Search Results - zhihan+hong

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Optical Materials for Printing Glass Optics
This technology uses a liquid, solvent-free, silica precursor, and two-photon 3D printing process for high-precision glass micro-optics. Background: Inorganic glasses are widely used in industry due to their excellent optical, chemical, and thermal properties. Conventional grinding and polishing methods are the current standard for fabricating spherical,...
Published: 7/1/2021   |   Inventor(s): Rongguang Liang, Douglas Loy, Piaoran Ye, Zhihan Hong
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Category(s): Technology Classifications > Imaging & Optics
Photo-Curable Liquid Acrylate and Methacrylate Modified Silsesquioxane Oligomers with Built In Radical Initiators for Additive Manufacturing
This invention is a new photochemically curable resin with photo initiators for radical curing. This invention allows for faster curing rates using high and controlled concentrations of initiators. The invention also improves upon currently available resins, as this invention reduces the chances of resin chemical leaching and solves plasticization issues....
Published: 4/13/2021   |   Inventor(s): Douglas Loy, Rongguang Liang, Alyssa Ellsworth, Zhihan Hong
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Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials, Technology Classifications > Materials > Polymers
Thermally Curable Silsesquioxanes for Direct Write, Laser Inscription of Optics or 3D Printing
This invention is a thermally curable silsesquioxane based resin used for direct write creation of optics and 3D additive manufacturing. The resin is cured through the inclusion of a ketone and tertiary amine that react with the light from a laser. This leads to crosslinking which aids the gelation and vitrification before the viscous liquid can spread. Background: Direct...
Published: 10/26/2018   |   Inventor(s): Douglas Loy, Rongguang Liang, Zhihan Hong, Alyssa Ellsworth
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Category(s): Technology Classifications > Engineering & Physical Sciences, Technology Classifications > Materials, Technology Classifications > Engineering & Physical Sciences > Industrial & Manufacturing, Technology Classifications > Materials > Polymers
3D Printing Contact Lens
This invention utilizes a pulsed laser to locally cure optical materials used in fabricating freeform optics, specifically contact lenses. Background: Producing contact lenses is an expensive and time consuming process. However, the need and popularity for contact lenses is rising every year. This technology seeks to alleviate the costs of manufacturing...
Published: 3/18/2018   |   Inventor(s): Rongguang Liang, Zhihan Hong
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Category(s): Technology Classifications > Imaging & Optics > Ophthalmology
3D Printing Freeform Optics
Researchers at the University of Arizona have developed a novel apparatus and method for additive 3D printing of visible wavelength optics. The materials used have a low refractive index, and the laser parameters are tailored to deliver high figure and surface quality, making the printer suitable for freeform optics and rapid prototyping of complex...
Published: 2/4/2017   |   Inventor(s): Rongguang Liang, Zhihan Hong
Keywords(s):  
Category(s): Technology Classifications > Imaging & Optics, Technology Classifications > Imaging & Optics > Materials & Fabrication > Optical, EO & MO, Technology Classifications > Imaging & Optics > Optical Fab / Metrology