STI XDI-7093x PHOTOELECTRIC APPARATUS DETECTING LIGHT REFLECTED OPTICAL RELAY

Unit is in good condition, some scuffs and wear. 5 wire hook up. I'm not knowledgeable on this item's function or the operation of the system it would be installed in. Information about the relay is in the description.

"Apparatus for relaying a directional electromagnetic radiation beam containing pulse frequency components above a predetermined frequency"

Invented by Earl T. Price, and produced under Scientific Technology Incorporated in Mt. View, CA

" The optical relay disclosed herein includes means which receive the electromagnetic radiation in the optical portion of the electromagnetic spectrum and which provide an output signal corresponding to the received electromagnetic radiation. A source driver is coupled to receive the output signal, which provides a driver signal in response thereto. A source of electromagnetic radiation is connected to the driver signal so that when an input pulse of electromagnetic radiation is received at the receiver, an output pulse of electromagnetic radiation is produced at the source. The output pulse is substantially in phase with the received pulse. A method of extending the range of a directional beam of electromagnetic radiation in the optical spectrum is disclosed which includes the step of aligning an optical beam receiver with a directional optical beam to be relayed. Converting the directional optical beam to a corresponding electrical signal when received is followed by exciting a connected optical beam transmitter with the corresponding electrical signal. The connected transmitter produces a directional optical beam extending the range of the received optical beam to the sum of the ranges of the received and transmitted optical beams.

In general it is an object of the present invention to provide a relay for transmitted optical information which extends the range of transmission."

Take a moment to review the photos and make note of any missing information you need before making the purchase. I use a white backdrop in an effort to represent the item clearly, but colors can be slightly different in different lighting or objects may appear smaller/larger. 

I ship within a day of payment! Sometimes I can even get an item out the same day. If you're interested in alternative domestic/international shipping, contact me. I always offer the fastest method at the lowest price! Upgrading to a faster method is typically just a few more dollars.

I do my best to describe items, but I can miss details. Ask questions and use the photos to supplement information I provide.

I appreciate your time in fully reading this description!