LED illumination optical systems which have a condensation improvement function

摘要

PURPOSE: An LED illumination optical system is provided to improve durability and implement high brightness by condensing light from a plurality of LEDs. CONSTITUTION: An LED condensing lens(320) condenses RGB(Red Green Blue) light from an LED. A color synthesis optical unit(330) is formed on one side of an LED condensing lens and reflects or transmit the condensed RGB light. A fly eye lens(340) is formed near the color synthesis optical unit and uniformizes the brightness of the RGB light. A condensing lens(350) is formed near the fly eye lens and condenses the RGB light by decreasing the angle of the RGB light. A regular light generating unit(360) is formed on one side of the condensing lens and uniformizes the condensed RGB light.