Inspired by the process for creating compact disks, stamped holograms took Benton's rainbow holograms and made them cheaply reproducible through a mechanical process. Mike Foster developed the process and Steve McGrew made it commercially viable.
Other types of white light holograms, such as the two-step "rainbow" white light transmission hologram that Steve Benton created or the white light reflection hologram of Yuri Denisyuk are both holograms proper -- they are both made using a traditional holographic process.
A transmission white light hologram has less controllable color because it uses broad spectrum diffraction. A white light reflection hologram uses a thick diffraction pattern to additionally filter white light down to a narrow spectrum, producing a more pure color. Full color reflection holograms can be produced by superimposing multiple diffractive patterns in the hologram layer, one for each primary color.
http://www.holoeast.com/holography/holograms_maiking.html
Inspired by the process for creating compact disks, stamped holograms took Benton's rainbow holograms and made them cheaply reproducible through a mechanical process. Mike Foster developed the process and Steve McGrew made it commercially viable.
Other types of white light holograms, such as the two-step "rainbow" white light transmission hologram that Steve Benton created or the white light reflection hologram of Yuri Denisyuk are both holograms proper -- they are both made using a traditional holographic process.
A transmission white light hologram has less controllable color because it uses broad spectrum diffraction. A white light reflection hologram uses a thick diffraction pattern to additionally filter white light down to a narrow spectrum, producing a more pure color. Full color reflection holograms can be produced by superimposing multiple diffractive patterns in the hologram layer, one for each primary color.