Computer graphics processing and selective visual display system – Plural physical display element control system – Optical means interposed in viewing path
Reexamination Certificate
2007-04-24
2007-04-24
Awad, Amr A. (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Optical means interposed in viewing path
C349S062000
Reexamination Certificate
active
10782972
ABSTRACT:
An optical device includes a transparent material layer having a desired curved surface configuration, a layer including a variable refractive index material having a dielectric constant anisotropy, at least two transparent electrodes arranged to sandwich the transparent material layer and the variable refractive index material, and a driving device supplying a voltage including driving frequencies f1and f2between the transparent electrodes. The difference Δ∈ in the dielectric constant of the variable refractive index material due to the anisotropy is positive at one of the driving frequencies and negative at the other driving frequency.
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Date Munekazu
Kato Kinya
Kohda Shigeto
Sakai Shigenobu
Suyama Shiro
Awad Amr A.
Nippon Telegraph and Telephone Corporation
Sartori Michael A.
Sheng Tom
Venable LLP
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