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| LIU RESEARCH LABORATORIES, LLC is a research and
development company in the fields of pyrometry, gemology, color science and
optics with 5 US patents and one patent in pending.
We provide the most advanced pyrometric and gemological
instruments and state-of-the-art technology obtained from our inventions and innovations
by research and
development.
We provide the best services in pyrometry, gemology, and
optics by knowledge, experience and instrumentation.
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Alexandrite Effect Spectropyrometer
US Patents 7,004,624 and 7,052,177 |

Gemological Spectrometer
US Patents 7,652,755, 7,388,656 and one in pending |

Computer Color Grading System US Patent
7,388,656 |

Standard CIE
Daylight Simulators US patent 7,378,784 |

Optimal Design of Colored Glass Filters
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Color Change Cubic
Zirconia (CZ)
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