TRU-VUE GLASS

Tru-Vue is a registerd trademark of the Tru Vue Company of Chicago Illinois, and there are undoubtedly other manufacturers of similar products around the world. Because of my Chi-Town bias, I usually refer to any of these types of glass as Tru Vue, a classic etymological case of the Kleenex kind. Their anti-reflection coated museum glass is of interest to holographers for either covering framed holograms as their AR coatings eliminate glare from reflections of other parts of the gallery remarkably well, or in the lab when recording holograms, using the Tru-Vue glass to make a film sandwich with a minimal amount of wood grain in the final hologram.

A spread and spatially filtered 640 nm laser beam is incident on single strength window glass on the left and a sheet of Tru Vue on the right. The reflections off the glass land on a target card and are photographed. The uncoated glass's reflection was measured to be 2.5X more than the coated Tru Vue. Notice that there is still enough light reflected from the front and back of the Tru Vue to generate Newton's Rings, and those interference fringes are quite nicely parallel as opposed to the randomness of the uncoated glasses wood grain reflection, showing that the surfaces of the Tru Vue are reasonably parallel.

TruVueRed

The thickness of the glass is only 2.5 mm, so it is not so rigid, and the edges are quite sharp as a result of the cutting and coating processes.. Gloves are highly recommended when handling it. Although it can be done, it's no fun to cut. Tru Vue sells a special cleaner that will wipe off smudges and fingerprints but not harm the coating.