JP2017055321A5

JP2017055321A5 -

Info

Publication number: JP2017055321A5
Application number: JP2015179224A
Authority: JP
Filing date: 2015-09-11
Publication date: 2018-10-18
Anticipated expiration: 2035-09-11

Description

本発明の一観点によれば、光電変換により電荷を生じる光電変換部と、前記光電変換部から転送される電荷を保持する保持部と、前記保持部から転送される電荷に基づく信号を出力する増幅部とをそれぞれが含む複数の画素を有し、前記複数の画素は、第１の露光期間の間に生じた電荷に基づく第１の信号と、前記第１の露光期間とは長さが異なる第２の露光期間の間に生じた電荷に基づく第２の信号とを出力するように構成されており、前記第１の露光期間において、生じた電荷を前記光電変換部が蓄積するとともに、前記保持部が保持する電荷を前記保持部から前記増幅部に転送し、前記第２の信号として出力し、前記第２の露光期間は、生じた電荷を前記光電変換部のみで蓄積する期間と、生じた電荷を前記光電変換部と前記保持部で保持する期間とを有し、前記第２の露光期間の前記光電変換部のみで蓄積する期間において、前記保持部が保持する電荷を前記保持部から前記増幅部に転送し、前記第１の信号として出力する撮像装置が提供される。
According to one aspect of the present invention, a photoelectric conversion unit caused a charge by photoelectric conversion, and a holding portion for holding a Ru conductive load is transferred from the photoelectric conversion unit, a signal based on Ru electrostatic load is transferred from the holding portion And a plurality of pixels each including an output amplifying unit, wherein the plurality of pixels has a first signal based on a charge generated during a first exposure period and a length of the first exposure period. And a second signal based on charges generated during different second exposure periods, and the photoelectric conversion unit accumulates the generated charges during the first exposure period. together, the charge holding portion holds transferred to the amplifier part from the holding unit, the output as a second signal, the second exposure period, accumulates the resulting charge only in the photoelectric conversion portion Period and the generated charge in the photoelectric conversion unit and the holding unit And a period for lifting, in the second the period to accumulate only in the photoelectric conversion unit of the exposure period, and transferring the charges the holding portion is held by the amplification unit from said holding portion, said first signal As an imaging device that outputs as:

また、本発明の他の観点によれば、光電変換により電荷を生じる光電変換部と、前記光電変換部から転送される電荷を保持する保持部と、前記保持部から転送される電荷に基づく信号を出力する増幅部とをそれぞれが含む複数の画素を有し、前記複数の画素が、第１の露光期間の間に生じた電荷に基づく第１の信号と、前記第１の露光期間とは長さが異なる第２の露光期間の間に生じた電荷に基づく第２の信号とを出力する撮像装置の駆動方法であって、前記第１の露光期間において、生じた電荷を前記光電変換部に蓄積するとともに、前記保持部が保持している電荷を前記増幅部に転送し、前記第２の信号として出力し、前記第２の露光期間において、生じた電荷を前記光電変換部のみで蓄積する期間と、生じた電荷を前記光電変換部と前記保持部で保持する期間とを実施し、前記第２の露光期間の前記光電変換部のみで蓄積する期間において、前記保持部が保持する電荷を前記保持部から前記増幅部に転送し、前記第１の信号として出力する撮像装置の駆動方法が提供される。 According to another aspect of the present invention, a photoelectric conversion unit caused a charge by photoelectric conversion, and a holding portion for holding a Ru conductive load is transferred from the photoelectric conversion unit, a Ru conductive load is transferred from the holding portion A plurality of pixels each including an amplification unit that outputs a signal based on the first signal based on the charge generated during the first exposure period, and the first exposure period. Is a method of driving an imaging device that outputs a second signal based on charges generated during a second exposure period of different length, wherein the generated charges are converted into photoelectric signals during the first exposure period. While accumulating in the conversion unit, the charge held in the holding unit is transferred to the amplifying unit and output as the second signal , and the generated charge is transferred only to the photoelectric conversion unit in the second exposure period. And the generated charge between the photoelectric conversion unit and the front A period of holding at the holding unit implemented, in the second the period to accumulate only in the photoelectric conversion unit of the exposure period, and transferring the charges the holding portion is held by the amplification unit from said holding portion, said first A driving method of an imaging apparatus that outputs a signal of 1 is provided.

Claims

Including a photoelectric conversion unit caused a charge by photoelectric conversion, respectively a holder for holding a Ru conductive load is transferred, and an amplifier portion that outputs a signal based on the Ru electrostatic load is transferred from the holding portion from the photoelectric conversion portion Having a plurality of pixels,
The plurality of pixels are based on a first signal based on a charge generated during a first exposure period and a charge generated during a second exposure period having a length different from that of the first exposure period. Configured to output a second signal;
In the first exposure period, the photoelectric conversion unit accumulates the generated charge, and the charge held by the holding unit is transferred from the holding unit to the amplification unit, and is output as the second signal.
The second exposure period has a period of accumulating the resulting charge only in the photoelectric conversion unit, and a period for holding the resulting charges by the holding portion and the photoelectric conversion unit,
The charge held by the holding unit is transferred from the holding unit to the amplifying unit and output as the first signal during a period in which the photoelectric conversion unit accumulates only in the second exposure period. Imaging device.

The imaging apparatus according to claim 1, wherein charges generated during the second exposure period are intermittently transferred from the photoelectric conversion unit to the holding unit.

The imaging apparatus according to claim 1, wherein the second exposure period is longer than the first exposure period.

The imaging apparatus according to any one of claims 1 to 3, wherein the first exposure period and the second exposure period coincide with each other in the plurality of pixels.

The imaging apparatus according to any one of claims 1 to 4, wherein a start time of one frame period is different from a start time of the first exposure period.

6. The wide dynamic range image is acquired from the first image based on the first signal and the second image based on the second signal. 6. The imaging device described.

Including a photoelectric conversion unit caused a charge by photoelectric conversion, respectively a holder for holding a Ru conductive load is transferred, and an amplifier portion that outputs a signal based on the Ru electrostatic load is transferred from the holding portion from the photoelectric conversion portion A plurality of pixels, wherein the plurality of pixels have a first signal based on charges generated during the first exposure period, and a second exposure period having a length different from the first exposure period. A driving method of an imaging apparatus that outputs a second signal based on a charge generated between
In the first exposure period, the generated charge is accumulated in the photoelectric conversion unit, the charge held by the holding unit is transferred to the amplification unit, and is output as the second signal .
In the second exposure period, a period in which the generated charge is accumulated only by the photoelectric conversion unit, and a period in which the generated charge is held by the photoelectric conversion unit and the holding unit,
The charge held by the holding unit is transferred from the holding unit to the amplifying unit and output as the first signal during a period in which the photoelectric conversion unit accumulates only in the second exposure period. Driving method of imaging apparatus.

The imaging device according to any one of claims 1 to 6,
An image pickup system comprising: a signal processing unit that processes a signal from the image pickup apparatus.

The said signal processing part acquires a wide dynamic range image from the 1st image based on the said 1st signal, and the 2nd image based on the said 2nd signal. Imaging system.

The imaging system according to claim 8, wherein the signal processing unit generates a focus detection signal based on the first signal and generates an image signal based on the second signal.