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US 6,714,325 B1Granted
Image reading device
AssigneeFuji Photo Film Co., Ltd.
InventorsYoshiharu Okino, Masaaki Konno
Life of this patent
Estimating the term…
Abstract
An image reading device in which an image can be read efficiently and at high speed and with high image quality with little heat being generated at a time of light emission, and the device can be made compact. After lights of respective colors are collected and focused, the light is diffused in a vicinity of a film. Therefore, almost all of lights emitted from LED chip groups can be guided to a surface of the film.
Claims10
An image reading device which, while a film on which an image is recorded is being conveyed, reads the image per predetermined color wavelength, comprising:
- plural light-emitting element groups in each of which a plurality of light-emitting elements, which emit light at substantially the same wavelength, are aligned linearly along a transverse direction of the film;
- deflecting means for deflecting optical axes of plural illuminated lights, which have respectively different wavelengths and are emitted from the plural light-emitting element groups, such that the optical axes coincide with one another;
- a focusing optical system which focuses, in a vicinity of the film, the plural illuminated lights which have passed through the deflecting means;
- and
- photoelectric converting elements which receive light which has passed through the film or has been reflected by the film, and subject the light to photoelectric conversion.
2 more elements
Dependencies are inferred from the claim text.