Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-09-14
1995-09-12
Dzierzynski, Paul M.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359210, 359642, 359821, G02B 2608
Patent
active
054502284
ABSTRACT:
The present invention provides a read-write head for an optical tape recorder comprised of a synchronized scanning transmissive polygon and rotating lens wheel. The transmissive polygon is a multi-sided piece of transparent optical quality material for displacing a through transmitted collimated read or write light beam. The lens wheel comprises a unitary disk-shaped piece of optical quality material having a plurality of individual lenses precision molded or diamond point turned therein for focusing the through transmitted and displaced read or write light beam onto a recording media. The polygon is rotated to translate the displaced beam for scanning along a linear path aligned with an arcuate path followed each successive lens on the rotating lens wheel. The rotation of the polygon and lens wheel are synchronized such that each scan of the displaced beam along the linear path coincides with the movement of a lens along the arcuate path to trace out a data track on the recording media. A pair of beam expanders are also provided in the read-write head as a demagnification-magnification system around the transmissive polygon to improve system performance by narrowing the diameter of the beam transmitted through the polygon.
REFERENCES:
patent: 4320488 (1982-03-01), Russell
patent: 4321700 (1982-03-01), Russell
patent: 4495609 (1985-01-01), Russell
patent: 4514055 (1985-04-01), Grant
patent: 4621892 (1986-11-01), Kataoka et al.
patent: 4640573 (1987-02-01), Kataoka et al.
patent: 4844568 (1989-07-01), Suzuki et al.
patent: 5153437 (1992-10-01), Nishii et al.
patent: 5159483 (1992-10-01), Watanabe et al.
patent: 5216534 (1993-06-01), Boardman et al.
Boardman John D.
Hamilton Scott M.
Welch Jeffrey P.
Dzierzynski Paul M.
E-Systems Inc.
Kong Steve
Meier Harold E.
LandOfFree
Read-write head for an optical tape recorder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Read-write head for an optical tape recorder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Read-write head for an optical tape recorder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-409594