Hitachi Maxell, Limited

Yuji Kodera

Yukinori Yamada

Nobuyasu Ishihara

Shirou Hayashihara

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.

Micro lens array sheet for use in backlight device and molding roll for manufacturing such micro lens array sheet

There is provided an IC card comprising a memory within the IC card for storing therein a program operating on a processor included in the IC card and a ROM storing therein a system program for down-leading the program onto the IC card. When a different program is present in the program storage area and a program to be down-loaded into the IC card is to be relocated to a space area, the destination address field of a jump instruction included in the program is altered by a processor included in the IC card.

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Ibaraki, Japan

Yuji Kodera