Point relay scanner utilizing ellipsoidal mirrors

Details Point relay scanner utilizing ellipsoidal mirrors Point relay scanner utilizing ellipsoidal mirrors

1995-05-05

1997-07-22

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359201, 359214, 359216, 359631, 359855, 359900, G02B 2608

Patent

active

056508697

ABSTRACT:
A scanning system uses a polygonal mirror assembly with each facet of the polygon having an ellipsoidal mirror located thereon. One focal point of each ellipsoidal mirror is located at a common point on the axis of rotation of the polygonal mirror assembly. As the mirror assembly rotates, a second focal point of the ellipsoidal mirrors traces out a scan line. The scanner can be utilized for scanned output display of information or for scanning information to be detected.

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