Optical device, image reading apparatus, and image forming apparatus for suppressing stray light using light shielding body that overlap rows of lens array and covered by regulating body with through holes
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United States of America Patent
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Oct 25, 2022
Grant Date -
Jul 29, 2021
app pub date -
Aug 3, 2020
filing date -
Jan 27, 2020
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An optical device includes a lens body including plural lenses of which optical axes are arranged alongside each other, and having an intermediate image forming surface for forming an erect real image of equal magnification formed in an optical path, a light shielding body that is provided to face a light incident surface of the lens body, and includes a transmitting portion that is positioned on the optical axes of the plural lenses and transmits light and a light shielding unit that is positioned on a portion other than the optical axes of the plural lenses and shields the passage of light, and a regulating body that is provided to face a light incident surface of the light shielding body, includes an opening narrower than the transmitting portion, and regulates a part of light toward the transmitting portion.
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