Abstract: A test device, test system, and control method of the test device, which defines a light irradiating area in a reactor to prevent a decrease in magnitude of a detected signal that may result due to scattering of light that has penetrated other area of the reactor than an area containing an object for detection and improve a dynamic range. A test device may include a light source configured to irradiate light; a reactor configured to include at least one first area to contain an object for detection; and a photo detector configured to receive light that has been irradiated from the light source and has passed the reactor that contains the object for detection, wherein the light source is configured to limitedly irradiate the light to the first area of the reactor.

Abstract: Provided are a system and method for checking a state of a rotator. The system includes: a position recognition sensor that senses a position of a rotator and generates a position synchronization signal corresponding to the position of the rotator; a control unit that detects a position of a detection specimen existing in the rotator based on the position synchronization signal and generates an image photographing control signal corresponding to the detected position of the detection specimen; and a camera system that photographs an image of the detection specimen existing in the rotator based on the image photographing control signal.

Abstract: Provided are a method and/or apparatus for measuring the concentration of a detection target using the transmission or reflection of light. The system includes an illumination unit disposed over a biodisc and configured to apply light to the detection target included in the biodisc and a camera module disposed below the biodisc and configured to measure the amount of light transmitted through the detection target.

Abstract: Provided are a method of determining a brightness value of a target area on an optical image, and a computer-readable recording medium including a program for executing the method on a computer. Target brightness values of a plurality of target areas in an optical image are accurately compared with each other by plotting a graph with brightness values depending on positions within a subject.

Abstract: A test device and a control method thereof are provided. The test device includes a rotary drive unit to rotate the microfluidic device, a light emitting element to emit light onto the microfluidic device, a detection module arranged at a position facing the light emitting element and provided with a light receiving element to receive light emitted from the light emitting element and transmitted through the microfluidic device, a detection module drive unit to move the detection module in a radial direction, and a controller to control the rotary drive unit and the detection module drive unit.

Abstract: Provided are a centrifugal force-based microfluidic device, in which biochemical treatments of samples are executed, and a method of fabricating the centrifugal force-based microfluidic device. The centrifugal force-based microfluidic device is mountable on a rotatable device and includes: a disk-shaped portion; and an inlet hole defined within, configured to receive fluid from outside the centrifugal force-based microfluidic device having a first opening with a first inner diameter, and a second opening disposed on the first opening having a second inner diameter greater than the first inner diameter, and a depth of the second opening greater than a height of a fluid droplet formable in the second opening.

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.

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.

Abstract: Provided is a structure for fixing a camera module on a biodrive. The structure includes a socket fixed on a top surface of a printed circuit board (PCB) of the biodrive. The camera module is combined with the socket. A holder member is disposed over the camera module and covers the camera module. A plurality of fixing units may fix the holder member to fix the camera module on the PCB. The structure can prevent distortion and deviation of the camera module due to external shock.

Abstract: Provided are a disc chucking method of preventing mis-chucking from occurring according to a state and direction of a disc loaded onto a tray when the tray is closed, and a disc driving apparatus for performing the disc chucking method. The method include: opening a tray on which a disc in which a first magnet is installed is loadable; moving a feeding unit to a position where attraction between a second magnet installed in the feeding unit and the first magnet is relatively low; and if the tray is closed, placing a center of the disc in a turn table.

Abstract: Provided is a method of obtaining an image of a disc, in which the method obtains an image of an analysis or test result object of a disc by minimizing a difference between the positionings of a magnet of the disc and a magnet of a feeding unit, and an apparatus for driving a disc, wherein the apparatus performs the method. The method includes: fixing a positioning of a disc by using magnetic attraction between a first magnet installed on the disc and a second magnet installed on a feeding unit; minimizing a difference between the positionings of the first and second magnets; and obtaining an image of an analysis or test result object of the disc.

Abstract: A sample analysis apparatus to detect detection objects at various positions is provided. The sample analysis apparatus includes a disc including first and second detective regions. The first detective region is located at a first distance in a radial direction from the center of the disc and the second detective region is located at a second distance greater than the first distance. The apparatus further includes a light emitting element spaced apart from an upper or lower surface of the disc by a predetermined distance so as to face the first and second detective regions, and first and second light receiving elements positioned on the opposite side of the disc as that of the light emitting element while being respectively oriented to face the first and second detective regions. The light emitting element is configured to irradiate a uniform intensity of light onto the detective regions.

Abstract: Provided are a disc chucking method of preventing mis-chucking from occurring according to a state and direction of a disc loaded onto a tray when the tray is closed, and a disc driving apparatus for performing the disc chucking method. The method include: opening a tray on which a disc in which a first magnet is installed is loadable; moving a feeding unit to a position where attraction between a second magnet installed in the feeding unit and the first magnet is relatively low; and if the tray is closed, placing a center of the disc in a turn table.

Abstract: Provided are a system and method for checking a state of a rotator. The system includes: a position recognition sensor that senses a position of a rotator and generates a position synchronization signal corresponding to the position of the rotator; a control unit that detects a position of a detection specimen existing in the rotator based on the position synchronization signal and generates an image photographing control signal corresponding to the detected position of the detection specimen; and a camera system that photographs an image of the detection specimen existing in the rotator based on the image photographing control signal.

Abstract: Provided is a method of obtaining an image of a disc, in which the method obtains an image of an analysis or test result object of a disc by minimizing a difference between the positionings of a magnet of the disc and a magnet of a feeding unit, and an apparatus for driving a disc, wherein the apparatus performs the method. The method includes: fixing a positioning of a disc by using magnetic attraction between a first magnet installed on the disc and a second magnet installed on a feeding unit; minimizing a difference between the positionings of the first and second magnets; and obtaining an image of an analysis or test result object of the disc.

Abstract: Provided are a method of determining a brightness value of a target area on an optical image, and a computer-readable recording medium including a program for executing the method on a computer. Target brightness values of a plurality of target areas in an optical image are accurately compared with each other by plotting a graph with brightness values depending on positions within a subject.

Abstract: Provided are a method of correcting image distortion and a computer-readable recording medium including a program for executing the method on a computer. An image, distorted by uneven illumination and lens curvature of an apparatus such as a digital camera, is corrected to obtain an accurate image.

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.

Abstract: Provided is a structure for fixing a camera module on a biodrive. The structure includes a socket fixed on a top surface of a printed circuit board (PCB) of the biodrive. The camera module is combined with the socket. A holder member is disposed over the camera module and covers the camera module. A plurality of fixing units may fix the holder member to fix the camera module on the PCB. The structure can prevent distortion and deviation of the camera module due to external shock.

Abstract: Provided are a method and/or apparatus for measuring the concentration of a detection target using the transmission or reflection of light. The system includes an illumination unit disposed over a biodisc and configured to apply light to the detection target included in the biodisc and a camera module disposed below the biodisc and configured to measure the amount of light transmitted through the detection target.