Helical scanning pattern generator

Details Helical scanning pattern generator Helical scanning pattern generator

1996-05-28

1997-02-04

Pitts, Harold

Registers

Coded record sensors

Particular sensor structure

235464, 235472, G06K 710

Patent

active

056001207

ABSTRACT:
Scanning apparatus to scan an object by means of a light beam, including at least one mirror (2), which, during operation, is driven by a drive to make a combined movement of a continuous rotation around an axis of rotation (63) and an oscillating movement relative to the axis of rotation (63), the drive including a rotation drive (7, 8) and an oscillating drive (11, 12), both drives being controlled in such a way that the continuous rotation and the oscillating movement of the mirror are controlled independently. Thus the oscillating drive oscillates only the mirror. The light beam is thus parallel to or coincident with the axis of rotation.

REFERENCES:
patent: 4230393 (1980-10-01), Burke, Jr.
patent: 4282431 (1981-08-01), Anthony, Jr. et al.
patent: 4838632 (1989-06-01), Manian
patent: 4871904 (1989-10-01), Metlitsky et al.
patent: 5099110 (1992-03-01), Shepard et al.

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