LCD, which have changed from the status shown in FIG 18B by selectively switching the respective switches at an appropriate time.

Fig. 18D is a schematic illustration of the display on the dot LCD screen that has changed in a constant time period after the state of Fig. 18C;

Fig. 18F is a schematic illustration of the display on the dot LCD screen that has changed in a constant period of time after the state of Fig. 18E;

Fig. 18H is a schematic illustration of the display on the dot LCD screen that has changed in a constant period of time after the status of Fig. 18G;

Fig. 19A is a schematic illustration of a display of the four areas of the point LCD prior to operating a "motor zoom mode", each showing a title, and the arrangement of the switches for driving the point LCD;

FIG. 19B is a schematic illustration of a display of the four areas, on each of which a title is displayed, the display status having changed from the status according to FIG. 19A by switching on an operating switch, and the arrangement for the corresponding operating switches; FIG.

FIG. 19C to 19E are schematic illustrations of the displays on the screen of the dot LCD, which have changed from the status shown in FIG turn by selectively A 19B of respective switches at an appropriate time.

Fig. 20A is a schematic illustration of a display of the four areas of the dot LCD prior to operating a "sum mer mode", each showing a title, and the arrangement for the switches for operating the dot LCD;

Fig. 20B is a schematic representation of a display which is divided into two areas, on each of which a title is displayed, wherein the display status has changed compared to the status of Fig. 20A by turning on an operating switch, and the arrangement for the corresponding operating switch ;

FIG. 20C is a schematic illustration of the display on the dot LCD extending 20B has changed by selectively turning on the corresponding switch at an appropriate time in relation to the status of FIG.

Fig. 21A is a schematic representation of the four areas of the dot LCD prior to operating a "battery voltage test mode", each with a title, and the arrangement for the switches for operating the dot LCD;

Fig. 21B is a schematic representation of the display of a "battery" identifier on the screen of the dot LCD, the state of which has changed from that of Fig. 21A by selectively turning on the corresponding switch at an appropriate time, the identifier indicating that the battery voltage is sufficient;

Fig. 21C is a schematic representation of the display of the "battery" identifier on the screen of the dot LCD, the display having changed from the state of Fig. 21A by selectively turning on the appropriate switch at an appropriate time, the Identifier indicates that the battery voltage or its capacity is reduced by half;

FIG. 21D is a schematic representation of the display of a "battery" identifier on the screen of the dot LCD, the state of which has changed from FIG. 21A by selectively switching the corresponding switch at an appropriate time, the identifier indicating that the battery is empty;

Fig. 22 is a flowchart showing a main routine related to the operation of this embodiment;

Fig. 23 is a flowchart showing the operation in "camera system check";

Fig. 24 is a flowchart showing the operation of "set abnormal data";

Fig. 25 is a flowchart showing the operation in "switching data processing";

Fig. 26 is a flowchart showing the operation in "operation selection"; and

Fig. 27 is a flowchart showing the operation in "mode selection".

The invention will be described in more detail below described in connection with the drawing.

A control circuit of the camera to which the display system according to the invention is applied will be described below with reference to FIGS. 1 and 4.

The camera 21 has an auto focus unit (AF), an automatic loading unit, rewinding and rewinding, an auto exposure unit (AE = auto exposure), etc., and its basic operation is carried out in substantially the same manner as in conventional ones Cameras running. The camera 21 is also provided on a pentagonal roof prism unit 21 a ( FIG. 4) with a dot liquid crystal display (LCD) 23 for displaying data or information about the camera.

The control circuit has a control microcomputer 39 for controlling the point LCD 23 and a central processing unit (CPU) 24 , which in turn is supplied with electrical voltage from a battery 25 via a controller 26 . The control circuit further includes a locking switch 28 , a light measuring switch 29 and a trigger switch (hereinafter referred to as the trigger) 30 . When the latch switch 28 and the light metering switch 29 or the trigger 30 are turned on, a P1 terminal of the CPU 24 is set to a low level, thereby starting a DC / DC converter 61 which supplies electrical power to each of the units. In Fig. 1, a large capacitance (capacitor) 27 is shown which is intended to counteract a fast drop of the voltage of the battery 25. Furthermore, a charge-coupled device (CCD) 31 is shown in FIG. 1 as an image sensor, a CCD control circuit 32 , a switch box 33 , a light-emitting diode 34 and a read-only memory (ROM) 35 in the lens. As shown in Fig. 1, a display box 36 contains row drivers 37 a and 37 b, a dot liquid crystal display (dot LCD) 23 and column drivers 38 a and 38 b. The LCD control microcomputer 39 is connected to the CPU 24 via a bus 40 and has a built-in display memory random access memory (RAM), which is designed to exchange data with a kon constants cycle to the column drivers 38 a and transmit 38 b and a timing signal for both line drivers 37 a and 37 b, followed by driving the dot LCD 23rd

From the CPU 24 , display data is transferred to the LCD control microcomputer 39 based on a transfer clock SCK1 via the bus 40 . The display data contains various information such as exposure mode Tv, Av, ISO and Xv.

Specifically, the display RAM of the LCD control microcomputer 39 converts the data transferred from the CPU 24 into display RAM data for display on the dot LCD 23 . In this case, data from a character generator 41 is used as needed.

The data of the character generator 41 is transmitted to the LCD control microcomputer 39 via a bus 42 based on a transfer clock SCK2. This data is then added to the display RAM data, producing final display RAM data. A display RAM bit of this data corresponds to a bit in the dot LCD 23 .

The display RAM data with a constant Zy klus to the column drivers 38 a and 38 b gnals transmitted by means of the signal generated by the LCD control microcomputer 39 Zeitgabesi. Module selection connections (chip select) CS0 and CS1 of the respective line drivers 37 a and 37 b are - as shown in FIG. 2 - connections for selecting which column driver 38 a or 38 b has written the data or should write the data .

Since the LCD control microcomputer 39 supplies an STB signal to the row driver 37 a or the row driver 37 b after the data is written in the column driver 38 a or 38 b, the column driver 38 a or the column driver 38 b generates data in accordance with a display for one line. This enables the row drivers are indexed 37 a or 37 b by one line, where possible by a display of a row on the dot LCD 23rd The repetition of this operation enables the display of all possible data on the point LCD 23 . In the drawings, data signal lines DB0 to DB7 are also shown.

Fig. 3 shows an example of the switch box with operating switches 51 to 56 and 76 and 77 ( Fig. 6) for the respective operation of the dot LCD 23. On the CPU 24 side, a pull-up resistor can be provided and be constructed in such a way that a voltage is only applied across it if a switch check is carried out.

The control microcomputer 39 is provided with a display subdivision device 71 , a subtitle changing device 72 , a subtitle selection device 73 , a full display device 74 and a screen switching device 100 . These devices each have functions via which they act on the point LCD 23 by means of the display RAM.

The display dividing means 71 serves to divide the dot LCD 23 into a plurality of areas (first area 23 a, second area 23 b, third area 23 c and fourth area 23 d, as shown in FIG. 8) and for displaying Subtitle data or information in each of these areas. Subtitle data or information is one that indicates a plurality of recording information by a plurality of subtitles, and the content of the subtitle data or information is described in great detail by detailed data or information that is subordinate information to the subtitle data or -information is available.

The subtitle changing means 72 has the function of switching the display of subtitle data or information on one screen by the operation of a corresponding switch when the subtitle data or information is not on the first, second, third and fourth screens of another Screen can be displayed because the number of subtitle data or information is larger than the number of areas of the screen to be divided by the screen dividing means 71 .

The subtitle selector 73 is for selecting either subtitle data or information displayed on the dot LCD 23 by the display dividing device when the corresponding switch is turned on.

The screen switching device 100 serves to display the detail data or information as subordinate data or information of the selected subtitle data or information on the dot LCD 23 by the full display device 24 when either subtitle data or information by the subtitle selector 73 are selected.

The full display device 74 has the function of combining each of the individual areas into a display based on the screen switching device 100 .

A specific display of data or information on the dot LCD 23 serving as a display device of the invention will now be described.

As shown in Fig. 4, the camera 21 has a camera housing 43 , which in turn is provided in its central portion with the pentagonal roof prism unit 21 a, which carries the point LCD 23 , with which the data or information through points display.

Fig. 5 is a plan view showing the screen of the dot LCD 23 when all the displays are on. In a central section of the screen, the expression "action", which indicates an "action mode", is shown in capital letters in a size which is larger than that of the other displays. Furthermore, the screen shows a symbol 45 which represents a "time of day synchronization mode", a symbol 46 which represents an "automatic lighting inhibiting mode", a symbol 47 which represents a "drive mode" and a symbol 48 which represents a "point Light measurement mode "represents. In the lower left corner of the screen are indications with the characters "MF", "EF", "PZ", "MEX" and "ISO". The character "MF" represents the "manual focus mode"; the symbol "PZ" represents the "motor zoom mode" (power zoom); and the character "MEX" represents "manual exposure". In the lower middle portion of the screen, a circle 49 denotes a film cartridge and the broken line denotes a film.

In the vicinity of the dot LCD 23 are a MODE switch 51 , a BACK switch 52 , operation switches 53 , 54 , 55 and 56 (information display switching means) for implementing setting operations, an UP switch 76 and a DOWN switch 77 (information display switching device).

These switches can also be used on any other section of the camera housing may be provided.

As shown in FIG. 6, the screen of the dot LCD 23 is divided into four areas, that is, the first area 23 a, the second area 23 b, the third area 23 c and the fourth area 23 d by the display dividing means 71 divided.

The first area 23 a changes its screen display in accordance with the operation of the operating switch 53 . The display on the screen of the second area 23 b is adjusted by the corresponding operating switch 54 . The third area 23 c can be adjusted with respect to its display on a screen by actuating the corresponding operating switch 55 . The display on the screen of the fourth area 23 d is adjusted by the corresponding operating switch 56 .

The displacement of the screen by operating the UP switch 76 and the DOWN switch 77 will be described with reference to FIGS. 7A to 8B.

FIG. 7A shows a display before operating the screen of the dot LCD 23 , which is divided into four areas by the display subdivider 71 . In this state, shown in FIG. 7A, the display dividing device 71 displays a symbol "P mode" in the first area 23 a, a symbol 57 for the flash mode in the second area 23 b, a sign "drive" (DRIVE) , which stands for the drive mode, in the third area 23 c and a symbol 58 for divided light measurement in the fourth area 23 d.

By turning ON the ON switch 76 in the state shown in FIG. 7A, the display of the screen changes to the display shown in FIG. 7B based on the subtitle changer 72 . In this state, a character "Xv" is displayed on the screen in the first area 23 a and the character "ISO" in the second area 23 b. In the third area a character "MULTI-EXP" is displayed and in the fourth area 23 d a character "AE-Lock" is displayed. In the above displays, the character "Xv" stands for a width or increment of the exposure change (exposure multiplication) at the time of a "MAB mode", the expression "MAB" meaning "multi-auto-limit". This "MAB mode" is a mode in which images are photographed in a given number and the exposure values are changed step by step. The "MULTI-EXP" sign indicates multiple exposure.

On the other hand, when the AB switch 77 is turned on in the state shown in FIG. 7B, the screen returns to the state shown in FIG. 7A. When the UP switch 76 is operated again in the state shown in FIG. 7B, the screen changes to the state shown in FIG. 7C. In this state, in the first region 23 a, a symbol "AF", which stands for an auto-focus mode, and in the second region 23 b, the "POWER ZOOM" to characters shown (POWER ZOOM is here that the zoom motorbe is exaggerated). The screen in the third area 23 d shows a character "ON", a symbol 60 which represents a buzzer setting mode, a character "P" and a symbol 59 . The fourth area 23 d shows an identifier 80 which represents a battery and a sign "Check" (Check stands for verification).

When the AB switch 77 is turned on in the state of FIG. 7B, the screen is changed to the state of FIG. 8A based on the subtitle changer 72 when a lens switch is set so that it is operated automatically. This screen is essentially the same as the pre-operation screen as shown in Fig. 7A, except for the display of an "M mode" in the first area 23a instead of the "P mode" and a symbol "ES" in the third area 23 c instead of the symbol "P". By turning ON switch 76 in the state shown in FIG. 8A, the screen returns to a display shown in FIG. 7B based on subtitle changer 72 .

When the lens switch is set to manual operation, operating the AB switch 77 in the display of FIG. 7B shifts the screen to the state of FIG. 8B based on the subtitle changing device 72 .

Operation in "Exposure Adjustment Mode" will now be described with reference to Figs. 9A to 9H.

Fig. 9A is a display on the screen before an operation when switched to a "lens auto mode". When the operation switch 53 is turned on or operated in the screen of FIG. 9A, the "P mode", which is displayed in the first area 23 a, is selected in the subtitle selector 73 , whereby its subordinate data or information tion are displayed in the corresponding areas on the screen indicating the setting of the "exposure mode" as shown in Fig. 9B.

In the screen shown in Fig. 9B are displayed in the first Be rich 23a, a sign "PROG NORMAL" and in the second region 23 b, a sign "PROG ACTION" and a symbol 81 that an action mode (program mode with priority for high shutter speed ) represents. The screen in the third area 23 c shows a character "PROG DEPTH" and a symbol 62 which represents a program mode with priority on depth of field, and the screen in the fourth area 23 d shows a character "EE".

By operating the operation switch 53 in the state shown in FIG. 9B is switched the divided into four sections dot LCD 23 in a full screen according to Fig. 9C based on the full display device 74. In this screen, detailed data or information related to the selected subtitle data or information is displayed by the full display device 74 on the basis of the screen switching device 100 , where the screen for setting a "normal program mode" is displayed.

When the operation switch 54 is turned on in the state shown in FIG. 9B, the four-divided dot LCD 23 is switched into a full screen according to Fig. 9D, on the basis of the full display device 74. This screen displays detailed data or information regarding the selected subtitle data or information by the full display device 74 based on the screen switching device 100 , thereby proceeding to a display screen for setting a "program mode 2 ".

By operating the operation switch 55 in the status shown in FIG. 9B, the dot LCD 23 , which is divided into four sections, is switched to a full screen shown in FIG. 9E based on the full display device 74 . In this screen, detailed data or information relating to the selected subtitle data or information is displayed by the full display device 74 based on the screen switching device 100 , thereby displaying the screen for setting a "program mode 3 ".

When the operation switch 56 is turned on in the state shown in FIG. 9B, the four-divided dot LCD 23 is switched into a full screen according to Fig. 9F, based on the full display device 74. This screen displays detailed data or information relating to the selected subtitle data or information by means of the full display device 74 on the basis of the screen switching device 100 , whereby a transition is made to a display in which a "shutter priority mode" can be set.

On the screen shown in FIG. 9F in an upper part of the screen, a mark "EE 250 F8.0" are and a Zei chen "TV?" shown below. The character "Tv" is an abbreviation of the expression "Time Value", which indicates the shutter speed or the exposure time.

When the UP switch 76 or the DOWN switch 77 are operated in the status shown in FIG. 9F, the screen goes to the display in FIG. 9G where a character "EE Tv 500?" is shown. From this state according to FIG. 9G, actuation of the UP switch 76 or the DOWN switch 77 leads to a screen according to FIG. 9H which has a character "EE 500 F8.0 Tv?" displays and queries whether the shutter speed setting to 500 is appropriate.

The operation of an "exposure adjustment mode" will now be described with reference to Figs. 10A to 10H.

FIG. 10A is a display on the screen of the dot LCD to work manually before operation when the lens is folded 23 turns. The character "M mode", which stands for a manual mode, is displayed in the first area 23 a and the symbol 57 for the flash operating mode is displayed in the second area 23 b. In the third area 23 c, the screen shows the character "DRIVE" (ie drive) in its central part as well as below it in smaller sizes the character "ES" and the symbol 59 . When the operation switch is operated in the status of FIG. 10A 53, is selected in the first region 23 a displayed "M mode" of the sub-title selection means 73, whereby the screen for adjusting the "exposure mode" ver provides, as shown in Fig. 10B.

On the screen shown in FIG. 10B, a mark "MANUAL ES" in two lines of the first region 23 a and a sign "MANUAL SYNCHRO" in two lines of the second region 23 are displayed b. Similarly, in the third area 23 c, a "MANUAL BULB" character is displayed in two lines of the upper and middle section as well as the "ES" character and the symbol 59 in the lower left corner. In the fourth area 23 d, the screen shows the number "250". In this display screen, when the BACK switch 52 is operated, the screen returns to the state shown in Fig. 10A.

When the operation switch 53 is operated in the state shown in Fig. 10B, the four-divided dot LCD 23 is moved to a full screen shown in Fig. 10C based on the full display device 74 by providing detailed data or information related to the selected subtitle data or information is displayed as "MANUAL 250", thereby creating a display screen for setting a "lens opening priority mode".

Operating the operation switch 54 from the state shown in FIG. 10B provides a full screen of the dot LCD 23 in a similar manner to operating the operation switch 53 , and the display with "MANUAL 250" is changed to the display "MANUAL 125" which As shown in Fig. 10D and a display screen for setting a "flash synchronization speed mode" lie fert.

When the dot LCD 23 of FIG. 10B of the operation switch 55 is operated on the display screen, the display screen changes to the display of FIG. 10E which displays a "MANUAL BULB" character, thereby giving a display screen for setting a "program code" us ".

By operating the operation switch 56 in the state shown in FIG. 10B, the display screen is changed to a full screen according to FIG. 10F, in which a character "MANUAL 250 Tv?" is displayed, and thereby a display screen for setting a "lock priority mode" is generated.

When the UP switch 76 or DOWN switch 77 is operated in the "shutter priority mode", the display goes to the display screen of FIG. 10G, on which a character "MANUAL Tv 500?" is shown. A further res actuation of the UP switch 76 or the DOWN switch 77 leads from the display according to FIG. 10G to a display screen according to FIG. 10H, in which a character "MANUAL 500 Tv?"<Is displayed, with which it is queried, whether the shutter speed setting to 500 is correct.

Figs. 11A to 11G describe an operation of the "flash operation" mode.

If the lens has been placed in an automatic position, the screen of the point LCD 23 changes to a screen according to FIG. 11A, on which the character "P mode" in the first area 23 a, the symbol 57 in the second area 23 b, the character "DRIVE" in the third area 23 c and the symbol 58 , which represents the light measurement subdivision, are displayed in the fourth area 23 d.

An actuation of the operating switch 55 from this state according to FIG. 11A leads to the subtitle selection device 73 selecting the “DRIVE mode” in the third area 23 c, as a result of which subordinate data or information relating to the “DRIVE mode” according to FIG . 11B are displayed.

Specifically, a character "AUTO" and the symbol 57 are displayed on the screen in the first area 23 a of the dot LCD 23 and a character "SYNCHRO" as well as symbols 45 and 57 in the second area 23 b, the display in the fourth Area has disappeared. When the BACK switch 52 is operated in this status, the display screen returns to the screen shown in FIG. 11A.

Operation of the operation switch 53 in the status shown in FIG. 11B moves the four-part display screen to a full screen shown in FIG. 11C based on the full display device 74 . In the screen of Fig. 11C, a character "PROG 250 F8.0" is displayed by the full display device 74 based on the screen switch device 100 , thereby setting a display screen for setting an "automatic flash lighting mode". Note that the screen shown in FIG. 11C indicates a status before a store is completed. When loading is finished in this state, the screen changes to the screen of FIG. 11B, in which the icon 57 is displayed in a smaller size at the top of the screen of FIG. 11C.

When the operation switch 54 is operated in the status shown in FIG. 11B, the full display device 74 changes the screen to a status shown in FIG. 11E. This screen displays a character "PROG 250 F8.0" as well as symbols 45 and 47 by means of the full display device on the basis of the screen switchover device 100 and serves as a display screen for setting the "daylight synchronization mode" before the loading is completed. When loading in said screen is completed, the icon 57 is displayed in a smaller size in addition to the screen display shown in FIG. 11E, as shown in FIG. 11F.

If the operating switch 55 is operated from the display according to FIG. 11B, the full display device 74 changes the screen into a display screen according to FIG. 11G, which has the character "PROG 250 F8.0" and the symbol 46 by means of the full display device 74 on the basis of the screen switching device 100 , whereby a display screen for setting the "automatic lighting inhibiting mode" is provided.

The operation of the "drive mode" (DRIVE mode) will be described below with reference to FIG. 12.

If the lens is set to "automatic", the display screen immediately goes to the state according to FIG. 12A, in which the character "P mode" in the first area 23 a, the symbol 57 in the second area 23 b, the character "DRIVE" in the third area 23 c and the symbol 58 in the fourth area 23 d who the.

An operation of the operation switch 55 in this state changes the display screen to a full screen according to FIG. 12B, in which detailed data or information is displayed in each area by means of the subtitle selector 73 which is subordinate to the subtitle data or information "DRIVE" that were previously displayed in the third area 23 c of the screen. In particular, a symbol 47 , which indicates a "single image recording mode", is indicated in the first region 23 a and a symbol 63 , which indicates a "continuous recording mode", is indicated in the second region 23 b. A character 64 indicating a "self-timer mode" is displayed in the third area 23 c and a symbol 65 indicating the "MAB mode" is displayed in the fourth area 23 c.

By actuating the operating switch 53 in the state according to FIG. 12B, the full display device 74 changes the display screen to a full screen according to FIG. 12C, in which a character "PROG 250 F8.0" and the symbol 47 are opened by means of the full display device 74 the base of the screen switching device 100 are displayed, whereby a display screen is provided, which is used to set the "frame recording mode".

When the operation switch 54 is operated in the state shown in FIG. 12B, the full display device 74 changes the display screen to a screen shown in FIG. 12D, which serves as a display screen for setting the "continuous shooting mode". The display on the screen of FIG. 12D is substantially the same as that of FIG. 12C, except that the symbol 47 in the screen of FIG. 12C is converted to the symbol 63 .

By operating the operation switch 55 in the stand according to Fig. 12B, the full-Einrich change processing 74 the display screen in a full screen according to Fig. 12E, which serves as a display screen for setting the "self-timer mode". The display on the screen of FIG. 12E is substantially the same as that of FIG. 12D, except that the symbol 63 on the screen of FIG. 12D is changed to the symbol 64 .

Pressing the operation switch 56 in the state shown in FIG. 12B changes the four-divided screen to a full screen shown in FIG. 12F based on the full display device 74 , with characters "PROG", "Xv SET?", The symbol 63 for the "MAB mode" and the character "EF" are displayed, and thereby serves as a display screen for setting the "MAB mode".

When a "± EF" switch (not shown) and the UP switch 76 or the DOWN switch 77 are operated in the status shown in FIG. 12F, the display screen changes to a display screen with characters "MAB" and "22 ^EXP " in its upper section in smaller sizes and with a sign "± 0.5?" in its central area in a larger size, whereby a position of a step size of the exposure change in the "MAB mode" is requested.

The operation of the "light measuring mode" will now be described in connection with Figs. 13A to 13D.

When the lens is set to "automatic", the display screen shows a display as shown in FIG. 13A before operation. When the operation switch 56 is operated in the status shown in FIG. 13A, the sub-title selector 73 selects the "light measuring mode" and the display screen is divided into two sections, a lower one and an upper one as shown in FIG. 13B. On the one hand, a character "MULTI" is displayed in the upper section, which shows that the upper section is set as a display screen for setting an "under divided light measuring mode". On the other hand, a character "SPOT" is displayed on the screen in the lower section, indicating that the lower section is set as a display screen for setting a "spot light measuring mode".

When the operation switches 53 and 54 are operated simultaneously in the status shown in FIG. 13B, the full display device 74 changes the display screen to a full screen shown in FIG. 13C. This screen shows the character "PROG 250 F8.0" and the symbol 47 by means of the full display device 74 on the basis of the screen switching device 100 , whereby the display screen is used to set the "divided light measurement mode".

When the operation switches 55 and 56 are operated simultaneously in the state shown in FIG. 13B, the full display device 74 changes the display screen to a full screen shown in FIG. 13D, which indicates the symbol 48 indicating the "spot light measurement mode" in smaller letters at the top of the screen of Fig. 13C, whereby the display screen is used to set the "point light measurement mode".

The operation of the "Xv mode" will now be described with reference to Figs. 14A to 14C.

In a state in which the lens is automatically fo fussed, the display screen of the dot LCD 23 has the character "Xv" in its first region 23 a before operation, the character "ISO" in its second region 23 b, the Character "MULTI" in its third area 23 c and the character "AE LOCK" in its fourth area 23 d appear as shown in Fig. 14A.

If ter 54 is turned on in the state shown in Fig. 14A of the operation sound, subtitles-off selects selection device 73, the character "Xv mode", which is displayed in the first region 23 a, whereby the four-split screen in a full screen according to Fig . 14B is adjusted, and on the basis of the full display device 74. This screen shows the characters "PROG 250 F8.0" in its upper section, "Xv SET?" in its middle section and "EF" (short for exposure compensation) in its lower left corner. When the BACK switch 52 is operated in this state, the display returns to the state shown in FIG. 14A. When an "EF switch" (not shown) in the status shown in Fig. 14B is operated, the screen switches to a display screen shown in Fig. 14C which has a character "-2.5?" indicates whether an exposure correction value (Xv) of -2.5 is appropriate.

Operation of an "ISO mode" will now be described with reference to Figs. 15A to 15C.

When the lens is set to focus automatically, the dot LCD 23 provides a display as shown in Fig. 15A before operation. Pressing the operating switch 54 in this state indicates a currently set ISO value with a question mark (?) On the screen. Further, when the UP switch 76 and DOWN switch 77 are appropriately switched, the character "ISO" is displayed in a lower middle portion of the screen as shown in FIG. 15B when found out, that the set ISO value differs from the ISO value of the film used. If the set ISO value is the same as that of the film used, the "ISO" character is not displayed in the lower middle portion of the screen. By operating the EF switch, which is not shown, and the UP switch 76 or the DOWN switch 77 in this state, the display changes to a screen according to FIG. 15C and a character "ISO 200?" is displayed in two lines in large size, asking whether the ISO value of 200 is appropriate.

The operation of the "multiple exposure mode" will now be described with reference to Figs. 16A to 16C.

In a state in which the lens automatically focuses, the display screen of the dot LCD 23 shows the character "Xv" in the first area 23 a, the character "ISO" in the second area 23 b, the character before operation "MULTI" in the third area 23 c and the character "AE LOCK" in its fourth area 23 d, as shown in Fig. 16A.

If switch 55 is operated in this state, as shown in FIG. 16A of the operation, the full display changes 74 the dot LCD 23 in a full screen, as shown in Fig. 16B, in which a character "MULTI EXP 5?" is displayed in two lines, requesting the setting of the "number of exposures at the time of multiple exposure". By operating the BACK switch 52 in this state shown in FIG. 16B, the display screen returns to the state shown in FIG. 16A. When an ME switch (not shown) and the UP switch 76 or DOWN switch 77 are operated in the state shown in FIG. 16B, the display screen shows the characters "PROG 250 F8.0", "EXP SET 5? " and "MEX" as shown in Fig. 16C.

The operation of the "AE-LOCK mode" (auto exposure lock mode) will now be described with reference to Figs. 17A to 17E.

When the lens is switched to an automatic mode, the display of the dot LCD 23 is converted to a display screen as shown in FIG. 17A, which has the character "Xv" in the first area 23 a, the character "ISO" in the second area 23 b, the character "MULTI EXP" (abbreviation for multiple exposure) in two lines in the third area 23 c and the character "AE LOCK" in two lines of the fourth area 23 d indicates. When the operation switch 56 is operated in the state of FIG. 17A, the subtitle selection means the "AE LOCK mode" mark selects 73 of which is d at the fourth region 23, so that the screen switching means 100, the On show the dot LCD 23 can be converted into a display screen, as shown in Fig. 17B, and the character "AE. LOCK" in the first area 23 a, the character "AE" in the second area 23 b and the character "AE" in the third area 23 c indicates. In this case, nothing is displayed in the fourth area 23 d. When the operation switch 53 is operated in the state shown in FIG. 17A, the display of the dot LCD 23 by the full display device 74 changes to a display on the screen shown in FIG. 17C which shows the character "PROG 250 F8.0 "in its upper section and the sign" AE LOCK "in its middle section, and a display screen for setting the" AE-LOCK normal mode ".

If ter 54 is operated in the state shown in Fig. 17B, the operation sound, then the full change device 74, the display of the dot LCD 23 in a to see the screen of FIG. 17D, the character "PROG 250 F8.0" in displays its upper section and the character "AE LOCK << in its middle section and indicates a display screen for setting the" AE-LOCK normal mode ".

If ter 55 is operated in the state shown in Fig. 17B, the operation sound, the display of the dot LCD 23 in a display changes according to FIG. 17E, in order, on the basis of the full display device 74, and displays the "AE LOCK mark "in a middle section of the screen and the symbol" PROG 250 F8.0 "in an upper section. This display provides a display screen for setting the "AE LOCK mode".

The operation of the "AF mode" will now be described in connection with Figs. 18A to 18H.

When the lens is set in an automatic mode, the display of the dot LCD 23 is switched to a display screen as shown in FIG. 18A, the "AF" in the first section 23 a, the "POWER ZOOM" in two lines of the second Section 23 b, the sign "ON" and a symbol 60 for a buzzer mode in the third area 23 c and the sign "CHECK" and the symbol 80 for the battery symbol in the fourth area 23 d.

If it is operated in the status of FIG. 18A, the operation switch 53, the subtitle Auswahleinrich the "AF mode" mark selects tung 73 of which is displayed in the first region 23 a, so that the screen-Umschal teinrichtung 100, the display of the dot LCD 23 can switch to a display screen according to FIG. 18B, on which the character "AE. SINGLE" in two lines of the first area 23 a, the character "AF SERVO" in two lines of the second area 23 b and that Sign "AF OFF" can be displayed in two lines of the third area 23 c. In this case, nothing is shown in the fourth area 23 d.

When the operation switch 53 is operated in the state shown in FIG. 18B, the full display device 74 changes the screen of the four-divided dot LCD 23 to a full screen shown in FIG. 18C. The screen has a display of a character "AF SINGLE SET" in three lines. When a predetermined period of time has passed in this status, the display on the screen changes to another as shown in FIG. 18D, which displays the character "PROG 250 F8.0", which indicates a display screen for setting the "AF SINGLE mode" .

When the operation switch 54 is operated in the state shown in FIG. 18B, the full display device 74 changes the screen of the four-divided dot LCD 23 to a full screen shown in FIG. 18E. The screen has a display of a character "AF SERVO SET" in three lines. When a predetermined period of time has passed in this state, the display on the screen changes to a display as shown in FIG. 18F, which displays a character "PROG 250 F8.0", which indicates a display screen for setting the "AF SERVO mode".

If the operating switch 55 is actuated in the state according to FIG. 18B, the character "AF OFF SET" is selected in the third area 23 c of the four-point LCD 23 and the full display device 74 changes the display to a full screen according to FIG. 18G. The screen has a display of an "AF OFF SET" character in three lines. After a predetermined period of time has elapsed in this state, the display on the screen changes to a display according to FIG. 18H, which has the character "PROG 250 F8.0" in an upper section of the screen and the character "MF" in a lower left Section displays what indicates a display screen for setting the "manual focus mode".

Operation of the "POWER ZOOM mode" (motor zoom mode) will now be described with reference to Figs. 19A to 19E.

If the lens is set in an automatic mode, the display of the dot LCD 23 is switched to a display screen according to FIG. 19A, which shows the character "AF" in the first area 23 a, the character "POWER ZOOM" in two lines second area 23 b, the sign "ON" and the symbol 60 for the buzzer mode in the third area 23 c and the sign "CHECK" and the symbol 80 for the battery symbol in the fourth area 23 d.

When in the state shown in Fig. 19A of the operation switch 54 is operated, the subtitle selection means the "POWER ZOOM" mark selects 73 of which is indicated b in the second region 23, whereby the sub-data or information of the selected subtitle data or -information on each of the four areas of the dot LCD 23 are displayed as shown in Fig. 19B.

In detail, the display according 19B shows. An Zei chen "FIX" (viewfinder image-down mode) in the first Be rich 23 a, an icon 66 for a "power zoom mode 2" (Fig. 19D) in the third region 23 c, and a symbol 67 for a "motor zoom mode 3" ( FIG. 19E) in the fourth region 23 d. In this case, nothing is displayed in the second region 23 b.

When the operation switch 53 is operated in the state shown in FIG. 19B, the first area 23 a is selected according to this operation switch by the subtitle selector 73 and the full display device 74 changes the four-divided screen of the dot LCD 23 to a full screen around, as shown in Fig. 19C and which the character "PROG 250 F8.0" in an upper section, the symbol 66 for the motor zoom mode in a left middle section and a sign "PZ1" (POWER ZOOM 1 = Motorzoom 1) displays in a lower section. This display provides a display screen for selecting a "viewfinder image selection mode 1".

In the state shown in Fig. 19B when the operation switch 55 is operated, the first portion 23 a corresponding to this operation switch is selected on the basis of the subtitle selection means 73 and the Vollanzeige- device 74 switches the four-split screen of the dot LCD 23 in a full-screen FIG. 19D which is substantially the same ads has as what fert in Fig. 19C, with the exception of a character "PZ2" in the lower portion of the screen a display screen for selecting a "finder image selection mode 2" lie.

When in the state of FIG. 19B of the operation switch 56 is operated, the fourth region 23 is d by the subtitle selection means 73 is selected to bring about a display on the screen, as shown in Fig. 19E, which substantially the same display as shown in FIG. 19C provides with the exception of a character "PZ3" (POWER-ZOOM 3), and thus a display screen it is for setting a "finder image selection mode 3".

The operation of a "buzzer ON / OFF operation mode" will be described in connection with Figs. 20A to 20C.

If the lens is switched to an automatic mode, the display of the dot LCD 23 is switched to a display screen according to FIG. 20A, which shows the character "AF" in the first area 23 a, the character "POWER ZOOM" in two lines of the second Area 23 b, the sign "ON" and the symbol 60 for the buzzer mode in the third area 23 c and the sign "CHECK" and the symbol 80 for the battery symbol in the fourth area 23 d.

When the operation switch 55 is operated in the state shown in FIG. 20A, the subtitle selector 73 selects the subtitle data or information shown in the third area 23 c, and the screen switching device 100 changes the display of the four-division screen of the dot LCD 23 in a two-part divided screen shown in FIG. 20B, the symbol 60 for a "Summerbe operating mode" and a character "bUZZER oN" (buzzer oN) in an upper portion of the display on the screen as well as the Icon 60 for "buzzer operating mode" and a sign "BUZZER OFF" in a lower portion of the display of the screen.

When the operation switches 53 and 54 or the operation switches 55 and 56 are operated in the state shown in FIG. 20B, the full display device 74 changes the display on the double-divided screen to a full screen shown in FIG. 20C, on which the symbol " PROG 250 F8.0 "is displayed and this is used to set whether the buzzer should produce a sound or not.

The operation of the "battery voltage check mode" will be described below with reference to FIGS. 21A to 21D.

The display before operation results on the four-fold screen of the point LCD 23 as shown in FIG. 21A and shows the character "AF" in the first area 23 a, the character "POWER ZOOM" in two lines of the second area 23 b , the character "ON" and the symbol 60 for operating the buzzer in the third area 23 c and the character "CHECK" and the battery identification in the fourth area 23 d.

By operating the operation switch 56 in the state shown in FIG. 21A, the full display device 74 changes the display of the four-divided screen of the dot LCD 23 to a full screen, and the screen switching device 100 changes the display of FIG. 21A to a display of the Battery identifier 80 , which is filled in completely dark, as shown in FIG. 21B, when the state of charge of the battery is full. A "OK" sign is displayed in a lower section of the screen below the battery identifier.

If the charge level of the battery is low, the display changes through the screen switching device 100 into a display according to FIG. 21C, in which the battery identifier 80 is only filled in half dark, and a character "LOW" (low) is displayed .

If the state of charge is too low to guarantee normal operation of the exposure control, the screen switching device 100 changes the display according to FIG. 21D, in which the battery identifier 80 is not filled in, and a character "EMPTY" (empty) in one lower section below the battery identifier is displayed.

The foregoing description has been directed to how the screen of the dot LCD 23 is displayed. The operation of the display control of the screen of the dot LCD 23 with time related to the operation of the camera will be described in connection with flowcharts shown in FIGS . 22 to 29.

First, a main program will be described with reference to FIG. 22.

As soon as a main switch (not shown) is switched on, it is determined in step S 1 whether the locking switch 28 is switched on. If this is switched on, the program goes to step S 2 . If it is determined in step S 1 that the locking switch 28 is not turned on, the program goes to step S 11 .

In step S 2 it is set that the trigger 30 and the light measuring switch 29 may interrupt (may give an in terrupt), followed by step S 3 , in which a subroutine for checking the camera system is carried out.

In step S 4 , it is determined whether the camera system is abnormal based on the execution of the camera system check subroutine. If the query in step S 4 determines that the system is functioning normally, the program proceeds to step S 5 . Otherwise, the program proceeds to step S 10 .

In step S 5 , a subroutine for the switch data processing is executed to thereby display the data information on the screen of the dot LCD 23 . After the switch data processing in S 5 is carried out, the program proceeds to step S 6 followed by steps S 7 , S 8 and S 9 . In other words, in step S 6, interrupt processing is performed in the LCD control microcomputer 39 , the timer is set to 125 ms in step S 7 , and a loop is started once every 125 ms in step S 8 , followed by a step S 9 , at which the program stops to allow a signal to be interrupted by the timer. In step S 10 , a subroutine for abnormal data is executed to display data about the abnormalities on the screen LCD 23 , after which the program proceeds to step S 6 .

If the result of the query in step S 1 indicates that the lock switch 28 is turned off, as previously described, the program proceeds to step S 11 , in which interruptions by neither the light meter 29 nor the trigger 30 are permitted from a step S 12 , in which a subroutine is executed, in which lighting-off data are set in order to switch off the background lighting of the display of the point LCD 23 . The program then continues with step S 6 .

The camera system check routine of step S 3 will now be described with reference to the flowchart of FIG. 23.

First, it is determined in step S 13 whether there is an error on the CPU 24 side when loading a film. Then, the program proceeds to step S 14 when the result in step S 13 indicates that no error was found on the CPU 24 side when the film was loaded. If an error has occurred, the program proceeds to the step S 24th

After step S 13 , it is determined in step S 14 whether there is an error with regard to the state of charge or the voltage level of the battery. If no error is found, the program proceeds to step S 15 . If an error is found, the program proceeds to step S 24th

In step S 15 it is determined whether any non-normality of the film used is present such as a film used for old. If the result shows no abnormality, the program proceeds to step S 16 ; in the other case with step S 27 .

In step S 16 , it is determined whether fewer than five images of the loaded film have not been photographed. If five or more pictures are free, the program goes to step S 17th Otherwise to step S 30 .

In step S 17 , other non-normalities are checked regarding the function of the camera. The program then proceeds to step S 18, in which it is determined whether any other non-normality was found. If no abnormality is found, the program goes to step S 19 ; otherwise to step S 20 . In any case, the program returns after steps S 19 or S 20 .

In step S 21 , a query is directed to the user "user confirmation 1?". When the screen provides an "error" indication, that is, an indication indicating the error and the user thereafter turning on a confirmation switch which is different from the indication on the screen, or after a predetermined period of time has elapsed after the indication, the driver drives Program flow with step S 22 in which "non-normal data 1" are deleted, followed by step S 14 . If the user operates the correct confirmation switch according to "User confirmation 1", the process goes to step S 23 , in which "abnormal data 1" is set; the program continues here with step S 14 .

In step S 24 , a "user confirmation 2" is requested. If there is an error indicating display on the screen of the dot LCD 23 and the user operates the confirmation switch or the predetermined time has passed after the display, the program proceeds to step S 25 , in which "abnormal data 2 is followed by proceeding to step S 15 are "released. In step S 24 if no Ad ge of "user confirmation 2" is present, the Pro driving program proceeds to the step S 26, in the "non-normal data 2" are set, whereby these norma le indicator is not displayed on the screen. From this it is to step S 15th

In step S 27 , a "user confirmation 3" is checked. If an "error" indication to the dot LCD is present 23 and the confirmation switch after a Bestä confirmation by the user is operated or has expired before passed period of time after the display, the program proceeds to the step S 28 proceeds in which " abnormal data 3 "are released. The program then continues with step S 16 . As long as the "user confirmation 3" is not displayed on the dot LCD 23 , the program proceeds to step S 29 , in which the "abnormal data 3" is set; then the program proceeds to step S 16th

In step S 30 , "user confirmation 4" is checked. If there is an "error" indication on the screen of the dot LCD 23 and the confirmation switch is operated after the user confirms it or after a predetermined period of time has elapsed, the program proceeds to step S 31 , in which " abnormal data 4 "are released, after which step S 17 is continued. As long as the "user confirmation 4" is not executed in step S 30 , the program proceeds to step S 32 , in which the "abnormal data 4" is set, due to such an abnormal condition on the screen of the dot LCD 23 is displayed. After that, the process continues with step S 17 .

With reference to FIG. 24, the subroutine "set abnormal data" according to step S 10 will be described.

If it has been determined in step S 4 that there is a non-normality in the camera system and the non-normal data has been carried out, it is determined in step S 33 whether "non-normal data 1" is present.

If the "abnormal data 1" is present in step S 33 , the program proceeds to step S 35 . On the other hand, if it is determined in step S 33 that there is no "abnormal data 1", the program proceeds to step S 34 where "point LDC data" is set and the screen displays a warning that this is Lens is faulty.

In step S 35 , it is determined whether "abnormal data 2" is present. If so, the program goes to step S 36 . If not, go to step S 37 . In step S 36 , the "point LCD data" are set, which provides a display which indicates a non-normality with respect to the state of charge of the battery or its voltage.

In step S 37 , it is determined whether the "non-normal data 3" is present. If the result is positive, that is to say “abnormal data 3”, the program proceeds to step S 38 . If the result is negative, go to step S 39 . In step S 38 , the "dot LCD data" is set, indicating on the screen that the film used is too old.

In step S 39 , it is further checked whether the abnormal data 4 is present. If so, the program proceeds to step S 40 ; if no, to step S 41 . In step S 40 , the point LCD data is set, where the number of still unphotographed images of the film is displayed. In step S 41 , a subroutine for an “other data record” is executed.

The subroutine for the "switch data processing" according to step S 5 will be described below with reference to the flowchart of FIG. 25.

In step S 43 an interruption inhibition is carried out, followed by step S 44 , in which the data required for the subsequent check are entered from the CFU 24 . In step S 45 after step S 44 , it is determined whether the display on the screen is to be turned off. If not, the program proceeds to step S 46 . If yes, to step S 54 .

In step S 46 , which follows step S 45 , a check is carried out to determine whether anything is normal in the camera. If the result indicates that the camera is operating normally, the program proceeds to step S 47 . If it is determined that something is abnormal in the camera, the program proceeds to step S 58 .

In step S 47 , it is further checked whether a command to display the setting of the recording mode has been given. If so, the program proceeds to step S 48 ; if no, with step S 59 .

In the step S 47 following step S 48 is asking abge whether a command to show from the mode switch 51 of the settings has been issued. If it is determined in step S 48 that the command comes from the mode switch 51 , the program proceeds to step S 50 . In the other case with step S 49 , in which the data relating to the operation of the display is decoded.

In step S 50 , which follows step S 48 , the data relating to the display related to the photographing is decoded. This data is decoded and the decoded data is output to the column drivers 38 a and 38 b in step S 51 , after which in step S 52 the data relating to photography are displayed on the screen of the dot LCD 23 . Then the program proceeds to step S 53 , in which the "interruption inhibition" which was carried out in step S 43 is withdrawn.

In step S 54 , the data from the switching off of the point LCD 23 is decoded and in the subsequent step S 55 , these data are output to the LCD column drivers 38 a and 38 b. In the subsequent step S 56 , the display of the dot LCD 23 is switched off, and then in step S 57 the "interruption inhibition" which has been set in step S 43 is canceled.

In step S 59 , which follows step S 47 , a query is made as to whether a command for displaying the setting of the operating mode has been issued. If so, the program goes to step S60 . If the result of step S 59 indicates that the command should not be issued, the program proceeds to step S 64 .

In step S 60 , it is determined whether the mode switch 51 is turned on, and if so, the data relating to the operating data are decoded in step S 61 , after which the process proceeds to step S 51 . If it is determined in step S 60 that the mode switch 51 is not turned on, the program proceeds to step S 62 .

In step S 62 , it is determined whether the BACK switch 52 is turned on. If so, the program proceeds to step S 63 , in which the data relating to the display of the photograph is decoded, after which the process proceeds to step S 51 . If it is determined in step S 62 that the BACK switch 52 is turned off, the program proceeds to step S 91 in which a subroutine for "operation selection" is executed, after which the process proceeds to step S 51 .

In step S 64 , the "mode display" is checked. If it is executed, the program goes to step S 65 ; in the other case to step S 67 , in which a subroutine for "data setting" is executed, after which the program continues with step S 51 . In step S 65 , a query is made as to whether the BACK switch 52 is switched on. If this is switched off, the program proceeds to step S 66 , in which a subroutine for "mode selection" is executed, followed by step S 51 . In the other case, the program proceeds to step S 68 , in which the data relating to the operating display or the operation of the display are decoded, after which it proceeds to step S 51 .

The subroutine for the "operation selection" will be explained below with reference to FIG. 26.

In step S 69 , a query is made as to whether “operating display 1” has been carried out. If so, the program proceeds to step S 70 ; otherwise, if "operation display 1" is not executed, with step S 73 .

In step S 70 , a query is made as to whether the UP switch 76 is switched on. If not, the program proceeds to step S 71 . If so, with step S 76 .

In step S 71 , it is determined whether the AB switch 77 is switched on. If not, the program proceeds to step S 72 , in which the data relating to "operating display 1" is decoded, followed by a return to the program flow. If the result in step S 71 is yes, the program proceeds to step S 79 .

In step S73 , it is determined whether the data relating to the "operation display" is to be executed. If so, the program proceeds to step S 74 . In the other case with step S 77 .

In step S 74 , a query is made as to whether the UP switch 76 is switched on. If so, the program proceeds to step S 79 , which will be described later. If the result is negative, the program proceeds to step S 75 , in which an inquiry is made as to whether the DOWN switch 75 is switched on. If so, the program proceeds to step S 72 . In the other case with step S 76 , in which the data are decoded which relate to the "Betriebsanzei ge 2". Then the program returns to the normal program flow.

In step S 77 it is determined whether the UP switch 76 is switched on. If so, the program proceeds to step S 72 , in which the data relating to the "operation display 1" is decoded. If the result in step S 77 is negative, the program proceeds to step S 78 , in which it is determined whether the DOWN switch 77 is on. If so, the program proceeds to step S 76 . In the other case to step S 79 , in which the data relating to the "operating display 3" are decoded. The program then returns.

Next, referring to FIG. 27, the Un terprogramm for the "selection mode" in step S 66 described below.

In step S 80 whether the drive switch 51 (hereinafter called drive switch 51) is detected, is on. If so, the program proceeds to step S 82 ; if not, with step S 81 , in which a subroutine for selecting other modes is executed.

In step S 82 , it is determined whether the operation switch 53 is turned on. If so, the program proceeds to step S 83 , in which the data relating to the frame recording mode is decoded or displayed. The program then returns. If the result of step S 82 is no, the program proceeds to step S 84 .

In step S 84 , it is determined whether the operation switch 54 is turned on. If so, the program goes to step S85 , in which the data relating to the "continuous recording mode" is displayed, whereupon the program returns. If the result of step S 84 is negative, the program proceeds to step S 86 .

In step S 86 , it is determined whether the operation switch 55 is turned on. If so, the program proceeds to step S 87 , in which the data relating to the "self-timer mode" are displayed, whereupon the program returns. If the result in step S 86 is negative, the program proceeds to step S 88 , in which it is determined whether the operation switch 56 is on. If so, the program proceeds to step S89 , in which the data relating to the MAB mode are displayed, after which the program returns. If the result of step S 88 is negative, the program proceeds to step S 90 .

In step S 90 , the data relating to the "drive mode" are displayed and the program returns here.

Although the display system according to the invention is exemplary described on a conventional still camera , it goes without saying that he display system according to the invention on other camera types such as electronic still cameras and video cameras can be applied.

Claims (14)

1. Display system for a camera for displaying recording data or information relating to the camera on a display unit which is arranged in a main housing of the camera, characterized in that the recording data or information in subtitle data or information by a A plurality of subtitles is to be displayed and is divided into subordinate data or information subordinate data or information, and that the display system has an information display switching device for selecting and displaying the subtitle data or information and the subordinate data or information on the display unit. 2. Display system according to claim 1, characterized records that the subtitle data or the sub title information is each piece of information, which are obtained by dividing the recording media or information in several and under different types of data or information, and that the subtitle data formation contain data or information that the subtitle data or the subtitle information are subordinate. 3. Display system according to claim 1 or 2, marked net by a display dividing device for Divide the display unit into a variety  of sections and to display the subtitles and the subtitle information on each of the Sections. 4. Display system according to claim 3, characterized records that the number of subtitle data or the subtitle information is larger than the type number of sections by the display sub-section device divided display unit. 5. Display system according to claim 4, characterized by a subtitle changing facility for Change the subtitle, the number of subtitles title data or information is larger than that of the sections. 6. Display system according to one of claims 3 to 5, characterized in that a variety of Un title data or subtitle information a plurality of the divided sections for are displayed at the same time. 7. Display system according to claim 5 or 6, characterized ge indicates a date or information the variety of subtitle dates formations subordinate data or In formation on the divided sections of the Display by operating the information display Switching device instead of subtitle data or the subtitle information is displayed right before operating the information display Switching device was displayed. 8. Display system according to one of claims 3 to 7, characterized by a full display facility to display a full screen on the through  divided the display dividing means Display unit. 9. Display system according to claim 8, characterized by a subtitle selector choose from either the subtitle dates or the Subtitle information by the display below dividing device is displayed. 10. Display system according to claim 9, characterized by a screen switching device for displaying of data or information that subtitles the subordinate to the subtitle information are from the subtitle selector on the display unit via full display on direction are selected when the subtitles are off selector either the subtitle data or selects the subtitle information. 11. Display system according to one of claims 1 to 10, characterized in that the Informationsan show switching device from an OPEN switch, an AB switch and an operating switch consists. 12. Display system according to one of claims 3 to 11, characterized in that the display unit has a dot liquid crystal display and in is divided into four sections, the first second, third and fourth area defined are. 13. Display system according to one of claims 3 to 12, characterized in that the Informationsan show switching device is designed, each of  divided sections of the ad speak. 14. Display system according to one of claims 3 to 13, characterized in that the display unit contains a dot liquid crystal display and in is divided into two sections by the An show subdivision device as a first and a second section are defined.