Image scanning apparatus and method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorSeung-je Joh
Life of this patent
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Abstract
An image scanning apparatus includes a light source unit having a plurality of lamps. A converter supplies power to the plurality of lamps and adjusts the power according to a desired light intensity of each the plurality of lamps. A controller controls the converter such that at least one of the lamps is overdriven for a predetermined amount of time when lamp warm-up is initiated. Thus, the length of time required to wait until an operational light intensity is reduced.
Claims24
An image scanning apparatus comprising:
- a light source unit comprising lamps;
- a converter to supply power to the lamps so as to individually adjust the intensity of light emitted from each of the lamps;
- and
- a controller to control the converter such that at least one of the lamps is overdriven while at least one of the lamps is normally driven, for a predetermined amount of time.
An image scanning method of an image scanning apparatus comprising lamps, the method comprising:
- applying power by a controlled power supply unit separately to the lamps during a warm-up operation of the image scanning apparatus;
- and
- overdriving at least one of the lamps while normally driving at least one of the lamps, for a predetermined amount of time.
An image scanning apparatus, comprising:
- light sources to respectively emit light at an intensity corresponding to an amount of power provided thereto and a temperature thereof;
- a converter to separately generate the amount power provided to each of the light sources;
- and
- a controller to control the amount of power generated by the converter so that at least one of the light sources is overdriven while at least one of the light sources is normally driven and so that light combined from all of the light sources is sufficient to illuminate an object and obtain scanned image data therefrom prior to the at least one normally driven light source reaching a normal operating temperature.
A method of scanning an object with an image scanning apparatus comprising:
- applying first power by a controlled power supply unit to normally drive a light source of the image scanning apparatus during a warm-up period;
- applying second power by the controlled power supply unit to overdrive another light source of the image scanning apparatus during the warm-up period;
- and
- obtaining scanned image data using a combined light from the normally driven light source and the overdriven light source, prior to the normally driven light source reaching a normal operating temperature.
Dependencies are inferred from the claim text.