| 摘要 |
An illumination system (10) having a hollow waveguide (50) including first (70) and second (80) light directing arrays (LDA), each having a plurality of generally lenticular prisms (74, 84) defined thereon and arranged generally orthogonally with respect to each other. Light rays from a light source (20) enter the waveguide (50) through a light input side (58) and emerge from the waveguide (50) through a light output side (56) at a predetermined flux and angular distribution. The light output flux and angular distribution can each be independently controlled in accordance with the present invention by the LDA s (70, 80) to provide an illumination system (10) that can be configured for various light output distribution and intensity requirements.
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