Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1996-10-03
1998-06-16
Coles, Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
358298, 358486, 348 96, 348 97, 348 98, 2502013, 2502012, 250204, 25055902, H04N 104, H04N 5253, G01J 136, G01N 2186
Patent
active
057679894
ABSTRACT:
The improved image inputting apparatus for reading the image recorded on a transmission original comprises: a light source; an image sensor for photoelectrically reading the light that has issued from the light source and which has been transmitted through the original; an imaging lens for permitting the transmitted light to be focused on the image sensor; a focusing device for automatically adjusting a focus of the imaging lens; and a control device for controlling the focusing device before starting the reading of a new image group such that only the first frame of the image group is subjected to one-step automatic focusing or two-step automatic focusing consisting of coarse and fine adjustments whereas the other frames are not subjected to focusing but image reading is performed adopting the focus state of the first frame or are subjected to automatic focusing comprising only fine adjustment. The apparatus can allow projecting light that bears the image recorded on strips or slides to form a satisfactorily and accurately focused image on an image sensor such as CCD sensor, and also permit rapid and efficient image reading and thereby contribute to an improvement in the efficiency with which output images can be produced.
REFERENCES:
patent: 4523829 (1985-06-01), Eguchi et al.
patent: 5508825 (1996-04-01), Kataoka
patent: 5568270 (1996-10-01), Endo
Coles Edward L.
Fuji Photo Film Co. , Ltd.
Lamb Twyler M.
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