Lens array, light emitting diode head, exposure device,...

Details Lens array, light emitting diode head, exposure device,... Lens array, light emitting diode head, exposure device,...

2011-04-26

2011-04-26

Martinez, Joseph (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S740000

Reexamination Certificate

active

07933070

ABSTRACT:
A lens array includes a plurality of lens assembly members with a plurality of lenses and a light blocking member with a plurality of apertures arranged therein. The lens assembly members are arranged so that an optical axis of each of the lenses of one of the lens assembly members is aligned with an optical axis of each of the lenses of another of the lens assembly members.Further, the lens assembly members and the light blocking member are arranged so that the following relationship is satisfied:(PX2)2+(PY4)2≤RA⁢LO-FFwhere PY is a pitch of the lenses in one row, PX is a pitch of the rows, F is a focal length of each of the lenses, LO is a distance between each of the lenses and an object surface thereof, and RA is a distance between the optical axis and an inner surface of the aperture.

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