Abstract:
PURPOSE: A suction plate for a vacuum cleaner is provided to effectively perform sterilizing function and improve cleaning efficiency by mounting an ultraviolet lamp and comb type protrusions at the bottom of the suction plate. CONSTITUTION: A suction plate(10) for a vacuum cleaner is composed of a main body(11), a connecting unit(12) installed at the upper part of the main body and connected to the end of a suction pipe(2) in the vacuum cleaner, a suction port(13) connected to the connecting unit toward the bottom of the main body and communicated with the suction pipe, and a plurality of ultraviolet lamps(14) installed at the bottom of the main body not to block up the suction port. The ultraviolet lamp is electrically connected to a power input terminal(15) installed at the connecting unit through an electric wire(17), and radiates ultraviolet rays. A plurality of comb type protrusions(16) are formed at the whole bottom of the suction plate except the suction port and the ultraviolet lamps, and easily separates dust on a carpet during cleaning.
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.
Abstract:
본 발명은 이중공진기구조를 지닌 수동 Q-스위치 레이저에 관한 것이다. 좀 더 구체적으로, 본 발명은 이중공진기구조를 지녀 별도의 부대장비가 필요없이도 펄스폭의 변조가 가능하며, 짧고 대칭적인 레이저펄스를 방출할 수 있도록 구성된 수동 Q-스위치 레이저에 관한 것이다. 본 발명의 이중공진기구조를 지닌 수동 Q-스위치 레이저는 레이저매질 및 수동 Q-스위치매질을 지닌 수동 Q-스위치 레이저에 있어서, 전기한 레이저매질 및 수동 Q-스위치매질에서 방출되는 각각의 방출파장을 전반사하기 위한 공진반사경 ; 전기한 수동 Q-스위치매질에 방출되는 방출광에 대해 무반사특성을 지니며 전기한 레이저매질에 방출되는 방출광에 대해 10% 이상의 반사율을 지닌 이색반사경으로 구성된 주공진반사경 ; 및, 전기한 레이저매질에서 방출되는 방출광에 대해 무반사특성을 지니고 전기한 수동 Q-스위치매질에서 방출되는 방출광에 대해 10% 이상의 반사율을 지닌 이색반사경으로 구성되며 레이저빔의 횡방향으로 이동가능하도록 구성된 부공진반사경을 포함한다.
Abstract:
PURPOSE: A Fresnel lens for collecting solar energy is provided to easily manufacture the Fresnel lens and to optimize the design for the lens, thereby making the thickness of the lens thinner and maximizing solar energy collecting efficiency. CONSTITUTION: A Fresnel lens(10) for collecting solar energy comprises a wire frame(14) and a fixing pin(15). The wire frame is restored to an original state when being folded or transformed by pressure. The fixing pin maintains an original shape of the wire frame.