nite site V nite eye V make your own .I dont know about patents and copy rights , but to get a patent or what ever it has to be a new idea I believe. Looking through scope with a camera has been about for a long time.yukon cobra and people using digital movie cameras ect .I thought to make a nite site set up,a long time be for nite site released theres but did not know what camera lenses screens ect .So others must have thought the same .Dyson had a copy right on his vacuum cleaner . the system of catching the dust has been around for a long time the cyclone thing ,but not on a vacuum cleaner