Ellipsoidal gapless microlens array and method of fabrication

Details Ellipsoidal gapless microlens array and method of fabrication Ellipsoidal gapless microlens array and method of fabrication

2005-08-30

2008-05-20

Harrington, Alicia M. (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S628000

Reexamination Certificate

active

07375892

ABSTRACT:
Ellipse-shaped microlenses focus light onto unbalanced photosensitive areas, increase area coverage for a gapless layout of microlenses, and allow pair-wise or other individual shifts of the microlenses to account for asymmetrical pixels and pixel layout architectures. The microlenses may be fabricated in sets, with one set oriented differently from another set, and may be arranged in various patterns, for example, in a checkerboard pattern or radial pattern. The microlenses of at least one set may be substantially elliptical in shape. To fabricate a first set of microlenses, a first set of microlens material is patterned onto a support, reflowed under first reflow conditions, and cured. To fabricate a second set of microlenses, a second set of microlens material is patterned onto the support, reflowed under second reflow conditions, which may be different from the first conditions, and cured.

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Copy of International Search Report, mail date Dec. 27, 2006.

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