Dolby 3D

The technique's logo A visual representation of how Dolby 3D works

Dolby 3D (formerly known as Dolby 3D Digital Cinema) is a marketing name for a system from Dolby Laboratories, Inc. to show three-dimensional motion pictures in a digital cinema.

## Technology

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Dolby 3D uses a Dolby Digital Cinema projector that can show both 2D and 3D films. For 3D presentations, additional filters are used in the projector, one filter each for the left eye and right eye. Each filter allows different frequencies of red, green, and blue light to pass through each of them. The filters are able to each produce a common color gamut but transmit light at different wavelengths. Glasses with complementary dichroic filters in the lenses are worn, which filter out either one or the other set of three light wavelengths. In this way, one projector can display the left and right stereoscopic images in an alternating cadence that is not visible to the guest.

In alternate forms one filter is placed in each of two projectors, both pointed at the same screen, one displaying the right eye image and one displaying the left eye image simultaneously. [1] This method of stereoscopic projection is called wavelength multiplex visualization, and was created by Infitec.[2][3] The dichroic filters in the Dolby 3D glasses are sometimes glass lenses and more expensive than the glasses technology used in circular polarization systems like RealD Cinema or linear polarization systems like Digital IMAX and are not considered disposable. However, an important benefit of Dolby 3D in comparison with RealD is that Dolby 3D works with conventional projection screens.[4]

## Gallery

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* Dolby 3D glasses

* Dichroic lenses

* Color filter design of the Dolby 3D system

## References

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1. ^ "Dolby 3D glasses - how it works". Kooptech Cinema. Archived from the original on 2018-11-11. Retrieved 2018-11-11.
2. ^ Sokol, John (June 3, 2009). "Video Technology: Dolby 3D Digital Cinema". Retrieved 2018-11-11.
3. ^ Klein, Alexander (1999). "Interference Filters (Wavelength multiplex visualisation) / Infitec". Stereoscopy.com FAQ. Retrieved 2024-12-08.
4. ^ "Dolby 3D Cinema Bundle". Dolby.com. Archived from the original on 2018-11-11. Retrieved 2018-11-11.

Wikimedia Commons has media related to Dolby 3D.

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Dolby Laboratories

Technologies and products|

* Dolby Atmos
* Dialnorm
* Dolby 3D
* Dolby Cinema
* Dolby Digital
* Dolby Digital Plus
* Dolby E
* Dolby Headphone
* Dolby noise-reduction system
* Dolby Surround/Pro Logic/Pro Logic II
* Dolby SR
* Dolby Stereo
* Dolby Surround 7.1
* Dolby TrueHD
* Dolby Vision
* Dolby Voice

Doremi Labs|

* CineAsset
* CineExport
* CinePlayer

People|

* Ray Dolby
* Thomas Dolby

Other|

* Dolby Theatre

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Stereoscopy and 3D display

Perception|

* 3D stereo view
* Binocular rivalry
* Binocular vision
* Chromostereopsis
* Convergence insufficiency
* Correspondence problem
* Peripheral vision
* Depth perception
* Epipolar geometry
* Kinetic depth effect
* Stereoblindness
* Stereopsis
* Stereopsis recovery
* Stereoscopic acuity
* Vergence-accommodation conflict

Display
technologies|

* Active shutter 3D system
* Anaglyph 3D
* Autostereogram
* Autostereoscopy
* Bubblegram
* Head-mounted display
* Holography
* Integral imaging
* Lenticular lens
* Multiscopy
* Parallax barrier
* Parallax scrolling
* Polarized 3D system
* Specular holography
* Stereo display
* Stereoscope
* Vectograph
* Virtual retinal display
* Volumetric display
* Wiggle stereoscopy

Other
technologies|

* 2D to 3D conversion
* 2D plus Delta
* 2D-plus-depth
* Computer stereo vision
* Multiview Video Coding
* Parallax scanning
* Pseudoscope
* Stereo photography techniques
* Stereoautograph
* Stereoscopic depth rendition
* Stereoscopic rangefinder
* Stereoscopic spectroscopy
* Stereoscopic video coding

Product
types|

* 3D camcorder
* 3D film
* 3D television
* 3D-enabled mobile phones
* 4D film
* Blu-ray 3D
* Digital 3D
* Stereo camera
* Stereo microscope
* Stereoscopic video game
* Virtual reality headset

Notable
products|

* AMD HD3D
* Dolby 3D
* Fujifilm FinePix Real 3D
* Infitec
* MasterImage 3D
* Nintendo 3DS
* New 3DS
* Nvidia 3D Vision
* Panavision 3D
* RealD 3D
* Sharp Actius RD3D
* View-Master
* XpanD 3D

Miscellany|

* Stereographer
* Stereoscopic Displays and Applications

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