Results 1 to 10 of about 1,367,957 (308)

A Luminous Efficiency-Enhanced Laser Lighting Device with a Micro-Angle Tunable Filter to Recycle Unconverted Blue Laser Rays [PDF]

open access: yesMicromachines, 2021
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 ...
Xinrui Ding   +6 more
doaj   +2 more sources

Transcriptomic Analysis of Rice (Jijing129) Reveals Growth and Gene Expression Responses to Different Red-Blue Laser Light Treatments [PDF]

open access: yesPlants
Artificial supplemental lighting represents a crucial agricultural technique for enhancing plant growth and development, with researchers continuously investigating the effectiveness of various light sources in horticultural applications.
Xuemei Liang   +10 more
doaj   +2 more sources

Second-level fast sintering enables high-brightness light source for visible light communication [PDF]

open access: yesNature Communications
Laser-driven light sources are critically important for lighting, display, and communication systems. However, the traditional phosphor ceramics used in these light sources suffer from low light conversion efficiency, low color rendering index and ...
Guojuan Wang   +7 more
doaj   +2 more sources

Composition and luminescence properties of highly robust green-emitting LuAG:Ce/Al2O3 composite phosphor ceramics for high-power solid-state lighting

open access: yesJournal of Advanced Ceramics, 2023
The major advantage of laser lighting over white light-emitting-diode is the possibility to achieve ultra-high luminance. However, phosphors usually suffer laser-induced luminescence saturation, which limits the peak luminance of laser lighting devices ...
Ziqiu Cheng   +10 more
doaj   +1 more source

Novel Red-Emitting Eu3+-Doped Y2(WxMo1−xO4)3 Phosphor with High Conversion Efficiency for Lighting and Display Applications

open access: yesMolecules, 2023
In this study, a series of trivalent europium-doped tungstate and molybdate samples were synthesized using an improved sol-gel and high-temperature solid-state reaction method.
Fan Chen   +2 more
doaj   +1 more source

Achievement of Possibly Maximum Photosynthetic Performances for Multi-Primary Laser Lighting for Indoor Farming

open access: yesIEEE Photonics Journal, 2023
The artificial lighting based on multiple-primary light-emitting diodes (LEDs) or multiple-primary laser diodes (LDs) makes the diversity of colors by freely and simply adjusting the emission spectra of rays from these semiconductor devices.
Bingui Lv   +11 more
doaj   +1 more source

Laser and LED Hybrid Plant Lighting System Design Based on the Particle Swarm Algorithm

open access: yesApplied Sciences, 2020
This paper developed light-emitting diode (LED) and laser models suitable for the design of uniform surface irradiation systems that use computer algorithms.
Yongping Huang, Jianshe Ma
doaj   +1 more source

Cyan-green-emitting Ca3Sc2Si3O12:Ce3+ transparent ceramics: A promising color converter for high-brightness laser lighting

open access: yesJournal of Advanced Ceramics, 2023
Transparent phosphor ceramics have received increasing attention for high-brightness laser lighting, but commercially available phosphor ceramics are currently mainly limited to yellow YAG:Ce and green LuAG:Ce garnets, leaving a "cyan cavity" which is an
Huajun Wu   +5 more
doaj   +1 more source

A brief analysis of the development process and future trend of automobile headlights [PDF]

open access: yesSHS Web of Conferences, 2023
As an important component of automobile lighting, headlights have gone through the development process from acetylene headlights in the early days of birth to a wide variety of new headlights today.
Guo YuXuan, Wang TingTing, Zheng Xian
doaj   +1 more source

A Study of High-Efficiency Laser Headlight Design Using Gradient-Index Lens and Liquid Lens

open access: yesApplied Sciences, 2020
In the field of vehicle lighting, due to the diode laser, its small size and high energy conversion efficiency, it can be effectively used as the headlight source of high beam.
Yi-Chin Fang   +6 more
doaj   +1 more source

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