Optical: systems and elements – Optical modulator – Light wave directional modulation
Reexamination Certificate
2006-09-12
2006-09-12
Sugarman, Scott J. (Department: 2873)
Optical: systems and elements
Optical modulator
Light wave directional modulation
C359S253000, C349S113000
Reexamination Certificate
active
07106495
ABSTRACT:
A substrate is provided with a light reflection film in which the heights of a plurality of convex portions or the depths of concave portions formed on a base material are specified to be substantially the same. The two-dimensional shapes of the plurality of convex portions or concave portions are specified to be the two-dimensional shapes of independent circles and polygons, or of either of them. In addition, the plurality of convex portions or concave portions are arranged in the direction of the plane on a random basis. The substrate is formed using a mask in which light transmission portions or light non-transmission portions are formed in units of dots, the number thereof being smaller than the number of dot regions. The dots are arranged irregularly in each of the units, and a plurality of units are included.
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Communication from Chinese Patent Office re: counterpart application.
Examination Report issued on Aug. 24, 2004, for the cooresponding Japanese Publication No. 2002-108528.
Communication from Japanese Patent Office re: counterpart application.
Communication from Japanese Patent Office re: related application.
Communication from Japanese Patent Office regarding related application.
Matsuo Mutsumi
Otake Toshihiro
Tsuyuki Tadashi
Hanig Richard
Seiko Epson Corporation
Sugarman Scott J.
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