Beam scanner

Details Beam scanner Beam scanner

1990-07-27

1992-03-17

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359213, 359223, G02B 2608

Patent

active

050973541

ABSTRACT:
The invention provides a beam scanner comprising a light-emitting element, a lens disposed forwardly of the light-emitting element in such a manner that its optical axis is parallel to the optical axis of the light-emitting element, and a rocking reflective mirror which is rotated by Coulomb force acting between static electrodes. There also is provided a beam scanner comprising a light-emitting element, a lens disposed forwardly of the light-emitting element in such a manner that its optical axis is parallel to the optical axis of the light-emitting element, and a displacement mechanism for reciprocal displacement of either the light-emitting element or the lens in a direction generally perpendicular to the optical axis thereof. The beam scanner of the invention is compact and permits reciprocal scanning.

REFERENCES:
patent: 1438974 (1922-12-01), Wente
patent: 4074312 (1978-02-01), van Rosmalen
patent: 4123166 (1978-10-01), Botcherby et al.
patent: 4123167 (1978-10-01), Botcherby et al.
patent: 4712887 (1987-12-01), Baer

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