Results 11 to 20 of about 1,367,957 (308)

Laser spot associated high-saturation phosphor-in-glass film for transmissive and reflective high-brightness laser lighting

open access: yesJournal of Advanced Ceramics, 2023
Phosphor-in-glass (PiG) film is a promising luminescent material in high-brightness laser lighting for its advantages of high efficiency, outstanding color quality, and low-cost preparation, which must bear high laser power (LP) and laser power density ...
Zikang Yu   +5 more
doaj   +1 more source

Possible explanations for different surface quality in laser cutting with 1 micron and 10 microns beams [PDF]

open access: yes, 2012
In laser cutting of thick steel sheets, quality difference is observed between cut surfaces obtained with 1 micron and 10 micron laser beams. This paper investigates physical mechanisms for this interesting and important problem of the wavelength ...
Remy Fabbro   +3 more
core   +1 more source

Let there be laser light [PDF]

open access: yesNature Communications, 2018
Today, on the 16th May, we celebrate the first International Day of Light, which UNESCO proclaimed late last year. We celebrate the central role light and light-based technologies play in our lives and consider how they can be beneficial to humanity through sustainable lighting, renewable energy and improved health care.
openaire   +3 more sources

Energy efficient facade lighting : highlighting facade structure [PDF]

open access: yes, 2014
The project set out to proof that a conventional optical fibre lighting system for highlighting the structure of a façade can be operated more energy-efficiently through the substitution of the projector using a metal halide reflector lamp by a laser ...
Hordijk, Truus,   +27 more
core   +2 more sources

Mapping Lightscapes: Spatial Patterning of Artificial Lighting in an Urban Landscape [PDF]

open access: yes, 2013
Artificial lighting is strongly associated with urbanisation and is increasing in its extent, brightness and spectral range. Changes in urban lighting have both positive and negative effects on city performance, yet little is known about how its ...
Davies, Gemma   +5 more
core   +5 more sources

Patterned phosphor-in-glass films with efficient thermal management for high-power laser projection displays

open access: yesJournal of Advanced Ceramics, 2023
Recently, high-performance color converters excitable by blue laser diode (LD) have sprung up for projection displays. However, the thermal accumulation effect of the color converters is a non-negligible problem under high-power LD irradiation.
Zezhong Yang   +7 more
doaj   +1 more source

Laser light retinopathy

open access: yesromanian journal of ophthalmology, 2019
Objective: To report a clinical case of macular retinopathy after laser light exposition. Methods: We described a case of reversible maculopathy in a 29-year-old woman. Retinography and Optical Coherence Tomography were performed. Discussion: Retinopathy due to laser light is an increasingly frequent pathology because of its improper use and the ...
Carmen, Alba-Linero   +4 more
openaire   +2 more sources

Analysis of hybrid Nd:Yag laser-MAG arc welding processes. [PDF]

open access: yes, 2011
In the hybrid laser-arc welding process, a laser beam and an electric arc are coupled in order to combine the advantages of both processes: high welding speed, low thermal load and high depth penetration thanks to the laser; less demanding on joint ...
F. Coste   +9 more
core   +1 more source

Laser Headlamp with a Tunable Light Field

open access: yesEnergies, 2019
This study developed an optical module for laser headlamps with a tunable light field. Laser headlamps have high and low beam lighting functions that are applied by changing the numbers of unit headlamps.
Kuang-Wen Tseng   +7 more
doaj   +1 more source

Simulation of laser-driven cratering experiments on aluminum [PDF]

open access: yes, 2019
After a brief description of the physical principles involved in the cratering process, the authors present a specific methodology to simulate laser-driven cratering experiments performed with a long pulse duration (100 ns) and a small focal spot ...
Jean-Luc Rullier   +11 more
core   +1 more source

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