Patent ID: 8189122
Filing Date: 2012-05-29
Classification: H04N

Abstract:
1. A method for automatic color wheel calibration in a projector, the color wheel including three primary colors and a non-primary color, said method comprising: (A) enabling the projector to project the non-primary color of the color wheel, and measuring, by a color meter, first optical physical amounts X (B) enabling the projector to project a color formed by a combination of the three primary colors of the color wheel which have respective color level values R (C) determining, by a computer device, difference values ΔX, ΔY and ΔZ of respective differences between the first optical physical amounts X (D) repeating steps (B) and (C) until the computer device determines that each of the difference values ΔX, ΔY and ΔZ approximates zero.