A5023928573- Advanced Surface Polishing Techniques
- Optical Systems and Laser Technology
- Adaptive optics and wavefront sensing
- Advanced optical system design
- Mechatronics Education and Applications
- Surface Modification and Superhydrophobicity
- Electrohydrodynamics and Fluid Dynamics
- Advanced machining processes and optimization
- Astronomy and Astrophysical Research
- Advanced Measurement and Metrology Techniques
- CCD and CMOS Imaging Sensors
- Diamond and Carbon-based Materials Research
- Control Systems in Engineering
- Astronomical Observations and Instrumentation
- Industrial Automation and Control Systems
- Adhesion, Friction, and Surface Interactions
Sogang University
2024
Universidad Nacional Autónoma de México
1997-2013
We have designed and installed a new set of actuators for the suspension primary mirror 2.1-m telescope at San Pedro Mártir. This active optics system has allowed us to correct low-order aberrations identified by several wave-front analysis techniques.
Deterministic hydrodynamic polishing with HyDRa requires a precise control of parameters, such as propelling air pressure, slurry density, flux and tool height. We describe the system prove how precise, deterministic can be achieved in terms these parameters. The results an 84 cm hyperbolic mirror are presented to illustrate stability parameters is important obtain high-quality surfaces.
A novel hydrodynamic radial polishing tool (HyDRa) is presented. It performs corrective lapping and fine of diverse materials by means a low-cost abrasive flux suspension system that avoids contact the with working surface. With this it possible to polish aspheres free-form optics on sizes. The functioning principle based generation grazing, high-velocity, low-pressure, rotational, variable density, geometry. has advantage avoiding fallen edges during process as well reducing wear out...
In this paper, an optical design is presented for anastigmatic telescope with back focal length corrected exact ray tracing to eliminate spherical, coma, and astigmatism aberrations. The formed of three conical mirrors, two them polished on the same substratum. divided into stages: we began obtaining Gaussian parameters in a first-order solution; posteriorly, were obtained analytically mirrors' asphericity third-order design. final stage consists implementation Fermat's principle, Abbe sine...
New results using hydrodynamic radial polishing techniques on assorted materials, HyDRa are presented. This tool performs corrective lapping and fine by means of a low-cost, foamy abrasive flux. The functioning principle is based the generation grazing, high-velocity, low-pressure, rotational, variable density, flux with geometry. It currently possible to polish aspheres free-form optics diverse materials sizes. particularly useful for thin substrates such as membranes semiconductors since...