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US 3,938,881 AGranted
Acousto-optic modulation device
AssigneeXerox Corporation
InventorsDavid K. Biegelsen, Gary K. Starkweather, James C. Zesch
Life of this patent
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Abstract
An acousto-optic modulation device is provided which is comprised of an interaction material of an injection moulded plastic integrally combined with a transducer which is bonded automatically to the interaction material during the injection process. A beam of light is projected through the interaction material, the light being diffracted by an acoustic field established by the transducer.
Claims17
An acousto-optical light deflection device comprising:
- a plastic sound medium, and
- a piezo-electric sound transducer integrally bonded to said medium, said transducer being adapted to receive a modulated signal so as to generate acoustic waves, whereby acoustic waves transmitted to said medium form a diffraction grating for a light beam passing through said medium.
A method of making an acousto-optical light deflection device comprising the steps of:
- setting a piezo-electric sound transducer in a mould with said mould having dimensions defining the configuration of the acousto-optic medium of said device, and
- injecting a heated plastic into said mould, whereby an injection moulded plastic medium is provided which conforms to the mould configuration and is integrally bonded with said transducer.
Dependencies are inferred from the claim text.