US 11,994,702 B2
System for 3D image projections and viewing
Martin J. Richards, Gig Harbor, WA (US); Wilson Allen, Mill Valley, CA (US); and Gary D. Gomes, Union City, CA (US)
Assigned to DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed by DOLBY LABORATORIES LICENSING CORPORATION, San Francisco, CA (US)
Filed on Jul. 12, 2022, as Appl. No. 17/862,647.
Application 17/862,647 is a continuation of application No. 17/065,844, filed on Oct. 8, 2020, granted, now 11,585,971.
Application 17/065,844 is a continuation of application No. 15/927,645, filed on Mar. 21, 2018, granted, now 10,802,293, issued on Oct. 13, 2020.
Application 15/927,645 is a continuation of application No. 14/295,124, filed on Jun. 3, 2014, granted, now 9,958,693, issued on May 1, 2018.
Application 14/295,124 is a continuation of application No. 13/942,455, filed on Jul. 15, 2013, abandoned.
Application 13/942,455 is a continuation of application No. 12/530,379, abandoned, previously published as PCT/US2008/006007, filed on May 9, 2008.
Application 12/530,379 is a continuation of application No. 11/804,602, filed on May 18, 2007, granted, now 7,959,295, issued on Jun. 14, 2011.
Application 11/804,602 is a continuation of application No. 11/801,574, filed on May 9, 2007, granted, now 7,784,938, issued on Aug. 31, 2010.
Claims priority of provisional application 60/931,320, filed on May 21, 2007.
Prior Publication US 2022/0342131 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G03B 21/14 (2006.01); G02B 5/28 (2006.01); G02B 26/00 (2006.01); G02B 30/23 (2020.01); G02B 30/34 (2020.01); H04N 13/324 (2018.01); H04N 13/334 (2018.01); H04N 13/363 (2018.01)
CPC G02B 5/285 (2013.01) [G02B 26/008 (2013.01); G02B 30/23 (2020.01); G02B 30/34 (2020.01); H04N 13/324 (2018.05); H04N 13/334 (2018.05); H04N 13/363 (2018.05)] 11 Claims
OG exemplary drawing
 
1. A projection system, comprising:
3D viewing glasses, the comprising:
a first eye lens filter operative to pass wavelengths of light of a first channel of a 3D image and block wavelengths of light of a second channel of the 3D image; and
a second eye filter operative to pass wavelengths of light of the second channel of the 3D image and block wavelengths of light of the first channel of the 3D image;
wherein for at least one lens filter among the first and second eye lens filters, a spectral property varies across the lens filter such that spectral property at a center of the lens filter is different from that spectral property toward an edge of the lens filter, so that the spectral property of the lens filter is shifted toward longer wavelengths relative to wavelengths of light which the lens filter is intended to be operative; and
a projector configured to project the first channel of the 3D image in blue, green, and red wavelengths of light and to project the second channel of the 3D image in blue, green, and red wavelengths of light, wherein the pass areas for at least one lens filter among the first and second eye lens filters in at least one of the blue, green, and red wavelengths of light is longer than the corresponding wavelengths for at least one of the first and second channels of the 3D image in an amount greater than 0.6%*W, wherein W is a wavelength of a filter band.