After displaying a working 3D system at Infocomm and NECC this past June, I have been overwhelmed with interest from all segments of the 3D industry. I have met with people from the manufacturing segment: glasses, video cards, projectors, and computers. I met people that produced 3D systems that utilized other technologies. I met 3D video and object content producers. I met distributors of 2D content that want to include 3D content in their offering. I met dealers that want to offer 3D systems and 3D content to their customers. I also met educators that want to know what is available and how to integrate it into their curriculum.
Based on the incredible interest I have seen in 3D, I believe the availability of more affordable technology will encourage content producers to develop more and more educational content that will enhance the learning experience in certain classes (primarily Math and Science). It also will enhance the design and engineering process in higher ed and the business world by allowing designers and engineers to better communicate their concepts and designs with decision makers and customers.
In the entertainment world, film producers of 3D videos are looking for more customers to buy their videos. Affordable display technologies will encourage producers to develop more videos knowing that more people will buy them and be able to show them in small venue 3D settings.
3D content can be a computer generated object that is either a static image or an interactive object. These objects, with the help of some display software, are able to be manipulated for enhanced viewing. Content can also be in the form of a video, much like what we have seen in 3D movies.
Displaying 3D content can be accomplished in several ways. Typically it involves using 3D glasses, but there are some technologies that work without them. These are quite expensive and are limited to the size of the display device's screen. The glasses can be active or passive. Passive glasses use varying technologies such as analglyph or polarized lenses. Active glasses use LCD shutters that are activated and synched with the image by either an infrared device connected to the video player or a newer technology that links the glasses to the image via DLP-link technology. This technology does not require an emitter because the image itself is the emitter.
The glasses are basically required, but they differ quite a bit in price. Active glasses are expensive (typically above $100 a pair) while passive glasses are relatively inexpensive (polarized are under $10 and analglyph are under $2).
Image quality varies quite a bit also. Analglyph glasses produce poor colors and shadowing. Polarized glasses have excellent color and very little shadowing, but you need to hold your head level to obtain the best viewing experience. LCD shutter glasses have both excellent colors, no shadowing, but cost more and require batteries.
Finally, I have learned that 3D is not easy to accomplish. In a single projector setup, it takes the right combination of components (projector, computer, video card, software, and glasses) to achieve the proper results. The settings on the projector, computer and video card also must be correct. In a twin projector polarized lens setup, the alignment of the two projectors is an added concern.