Abstract:
The present invention pertains to a device for measuring a temperature distribution, which can measure a temperature distribution without contacting a sample having a three-dimensional structure. More specifically, the device for measuring the temperature distribution can measure a three-dimensional temperature distribution for the sample, wherein the temperature distribution in the depth direction (direction z) of the sample is measured by a heat reflection method using a chromatic dispersion lens, a diffraction spectrometer and an optical detection array; and the temperature distribution in the parallel directions (direction x-y axes) of the sample is measured by the heat reflection method using a two-axes scanning mirror.
Abstract:
The present invention relates to a jig for processing the inner surface of an aluminum alloy Winston cone baffle having the thickness of a sheet through an ultra-precision machining, the jig having a shape identically corresponding to the outer shape of a Winston cone baffle having a can body shape made up of compound parabolic, and divided into an upper plate jig and a lower plate jig in formation, wherein the upper plate jig is divided in two, a left side jig and a right side jig, which are formed to correspond in shape and size so as to enable isolation or coupling to/from each other, and the inner surface of the Winston cone baffle attached inside the upper plate jig is made to enable ultra-precision machining at the cutting speed of 220m/min - 300m/min, which enables the inner surface of the Winston cone baffle to process a slickenside having approximately 4nm of surface roughness, and in particular, ultra-precision machining at surface roughness of Ra=2.32nm in a processing condition of cutting speed at 260m/min, cutting depth at 4 micrometer, and feeding speed at 1mm/min, thereby enabling formation of a Winston cone baffle through low-cost ultra-precision machining.
Abstract:
The present invention pertains to a defect inspecting device, which comprises: a first optical unit for collimating each pair of rays so as to irradiate the same to an inspection position of an object to be inspected, wherein the pair of rays overlap each other at the edges thereof so that the overlapped areas is irradiated to the inspection position, a second optical unit for collimating each pair of rays so as to irradiate the same to the inspection position, wherein the pair of rays overlap each other at the edges thereof so that the overlapped area is irradiated to the inspection position; a control section for controlling the first optical unit and the second optical unit to be lighted alternately; and a camera for photographing the image of the inspection position using the incident light which is irradiated from the first optical unit or the second optical unit and then reflected from the inspection position.
Abstract:
Provided are a method of fabricating a microlens using selective etching of a compound semi-conductor and a method of fabricating a photoelectric device having the microlens. The formation of the microlens includes patterning a compound semiconductor layer and removing a lateral surface of the compound semiconductor layer to form a roughly hemispheric lens. The lateral surface of the compound semiconductor layer is removed by a digital alloy method. In particular, the lateral surface of the compound semiconductor layer is removed by a wet etching process.
Abstract:
The present invention relates to a paired-optical fiber probe with a single body lens and a method for manufacturing the same. The probe comprises a first optical fiber, a second optical fiber arranged in parallel with the first optical fiber, and an optical fiber lens which is formed by heating a predetermined region including one end of the first optical fiber and one end of the second optical fiber using heating means such that ends of the first and second optical fibers are integrally connected to each other and the optical lens has a lens surface with a predetermined radius of curvature. Thus, optical coupling efficiency may be effectively improved through a simple manufacturing process, and the probe of the present invention may be utilized in a fluorospectrometer or an imaging system adopting a reflectometry.
Abstract:
The present invention relates to a bit for processing the inside diameter of a work material, the bit having on the outer surface of a shank a vibration preventing structure comprising a vibration absorption body made of a silicone material, and a hollow wire rod, thereby absorbing the vibration generated from a machine tool, preventing resonance generated between the work material and a tool, and thus, enabling the implementation of a slickenside from ultra-precision machining.
Abstract:
Provided is a method of fabricating a micro-lens, including preparing a substrate having a step on top, forming a protection layer on the entire top surface of the substrate having the step, etching the entire surface of the protection layer to form a micro-lens having a radius of curvature on a top surface of the step, and etching the entire surface of the substrate having the micro-lens for the top surface of the step to be formed in a lens shape. Thus, the micro-lens can be integrated with a photoelectronic device in a self-aligned structure, and an additional process for forming the micro-lens is not necessary, so that the photoelectronic device in which the micro-lens is integrated can be fabricated more economically.
Abstract:
The present invention relates to an image sensor comprising a microlens array, and to a manufacturing method thereof. The method of the present invention gradually increases the aluminum composition ratio of a compound semiconductor as the latter gradually gets farther from a substrate, to enable a microlens-forming layer to grow, and makes the oxidation speed of the region adjacent to the substrate slower and the oxidation speed of the region farther from the substrate faster, making the interface between the oxidized region and the unoxidized region into a lens shape after the completion of oxidation. The thus-made lens is integrated into an image sensor. The present invention reduces costs for manufacturing image sensors in which a microlens is integrated, increases the signal-to-noise ratio and resolution of the image sensor, and achieves improved sensitivity.
Abstract:
The defect inspection device of the present example comprises: a first light source for shining a first light onto an inspection object; a retroreflective plate which retroreflects the first light reflected from the inspection object such that the first light again falls incident on the inspection object; a second light source which shines a second light onto the inspection object; and a camera which captures an image of the inspection object from the first light, which has been retroreflected and made to again fall incident on the inspection object by means of the retroreflective plate, and the second light emitted from the second light source.
Abstract:
The present invention relates to an optical system for a thermal image microscope. The optical system for the thermal image microscope comprises: an image forming unit in which a focus is formed; and a relay unit which elongates an optical path, wherein the image forming unit includes various lenses, the relay unit includes two lenses, and all the aspheric surfaces of the lenses are formed as convex surfaces. Thus, according to the present invention, optical performance is improved.