JPH089247A - Film image input device using camera - Google Patents

Abstract

PURPOSE:To use a camera as a film image input device. CONSTITUTION:The rear cover of a camera main body 12 is removed and an illumination unit 30 is attached to the main body 12. The unit 30 contains a reflector, a light source lamp, a condenser lens 42, and a pressure plate. The pressure plate has a window against the exposure frame prepared at the side of the main body 12. A photo film stopped on the exposure frame is irradiated by the light sent from the light source lamp and condensed by the lens 42 through the window of the pressure plate. An image pickup unit 32 is connected to a photographing lens barrel 56 of a camera 10, and the unit 32 consists of a plate 54 to which an adaptor lens barrel 50 and a CCD 52 are fixed. An adaptor lens forms the images on the photodetecting surface of the CCD 52 from the image light that is made incident on the photographing lens and transmitted through the frames of the film. The CCD 52 successively outputs the stored R, G and B signal charges to an image signal processor 62 as the voltage signals. The processor 62 processes the voltage signals and outputs their video signals to a monitor TV 68.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film image input device, and more particularly to a film image input device using a camera for taking silver halide photographs.

[0002]

2. Description of the Related Art Although a camera using a photographic film has been conventionally known, this type of camera has no function other than taking a silver halide photograph. On the other hand, a film image input device that captures a transmission image of a long developed photographic film with an imaging device such as a CCD through a taking lens and outputs the image to a monitor TV to display the film image is WO90.
/ 04301, JP-A-5-75922, JP-A-5
It is disclosed in Japanese Patent Application Laid-Open No. 56-34545, Japanese Patent Application Laid-Open No. 5-226656 and the like. These film image input devices are provided with a film feeding means for rewinding and rewinding the photographic film from a film cartridge, and a light source for irradiating the rewound photographic film to obtain the transmission image.

[0003]

As described above, the camera and the film image input device are completely different in the usage pattern. However, the camera and the film image input device both have a film feeding means for rewinding and rewinding the photographic film from the film cartridge, and the camera is used as a film image input device by effectively utilizing this film feeding means. If it can be used, it will be very convenient and the function of the camera can be expanded. Furthermore, if the camera can be used as a film image input device, a dedicated film image input device becomes unnecessary.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a film image input device using a camera.

[0005]

In order to achieve the above object, the present invention provides a camera body for taking a silver halide photograph, and a developed body mounted on the back side of the camera body and loaded in the camera body. An imaging unit including an illumination unit having a light source for irradiating a photographic film, an image sensor, and an adapter lens for forming an image of the transmitted light of the photographic film emitted by the illumination unit on the image sensor. An image pickup unit connected to the front side of the lens or the camera body; and an image processing device for processing a signal output from the image pickup device of the image pickup unit and outputting a video signal indicating a film image. Characterize.

[0006]

According to the present invention, an illumination unit having a light source is attached to the rear side of the camera body, and an image pickup unit having an image pickup element and an adapter lens is provided on the photographing lens of the camera body or on the front surface of the camera body. Connecting. Then, the developed photo film loaded in the camera body is illuminated by the light source of the illumination unit, and the transmitted light is imaged on the image pickup device by the adapter lens of the image pickup unit. Then, the signal output from the image pickup device is processed by the image processing device, and a video signal indicating a film image is output. Thus, if a monitor TV is connected to the image processing apparatus, the image of the photo film can be displayed on the monitor TV.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a film image input device using a camera according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is an explanatory view showing an embodiment of a film image input device using a camera according to the present invention. The camera 10 applied to the present embodiment is a camera for taking a silver salt photograph, and is a camera using the photographic film F shown in FIG. As shown in FIG. 2, the photographic film F is
The film is wound around the spool shaft 102 of the film cartridge 100 and stored, and the magnetic recording layer 1 is provided for each frame 104.
06 is formed. Magnetic information is recorded on the magnetic recording layer 106 by a magnetic head device described later.

A storage chamber 14 for the film cartridge 100 is formed in the camera body 12 of the camera 10, as shown in FIG. The photographic film F of the film cartridge 100 stored in the storage chamber 14 is rewound for each frame by a film feeding means (not shown) provided in the camera body 12. The rewound photographic film F is temporarily wound on the take-up reel 20 in the film take-up chamber 18 after its frame is once stopped on the exposure frame 16 formed in the substantially central portion of the camera body 12. Further, the photographic film F wound on the take-up reel 20 for all frames is continuously wound around the film cartridge 100 by reversing the film feeding means.

As shown in FIG. 1, the film image input device of this embodiment comprises a camera body 12, a lighting unit 30, an image pickup unit 32, and an image processing device 34. The illumination unit 30 is attached by removing the back cover (not shown) of the camera body 12 from the camera body 12. This lighting unit 30 is, as shown in FIG.
Inside the casing 36, a reflector 38, a light source lamp 40,
A diffusion plate 42 and a pressure plate 44 are sequentially attached and configured.

At the rear portion of the casing 36, a holding portion 36 for accommodating and holding the reflector 38 formed in an umbrella shape.
A is formed to project, and a hole 36B for inserting the connector 40A of the light source lamp 40 is formed. This hole 3
The connector 40 </ b> A inserted through the power source 8 has a power source 45 (see FIG.
Connected). The light source lamp 40 is mounted inside the reflector 38, and the diffusion plate 42 is mounted in front of the light source lamp 40. Further, the pressure plate 44 is fixed in front of the diffusion plate 42. The pressure plate 44 allows the photo film F being fed in the camera body 12 to be fed to the camera body 12.
It is pressed to the side to maintain the flatness of the photographic film F.

A rectangular window 44A corresponding to the exposure frame 16 on the camera body 12 side and corresponding to the size of the frame 104 of the photographic film F is opened in the pressure plate 44. Therefore, the frame 10 of the photographic film F stopped on the exposure frame 16
Illumination light from the light source lamp 40, which is uniformized by the diffusion plate 42, is applied to the beam No. 4 through the window 44A of the pressure plate 44. Further, at the right corner of the pressure plate 44 in FIG.
Is fixed. The magnetic head device 46 is provided at a position corresponding to the magnetic recording layer 106 of the photographic film F, and is also connected to the magnetic circuit 50 of the image processing device 34 via the cable 48 shown in FIG.

On the other hand, as shown in FIG. 1, the image pickup unit 32 is composed of an adapter lens barrel 50 holding an adapter lens and a plate 54 to which a CCD 52 shown by a dotted line in the figure is fixed, and the adapter lens barrel 50. And the plate 54 are integrated. The adapter lens barrel 50 is connected to the taking lens barrel 56 of the camera 10 such that the optical axis of the adapter lens and the optical axis of the taking lens coincide with each other. The adapter lens can image the transmitted image light of the frame 104 of the photographic film F incident through the taking lens on the light receiving surface of the CCD 52. The image light of the frame 104 formed on the light receiving surface is charged and accumulated in each light receiving portion and converted into R, G, and B signal charges in an amount corresponding to the intensity of light.

Cables 58, 60 are provided on the CCD 52.
It is connected to the CCD drive circuit 62 and the image signal processing circuit 64 of the image processing device 34 via. CCD drive circuit 6
2 and the image signal processing circuit 64 include a central processing unit (CP
U) 66 respectively. The CCD
The drive circuit 62 applies a read gate pulse of one line cycle to the CCD 52. When the read gate pulse is applied to the CCD 52, the CCD 52 sequentially stores the accumulated R, G, B signal charges in the image signal processing circuit 62. Output as voltage signal. The image signal processing device 62 processes the voltage signal and outputs a video signal showing the frame image to the monitor TV 68.
Output to. This allows the monitor TV 68 to display the frame 1
The image No. 04 is displayed.

Next, the operation of the film image input device using the camera constructed as described above will be described. First, the film cartridge 100 accommodating the developed photographic film F is loaded into the camera body 12, and the photographic film F is made ready to be fed by the film feeding means.
Next, the back cover of the camera body 12 is removed, the illumination unit 30 is attached instead of the back cover, and the image pickup unit 32 is connected to the taking lens barrel 56 of the camera body 12. This brings the camera 10 into the state shown in FIG.

Next, the light source lamp 40 of the lighting unit 30 is turned on. After the light amount of the light source lamp 40 has stabilized, the film feeding means of the camera 10 is activated,
The photographic film F is rewound from the film cartridge 100, the feeding is stopped when the first frame 104 is positioned on the exposure frame 16, and the frame 104 is fed to the light source lamp 40.
Irradiate with. At this time, the shutter and the diaphragm of the camera 10 are in the fully open state, so the transmitted image light of the frame 104 is imaged on the CCD 52 via the taking lens of the camera 10 and the adapter lens of the image pickup unit 32. It As a result, the image of the frame 104 is displayed on the monitor TV 6.
8 is displayed. To display the next frame 104,
The photographic film F may be rewound from the film cartridge 100 by one frame 104, and the frame 104 may be positioned on the exposure frame 16 and irradiated by the light source lamp 40. In this way, the light source lamp 40 is fed while the photographic film F is being conveyed.
By irradiating with the
Since the images can be sequentially displayed on the V68, the camera 10 can be effectively used as a film image input device in this embodiment.

Further, in this embodiment, all frames 104, 10
When the images of 4 ... Are sequentially displayed on the monitor TV 68, the frames which are not desired to be printed or the required number of prints can be magnetically recorded on the magnetic recording layer 106 corresponding to the frames 104 by the magnetic head device 46. That is, when the information is input to the CPU 66 with a keyboard (not shown) connected to the CPU 66, the CPU 66 controls the magnetic circuit 50 to record the information on the magnetic recording layer 106 via the magnetic head device 46. The photographic film F recorded in this way reads the information recorded on the magnetic recording layer 106 in a print factory sent through a DPE dealer, and prints the frame according to this information. As a result, in the present embodiment, it is not necessary to request the printing of useless frames, and the number of additional prints can be requested at the same time.

If the photographing condition (F number) at the time of photographing is previously recorded on the magnetic recording layer 106, the information is read by the magnetic head device 46 and the information is used at the time of image signal processing. You can also do it. In the present embodiment, the image pickup unit 32 is connected to the taking lens barrel 56, but the present invention is not limited to this, and the taking lens barrel 56 may be detached from the camera body 12 and directly connected to the camera body 12. You can

Further, as shown in FIG. 4, in the present embodiment, the image pickup unit 32 can be detached from the camera body 12 to be used as a projector for projecting a transmission image of the photographic film F on the screen 70. In this case, the photographing lens of the camera is also used as the projection lens, but the present invention is not limited to this, and a dedicated projection lens may be directly connected to the photographing lens or directly to the camera body 12 side.

[0019]

As described above, according to the film image input apparatus using the camera of the present invention, the illumination unit is attached to the back side of the camera body, and the photographing lens of the camera body or the front side of the camera body. The image pickup unit is connected to, the developed photo film loaded in the camera body is illuminated by the light source of the illumination unit, and the transmitted light is imaged on the image pickup element by the adapter lens of the image pickup unit.
Since the signal output from the image pickup device is processed by the image processing device to output the video signal indicating the film image, the camera can be used as a film image input device.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a film image input device using a camera according to the present invention.

FIG. 2 is an explanatory view of a photographic film applied to a film image input device using a camera according to the present invention.

FIG. 3 is an assembled perspective view of an illumination unit applied to a film image input device using a camera according to the present invention.

FIG. 4 is an explanatory view showing another usage of the film image input device using the camera according to the present invention.

[Explanation of symbols]

 12 ... Camera body 30 ... Illumination unit 32 ... Imaging unit 34 ... Image processing device 40 ... Light source lamp 46 ... Magnetic head device 50 ... Magnetic circuit 52 ... CCD 64 ... Image signal processing device 66 ... CPU 68 ... Monitor TV

Claims (1)

[Claims] 1. A camera body for taking a silver halide photograph, an illumination unit attached to the back side of the camera body, and having a light source for irradiating a developed photographic film loaded in the camera body, and an image sensor. An imaging lens of the camera body, or an imaging unit connected to the front side of the camera body, which comprises an adapter lens for focusing the transmitted light of the photographic film irradiated by the illumination unit on the imaging device. An image processing device that processes a signal output from the image pickup device of the image pickup unit and outputs a video signal indicating a film image, a film image input device using a camera.