An optronic data stream was a sequentially ordered finite set of information to components that use optics (light), such as holographic subroutine.

The Kyrian curator Quarren detected an optronic data stream, the holographic EMH, when working on some artifacts, the data storage device from the USS Voyager. (VOY: "Living Witness")

A holographic data stream appeared as an optronic data stream containing a holographic subroutine. (VOY: "Message in a Bottle")

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