▁unh appy ▁with ▁the ▁design ▁of ▁many ▁of ▁the ▁products ▁they ▁were ▁s elling , ▁so ▁he ▁began ▁to ▁design ▁his ▁own . ▁ ▁High ▁End ▁Systems ▁▁ ▁In ▁ 1 9 8 7 , ▁Bel live au ▁began ▁experiment ing ▁with ▁dich ro ic ▁filters ▁and ▁designed ▁a ▁color ▁f ading ▁light ing ▁instrument ▁called ▁Color ▁Pro . ▁It ▁used ▁three ▁MR - 1 6 ▁l amps ▁to ▁cross fade ▁between ▁colors , ▁which ▁was ▁unique ▁at ▁the ▁time . ▁In ▁the ▁process , ▁it ▁was ▁discovered ▁that ▁dich ro ic ▁filters , ▁which ▁are ▁color - t un ed ▁thin - film ▁filters ▁depos ited ▁on ▁hard ened ▁glass , ▁were ▁very ▁expensive . ▁Bel live au ▁bought ▁a ▁used ▁vac u um ▁chamber ▁and ▁directed ▁employees ▁to ▁re - build ▁it ▁for ▁the ▁purpose ▁of ▁manufact uring ▁their ▁own ▁dich ro ic ▁filters . ▁At ▁the ▁time , ▁there ▁were ▁no ▁other ▁light ing ▁companies ▁that ▁made ▁their ▁own ▁dich ro ic ▁filters . ▁Color ▁Pro ▁was ▁distributed ▁world wide ▁through ▁a ▁newly ▁established ▁distrib utor ▁network . ▁ ▁Ar ound ▁the ▁same ▁time , ▁Bel live au ▁set ▁up ▁a ▁manufact uring ▁division ▁called ▁Light wave ▁Research ▁for ▁the ▁purpose ▁of ▁design ing ▁and ▁building ▁new ▁products . ▁Another ▁new ▁company ▁called ▁High ▁End ▁Systems ▁was ▁incorpor ated ▁in ▁order ▁to ▁separate ▁the ▁installation ▁company , ▁Black stone ▁Audio ▁Visual , ▁from ▁the ▁sales ▁and ▁distribution ▁of ▁equipment ▁ ▁The ▁next ▁products ▁to ▁be ▁designed ▁and ▁built ▁were ▁the