## STEPHEN A. BENTON MEMORIAL PAGE

The Inventor of the White Light Transmission Hologram, or as known in the vernacular, the Rainbow Hologram, but a Benton Hologram suits him best.

The image above was appropriated from Volume 10, Number 1 issue of CLOSE-UP magazine published by the Polaroid Corporation in the winter of 1979. Dr. Benton describes recent developments in holography 15 years after Leith & Upatnieks debuted laser lit holograms of diffusely reflecting objects.

Legend has it that Dr. Benton and his wife, Jeannie, made examples of the rainbow holography technology to spread the gospel of white light transmission. Here is what happens to the hue of the view when the eye of the beholder of the hologram moves vertically while viewing it, .

Here is the amusing story of how I met Dr. Benton when I worked at the notorious Gallery 1134.

Here is a *holographic copy* (as in drawn in Dr. Benton's own hand) of his *magnum opus*, on a par with Euclid's Elements, on the MATHEMATICAL OPTICS of WHITE LIGHT TRANSMISSION HOLOGRAMS.

Here is a slicker version of the above, as published in the 1982 Proceedings of the First International Symposium on Display Holography, available on eBay.

And this is the sequel to the above. These 2 papers have enabled me to answer virtually every "shop-floor math" problem I have encountered in designing Holographic Optical Elements and White Light Transmission Holograms.

The tongue in cheek title of "Experimental Verification of the Benton Math", goes beyond looking at equations and diagrams but also witnessing in the real world what the mathematics predict with a cleverly constructed experiment. Research was done at Lake Forest College in the spring of 1990, but not put into html until December 2015.

And here is looking at the same problem from a different viewpoint, courtesy of another Steve, surname of McGrew, that is from the same 1982 Proceedings of the First International Symposium on Display Holography, available on eBay.