Abstract: In a photoelectric-conversion element having a large light receiving region for a high-speed transfer, and a solid-state image sensor including the photoelectric-conversion element, the photoelectric-conversion element includes first to eighth charge read-out regions, which are provided at positions symmetric with respect to a center position of a light receiving region and first to eighth field-control electrodes, which are arranged on both sides of charge-transport paths extending from the center position of the light receiving region to the first to eighth charge read-out regions, respectively, and change depletion potentials of the charge-transport paths and the octuple charge-transfer channels.

Abstract: In a photoelectric-conversion element having a large light receiving region for a high-speed transfer, and a solid-state image sensor including the photoelectric-conversion element, the photoelectric-conversion element includes first to eighth charge read-out regions, which are provided at positions symmetric with respect to a center position of a light receiving region and first to eighth field-control electrodes, which are arranged on both sides of charge-transport paths extending from the center position of the light receiving region to the first to eighth charge read-out regions, respectively, and change depletion potentials of the charge-transport paths and the octuple charge-transfer channels.

Abstract: A fuel efficiency display device includes a past average fuel efficiency (AFE) calculating unit, a present AFE calculating unit, an AFE comparison unit, and a display unit. The past AFE calculating unit calculates AFE from a start time of use of the fuel efficiency display device to a finish time of a last driving operation as a past AFE. The present AFE calculating unit calculates an AFE at constant time intervals or at constant intervals of running distance as a present AFE since a start time of a present driving operation. The AFE comparison unit makes a comparison between the present AFE and the past AFE. The display unit displays a proportion of a number of times that the present AFE is more efficient than the past AFE to a total number of the comparisons between the present AFE and the past AFE.