US PATENT SUBCLASS 348 / 258
.~.~.~ With bias illumination

Current as of: June, 1999
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207  DF  CAMERA, SYSTEM AND DETAIL {19}
222  DF  .~ Combined image signal generator and general image signal processing {9}
257  DF  .~.~ With DC level control {1}
258.~.~.~ With bias illumination {2}
259  DF  .~.~.~.~> Combined with color separating optical system
260  DF  .~.~.~.~> For single scanning device color camera {1}

DEFINITION

Classification: 348/258

With bias illumination:

(under subclass 257) Subject matter wherein a uniform auxiliary light of low luminosity is used to illuminate the light receiving surface of the camera image sensor.

(1) Note. Bias illumination is usually used to eliminate a blurred image or a trailing on an image caused by the motion of a scanned object.