JPS6361236A - Data insert-photographing device for camera - Google Patents

Abstract

PURPOSE:To drive the title device by synchronizing with winding or rewinding of a film, and to always write a data character in a correct direction, by plural pieces of light emitting elements in the upper and the lower directions of a camera, and selecting the element to be used, in accordance with an image pickup direction of the camera. CONSTITUTION:Plural light emitting elements (a)-(y) are placed on an image pickup screen 100 of a camera having a data insert-photographing function, and these elements (a)-(y) are arranged in the vertical direction against a winding direction A of a film. By an exposure controlling circuit 4 of a driving circuit of this camera, a depressed state of a release switch 1 is detected, and inputted to a winding controlling circuit 5 and a buffer 12. Also, the number of opening and closing of a switching 2 which is opened and closed by synchronizing with a rotation of a sprocket of the camera is counted by a counter 11, and the time immediately before starting a winding operation, from a time counting circuit 6 is applied to the buffer 12. An output of this counter 11 is inputted in parallel to a decoder 13, and transistors 100-124 for controlling the lighting of the elements (a)-(y) are selected by an output from the buffer 12.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to data imprinting of a camera.

<Prior Art> Various mechanisms for imprinting data such as the date onto film have been proposed or implemented in the past, and most of them are of the type that imprints data when the film is stationary; The device was equipped with light emitting elements for the number of characters necessary for imprinting. However, with the above-mentioned type, the number of wires connected to the light emitting elements for the plurality of characters is large (which makes it extremely difficult to implement in a camera with limited space. As an alternative to the above-mentioned type, a plurality of light emitting elements are arranged vertically in a row, and character data is captured by driving the light emitting elements in synchronization with the winding or rewinding of the film. is proposed.

For example, FIG. 5(a) shows a conventional example, in which seven light emitting elements a to g are arranged in a line in the vertical direction of the camera at a position corresponding to the lower right corner of the photographing screen 100.
During winding or rewinding of the film, the light emitting element a''
-g, data characters are formed by driving predetermined light emitting elements.

However, since the data characters are sequentially recorded in the running direction of the film, when shooting with the camera in the horizontal position, the character placement relative to the screen orientation is appropriate (5th
(See Figure-(b)) When shooting in a vertical position, the camera is placed at an angle of 90° with respect to the screen orientation (5th
(See Figure 1-(C)), which has the disadvantage of being extremely unsightly.

<Object of the Invention> In order to eliminate the above-mentioned conventional drawbacks, the present invention arranges a plurality of light-emitting elements perpendicular to the film feeding direction so that character data is always properly imprinted on the subject on the surface. The purpose was to

<Example> Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1-(a) shows the arrangement of light emitting elements (for example, LEDs) a to y in a camera having a data imprinting function according to the present invention. 100 is the shooting screen, and the arrow (A
) is the moving direction of the photographic screen, that is, the film winding direction. The 25 light-emitting elements a'-y are arranged in rows in a direction perpendicular to the film winding direction, and depending on the shooting posture of the camera, for example, when the camera is shooting in a horizontal position, the number of light emitting elements a'-y is 7 as shown in FIG. 1(b). By enabling the light emitting elements a to g to sequentially emit light in synchronization with film advance,
Data characters will be appropriately imprinted on the subject. Next, when the camera is placed in the vertical position, the data characters can be properly imprinted on the subject by making the <25 light-emitting elements B-y capable of emitting light in synchronization with the film advance, as shown in Figure 1 (C). It will be done.

FIG. 2 shows a specific driving circuit for performing data imprinting according to the present invention.

The switch 1 is brought into a closed state by pressing the release switch of the camera.

4 is an exposure control circuit for controlling exposure to the film. 5 is a winding control circuit for winding the film after exposure. 2 is a switch that repeats opening and closing in synchronization with the rotation of a camera sprocket (not shown); 7 is a buffer that outputs the signal of switch 2; 8 is a D flip-flop (hereinafter referred to as D) whose inputs are the buffer 7 and the oscillator IO; -FF), 9 is buffer 7 and D-
The above-mentioned D-FF8, AND gate 9, and oscillator 8 constitute a one-shot circuit with an AND gate that receives the output of FF8, prevents catering at switch 2, and counter 11 calculates the number of openings and closings of switch 2, that is, pulses. Count the numbers. 6 is a clock circuit, and 12 is a buffer that receives an exposure completion signal from the exposure control circuit 4 from a latch terminal, latches the time immediately before the film winding operation starts from the clock circuit 6, and outputs the same. Reference numeral 13 denotes a decoder which performs a function to be described later, and receives the output of the counter 11 in parallel and also receives the output of the buffer 12. Further, the switch 3 is a known detection switch that is open when the camera is photographed in a horizontal position and closed when it is photographed in a vertical position, and is composed of a mercury switch or the like, and is input to the decoder 13.

The transistors 100 to 124 are respectively connected to the 25 light emitting elements a''-y and are made conductive or non-conductive depending on the output signal of the decoder 13.
It turns on or off the light emitting element mentioned above. Here, some transistors and light emitting elements are omitted.

Next, the operation of the above-mentioned circuit will be explained with reference to FIG.

FIG. 3 shows the switch 1 of FIG. 2, the exposure control circuit 4, the winding control circuit 5, the sprocket (not shown), and the light emitting element a.
-y shows a timing chart of light emission timing, etc. The exposure amount control circuit 4 starts operating as shown in the timing chart of FIG. 3 by the open signal of the release switch l, and when the exposure operation is completed, the latch terminal of the buffer 12 inputting data from the clock circuit 6 is activated. It detects the falling edge of the exposure control circuit 6 and latches the data immediately before the start of film winding. This is to prevent the data of the clock circuit 6, that is, the time, from changing during winding and to prevent the imprint information from being changed. Transistors 100 to 124 are selected according to the count value of the counter 11 that counts the number of openings and closings of the switch 2 that opens and closes in synchronization with a sprocket (not shown) on the data to be imprinted by the decoder 13 according to the output of the buffer 12, that is, the time information. , data is imprinted onto a film (not shown) by appropriately turning on or off the light-emitting elements a-y. Next, the output state of the decoder is shown in Figures 4 (A) and (B).
).

The arrangement of the light emitting elements in FIG. 1(a) is seven light emitting elements a −
g, and four light emitting elements j −m, n % Q,
In the data processing system, the combinations of four light-emitting elements constituting 4 bits are (a-d), (e-h), (i
= 1! ), (m-p), (q~t)
, (u to X) and (y), and each block is shown in FIG. 4(b). Furthermore, the data characters shown in this embodiment have one character composed of a 4.times.7 dot matrix.

Now, to explain specifically the case where the date of the clock circuit is December 25, 1985, the data imprinted on the film is 85 12 25.

When the camera is currently in the horizontal shooting position, the switch 3 in FIG. Accordingly, when the first pulse is generated, the transistors 101 and 102, that is, the light emitting elements I and E are turned on. Similarly, as shown in FIG. 4(a), when the light emitting element g is turned on, that is, the output of the light emitting element constituting 4 bits is expressed in hexadecimal notation, when the first pulse is generated, the light emitting element (a - d ) is 6. (e
-h) corresponds to 4, and the other light emitting elements are not put into the driving state and only the light emitting elements a to h are put into the driving state. Next, when switch 2 synchronized with the film generates a second pulse, a and d of the light emitting elements (a to d) are activated, that is, 9 in hexadecimal, and only g of the light emitting elements (e - h) is activated. The decoder 13 is configured so that the hexadecimal number 4 is output when the state is changed.

Thereafter, as shown in FIG. 4-(a), the number of pulses is sequentially and appropriately selected up to 29 according to the count value of the counter 11, so that the number of pulses is appropriately selected for the subject as shown in FIG. 1(b). The data will be imprinted and recorded.

Next, when the shooting position of the camera is vertical, all light emitting elements a
-y is in the driving state. That is, when the decoder 13 receives the vertical position information from the switch 3, as shown in FIG. 4(B), when the counter 11 counts the first pulse, it specifies b and C in the light emitting elements (a-d). In other words, it is 6 in hexadecimal, and the light emitting elements (e to h) are f, g,
Specify h, that is, output E in hexadecimal. Similarly, in the light emitting element (i = 1), when the second pulse is generated, the light emitting element (a - d) becomes 9, (e
~h) is something that the decoder 13 outputs as 0.

That is, when photographing in a vertical position, data characters suitable for vertical position photographing are imprinted as shown in FIG. 1-(c) by appropriately lighting dots of the 25 light emitting elements a to y up to the seventh pulse.

In other words, the switch 3 is a switch for detecting the vertical/horizontal position of the camera, and when the camera is in the vertical position and the switch 3 is turned on, the input is input to the decoder 13, and the address in the decoder is switched, as shown in Figure 4 (b). The characters are output horizontally. In other words, the year, month, and date are grouped together for vertical position.
If data for the horizontal position is stored in the decoder 13, the most significant bit of the address, for example, can be controlled by the switch 3 and switched between "0" and "1".

In this embodiment, the data characters are printed when the film is wound, but this may be done when the film is rewound.

Furthermore, although one data character is made up of 7×4 dots, it goes without saying that the number of dots is not limited to this and may be made up of any number of dots such as 7×5. In addition, the arrangement is not limited to just one vertical row of LEDs, but also a dot matrix arrangement for one character.
It is also possible to use a type in which data characters are imprinted one by one in synchronization with film travel by arranging D.

Effect> As explained above, the present invention arranges a plurality of light emitting elements in a row in the vertical direction of the camera, selects the light emitting element to be used according to the shooting direction of the camera, and controls film winding or winding. Data characters are captured by moving in two stages in synchronization with the return run, and the camera's so-called "vertical position" and "
Since the image is always projected in the proper direction with respect to the screen in both horizontal and horizontal positions, it has the advantage that the number of light emitting elements can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a timing chart of the present invention, and FIG. 3 is a diagram showing a timing chart of the present invention. FIG. 4 is a diagram 7 showing the output state of the decoder 13 in FIG. 2.
There is a pa. FIG. 5 is a diagram showing a conventional example. Figure 1 (b) Tan/Kasumi (C) Figure 5 (α) Figure f, Cb)

Claims (1)

[Claims] A plurality of light emitting elements arranged perpendicular to the running direction of the film,
In a data imprinting device for a camera that records data on the film by selectively lighting up the light emitting elements in synchronization with the film running, the camera is configured to have a first attitude and a second attitude.
an attitude detection means for detecting an attitude position;
When the posture is detected, all of the light emitting elements are driven to imprint the data characters, and when the detection means detects the second posture, some of the light emitting elements are driven and the data of the first posture is imprinted. A data imprinting device for a camera, characterized in that it is equipped with a switching means for switching the orientation of characters.