1. A digital still camera comprising:
a solid-state electronic image sensing device for sensing the image of a subject repeatedly for an exposure time over which camera shake is thought not to occur, and repeatedly outputting image data representing the image of the subject;
a combining device for generating one frame of a combined image obtained by combining the image of the subject represented by image data that has been output from said solid-state electronic image sensing device with the image of the subject represented by image data that was output from said solid-state electronic image sensing device by an immediately preceding image sensing operation, in such a manner that the images of the subject coincide;
a combining control device for controlling said combining device so as to repeatedly execute processing for generating one frame of a combined image updated by combining the combined image, which is the result of combination by said combining device, with the image of the subject represented by image data that has been output from said solid-state electronic image sensing device, in such a manner that the images coincide; and
a recording control device for recording, on a recording medium in response to an exposure-halt command and on the basis of timing at which the exposure-halt command has been applied, image data representing the combined image updated in the processing in said combining device that is based upon said combining control device.
2. The camera according to claim 1, further comprising a display device for displaying the combined image obtained by the processing in said combining device controlled by said combining controller.
3. The camera according to claim 1, wherein said solid-state electronic image sensing device halts image sensing by sensing a first plurality of frames of images of the subject after the exposure-halt command is applied;
further comprising a temporary memory for temporarily storing the image data, which is repeatedly output from said solid-state electronic image sensing device, while updating a second plurality of frames of image data that is greater than the first plurality of frames.
4. The camera according to claim 1, wherein said recording control device records the second plurality of frames of image data, which has been stored in said temporary memory, on the recording medium in addition to the image data representing the updated combined image.
5. The camera according to claim 2, wherein said display device displays a histogram of the displayed combined image in addition to the combined image.
6. The camera according to claim 1, further comprising:
a determination device for determining whether the updated combined image has an appropriate brightness; and
an alert device for notifying of appropriate brightness in response to a determination by said determination device that the updated combined image has an appropriate brightness.
7. The camera according to claim 1, further comprising a control device for controlling said solid-state electronic image sensing device so as to halt image sensing, in response to a determination by said determination device that the updated combined image has an appropriate brightness.
8. The camera according to claim 1, further comprising a shutter-release button;
wherein said solid-state electronic image sensing device repeats sensing of the image of the subject while said shutter-release button is being pressed and halts image sensing in response to release of said shutter-release button.
9. The camera according to claim 1, wherein said shutter-release button is of the two-stage-stroke type; and
said solid-state electronic image sensing device repeats sensing of the image of the subject in response to pressing of said shutter-release button through the first stage of its stroke, and halts sensing of the image of the subject in response to pressing of said shutter-release button through the second stage of its stroke.
10. A method of controlling a digital still camera, comprising:
a step of a solid-state electronic image sensing device sensing the image of a subject repeatedly for an exposure time over which camera shake is thought not to occur, and repeatedly outputting image data representing the image of the subject;
a step of a combining device generating one frame of a combined image obtained by combining the image of the subject represented by image data that has been output from the solid-state electronic image sensing device with the image of the subject represented by image data that was output from the solid-state electronic image sensing device by an immediately preceding image sensing operation, in such a manner that the images of the subject coincide;
a step of a combining control device controlling the combining device so as to repeatedly execute processing for generating one frame of a combined image updated by combining the combined image, which is the result of combination by the combining device, with the image of the subject represented by image data that has been output from the solid-state electronic image sensing device; and
a step of a recording control device recording, on a recording medium in response to an exposure-halt command and on the basis of timing at which the exposure-halt command has been applied, image data representing the combined image updated in the processing in the combining device that is based upon the combining control device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A fluid heating device arranged on a fluid circulating path for heating fluid flowing through the fluid circulating path, comprising:
a closed magnetic circuit iron core,
a primary coil wound around the iron core, and
a secondary coil wound around a conductor formed with a through-hole for passing circulating fluid, wherein
both ends of the secondary coil are electrically short-circuited to each other, and
heat generated by a current flowing the secondary coil short-circuited is conducted to the fluid flowing through the through-hole.
2. The heating medium passing roller device comprising:
the heating device according to claim 1 arranged on a fluid circulating path, and
a roller heated, when fluid heated by the heating device flows within the roller, wherein
a processed object in contact with the surface of the roller is heat treated.
3. The heating medium passing roller device according to claim 2, further comprising:
a sealing chamber extending in the same direction as the axial direction of the roller, the sealing chamber being formed within a wall of the roller, wherein
the sealing chamber is sealed with a gas-liquid two-phase heating medium.