Electrostatic fiber optic scanning device

Details Electrostatic fiber optic scanning device Electrostatic fiber optic scanning device

1979-04-06

1980-11-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358200, G02B 514

Patent

active

042347882

ABSTRACT:
Disclosed is an fiber optic scanning device that includes an optical fiber of predetermined length having one unsupported end for scanning, and having another end rigidly supported in a cantilevered fashion. The disclosed device operates to allow the movable end to be positioned with voltages that are substantially reduced over the prior art. To that end, an electrically conductive film lies on the fiber extending from the unsupported end to the supported end; and a transparent conductive plate lies in a plane perpendicular to the length of the fiber spaced apart from the unsupported end. This conductive plate forms a capacitance C with the conductive film. A voltage source V couples between the transparent conductive plate and the conductive film on the fiber to produce an electrostatic charge Q on the movable end of the fiber, where Q=VC. The movable end is positioned with a force F=QE by generating an electric field E transverse to the length of the fiber.

REFERENCES:
patent: 3122360 (1963-11-01), Gregg
patent: 3401232 (1968-09-01), Goldhammer et al.
patent: 3470320 (1969-09-01), Pike et al.
patent: 3530258 (1970-09-01), Gregg et al.
patent: 3602640 (1971-08-01), Maillet et al.
patent: 3941927 (1976-03-01), Russell

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