Phosphor

Reviews Recap: the most exciting products we've tested the week of February 24, 2025

This future display tech uses ultraviolet LEDs to excite a series of quantum dots. Here's why this could be the next big thing.

Mechanoluminescence (ML) located within the near infrared (NIR) spectral range may hold promising applications in in-situ and real-time biomechanical imaging. This is due to the better spatial resolution and penetration depth of the biological tissues, lower optical loss, and the avoidance of autofluorescence.

The eutectic structure of metals and ceramics occurs when multiple solid phases solidify from a liquid phase, forming a three-dimensional (3D) pattern through a self-organizing phenomenon. Traditionally, it was believed that eutectic structures could only be obtained through a melt-solidification process.

Article URL: http://www.gravityloss.com/2023/02/industry-refactoring/ Comments URL: https://news.ycombinator.com/item?id=34765128 Points: 1 # Comments: 0

We explain the ins and outs of how DLP projectors work (with animated .GIFs!) from the projection experts at ProjectorScreen.com

In my wanderings through machines that can be used as dedicated, retro-distraction-free writing devices, I had already gone into a few quite forgotten places. I'm fascinated by machines that …

White LEDs may soon be dethroned as the world's go-to light source by an alternative with a much better sense of direction.

Atari 50 's "Vctr Sctr" is an addictive love letter to a long-lost arcade era.

One of the newest flat-panel display technologies to appear is SED, or "Surface-Conduction Electron-emitter Display," jointly developed by Canon and Toshiba. An SED display consists of a rear glass pl

Article URL: https://codewords.recurse.com/issues/seven/a-history-of-storage-media Comments URL: https://news.ycombinator.com/item?id=32391424 Points: 2 # Comments: 0

Pb-free all-inorganic halide double perovskites (DPs) have emerged as an important class of environmentally benign phosphors for optoelectronic applications. The studies on them are mainly restricted to the visible spectral region.

An old list I printed, before the days I began putting my interests online. OCR scanned it, and filled in the more recent stuff. early '80's: become interested in subway trains. Envisio…

Since the introduction of fluorescent lamps, the lighting industry knows about flicker issues. However, many aspects are still unclear. Especially effects beyond the flicker fusion threshold are mostly ignored, and sometimes even denied. Dr. Walter Werner, CEO of Werner Consulting, gives a summary of research results indicating that further research is needed and that for high quality lighting very likely a much…

Sony has added lasers to its full range of projectors while bringing the price of native 4K resolution to a new level of affordability.

Here's why energy saving light bulbs have become so popular and how they light up our homes, schools and workplaces.

Apple's Pro Display XDR is now over five years old, and while there are rumors about a second-generation model, surprisingly little is known...

Charge-trapping defects in crystalline solids play important roles in applications ranging from microelectronics, optical storage, sensing and quantum technologies. On one hand, depleting trapped charges in the host matrix reduces charge noise and enhances coherence of solid-state quantum emitters. On the other hand, stable charge traps can enable high-density optical storage systems. Here we report all-optical…

Apple's Pro Display XDR 2 might feature a quantum-dot display like the M4 MacBook Pro. Here are all the details on this.

The best improvement was hidden away.