Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1998-01-21
2000-03-14
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250230, 359199, 359221, H01J 314
Patent
active
060375833
ABSTRACT:
A control system for a scanner is disclosed, especially for a laser scanning microscope, with an oscillating motor for driving an oscillating mirror serving for the linearly oscillating deflection of a beam bundle, with a control unit for supplying the oscillating motor with an exciting current which is variable with respect to the control frequency, frequency curve, and amplitude, with a function generator which is connected with the control unit, and with a measurement value transducer for obtaining a sequence of information about the deflection positions of the oscillating mirror.
The measurement value transducer is connected with the function generator by way of a logic unit for determining correction values for the exciting current. Accordingly, it is advantageously possible, by evaluating the information supplied by the measurement value transducer about the actual deflection position of the oscillating mirror, to determine correction values with the assistance of the logic unit. These correction values can be used, in turn, to influence the control frequencies emitted by the function generator in such a way that deviations are minimized or completely prevented.
REFERENCES:
patent: 4800270 (1989-01-01), Blais
patent: 5187364 (1993-02-01), Blais
GIT Fachz. Lab Sep. 1984, Article "Laser-Scan-Mikroskop--Aufbau und Anwendungen" (Apparatus and Applications) V.Wilke and A. Siegel (pp. 765-766, 771-772).
Laser Magazin Mar. 1986, Article "Von Low-Cost bis High-Tech: Laser--Scanner finden ihren Markt" K. Dickmann (pp. 10,12,14, 16 and 18).
R. Oldenbourg Verlag Muenchen Wein 1977, Elektronische Signalverarbeitung "Mit 215 Bilden und 46 Tabellen" H. Vahidiek (pp. 220-221).
Moehler Gunter
Schoeppe Guenter
Tille Sebastian
Carl Zeiss Jena GmbH
Pyo Kevin
Westin Edward P.
LandOfFree
Control system for a scanner drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system for a scanner drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for a scanner drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-171477