
Today's holography ephemera selection is a flyer / leaflet for workshops held at The Photon League in Toronto, Ontario, Canada. The workshop schedule covered the period from January to April 1990, and offer several types of workshops open to the general public. The workshops included: Introduction to Holography; Pseudo Color Reflection Holography; Trouble Shooting Workshop; and Rainbow Holography. It also announced the Photon League's first anniversary party & open house exhibit which was to be held on March 18, 1990.
It was printed in two inks (red, black) on 8.5 x 14-inch paper, quad folded, and used as its own mailer (name and address was written on the paper when folded). Considering that it came through the mail this way, it is in incredible condition. Remember, this paper was no thicker than standard xerox paper.
A few notes on the workshops themselves: The intro. workshop stated that it covered: how to make a hologram; the concepts of laser light; the physics of holography; laser transmission holography; white light holography; and take home a hologram. The pseudo color reflection workshop stated: how to make a multi color reflection hologram by preswelling the emulsion; how to calculate the angle changes and spatial filter changes for registration; the theory behind achromat holography; and additive color theory. The trouble shooting workshop stated: troubleshooting laser transmission holograms; what is coherence length?; the workshop covers design of the master hologram to minimize copying problems. And, the final workshop, rainbow holography states: the basics of white light transmission (or rainbow) holography; covers calculations needed to design a master and transfer "camera"; the theory behind making multiple color rainbow holograms.
The Photo League was (is?) an artist run, non-profit holography studio, and membership is open to canadian holographers and artists.
If you would be interested in participating in a holography workshop in the US, look no further than my own laser & holography studio here in Allentown, PA. More information on my long-running (26 years) holography workshops can be found at:
holographyworkshops.com