Miniature optical scanner for a two axis scanning system

Details Miniature optical scanner for a two axis scanning system Miniature optical scanner for a two axis scanning system

1996-06-13

1998-05-12

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359199, 359201, 359202, 359214, G02B 2608

Patent

active

057514658

ABSTRACT:
A miniature optical scanner includes an electromagnetic drive having stationary magnets and stationary drive coils to minimize the rotational inertia of the scanner and increase the scanner's resonant frequency. The scanner is such that the resonant frequency is manually tunable as well as automatically adjustable to compensate for variables causing frequency drift. The optical scan angle is increased by employing a multiplying mirror with the optical scanner. For a two axis scanning system, the multiplying mirror may be formed of a second optical scanner to increase the optical scan angle relative to both of the axes.

REFERENCES:
patent: 4323307 (1982-04-01), Seeley
patent: 4953961 (1990-09-01), Ubhayakar
patent: 5136415 (1992-08-01), Bean

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