In this work, a phosphor converter with small thickness and low concentration, based on a micro-angle tunable tilted filter (ATFPC), was proposed for hybrid-type laser lighting devices to solve the problem of silicone phosphor converters' carbonizing under high-energy density. Taking advantage of the filter and the scattering characteristics of microphosphors, two luminous areas are generated on the converter. Compared with conventional phosphor converters (CPCs), the lighting effects of ATFPCs are adjustable using tilt angles. When the tilt angle of the micro filter is 20°, the luminous flux of the ATPFCs is increased by 11.5% at the same concentration; the maximum temperature (MT) of ATFPCs is reduced by 22.8% under the same luminous flux and the same correlated color temperature (CCT) 6500 K. This new type of lighting device provides an alternative way to improve the luminous flux and heat dissipation of laser lighting.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537527 | PMC |
| http://dx.doi.org/10.3390/mi12101144 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A Second Near-Infrared Window-Responsive Metal-Organic-Framework-Based Photosensitizer for Tumor Immunotherapy via Synergistic Ferroptosis and STING Activation.
J Am Chem Soc
January 2025
School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
Photodynamic therapy (PDT) holds promise as a cancer treatment modality due to its potential for enhanced therapy precision and safety. To enhance deep tissue penetration and minimize tissue adsorption and phototoxicity, developing photosensitizers activated by second near-infrared window (NIR-II) light shows significant potential. However, the efficacy of PDT is often impeded by tumor microenvironment hypoxia, primarily caused by irregular tumor vasculature.
View Article and Find Full Text PDFClinical efficacy of photobiomodulation therapy in dental implant stability and crestal bone loss in implants placed in healed sites: a systematic review and meta-analysis of randomized clinical trials.
Lasers Med Sci
January 2025
Manav Rachna Dental College, Manav Rachna International Institute of Research and Studies, Aravali Hills, India.
This systematic review and meta-analysis aimed to compare the effect of photobiomodulation (PBM) therapy on implant stability and crestal bone loss placed in healed sites. The present systematic review and meta-analysis were conducted according to PRISMA (The Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Two investigators carried out the electronic search of Pubmed, Google Scholar, and Ebscohost for published literature from 2012 till March 2024.
View Article and Find Full Text PDFComparison of low-level laser therapy versus neuromuscular electrical nerve stimulation at hemiplegic shoulder pain and upper extremity functions.
Lasers Med Sci
January 2025
Department of Physical Medicine and Rehabilitation, Hitit University Erol Olçok Education and Research Hospital, Çorum, Turkey.
This study aimed to assess and compare the effectiveness of adding low-level laser therapy (LLLT) and neuromuscular electrical nerve stimulation (NMES) to conventional physical therapy exercises, for stroke patients with hemiplegic shoulder pain (HSP). Seventy-five stroke patients with shoulder pain were included in this prospective randomized controlled study. Participants were divided into three groups.
View Article and Find Full Text PDFEfficacy of the 595 nm pulsed dye laser in the treatment of hemangiomas in Vietnamese patients.
Lasers Med Sci
January 2025
Aalborg University Hospital, Aalborg, Denmark.
Hemangiomas are common benign vascular tumors that often present in childhood. The 595 nm pulsed dye laser (PDL) is now being widely used to treat vascular skin lesions. This case series was performed to review the therapeutic efficacy and safety of PDL in the treatment of hemangiomas among Vietnamese patients.
View Article and Find Full Text PDFAgGaS and Derivatives: Design, Synthesis, and Optical Properties.
Nanomaterials (Basel)
January 2025
College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
Silver gallium sulfide (AgGaS) is a ternary ABX-type semiconductor featuring a direct bandgap and high chemical stability. Structurally resembling diamond, AgGaS has gained considerable attention as a highly promising material for nonlinear optical applications such as second harmonic generation and optical parametric oscillation. In attempts to expand the research scope, on the one hand, AgGaS-derived bulk materials with similar diamond-like configurations have been investigated for the enhancement of nonlinear optics performance, especially the improvement of laser-induced damage thresholds and/or nonlinear coefficients; on the other hand, nanoscale AgGaS and its derivatives have been synthesized with sizes as low as the exciton Bohr radius for the realization of potential applications in the fields of optoelectronics and lighting.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!