MINNEAPOLIS, April 14 -- APA Optics Inc., of Blaine, Minn., announced today that it has sold certain assets related to its discontinued optics manufacturing segment to PNE Inc. (dba IRD), of Litchfield, Minn., for an undisclosed amount of cash. PNE will be subleasing a small portion of APA's Blaine facility for up to one year to conduct optics manufacturing with the purchased assets. APA Optics makes advanced products for fiber optic communications, including dense wavelength division multiplexing (DWDM) components and gallium nitride compound semiconductor-based ultraviolet detectors, instruments and consumer products. For more information, visit: www.apaoptics.com