Lithographically fabricated holographic optical identification element
AssigneeIllumina, Inc.
InventorAlan Kersey
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Abstract
A method for fabricating an optical identification element is provided, wherein a removable plate or substrate having photosensitive material fabricated thereon, one or more gratings are written on the photosensitive material, then lines are etched to create one or more separate optical identification elements. The one or more gratings may be written by exposing the photosensitive material to ultraviolet (UV) light. The lines may be etched to create the one or more separate optical identification elements by photolithography to define/create the same.
Claims40
A method for fabricating an optical identification element wherein a removable plate or substrate having photosensitive material fabricated thereon is provided, one or more gratings are written on the photosensitive material, and lines are etched to create one or more separate optical identification elements.
An optical arrangement for fabricating an optical identification element, comprising:
- a means or device for providing a removable plate or substrate having a photosensitive material fabricated thereon;
- a means or device for writing one or more gratings on the photosensitive material;
- and
- a means or device for separating and creating one or more separate optical identification elements, including by etching lines on the photosensitive material.
Dependencies are inferred from the claim text.