Method of adjusting brightness of illumination device and bio disk drive using the method
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-cheol Kim, Chung-ung Kim, Ki-ju Lee, Jong-jin Park, Dong-hwi Cho, Su-bong Bae
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Abstract
Provided are a method and apparatus for adjusting brightness of an illumination device that is used in photographing an analysis object in a bio disk. The method includes taking images of an analysis object in a bio disk; calculating brightness of the images of the analyzing object; and adjusting brightness of an illumination device which is used in the photographing operation of the analysis object in the bio disk based on a difference between the calculated brightness and a target brightness.
Claims12
A method of adjusting brightness of an illumination device, the method comprising:
- taking images of an analysis object in a bio disk;
- calculating brightness of the images of the analysis object;
- and
- adjusting brightness of an illumination device which is used in the photographing operation of the analysis object in the bio disk based on a difference between the calculated brightness and a predetermined target brightness,
- wherein in the adjusting of the brightness of illumination device, when the calculated brightness of the image is lower than the lowest target brightness, a voltage or a current supplied to the illumination device is increased, and when the calculated brightness of the image is higher than the highest target brightness, the voltage or the current supplied to the illumination device is decreased.
A bio disk drive comprising:
- a bio disk having a structure to analyze bio-materials;
- a camera module to take images of an analysis object in the bio disk;
- a controller to calculate brightness of the photographed images of the analysis object, and to generate an illumination control signal based on a difference between the calculated brightness and a predetermined target brightness;
- an illumination driver to generate an illumination driving signal based on the illumination control signal;
- and
- an illumination unit to generate light of an intensity which corresponds to the illumination driving signal, wherein the controller generates the illumination control signal for increasing a voltage or a current supplied to the illumination unit when the calculated brightness is lower than the lowest target brightness, and for decreasing the voltage or the current supplied to the illumination unit when the calculated brightness is higher than the highest target brightness.
Dependencies are inferred from the claim text.