Low differential 3-d viewer glasses and method

Details Low differential 3-d viewer glasses and method Low differential 3-d viewer glasses and method

H - Electricity

04

N

88/1, 96/234

H04N 13/00 (2006.01)

Patent

CA 1294801

ABSTRACT OF THE DISCLOSURE A method for creating a 3-D television effect is dis- closed in which a scene is recorded with a relative lateral movement between the scene and the recording mechanism (2). The recording is played back and viewed through a pair of viewer glasses (46) in which one of the lenses (18) is darker and has a spectral transmission characterized by a reduced transmissivity at at least one, and preferably all three, of the television's peak radiant energy wavebands. The lighter lens (20), on the other hand, has a spectral transmission characterized by a reduced transmissivity at wavelengths removed from the television energy peaks. The result is a substantially greater effective optical density differential between the two lenses when viewing television than in normal ambient light. This produces a very noticeable 3-D effect for television scenes with the proper movement, while avoiding the prior "dead eye" effect associated with too great a density differential in ordinary light. Further enhancement is achieved by providing the darker lens (18) with a higher transmissivity in the blue and red regions than in the yellow or green regions.

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