US 9,958,693 B2Granted

System for 3D image projections and viewing

AssigneeDolby Laboratories Licensing Corporation

InventorsMartin J. Richards, Wilson Allen, Gary D Gomes

Life of this patent

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Abstract

Shaped glasses have curved surface lenses with spectrally complementary filters disposed thereon. The filters curved surface lenses are configured to compensate for wavelength shifts occurring due to viewing angles and other sources. Complementary images are projected for viewing through projection filters having passbands that pre-shift to compensate for subsequent wavelength shifts. At least one filter may have more than 3 primary passbands. For example, two filters include a first filter having passbands of low blue, high blue, low green, high green, and red, and a second filter having passbands of blue, green, and red. The additional passbands may be utilized to more closely match a color space and white point of a projector in which the filters are used. The shaped glasses and projection filters together may be utilized as a system for projecting and viewing 3D images.

Claims14

Dependent claims

Glasses enabling a user to view color 3D images transmitted as a pair of images, each image being formed from light in at least three different wavelength bands, one red, one green, and one blue, each of the wavelength bands of one image being outside of each of the wavelength bands of the other image, and each wavelength band extending between its respective shortest and longest wavelengths, the glasses comprising,

a first eye lens interference filter having spectral properties comprising a set of at least three visible light pass wavelength areas each light pass wavelength area configured to pass one of the red, blue and green wavelength bands of one of said images;
a second eye lens interference filter having spectral properties comprising a second set of at least three visible light pass wavelength areas each light pass wavelength area configured to pass one of the red, green and blue wavelength bands of the other of said images,
wherein, at the center area of the eye lens filter and with respect to light normal to the surface of the eye lens filter, the longest wavelength of at least one light pass wavelength area in each of said filters is shifted to a longer wavelength relative to the light wavelength band that passes through it such that the longest wavelength of that light pass wavelength area is at a longer wavelength than the longest wavelength of the light wavelength band that passes through that light pass wavelength area.

a first eye lens interference filter having spectral properties comprising a set of at least three visible light pass wavelength areas each light pass wavelength area configured to pass one of the red, blue and green wavelength bands of one of said images;
a second eye lens interference filter having spectral properties comprising a second set of at least three visible light pass wavelength areas each light pass wavelength area configured to pass one of the red, green and blue wavelength bands of the other of said images,
wherein, at the center area of the eye lens filter and with respect to light normal to the surface of the eye lens filter, the longest wavelength of at least one light pass wavelength area in each of said filters is at a longer wavelength than the longest wavelength of the light wavelength band that passes through that light pass wavelength area.

Dependencies are inferred from the claim text.

Facts

Application: 14/295,124Filed 3 Jun 2014 · continuation
Priority: 9 May 2007
Published: US 2014/0022637 A125 Sep 2014
Granted: 1 May 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G02B 5/285
Interference filters: comprising deposited thin solid films
G02B 26/008
The movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light: in the form of devices for…
G02B 30/23
Of the stereoscopic type: using wavelength separation, e.g. using anaglyph techniques
G02B 30/34
By providing first and second parallax images to an observer's left and right eyes: stereoscopes providing a stereoscopic pair of separated images…

Family

Application11/801,574Parent of this continuation · filed 9 May 2007
Application11/804,602Parent of this continuation · filed 18 May 2007
Application60/931,320Us provisional application · filed 21 May 2007
PCT/US2008/006007Parent of this continuation · filed 9 May 2008
Application13/942,455Parent of this continuation · filed 15 Jul 2013
US 2014/0285770 A1Pre-grant publication · published 25 Sep 2014
Application12/530,379Parent of this continuation
US 7,959,295 B2Parent of this continuation
US 7,784,938 B2Parent of this continuation
US 2008/0278807 A1Published application
US 2008/0284982 A1Published application
US 2010/0060857 A1Published application
US 2014/0022637 A1Published application
US 9,958,693 B2This patent

From the US filing history. Foreign family members aren’t listed.