Scanning device

Details Scanning device Scanning device

1989-07-25

1992-03-17

Arnold, Bruce Y.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359199, G02B 2608

Patent

active

050973550

ABSTRACT:
The invention relates to a device for carrying out a repetitive scan of a sensor element according to predetermined parameters. The sensor element is attached to a permanent magnet with diametrically opposed poles resulting in an open magnetic circuit. A coil is provided around said magnet, through which a current is passed, of predetermined frequency and intensity, where means are provided for enabling the rotation of the magnet and the sensor attached thereto as a result of the interaction of the two magnetic fields. According to a preferred embodiment, the scan is controlled by signals originating from electrooptical sensing means arranged in closed loop with the current which is applied to the coil.

REFERENCES:
patent: 4502752 (1985-03-01), Montagy
patent: 4874215 (1989-10-01), Montager
patent: 4902083 (1990-02-01), Wells
patent: 4958894 (1990-09-01), Khowles
patent: 4974918 (1990-12-01), Delache et al.

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