Abstract:
레이저 반점을 제거한 조명계 및 이를 채용한 1 패널식 프로젝션 시스템이 개시되어 있다. 이 개시된 조명계는, 복수의 레이저빔을 순차적으로 출사하는 레이저 광원; 상기 복수의 레이저빔에 대응되는 회절 패턴을 가지는 세그먼트들로 구획되고, 상기 레이저빔의 순차적인 출사에 동기되어 운동하는 제1 회절광학소자;를 포함하고, 상기 제1 회절광학소자의 운동에 의해 레이저빔을 시간에 대해 평균화시킴으로써 레이저 반점을 제거하는 것을 특징으로 한다. 상기 구성에 의해 레이저 광원이 갖는 반점을 제거한 조명계를 제공하고, 이러한 조명계를 채용하여 화질이 개선된 프로젝션 시스템을 제공한다.
Abstract:
레이저 반점을 제거한 조명계 및 이를 채용한 프로젝션 시스템이 개시되어 있다. 이 개시된 조명계는, 적어도 하나의 레이저를 가지는 레이저 광원; 상기 레이저 광원에서 출사된 빔을 복수의 부분 빔으로 나누고, 주기적인 운동에 의해 레이저빔의 반점을 시간에 대해 평균화시킴으로써 반점을 제거하도록 된 제1 회절광학소자;를 포함하는 것을 특징으로 한다. 상기 구성에 의해 레이저 광원이 갖는 반점을 제거한 조명계를 제공하고, 이러한 조명계를 채용하여 화질이 개선된 프로젝션 시스템을 제공한다.
Abstract:
A light coupling device and an image projection apparatus using the same, wherein photoconductive media of the light coupling device include optical fibers that transmit light. Each light coupling device has at least two input terminals, at least two output terminals, and a connector connecting the input and output terminals, wherein the connector forms at least one light path. The light coupling device receives and divides respective R, G, and B monochromatic light beams. By connecting a light source with multiple optical instruments via the light coupling devices, images can be projected on multiple screens. Further, by using optical fibers to transmit light beams, the size of image instruments is minimized and light loss is reduced.
Abstract:
PURPOSE: A color splitter using dichroic mirror wheels and an image projection system employing the color splitter are provided to minimize a light loss by using a plurality of dichroic mirror wheels. CONSTITUTION: A color splitter includes the first, second, third and fourth reflection wheel units(232,234,236,238). The first reflection wheel unit selectively reflects and transmits a plurality monochromatic light beams included in lights emitted from a light source. The second reflection wheel unit is located distant from the first reflection wheel unit, and selectively reflects and transmits monochromatic light beams included in light that has not passed through the first reflection wheel unit. The third reflection wheel unit selectively reflects and transmits monochromatic light beams included in the light that passes through the first reflection wheel unit and is placed distant from the second reflection wheel unit. The fourth reflection wheel unit selectively reflects and transmits monochromatic light beams included in the light that passes through the second reflection wheel unit and is located distant from the third reflection wheel unit.
Abstract:
PURPOSE: A bidirectional image projection system is provided to display an image on both sides of the image projection system using a dichroic mirror wheel and a color filter. CONSTITUTION: A bidirectional image projection system(200) includes a light source(210) for emitting a plurality of monochromatic rays having different wavelengths, a color split reflection wheel(230) having a plurality of regions that selectively reflect and transmit the monochromatic rays, and a color split transmission wheel(240) for having a plurality of regions that selectively transmit and block the monochromatic rays that have passed through the reflection wheel. The transmission wheel is placed under the reflection wheel. The system further includes a mirror(250) for reflecting the monochromatic rays that have passed through the transmission wheel in a direction different from the traveling direction of the monochromatic rays that have been reflected from the reflection wheel, a plurality of square beam generator(260a,265a) for converting the monochromatic rays inputted thereto into a square beam, and a plurality of panels(270,275) for receiving the monochromatic rays traveling in different directions to display an image.
Abstract:
PURPOSE: An image projection system is provided to increase a light utilization rate in a single panel using a high-reflection mirror and remove a boundary overlap in each beam region. CONSTITUTION: An image projection system includes a light source(210) for emitting a plurality of monochromatic light beams having different wavelengths, a light transmitter(220) composed of a plurality of optical fibers through which the monochromatic light beams pass, and an optical switch(230) composed of a plurality of reflection mirrors for selectively reflecting the monochromatic light beams at a predetermined angle. The image projection system further includes a unit(260) for converting the reflected monochromatic light beams into uniform plane light beams, a plurality of panels(270) for receiving the plane light beams to form monochromatic images corresponding to the monochromatic light beams, and a plurality of projection lenses(280) located in opposite to the panels.
Abstract:
PURPOSE: A laser apparatus for projecting image having a multichannel sound optical modulator, a method for driving the same, and a circuit for driving the same are provided to improve image processing capacity of optical modulators and scanning speed of optical scanning elements. CONSTITUTION: An optical modulating unit(P2) is formed of multichannel sound optical modulators including at least six or more optical modulating channels to optically modulate a plurality of red, green, and blue beams at the same time. A light source unit(10) emits beams to be used for projecting an image. A first optical path change element(21) changes a path of the beams. First and second optical transmitting/reflecting units(67a,68a) sequentially separate first and second beams from the beams entered from the first optical path change element. A second first optical path change element(69a) changes a path of the beams entered from the second optical transmitting/reflecting unit. First to third monochromatic light dividing elements(26,27,28) equally divides the beams as many as the optical modulating channels. First to third lens groups(64a,65a,66a) focus the beams entered from the monochromatic light dividing elements on the channels formed at the optical modulators.
Abstract:
레이저 반점을 제거한 조명계 및 이를 채용한 1 패널식 프로젝션 시스템이 개시되어 있다. 이 개시된 조명계는, 복수의 레이저빔을 순차적으로 출사하는 레이저 광원; 상기 복수의 레이저빔에 대응되는 회절 패턴을 가지는 세그먼트들로 구획되고, 상기 레이저빔의 순차적인 출사에 동기되어 운동하는 제1 회절광학소자;를 포함하고, 상기 제1 회절광학소자의 운동에 의해 레이저빔을 시간에 대해 평균화시킴으로써 레이저 반점을 제거하는 것을 특징으로 한다. 상기 구성에 의해 레이저 광원이 갖는 반점을 제거한 조명계를 제공하고, 이러한 조명계를 채용하여 화질이 개선된 프로젝션 시스템을 제공한다.
Abstract:
An illumination system designed to remove laser speckle and a projection system including the same. The illumination system includes a laser light source having at least one laser, a diffractive optical element to divide a laser beam emitted from the laser light source into a plurality of sub-beams and to periodically move in such a way as to temporally average the speckle of the laser beam, and an optical fiber bundle including a plurality of fibers with the same length to divide the sub-beams into smaller sub-beams. The illumination system divides the laser beam emitted from the laser light source into sub-beams and temporally or spatially averages the sub-beams, thereby effectively reducing or removing laser speckle. The projection system employing the illumination system can provide improved image quality.
Abstract:
레이저 반점을 제거한 조명계 및 이를 채용한 프로젝션 TV가 개시되어 있다. 이 개시된 조명계는, 복수의 레이저 빔이 서로 다른 광축을 가지고 출사되는 레이저 광원 유닛; 상기 레이저 빔은 복수의 빔렛으로 구성되고, 상기 각각의 빔렛이 중첩적으로 집속되도록 하여 레이저 빔을 공간적으로 평균화시킴으로써 반점을 제거시키고, 레이저 빔의 단면을 정형해 주는 회절광학소자;를 포함하는 것을 특징으로 한다. 상기 구성에 의해 레이저 빔이 갖는 반점을 크게 감소시키거나 또는 제거할 수 있고, 이러한 조명계를 채용하여 화질이 개선된 프로젝션 TV를 제공할 수 있으며, 프로젝션 TV를 소형화 및 슬림화할 수 있다.