JPH0634374U - Electrophotographic holder - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Digitize images, record and play them back, check images and print. [Structure] An electrophotographic holder having a plurality of solid-state image pickup devices 1 installed on a photographing screen portion 3 of a photograph holder 2 is inserted between a focus contact surface portion and a focus glass frame portion on a rear portion of a camera,
An image is formed by forming a focus on the surface of the solid-state image sensor with a lens, and an image signal is input to the recording / reproducing device 8 and recorded on a video tape, a floppy disk, a compact disk,
Reproduce. The screen can be monitored by the monitor television 10, the color of the image can be corrected, the characters, the logo, the composition can be set, displayed, changed, and deleted by the digital image processing device 9, and the electronic printer 11 can immediately print. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The electrophotographic holder of the present invention relates to an improvement of a photo holder for a film of a camera.

[0002]

[Prior art]

 As a conventional technique, a film base is coated with a silver halide or other photosensitive material to make it sensitive, and the film is mounted in a photo holder for film in a dark room. An image is formed on the light-sensitive material by exposure and exposure to form a photographed image on the light-sensitive material, and then development and fixing treatment to form a positive image or a negative image. As an electrophotographic apparatus, a video camera using a magnetic tape or an electrophotographic camera using a video floppy is known.

[0003]

[Problems to be solved by the device]

 As a conventional device, it is common to use a photo-sensitive material (a silver halide or other light-sensitive material coated on a film base) in a photographic machine. Or, it is effective to use it for a view camera of 4 × 5 inch size or more) requires an operation called tilting (changing the shape of the imaged subject, such as tilting means changing the position of the image plane or lens surface). Up and down, left and right, horizontal rotation, vertical rotation movement.When shooting from the bottom up when shooting a building, the upper part of the building becomes smaller and the shape of the building is deformed. This can be corrected to adjust the shape of the building.Because the range before and after image formation, that is, the focus range is narrow, the image plane or lens surface can be moved to move the object plane. Image plane, that is, the focus glass surface The photo-sensitive material (film) requires post-processing such as development, washing, and fixing, and the image is taken in real time after shooting. In addition, it was not possible to easily correct the image or color of the image, and a video camera using a magnetic tape or an electrophotographic camera using a video floppy, In many cases, the solid-state image sensor itself was a fixed type that could not be removed.

[0004]

[Action]

 In the electrophotographic holder of the present invention, a plurality of solid-state image pickup devices (for example, CCD, MOS image pickup devices having several millions of pixels or more) are installed on the photographing screen of the photoholder, and the electrophotographic holder is mounted on the rear of the camera. It is inserted between the pint glass frame and the focus contact surface, the subject is projected onto multiple solid-state image pickup devices, and the monitor TV connected to the above electrophotographic holder receives the image to check the focus and composition. In the photographic machine, the maximum brightness of the FNo of the lens, especially the FNo of most lenses for medium and large format, was F5.6. As mentioned above, when FNo is dark, it is difficult to confirm the composition (when the subject is dark), and with conventional lenses (especially the wide-angle lens has a big problem), there is insufficient light around the screen due to the fourth power law of the consign. However, in the electrophotographic holder of the present invention, the sensitivity of the solid-state image sensor around the screen can be electrically increased by the sensitivity correction circuit, and this lack of light around the conventional screen can be compensated. It can be used to advantage, and the sensitivity of the entire screen can be increased by the sensitivity correction circuit. In addition, a recording / reproducing apparatus (for example, including an IC element, which digitizes an image formed by a solid-state image sensor) is recorded and reproduced on a video tape, a floppy disk, or a compact disk that can be written at any time. Is something that can be done. In addition, image colors (eg RGB, CMY colors), characters, logos, compositions can be set, displayed, changed and deleted easily by digital processing, and can be printed immediately by an electronic printer. The shape of each device does not have to be the shape shown in the drawings.

[0005]

【Example】

 Hereinafter, the electrophotographic holder of the present invention will be described in detail with reference to the drawings. A plurality of solid-state image pickup devices 1 are installed on the photographing screen section 3 of the electrophotographic holder 2, and the electrophotographic holder 2 (the electrophotographic holder may be fixed to the rear of the camera) is focused on the view camera 4 of FIG. The light flux from the lens 7 attached to the view camera 4, which is inserted between the surface portion 5 and the focus glass frame portion 6, is imaged on the plurality of solid-state image pickup elements 1 and is connected from the plurality of solid-state image pickup elements 1. An output signal is transmitted to the connected circuit, and the recording / reproducing device 8 and the digital image processing device 9 digitize the screen signal and a video tape or a floppy disk loaded in the recording / reproducing device 8 or writable at any time. It can be recorded on a compact disk, can be monitored simultaneously by the monitor TV 10, and the image can be focused while watching the monitor TV 10. The image processing device 9 can be operated to perform digital processing of images (correction of image colors such as RGB and CMY colors, setting, display, change and deletion of characters and logo composition). The shutter control device 13 can control the shutter, which is printed immediately by the printer 11 and determines the exposure, by wire or wirelessly (radio wave or light wave).

[0006]

【effect】

 As described above, the brightness of the image and the screen of the TV monitor can be electrically controlled, the conventional film development process is not required, and the image itself can be electronically edited and instantly hard-copied. Floppy disks or compact disks that can be written at any time can be sent as they are, or can be transmitted immediately, and can be reused many times and can be used very economically.

[Submission date] November 8, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

As a conventional apparatus, the photosensitive material of the camera (photosensitive material such as silver halide) and is common to use those coated on the film base, in particular medium-format large format such as large-scale photographic machine ( It is effective to use it on a view camera of Brownie format or 4 × 5 inch format or more). It requires an operation called tilting (changing the shape of the imaged object, eg, the position of the image plane or lens surface). vertically, horizontally, horizontal rotation, one which the movement of the vertical rotation or the like, for example, in the case of shooting looking up from the bottom to the top at a shooting of a building, which building top is deformed the shape of the small-through architecture This can be corrected to adjust the shape of the building.Because the range before and after the image is formed, that is, the focus range is narrow, the image plane or the lens surface is moved to move the object. Plane and image plane In other words, it is possible to match the focus glass surface and widen the range in which the surfaces fit . In addition , the photosensitive material (film) requires chemical post-processing such as development, washing, and fixing, so the film image cannot be seen in real time after shooting, and image modification or color correction of the image is easy. I couldn't do it. In addition, a video camera that uses magnetic tape or an electrophotographic camera that uses a floppy disk is an electronic camera that can be used by inserting it in front of the focus glass frame of a medium-format large-format view camera without removing the solid-state image sensor. The appearance of holders is awaited.

[Brief description of drawings]

FIG. 1 is a relationship diagram showing a relationship between devices.

FIG. 2 is a perspective view showing a photographing screen portion of the electrophotographic holder.

FIG. 3 is a side view showing that the electrophotographic holder is inserted into the view camera.

[Description of References] 1 ... Multiple solid-state imaging devices 2 ... Electrophotographic holder 3 ... Shooting screen section 4 ... View camera 5 ... Focusing surface section 6 ... Focus glass frame section 7・ ・ ・ Lens 8 ・ ・ ・ Recording / reproducing device 9 ・ ・ ・ Digital image processing device 10 ・ ・ ・ Monitor TV 11 ・ ・ ・ Electronic printer 12 ・ ・ ・ Connecting circuit 13 ・ ・ ・ Shutter control device

Claims (1)

[Scope of utility model registration request] 1. An electrophotographic holder having a plurality of solid-state image pickup devices installed on a photographing screen section, a recording / reproducing device for recording and reproducing an image formed by the plurality of solid-state image pickup devices, and the plurality of solid-state image pickup devices. An electrophotographic holder characterized in that it is composed of a monitor TV capable of receiving images and that each device is connected in a circuit.