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Optical media, read inhibiting agents and methods of making and using same

Inactive Publication Date: 2006-05-18
FLEXPLAY TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024] These and other features and advantages of the present invention will be presented in more detail in the followi

Problems solved by technology

Data storage media with the opaque / semi-opaque layer can no longer be played in media players.

Method used

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  • Optical media, read inhibiting agents and methods of making and using same
  • Optical media, read inhibiting agents and methods of making and using same
  • Optical media, read inhibiting agents and methods of making and using same

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0138] injection-molded 0.62 mm polycarbonate substrate with reverse-mastered DVD5* data features; sputter coated with a fully reflective metallic (aluminum) film: nominally 60 nm thick

[0139] oxygen-active adhesive material: TipSOC chemistry, rapid kinetics—nominally 10 hour total deblocked life in limited-play DVD without diffusion barrier: nominally 50 □m thick

[0140] injection-molded 0.56 mm polycarbonate featureless (mirror) substrate; sputter coated with 2 nm aluminum-oxide film (internal surface)

[0141] acrylate edge-coating to reduce disc-edge diffusion rates, allowing bulk oxygen diffusion to dominate

[0142] The sputter coated thin film of aluminum-oxide provides a significant barrier to oxygen diffusion. Oxygen permeation rates to the oxygen-active adhesive are limited by grain-boundary diffusion through the sputter coated aluminum-oxide thin film. For room-temperature diffusion processes, grain boundary diffusion rates are several orders of magnitude faster than bulk diff...

example a

[0145] injection-molded 0.62 mm polycarbonate substrate with reverse-mastered DVD5* data features; sputter coated with a fully reflective metallic (aluminum) film: nominally 60 nm thick

[0146] oxygen-active adhesive material: TipSOC chemistry, normal kinetics—nominally 30 hour total deblocked life in limited-play DVD without diffusion barrier: nominally 50 □m thick

[0147] injection-molded 0.56 mm polycarbonate featureless (mirror) substrate; sputter coated with 2 nm aluminum-oxide film (internal surface), i.d. sputtering mask 48.0 mm diameter

example b

[0148] injection-molded 0.62 mm polycarbonate substrate with reverse-mastered DVD5* data features; sputter coated with a fully reflective metallic (aluminum) film: nominally 60 nm thick

[0149] oxygen-active adhesive material: TipSOC chemistry, rapid kinetics—nominally 10 hour total deblocked life in limited-play DVD without diffusion barrier: nominally 50 □m thick

[0150] injection-molded 0.56 mm polycarbonate featureless (mirror) substrate; sputter coated with 2 nm aluminum-oxide film (internal surface)—i.d. sputtering mask at 30.0 mm diameter; secondary sputter coating, nominal 2 nm aluminum-oxide film—i.d. sputtering mask at 48.0 mm diameter

Authoring

[0151] A limited play optical device becomes unreadable over time (e.g., 1-5 days), typically following some stimulus, such as exposure to oxygen. In embodiments of the present invention, The optical device is designed and authored, or the reading device is programmed, so that the reading device to read from a desired region before ...

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PUM

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Abstract

Apparatuses, products, devices and methods of manufacture consistent with the invention include optically readable media with at least one mechanism, chemical, agent, and / or process for limiting the time period that at least a portion of encoded information can be read and / or accessed by an optical beam and / or reader capable of reading the encoded information.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] Priority is hereby claimed under 35 U.S.C. 119(e) from U.S. Provisional Patent Application No. 60 / 627,787 filed Nov. 12, 2004; U.S. Provisional Patent Application No. 60 / 627,638 filed Nov. 12, 2004; U.S. Provisional Patent Application No. 60 / 627,209 filed Nov. 12, 2004; U.S. Provisional Patent Application No. 60 / 627,386 filed Nov. 12, 2004; and U.S. Provisional Patent Application No. 60 / 711,616 filed Aug. 26, 2005. The disclosures of all of the above prior Patent Applications are hereby incorporated by reference as if set forth herein in their entirety.FIELD OF THE INVENTION [0002] The present invention relates generally to optically readable media. More specifically, apparatuses, products, devices and methods of manufacture consistent with the invention are disclosed that include numerous configurations and / or novel designs for limiting the time period that at least a portion of the encoded information stored on the optically readable ...

Claims

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Application Information

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IPC IPC(8): B32B3/02
CPCG11B7/24038G11B7/241G11B7/2533G11B7/2534G11B7/256G11B7/259G11B7/2595G11B7/26G11B20/00086G11B20/00608G11B20/0084G11B23/282G11B2020/1288G11B2220/2541G11B2220/2579G11B7/246C09B67/00G11B7/257B32B3/02
Inventor LEBLANC, ARTHUR R. IIITHOMPSON, ROBERT F.CINCOTTA, LOUISLINDHOLM, EDWARD PAULPAULUS, JOSEPH W.
Owner FLEXPLAY TECH INC
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