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Search Results - alaa+hamdoh
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Broadband Achromatic Waveplate and Polarization Camera for Visible, SWIR, MWIR and LWIR
This invention uses broadband achromatic waveplates for a wide bandwidth polarimeter and polarization camera to covers visible, short-wave infrared (SWIR), mid-wave infrared (MWIR), and long-wave infrared (LWIR) regions. The design uses low loss optical materials to operate over a large bandwidth range for higher light collection efficiency, which leads...
Published: 3/3/2026
|
Inventor(s):
Stanley Pau
,
Yufei Gao
,
Alaa Hamdoh
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Lens & System Design
,
Technology Classifications > Imaging & Optics > Medical Imaging
,
Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry
,
Technology Classifications > Imaging & Optics > Optical Fab / Metrology
,
Technology Classifications > Imaging & Optics > Sensors and Detection > Remote Sensing
Application of Polarization Imaging in Identification and Metrology of Gemstone
This invention presents a method and instrumentation for gemstone identification and metrology using polarization imaging. It is a simple and cost-effective metrology system that distinguishes gemstones of various materials and cuts. The invention uses a combination of filters, a polarization camera, and other elements to form an image of the gemstone,...
Published: 7/23/2025
|
Inventor(s):
Stanley Pau
,
Alaa Hamdoh
,
Linan Jiang
,
Yufei Gao
Keywords(s):
Category(s):
Technology Classifications > Imaging & Optics > Sensors and Detection > Inspection
,
Technology Classifications > Imaging & Optics > Microscopy, Spectroscopy, Polarimetry
,
Technology Classifications > Imaging & Optics > Optical Fab / Metrology