Abstract:
A distance measuring apparatus using a cylindrical prism having a conical groove is provided to reflect laser beam of a light source in all directions by using a conical prism. A first cylindrical prism(20) has a conical groove for transmitting and reflecting laser beam generated from a laser beam generator(10). A second cylindrical prism(40) has a conical groove for reflecting the laser beam transmitted from the first cylindrical prism in all directions, and receives the reflected from the laser beam. A 1/4 wavelength plate(30) is interposed between the first and second cylindrical prisms to polarize the laser beam reflected from the second cylindrical prism to emit the beam toward the first cylindrical prism. Plural sensors(50-1,50-n) reflect the polarized laser beam through the first cylindrical prism.
Abstract:
본 발명은 침입자 감지를 위한 지능형 보안시스템 및 방법에 관한 것으로, 더욱 상세하게는, 퍼지면서 직진하는 평면빔을 발생하는 평면빔 발생장치와 상기 평면빔을 수신하는 평면빔 수신장치를 배치하여 침입자를 감지하되, 평면빔 발생장치와 평면빔 수신장치를 배치한 지지체를 서로 마주보도록 양쪽에 설치하고, 평면빔 발생장치는 지지체의 양끝에 배치하며, 평면빔 수신장치는 지지체의 중앙부위에 다수개 배치하는 한편, 양끝의 평면빔 발생장치에서 발생되는 평면빔은 반대쪽에 배치된 다수개의 평면빔 수신장치에 입사되도록 구성되어, 지지체 사이로 침입하는 침입자의 크기나 폭에 대한 정보를 확인하여 대처할 수 있는 침입자의 정보가 포함된 침입자감지를 위한 보안시스템에 관한 것이다. 평면빔 발생장치, 평면빔 수신장치. 침입자 크기. 침입자 넓이, 침입자 감지
Abstract:
본 발명은 점형태로 직진하는 레이저빔을 360도 전방위에 걸쳐 조사되는 다양한 형태의 3차원 평면빔을 만드는 장치에 관한 것이다. 본 발명의 레이저빔 발생장치는 레이저빔을 발생하는 레이저발생기, 및 레이저발생기로부터 출사되는 레이저빔을 입사하여 역원추면에 반사시켜 360도 전방위의 평면빔을 발생하기 위한 역원추형프리즘을 포함하는 것을 특징으로 한다. 본 발명에서 레이저발생기와 역원추형프리즘은 일체형으로 용이하게 결합되어 기계적으로 안정적이고, 빛이 진행하는 경로에 레이저나 조립기구에 의한 차단이 없어 360도 전방위에 걸쳐 연속적인 평면빔을 발생시키는 효과를 제공한다. 평면빔, 원추형빔, 역원추형프리즘, 광학부품, 레이저
Abstract:
An optical amplification apparatus includes a polarizing beam splitter for reflecting a portion of an incident light and transmitting a remaining portion of the incident light, depending upon a polarized state of the incident light, at least two optical amplification means each including a first polarizing plate which makes polarized states of the light before and after the light reflected from the polarizing beam splitter reciprocatingly passes through the first polarizing plate, to be orthogonal to each other, an amplitude division plate for amplitude-dividing the light having passed through the first polarizing plate, into first and second lights, and optical amplifiers for respectively amplifying the first and second lights which are amplitude-divided by the amplitude division plate. The optical amplification means are located such that the light output from upstream optical amplification means is incident upon the polarizing beam splitter included in downstream optical amplification means.
Abstract:
본 발명은 나노산업, 전자 및 광통신, 광메모리 분야 등에서 필수적으로 요구되는 나노급 정밀도를 가지는 미세한 3차원 자유곡면 형상을 단층으로 형성하는 방법에 관한 것으로서, 본 발명의 미세한 3차원 자유곡면 형성방법은, 그림파일 정보를 기초로 광경화성 수지에 대한 가공크기를 달리하는 가공영역과 비 가공영역을 설정하는 단계, 설정된 가공영역과 비 가공영역을 아스키형태의 메트릭스로 변환하는 단계, 상기 메트릭스에 기초하여 가공영역에만 선택적으로 레이저를 조사하되 가공크기에 따라 레이저 조사시간을 달리하면서 조사하여 광경화성 수지를 단층으로 경화시키는 단계, 및 광경화성 수지에서 경화되지 않은 부분을 제거하여 그림파일과 동일한 3차원 자유곡면을 갖도록 완성하는 단계로 구성된다. 본 발명은 레이저를 이용하여 광경화성 수지를 직접적으로 경화시켜 나노급 정밀도를 가지는 미세한 3차원 자유곡면 형상을 단층으로 형성함으로써 공정시간을 단축하는 효과가 있다.
Abstract:
A method for fabricating an ultra-micro mold is provided to rapidly form a mold at low cost by performing a new process using a laser apparatus. Photocurable resin of a predetermined thickness is formed on a glass substrate(S1). The photocurable resin is hardened by laser to form a resin pattern on the glass substrate(S10). The non-hardened part of the photocurable resin except the resin pattern is eliminated(S12). The surface of the glass substrate is etched by using the resin pattern as a mask to form a pattern corresponding to the shape of the resin pattern(S16). The resin pattern is separated from the glass substrate having the pattern by an ashing process(S18). A bonding process is performed to form a crystal layer on an opposite surface to the surface of the glass substrate having the pattern so as to increase the intensity of the glass substrate(S20).
Abstract:
PURPOSE: A manufacturing method of a micro three-dimensional metal shape using photo-crosslinked resin is provided to enable manufacture of a micro metal sculpture and a mold. CONSTITUTION: A manufacturing method of a micro three-dimensional metal shape using photo-crosslinked resin comprises steps of hardening photo-crosslinked resin by a laser and making a resin sculpture(500); removing a part not hardened from the processed resin; forming a layer made of a metal material to the surface of the hardened resin sculpture; plating the layer formed to the surface of the resin sculpture with dissimilar metals(520); and separating the resin sculpture from the plated metal(510) and making a mold in which the resin sculpture is engraved.
Abstract:
PURPOSE: An apparatus for generating the conical shape laser beam and a security device using the same are provided to generate the three dimensional conical laser beam by impinging the laser beam on the conical prism at a predetermined angle. CONSTITUTION: An apparatus for generating the conical shape laser beam includes a conical prism(63) and a laser beam generator. The conical prism has a radius with a predetermined size. The laser beam generator inputs the laser beam on the external surface of the conical prism. The laser beam generator is aligned in such a way that the laser beam generated at the laser beam generator is aligned with the central axis of the conical prism at a predetermined angle. The laser beam impinges on the external surface of the conical prism at a predetermined angle and a portion of the laser beam reflected from the external surface of the conical prism is diverged in a conical shape. And, the remaining portion of the laser beam transmitting into the conical prism is impinged in the conical shape after passing through the conical prism.
Abstract:
PURPOSE: An apparatus for measuring a three-dimensional shape of a transparent thin film using an acoustic optics tunable filter is provided to independently extract thickness information and shape information about a multi-level structure. CONSTITUTION: An apparatus for measuring a three-dimensional shape of a transparent thin film includes a light source(10) for emitting monochromatic rays, the first and second beam splitters(20,32), a Michelson interferometer module(30), an acoustic optics tunable filter, a CCD sensor(70). The second beam splitter splits the monochromatic rays emitted from the light source to send a part of the rays to a reference plane(33) and send another part of the rays to a measurement unit(80). The Michelson interferometer module includes a block plate(34) that selectively blocks irradiation of the monochromatic rays on the reference plane. The acoustic optics tunable filter selects monochromatic rays of a specific wavelength band from monochromatic rays irradiated on the filter. The first beam splitter allows reflection and transmission of the monochromatic rays among the light source, the second beam splitter and the acoustic optics tunable filter to be sequentially carried out. The CCD sensor forms an image from the monochromatic rays.