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Additive manufacturing of double-sided centimeter-scale optics
Optics Express
|April 4, 2024
Summary
Rapid manufacturing of double-sided optics is achieved using additive manufacturing (AM). Two methods, support material and flipping, produce centimeter-scale optics with high surface quality for illumination applications without post-processing.
Area of Science:
- Optics and Photonics
- Materials Science
- Manufacturing Engineering
Background:
- High-quality optical components are crucial for illumination systems.
- Traditional manufacturing methods for double-sided optics can be complex and time-consuming.
- Additive manufacturing offers potential for rapid, high-precision component fabrication.
Purpose of the Study:
- To demonstrate rapid, post-processing-free manufacturing of double-sided, centimeter-scale optics.
- To present and compare two additive manufacturing approaches for optical component production.
- To evaluate the surface quality and form accuracy of the manufactured optics.
Main Methods:
- Additive manufacturing (AM) utilizing an optically transparent material.
- Employing a water-soluble support material for single-process fabrication (support method).
- Utilizing a single optically transparent material with mid-process flipping (flipping method).
Main Results:
- Both support and flipping methods yielded centimeter-scale optics without post-processing.
- Achieved surface roughness (Rq) of 11.48 ±3.32 nm.
- Attained form accuracy of ±10 μm, suitable for illumination optics.
Conclusions:
- Additive manufacturing provides a rapid route to producing illumination-quality double-sided optics.
- The support method offers advantages in alignment and potential for future complex designs.
- The flipping method simplifies material requirements, while both methods achieve necessary optical surface quality.
