Optical line sensor
AssigneeVienex Corporation
InventorsRyuta WATANABE, Osamu IWASAKI
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Abstract
A plurality of light receiving lenses are arranged along a main scanning direction. A plurality of light receiving elements are arranged in a line along the main scanning direction, and receive light transmitted through the plurality of light receiving lenses. The plurality of light receiving elements form at least two rows of reading lines. The light receiving lenses constitute a telecentric optical system, and a width W1 in a sub-scanning direction is smaller than a width W2 in the main scanning direction.
Claims28
An optical line sensor that reads, in a reading line extending in a main scanning direction, an inspection object conveyed in a sub-scanning direction, the optical line sensor comprising:
- a plurality of light receiving lenses arranged along the main scanning direction;
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- a plurality of light receiving elements arranged in a line along the main scanning direction and configured to receive light transmitted through the plurality of light receiving lenses,
- wherein the plurality of light receiving elements form at least two rows of the reading lines, and
- the light receiving lenses constitute a telecentric optical system, and a width in the sub-scanning direction is smaller than a width in the main scanning direction.
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Dependencies are inferred from the claim text.