Optical information recording medium based on interference...

Details Optical information recording medium based on interference... Optical information recording medium based on interference...

2008-04-25

2010-02-09

Dinh, Tan X (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C369S275400

Reexamination Certificate

active

07660227

ABSTRACT:
An improved light-readable information recording medium is provided that comprises an optical data storage structure having lands and pits, in which the depth of the pits is about:λ2⁢n⁢m1+MT2,wherein λ is the wavelength of light used to read the information recording medium, m is the order of interference selected from a group consisting of odd integers, MTis the transverse magnification, and n is the refractive index encountered by the reading light inside the pits. The invention also provides an improved optical reading system with the parameters satisfying the relationship:nd=λ2⁢n⁢m1+MT2,wherein λ is the wavelength of light used to read the information recording medium, m is the order of interference selected from a group consisting of odd integers, MTis the transverse magnification, n is the refractive index encountered by the reading light inside the pits, and d is the depth of the pits.

REFERENCES:
patent: 4041530 (1977-08-01), Kramer et al.
patent: 4965153 (1990-10-01), Imataki et al.
patent: 5068846 (1991-11-01), Kramer
patent: 5144552 (1992-09-01), Abe
patent: 5182743 (1993-01-01), Tinet
patent: 5475537 (1995-12-01), Kobayashi et al.
patent: 5995481 (1999-11-01), Mecca
patent: 6771585 (2004-08-01), Li et al.
patent: 6826143 (2004-11-01), Kermani
patent: 7339875 (2008-03-01), Maeda

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