Abstract: A shutter device includes a leading drive lever configured to move leading blades to a closed position at which the leading blades cover an opening and to move the leading blades to an open position at which the leading blades open the opening; a leading charge mechanism configured to rotate a leading charge lever in a charge direction to generate biasing force and to rotate, using the biasing force of the leading drive spring, the leading charge lever in a drive direction to rotate the leading drive lever in an opening direction; a leading lock lever configured to lock the leading charge lever having rotated in the charge direction; a leading attractive unit configured to hold, using electromagnetic force, the leading lock lever locking the leading charge lever; and a leading biasing mechanism configured to bias the leading lock lever in a release direction.

Abstract: Electronic systems, devices and methods are provided to accurately measure both food intake and physical activity in a subject. A device is provided to be placed on a subject which records video as well as other physiological and/or environmental data. Video data can be analyzed along with other data obtained by the device to determine food consumption and physical activity of the subject, much of which is accomplished by automated computer-implemented processes.

Abstract: A camera having a mirror drive mechanism, for rotating a movable mirror, includes a slider supported on a side of the movable mirror to be linearly movable in a vertical direction corresponding to an up-and-down rotation of the movable mirror, the slider including a cam follower; an end-face cam member positioned above a mirror up-and-down pivot, about which the movable mirror pivots, to be rotatable about a vertical rotational shaft, a cam follower provided on the slider is in contact with the end-face cam member so that the end-face cam member changes a vertical position of the slider via an end-face cam and the cam follower by rotating; and an end-face cam driver. A control apparatus for a cam drive mechanism and a method of controlling a cam drive mechanism are also provided.

Abstract: In a single-lens reflex camera, the rotation center of a lever used for driving a shutter device is arranged rearward of a shutter device with respect to an optical axis, and the lever end (point of action) is arranged in front of the shutter device with respect to the optical axis. Thereby, compactness of the camera body can be realized.

Abstract: There are provided a driving device and a camera which are compact in size and inexpensive even with the use of two motors, which allow relevant mechanisms to be laid out freely to thereby simplify motor controlling sequences, and which ensure positive power transmission operations even upon abnormal load change during film rewinding. First and second planetary mechanisms are responsive to rotation of a first motor in a desired direction, for revolving in a direction corresponding to the desired direction to transmit a driving force of the first motor. A first driving system is disposed to have the driving force of the first motor transmitted thereto via the first planetary mechanism when the first motor rotates in a first direction. A second driving system is disposed to have the driving force of the first motor transmitted thereto via the first planetary mechanism when the first motor rotates in a second direction.

Abstract: A camera has a first charge mechanism for charging a mirror, a second charge mechanism for charging an aperture diaphragm, a third charge mechanism for charging a shutter, an exposure preparation mechanism for performing an exposure preparation operation in response to a releasing operation, a selector for distinguishing between single-shot photographing and continuous photographing, a first detector for detecting completion of charging of the mirror, a second detector for detecting completion of charging of the aperture diaphragm, a third detector for detecting completion of charging of the shutter, and a controller for executing a flow of control such that, when the selector detects continuous photographing being performed and in addition the first and second detectors detect completion of charging of the mirror and the aperture diaphragm, the exposure preparation operation is started irrespective of the result of detection by the third detector.

Abstract: A motor-driven single-lens reflex camera which controls and executes, through forward and reverse rotation of a single motor, a mirror up/down operation and a shutter charge operation by a mirror/shutter driving system, and also a film winding/rewinding operation by a film feeding system. The mirror up and the shutter charge release operations are executed through forward rotation of the motor, and the mirror down, the shutter charge and the film winding/rewinding operations are executed through reverse rotation of the motor. Thus the speedy film feeding after exposure can be made without stopping or reversing drive of the motor.

Abstract: A camera having a cocking mechanism for a shutter and/or mirror, and a lithium battery supplying power to the cocking mechanism. The cocking operating of the mechanism is controlled to be executed intermittently if the cocking operation is not completed within a first predetermined time interval due to low power of the lithium battery.

Abstract: A fixed-focus camera having a retractable close-up lens, fixed-focus lens, infrared filter, and optical low-pass filter disposed along an optical axis within a housing. The close-up lens is switchable between a close-up position coaxial with the optical axis and a far position not coaxial with the optical axis. Light received from a target passes through an aperture in the housing and then through the lenses and filters. An image sensor receives the filtered light and outputs a two-dimensional array signal of corresponding voltages proportional to the energy of light striking each sensing element. The voltage signal from the image sensor is filtered using a high-pass filter and the high-frequency components of the signal are measured to determine a relative focal value for the light received from the target.