Patent ID: 8237780
Filing Date: 2012-08-07
Classification: G02B,H04N

Abstract:
1. An apparatus for three-dimensional image viewing of an image display, comprising: a pair of viewing glasses having a glasses frame, and left and right side lenses for alternate left-eye and right-eye image viewing by alternately blocking and passing left and right-eye image views from the image display; an image monitor built in with the glasses frame which is configured to detect lens sync control information included within image frames viewed on the image display, the image monitor comprising a wide angle lens used with a narrow band light filter in conjunction with a high amplification phototransistor in order to reduce noise from ambient light sources, the sync control information being selected from the group consisting of a localized spot of specific light wavelength and a coloration of the image frame of narrow wavelength which coincides with a wavelength transmitted by the narrow band light filter, the sync control information being detected by the image monitor as pulses that are converted into a digital signal by an associated timing and pulse logic circuit; and a decoder built in with the glasses frame configured to receive the lens sync control information and provide left and right lens control signals for alternately blocking and passing of left and right-eye image views by the respective left and right side lenses to provide the perception of three-dimensional image viewing to a user.