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US 2002/0163642 A1Published application
Optical biodiscs with reflective layers
AssigneesNagaoka & Co., Ltd., Burstein Technologies, Inc.
InventorsJim V. Zoval, Horacio Kido, Jorma Antero Virtanen
Life of this patent
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Abstract
An optical biodisc has a substrate, a first reflective layer over the substrate, an opening in the first reflective layer for receiving an investigational feature, and a second reflective layer over the opening for reflecting light transmitted through the substrate.
Claims28
An optical biodisc comprising:
- a light transmissive substrate;
- a first reflective layer over the substrate having at least one opening for receiving an investigational feature;
- a second reflective layer at least over the opening;
- and
- a cap over the second reflective layer.
2 more elements
A biodisc system comprising:
- a biodisc having first and second reflective layers spaced apart from each other;
- a light source for directing light to the biodisc;
- and
- a detector for detecting light reflected from the first reflective layer of the biodisc, and for detecting light from the second reflective layer when the light is directed to the opening.
1 more element
A method for forming an optical disc, comprising:
- forming a first reflective layer over a substrate such that there is at least a first portion without the first reflective layer;
- forming a second reflective layer on a second portion of a cap;
- and
- assembling the substrate and cap so that the substrate and cap are parallel along a first direction and the first portion and second portion are aligned along a second direction perpendicular to the first direction.
1 more element
An optical disc having a substrate and a wobble groove in the substrate, the wobble groove being filled with a metal.
Dependencies are inferred from the claim text.