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 Title: |
US5369450:
Electronic and computational correction of chromatic aberration associated with an optical system used to view a color video display
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Haseltine, Eric C.; Manhattan Beach, CA
Redmann, William G.; Simi Valley, CA
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| Assignee: |
The Walt Disney Company, Anaheim, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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| Published / Filed: |
1994-11-29
/ 1993-06-01
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| Application Number: |
US1993000069892
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| IPC Code: |
Advanced:
H04N 3/233;
H04N 9/28;
Core:
H04N 3/22;
more...
IPC-7:
H04N 3/233;
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| ECLA Code: |
H04N3/233C; H04N9/28;
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| U.S. Class: |
Current:
348/745;
315/368.12;
348/580;
348/746;
348/806;
348/807;
348/E03.045;
348/E09.021;
Original:
348/745;
348/580;
348/806;
348/807;
348/746;
315/368.12;
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| Field of Search: |
315/368.12,368.13
358/064,58
348/832,744-747,580,806,807
<H04N 928
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| Priority Number: |
| 1993-06-01 |
US1993000069892 |
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| Abstract: |
Methods and systems are presented in which at least one geometric distortion function is separately determined for application to a particular primary color component of a color video display to cause a geometric distortion that compensates for lateral chromatic aberration in an optical system used to view the display.
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| Attorney, Agent or Firm: |
Rowland, Mark D. ;
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| Primary / Asst. Examiners: |
Powell, Mark R.;
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
Show legal status actions
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| Family: |
None
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First Claim:
Show all 25 claims |
We claim:
1. A method for correcting a chromatically variant optical aberration of an optical system interposed in a display system between a viewer eye position and a display surface of a color video display device to form a virtual image of the display surface, comprising the steps of:
- providing color component image display control signals for a plurality of color components of an image to be displayed by the color video display device on the display surface;
- defining a distortion function for a particular color component of the color video display device based on the chromatically variant optical aberration of the optical system; and
- differentially transforming the color component image display control signals by applying the distortion function to a color component image display control signal for the corresponding particular color component to introduce chromatically variant distortion in the image displayed on the display surface that compensates for the optical chromatic aberration of the optical system in the virtual image.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 35 U.S. patent(s) that reference this one
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| Foreign References: |
None
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| Other Abstract Info: |
DERABS G95-014320
DERG95-014320
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| Other References: |
"Advanced technology: flat cold-cathode CRTs," Ivor Brodie, Information Display Jan. 1989, pp. 17-19, 1989.
"A Variable Acuity Display For Simulator Applications," Ralph W. Fisher, McDonnell Aircraft Company, 1982.
"Geometrical and chromatic aberrations of an off-axis holographic mirror," J. Phys. D: Appl. Phys. 21, pp. 96-98, 1988.
Modeern Optical Engineering: The Design of Optical Systems, Warren J. Smith, McGraw-Hill Book Company, pp. 49-71, 266-289 and 326-356, 1966.
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