Sharp Kabushiki Kaisha Corporation

Masaaki Uchihashi

Takahiro Takimoto

Kazuhiro Natsuaki

Masayo Uchida

Takashi Nakano

Suguru Kawabata

Daisuke Honda

An image capturing apparatus that includes a polarizing filter of a slit type in which polarization characteristics are improved is realized. A polarizing unit () of an image capturing apparatus () includes a first polarizer layer () and a second polarizer layer () that hold a dielectric layer () therebetween, and a plurality of slits () that are arranged at regular intervals in a predetermined direction are formed in each of the first polarizer layer () and the second polarizer layer (). A forming material of each of the first polarizer layer () and the second polarizer layer () and a forming material of a wiring layer that controls an operation of a light receiving unit () are selected from Al, Si, Cu, Au, Ag, Pt, W, Ti, Sn, In, Ga, Zn, and a compound or alloy that contains at least one of the foregoing.

Image capturing apparatus

Provided are an optical receiver that can realize a reduction in the variation of sensitivity in the ultraviolet light region and a reduction in noise in the visible light region and the infrared light region, a portable electronic device, and a method of producing an optical receiver. The first light-receiving device (PD) and the second light-receiving device (PD) of the optical receiver () are each constituted by forming a second conductivity-type N-type well layer (N_well) on a first conductivity-type P-type substrate (P_sub), forming a first conductivity-type P-type well layer (P_well) in the N-type well layer (N_well), and forming a second conductivity-type N-type diffusion layer (N) in the P-type well layer (P_well). The P-type substrate P_sub, the N-type well layer (N_well), and the P-type well layer (P_well) are electrically at the same potential or are short-circuited.

Optical receiver, portable electronic device, and method of producing optical receiver

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Sakai, Japan

Masaaki Uchihashi