Method and system for shaped glasses and viewing 3D images

Spectral separation glasses, comprising:

• non-flat lenses with spectrally complementary filters configured for use in conjunction with compensatory wavelength shifted projections of spectrally separated images;
• a first lens having a first spectral filter;
• and a second lens having a second spectral filter complementary to the first spectral filter;
• wherein the first lens and the second lens are each curved to reduce a wavelength shift that occurs when viewing an image at other than a normal angle through the lens;
• wherein the spectral filters have a thickness that varies by location on the lens.

Spectral separation viewing glasses, comprising:

• a first lens comprising a first spectral filter;
• and
• a second lens comprising a second spectral filter complementary to the first spectral filter;
• wherein:
• the first spectral filter and the second spectral filter have at least one guard band between adjacent portions of spectrum of the spectral filters;
• the guard band bandwidth is calculated based on an amount of blue shift occurring when viewing portions of spectrally separated images at an angle through the lenses;
• the spectrally separated images comprise pre-blue shift projected images;
• the guard band has a bandwidth sufficient to reduce crosstalk of
• spectrally separated images viewed through the glasses:
• and
• the guard band comprises approximately 2% or more of a wavelength of a crossover point of adjacent portions of the spectral filters.

A 3D viewing system, comprising:

• means for projecting spectrally separated images;
• means for viewing the spectrally separated images through different ocular channels;
• means for compensating for wavelength shifts occurring due to viewing angles to portions of the images;
• wherein:
• the means for compensating includes means for producing a wavelength mismatch between projector filters used to project the spectrally separated images and eye filters used to view the spectrally separated images, wherein the mismatch compensates for an amount of wavelength shift that occurs in the eye filters due to light incident upon the eye filters at non-normal angles;
• and
• the means for compensating includes means for adjusting an amount of spectral filtering performed based on viewing angle.

A viewing system, comprising:

• shaped glasses comprising a pair of left and right spectrally complementary filters respectively disposed on left and right curved lenses of the glasses;
• and a display system configured to display spectrally separated left and right images respectively configured to be viewed through the left and right complimentary filters;
• wherein:
• each spectrally separated image comprises at least one light bandwidth approximately matching at least one pass band of its corresponding filter and not matching in amounts equivalent to wavelength pre-shifting of displayed images and compensation for waveshifts that occur due to viewing angle;
• the spectrally complementary filters comprise layers that have a varying thickness;
• and
• the thickness of the filter layers increases toward edges of the lenses.

A viewing system, comprising:

• shaped glasses distributed to audience members;
• and a system for projecting first and second spectrally complementary images on a display screen within view of the audience members;
• wherein the shaped glasses comprise first and second shaped lenses having first and
• second spectrally complementary filters respectively disposed thereon;
• and
• the first and second spectrally complementary filters respectively correspond in bandwidth to the projected first and second spectrally complementary images filter and not corresponding in bandwidth in amounts equivalent to wavelength pre-shifting of the spectrally complementary images and compensation for waveshifts that occur due to viewing angle;
• wherein the spectrally complementary filters comprise a dielectric layer of increasing thickness toward edges of the lenses.