Martin Professional is the company which manufactures about 75% of the lightning equipment Royal Caribbean uses in their ships' entertainment spaces:
http://www.martinpro.com/productgroup/productgroup.asp?pg=martinlightMartin Visual Solutions Enhance Cruise Experience on World’s Largest Luxury LinerWith more than 15 years of experience in partnering with the world’s largest cruise lines, Martin Professional has become the preferred visual solutions supplier to the cruise ship industry. That fact is clearly evident on the world’s largest cruise liner, Royal Caribbean’s Oasis of the Seas, which recently set sail with a multitude of Martin Professional dynamic lighting and smoke solutions.
http://www.martinpro.com/casestory/casestory.asp?id=2155&Words=royal+caribbean