Photography – With power supply detail – Power distribution management
Reexamination Certificate
1999-05-12
2001-06-19
Mathews, Alan A. (Department: 2851)
Photography
With power supply detail
Power distribution management
C396S301000, C396S374000, C348S064000
Reexamination Certificate
active
06249651
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a camera for electronic photographing and photographing using films having functions of a photographing device for exposing an object image on a film and an electronic photographing device having an electronic image pickup element for converting the object image into an electrical signal.
Recently, a photographing camera having a function of confirming the object image photographed at the time of photographing is developed. For example, in Jpn. Pat. Appln. KOKAI Publication No. 1-114169, a single-lens reflex camera which additionally has a confirming function by transmitting a picture signal corresponding to an optical image obtained by changing the direction of light flux of the object and focusing the object image by use of a mirror interlocked with the shutter is disclosed.
Further, various types of digital cameras having monitor functions for confirming an object image photographed at the time of photographing are developed. In a monitor mounted on this type of digital camera, if a monitored image is turned OFF after a preset period of time has elapsed, an image which was displayed on the monitor immediately before turn-OFF of the monitored image is displayed again by turning ON the power switch.
The monitor used for confirmation at the time of photographing requires a large current. Therefore, it is preferable to turn OFF the monitor in the normal state and display the image only at the time of confirmation of the image from the viewpoint of energy saving.
However, in Jpn. Pat. Appln. KOKAI Publication No. 1-114169, it is disclosed that the image is confirmed by use of the monitor, but turn-OFF of the monitor is not described.
Further, in the above digital camera, the image is displayed again by turning ON the power switch again after the monitor is turned OFF after a preset period of time has elapsed. However, if re-display of the monitored image can be controlled only by turning ON the power switch again, it is not convenient for the user and the camera has a problem in its operability.
BRIEF SUMMARY OF THE INVENTION
Accordingly, an object of this invention is to provide a camera for electronic photographing and photographing using films capable of attaining energy saving of the camera without deteriorating the operability for the user.
A first object of this invention can be attained by a camera comprising a photographing device for exposing an object image on a film; an electronic photographing device having an electronic photographing element for converting the object image into an electrical signal; a storage circuit for storing an image signal output from the electronic photographing device; a monitor for displaying an electronic image based on the image signal; a control circuit for automatically turning OFF the monitor; a power supply switch of the camera; and an operating member of the camera; wherein the monitor is turned ON again and the newest image stored in the storage circuit is displayed on the monitor by operating the operating member while the monitor is set in the turn-OFF state.
A second object of this invention can be attained by a camera comprising a photographing device for exposing an object image on a film; an electronic photographing device having an electronic photographing element for converting the object image into an electrical signal; a storage circuit for storing an image signal output from the electronic photographing device; a monitor for displaying an electronic image based on the image signal; a control circuit for automatically turning OFF the monitor; and an operating member for setting the mode of the camera; wherein the monitor is turned ON again and the newest image stored in the storage circuit is displayed on the monitor by operating the operating member while the monitor is set in the turn-OFF state.
A third object of this invention can be attained by a camera comprising a photographing device for exposing an object image on a film; an electronic photographing device having an electronic photographing element for converting the object image into an electrical signal; a storage circuit for storing an image signal output from the electronic photographing device; a monitor for displaying an electronic image based on the image signal; a control circuit for automatically turning OFF the monitor; and an operating member for starting the photographing operation of the electronic photographing device; wherein the monitor is turned ON again and the newest image stored in the storage circuit is displayed on the monitor by operating the operating member while the monitor is set in the turn-OFF state.
A fourth object of this invention can be attained by a camera comprising a photographing device for exposing an object image on a film; an electronic photographing device for photographing an image substantially equivalent to an image exposed on the film in synchronism with the operation of the photographing device; a storage circuit for storing image data photographed by the electronic photographing device; a monitor for displaying an image photographed by the electronic photographing device; a control circuit for automatically turning OFF the monitor; and an operating member for starting the photographing operation of the electronic photographing device or setting the mode of the camera; wherein the monitor is turned ON again and the newest image stored in the storage circuit is displayed on the monitor by operating the operating member while the monitor is set in the turn-OFF state.
A fifth object of this invention can be attained by a camera comprising a photographing device for exposing an object image on a film; an electronic photographing device for photographing an image substantially equivalent to an image exposed on the film in synchronism with the operation of the photographing device; a storage circuit for storing image data photographed by the electronic photographing device; a monitor for displaying an image photographed by the electronic photographing device; a control circuit for automatically turning OFF the monitor; and an operating member for detecting the open/closed state of a lid of the camera; wherein the monitor is turned ON again and the newest image stored in the storage circuit is displayed on the monitor by operating the operating member while the monitor is set in the turn-OFF state.
Additional objects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out hereinafter.
REFERENCES:
patent: 5541707 (1996-07-01), Sasagaki et al.
patent: 5708882 (1998-01-01), Yokonuma et al.
patent: 5710954 (1998-01-01), Inoue
patent: 5867741 (1999-02-01), Muruyama et al.
Frishauf, Holtz Goodman, Langer & Chick, P.C.
Mathews Alan A.
Olympus Optical Co,. Ltd.
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