JPH01158689A - Still video recorder - Google Patents

Abstract

PURPOSE:To easily recognize the quantity of a recording to a photographing screen by displaying the quantity of recording according to respective recording systems by the switching operation of a switching means. CONSTITUTION:At the time of executing a field recording system, when a switching lever 15 is moved rightward, a pin 22 is inserted between leg parts 20b and 21b, a display member 20 is rotated clockwise against a spring 23 centering the pin 22 and a display part 21 is rotated counterclockwise against a spring 24. Thereby, the semicircular arc parts 20a, 21a of the display members 20, 21 are retracted externally of a fluoroscopic window 12 and a display plate 18 is visually recognized from the fluoroscopic window 12. A numeric character indicated by the instructing groove 8b of a counter 8 is read, thereby, the number of the photographs. In case of a frame recording system, the switching lever 15 is moved leftward and a pin 27 is moved leftward. Thereby, a ring body is formed by the semicircular arc parts 20a, 21a to visually recognize through the fluoroscopic window 12. The numeric character on the ring body indicated by the instructing groove 8b is read, thereby, the number of the photographs is recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION (Prior Art) The present invention relates to a still video recording apparatus capable of performing field recording and frame recording on a recording medium such as a magnetic disk.

[Background technology]

In recent years, the development of still video recorders such as still video cameras that record images on a recording medium such as a magnetic disk housed in a cassette using a field recording method or a frame recording method has been progressing.

Figure 1 shows cassette C used for this still video camera.
FIG. In the figure, 1 is a cassette body having a flat housing shape, 2 is a magnetic disk rotatably housed in this cassette body 1, and a center buff 3 is located in the center.
is fixed. The center buff 3 is formed with a mounting hole 3a for mounting a rotational drive spindle built into the camera body, which will be described later. 4 is this center huff 3
A magnetic material is placed on the back side of the spindle so that it is attracted to a magnet placed on the spindle. Reference numeral 5 denotes an opening formed in the surface of the cassette body 1, through which signals are recorded onto the magnetic disk 2 by a head. Reference numeral 6.6 denotes two positioning holes formed in the cassette body 1 for positioning the cassette C within the camera body. Reference numeral 7 denotes a recording prohibition claw provided on the cassette body 1. When this claw 7 is present, it is possible to record signals on the magnetic disk 2, and when this claw 7 is removed, recording on the magnetic disk 2 is possible. is prohibited+L. Reference numeral 8 denotes a counter rotatably provided on the cassette body 1, which has ratchet teeth 8a formed on its outer periphery and engages with a locking pawl 9 made of an elastic member. This counter 8 has information for one track recorded on the magnetic disk 2, and is rotated by a predetermined angle (for example, an angle equal to both ratchet teeth 8a) when the head moves to the next track. 8b is an instruction groove carved into this counter 8,
It shows the phase of the rotating counter 8.

In this case, concentric recording tracks are formed on the magnetic disk 2.

FIG. 2 is a diagram showing a conventionally proposed still video camera using the above-mentioned cassette C.

In the figure, 10 is a camera body, 11 is a lid attached to the rear surface of this camera body 10 that can be opened and closed;
It is opened and closed when a cassette C is attached to or removed from a cassette loading section (not shown) formed at 0. 1
2 is a counter see-through window provided in this lid 11, and this window 1
2, the indicator groove 8b can be seen through.

13 are arranged at equal intervals around this counter transparent window 12.
The display is printed with numbers up to 50, and these numbers correspond to the field recording method. That is, the number placed over the indicator groove 8b of the rotating counter 8 represents the number of field images taken. In addition, 13 is the finder, 14
is the photographic lens barrel.

In the still video camera having the above configuration, image information for one field is recorded per track on the magnetic disk 2 in the loaded cassette C. The head for recording on the magnetic disk 2 moves to the next track each time recording on one track is completed, and in conjunction with this movement of the head, the counter 8 is rotated by one scale.

Therefore, when the screen is recorded using the field recording method, that is, when one screen is recorded in one field, the number of photographed screens can be known by reading the number of moving scales of the indication groove 8b.

However, if the screen is recorded using the frame recording method, one screen is recorded as one frame (two fields).
If the counter is recorded in 1 frame, the counter will move by 8 or 2 scales each time one frame is shot, and the number of moving scales will not match the number of shooting screens, which has the disadvantage that it will be difficult to recognize the number of shooting screens. Ta.

〔the purpose〕

This invention has been made by focusing on the above-mentioned drawbacks, and is a still video recording device that can easily recognize the amount of recording on a recording medium, such as the number of shooting frames, regardless of whether it is a field recording method or a frame recording method. It provides:

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 2 to 5. Note that the same or equivalent parts as in the conventional example described above are given the same reference numerals, and detailed explanation thereof will be omitted.

FIG. 3 is an external perspective view of the first embodiment of the present invention. In the figure, reference numeral 15 indicates a switching lever for switching between the field recording method and the frame recording method.
The switching operation is performed by moving the switch left and right along the elongated hole 16 bored in the switch 1. Reference numeral 17 denotes a display means for appropriately displaying a scale for the field recording method or a scale for the frame recording method in accordance with the switching operation of the switching lever 15.

FIG. 4 is an exploded perspective view showing the structure of this display means 17. In the figure, reference numeral 18 denotes a first display plate having an annular shape, on which a scale for the field recording method is printed, and is attached to the inner surface of the lid 11 at a position visible from the see-through window 12. In this embodiment, since 50 tracks are recorded on the magnetic disk 2, numbers from 1 to 50 are printed at equal intervals as a scale. Reference numeral 19 denotes a second display board consisting of two upper and lower display members 20 and 21, and the first display board 18 and the second display board 19 constitute the display means 17. These two display members 20.
21 are semicircular arc portions 20a and 21a, and the semicircular arc portion 2
0a.

21a, each leg 20b, 21b is rotatably attached to the inner surface of the lid 11 by a bottle 22, and the first display plate 1
8 and the lid 11. In addition, this leg 20
When b and 21b are superposed, semicircular arc parts 20a and 21a are formed.
As a result, the same annular shape as the first display board 18 is formed, and the front side of the first display board 18 is covered.

In addition, the semicircular arc parts 20a and 21a are divided into numbers 1 to 25 and printed as a scale for the frame recording method, and as mentioned above, when the ring shape is formed, the numbers printed are equally spaced. They are lined up in order. , 23 is a spring fixed to one end of the leg 20b, and the display member 20 is attached to the bottle 2.
It is biased to rotate counterclockwise around point 2. A spring 24 is fixed to one end of the leg portion 21b, and urges the display member 21 to rotate counterclockwise about the bottle 22. 25 is a connecting lever, one end of which is connected to the switching lever 15 through a pin 26.

27 is a bottle installed at the other end of the switching lever 15, and by moving the switching lever 15 to the right, the leg portion 20b
and 21b from the side, and the switching means 28 is inserted together with the bait switching lever 15 and the connecting lever 25.
It consists of

In the still video camera having the above configuration, when performing the field recording method, first, the switching lever 15
Move to the right. This allows the bottle 22 to
0b and 21b, one display member 20 rotates clockwise about the bottle 22 against the spring 23,
The other display member 21 rotates counterclockwise against the spring 24. As a result, the semicircular arc portion 20 of the display member 20.21
a, 21a are retreated outside the transparent window 12, and from the transparent window 12, the first display board 1 located behind the display member 20, 21 is shown.
8 is visible. That is, the numbers 1 to 50, which are scales for the field recording method, are visually recognized. Therefore N&
When the camera is in the dark, the number of shots can be confirmed by reading the number placed over the indicator groove 8b of the counter 8.

When recording by the frame recording method, the switching lever 15 is moved to the left, and the bin 27 is moved to the left from the position shown in FIG. This causes the display member 20 to rotate counterclockwise and the display member 21 to rotate clockwise. When the bottle 22 is completely removed from between the legs 20b and 21b, the legs 20b and 21b overlap and a ring shape is formed by the semicircular arc parts 20a and 21a.

As a result, the first display plate 18 has semicircular arc portions 20a and 21a.
The semicircular arc parts 20a and 21 are covered from the transparent window 12.
A is visible. Therefore, the numbers 1 to 25, which are scales for the frame recording method, are visible. Therefore, when taking pictures, the number of pictures to be taken can be confirmed by reading the number indicated by the indication groove 8b of the counter 8.

Note that the display board 18 may be provided on the cassette C side.

Next, a second embodiment of the present invention will be described with reference to FIG. Note that the same or equivalent parts as in the first embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

In the figure, 29 is a liquid crystal display plate attached to the lid 11 as a display means, and a transparent electrode is provided on the outer periphery 29a so that a scale for the field recording method and a scale for the frame recording method can be displayed respectively. I'm in the middle of the day. Further, the center portion 29b of the liquid crystal display plate 29 is transparent, so that the counter 8 can be seen through the see-through window 12. 30 is a printed circuit board for wiring of the liquid crystal display board 29. Reference numeral 31 denotes a bottle installed at the rear end of the switching lever 15. 32 connects the two contact pieces 33 and 34 to the pedestal 3
5, the left contact piece 33 has elasticity and comes into contact with the batter's contact piece 34 when pressed from the side. Further, this switch 32 is located to the right of the switching lever 15, and by moving this lever 15 to the right, the bottle 31 or the left contact piece 33 is pressed and brought into contact with the right contact piece 34. It constitutes a switching means 36 together with the switching lever 15 and the bin 31. 37 is a display drive circuit.

When recording by the field recording method, the switching lever 15 is moved to the right to open the switch 32. In response to this, the drive circuit 37 causes the liquid crystal display panel 29 to display a scale for the field recording method. for example,
Display numbers from 1 to 50.

Further, when recording is performed using the frame recording method, the switching lever 15 is moved to the left and the switch 32 is opened. As a result, the drive circuit 37 causes the liquid crystal display panel 29 to display a scale for the frame recording method. For example 1
Display the numbers ~25.

〔effect〕

As explained above, the still video camera recording apparatus of the present invention has the advantage that the amount of recording on the recording medium, such as the number of photographed frames, can be easily recognized regardless of whether the field recording method or the frame recording method is used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a cassette, FIG. 2 is a perspective view showing the external appearance of a conventionally proposed still video camera, FIG. 3 is an exploded perspective view of essential parts showing an embodiment of the present invention, and FIG. 4 FIG. 5 is an exploded perspective view of essential parts showing a first embodiment of the invention, and FIG. 5 is an exploded perspective view of essential parts showing a second embodiment of the invention. 17...Display means 28...Switching means 29---Liquid crystal display board 36 as display means...
...Switching means

Claims (1)

[Claims] A still video recording device capable of a field recording method and a frame recording method, comprising a switching means for switching between the respective recording methods, and a display for displaying the recording amount according to each recording method by switching operation of the switching means. 1. A still video recording device comprising: means.