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US 4,284,858 AGranted
Dichroic transducer
AssigneeRockwell International Corporation
InventorMargie M. Nicholson
Life of this patent
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Abstract
A dichroic transducer is disclosed including a light source, a film containing a dichroic material in the path of the light beam and an acoustic information-containing wave, and a detector in the path of the modulated light beam for detecting the intensity thereof. The detector may preferably be a fiber optics pickup device.
Claims6
A dichroic transducer comprising:
- light source means for providing a beam of light;
- a film comprising a dichroic material disposed in the path of said beam of light, said film being stretched so that portions thereof are displaced in response to an incoming information-containing acoustic wave directed at said film, said displaced portions modulating said beam of light directed thereto in accordance with the information contained in said acoustic wave;
- and
- detector means disposed in the path of said modulated beam of light for detecting said modulated beam.
1 more element
Dependencies are inferred from the claim text.