Nippon Hoso' Kyokai

Kabushiki Kaisha Toshiba

Fuji Photo Film Company, Limited

Kuraray Co., Ltd.

Shigeo Yoshikawa

Yasuaki Nishida

Yoshiyuki Matsunaga

Yoshihiro Fujita

Nozomu Harada

Junichi Nishizawa

Yukio Endo

Takashige Tamamushi

Katsuya Fujisawa

Masao Uetsuki

Koji Shimanuki

Fumihiko Ando

Yoshiki Iino

Masao Fujiwara

Hiroshi Ohtake

Masahide Abe

An optical low pass filter for use in an imaging device including an objective lens and a solid state image sensor forming a plurality of picture elements thereon, which filter comprises a diffraction grating disposed between the objective lens and the solid state image sensor. The diffraction grating is of a type which the periodicity of an image of the diffraction grating projected onto the solid state image sensor by the objective lens is selected to be twice or 1/n of the periodicity of the picture element, wherein n represents an integer. The applicable imaging device may be of a type comprising an objective lens, a solid state image sensor forming a plurality of picture elements thereon, and a color filter array disposed on the solid state image snesor and including a plurality of sets of different color filter elements, or of a type comprising a single tube type color imaging device having an evacuated glass envelope, an objective lens and a color filter array including a plurality of sets of different color filter elements.

Optical low pass filter

A solid state image sensing device comprises a great number of light receiving elements arrayed in rows and columns, a plurality of vertical CCD registers respectively coupled to columns of the light receiving elements for vertically transferring signal charges sensed by the light receiving elements, a horizontal CCD register for horizontally transferring the signal charges transferred from the vertical CCD register, an adder section for adding together signal charges obtained from a predetermined number of light receiving elements arrayed in columns and rows to form one added signal charge and for obtaining a plurality of added signal charges for all the light receiving elements in each of fields, and a field switcher for introducing signal charges obtained from an array of light receiving elements with at least one element shifted from the previous field to the adder section in each field.

Two dimensional solid state image sensing device

A two-dimensional solid-state image sensor device comprising a plurality of picture cells two-dimensionally arranged in column and row directions. Each cell has a static induction transistor having drain and source regions disposed on opposite sides of a high resistance semiconductor channel region, and a gate region adjacent to the channel region to control a current flowing between the drain and source regions, and a transparent electrode disposed via a capacitance on at least a portion of the gate region, in a manner that light is incident through the transparent electrode to the gate region in which the charge produced by the light excitation is stored to control the current. Selection lines connected to the gate regions in each column in common via the capacitances are sequentially selected. A readout pulse voltage is applied to the selected selection line during one horizontal scanning period and a refresh pulse voltage larger than the readout pulse voltage is applied to the selected selection line during one horizontal blanking period subsequent to the horizontal scanning period. Each picture cell is selected in the column and row directions so that a signal is read out therefrom.

Two-dimensional solid-state image sensor device

Growing community of inventors

Tokyo, Japan

Shigeo Yoshikawa