Image reading apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorYasunobu Sakaguchi
Life of this patent
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Abstract
An automatic focusing (AF) control section performs focus detection for each of focusing regions provided in an image reading area to detect positions of an image-forming lens where the focusing regions are focused as partial focusing positions. A loading condition judgment unit judges the loading condition of a photographic film by inspecting a curl of the image reading area based on each of the partial focusing positions. When the image reading area is bowed such that the center thereof is projected toward an area CCD, the photographic film is judged being loaded in reverse, and a warning message is displayed on a display. In this case, image reading of the photographic film is not executed.
Claims7
An image reading apparatus for reading an image from an original loaded in a film carrier, by focusing said image on a photoreceptive surface of a photoelectric converter by an image-forming lens, said original having a reading side which is one side of a base with said image recorded thereon, said image reading apparatus comprising:
- a partial focusing position detector for performing focus detection for each of focusing regions provided in a image reading area on said original so as to detect positions of said image-forming lens where said focusing regions are focused as partial focusing positions;
- and
- a loading condition judgment unit for judging whether said original is loaded in said film carrier properly, with said reading side facing said photoreceptive surface, by inspecting curl of said photographic film based on said partial focusing positions.
Dependencies are inferred from the claim text.