Lens array, an exposure head and an image forming apparatus

Details Lens array, an exposure head and an image forming apparatus Lens array, an exposure head and an image forming apparatus

2009-01-21

2010-12-07

Choi, William C (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C347S241000

Reexamination Certificate

active

07848023

ABSTRACT:
An exposure head, includes: a lens array that includes lenses that are arranged in a first direction and in a second direction orthogonal to the first direction; and a light emitting element substrate that is provided with light emitting elements that emit lights to be imaged by the lenses, wherein a relationship defined by a following formula: 1<L1/L2is satisfied, where the symbol L1denotes a length of the lens in the first direction and the symbol L2denotes a length of the lens in the second direction.

REFERENCES:
patent: 6980366 (2005-12-01), Ishikawa
patent: 06-278314 (1994-10-01), None
patent: 2005-276849 (2005-10-01), None

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