affected by infrared radiation; as, infrared detector; infrared film.

A region of the electromagnetic spectrum that is of lower energy and longer wavelength than visible light. Typical wavelengths of infrared radiation range from 1.0 mm to 780 nm (780 x 10-9 m).

Infrared refers to light waves of a lower frequency than human eyes can receive and interpret. Infrared is used to connect devices to other devices and peripherals such as printers. Infrared has its drawbacks. It is a "line of sight" technology - it doesn't work around corners or through walls. Its range is shorter than that of Bluetooth.

that portion of the electromagnetic spectrum adjacent to the visible light spectrum and with longer wavelengths. IR is often used for optical communications over FOTS or through the air.

Pertaining to energy in the 0.7-15.0 µm wavelength region of the electromagnetic spectrum. For remote sensing, the infrared wavelengths are often subdivided into near infrared (0.7-1.3 µm), middle infrared (1.3-3.0 µm), and far infrared (7.0-15.0 µm). Far infrared is sometimes referred to as thermal or emissive infrared.

Radiation beyond the red, from about 7000 angstroms up to 1 mm.

part of the electromagnet spectrum immediately less energetic than visible light, ranging from around 700 nanometers to 10 microns wavelength

Electromagnetic energy outside the visible band with wavelengths between 700 and 1,500 nanometers.

The portion of the spectrum whose wavelengths are invisible to the human eye (range = .76 microns and higher).

A form of electromagnetic radiation with wavelengths longer than visible light. Located just beyond red in the electromagnetic spectrum, infrared waves are generated by objects that produce heat, such as human beings or an incandescent light.

(abbrev IR) Electromagnetic waves in the frequency range just below visible light. Used in electronic devices to transmit information wirelessly especially remote controls.

invisible part of light, with longer wavelengths that are felt as heat radiation.

Radiant energy with wavelengths between 770 and one million nanometers, i.e., longer than the wavelengths of visible light. Applications include photography, heat lamps, industrial drying, and medical therapy.

The invisible rays just beyond the red end of the visible spectrum; these waves are longer than those of the spectrum colors, but shorter than radio waves and have a penetrating heating effect.

Light beyond red on the color spectrum, and therefore invisible to the human eye. Some photographic materials are sensitized to record infrared light.

range of wavelengths used for communication between remote devices nfrared "eye" the device used for communicating between the RCX and the computer. It is located on the front top of the RCX.

A special film that reacts to the infrared light spectrum. Results in dramatic color shifts in color film and ethereal glows in black-and-white film. This film requires special handling and processing.

The region of the electromagnetic spectrum adjacent to the visible spectrum, just beyond red with longer wavelengths.

invisible wavelengths of the spectrum, just longer than the color of red

The part of the electromagnetic spectrum just below the frequency range of visible light. Most remote controls use infrared light for signaling.

Invisible light radiation starting at a wavelength of 69 nil, (6900 P.).

AKA "IR". A portion of the light spectrum above our visible range, used by many modern remote controls to transmit signals. See also: frequencies, codes, infrared emitter, infrared receiver, operating distance, RF.

Electromagnetic radiation whose wavelength is longer than the longest visible red but shorter than radio waves.

Light that is outside the visible spectrumspectrum , below the red end of the spectrum.

The infrared includes electromagnetic radiation at wavelengths just beyond the visible spectrum. Infrared wavelengths are longer than visible radiation and shorter than microwave radiation. Humans perceive infrared radiation as "radiant heat." ( go to first use in the text)

Electromagnetic radiation (light) with a wavelenght that is longer than what the human eye can see.

electromagnetic radiation that we can feel as heat. Infrared has wavelengths longer than the red end of visible light and shorter than microwaves.

that portion of light which is invisible to the human eye.

Light waves just outside the visible spectrum, slightly longer than those visible to the human eye. Infrared light is sometimes filtered out to reduce heat on film or slides. See " Infrared control."

Portion of the electromagnetic spectrum immediately adjacent to visible light. Aproximately from 0.7µm to microwave.

Of or relating to invisible, electromagnetic radiation with wave-lengths greater than visible light and shorter than microwaves.

Region of the electromagnetic spectrum just outside the visible range, corresponding to light of a slightly longer wavelength than red light.

Infrared radiation is radiation at a longer wavelength than visible light, which means it cannot be seen by the naked human eye. As infrared radiation can be detected as heat, this can be shown on a screen or captured by a digital camera, with hotter objects showing up brighter against colder surroundings (e.g. a human body against a colder background). As color cameras can “see” infrared radiation as well as visible light, these cameras are equipped with an IR-cut filter, to prevent distortion of the colors the human eye can see. To use the camera in very dark locations or at night, this filter can be removed, to allow infrared radiation to hit the image sensor and thus produce images. An infrared lamp can be used for improved illumination for night surveillance, whilst not producing any extra visible light.

Electromagnetic waves in the frequency range just below visible light, corresponding to radiated heat. The wavelengths are longer than visible light but shorter than radio waves; lying outside the visible spectrum at its red end.

The electromagnetic wavelengths between the visible part of the spectrum (about 750 nm) and microwaves (about 30 pm).

A type of radiation give off by a hot stove or the sun, sensed as heat.

any electromagnetic wave whose wavelength is between 0.78 and 300 µM

A part of the electromagnetic spectrum just outside of the range of human vision. Typically in excess of 750 nanometers. There are film emulsion which are sensitive to these wavelengths and typically they produce very distinctive and unusual images.

The region of the electromagnetic spectrum with wavelengths in the range of 2.5 x 10-6 meters to 7 x 10-7 meters. Infrared photons are between optical and microwaves in the electromagnetic spectrum.

That portion of the spectrum generally taken from about 800 nanometers (0.8 microns) to about 40 microns.

the infrared part of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared"

having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end; "infrared radiation"; "infrared photography"

lying outside the visible spectrum at its red end - used of thermal radiation of wavelengths longer than those of visible light.

Feature that can sense or beam infrared light to illuminate low-light scenes.

is the part of the electromagnetic spectrum next to visible light. Wavelengths of infrared light are longer than those of visible light. The Ionosphere is the region in a planet's upper atmosphere of a planet where sunlight ionizes gases.

The region of the electromagnetic spectrum that covers from 1 to 100 microns. The term comes from the Latin base of beyond the red, as referring to the fact that beyond the red color of the light spectrum there is still energy but it is invisible to the human eye with out the aid of a infrared imaging instrument. The discipline of viewing objects based on there thermal properties is called "Infrared Thermography"

region of the electromagnetic spectrum that includes wavelengths from 0.7 to 1000 microns

Rays of light that give out heat.

A part of the electromagnetic spectrum of light bounded by visible light on its lower end and by microwave radiation on its upper end.

The area beyond red, outside of the visible part of the color spectrum.

Electromagnetic energy usually defined as heat in the invisible light spectrum beyond the 7600A range. Inverse Square Law: illumination law which states that the surface illumination, via a point source is proportional to the source intensity and inversely proportional to the square distance from the source and the surface. THERE ARE NO (- J -) technical machining terms, terminology.

Invisible light that is just below red in the visible spectrum of colors. In large quantities, it is manifested as heat. In small quantities it is used as a signalling medium for remote controls.

a form of light with slightly lower energy than visible light but with greater energy than radio waves

An area of the light spectrum past red and beyond the visual perception of the human eye. A number of manufacturers produce films that are sensitive, to varying degrees, to reflected infrared radiation in the near visible section of the infrared spectrum. Infrared film can be challenging and also rewarding to shoot because or its unique characteristics of "seeing" the effects of invisible light.

Light that is beyond red in the color spectrum. While the light is not visible to the human eye, infrared transmitters and receivers can send and receive infrared signals. See also Infrared Data Association; infrared device; infrared port.

A range of frequencies of light that are invisible to the human eye and are used for covert surveillance and low-light camera use.

Refers to infrared rays, the longer wavelengths below the red in the spectrum. Used, in combination with air, for drying operations.

Electromagnetic radiation at wavelengths that are longer than those the red end of the visible-light spectrum and shorter than microwaves (roughly between 1 and 100 microns). Very little infrared light reaches the surface of the Earth, although some can be observed by high-altitude aircraft (such as the Kuiper Observatory) or telescopes on high mountaintops (such as the peak of Mauna Kea in Hawaii).

The part of the electromagnetic spectrum between visible light and microwaves. The wavelength of infrared light is between 0. 7 micrometres (0.0007 millimetres) and 1 millimetre. These wavelengths are longer than those of visible light, but shorter than those of microwaves. (The prefix 'infra' means 'below; infrared refers to radiation below the frequency of red light.)

This is radiation with wavelengths longer that red in the spectrum but shorter than radio waves. The range of infrared wavelengths is about 700 nanometres to 1mm. Infrared is radiation is also known as heat radiation. Infrared radiation from the stars and other bodies is absorbed by water molecules in the atmosphere and so it is best observed by orbiting telescopes.

Invisible to the human eye, form of radiation

Electromagnetic radiation of wavelengths between 7500 A, the limit of the visible light spectrum at the red end, and centimetric radio waves.

Electromagnetic radiation band just beyond the red end of the visible spectrum.

That portion of the Spectrum whose wavelength is longer than that of red light, Only the portion between 0.7 and 20 microns gives usable energy for radiation detectors.

light rays that are beyond the spectrum visible to the human eye.

Light that is so red humans cannot see it. A band of the electromagnetic spectrum between the visible and the microwave. Photons of infrared light are less energetic than photons of visible light.

Electromagnetic waves whose frequency range is above that of microwaves, but below that of the visible spectrum.

Energy near visible light (beyond visible red) used by some types of film and by some autofocus camera devices.

Electromagnetic waves whose frequency range is above that of the microwave, but below the visible spectrum. LAN systems based on this technology represent an emerging technology. The networking groups at the University of Chicago are evaluating infrared systems for possible use where wire installation is impractical. Currently, the expense is too great and the robustness too questionable for implementation.

Refers to electromagnetic wavelengths that are longer than those of visible light but shorter than those of microwaves. Infrared light can be used to send signals wirelessly between computing devices, but requires a clear line of sight in order to operate properly.

A form of radiation that has a wavelength above that of visible light and below that of microwaves. Infrared radiation has wavelengths between 750 and...

The invisible portion of the electromagnetic spectrum that lies between 0.75 and 1000 microns.

Electromagnetic heat radiation whose frequencies are above the microwave frequency band and below red in the visible band.

The form of radiation used to make non-contact temperature measurements. In the electromagnetic spectrum it is the area beyond red light from 760 nanometers to 1000 microns.

electromagnetic radiation at wavelengths longer than the red end of visible light and shorter than microwaves (roughly between 1 and 100 microns). Almost none of the infrared portion of the electromagnetic spectrum can reach the surface of the Earth, although some portions can be observed by high-altitude aircraft (such as the Kuiper Observatory) or telescopes on high mountaintops (such as the peak of Mauna Kea in Hawaii).

Light with wavelengths 700-1000 nm, invisible to the eye, and felt as heat.

The band of light wavelengths too long to be seen by the human eye. Used in access control and security applications where bar code fields must not be visible by human eye -- only to an infrared scanner.

This is an electromagnetic wave just like visible light. It is in the part of the spectrum which is beyond human ability to see (in fact it is just beyond the red light we do see, hence the name). Normally associated with heat.

part of the electromagnetic spectrum that is just below the frequency range of visible light. Most remote controls work with infrared light.

Portion of the electromagnetic spectrum lying between the red end of the visible spectrum and microwave radiation (0.7 to 1000 micrometres).

The range of invisible electromagnetic radiation with wavelengths from about 750 nanometers (just longer than red in the visible spectrum), to 1 millimeter (on the border of the microwave region).

Radiant energy with wavelengths longer than visible red light.

A signal used by some assistive listening devices to send sound via infrared light waves.

refers to electromagnetic radiation with wavelengths greater than those of visible light and shorter than those of microwaves

A part of the electromagnetic spectrum that is not visible to humans, but is very near to the visible light spectrum.

Invisible rays of the spectrum, just beyond red, that have a penetrating heat effect.

invisible light with wavelengths longer than red.

An area in the electromagnetic spectrum extending beyond red light from 760 nanometers to 1000 microns (106 nm). It is the form of radiation used for making non-contact temperature measurements.

The band of light wavelengths too long to be seen by the human eye. Represented by waves that are between 750 and 4 million nanometers.

Wavelengths longer than 700 nm and shorter than 1 nm. We cannot see infrared radiation but can feel it as heat. Transmission of glass optical fibers is best in the infrared at wavelengths of 1100-1600 nm. (see Light)

Light not visible with the human eye at the red end of the light spectrum. Can be photographed with special film. May also be used in camera's remote control.

the band of light in the electromagnetic spectrum that lies between the visible light range and the radar range.

Electromagnetic energy within the wavelength interval generally defined from 0.7 to 100 microns.

A wavelength used to transmit data. Many mobile phones and computers have infrared ports, enabling data to be shared between two devices without wires.

Infrared is the part of the invisible spectrum that is contiguous to the red end of the visible spectrum.

the invisible radiation (as opposed to visible light) that certain LEDs emit. Standard MICRO SWITCH modulated LED controls have infrared emitting LEDs.

Infrared refers to energy in the region of the electromagnetic radiation spectrum at wavelengths longer than those of visible light, but shorter than those of radio waves. Infrared is used in a variety of wireless communications, monitoring, and control applications.

A group of long wavelength rays generated by heat from a hot body. They have the property of raising the temperature of the receiving body. These rays are utilized to accelerate the baking of finishing materials by use of infrared lamps or infrared burners, through the development of heat in the surface to which the coating has been applied.

Radiant energy, mainly heat, at wavelengths longer than visible red.

IR. Light waves just outside the visible spectrum; that is, waves slightly longer than those visible to the human eye. We use IR to transmit signal to receivers during simultaneous interpretation.

The portion of the electromagnetic spectrum with wavelengths greater than 700 nm (beyond human vision).

Wavelengths below the visible wavelength of light, felt as heat.

IR is part of the solar spectrum, or sunlight, that is invisible to the human eye. It has a wavelength range of ~790-3000 nanometers and has a penetrating heat effect. Short-wave IR converts to heat when it is absorbed by an object.

A part of the electromagnetic spectrum that is invisible to the human eye. Wireless remote controls use infrared signal to send control signals to components.

Lying outside the visible spectrum at the far end of visible light (above 760 nm).

Non-visible radiation from the long wavelength portion of the spectrum.

The band of electromagnetic wavelengths between 700nm to approximately 1mm. The transmission of light in glass optical fibres is most efficient in the infrared at wavelengths from 850nm to 1100nm.

The part of the electromagnetic spectrum whose radiation has longer wavelengths than optical radiation, but shorter wavelengths than radio waves . Because much infrared light is absorbed by the Earth's atmosphere, infrared astronomy is often performed in space.

Electromagnetic radiation with wavelengths longer than those perceived by the eye (visible light) but shorter than radio waves; objects between room temperature and 700 degrees Celsius emit infrared radiation.

The invisible heat radiations beyond the red end on the visible spectrum.

Electromagnetic radiation which occupies the band from 0.7 microns to 100 microns. Infrared radiation is between the visible spectrum and microwave radiation.

Electromagnetic radiation with slightly longer wavelengths and slightly smaller frequencies than those of visible light.

Invisible rays just under the red end of the visible spectrum. Waves are longer than those of the spectrum colors but shorter than radio waves; they have a penetrating heating effect and, consequently, are used in cooking, photograph, etc.

(see also electromagnetic spectrum) The heat that we feel from sunlight, a fire, a radiator or a warm sidewalk is caused by infrared radiation. Although our eyes cannot see it, the nerves in our skin can feel it as heat. Sometimes when looking at the Sun in infrared we can see details in the corona or below the photosphere we can not see in white light.

A longer wavelength of light, typically heat, which can be remotely sensed to determine the temperature of an object

An invisible radiation with very long wavelengths which is produced by light bulbs as well as visible radiation (light).

(IR): The region of the electromagnetic spectrum bounded by the long-wavelength extreme of the visible spectrum (about 0.7 µm, or 700 nm) and the shortest microwaves (about 0.1 µm or 100 nm).

Light waves that are slightly longer than visible light waves. They are found to the right of visible light in the electromagnetic spectrum. Infrared rays create most of the heat from sunlight and incandescent light bulbs.

Wireless transmission media that sends signals using infrared light waves. 9.39

The long wave, electromagnetic radiation of radiant heat emitted by all hot objects. On the electromagnetic spectrum, it can be found between microwave radiation and visible light. Water vapor, ozone, and carbon dioxide are capable of absorbing or transmitting infrared radiation. May be referred to as IR.

S-wave

This is a wave of light so red that humans cannot see it. However, it can be used to enhance visibility, particularly on night vision devices.

This word refers to light which can't be seen by humans, but can be seen be satellites. It usually indicates the presence of heat. For example infrared sensors can be used to determine whether or not clouds are present in a given place.

Light, with wavelengths greater than 800 nanometers (8000 Angstroms), that is invisible to the human eye. Infrared LEDs in emitters offer the highest amount of excess gain.

1) A form of radiant energy not visible to the eye. its frequency range is less than that of visible light, and its wavelengths are longer. With specialized equipment, it can be used for transmitting wireless signals. 2) A type of radiant heat generated by heating high emissivity materials to high temperatures.

The region of the electromagnetic spectrum bounded by the long-wavelength extreme of the visible spectrum (approximately 0.7 µm) and the shortest microwaves (approximately 0.1 mm).(IR)

The frequency range in the electromagnetic spectrum than is higher than radio frequencies but below the range of visible light.

Portion of the electromagnetic spectrum extending from the visible red end toward the longer wavelengths up to about one millimeter.

Infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. The name means "below red" (from the Latin infra, "below"), red being the color of visible light of longest wavelength. Infrared radiation spans three orders of magnitude and has wavelengths between approximately 750 nm and 1 mm.

Handheld devices can use this to transmit information to each other or to a printer without being physically connected

A method for transferring data between devices using infrared (line-of-sight) technology instead of cables or other wired connections.

Information is carried from PC to printer via invisible lightwaves (similar to what your TV remote uses). Use infrared to beam a document to your printer. Unlike wireless, infrared is a "line of sight" technology, and interference is uncommon.

A way to send signals from the main control unit to the different devices. Infrared signals must have a clear line of sight between the user interface and the item you wish to contro. The most common type of IR controller is a remote control.

A wireless technology used to connect two devices i.e. two phones or a phone and a PDA. Not to be confused with Bluetooth, Infrared requires a direct line of sight between the two devices' Infrared ports. (See Bluetooth)

A point-to-point, line of sight signal transmission medium, used predominantly for entertainment remote control functions.

(transmitter): The wireless transmission of data between electronic devices.

Infrared ports, found on laptops and PDAs, are designed to work like a tv remote control by sending a light beam to another infrared port. Infrared is suitable for transferring smal files between devices. Like a remote control, infrared has a limited range (25 feet) & requires a "line of sight".

This is a port on your laptop that uses infra red light as means of communication. The device is generally used as a means of data transfer between laptops mobile phones and printers. The infra red ports on both devices have to be lined and no more than a few metres apart for this to work. This can be somewhat slow & often difficult to setup. The maximum speed supported by an IRDA device is currently 4mbps

Some phones have an infrared eye built into them. This can be used to transmit data to a compatible device with an infrared eye, without needing to link the two with a cable. If you want to use your mobile to send computer data, to synchronise the contacts in your phonebook or to swap ringing tones with another infrared user, it's a big advantage.

The infrared eye built into your Nokia 6610 can be used to transmit data to another device with an infrared eye, without needing to link the two with a cable. If you want to use your mobile phone for sending computer data, to synchronize the contacts in your phone, or to swap ringing tones with another infrared user, it's a big plus.

Wire-free communication and data transfer via an infrared port. Infrared devices have to be lined up (requires line of sight) before data transmission can commence.

Enables you to wirelessly connect to mobile phones, computers and other devices however, the devices must be very close to each other.

Some Audience Response Systems utilize IR to transmit student choices, votes or answers from the Clickers to the base station (transceivers). These clicker remote controls need line-of-sight to the receiver to be able to work. This requires receivers permanently mounted on walls of the classroom to ensure students can aim their clickers at a receiver to be seen. IR does not penetrate walls and so does not interfere with other devices in adjoining rooms. Normally IR systems can handle about 40-50 clickers per receiver. Thus large class sizes of 200+ there would need to be many receivers installed in the room to support the system.

A type of wireless communication between computers, printers and other devices.

Infrared is commonly used for short-range (up to 20 feet) through-the-air data transmission. Many PC devices have infrared ports, called Infrared Serial Data Link (IRDA), to synchronise with other devices. IRDA supports speeds up to 1.5 Mbps.

Some phones have an infrared eye built into them. This can be used to transmit data to another device with an infrared eye, without needing a cable connection. If you want to use your mobile for sending computer data, or to synchronise the contacts in your phone book with a compatible phone or to swap ringing tones with another infrared user, it's a big advantage.

A type of connection that allows data to be wirelessly transmitted from a camera directly to another device when the infrared window on the camera is lined up with an infrared sensor on the other device.

Infrared is similar to Bluetooth in that it's another method of peer-to-peer networking. Here data is transmitted via radio waves across short distances from device to device. (The range data can be sent using infrared is shorter than with Bluetooth.) You could, for instance, send a text document to a colleague by bringing your notebooks close together and exchanging the data via each device's infrared port.

An interface design that requires no wires or cables; data are sent from the digital camera to an infrared receiver typically on a laptop computer, a palmtop computer, or a printer; uses the same technology as a television remote control.

A means of communicating between computers and other devices locally using infrared signals. It is therefore a 'line of sight' technology like a television remote control (i.e. the signal must not be blocked by an object).

See IrDA.