IMAGE SENSOR UNIT AND IMAGE READING DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Jan 9, 2020
app pub date -
Sep 19, 2019
filing date -
Sep 19, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
An image sensor unit includes: a linear light source that illuminates a document with a light; a first erecting equal-magnification lens array and a second erecting equal-magnification lens array arranged in the stated order away from the document so as to receive a light reflected from the document and form an erecting equal-magnification image; a slit provided on an intermediate imaging plane between the first erecting equal-magnification lens array and the second erecting equal-magnification lens array; a diffraction grating that disperses a light output from the second erecting equal-magnification lens array; and a linear image sensor that receives a light dispersed by the diffraction grating.
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