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-For the human brain to interpret a 2D image as 3D, each eye must see a slightly different image.
-The images need to be separated in their viewpoint by approx. 60 mm.
-The visual cortex of the brain interprets these 2 different images as 3D.
There are three primary types of 3D used in projection: Anaglyph, Polarized and Stereoscopic. Sharp Projectors incorporating DLP® Link™ Technology utilize the Stereoscopic format.
Uses different color filters to produce two images within one picture.
-Can be Red/Blue, Red/Green or Red/Cyan.
Pros: Inexpensive glasses; content is easy to create.
Cons: Quality is very poor.
Image separation achieved by polarizing the light differently.
Glasses filter the light so that each eye perceives a different image.
Pros: Inexpensive Glasses
Cons: High setup cost. Many polarized 3D systems require two projectors. Projectors must be perfectly aligned with one another.
Image is generated in a frame sequential format (alternating left and right frame).
Shutter glasses are synchronized with the image and turn on/off with each frame of data.
Pros: Image quality is better; additional hardware cost is less than the polarized option.DLP® Link™, which has become the standard among many projector manufacturers, utilizes this 3D format.
Cons: Glasses are more expensive than the passive polarizing type.
DLP Link is the technology that synchronizes the 3D display to the active glasses. Initially, DLP Link was developed by Texas Instruments several years ago for the DLP HDTV market.
The goal was to use the stereoscopic format, and eliminate the need for a separate external emitter. This solution takes advantage of the high switching speed of the DMD to include the synchronization with the glasses with the projected image. Although the cost of the glasses may be higher than the passive polarizing type, the need for additional hardware is removed. DLP Link has become the standard for 3D among many projector manufacturers, including Sharp.
For additional details, please visit the following web pages.
-DLP Link: www.dlp.com/projector/dlp-innovations/dlp-link.aspx
Currently, XpanD™ and RealD™ are two of the primary manufacturers of compatible 3D glasses.
XpanD brand glasses compatible with the DLP® Sharp 3D Ready projectors are available through the Professional Display Division of Sharp Electronics.
Some of the current 3D content providers include: Stereoscopic Player™, Neotek™, NVIDIA®, JTM Design Concepts, Designmate™, EON Reality™.
-There also are DVD titles which support 3D content in HQFS format. (HQFS stands for High Quality Field Sequential.)
3D content may be downloaded from the following websites.
Educational Institutions (K-12 and Higher-Ed): Arts, Sciences, Geography, etc.
Corporations / Government / Military: Training, Presentations, Simulations
Additional Applications include Medical, Architectural, and Gaming.
As of now, Stereoscopic DLP Link 3D-Ready projectors are only available utilizing DLP technology.
Currently, LCD projectors cannot provide high quality 3D-Ready Stereoscopic images due to limitations of the component panel.
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