Canon Kabushiki Kaisha

Kentarou Nomura

Kazumi Kimura

Yoshihiro Ishibe

Yasuhiro Matsuo

To obtain an optical element capable of obtaining uniform anti reflection characteristics over the whole optical surface having a finite curvature of the optical element, a plurality of convex optical pieces having an anti reflection function are provided on a surface having the finite curvature of the optical element independently along a normal direction of the surface having the finite curvature of the optical element.

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Tsuchiura, Japan

Kentarou Nomura