Matsushita Electric Industrial Co., Ltd.

Yoshio Ohta

Takao Chikamura

Ryuhei Nakabe

Toshiro Matsuura

Shinji Fujiwara

Yutaka Miyata

Makoto Fujimoto

Kohsaku Yano

This invention discloses a high efficiency solid state imager combining a semiconductor substrate having a charge transfer function and a photoelectric conversion film, wherein a high frequency transfer pulse having a frequency higher than that of a vertical transfer pulse is applied for a prescribed time during the vertical blanking period; voltages with different values are applied to a transparent electrode provided on the above-mentioned photoelectric conversion film in the first and second period of the period with the presence of the above-mentioned high frequency transfer pulse; and a voltage differing with each field is applied to the above-mentioned transparent electrode during the vertical blanking period, whereby blooming, highlight lag and flicker due to an intense light are considerably suppressed.

Solid state imager

A solid state imaging apparatus which includes a plurality of cells formed on a semiconductor substrate and produces a video signal representing an optical image of an object. Each cell comprises a photosensitive first diode, a second diode connected to the first diode and a switching element connected to the connection point of the first and second diodes, for reading out charge signals from the first diode under the control of a read pulse. To one of the first and second diodes the blooming suppression pulse is supplied in synchronism with the read pulse so as to enlarge a dynamic range of the imaging apparatus.

Solid state imaging apparatus

A solid state imaging apparatus having a plurality of cells for accumulating charge signals in response to an incident light and charge transfer means connected to the cells through a switching element. A read pulse and a transfer pulse are applied to the switching element and the transfer means, respectively, to read the charge signals from the cells and transfer those signals, so that a video signal is produced. Blooming suppression pulse synchronous with the transfer pulse is supplied to a node between the cell and the switching element through a capacitive coupling.

Solid state imager with blooming suppression

A solid state color imaging apparatus with a color encoding filter and a solid state area imaging device for producing a color signal representing an optical image of an object. The color filter is formed from a plurality of pairs of color filter strips arranged one above the other in a vertical scanning direction, each of which color filter strips consists of alternating transmissivity filter elements of two different colors. The color filter is placed on the imaging device so that each photosensitive element of the imaging device is covered with a corresponding filter element. During the self-scanning of the area imaging device, first and second signals which represent color difference signals are derived therefrom alternately in the successive scan lines, from which the color signal is produced.

Solid state color imaging apparatus

Solid state color imaging apparatus for producing a color video signal representing an optical image of an object. In this apparatus, a plurality of sets of horizontal lines of photosensitive elements are arranged one above the other in a vertical scanning direction, each of which photosensitive element lines consists of a plurality of photosensitive elements distributed in a line in a horizontal scanning direction. Charge signals are read out from the sets of photosensitive element lines in each horizontal scanning period and a set of output signals is processed to produce the color video signal.

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Amagasaki, Japan

Yoshio Ohta