Micro-lenses for CMOS imagers and method for manufacturing micro-lenses
AssigneeMicron Technology, Inc.
InventorsUlrich Boettiger, Jin Li
Life of this patent
Estimating the term…
Abstract
A micro-lens and a method for forming the micro-lens is provided. A micro-lens includes a substrate and lens material located within the substrate, the substrate having a recessed area serving as a mold for the lens material. The recessed can be shaped such that the lens material corrects for optical aberrations. The micro-lens can be part of a micro-lens array. The recessed area can serve as a mold for lens material for the micro-lens array and can be shaped such that the micro-lens array includes arcuate, non-spherical, or non-symmetrical micro-lenses.
Claims17
1-11. (canceled)
An imager, comprising:
- a plurality of pixel cells each having a photosensor;
- a plurality of color filters respectively associated with said pixel cells;
- and
- a micro-lens array including a plurality of micro-lenses each associated with one of said pixel cells, wherein said micro-lens array effects a change in focal point between said micro-lenses to correct for optical aberrations.
An imager, comprising:
- a plurality of pixel cells each having a photosensor;
- a light shield for directing electromagnetic radiation to each photosensor;
- a color filter assembly providing respective color filters for said plurality of pixel cells;
- a substrate;
- and
- a first plurality of lens structures respectively associated with said pixel cells for focusing light on respective photosensors, each said lens structure comprising lens material located within a recessed area of the substrate which serves as a mold for the lens material.
26-48. (canceled)
Dependencies are inferred from the claim text.