JP2873874B2 - Still image capturing device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a still image photographing apparatus, and more particularly, to a still image photographing apparatus that photographs a range of a photographic film size.

[Conventional technology]

FIG. 5 is a block diagram showing a conventional still video camera system (still video cameras are hereinafter referred to as “SV cameras”).

In FIG. 5, reference numeral 100 denotes an SV camera, and 200 denotes a negative / positive adapter (hereinafter referred to as an NP adapter). NP adapter
Reference numeral 200 denotes an NP mode terminal 201, a negative / positive switching terminal 202, a negative / positive mode switch 203, a negative / positive switching switch 204, a film irradiation light 205, a film 206, and a lens 207. The configuration of the SV camera 100 is described in FIG.
Since it is shown in the figure and its contents are publicly known, the description is omitted.

 Next, the operation of this conventional example will be described with reference to FIG.

First, when the SV camera 100 is connected to the negative / positive adapter 200, the negative / positive mode switch 203 is turned on (the connection is not shown), and the SV camera 100 enters a negative / positive photographing mode, and the image of the film is read in a known manner. Perform the operation of recording on a floppy disk.

[Problems to be solved by the invention]

As described above, in the conventional example, as shown in FIG. 5, since the film irradiation light 205 is required in the NP adapter, the cost increase including the power supply circuit (not shown) is required. There is a problem that the size of the system becomes considerably large and the price of the whole system is increased.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and provides a still image photographing apparatus which uses a flash discharge lamp (hereinafter, referred to as a discharge lamp) as a light source for an adapter and can greatly reduce the cost. The purpose is to do so.

[Means for solving the problem]

In order to achieve the above object, according to the present invention, a still image photographing apparatus is configured as in the following (1) to (4).

(1) A still video camera having a flash discharge lamp and capable of photographing a photographing range of almost a photographic film size, and an adapter combined with the still video camera and having an optical path for irradiating the photographing range with the flash discharge lamp. A still image photographing device comprising the same.

(2) The still image photographing apparatus according to (1), wherein the film or the mounted slide is fixed to a photographing range of the adapter.

(3) The above (1) or (2), wherein the optical path of the adapter is configured to irradiate the light from the side opposite to the side on which the photographing range is photographed.
The still image photographing device according to any one of the above.

(4) a still video camera having a flash discharge lamp and an exchange recording means for converting a negative image into a positive image and recording the same, and capable of photographing a photographing range of almost a photographic film size;
(2) A still image photographing apparatus comprising the adapter according to any one of (3) and (3).

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

1 is a block diagram of a still video image recording apparatus according to one embodiment of the present invention, FIG. 2 is a timing chart of the operation of this embodiment, and FIG. 3 is a flowchart (1) for controlling the operation of this embodiment. FIG. 4 is a flowchart (2) for controlling the operation of this embodiment. In the figure, the same or corresponding components as those of the conventional example are denoted by the same reference numerals, and the description will be partially repeated.

In FIG. 1, Y is a still video image recording device,
A is a first close-up means, which is constituted by an SV camera (still video camera, hereinafter referred to as a main body) 100 (details will be described later), and has a function of taking a photographing range X of a photographic film. B is an optical path for irradiating the photographing range X with the discharge lamp 118 or the external discharge lamp 300 (details will be described later). C is a conversion recording unit, which is constituted by the controller 120 and converts a negative image into a positive image and records it. Also, 200 is body 1
The NP adapter, which is combined with 00 and constitutes the second close-up means D having the optical path B, and 300 is an external discharge lamp.

Next, the operation of this embodiment will be described with reference to FIGS.

 First, the case of using the built-in discharge lamp 118 will be described.

In the flowchart of FIG. 3, when the on operation of the switch (SW) 1125 is confirmed in # 401, the process proceeds to # 402. If SW1 125 is off, return to # 401. In step # 402, if the SV camera 100 is connected to the NP adapter 200 and the negative / positive mode switch (not shown) is on, the process proceeds to step # 404. On the other hand, when the negative / positive mode switch is off, # 40
Proceed to 3 to perform the normal operation of the SV camera (the description of this operation is omitted). Proceed to # 404 and system controller 120
Is the built-in discharge lamp 118 via the discharge lamp interface 119
Check whether the battery is fully charged. If the charging of the discharge lamp is not completed, the system controller 120 charges the built-in discharge lamp 118 from the discharge lamp interface 119 (# 405). On the other hand, if the built-in discharge lamp 118 has already been charged in # 404, the process proceeds to # 406. At step # 406, the state of the negative / positive changeover switch (not shown) is checked, and if negative, the process proceeds to # 408, where the system controller 120 sets the negative / positive circuit 109 to the negative mode. On the other hand, in the case of positive in # 406, the process proceeds to # 407, and the negative / positive circuit 109 is similarly set to the positive mode.

In step # 409, when the ON operation of the switch (SW) 2 126 is detected, the system controller 120 proceeds to step # 410, and the spindle motor 115 is driven by the spindle motor driving circuit 122 via the disk drive interface 121.
Drive.

On the other hand, if the ON operation of SW2 126 is not detected in # 409, the process returns to # 401. And in # 411,
The system controller 120 controls the CCD drive 113 via the timing generation circuit 114 to set the CCD 106 in the clear mode (CCD control timing (A) in FIG. 2).

If it is determined in step # 412 that the rotation of the spindle motor 115 is stable and recording on the video floppy 116 is possible, the process proceeds to step # 413.

On the other hand, if the rotation of the spindle motor 115 is unstable and recording is not possible, the process waits in step # 412 until the rotation is stabilized.
Then, in # 413, the system controller 120
Check the timing of the PG (pulse generator) and enter the sequence to prepare for recording in the next PG (PG in FIG. 2).
Timing (a)).

Then, proceeding to # 414, the system controller 120
Through the lens shutter drive circuit 112, the lens shutter 1
02 is driven and set to the small aperture position (aperture timing (c) in FIG. 2). Next, in # 415, the system controller 120 starts / stops emission of the built-in discharge lamp 118 via the discharge lamp interface 119 (control timing (d) of the discharge lamp in FIG. 2). At this time, the discharge lamp light on the optical path B enters the NP adapter 200, passes through the condenser lens 206, is reflected by the irradiation light reflection mirrors 204 and 203,
The film 202 is irradiated. Then, through a lens 201, an optical low-pass filter 101, a lens shutter 102, a lens 103,
The light passes through the infrared cut filter 104, is exposed to the CCD 106, and is accumulated (control timing (e) of the CCD in FIG. 2).

Next, in # 416, the timing generation circuit 114 enters the read operation of the CCD 106 via the CCD drive circuit 113 (the CCD control timing (f) in FIG. 2).

Then, in # 417, the video signal read from the CCD 106 is supplied to the sample / hold circuit 107, the process circuit 10
8, negative / positive circuit 109, modulation / demodulation circuit 110, recording / reproducing amplifier 111,
Recording is performed on the video floppy 116 via the recording / reproducing head 117 (recording gate timing (g) in FIG. 2).

Next, the case where the external discharge lamp 300 is used as the light source of the negative / positive adapter 200 will be described with reference to the flowchart (2) of FIG.

In FIG. 4, when the system controller 120 detects the ON operation of SW1 125 via the main interface 124 in # 501, the process proceeds to # 502. If the ON operation is not detected, the process returns to step # 501. In step # 502, if the SV camera 100 is connected to the NP adapter 200 and the negative / positive mode switch (not shown) is on, the process proceeds to step # 504.
Proceed to the negative or positive film image recording sequence.

On the other hand, in # 502, when the ON operation of the negative / positive mode switch is not confirmed, that is, when the SV camera 100
If not connected to adapter 200, proceed to # 503,
A normal SV camera recording sequence is performed (description is omitted). Also, in the above-mentioned # 504, the system controller 120
It is checked from the external discharge lamp terminal 123 via the discharge lamp interface 119 whether the external discharge lamp 300 is in the charging completed state. If it is determined that the external discharge lamp 300 is not in the charging completed state, the process proceeds to # 505, and the external discharge lamp 300 is charged via the discharge lamp interface 119.
On the other hand, when it is confirmed that the charging of the external discharge lamp 300 is completed, the process proceeds to step # 506.

Then, in # 506 which is the conversion recording means C, a negative / positive changeover switch (not shown) in the NP adapter 200
In the case of a negative, the process proceeds to # 508 and the system controller 120 sets the negative / positive circuit 109 to the negative mode. On the other hand, if it is positive in # 506, the process proceeds to # 507, and the negative / positive circuit 109 is set to the positive mode in the same manner.

Then, proceeding to # 509, when the ON operation of SW2 126 is detected, the system controller 120 proceeds to # 510, and drives the spindle motor 115 by the spindle motor drive circuit 122 via the disk drive interface 121. On the other hand, if the ON operation of SW2 126 is not detected in # 509, the process returns to # 501.

Then, in # 511, the system controller 120
The CCD drive circuit 113 is controlled via the timing generation circuit 114 to set the CCD 106 in the clear mode (second mode).
CCD control timing in the figure (A)). And # 512
If it is determined that the rotation of the spindle motor 115 is stable and recording on the video floppy 116 is possible,
Proceed to # 513. On the other hand, if the rotation of the spindle motor 115 is unstable and recording is impossible, it is necessary to wait until the rotation is stabilized at # 512.

In # 513, the system controller 120 checks the timing of the PG and enters a sequence for preparing for recording in the next PG (PG timing (a) in FIG. 2). And
Proceeding to step # 514, the system controller 120 drives the lens shutter 102 via the lens shutter drive circuit 112 to set it to the small aperture position (aperture timing (c) in FIG. 2). Then, in # 515, the system controller 120 starts and stops the emission of the external discharge lamp 300 via the discharge lamp interface 119 (control timing (d) of the discharge lamp in FIG. 2). At this time,
The discharge lamp light enters the NP adapter 200 and the condenser lens 2 of the circuit B
Illumination light reflecting mirror 204 raised in the direction of the arrow through 05
And is reflected by the irradiation light reflection mirror 203 to irradiate the film 202. Then, through the lens 201, the CCD passes through the optical low-pass filter 101, the lens shutter 102, the lens 103, and the infrared cut filter 104 in the SV camera 100.
Exposure is made to 106 and accumulated (CCD control timing (E) in FIG. 2).

Also, in # 516, the timing generation circuit 114
The read operation of the CCD 106 is started via the CCD drive circuit 113 (control timing (f) of the CCD in FIG. 2).

Then, in # 517, the video signal read from the CCD 106 is supplied to the sample / hold circuit 107, the process circuit 10
8, negative / positive circuit 109, modulation / demodulation circuit 110, recording / reproducing amplifier 111,
Recording is performed on the video floppy 116 via the recording / reproducing head 117 (recording gate timing (g) in FIG. 2).

In this embodiment, a method of providing a condenser lens in the NP adapter and condensing the dispersed discharge lamp light was adopted.However, depending on the guide number of the discharge lamp, the light amount of the light source for the NP adapter is Does not require such a large amount of light, a condensing lens may be omitted and a simpler configuration may be adopted.

When the external discharge lamp is used as the light source of the NP adapter, the irradiation light reflecting mirror 204 is raised to guide the discharge lamp light of the external discharge lamp. Even if the mechanism is abolished, a sufficient amount of light can be obtained.

Further, the amount of light may be adjusted by providing the function of an attenuator to the half mirror.

〔The invention's effect〕

As described above, according to the present invention, it is possible to provide a still image photographing apparatus using a discharge lamp as a light source for an adapter and capable of greatly reducing costs.

[Brief description of the drawings]

FIG. 1 is a block diagram of a still video image recording apparatus according to one embodiment of the present invention, FIG. 2 is a timing chart of the operation of this embodiment, and FIG. 3 is a flowchart (1) for controlling the operation of this embodiment. FIG. 4 is a flowchart (2) for controlling the operation of this embodiment, and FIG. 5 is a block diagram of a conventional video image recording apparatus. A: First close-up means B: Optical path C: Conversion recording means D: Second close-up means 100: Still video camera 200: Negative / positive adapter 300: External discharge lamp 103: Lens 106: CCD 107 Sample / hold circuit 108 Process circuit 109 Negative / positive circuit 110 Modulation / demodulation circuit 111 Recording / reproduction amplifier 112 Lens shutter drive circuit 113 CCD drive circuit 114 Timing generation circuit 116 Floppy disk 117 Recording / playback head 118 Discharge lamp built-in camera 119 Discharge lamp interface 120 System controller 121 Disk drive interface 124 Main interface 125 SW1 126 SW2 201 Lens 202 Film 203 Irradiation light reflecting mirror 1 204 Irradiation light reflecting mirror 2 205, 206 Condensing lens Showing a substantial part.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 15/05 G03B 7/16 G03B 17/02

Claims (4)

(57) [Claims] 1. A still video camera having a flash discharge lamp and capable of photographing a photographing range of approximately a photographic film size, and an adapter combined with the still video camera and having an optical path for irradiating the photographing range with the flash discharge lamp. And a still image photographing apparatus. 2. The still image photographing apparatus according to claim 1, wherein a film or a mounted slide is fixed to a photographing range of said adapter. 3. The still image photographing apparatus according to claim 1, wherein an optical path of said adapter is configured to emit light from a side opposite to a side on which a photographing range is photographed. 4. A still video camera having a flash discharge lamp and exchange recording means for converting a negative image into a positive image and recording the image, and capable of photographing a photographing area of substantially a photographic film size. A still image photographing apparatus, comprising: the adapter according to any one of the above.