Facsimile and static presentation processing – Static presentation processing – Attribute control
Patent
1975-12-17
1978-06-13
Richardson, Robert L.
Facsimile and static presentation processing
Static presentation processing
Attribute control
358 6, 358 60, 358 63, 350358, 350174, H04N 584, H04N 912
Patent
active
RE0296708
ABSTRACT:
An apparatus and method are disclosed for acoustooptically modulating and diffracting a plurality of optical wavelengths contained in laser light impinging on an acoustooptic cell to form a composite output beam comprising intensity modulated component beams of selected wavelengths present in the impinging laser light. To accomplish this, a plurality of amplitude modulated electrical signals of different fixed frequencies are applied to an electrical-to-acoustical transducer operatively attached to the cell. Every frequency applied to the transducer produces an acoustic wave within the cell to form a diffraction spectrum of the wavelengths present in the laser light impinging or incident on the cell. The acoustic wave producing electrical frequencies are chosen such that diffracted component beams of selected wavelengths are collinear. Thus, the collinear component beams form a composite output beam comprising the selected diffracted wavelengths. Non-collinear beams of the selected wavelengths as well as unwanted diffracted wavelengths and undiffracted beams are masked or blocked from further passage through the optical system. The amplitudes of the electrical signals producing the acoustic waves within the cell are modulated independently to control the intensities of the individual component beams of selected wavelengths present in the composite output beam. The laser light impinging on the cell can comprise a single multi-wavelength beam; two collinear beams of different wavelengths and a third noncollinear beam of another wavelength; or beams of different wavelengths can be mutually noncollinear, the angles of impingement being chosen in accordance with what electrical frequencies are applied to the transducer.
REFERENCES:
patent: 3303276 (1967-02-01), Haeff
patent: 3314075 (1967-04-01), Becker et al.
patent: 3316348 (1967-04-01), Hufnagel et al.
patent: 3510571 (1970-05-01), Biedermann
patent: 3544718 (1970-12-01), Adler
patent: 3597536 (1971-08-01), Fowler
patent: 3614312 (1971-10-01), Fournier et al.
patent: 3622690 (1971-11-01), Stephens et al.
patent: 3700805 (1972-10-01), Hanlon
Article - "Means for Combining a Plurality of Laser Beams."
Eastman Kodak Company
Richardson Robert L.
Sales Milton S.
LandOfFree
Multi-color acoustooptic modulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-color acoustooptic modulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-color acoustooptic modulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-667