OPTICAL ENGINE OF AN LCD PROJECTOR FOR PRECISELY ADJUSTING PROJECTED LIGHT BY ADJUSTING THE LIGHT PROJECTED INTO AN LCD PANEL OF A BLUE SIDE UPWARD, DOWNWARD, LEFTWARD AND RIGHTWARD

摘要

PURPOSE: An optical engine of an LCD(Liquid Crystal Display) projector is provided to precisely adjust an optical direction projected into an LCD panel leftward, rightward, upward and downward by installing a projected beam controller. CONSTITUTION: An optical engine contains a thermal absorption/ultraviolet, infrared isolation mirror, a first and a second lighting optical portions, a first to a fifth mirrors, a lighting lens and a projected light controller. The thermal absorption/ultraviolet, infrared isolation mirror penetrates pure visible ray from a light source portion. The first and the second lighting optical portions penetrate the penetrated intensity of the visible ray from the thermal absorption/ultraviolet, infrared isolation mirror by maintaining regularly. The first to the fifth mirrors projects a red, a green and a blue to each LCD panels by partially reflecting and partially projecting the red, the green and the blue among the penetrated visible rays from the first and the second lighting optical portions or by reflecting all. The lighting lens penetrates the blue reflected from one mirror to a general direction by concentrating. The projected light controller stores the lighting lens and moves upward, downward, leftward and rightward for adjusting the penetrating direction of the blue through the lighting lens. The projected light controller contains a first plate(121) to store the lighting lens, a second plate(122) combined with the first plate for vertically move the first plate and a third plate(123) combined with the second plate for horizontally moving the second plate.