Here's a couple photos. Sorry the pictures aren't better, I lifted them from a videos from my Navy time. The "Dusk" one (camera on the glareshield) shows the lights in relation to the landing area. The "night" one, shows what it looks like from about 1/2 to 1/4 mile. It's dark - yep - there isn't much to look at. The lights are mostly off white. The lights down the fantail (vertical line dropping straight down in night picture) are red.

There's plenty of shots of Fresnel lens close up. On the diagram, it's about 2/3 of the way down the landing area off the left edge.