Optical write-in head, image forming apparatus using the...

Details Optical write-in head, image forming apparatus using the... Optical write-in head, image forming apparatus using the...

2005-05-10

2005-05-10

Tran, Huan (Department: 2861)

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

C347S258000

Reexamination Certificate

active

06891558

ABSTRACT:
An optical write-in head for obtaining a clear image even in printing at a relatively high recording density without generating strip-like irregularities in most cases. The optical write-in head applies light carrying image information to a photosensitive substance. The optical write-in head includes an array light source having a plurality of dot light sources, each of which selectively emits the light corresponding to the image information, and a lens array facing the array light source. The lens array has a plurality of lens elements which corresponds to the plurality of dot light sources respectively. An angular aperture θ of each of the lens elements is set in a range of about 14° to 18°.

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