The sales pitches tempt: Blue-light-blocking glasses are supposed to protect eyes from the effects of short-wavelength light emitting from our smartphones, computer screens and LED lights. Given how much time we spend on our devices, this sounds like a smart investment, right? After all, eye...
Blue light emitting glass and preparation method thereofdoi:EP2447228 A1Wenbo MaZhaopu ShiMingjie Zhou
In view of the fact that luminescent compounds and polymers capable of emitting blue light for a long time and excellent in durability have not been developed, the present invention provides blue light-emitting compounds having special structures, blue light-emitting polymers having special repeating ...
Blue light-emitting diodes (LEDs) with different p-doping concentrations in the last barrier have been studied numerically. The energy band diagrams, carrier concentrations, internal quantum efficiency and light output power are investigated using APSYS software. The simulation results show that the LED...
from the number of night shifts during a standard five week block period, with eight or nine shifts in seven cases, instead of the protocolled seven shifts. The glasses were used, on average, at 5.3 night shifts (SD = 1.8; range 1–9). Overall, the light-emitting glasses were used ...
Also, when outdoors in daylight, always wear sunglasses that filter blue light (as well as 100% of the sun's UV rays) after cataract surgery. And when using computers and other digital devices for extended periods, wear computer glasses that provide better blue light filtering than standardread...
Furthermore, a two-unit stacked tandem hyperfluorescence organic light-emitting diode achieves an ultrahigh external quantum efficiency of 74.5% with low efficiency roll-off at high luminance values. This performance represents a remarkable balance between efficiency and colour purity in the deep-blue ...
We report on the fabrication and properties of single layer blue light-emitting diodes (LEDs) based on conjugated polymer blends of emissive and hole transport materials. Despite the fact that the photoluminescence quantum efficiency of the blend is lower compared to that of both the host and the...
Solvent-free synthesis of stable heterostructured-CsPbBr3/Cs2PbBr5 assisted by SiO2 for white light-emitting diodes Continuously improving the stability of lead halide perovskite nanocrystals (NCs) to meet the requirement of industrialization has received tremendous attention. Phase structure modulation or ...
Researchers do note, though, that blue light-emitting devices are relatively new in the grand scheme, and more long-term studies are needed to learn more about their effects. Other Risks and Side Effects Aside from concerns about eye damage, too much blue light exposure at night is nowlinked...