Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength of incident light. The study is published in Advanced Materials.

The proposed technique is demonstrated experimentally by examples of bandpass spectrum, stairs, right triangle, and Gaussian spectra. A theoretical model for simulating polychromatic light field ...

Most lens systems of the microscope cannot bring all wavelengths of (polychromatic) white light to a single converging point perfectly -- a handicap that only highly specialized lenses can correct.

This Symynelec light bulb camera rises to the top of our recommendations for a couple of important reasons. First, while it has important standbys like motion detection and two-way audio, it also ...

As an anti-aging treatment, low-level light therapy with red and infrared wavelengths can improve how skin cells work, explains Dr. Heather Rogers, a dermatologist at Modern Dermatology in Seattle.

The polychromatic light show was even brighter and more vivid just before the photo was taken, he added. Another moonbow was then spotted the same night above Keuka Lake in New York state, Finger ...

The light rope itself comes with either 252 (for the 9.8-foot rope) or 420 (for the 16.5-inch version) embedded LEDs, good for a density of 84 LEDs per meter (same as the first-gen Neon Rope Light).

Blue light from the sun is vital in regulating a person’s sleep-wake cycle. New research suggests that blue light does not affect a person’s “internal clock.” ...

Blue-light-filtering glasses have become an increasingly popular solution for shielding our eyes from electronic screens’ near-inescapable glow—light that is commonly associated with eyestrain ...