高出力LEDを用いたカラーホログラム照明装置の開発

概要

論文の詳細を見る
A halogen lamp is a popular light source for the reconstruction of holograms and has the merits of a wide-range spectrum covering the whole visible region, which makes it easy to obtain the image of the hologram. However, there are several problems of lighting systems using the halogen lamp. The reconstructed image of a blue hologram has a low intensity compared with that of a red one. Light-emitting diodes (LEDs) have rapidly become popular since the appearance of the blue LED. Three-color (R, G, B) LEDs are utilized for image display systems because of the development of multicolor LEDs. White LEDs have become used commercially, in which fluorescent materials are excited with blue or UV light sources. White LEDs are prevailing in general lighting applications. As a result, LEDs are replacing conventional incandescent lighting and are even used in automobile headlights. The aim of this research is to evaluate the feasibility of applying LEDs for the reconstruction of hologram images by comparing the efficiency of different light sources including a halogen lamp and LEDs. The characterization was performed by illuminating red, green and blue test holograms using a halogen lamp and various colored LEDs. We also aim to design and fabricate a high-efficiency lighting system for holograms using white LEDs.
東海大学の論文