Title:
SOLID STATE BROAD BAND NEAR-INFRARED LIGHT SOURCE
Document Type and Number:
WIPO Patent Application WO/2016/051318
Kind Code:
A3
Abstract:
A light source for near-infrared transmission and reflection spectroscopy can be constructed from a combination of a high power blue or blue-green light emitting diode (LED) and a phosphor element based on an inorganic material. The phosphor element absorbs the LED light and, in response to the LED excitation, emits luminescence that continuously covers the 700 – 1050 nm range. One possible material that can be used for such a near-infrared emitting phosphor element is a single crystal rod of Ti+3 doped Sapphire. An alternative near-infrared emitting phosphor material is a disk or rectangular shaped composite of Ti+3 doped Sapphire powder embedded in a clear optical epoxy or silicone encapsulant. Such a combination of a blue LED for excitation of a phosphor element that emits in a broad wavelength band has been widely used in white LEDs where the emission is in the 400-700 nm range.
Inventors:
MICHEELS RONALD H (US)
Application Number:
PCT/IB2015/057368
Publication Date:
August 25, 2016
Filing Date:
September 24, 2015
Export Citation:
Assignee:
INNOVATIVE SCIENCE TOOLS INC (US)
International Classes:
G01J3/10
Foreign References:
| US20130265568A1 | 2013-10-10 | |||
| US20050161694A1 | 2005-07-28 | |||
| US20020185603A1 | 2002-12-12 | |||
| US20120099102A1 | 2012-04-26 | |||
| US6850013B1 | 2005-02-01 |
Other References:
FAULKNER ET AL.: "Lanthanide Complexes for Luminescence Imaging Applications.", APPLIED SPECTROSCOPY REVIEWS, 2005, pages 9 - 10, XP055369938, Retrieved from the Internet
PUNKE ET AL.: "High-repetition-rate white-light pump probe spectroscopy with a tapered fiber.", OPTICS LETTERS, vol. 31, no. 8, 15 April 2006 (2006-04-15), pages 1157, XP001242426, Retrieved from the Internet doi:10.1364/OL.31.001157
PUNKE ET AL.: "High-repetition-rate white-light pump probe spectroscopy with a tapered fiber.", OPTICS LETTERS, vol. 31, no. 8, 15 April 2006 (2006-04-15), pages 1157, XP001242426, Retrieved from the Internet
Attorney, Agent or Firm:
CLOCK TOWER LAW GROUP et al. (Suite 255Maynard, Massachusetts, US)
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