Repeatable Method for Inexpensive Manufacturing of Smooth Surface Gratings

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2019-BRAV-68548
Optical diffraction gratings are used for light scattering. Current commercial diffraction gratings are expensive, difficult to manufacture, and utilize surface treatment of the lenses which can be easily damaged. Researchers at Purdue University have developed an inexpensive method for manufacturing smooth surface gratings via additive manufacturing, allowing for manufacturing of complicated geometries. This technology is also impervious to mishandling of the lenses since the diffraction pattern is internal to the structure of the lenses. Furthermore, this technology is an inexpensive method for producing light scattering lenses using a single process without complicated machining, making it very repeatable; experiments have also shown that a reflective index of 1.50 can be achieved.

Advantages:
-Repeatable
-Inexpensive

Potential Applications:
-Optical Diffraction Gratings
Jan 13, 2021
Utility Patent
United States
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Jan 14, 2020
Provisional-Patent
United States
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Purdue Office of Technology Commercialization
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