Fujifilm Corporation

Fuji Photo Film Company, Limited

Masayasu Konishi

Hitoshi Shimizu

Katsuaki Muraishi

Yoshiyuki Kunuki

Hirohiko Tsuzuki

Tatsuo Fujikura

Kouji Kuruma

Nobuhiko Ogura

Yasunobu Sakaguchi

Michio Cho

Kenji Ito

Toshio Sasaki

Takayoshi Oyamada

Hideyuki Karaki

Junichi Katada

Mikinaga Mori

Masashi Hakamata

Hideyuki Morimoto

Hiroki Terada

Hiroyuki Ota

A lenshas unevenness within an optical effective diameter D of an optical surface, an arithmetic mean roughness Ra within the optical effective diameter D of the optical surfaceis 20 nm or more and 50 nm or less, and an average value of widths W of protrusion portionsof the unevenness on an average line Cof a roughness curve Cof the optical surfaceis 1/200 or more and 1/50 or less of the optical effective diameter D of the optical surface. The lensis suitably used as a lens that composes a zoom lens or an imaging lens.

Lens, zoom lens, and imaging lens

There are provided a lens, a zoom lens, and an imaging lens capable of eliminating blurriness of a ring zone without reducing resolution and increasing the number of steps of processing. A lenshas random unevenness within an optical effective diameter D of an optical surface, an arithmetic mean roughness Ra within the optical effective diameter D of the optical surfaceis 20 nm or more and 50 nm or less, and an average value of widths W of protrusion portionsof the unevenness on an average line Cof a roughness curve Cof the optical surfaceis 1/200 or more and 1/50 or less of the optical effective diameter D of the optical surface. The lensis suitably used as a lens that composes a zoom lens or an imaging lens.

A device for assay can evenly develop solution, and performs highly accurate and sensitive measurement. A first device part () maintains a second insoluble carrier () and a third insoluble carrier () in such a manner that they overlap with each other at a detection portion () of a first insoluble carrier (). These three carriers (), () and () are housed not in contact with each other. A pressing unit () having a pressing surface () that is parallel to the detection portion () is provided on an inner surface of the second device part () facing the detection portion (). The pressing surface () is displaced by being pressed toward the detection portion (), and presses, from the upper side of the first insoluble carrier (), the second insoluble carrier () and the third insoluble carrier () onto the first insoluble carrier (). The first device part () and the second device part () are joined together.

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Kanagawa, Japan

Masayasu Konishi