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Infusion full-color digital hologram

Infusion full-color digital hologram
Click on image to see full rendering detail of hologram

Saturday, June 27, 2009


Forth Dimension Holographics is the USA service bureau for the direct-write, full-color, horizontal parallax only, reflection, digital hologram technology originally developed by GEOLA, and now being internationally branded as “i-Lumograms” (whew!). Other representatives include; Tutto-Tondo Srl. (Italy), M. Richardson (U.K.), and 4D Studio R (United Arab Emeritus).

This type of digital holography utilizing pulsed lasers was first invented by Dr. David Ratcliffe and his company, GEOLA. Development was over 5 years and many millions of dollars in cost. In addition to GEOLA’s i-Lumograms, this same type of hologram is also being produced and marketed separately as “Rabbitholes Motion Art” (Canada) by a company of the same name.

All i-Lumograms are currently being produced on a “holographic printer” by GEOLA in their laboratories in Vilnius Lithuania. This holographic printer consists of a pulsed RGB laser which use LCOS panels to encode digital data into the printer’s object beam. Using a 1 step, dot-matrix type of recording, i-Lumograms are produced on proprietary panchromatic, ultra-fine grain silver-halide film. After processing, holograms are finished by laminating to either PVC or glass substrates.

Currently i-Lumograms are printed in two resolutions; .8mm and 1.6mm holopixels. Formats range from 18x24 cm up to 1x1.5 meters in size for single panel holograms. Larger sizes can be realized through tiling. Generally, any i-Lumograms printed 40x60 cm or smaller utilize the .8mm, and anything over this size uses the 1.6mm resolution.

Content input can be CGI, digital photography, or a combination of the two. For computer generated content, existing 3D modeling programs such as Maya, 3DS Max, etc. are generally used following simple rendering specifications during design. For real-image capture, GEOLA has designed a line of linear rail digital image capture devices dubbed the HoloCam. With this hardware/software package, scenes can be recorded with up to several seconds of animation, ready to print directly into stereogram holograms.

Resulting files are uploaded to an FTP site, reviewed, and printed. Turnaround times from receipt of approved files is about 3 weeks for US customers currently. Presently, there are no minimums and we are willing to work with anyone who is interested in working in this new arena.

Recently GEOLA has developed a contact copy printer to increase output and reduce the cost of smaller i-Lumogram hologram production. With this system a master full-color i-Lumogram is produced and then contact copied via a line scanning recording geometry. Unfortunately, this method is only able to produce two-color holograms at this time.

If anyone wishes further information, or would like to explore this type of new digital holography they may contact us at infoatforthdimensiondotcom, or visit GEOLA’s web site at: www.geola.lt.