Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1994-06-17
1996-07-09
Dzierzynski, Paul M.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359213, 359220, 359319, G02B 2608
Patent
active
055350429
ABSTRACT:
Corrective signals for canceling out a dynamic deformation of the reflecting surface of a rotary scanning mirror are applied to X and Z electrodes of an electro-optic lens. Based on the supplied corrective signals, the electro-optic lens controls the refractive index of a light-transmissive element to refract a laser beam in a direction to eliminate an excessively converged or diverged condition of the laser beam due to the dynamic deformation of the reflecting surface of the rotary mirror. The spatial vector of the corrective signals supplied to the electro-optic lens rotates in synchronism with the rotation of the rotary scanning mirror. Therefore, the laser beam which passes through the electro-optic lens and is reflected by the reflecting surface forms a beam spot on a film, which stays focused at all times irrespective of the angular displacement of the rotary scanning mirror.
REFERENCES:
patent: 3705758 (1972-12-01), Haskal
patent: 3736046 (1973-05-01), Zook
patent: 4829175 (1989-05-01), Goto et al.
patent: 5033806 (1991-07-01), Tomita et al.
patent: 5067798 (1991-11-01), Tomoyasu
patent: 5124835 (1992-06-01), Shibaguchi et al.
patent: 5289307 (1994-02-01), Oldersha et al
Dzierzynski Paul M.
Fuji Photo Film Co. , Ltd.
Schuberg Darren E.
LandOfFree
Light scanning device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light scanning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light scanning device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1872075