Optical: systems and elements – Polarization without modulation – Polarization variation over surface of the medium
Reexamination Certificate
2006-02-21
2006-02-21
Juba, Jr., John (Department: 2872)
Optical: systems and elements
Polarization without modulation
Polarization variation over surface of the medium
C359S485050, C359S900000
Reexamination Certificate
active
07002742
ABSTRACT:
This invention has the polarizing function of polarizing an input beam and a non-reflecting function of suppressing reflection of the input beam, wherein at least one side of a light-transmissive substrate1has a polarizing portion4with a striped structure formed by multiple alternating light-transmissive dielectric layers2a,2b. . . and metallic film layers3a,3b. . . . Its characteristics are improved if the metallic film layers are very thin and flat, with a target thickness in the range from 5 to 20 nm and variation of film thickness within the range of ±10%.
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Imaizumi Nobuo
Kasai Yoshihito
Sato Toshimichi
Shiroki Ken-ichi
Jr. John Juba
Namiki Seimitsu Houseki Kabushiki Kaisha
Nixon & Peabody LLP
Studebaker Donald R.
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