| 摘要 |
An illumination system provides a light output distribution that is ideally suited for home and office applications. The illuminations system (10) generally comprises a solid waveguide (30) and a light directing structure located on a side opposite of the waveguide's light output side (34) for controlling the light output distribution from the illumination system (10). The light directing structure may be unitarily formed with the waveguide (30 ) or it may be secured thereto by an interface which provides approximately 10 0 % contact between the waveguide (30) and light directing structures (40). Th e light directing structure (40) includes an array (42) of light directing features configured as generally lenticular prisms (48) that extend in a direction substantially perpendicular (i.e., not parallel) to the average direction at which light rays enter and propagate through the waveguide (30) . Each light directing feature defines an included angle that controls the distribution of light output from the illumination system (10) in a first direction. The interface, when provided, controls the distribution of light output from the illumination system (10) in a second direction that is generally orthogonal with respect to the first direction.
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