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AssigneeNisho Image Tech Inc.
InventorsHarunobu Yoshida, Tz-Liang Chang, Po-Hsiung Peng
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A method for detecting light amount uniformity is applicable to a light-emitting device including a plurality of light-emitting elements. First, the light-emitting device is placed in a sensed region of a photo-sensing apparatus. Then, the following steps are executed N times: during the nth execution, turning on the (n+i×N)th light-emitting element, where i is 0 or a positive integer, n is less than or equal to N, and n and N are positive integers; detecting light emission of the light-emitting element with the photo-sensing apparatus to produce a scanned image; and finally, comparing whether the bright spots corresponding to the light-emitting elements in the scanned images produced through the N steps are consistent, and outputting an output signal indicating whether the light-emitting device is normal or abnormal.
A method for detecting light amount uniformity of a light-emitting device, wherein the light-emitting device comprises a plurality of light-emitting elements arranged in series and the method for detecting light amount uniformity comprises:
A method for detecting light amount uniformity of a light-emitting device, wherein the light-emitting device comprises a plurality of light-emitting elements arranged in series, the method for detecting light amount uniformity comprising:
Dependencies are inferred from the claim text.