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 Title: |
US5218386:
Eyeglasses with spectral color shift
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Levien, Raphael L.; McDowell, VA 24458
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| Assignee: |
None
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| Published / Filed: |
1993-06-08
/ 1991-06-19
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| Application Number: |
US1991000717750
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| IPC Code: |
Advanced:
G02C 7/10;
H04N 13/00;
Core:
G02C 7/00;
more...
IPC-7:
G02B 5/28;
G02B 27/22;
G02C 7/10;
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| U.S. Class: |
Current:
351/163;
348/E13.037;
351/165;
351/177;
359/464;
359/589;
Original:
351/163;
351/165;
351/177;
359/464;
359/589;
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| Field of Search: |
351/162,159,163,164,165,177
359/589,466,464
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| Priority Number: |
| 1991-06-19 |
US1991000717750 |
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| Abstract: |
The present invention is directed towards a method and apparatus for permitting human perception of more of the spectrophotometric values which define the color of an observed object. A first optical filter, worn over the left eye is provided having a spectral response containing three peaks; one for each of red, green, and blue, tuned to the maximum responsiveness of the human eye to red, green, and blue colors. A second optical filter, worn over the right eye, is similar to the left optical filter, but with the peaks tuned to complementary portions of the visual spectrum. In this manner, a dimension of color perception is added, because each eye sees different colors for the same object which when combined represent the actual color of the object.
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| Attorney, Agent or Firm: |
Jacobson, Allan ;
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| Primary / Asst. Examiners: |
Sugarman, Scott J.;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
DE FR GB IT NL
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| Family: |
Show 2 known family members
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First Claim:
Show all 9 claims |
What is claimed is:
1. Eyeglasses with spectral color shift comprising:
- first optical filter means visually neutral to white light for causing first visual color shifts by passing first optical wavelengths and blocking second optical wavelengths;
- second optical filter means visually neutral to white light for causing second visual color shifts by passing third optical wavelengths and blocking fourth optical wavelengths, wherein at lest some of said second visual color shifts of said second optical filter are different from said first visual color shifts of said first optical filter;
- a frame having first and second means for supporting said first and second filter means, respectively; and
- wherein each of said first and second visually neutral optical filters is a filter having a spectral response curve for which multiplying said spectral response curve by the CIE Standard Observer response curve for red, and integrating the result to produce a total value for perceived red light, and multiplying said spectral response curve by the CIE Standard Observer response curve for green, and integrating the result to produce a total value for perceived green light, and multiplying said spectral response curve by the CIE Standard Observer response curve for blue, and integrating the result to produce a total value for perceived blue light, provides repressive total values for said perceived red, green and blue light which are substantially equal to each other, and
- wherein substantially all visible spectra between said first, second, third and fourth optical wavelengths are transmitted by one of either said first optical filter or said second optical filter.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 13 U.S. patent(s) that reference this one
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