Patent application number | Description | Published |
20130027760 | OPTICAL PROBE USING SENSOR AND METHOD FOR CONTROLLING THE SAME - Disclosed are an optical probe using a sensor and a method for controlling the same. The optical probe includes: an optical converter to change a light path of light generated from a light source; a vibrator to convert an electrical signal into a mechanical motion; a transmission member to transmit the motion of the vibrator to the optical converter; a position sensor to sense the position of the optical converter; and a controller to adjust the position of the optical converter by controlling the vibrator based on the position sensed by the position sensor. | 01-31-2013 |
20130033573 | OPTICAL PHASE EXTRACTION SYSTEM HAVING PHASE COMPENSATIONFUNCTION OF CLOSED LOOP TYPE AND THREE-DIMENSIONAL IMAGEEXTRACTION METHOD THEREOF - Provided is an image extraction method of optical phase extraction system. The image extraction method may include checking whether a phase error due to an environmental disturbance of optical fiber occurs by monitoring an output signal obtained by interfering reflection optical signals reflected through two paths. When a phase error occurs, an error is compensated using a phase compensation control method of closed loop type through one of the two paths and an image is extracted by capturing an image of object in a state that the image of object is shifted by the set phase value when a phase error is compensated. According to the inventive concept, a phase error occurring in an optical fiber type interferometer due to an environmental disturbance is minimized or compensated. Also, since an interference image accurately shifted by the phase value set among arbitrary various phase values is obtained through a camera, reliability of three-dimensional phase information being extracted is guaranteed. | 02-07-2013 |
20130084633 | PETRI DISHES - Provided is a Petri dish, which improves or maximizes productivity. The Petri dish includes a dish including a bottom and a side wall, and accommodating a culture solution, and a cover covering an upper portion of the dish. The bottom of the dish includes a support region having a first thickness, and a measurement region having a second thickness smaller than the first thickness. | 04-04-2013 |
20130108262 | MULTI-CHANNEL OPTICAL MODULE | 05-02-2013 |
20140081126 | APPARATUS FOR GUIDING ENDOSCOPE AND METHOD THEREFOR - An apparatus for guiding an endoscope and a method thereof are provided. According to an embodiment of the present invention, there is provided an endoscope guide method including: acquiring tomogram information of tissues based on an optical interference signal according to an optical signal; calculating a distance between an endoscope and the tissues based on the tomogram information; and controlling the location of the endoscope according to the result of comparison between the distance between the endoscope and the tissues and a predetermined reference distance. Accordingly, it is possible to accurately measure the distance between an endoscope and tissues. | 03-20-2014 |
20140126062 | SUNLIGHT COUPLER AND SUNLIGHT SYSTEM COMPRISING THEREOF - A sunlight coupler is provided, the sunlight coupler may include a beam integrator configured to concentrate beams of sunlight, which may be incident from a plurality of optical fibers, in the form of a single beam, a triplet lens focusing the concentrated beam on a specific position, and an optical fiber provided for transmission of the focused sunlight. The optical fiber may be a thermally-diffusion expand core fiber. | 05-08-2014 |
20150043166 | OPTICAL TRANSMITTER MODULE WITH TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING THE SAME - The optical transmitter module may include a thermal-electric cooler comprising at least one metal pattern formed on a side of a cooling plate temperature of which is controlled by thermo-electric cooling elements, a laser diode installed in one of the at least one metal pattern, and a monitor photo diode which is installed in another one of the at least one metal pattern and monitors change of light signals emitted from the laser diode. Therefore, since elements are located on the same side of the cooling plate, the optical transmitter module may have a simple structure and an advantage that light signals emitted from the laser diode can be directly coupled to the optical fiber without optical path conversions. Also, since the laser diode is installed with a small gap from thermal-electric elements, the temperature control characteristics of the thermal-electric cooler can be enhanced. | 02-12-2015 |
20150159997 | WAVELENGTH-SELECTABLE COATING THICKNESS MEASUREMENT APPARATUS - Provided is an apparatus that measures a thickness of a coating by selecting a wavelength of a laser based on a color of the coating using a contactless method using a photoacoustic effect and an interferometer, the apparatus including a pulsed laser source to irradiate a pulsed laser beam toward the coating, a continuous wave (CW) laser source to irradiate a CW laser beam toward the coating, a detector to detect an optical interference signal corresponding to the CW laser beam, and a signal processor to process the optical interference signal to calculate a thickness of the coating. | 06-11-2015 |