Photography – Having wireless remote control circuit – Camera release
Reexamination Certificate
1999-06-16
2001-08-07
Gray, David M. (Department: 2851)
Photography
Having wireless remote control circuit
Camera release
C396S333000, C396S429000, C348S064000
Reexamination Certificate
active
06272290
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a camera system that allows an object image to be simultaneously recorded on a silver halide film and in an electronic recording medium.
2. Description of the Related Art
Conventionally, there is known a digital camera by which an object image, taken by a photographing optical system, is converted into an electrical signal and is recorded in a recording medium. In the digital camera, the object image, which has been electrically recorded, can be observed through a monitor immediately after the recording operation, and can be easily processed by a personal computer.
On the other hand, in a silver halide film camera, an object image is recorded on a silver halide film, and is visualized by developing the film. The object image, obtained by the silver halide film camera, has a higher quality than that obtained by the digital camera.
Recently, a camera system, in which the digital camera is attached to the silver halide film camera, so that an object image can be recorded simultaneously on a silver halide film and in an electronic recording medium, has been proposed.
In the camera system, however, it is necessary to synchronize a photographing operation of the digital camera and a photographing operation of the silver halide film camera, so that an object image can be simultaneously recorded. Accordingly, in a conventional camera system, the silver halide film camera is required to have an electrical contact for connecting the digital camera thereto and, consequently, this necessitates a drastic change in a design of the silver halide film camera.
SUMMARY OF THE INVENTION
Therefore, an object of the present invention is to provide a camera system in which a digital camera is detachably mountable to a silver halide film camera having a design which is not substantially different to a conventional sliver halide film camera to which the digital camera cannot be attached.
According to the present invention, there is provided a camera system by which an object image is recordable on a silver halide film and in an electronic recording medium, the camera system comprising a silver halide film camera and a digital camera.
The silver halide film camera has a film recording device to record the object image on the silver halide film, and a signal receiving device that receives an operation control signal so that the silver halide film camera is operated. The digital camera has a digital recording device to electronically record the object image in the electronic recording medium, and a signal output device that outputs the operation control signal to the silver halide film camera. The operation control signal is received by the signal receiving device when the digital camera is attached to the silver halide film camera.
Further, according to the present invention, there is provided a camera system by which an object image can be recorded on a silver halide film and in an electronic recording medium, the camera system comprising a silver halide film camera and a digital camera.
The silver halide film camera has a film recording device to record the object image on the silver halide film, and a signal receiving device, which receives a remote control signal output by a remote controller. The silver halide film camera is controllable by the remote control signal. The digital camera has a digital recording device to electronically record the object image in the electronic recording medium, and a signal output device that outputs an operation control signal by which the silver halide film camera is controlled, when the digital camera is attached to the silver halide film camera.
Furthermore, according to the present invention, there is provided a digital camera detachably attachable to a silver halide film camera in which an object image is recordable on a silver halide film, the digital camera comprising a digital recording device and a signal output device.
The digital recording device electronically records the object image in an electronic recording medium. The signal output device optically transmits a control signal to the silver halide film camera, so that the object image is recorded in the silver halide film simultaneously with an operation of the digital recording device.
REFERENCES:
patent: 4462666 (1984-07-01), Orban
patent: 4825290 (1989-04-01), Iida
patent: 4920371 (1990-04-01), Kaneko
patent: 5307168 (1994-04-01), Tashiro
patent: 5434614 (1995-07-01), Dainty
patent: 5546121 (1996-08-01), Gotanda et al.
patent: 5777667 (1998-07-01), Miyake et al.
Asahi Kogaku Kogyo Kabushiki Kaisha
Gray David M.
Greenblum & Bernstein P.L.C.
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