Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements
Reexamination Certificate
2005-05-31
2005-05-31
Ben, Loha (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By surface composed of lenticular elements
C359S456000, C359S457000, C348S786000, C348S779000
Reexamination Certificate
active
06900945
ABSTRACT:
A lenticular lens sheet4comprises a plurality of lens elements of incidence21arranged on the incidence side, and a plurality of lens elements of emergence22arranged on the emergence side. The light that has passed through each lens element of incidence21converges via the protruding apex of the corresponding lens element of emergence22. The lens plane of the center portion C of each lens element of emergence22, the width of this portion C being a half of the total lens width L (i.e., L/2), is in the shape defined by a curved line fulfilling the conditions expressed by the following numerical formulae (1) to (4), and the lens plane of each side portion S of each lens element of emergence22, the width of this portion S being a quarter of the total lens width L (i.e., L/4), is in the shape defined by a curved line fulfilling the conditions expressed by the following numerical formulae (5) to (8): y=a×b−x−e (−L/4≦x≦0) . . . (1), y=a×bx−e (0≦x≦L/4) . . . (2), 3.0×10−4<a<3.8×10−4. . . (3), 1.0×1024<b<1.0×1025. . . (4), y=c×d−x−e (−L/2≦x≦−L/4) . . . (5), y=c×dx−e (L/4≦x≦L/2) . . . (6), 3.0×10−3<c<3.1×10−3. . . (7), and 2.7×109<d<4.0×109. . . (8).
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Mori Yuko
Shintani Katsunori
Ben Loha
Dai Nippon Printing Co. Ltd.
Parkhurst & Wendel L.L.P.
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