US PATENT SUBCLASS 359 / 236
.~.~ Element rotates about axis perpendicular to light path

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

227  DF  LIGHT CONTROL BY OPAQUE ELEMENT OR MEDIUM MOVABLE IN OR THROUGH LIGHT PATH {6}
234  DF  .~ With rotating or pivoting element (e.g., scanning discs) {2}
236.~.~ Element rotates about axis perpendicular to light path

DEFINITION

Classification: 359/236

Element rotates about axis perpendicular to light path:

(under subclass 234) Subject matter wherein the light controlling element is revolved about an axis substantially at right angles to the direction of the light rays.