Catadioptric system – Knowledge and References

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Telescopes

Published in Daniel Malacara-Hernández, Brian J. Thompson, Fundamentals and Basic Optical Instruments, 2017

All-reflective optical systems are known as catoptric. Mirror telescopes may be divided into one-, two-, and three-mirror systems. Flat-beam turning mirrors are not considered in the mirror count, as they have no power. Many well-corrected reflective systems employ a transmissive lens or a corrector plate for additional correction. When an optical system incorporates reflective as well as refractive components, it is known as a catadioptric system.

Online droplet monitoring in inkjet 3D printing using catadioptric stereo system

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Journal Information

Published in IISE Transactions, 2019

Tianjiao Wang, Chi Zhou, Wenyao Xu

Compared with a single camera-based detection system, our dedicated catadioptric stereo system can provide accurate target location information in all three dimensions of the target area. With the help of the magnification lens, a high detection accuracy of the catadioptric system can be achieved. By focusing on a small detection range, more detailed information can be captured by the camera. In this section, the accuracy of the proposed catadioptric stereo system is evaluated.