A Step Forward Towards Smart White Lighting: Combination of Glass Phosphor and Blue LEDs

2019 ◽  
Vol 25 (9) ◽  
pp. 237-246 ◽  
Author(s):  
Luis Andrade ◽  
Sandro Lima ◽  
Andressa Novatski ◽  
Alysson Steimacher ◽  
Antônio Neto ◽  
...  
Keyword(s):  
Glass Phosphor

A Study of Optical Properties of a Glass Composition of a ZnO-Bi2O3-P2O5 Glass/Phosphor Composite for a White LED

2015 ◽  
Vol 48 (6) ◽  
pp. 145-150
Author(s):  
Bong-Ki Ryu ◽  
Il-Gu Kim ◽  
Young-Seok Kim ◽  
Jong-Hwan Kim ◽  
Jae-Yeop Jung ◽  
...  
Keyword(s):  
Optical Properties ◽  
Glass Composition ◽  
White Led ◽  
Glass Phosphor

Development of New Glass Phosphor for Multimodal Artifact Metrics Applicable for Ceramics

2018 ◽  
Vol 940 ◽  
pp. 109-113
Author(s):  
Masaki Fujikawa ◽  
Mariko Hara ◽  
Shingo Fuchi
Keyword(s):  
Emission Intensity ◽  
Base Material ◽  
Optical Excitation ◽  
Observation Point ◽  
Phosphor Powder ◽  
Novel Approach ◽  
New Type ◽  
Glass Phosphor ◽  
Feature Information ◽  
Different Color

Multi-modal artifact metrics, an anti-counterfeiting technique, was created based on the concept of multi-modal biometrics and can improve the certainty of authenticity and difficulty of counterfeiting as it gives more than one characteristic information to the artifact. In order to give two optical feature information (hue and emission intensity) into the ceramic products, we develop a new type of glass phosphor. This is a novel approach, since up-conversion phosphors with different color hue and emission intensity at each observation point on the material by optical excitation have never been reported. By welding a small amount of phosphor powder onto the surface of the ceramics, the certainty of authenticity and difficulty of counterfeiting would be enhanced than an existing method we proposed. Based on our experiment, we found appropriate blending ratio of two types of rare earth oxides for making glass phosphor with above-mentioned emission characteristics. These characteristics could be seen in other glass phosphor created by different base material glass with same blending ratio.

scholarly journals Development of a New Laparoscopic Detection System for Gastric Cancer Using Near-Infrared Light-Emitting Clips with Glass Phosphor

Micromachines ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 81
Author(s):  
Shunko Inada ◽  
Hayao Nakanishi ◽  
Masahiro Oda ◽  
Kensaku Mori ◽  
Akihiro Ito ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Laparoscopic Surgery ◽  
Near Infrared ◽  
Detection System ◽  
Fluorescent Detection ◽  
Infrared Light ◽  
Excitation Light ◽  
Light Emitting ◽  
Nir Light ◽  
Glass Phosphor

Laparoscopic surgery is now a standard treatment for gastric cancer. Currently, the location of the gastric cancer is identified during laparoscopic surgery via the preoperative endoscopic injection of charcoal ink around the primary tumor; however, the wide spread of injected charcoal ink can make it difficult to accurately visualize the specific site of the tumor. To precisely identify the locations of gastric tumors, we developed a fluorescent detection system comprising clips with glass phosphor (Yb3+, Nd3+ doped to Bi2O3-B2O3-based glasses, size: 2 mm × 1 mm × 3 mm) fixed in the stomach and a laparoscopic fluorescent detection system for clip-derived near-infrared (NIR) light (976 nm). We conducted two ex vivo experiments to evaluate the performance of this fluorescent detection system in an extirpated pig stomach and a freshly resected human stomach and were able to successfully detect NIR fluorescence emitted from the clip in the stomach through the stomach wall by the irradiation of excitation light (λ: 808 nm). These results suggest that the proposed combined NIR light-emitting clip and laparoscopic fluorescent detection system could be very useful in clinical practice for accurately identifying the location of a primary gastric tumor during laparoscopic surgery.

Ultrawide-band near-infrared light source over 1 mW by Sm3+,Pr3+-codoped glass phosphor combined with LED

2014 ◽  
Vol 7 (7) ◽  
pp. 072601 ◽  
Author(s):  
Shingo Fuchi ◽  
Yusuke Shimizu ◽  
Keita Watanabe ◽  
Hiroki Uemura ◽  
Yoshikazu Takeda
Keyword(s):  
Light Source ◽  
Near Infrared ◽  
Infrared Light ◽  
Near Infrared Light ◽  
Glass Phosphor

scholarly journals Tunable white light emission from γ-irradiated Ag/Eu co-doped phosphate glass phosphor

2012 ◽  
Vol 2 (6) ◽  
pp. 765 ◽  
Author(s):  
Sijun Fan ◽  
Chunlei Yu ◽  
Dongbing He ◽  
Xin Wang ◽  
Lili Hu
Keyword(s):  
Phosphate Glass ◽  
White Light ◽  
Light Emission ◽  
White Light Emission ◽  
Glass Phosphor ◽  
Co Doped

Eu2+-activated blue-emitting glass phosphor derived from Eu3+ exchanged USY zeolites by thermal treatment in reducing atmosphere

2018 ◽  
Vol 44 (16) ◽  
pp. 19547-19553 ◽  
Author(s):  
Changda Gao ◽  
Hui Lin ◽  
Dawei Zhang ◽  
Ruijin Hong ◽  
Chunxian Tao ◽  
...  
Keyword(s):  
Thermal Treatment ◽  
Reducing Atmosphere ◽  
Glass Phosphor
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