Editing 3D display (section)

==== Interference filter technology ====
{{Main|Anaglyph 3D#Interference filter systems}}

[[Dolby 3D]] uses specific wavelengths of red, green, and blue for the right eye, and different wavelengths of red, green, and blue for the left eye. Eyeglasses which filter out the very specific wavelengths allow the wearer to see a 3D image. This technology eliminates the expensive [[silver screen]]s required for polarized systems such as [[RealD]], which is the most common 3D display system in theaters. It does, however, require much more expensive glasses than the polarized systems.  It is also known as '''spectral comb filtering''' or '''wavelength multiplex visualization'''

The Omega 3D/[[Panavision 3D]] system also uses this technology, though with a wider spectrum and more "teeth" to the "comb" (5 for each eye in the Omega/Panavision system). The use of more spectral bands per eye eliminates the need to color process the image, required by the Dolby system. Evenly dividing the visible spectrum between the eyes gives the viewer a more relaxed "feel" as the light energy and color balance is nearly 50–50. Like the Dolby system, the Omega system can be used with white or silver screens.  But it can be used with either film or digital projectors, unlike the Dolby filters that are only used on a digital system with a color correcting processor provided by Dolby. The Omega/Panavision system also claims that their glasses are cheaper to manufacture than those used by Dolby.<ref>"Seeing is believing""; Cinema Technology, Vol 24, No.1 March 2011</ref> In June 2012, the Omega 3D/Panavision 3D system was discontinued by DPVO Theatrical, who marketed it on behalf of Panavision, citing "challenging global economic and 3D market conditions".{{citation needed|date=May 2019}}
Although DPVO dissolved its business operations, Omega Optical continues promoting and selling 3D systems to non-theatrical markets. Omega Optical’s 3D system contains projection filters and 3D glasses. In addition to the passive stereoscopic 3D system, Omega Optical has produced enhanced anaglyph 3D glasses. The Omega’s red/cyan anaglyph glasses use complex metal oxide thin film coatings and high quality annealed glass optics.