24/06/2005 - Controller General of Patents, Designs, and Trade Marks

(21) Application No. 2257/DEL/1997 A (22) Date of filing of Application: 12/08/1997
(54) Title of the invention: “LENTICULAR LENS SHEET.”
(51) International Classification 7 : G 02B 3/00
(30) Priority Data :
(31) Document No.: 216250/1996 &
170568/1997
(32) Date : 16/08/1996 & 26/06/1997
(33) Name of convention country : JAPAN.
(66) Filed U/s 5(2) : NIL
(61) Patent of addition to application No. : NA
(62) Filed on : NA
(63) Divisional to Application No. :NIL
(64) Filed on : NA
Total No. of Pages:
(57) Abstract:
(71) Name of the applicant:
DAI NIPPON PRINTING CO., LTD.
Address of the Applicant:
1-1, Ichigaya-kaga-cho, 1-Chome, Shinjuku-ku,
Tokyo-To, Japan.
(72) Name of the Inventor:
MASAHIRO GOTO
A lenticular lens sheet includes a substrate layer, a lens portion having a lenticular lens
configuration which is shaped so as to be convex on a light incident face side of the substrate layer
and an achromatic or chromatic colored layer formed adjacent to at least a light incident face of the
lens portion. The substrate layer is not colored. Alternatively, it is colored thinner than the colored
layer. With the arrangement, it is possible to restrict reflection of outside light and enhance the
contrast of picture without reducing the intensity of image light so much. Further, it is possible to
realize fine pitching of images.
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