Image reading device and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsIssei Abe, Kiichiro Nishina, Masahiro Itoh, Kazuhiro Fujita
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Abstract
Disclosed is an image reading device configured to read information of an object, including an imaging optical system configured to image an image of an object and an image-capturing device configured to image-capture at least a portion of the image imaged by the imaging optical system, wherein the imaging optical system includes a first optical system configured to image an intermediate image of the object and a second optical system configured to image the imaged image of the intermediate image.
Claims12
An image reading device, comprising:
- an imaging optical system configured to provide a final image conjugate to an object;
- and
- an image capturing device configured to capture at least a portion of the final image and read information of the object therefrom,
- wherein
- the imaging optical system comprises a first optical system configured to provide an intermediate image conjugate to the object and a second optical system configured to provide the final image conjugate to the intermediate image, and
- the first optical system comprises a reflection surface having a positive power and the second optical system comprises a lens system having an optical axis and having a positive power.
An image reading device, comprising:
- an imaging optical system configured to provide a final image conjugate to an object;
- and
- an image capturing device configured to capture at least a portion of the final image and read information of the object therefrom,
- wherein
- the imaging optical system comprises a first optical system configured to provide an intermediate image conjugate to the object and a second optical system configured to provide the final image conjugate to the intermediate image, and
- the imaging optical system further comprises at least one reflection surface folding an optical path from the object to the final image and having no power.
An image forming apparatus, comprising:
- an image reading device, the image reading device comprising,
- an imaging optical system configured to provide a final image conjugate to an object,
- an image capturing device configured to capture at least a portion of the final image and read information of the object therefrom,
- an image carrier, and
- a device configured to form an image on the image carrier based on the information of the object,
- wherein
- the imaging optical system comprises a first optical system configured to provide an intermediate image conjugate to the object and a second optical system configured to provide the final image conjugate to the intermediate image.
Dependencies are inferred from the claim text.