Light Source in a sentence

The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that of the light source.

He said many farmers were transitioning from incandescent light bulbs to LED and fluorescent bulbs without realising that the incandescent bulb’s primary function was not for providing a light source but was typically used as a heat source.

Consider the case of an observer and a light source moving relative to each other at constant velocity, with a light beam moving from the source to the observer.

In radiometry and colorimetry (or color science more generally), the spectral power distribution (SPD) of a light source is a measure of the power contributed by each frequency or color in a light source.

Blue-light-blocking glasses have filters that block blue light waves given off by any light source -- the sun, screens, lightbulbs, etc.

A light detector is situated at an angle to the light source, typically at 90°, so that it receives only light reflected from passing particles.

Another calculation is made of the angle of incidence of light rays from the light source(s), and from these as well as the specified intensities of the light sources, the value of the pixel is calculated.

Infrared light sources can be used to augment the available ambient light for conversion by night vision devices, increasing in-the-dark visibility without actually using a visible light source.

Since the overwhelming majority of light rays from a given light source do not make it directly into the viewer's eye, a "forward" simulation could potentially waste a tremendous amount of computation on light paths that are never recorded.

The fourth type of light transport technique, radiosity is not usually implemented as a rendering technique, but instead calculates the passage of light as it leaves the light source and illuminates surfaces.

Ultraviolet light UV ozone generators, or vacuum-ultraviolet (VUV) ozone generators, employ a light source that generates a narrow-band ultraviolet light, a subset of that produced by the Sun.

Color rendering index The CIE color rendering index (CRI) is a method to determine how well a light source's illumination of eight sample patches compares to the illumination provided by a reference source.

When the illuminant is not a point source, the inverse square rule is often still a useful approximation; when the size of the light source is less than one-fifth of the distance to the subject, the calculation error is less than 1%.

The current blue light method needs a system tower that houses multiple units, including the light source, camera control unit and the video data recorder.

The items were examined at the Diamond Light Source facility in Oxfordshire, home to Britain’s synchrotron, a particle accelerator in which beams travel around a closed-loop path to produce light many times brighter than the sun.

Without a large light source like a baseball field or a flood light, all of my nighttime footage came out grainy and lacking detail.

Asterisms are best visible with a single-light source, and move across the stone as the light moves or the stone is rotated.

At a given observation angle, as the distance between the light source and the reflector decreases, the light that falls on the reflector increases.

By careful design of the laser components, the purity of the laser light (measured as the " linewidth ") can be improved more than the purity of any other light source.

Cited together, the CRI and CCT give a numerical estimate of what reference (ideal) light source best approximates a particular artificial light, and what the difference is.