Nikon Corporation

Toshiro Umeda

Shinichi Tsukada

Akira Adachi

Hiroyuki Sugimura

Asaji Masuko

Noboru Yoneya

A focusing screen of the type composed of a multitude of micro-lens-like curved surfaces arranged on a given plane is substantially regular in terms of their two-dimensional arrangement on the above-mentioned plane but exhibits some variation in terms of the height of the microscopic surface roughness formed by the micro-lens-like curved surfaces. The variation range is determined in correspondence with the pitch of the above-mentioned two-dimensional arrangement. Also disclosed is a method of manufacturing a focusing screen exhibiting an appropriate degree of randomness in terms of its surface configuration.

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Matsudo, Japan

Toshiro Umeda