LIGHT EMITTING MODULE TESTING APPARATUS
First Claim
1. A light emitting module testing apparatus, comprising:
- a sensing unit including a photodiode array sensing light emitted from a light emitting module serving as a test object; and
a controller generating luminance information based on light sensed by the sensing unit, and setting an operating condition of the light emitting module serving as the test object by comparing the generated luminance information with a pre-set reference range.
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Abstract
A light emitting module testing apparatus includes a sensing unit and a controller. The sensing unit includes a photodiode array sensing light emitted from a light emitting module serving as a test object. The controller generates luminance information based on light sensed by the sensing unit, and sets an operating condition of the light emitting module serving as the test object by comparing the generated luminance information with a pre-set reference range. The light emitting module testing apparatus thereby senses luminance of light emitted from the light emitting module serving as a test object, and sets the operating condition of the light emitting module to have an appropriate luminance.
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Citations
20 Claims
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1. A light emitting module testing apparatus, comprising:
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a sensing unit including a photodiode array sensing light emitted from a light emitting module serving as a test object; and a controller generating luminance information based on light sensed by the sensing unit, and setting an operating condition of the light emitting module serving as the test object by comparing the generated luminance information with a pre-set reference range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A light emitting module testing apparatus, comprising:
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a sensing unit including a photodiode array sensing light emitted from a light emitting module serving as a test object, having a light source, and having a driving unit providing a pre-selected current to drive the light source; and a controller generating luminance information based on light sensed by the sensing unit, and comparing the luminance information with a pre-set reference range to set the pre-selected current value applied by the driving unit provided in the light emitting module to the light source such that the luminance information of light emitted from the light emitting module serving as the test object satisfies the pre-set reference range.
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16. A light emitting module testing apparatus, comprising:
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a sensing unit including a plurality of photodiodes disposed on a substrate for sensing, at locations of each of the plurality of photodiodes, light emitted from a light emitting module serving as a test object; and a controller coupled to the sensing unit, generating a luminance profile including, for each respective location of a plurality of locations of the photodiodes, luminance information of light sensed at the respective location, and generating a control signal based on comparing the luminance information of light sensed at each respective location with a pre-set luminance range for the respective location. - View Dependent Claims (17, 18, 19, 20)
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Specification