Patent ID: 8134657

Claim:
An optical component, comprising: a first main surface and a second main surface; wherein a plurality of two-dimensionally arranged first convex parts are arranged on the first main surface, the first convex parts being independent of each other and irregularly arranged, each of the first convex parts being a micro lens having an approximately semispherical shape or an approximately elliptical semispherical shape or an aspherical shape having a rounded tip; an aspect ratio TM 1 /PM 1 of each of the first convex parts is at least 40% wherein a height of each of the first convex parts is defined as TM 1 and a diameter of each of the first convex parts is defined as PM 1 ; a plurality of second convex parts arranged on the first main surface, each of the second convex parts having a height less than that of each of the first convex parts, each of the second convex parts comprising a lens extending in a one dimensional direction, the lens being arranged in one or two directions; a width of each of the first convex parts in contact with the first main surface is from 1.1 to 10 times as large as a width of each of the second convex parts; and an area ratio Mb/Ma is equal to or greater than 50% and equal to or lower than 88% wherein an area of the first main surface is defined as Ma and a total area of the first convex parts is defined as Mb.