U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

3D Multichrome filters for spectacle frames

Patent 4247177 Issued on January 27, 1981. Estimated Expiration Date: Icon_subject January 15, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1422527

3D Color pictures with multichrome filters Patent #: 4134644
Issued on: 01/16/1979
Inventor: Marks ,   et al.

Inventors

Application

No. 06/003624 filed on 01/15/1979

US Classes:

351/44, With antiglare or shading351/163, With light filtering means359/464, With right and left channel discriminator (e.g., polarized or colored light)359/722, Selective wavelength transmitting or blocking359/887Sequentially additive

Examiners

Primary: Corbin, John K.
Assistant: Sugarman, Scott J.

International Classes

G02C 7/10 (20060101)
G02C 7/00 (20060101)
H04N 13/00 (20060101)

Abstract

This invention relates to a system for photographing, presenting and viewing 3D images, in which a set of mutually extinguishing multichrome "C" and "D" filters in spectacles is utilized to cover a first eye with a "C" blue filter and a second eye with a "D" orange filter. The "C" blue filter transmits at 400 to 500 nm.The "D" orange filter absorbs from 400nm to 500 nm and transmits from 500 nm to 700 nm. Standard color film may be utilized to photograph stereo image pairs of the subject in which a first image is in blue, and a second image is in orange. With this system, one eye transmits a first stereo image in blue via retinal receptors to the brain and the other eye transmits a second stereo image in orange via other retinal receptors to another portion of the brain. Thus, the stereo images are separated according to their 3-dimensional displacements and color. The brain integrates the color and 3D information received by the two eyes to produce a full 3D color picture. The 3D color system of this invention is compatible with still and movie color photography, printing inks, and color 3D TV. For color 3D TV using a cathode ray tube color screen, the blue dots display the first stereo image and the green and red dots display the second stereo image. Another set of "A" and "B" mutually extinguising filters is described, which may be employed in lieu of the set of "C" and "D" filters. A 3D color camera using multichrome filter sets is described which may be modified for use with film or TV.

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