Autofocus actuator device

Details Autofocus actuator device Autofocus actuator device

1999-05-27

2000-08-01

Epps, Georgia

Optical: systems and elements

Lens

With support

359813, 359823, 369 4415, G02B 702, G11B 700

Patent

active

060975520

ABSTRACT:
An actuator device for providing a focusing mechanism in an optical printer or optical recording device. The focusing optics are housed in a lens barrel which is maintained in position within a cylindrical winding of electrical wire by means of two diaphragm springs at the ends of the barrel. Movement of the barrel and the optics is affected by passing a current through the cylindrical winding to produce a longitudinal force on a permanent magnet secured to the lens barrel.

REFERENCES:
patent: 4472024 (1984-09-01), Konomura et al.
patent: 4542289 (1985-09-01), Yokoyama et al.
patent: 4806778 (1989-02-01), Yamamoto et al.
patent: 4984229 (1991-01-01), Nedvidek
patent: 5212500 (1993-05-01), Harrigan
patent: 5218587 (1993-06-01), Nomiyama et al.
patent: 5361243 (1994-11-01), Kasahara
patent: 5493546 (1996-02-01), Kasahara

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