Elastomeric light valves


  • This work was supported in part by the National Science Foundation (Grant PHY 9312572). ONR and ARPA. This work made use of MRSEC Shared Facilities supported by the National Science Foundation under Grant DMR-9400396.


Two types of elastomeric light valves, their fabrication, performance, and application, are described. Both are thin blocks of poly(dimethylsiloxane), PDMS, with relief structures on their surfaces, either an array of square pyramids or an array of retroreflective corner cubes (see Figure). Use of the valves in a display device is demonstrated, in which the transparency can be controlled by mechanical compression.

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