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3D Glasses

UK 3D Glasses specification

  • Plastic bipolar circular polarized
  • Lens thickness between
    0.275mm and 1mm
  • Polarized efficiency <=99.7%
  • Transmittance between
    41.5% and 43.7%
  • Compensation between
    124nm/138nm and 125nm/138nm

 

3D glasses

3D Polarisation is the technology which was used in James Cameron's Avatar and is currently used in IMAX theatres and film blockbusters such as Transformers 3, Harry Potter & The Deathly Hallows and Marvel's Captain America. 3D television services include Sky 3D TV and now ESPN 3D Sport.

It works by displaying two images intended for each eye from either two separate projectors, or, more typically, from a single projector with time multiplexed polarization (a fast alternating polarization device for successive frames).

Polarized 3D Glasses are then used with polarized filters to ensure that each eye receives only the intended image. Because the visual cortex of the brain is then receiving the picture from two separate viewing angles the image appears to be in 3D!

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3D Viewing Pointers

  1. Discard damaged 3D Glasses or if the lenses of the 3D Glasses become scratched as this will also cause negative effects and eye strain.
  2. 3D Glasses should be kept clean and treated as you would prescription glasses. Replacement 3D Glasses can be ordered online for next day delivery from us if ordered before 2pm.
  3. Don't sit too close to the 3D TV – a minimum of 2 to 3 metres. Move back if you sense eye strain or fatigue. Eye height and optimum viewing angles are especially important for viewing 3D. A tilt mount is essential if you have installed the 3DTV high up, as is often the case in public areas such as pubs.
  4. Don't watch 3DTV in the dark. Make sure there is sufficient ambient light so that you can focus on the frame of the 3DTV in order to make it easy for your eyes to establish the proper focal distance for the on-screen 3D images.
  5. Don't stare at out of focus objects on your 3DTV, because your eyes will automatically try to bring those objects into focus, and can't, this will cause eye strain.
  6. Limit the amount of extreme 3D and Out of the Screen effects, which often lead to eye strain. Consider sitting further back from the3DTV if there is a lot of it.
  7. The way the brain processes 3D information, viewers at different viewing angles will see somewhat different perspective views of the same 3D image. The effect can be quite large when a scene has significant depth.
  8. Don't combine large vertical viewing angles with off centre horizontal viewing because their combined Crosstalk and perspective effects are cumulative.
 
3D cinema glasses