Abstract:
The present invention relates to a portable holographic microscope capable of observing a three-dimensional image of an object with high resolution in real time and being manufactured in a simple and compact structure with low costs. To this end, the present invention comprises a light source which generates light; a pin hole which is formed on an optical path at the back side of the light source and filters the light generated from the light source; a light separator which separates the parallel light passing through the pin hole into two optical paths; a reflector which reflects the light reflected by the light separator; a phase modulator which controls the phase of the reflected light through the reflector; and an image sensor which detects the reflected light through the reflector and light including information of the object and converts the light into an image signal.
Abstract:
PURPOSE: A laser system using an external resonator is provided to prevent the steering and shifting of a laser beam caused when modulating wavelengths and to enable accurate control through feedback. CONSTITUTION: A laser diode (101a,101b) emits a laser beam. A diffraction grid (104) diffracts the laser beam emitted from the laser diode. A reflecting mirror (105) reflects the laser beam diffracted by the diffraction grid. The laser beam reflected by the reflecting mirror passes through a glass plate (106). [Reference numerals] (110) Control unit; (120) Temperature sensor
Abstract:
PURPOSE: A hand shake stabilizing actuator and a camera with the same are provided to adopt ball guides of a 3-point support type which are in a ductile relation, thereby preventing hand shake stabilizing performance from being decreased even through the size of one of the three balls is different from each other due to abrasion. CONSTITUTION: A hand shake stabilizing actuator comprises a stator(10) and a mover(12). The mover is loaded on the stator to be in two shaft directions, and a correcting lens is mounted on the mover. Ball guides arranged into a triangle form are installed between the stator and the mover. Coils and magnetic materials are arranged in the stator and the mover, respectively, thereby forming three magnetic circuits. [Reference numerals] (AA) Cross section A-A
Abstract:
PURPOSE: A core for a cylindrical electronic motor and a cylindrical electronic motor using the same are provided to prevent the decline of driving thrust of a motor by preventing magnetic saturation locally generated according to the thickness of the core. CONSTITUTION: A ring shaped coil(21) is arranged at the inner periphery of a circular tube shaped core body(41). Multiple coil arrangement grooves(42) are formed in the shape of a concavely hollowed ring. A protrusion part(43) is formed corresponding to the integral coil arrangement groove. The protrusion part is formed at the entire circumference of the outer periphery of the core body to be the same height. The protrusion part is protruded in a radial direction as deep as the depth of the coil arrangement groove corresponding to the same radial direction.
Abstract:
본 발명은 나노 스케일(nano scale)의 개구가 형성된 금속층과 복수의 금속 나노 입자가 형성된 유전체층이 결합된 복합형 광 도파로에 관한 것으로서, 금속층의 나노 개구를 통해 입사된 광을 나노 개구 부분에서 일차적으로 증폭시킨 후 유전체층에 형성된 금속 나노 입자들 사이에서 이차적으로 재증폭시키는 다중 표면 플라즈몬 공명 효과(multiple surface plasmon resonance effect)를 이용하여 입사광 대비 큰 증폭률을 갖는 서브파장 크기의 작고 강한 광 스팟(light spot)을 형성할 수 있도록 한 복합형 광 도파로 및 이를 이용한 광증폭기 및 광 증폭방법을 제공한다. 광 도파로, 개구, 유전체, 표면 플라즈몬 공명(SPR;Surface Plasmon Resonance), 리지(ridge)