Designing a 3D Theater: A Three-Dimensional Challenge (Part 3)

Monday, November 01, 2010

By Jennifer B. Davis

This is the third part in our three-part series on 3D theater design. In the first post, we featured information regarding overall 3D image quality. Second, we tackled brightness loss. In our final installment, we’ll handle the variety of issues related to 3D that are likely to affect the end users the most, which are the glasses.

3D Glasses -

The problem:

3D systems of all types for the home require glasses.  Some are bulky and require batteries (Active 3D). Others are slimmer and more stylish.  In any case, homeowners want glasses that are comfortable and work with the prescription glasses. Also, a lot of the content that is being released are titled intended for children and some of the glasses do not work well on their little faces.

The solution:

PreciseLight Glasses
  1. Runco’s PreciseLight™ glasses are battery-free and light on the nose. We do offer Active 3D solutions as appropriate, but homeowners and industry luminaries prefer passive and it is easy to see why.

  2. The PreciseLight glasses are a proprietary formulation which is unique to Runco. It was chosen for its exceptional stereo separation properties and light management. 6 pairs come complete with every 3Dimension product and additional sets of 6 are available at reasonable prices.

  3. Runco also offers a premium pair that are metal-rimmed and very stylish. They also feature a unique polarizer placement which compensates for the curve of the glass in the frames for even better performance.

  4. Runco also offers children’s size glasses for the youngest movie enthusiasts or sports fans.

  5. And for prescription glasses wearers, Runco has two options. First, we offer a clip-on style that can affix to your normal frames and allow for great 3D performance working with your corrective lenses. And in early 2011 we’ll be taking it further by offering prescription glasses in this same formulation. Talk about custom video!

Read this blog for future posts about 3D and for additional resources and tools in the design of 3D theaters. To read the previous installment, click here.

Upcoming Post-CEDIA Showcase Events

Wednesday, October 27, 2010

Runco is excited to announce a series of special events showcasing Runco’s latest products announced at CEDIA Expo 2010. Featured products will include the 3Dimension Series D-73d projector (Awarded the CEPro BEST Award at CEDIA for "Best New Product - 3D Flat Panel & Projector”), the LightStyle LS-10 projector, and the Vistage Series Ultra-Thin flat panel displays.

Upcoming events include:

  • Open House at Stereo Exchange in New York, NY - November 3, 2010
    Featuring a special evening of drinks, food and product demonstrations
    Visit StereoExchange.com for more information

  • Exclusive Dealer Event at Stewart Filmscreen in Los Angeles, CA - November 10-11, 2010

  • 3D Projector Cocktail Party at Gramophone in Bethesda, MD - November 16, 2010
    Visit Gramophone.com for more information

  • Showcase event at WorldWide Stereo in Philadelphia, PA - November 18, 2010 (products on display through November 21)
    Visit WWStereo.com for more information

  • Exclusive Dealer Event in Denver, CO - December 1-2, 2010

  • Exclusive Dealer Event at Advanced Audio Design in Sarasota, FL - December 7, 2010

  • Exclusive Dealer Event in Fort Lauderdale, FL - December 9, 2010

Designing a 3D Theater: A Three-Dimensional Challenge (Part 2)

Friday, October 22, 2010

By Jennifer B. Davis

This is the second part in our three-part series on 3D theater design. In the first post, we featured information regarding overall 3D image quality. Next we’ll tackle the biggest issue affecting physical theater and room set-up: brightness loss.

Brightness Loss -

The problem:

When you implement 3D onto a television or projection system, you can expect over 80% of the original brightness to be lost. This is independent of whether you are choosing an Active 3D approach (with glasses that contain batteries that shutter black frames at your eye to distinguish left from right) or the variety of passive approaches in the marketplace. As theaters around the world have been gearing up to show 3D releases of Avatar® or other films, they have opted for a silver screen featuring a gain between 2-3. This has rendered the theaters nearly unusable for 2D content (as it amplifies the inherently brighter 2D image). High gain screens come with their own challenges, which include hot spotting, limitations on roll-up and the tendency to crease, as well as screen shape and curve recommendations.

The solution:

  1. If you want to do 2D and 3D on the same screen, look for a projection system that maintains as much brightness in 3D as possible. For instance, the dual-imaging D-73d system from Runco RETAINS 80% of the light, instead of losing it. This makes designing one room to do both (with a single screen) much easier.
  2. To preserve brightness, we recommend a gain screen. We have developed a new CSMS-3D standard in which we provide you with specifications for the 3D products on a gain screen so that you can anticipate performance. You will find those on the spec sheets for our 3D products.
  3. There are some fantastic high-gain screens that are upwards of 10 gain that avoid hot-spotting with a spherical shape that produces exceptional results. At the very least, a curved screen will direct more light towards the viewing audience. So, it is more important than ever (especially since you want to create a large screen, immersive experience for 3D) to carefully consider screen type and shape.
  4. Although it is a common set-up in theaters to have a micro-perforated, acoustically-transparent screen so that speakers can be placed and hidden behind the screen surface, the perforations actually reduce effective brightness even further (sometimes by 50%). For a 3D theater in which you are trying to preserve brightness, this may be too much of a compromise. You may want to consider instead alternate speaker placements (above or below the screen being the most common). Some innovative installations may be made possible by new developments in 3D audio processing, which allow more flexibility.

Stay tuned for our next installment in this series.

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