| 摘要 |
One aspect of the invention relates to an optical device that includes an elongate optical element, first and second frame member, and a plurality of contact supports. The optical element includes total internal reflection properties along a length of the optical element. The first and second frame members are positioned at opposing ends of the optical element. The plurality of contact supports are mounted between the optical element and the first and second support frames. The contact supports each provide a point contact or a line contact with the optical element to hold the optical element in the XY plane.
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