公开(公告)号：US09958693B2

公开(公告)日：2018-05-01

申请号：US14295124

申请日：2014-06-03

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards ,  Wilson Allen ,  Gary D Gomes

IPC: G02B27/22 ,  G02B5/28 ,  G02B26/00 ,  H04N13/04

CPC classification number: G02B27/2228 ,  G02B5/285 ,  G02B26/008 ,  G02B27/22 ,  H04N13/324 ,  H04N13/334 ,  H04N13/363

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.

公开(公告)号：US10802293B2

公开(公告)日：2020-10-13

申请号：US15927645

申请日：2018-03-21

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Martin J. Richards ,  Wilson Allen ,  Gary D Gomes

IPC: G02B27/22 ,  G02B30/34 ,  H04N13/324 ,  H04N13/334 ,  G02B5/28 ,  G02B26/00 ,  H04N13/363 ,  G02B30/00 ,  G02B30/23

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.