Patent ID: 8084964

Claim:
A method for adjusting brightness of a light source, comprising: providing a light source with X brightness degrees; turning on and off the light source at least one time; when the number n of times of turning on the light source is less than or equal to the total number X of brightness degrees, determining the brightness degree of the light source being the n th brightness degree among the X brightness degrees; when the number n of times of turning on the light source is greater than the total number X of brightness degrees, determining the brightness degree of the light source being the m th brightness degree among the X brightness degrees, wherein the number m is equal to a remainder obtained by dividing the number n by the number X; and when the number n of times of turning on the light source is greater than the total number X of brightness degrees and the number m is equal to zero, determining the brightness degree of the light source being the last brightness degree among the X brightness degrees.