Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate
2011-03-22
2011-03-22
Choi, William C (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
C065S140000
Reexamination Certificate
active
07911701
ABSTRACT:
A micro lens array sheet includes a sheet type base and a plurality of micro lenses arranged on the base. The surface of each micro lens includes a convex part and a peripheral edge part. The convex part has a spherical or elliptical surface. The peripheral edge part is formed between the convex part and the base and curved in a concave shape. Since the surface of the peripheral edge part is curved in a concave shape, the flat part can be narrower than a conventional micro lens array sheet. Therefore, luminance unevenness attributable to the flat part can be suppressed.
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Hayashihara Shirou
Ishihara Nobuyasu
Kodera Yuji
Yamada Yukinori
Birch & Stewart Kolasch & Birch, LLP
Choi William C
Hitachi Maxell Ltd.
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