Abstract:
Provided herein is an optical module including: an optical receptacle including a first lens and a second lens; a lens module including a lens unit facing the second lens of the optical receptacle; and an optical element configured to receive a beam emitted from the lens module or form a beam to be emitted to the lens module. A horizontal length and a vertical length of a cross-section of the first lens may differ from each other, and a horizontal length and a vertical length of a cross-section of the second lens may differ from each other.
Abstract:
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.
Abstract:
Provided are an apparatus and method for adjusting an optical axis. In the apparatus, an iris diaphragm and a quadrant photodiode (QPD) are used to align optical axes of an optical system of the apparatus so that optical transmission efficiency between an optical transmitter and an optical receiver can be increased. Since a hole of the iris diaphragm can be adjusted to be small, a beam larger than a light-receiving area of the QPD can be included in the light-receiving area, and optical axis alignment is facilitated accordingly. When the QPD and the iris diaphragm are applied to the apparatus, it is possible to simultaneously perform data transmission, tracking, and optical axis alignment. An optical fiber end surface and optical axes of lenses arranged in parallel are aligned in the apparatus so that alignment between two terminals can be easy and reception efficiency can be increased.
Abstract:
Provided is an endoscopic apparatus for thermal distribution monitoring, and more particularly, an endoscopic apparatus for thermal distribution monitoring that is capable of providing a functional image in which various images such as a real image and a thermal image, are matched to one another. The endoscopic apparatus includes: an image collecting unit including a thermal image collecting unit collecting a thermal image from an image signal of an object and a real image collecting unit collecting a real image from the image signal of the object; a controller transmitting a control signal to the image collecting unit so as to transmit the image signal to one of the thermal image collecting unit and the real image collecting unit according to a preset period; and a display displaying the collected thermal image and real image.
Abstract:
Provided is an optical system which may acquire a hyperspectral image by acquiring a spectral image of an object to be measured, which includes, to collect spectral data and train the neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, a slit moving to scan the incident image and passing and outputting a part of the formed image, and a first optical part obtaining spectral data by splitting light of the image received through the slit by wavelength. Also, the system includes, to decompose overlapped spectral data and to infer hyperspectral image data through the trained neural network, an image forming part forming an image from an object to be measured and transmitting collimated light, and a first optical part obtaining spectral data by splitting light of the received image by wavelength.
Abstract:
Provided herein is a multi-channel optical module including a plurality of laser diodes emitting light with different wavelengths, a thermoelectric cooling device including the plurality of laser diodes, a TO-can including the thermoelectric cooling device, and a holder combined with the TO-can and including a plurality of optical lenses focusing the light with different wavelengths and a multiplexer gathering focused light into a single optical fiber, wherein the holder has a shape in which the TO-can is cut along an axis of a path of the light with different wavelengths for active alignment of the plurality of optical lenses.
Abstract:
A multi-channel optical module includes a stem configured to allow an optical active element transmitting and receiving an optical signal to be installed thereon, an optical module frame connected to the stem and configured to have an optical element forming an optical path corresponding to the optical active element, and an external housing configured to house the optical module frame therein and coupled to the stem, wherein the optical element includes a lens and a filter unit disposed in the optical path and an optical waveguide element to which an optical fiber is connected.
Abstract:
Disclosed are a bidirectional optical transceiver module and a method of aligning the same. The bidirectional optical transceiver module includes: a package having on one side a cavity; a platform mounted on the package; a transmitter which generates output light; a holder which includes the horizontal portion having the through-hole and disposed on the package to cover the cavity, and the vertical portion which has the inclined surface on one side and the connection hole connected to the through-hole; a receiver which generates an electric signal that corresponds to input light incident into the cavity; and a WDM filter that delivers the output light and the input light.
Abstract:
Provided are an optical system capable of improving the spatial resolution of hyperspectral imaging and an optical alignment method using the same. The optical system includes a digital micromirror device (DMD) having a rectangular shape, a first cylindrical lens curved to focus and form an image on an axis corresponding to a shorter side of the DMD, and a second cylindrical lens curved in the same axial direction as the axis to collimate light reflected from the DMD.
Abstract:
Disclosed is a spectroscopic device including a planar lightwave circuit to which light passing through an optical fiber is input, a wavelength divider configured to divide a wavelength of light passing through the planar lightwave circuit, a beam splitter configured to divide a traveling direction of light passing through the wavelength divider into an external sample inlet and an internal sample inlet and adjust power of the divided light, a charge-coupled device (CCD) image sensor configured to covert light transmitted from the internal sample inlet to an electrical signal or convert light reflected by the external sample inlet to an electrical signal, a control and signal processor configured to process the electrical signal to indicate a light intensity based on each wavelength, and an input and output interface configured to perform a spectrum analysis for each wavelength using the processed electrical signal.