Abstract:
A hybrid lens with a high numerical aperture is described. The hybrid lens comprises a refractive surface that refracts incident light and a diffractive surface that diffracts light exiting the lens, the diffracting surface designed by a sag satisfying the following Equation: s a g = f D + m lambda - f D 2 + r 2 n - 1 , wherein f D is a distance from a center peak to a focal point of the hybrid lens, r is a height from a center axis to each peak of the hybrid lens, n is the refractive index of the hybrid lens, lambda is the wavelength of incident light and m is an integer. The hybrid lens is small and lightweight and capable of removing chromatic aberration.
Abstract:
PURPOSE: An integrated optical pickup is provided to comprise an optical bench forming an optical path, and to separate the optical bench and a condenser/optical path separation member into plural assemblies. CONSTITUTION: Main optical detectors(36a,36b) receive a light reflected from an optical information storage medium(D). A condenser/optical path separation member(37) focuses a light irradiated from a light source(32) on the optical information storage medium(D), and separates optical paths of the incident light of the optical information storage medium(D) and a reflected light of the optical information storage medium(D). An optical bench(31) is coupled with the condenser/optical path separation member(37), and forms an optical path. The optical bench(31) and the condenser/optical path separation member(37) are formed on wafers, respectively, and are separated into plural assemblies.
Abstract:
PURPOSE: A method for fabricating a hybrid micro-lens array is provided to form a low-priced hybrid micro-lens by improving a fabrication process. CONSTITUTION: A plurality of holes are formed on a substrate(11). A plurality of micro lens(13) are inserted into the holes. A melted glass solution(15) is injected into the micro lens. The melted glass solution is hardened. A polishing process for the substrate, the micro lens, and the glass is performed. A polymer is coated on an unpolished surface of the micro lens. The surface of the micro lens including the polymer is pressed by an aspheric mold(22). The polymer is hardened by the light. The aspheric mold is removed therefrom. The polishing process for the substrate, the micro lens, and the glass is performed.
Abstract:
PURPOSE: A method for manufacturing a micro lens array is provided to manufacture the micro lens array having a high accuracy of curvature by adding some process to the manufacturing process of a conventional micro lens array. CONSTITUTION: A method for manufacturing a micro lens array includes the steps of: forming a photoresist mask(40) in the form of cylinder on one side of the substrate(10) by using a photolithography; forming a predetermined shape corresponding to the micro lens by reflowing the mask with a heat; forming the micro lens by transferring the mask shape on the surface of the substrate by using a plasma etching; forming the photoresist(30) having a shape to compensate the curvature of the micro lens on the surface of the micro lens; and transferring the curvature shape of the photoresist(30) to the surface of the micro lens by plasma etching the photoresist(30).
Abstract:
Disclosed is a method of transferring a semiconductor element which can be used for transferring the semiconductor element formed on a non-flexible substrate to a flexible substrate. Also, disclosed is a method of manufacturing a flexible semiconductor device based on the method of transferring a semiconductor element. A vertical type semiconductor element formed or grown on a substrate can be more effectively transferred to a resin layer while its arrangement is maintained. The resin layer functions as a flexible substrate which supports the vertical type semiconductor element.
Abstract:
Disclosed are a display panel having improved light usage efficiency by efficiently recycling light provided from a light source, a display apparatus including the display panel, and a method of fabricating the display panel. The disclosed display panel according to an embodiment of the present invention may include a plurality of opening regions for forming an image by controlling transmission and blocking of the incident light; and an inclined reflecting plate disposed in a non-opening region to reflect the incident light obliquely.
Abstract:
PURPOSE: A manufacturing method of a nanocomposite having a superhydrophobic surface is provided to obtain the resistance improved nanocomposite for pollution and damages by directly forming the superhydrophobic surface on the surface of the nanocomposite. CONSTITUTION: A nanocomposite having a superhydrophobic surface comprises a bulk portion(10) and a surface portion(11) having the superhydrophobic surface. The bulk portion and the surface portion comprise the same material. The width, length, or distance between patterns of the superhydrophobic surface is 10 nanometers to 500 micrometers. The surface portion has the contact angle of 130 degrees to 180 degrees. The nanocomposite comprises a polymer base and a conductive filter. A superhydrophobic pattern is directly formed by molding or press-stamping on the nanocomposite.
Abstract:
PURPOSE: A super hydrophobic electromagnetic field shielding material and a method for preparing the same are provided to secure a super hydrophobic property by forming at least two recess patterns on a surface. CONSTITUTION: A super hydrophobic electromagnetic field shielding material(30) comprises a curing resin and a carbon material. The carbon material is 3 to 20 weight %. The super hydrophobic electromagnetic field shielding material includes a first recess pattern(40) and a second recess pattern(50). The first recess pattern includes a first recess groove formed in a solid surface. The second recess pattern includes a second recess groove(51). The size of the second recess groove(51) is smaller than that of the first recess groove. The second recess pattern is formed in the surface of the super hydrophobic electromagnetic field shielding material.
Abstract:
PURPOSE: A method of manufacturing a photonic crystal type color filter is provided to improve the regularity of a pattern by reducing the number of process. CONSTITUTION: A refraction material layer is formed on a substrate(130) and is pushed through a mold to form a two-dimensional photonic crystal color pattern structure. Crystallizing energy is applied to the refraction material layer. The mold adopts the two- dimensional photonic crystal color pattern structure and then the mold is separated.