Patent ID: 8300286

Claim:
A photosensitive chip, comprising: a first plurality of sets of photosensors including first and second sets of photosensors, the first and second sets each aligned in a Y direction and separated from each other in an X direction perpendicular to the Y direction; and a second plurality of sets of photosensors including third and fourth sets of photosensors, the third and fourth sets each aligned in the Y direction and separated from each other and from the first and second sets of photosensors in the X direction, wherein: the first and third sets of photosensors are aligned in the X direction; the second and fourth sets of photosensors are aligned in the X direction; each photosensor in the first and second pluralities of sets of photosensors has a length in the Y direction; the first and third sets of photosensors are offset in the Y direction from the second and fourth sets of photosensors by a distance less than the length; the first and second pluralities of sets of photosensors include a first number of sets; the distance is about equal to said length of a photosensor divided by the first number; the first and second pluralities of sets of photosensors include a first number of photosensors; a scan line for the first and second pluralities of sets of photosensors has a time period; respective photosensors in the first and second pluralities of sets of photosensors are activated in sequence to begin accumulating charge with respect to incident light thereon; and a time interval between activation of two sequential photosensors in the sequence is substantially equal to the time period divided by the first number.