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Search Results - daewook+kim
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Apparatus and Method for High Solar Concentration using a Field of Twisting Heliostats
This technology is a twisting heliostat that automatically adjusts its reflector’s shape throughout the day to adapt to changes in the sun’s relative position to the heliostat field. It uses closed loop tracking to ensure that that light reflected from each twisted heliostat is centered on a target point. This design allows for higher concentration...
Published: 9/3/2024
|
Inventor(s):
James Angel
,
Nicholas Didato
,
Daewook Kim
,
Ryker Eads
Keywords(s):
Category(s):
Technology Classifications > Energy, Cleantech & Environmental > Renewable Energy > Solar/Photovoltaic
,
Technology Classifications > Imaging & Optics > Lens & System Design
3D Printing Mirror (Radial Lithography Surface Figuring)
The technology enables less expensive fabrication of mirrors without compromising quality. This is done with a 3D printing technique that uses lasers and a rotating platform to craft the desired shape of the mirror. The new method can print mirrors that can be used in large-aperture telescope applications such as space telescopes. It can also fabricate...
Published: 8/6/2024
|
Inventor(s):
Heejoo Choi
,
Daewook Kim
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Optical Fab / Metrology
,
Technology Classifications > Imaging & Optics > Materials & Fabrication
,
Technology Classifications > Imaging & Optics > Lens & System Design
Meta/Flat Optics Deflectometry
This technology is a unique solution for meta/flat optics metrology. It utilizes a direct matching interface between the flat/meta optics and the modulated pattern display. This allows for a much wider dynamic range than current technologies. This also enables higher measurement accuracy than current solutions like interferometry and traditional deflectometry...
Published: 8/5/2024
|
Inventor(s):
Daewook Kim
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Optical Fab / Metrology
Heliostat Deflectometry
This invention is a novel heliostat metrology method to analyze and assess heliostat quality. This method is designed for use with large format meter-scale heliostat mirrors. Through the use of a unique modulation-free pattern approach, this metrology method can be used in outdoor environments. In the context of heliostats, deflectometry is employed...
Published: 8/5/2024
|
Inventor(s):
Daewook Kim
,
James Angel
,
Yiyang Huang
Keywords(s):
Category(s):
Technology Classifications > Energy, Cleantech & Environmental > Renewable Energy > Solar/Photovoltaic
,
Technology Classifications > Energy, Cleantech & Environmental > Renewable Energy
,
Technology Classifications > Imaging & Optics > Lens & System Design
,
Technology Classifications > Imaging & Optics > Materials & Fabrication
Versatile Space Telescope for Quantum Key Distribution
The Versatile CubeSat Telescope (VCT) is a CubeSat-enabled telescope design with an increased aperture and decreased divergence over state-of-the-art systems. It also provides thermal stability, which enhances the signal-to-noise ratio, reduces the error rate, and improves performance. Finally, it can preserve the polarization of received signals to...
Published: 6/20/2024
|
Inventor(s):
Ewan Douglas
,
Daewook Kim
Keywords(s):
Category(s):
Technology Classifications > Engineering & Physical Sciences > Communications & Networking
,
Technology Classifications > Imaging & Optics > Telecommunications
Trapezoidal Shim for Segmented Optics Assembly
Researchers at the University of Arizona have designed a paradigm-shifting space telescope technology. The technology produces ultra-lightweight, transmissive lenses that are fabricated economically in segments. The novel aspects of the technology facilitate quick assembly with very high precision alignment. Background: Improvements in space telescope...
Published: 7/10/2023
|
Inventor(s):
Daewook Kim
,
Rongguang Liang
,
Oliver Spires
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Lens & System Design
Kinematically Engaged Yoke System
This technology is a new alignment, co-phasing and assembly approach called KEYS (Kinematically Engaged Yoke System) that uses intrinsic surface profiles of multiple order diffraction (MOD) optical segments. The technology is composed of a harness that has negatively shaped semi-kinematic “keys” which fits the MOD-side-step-like mechanical...
Published: 7/10/2023
|
Inventor(s):
Daewook Kim
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Lens & System Design
Pseudo-Nulling Mach-Zehnder Metrology
This technology is a novel Mach-Zehnder interferometer that uses a a pseudo-nulling configuration with a converging beam, to test two optical components against each other, rather that testing one optical component against a reference component Background: As the capability of optical manufacturing has grown such that it is easy to mass produce...
Published: 4/3/2023
|
Inventor(s):
Daewook Kim
,
Heejoo Choi
,
Trenton Brendel
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Optical Fab / Metrology
Polishing Interface Coating Technology
This invention is a method of adhering pitch to a polishing lap that utilizes a non-Newtonian fluid. This advancement enhances the smoothing capabilities for a previously developed polishing tool or similar tools that use a non-Newtonian fluid. Background: Manufacturing of lenses requires expensive machinery including high precision grinding and...
Published: 4/3/2023
|
Inventor(s):
Daewook Kim
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Materials & Fabrication
Virtual Deflectometry Enclosure Screen
This invention is a system designed to perform optical quality metrology on freeform or convex optics. This system provides a full aperture surface reconstruction sag map of freeform surfaces. The method relies on the creation of virtual source enclosure that surrounds the unit under testing (UUT) and produces a virtual 2 Pi-steradian measurement range....
Published: 4/3/2023
|
Inventor(s):
Daewook Kim
,
Logan Graves
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics
,
Technology Classifications > Imaging & Optics > Optical Fab / Metrology
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