So when we measure the CRI of a 3000K LED lamp, it is being judged against a "natural" light source that has the same spectrum as a 3000K halogen spotlight. (That's right - despite the awful energy efficiency of halogen and incandescent bulbs, they produce a full, natural and excellent...
(B))5. Sentence: Fall is the time to plant some bulbs. What does the word plant mean(意思是) in this sentence? A. a living thing that makes its own food from sunlight B. to figure out(找到) a way to make or do something C. to place(放) something in the ground(土地) so it...
Pure ohmic loads, like traditional incandescent light bulbs, have a power factor very close to 1. This means that voltage and current are in phase, so there is very little reactive power present in the transmission line. With positive power factors, the closer they get to zero, the larger...
A leap from bits to qubits: this two-letter change could mean entirely new horizons for healthcare. Quantum computing might bring supersonic drug design, in silico clinical trials with virtual humans simulated ‘live’, full-speed whole genome sequencing and analytics, the movement of hospitals to...
Watch the Cinema mode for a few days, and you'll see what I mean when you check Vivid again. Obviously the best mode comes down to personal preference. Hopefully this guide at least gave you an idea of what each mode does so you can find that personal preference. ...
Report offers general guidance intended to reduce the likelihood of compatibility-related dimming problems: (1) Also provides specific, step-by-step procedures for designing phase-controlled LED dimming on new & existing projects; (2) Examples provided by a Gateway demonstration - Burden Museum, ...
our eyes are sensitive to light quality and color. A red shirt lit directly with noontime sunlight will render much different than if lit under a fluorescent bathroom light. You will ask, why does this color look so different under different lights (Different as in: unsaturated, color shifted...
What Does Backlight Mean? Backlight is a category of illumination used in monitors utilizing liquid crystal display (LCD) technology. Liquid crystal display monitors cannot produce light by themselves, and must depend on light sources to provide visible images. Apart from being used in computer ...
What Does Light-Emitting Diode Mean? A light-emitting diode (LED) is a device that emits light when an electric current passes through it. LEDs first appeared in 1962 as practical electronic components that only emitted low intensity red light. Modern versions can be very bright and are ...
Why are incandescent bulbs typically made of very thin glass? What protects us from the solar wind ? Which component of light interacts with the Polaroid material? What role does magnetism play in ground control of artificial satellites? Why is only a neon la...