DISTANCE SENSOR AND DISTANCE IMAGE SENSOR

摘要

A distance sensor includes: a light receiving area including a first longer side and a second longer side; a photo gate electrode arranged on the light receiving area; a plurality of signal charge collection regions along the first longer side; a plurality of signal charge collection regions along the second longer side; a plurality of transfer electrodes along the first longer side provided with charge transfer signals having mutually-differing phases; a plurality of transfer electrodes along the second longer side provided with the charge transfer signals having mutually-differing phases; and a potential adjusting means positioned between the first and second longer sides and raises potential of an area extending in a direction in which the first and second longer sides extend to be higher than potential of side areas of the first and second longer sides.

主权项

1. A distance sensor comprising:
a light receiving area including a first side and a second side facing each other, a length of the first and second sides being longer than a gap between the first side and the second side; a photo gate electrode arranged along the first side and the second side on the light receiving area; a plurality of first-side signal charge collection regions arranged on a side of the first side of the light receiving area to be separate from each other along the first side and collecting signal charge generated according to incident light; a plurality of second-side signal charge collection regions arranged on a side of the second side of the light receiving area to be separate from each other along the second side, each of the plurality of second-side signal charge collection regions being arranged to face the corresponding first-side signal charge collection region across the light receiving area, and collecting the signal charge; a plurality of first-side transfer electrodes provided with charge transfer signals having mutually-differing phases, and arranged between the corresponding first-side signal charge collection regions and the photo gate electrode; a plurality of second-side transfer electrodes provided with the charge transfer signals having mutually-differing phases, and arranged between the corresponding second-side signal charge collection regions and the photo gate electrode; and a potential adjusting means positioned between the first side and the second side and raising potential of an area extending in a direction in which the first and second sides extend to be higher than potential of a side area of the first side and a side area of the second side such that inclination of the potential is formed from the area toward the side area of the first side and the side area of the second side.