Photosensor array with binary lens elements
AssigneeLSI Logic Corporation
InventorMichael D. Rostoker
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Abstract
Methods of etching optical elements in association with photosensitive elements are described. In some of the arrangements, the optical elements are formed integrally with a substrate containing the photosensitive elements. In other arrangements, an optical element is mounted to a package, or the like, containing the substrate and photosensitive elements. In other arrangements, two or more optical elements are employed, including conventional refractive elements, refractive focusing elements, and refractive beam splitting elements. Utility as solid state image sensors is discussed. Utility for monochromatic and color imaging is discussed.
Claims20
A photosensor array, comprising:
- a plurality of lenses for forming a substantially identical light image on laterally spaced areas of a surface respectively;
- and
- a plurality of photosensors disposed on said surface within said laterally spaced areas for receiving different portions of said light image respectively such that the photosensors in aggregation receive substantially all of said light image.
A photosensor array, comprising:
- a plurality of photosensor units for aggregately sensing a light image, each photosensor unit comprising:
- a two-dimensional binary diffractive lens for diffractively forming three substantially identical segments of said light image in three different colors on three rotationally spaced areas of a surface respectively;
- and
- three photosensors disposed on said surface at said three rotationally spaced areas for receiving said segments respectively.
A photosensor array, comprising:
- a plurality of photosensor units for aggregately sensing a light image, each photosensor unit comprising:
- a multi-dimensional binary diffractive lens for diffractively forming a plurality of substantially identical segments of said light image in a plurality of different colors on a plurality of rotationally spaced areas respectively;
- and
- a plurality of photosensors at said plurality of rotationally spaced areas for receiving said segments respectively.
Dependencies are inferred from the claim text.