UPDATE: HADAMARD TRANSFORMS CONVERT IMAGES
FREE SOFTWARE AVAILABLE (I have not successfully done this.) 
Build a Holodeck!
computer 3D digital display s and interfaces:
This page is under construction.
If you don't understand it, hopefully soon you will.
(Apologies for not yet publishing all the available info,
but take it from here and run with it if you can!)
IP intentions: to SHARE practical knowledge but in no way lose the right to use it.
THE FOLLOWING TWO PAGES DESCRIBE A VOLUMETRIC
TO SKIP TO THE NEW, TRUE HOLOGRAPHIC ROOM IDEA, CLICK HERE.
-LINK: CONVERTING FLATSCREENS TO 3D/HUD MISCELLANEOUS METHODS
This project has been in it's current state since the summer of 2001,
and multiple demonstrations have not attracted development funding.
It is a "garage" project made entirely from spare parts and junk,
and to my knowlege none of it's components have been formerly
associated with empty-air 3D display projection before. The
unique mechanism does not appear to be capable of projecting,
but it does. There are no parabolic mirrors.
It can project and rotate 3D images of objects by itself,
or from a computer or modem. All of the images demonstrated thus
far are computer generated and with the programs itself do all fit
on one floppy disk.
EMPTY-AIR PROJECTION means No 3D Glasses and the image may be
I am aware of one complementary mechanism which can provide a
transmitting end of this system to implement 3D TV.
A few likely possibilities have been considered for implementing a
Light Pen to create objects. This may be simple enough to work
even when the display is not computer linked.
The main function of the mechanism is to project a cubic voxel bitmap
directly from RAM to midair. The resolution is arbitrary in the general
design of the system, and impressive for a zero budget prototype!
Obvious development plan for this system is:
- replace the unneccessary moving parts
- increase the resolution indefinitely and add color
- add more control functions and memory
Pictures and designs may be added soon.
History of development:
1987 - frugal dot matrix display for MC6809 system
1992 - 3D Earth Globe projector***
1993 - Rotating Cube projector (Cube 1)***
1997-1999 - Helical mirror "CUBE" projector (Cube 2)
2000- Parabolic Mirror "CUBE" projector (Cube 2.5)
2001- Mirrorless "CUBE" projector (Cube 3)- "The Holodeck"(next 4 and 5)
(see next page)
***Marked as experimental demo-only units containing only ROM.
Only in the most recent 2 prototypes has the image appeared in empty space.
Beginning of building instructions:
Again, this mechanism is based on the concept
a memory map of an image.
Consider for a moment how a simple video card works:
there is an area of memory in a computer which is being read
while the monitor is translating that data into light. Each BYTE
may represent a dot on the screen. The bytes can be visualized
as being arranged in a rectangular map of the screen. Which byte
contains which dot is numbered YX.
The holodeck contains memory banks visualizable as Cubes,
and where the memory contains "not zero", the projector projects
a dot of light. The number of the byte containing the dot is ZYX.
In both display systems, the display must continually feed the
memory contents into itself, while also allowing a computer to
access the memory and draw things on this (memory) map. And
so, when looking at a memory mapped display, you are peering into
an imaginary world contained in the computer's memory.
Memory contents can be translated easily to Video with nothing
more than a binary counter, Especially if the memory is ROM, and
the monitor has separate RGB and SYNC inputs.
The holodeck similarly translates the memory for it's projector.
The projector is much simpler than a monitor,
but this article on constructing it is not yet complete.
(C)William Como, 2003 - all rights reserved.
Developed in association with Paul Jeanneney,
This information may be used for non-commercial purposes.
Honorable mention to the co-host and source of the optics
who may or may not wish to remain anonymous.
notes:to self: Post screen capture of VB CUBE 2K failure.
notes:to self: Post appropriate liberated non-exclusive "license"
notes:to self: Post plans for poor man's VR helmet #2