Ilumisys Inc., a supplier of solid-state lighting technology, has granted a license for LED fluorescent tube replacements to LED Optics of Boca Raton, Fla., a manufacturer of replacement LED T8 tubes. The contract provides for royalty payments in exchange for rights to manufacture and sell products covered by the patent portfolio of ilumisys’ parent company, Altair Engineering. The partnership will allow LED Optics to expand its portfolio of LED retrofit products. LED Optics also manufactures other high-end LED bulbs used in commercial applications.