Controlling lens shape in a microlens array

Details Controlling lens shape in a microlens array Controlling lens shape in a microlens array

2006-06-27

2006-06-27

Ben, Loha (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S621000, C430S311000, C430S321000, C438S069000, C438S151000, C257S232000, C257S233000, C257S432000, C216S026000

Reexamination Certificate

active

07068432

ABSTRACT:
A semi-conductor based imager includes a microlens array having microlenses with modified focal characteristics. The microlenses are made of a microlens material, the melting properties of which are selectively modified to obtain different shapes after a reflow process. Selected microlenses, or portions of each microlens, are modified, by exposure to ultraviolet light, for example, to control the microlens shape produced by reflow melting. Controlling the microlens shape allows for modification of the focal characteristics of selected microlenses in the microlens array.

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