本論文主要是探討一種複合室內照明燈具之光學系統設計，將發光二極體之點光源及冷陰極螢光燈管之線光源，經由導光板及其他搭配的光學元件，可產生均勻的面光源，並且能夠利用紅色、綠色、藍色或是黃色發光二極體來調整燈具整體的色溫或是色彩。 利用光學模擬軟體建立系統模型，系統模型主要有導光元件、光源以及光源反射罩，而為了讓使用效率提升，在導光元件上可再加上反射片或是鍍上反射膜來將漏出導光元件的光線再次導回導光元件，光源所發出的光利用全反射在導光元件中傳遞，而在導光元件上建立微結構使得光線碰到微結構後，改變行進方向進而從導光元件上發出。 首先設計導光元件上微結構的大小以及分布情況來控制光線出射的均勻度，先以冷陰極螢光燈管做設計，之後再加入發光二極體做搭配，最後可以使導光元件出光均勻度達到85%以上；之後利用改變分佈在兩側的發光二極體排列方式或是改變使用的發光二極體類型，藉此來調整光學系統本身的演色性，經過調整後可使平均演色指數達提升至93，此外利用光源不同的比重調整整體系統的色彩及色溫，色溫可調整範圍可從6500K至2700K左右，並討論其色彩均勻度及演色性。 最後我們設計出一種多光源的照明燈具，可單獨利用一種光源作為照明，也可同時利用兩種光源來調整燈具的整體色溫變化，或是根據使用需求提升燈具的演色性，而所使用不同色彩的光源及光源排列方式的不同，可調整的色溫範圍及演色性也會因此而有所不同。 The main objective of this thesis is to discuss the optical system for the interior lighting with different light sources. By using the designed light guide element and other optical elements turn the point light source like LED or the linear light source like CCFL into uniformity surface light source. Also we can adjust the color or the color temperature of the lamp by using the red, green, blue or yellow LEDs. In order to establish the whole system model, we use optical simulation software. The system model includes light guide element, light source and reflector. In order to promote the efficiency of the lamp, we could use the reflection film or the reflection coating to turn the light which leak out from the light guide element back. Light which emitting from the light source transmit in the light guide element by total internal reflection. Until light touch the micro-structure which is created on the top of light guide element, it could change the moving direction and emit from the light guide element. The first step is designing the size and the density of the micro-structure which is created on the light guide element to control the uniformity. We first use the CCFLs to design the whole model, and then add LEDs into the model. Finally the uniformity of the system could reach 85%. And we could adjust the color rendering property of the system by changing the position of LEDs or the different types of LED. After the adjustment, the average color rendering index of the system could reach 93. Adjusting color and color temperature of the whole system by changing the ratio of each light source and the range of color temperature could be adjusted form 6500K to 2700K, and then we could discuss the color uniformity and the color rendering property of the system. Finally, we design a lighting lamp with multiple light sources. We could use single light source as lighting. Also we could use both two light sources to change the color temperature of the lamp or adjust the color rendering property of the lamp. According to using different light sources with different colors or different arrangement of light sources, the color temperature which could be adjusted and the color rendering property would be different.
