Abstract: A safety device for discharging high voltage circuits operated in pressurized containers. The device is positioned within an elbow or other protrusion through which passes the high voltage feed-through electrode. In one embodiment the grounding contact is automatically forced against the high voltage contact by the expansion of a bellows upon decompression of the container while in an alternate embodiment, the grounding contact is manually threaded against the high voltage contact.

Abstract: The invention comprises a system for deflecting an optical beam in response to an electrical signal. A collimated optical beam is generated utilizing any convenient means. The collimated light beam is injected into an optical wave guide positioned between two electrodes. One electrode is substantially coextensive with the surface of the waveguide. The second electrode comprises a series of spaced stripes parallel to the optical beam and having varying length across the surface of the electro-optically sensitive material. The electro-optically sensitive material is subjected to a varying electrical field by applying an electrical voltage to the electrodes causing the velocity of propagation of the light through the electro-optically sensitive material to vary across the layer. This changes the phase relationship of the optical beam across its diameter as it emerges from the edge of the electro-optically sensitive material. This results in a deflection of the electro-optical beam.