STEREO projection

STUDIO 3D reviews 3D MOVIES
3D projection in theaters is now commonplace.
We see most of the 3D movies and review them for you!
DIGITAL 3D PROJECTION
Dual projectors must be precisely aligned for good stereo
Dual 1920x1080 alignment grid here

OMEGA 3D has been a game changer for digital stereo projection. For years the necessity of a silver screen has made it very difficult to project on the road, as well as incurring the expense of these special surfaces. This new interference technology not only allow 3D projection on any screen, but it's vitually ghost-free!

Optoma TH1060p digital video projectors
1920x1080 (full HD), 4500 lumens each...
on adjustable stand with Omega 3D filters.

Active 3D PROJECTION is done with a projector like the 144hz OPTOMA HD25-LV. We like the rechargable DLP-Link glasses from Sainsonic: Light, reliable and inexpensive. With an optional emitter you can also use RF type wireless glasses. DLP-Link sync is built in to most active 3D projectors.

Great thing about active projection, no silver screen needed. This projector can handle native frame-packed 3d video or .mpo format stills*. It also can be set to accept half res side by side or over/under stills or video.

*.mpo file must be from source via hdmi, such as a Blu-Ray player with media slot.

Projectors called "3D-ready" are set up for active glasses use.

STUDIO 3D began by setting some standards for digital projection in 2002 (as an upgrade from the "old-fashioned" slide projection). At that time moderately priced digital projectors ran a native 1024x768 resolution (2xga).

INFOCUS LP-530 dlp digital video projectors
1024x768 (xga), 2000 lumens... on adjustable stand with polarizers. SILVER SCREEN must be used for polarized projection!

DepthQ came out with an early active projector (2009).

DEPTHQ HD 120hz active digital video projector
1280x720 (wxga), 2000 lumens. With emitter and IR active glasses.

A ready made setup for dual projection passive 3D is currently being marketed by Epson. We've not seen this in action but it looks like a nice setup.

PowerLite W16SK 3D 3LCD Dual Projection System
1280x800 (wxga), 3000 lumens each. Comes with polarizers and ONE pair of (linear?) 3D glasses.

DEMULTIPLEXERS

These are used to split a "multiplexed" (frame-packed for 3D Blu-Ray) hdmi(1.4a) HD 3D signal
to two hdmi signals (one full left, one full right)

GEOBOX G-303

Single unit splits incoming 3D HDMI, outputs 2 full HDMI (L and R) signals. Perfect for passive 3D projection (dual projectors) from single source, such as 3D Blu-Ray player.

Unit available in our STEREO STORE.

OPTOMA 3D-XL

The discontinued OPTOMA 3D-XLs could be used with an HDMI splitter for passive 3D: one splits out the R signal, the other the L (via small switch on left side back).

LAPTOP PROJECTION

The MATROX DualHead2Go is the easiest way to run stereo slides from a laptop. Instant HORIZONTAL SPAN for your dual projectors... one vga cable out to the box, then two cables to L and R projectors.

We are currently using the SONY VAIO F 3D (discontinued) laptop for both viewing stereo and sending 3D to 3DTV and stereo projection systems that accept "page flip" 3D signal.

DESKTOP COMPUTER PROJECTION

Projection of stereo pairs from a Windows computer requires a dual head video card with a HORIZONTAL SPAN mode. The spanned monitors should be set to resolution of the projectors- preferably 1920x1080. for example: 2xga (2048 x768). For Windows 7, it's easiest to use the DualHead2Go (see laptop above).

*


NOTE about MOVING your STILL IMAGES:

Using the techniques above will allow excellent stereo projection of NON MOVING still images (no pans or zooms). In order to do "Ken Burns style" panning and zooming, we recommend Sony Vegas Pro software, which recognizes various 3D formats of both stills and videos.


1950 Boxoffice Magazine article calling for 3D MOVIES


STEREO SLIDE (transparency) PROJECTION 

In ancient times, people projected still images using 35mm transparencies called SLIDES (or "chromes").
The slide mounts were 2x2" square, and the size of the image was 24mm high by up to 36mm wide. For stereo, images were often cropped to 32mm wide (making an image that was "TV" size, with a 3:4 aspect ratio). Two projectors for one stereo image, four projectors allows one stereo pair to dissolve to the other, and back again.

Stereo slide projection has most professionally been done using multiple 2x2 (35mm) projectors. STUDIO 3D has created a number of stereoscopic slide presentations for schools, museums and clubs. Equipment has included:
  • 4 Ektagraphic slide projectors with HotSpot bright lamp housings, on Chief stands
  • 4, 70-120mm or 4, 110-200mm zoom lenses with polarizers
  • Dataton dissolve unit and Trax digital program (via Mac computer)
  • Various size silver screens, from 5x7.5' to 10x14.5'


All stereo pairs are set-up for cross-viewing.

STUDIO 3D stereo slide presentations included:

THE THIRD DIMENSION
an hour-long stereo slide production created especially for the college market, as an overview of the history of dimensional imaging. The show is in four parts:

ANTIQUE 1850-1938 / VIEWMASTER 1939- present / 3D BOOM 1950's / MODERN STEREO Contemporary

THE EYES HAVE IT
a 10 minute stereo slide production produced for The Liberty Science Center in Jersey City, NJ. After several successful years, another copy was generated for the Imaginarium in Ft. Myers, FL (still running!) and The Pacific Science Center in Seattle, WA

POWER OF PEOPLE
special 10 minute presentation for the National Association of Campus Activities

THE 3D SHOW
a 45 minute program designed by Aubrey Productions, Ltd., and toured to grammar schools by Ron Labbe from 1992-1996

 

Stereo SLIDE Services / Stereo PHOTOGRAPHY / Stereo VIDEO / COMPUTER Stereo /
ANAGLYPH Stereo / Stereo PROJECTION / Stereo FOR SALE / Ron Labbe / Stereo LINKS