infrared

(redirected from Line of light)
Also found in: Dictionary, Thesaurus, Encyclopedia.

infrared

 [in″frah-red´]
denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, i.e., of 0.75–1000 μm. Infrared rays are sometimes subdivided into long-wave or far infrared (about 3.0–1000 μm) and short-wave or near infrared (about 0.75–3.0 μm). They are capable of penetrating body tissues to a depth of 1 cm. Sources of infrared rays include heat lamps, hot water bottles, steam radiators, and incandescent light bulbs. Infrared rays are used therapeutically to promote muscle relaxation, to speed up the inflammatory process, and to increase circulation to a part of the body. See also heat.

in·fra·red (IR, ir),

(in-fră-red'),
That portion of the electromagnetic spectrum with wavelengths between 730 and 1000 nm.

infrared

/in·fra·red/ (-red´) denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, having wavelengths of 0.75–1000 μm; sometimes subdivided into long-wave or far i. (about 3.0–1000 μm) and short-wave or near i. (about 0.75–3.0 μm).

in·fra·red

(in'fră-red)
That portion of the electromagnetic spectrum with wavelengths between 770-1000 nm.

infrared

the electromagnetic radiation in the region between red light and radio waves. see ELECTROMAGNETIC SPECTRUM.

infrared (IR) (inˑ·fr·redˈ),

n electromagnetic radiation of longer wavelength than red light in the range of 730 nanometres (nm) to about 1 millimetre (mm).

infrared (IR)

Radiant energy of wavelengths between the extreme red wavelengths of the visible spectrum and a wavelength of a few millimetres. The wave band comprising radiations between 780 and 1400 nm is referred to as IR-A. Excessive exposure to these radiations can cause visual loss (e.g. eclipse blindness) and cataract. The waveband comprising radiations between 1400 and 3000 nm is referred to as IR-B. Excessive exposure to these radiations can cause cataract and corneal opacity. The wave band comprising radiations between 3000 and 1 ✕ 106 nm (or 1 mm) is referred to as IR-C. Excessive exposure to these radiations can cause cataract (heat-ray cataract). See eclipse blindness; absorptive lens; infrared optometer.

infrared

denoting electromagnetic radiation of wavelength greater than that of the red end of the spectrum, having wavelengths of 0.75-1000 μm. Infrared rays are sometimes subdivided into long-wave or far infrared (about 3.0-1000 μm) and short-wave or near infrared (about 0.75-3.0 μm). They are capable of penetrating body tissues to a depth of 10 mm. Sources of infrared rays include heat lamps, hot water bottles, steam radiators and incandescent light bulbs.
Infrared rays are used therapeutically to promote muscle relaxation, to speed up the inflammatory process, and to increase circulation to a part of the body. See also heat.
References in periodicals archive ?
The advancing line of light will be filmed from a helicopter.
In Carlisle, thousands of people are expected to take part in a torchlight procession to meet the line of light as it passes through Bitts Park.
The Illuminating Hadrian's Wall event on Saturday March 13 will see a spectacular line of light created along the route of the Hadrian's Wall Path National Trail.
The Illuminating Hadrian's Wall event on March 13 will see a spectacular line of light created along the route of the Hadrian's Wall Path National Trail.
The 500 volunteer illuminators we want to recruit for this event will also play a crucial role in creating the line of light.
TORCH-bearing volunteers are needed to create a stunning line of light along the length of Hadrian's Wall.
PLANS have been unveiled to create a spectacular line of light from coast to coast, along the length of Hadrian's Wall, next year.
A separate camera crew will film the line of light as it progresses from Wallsend to the west coast with pictures being beamed to giants screens in Carlisle and at two major events in the North East, details of which will be revealed later.
It produces a full line of light density fiberglass insulation products for use in residential and commercial applications.
The company's line of Light, Medium and Heavy TWS can be used for homeland defense initiatives, such as first responders and government customs and border control/protection agencies, in addition to private security companies, domestic law enforcement agencies, and for applications where the protection of high-value assets and critical infrastructure from terrorist threats are priorities.
At the end of the day, DRV, a small-volume manufacturer, catapults into not just providing our existing line of light to medium duty systems and fuel station sales and service, but now an addition of retrofit systems for heavy duty Class 7 and 8 vehicles.
In addition to PDT research, this company manufactures a unique line of Light Emitting Diode (LED) devices (OmniLux Blue, Revive and PDT) which are specially designed for dermatology and cosmetic PDT applications.