Anaglyph stereoscopy

An imaging device according to either 1 or 2, wherein each of said complementary filters is partially desaturated so that it is at least partially transmissive to said remaining frequencies.

An anaglyph stereoscopic imaging device having a lens system, photoreceptor sensing means having a pre-established ratio (B.sub.s :G.sub.s :R.sub.s) of spectral sensitivities for blue, green, and red, and left and right complementary color filters near the aperture stop plane of said lens system, each of said filters transmitting essentially one portion of the spectrum of visual frequencies and blocking the remaining frequencies, the characteristics of each such filter being selected such that the integrated products over the wavelengths of interest of (a) the filter transmission characteristics, and (b) the photoreceptor spectral sensitivities for blue, green and red form a ratio (B.sub.fs :G.sub.fs :R.sub.fs) which is approximately the same as said pre-established ratio.

For use in an anaglyph stereoscopic imaging device having a lens system and photoreceptor sensing means having a preestablished ratio (B.sub.s :G.sub.s :R.sub.s) of spectral sensitivities for blue, green, and red:

• left and right complementary color filters, each of said filters transmitting essentially one portion of the spectrum of visual frequencies and blocking the remaining frequencies, the characteristics of each such filter being selected such that the integrated products over the wavelengths of interest of (a) the filter transmission characteristics and (b) the photoreceptor spectral sensitivities for blue, green and red from a ratio (B.sub.fs :G.sub.fs :R.sub.fs) which is approximately the same as said pre-established ratio.

A pair of glasses for viewing color encoded stereoscopic images, comprising cyan and red color lenses including complementary color filtering means, said lenses having approximately balanced luminosity characteristics, the cross-talk between said color filtering means being between about 5% and 15%, the transmittance of said cyan lens being greater than 57% at 510 nm and less than 10% at 630 nm, the transmittance of said red lens being less than 3% at 510 nm and greater than 80% at 630 nm.

A pair of glasses for viewing color encoded stereoscopic images, comprising green and magenta lenses including complementary color filtering means, said lenses having approximately balanced luminosity characteristics, the cross-talk between said color filtering means being between about 5% and 15%, the transmittance of said green lens being greater than 28% at 510 nm and 550 nm and less than 10% at 450 nm and 630 nm, the transmittance of said magenta lens being less than 30% at 510 nm, less than 10% at 550 nm and greater than 60% at 450 nm and 630 nm.