Latest Articles
-
Chromatic Aberration
What Does Chromatic Aberration Mean?Chromatic aberration is an optical phenomenon in which correct images cannot be produced due to the inability of the camera lens to focus the wide range of wavelengths of light on the same plane. In other words, the colors are wrongly refracted/bent by the camera lens,...
By: Margaret Rouse | Technology expert -
Duplexer
What Does Duplexer Mean? A duplexer is an essential component in modern gadgets using radio communications. It permits duplex communications, which allows bidirectional transmission on a single path. There are many different types of duplexers. An example of a duplexer based on frequency is a wavelength filter, while a duplex...
By: Margaret Rouse | Technology expert -
Doppler Effect
What Does Doppler Effect Mean?The Doppler effect is a phenomenon related to the effects of moving objects on an electromagnetic field. In this, an observer in relative motion to a wave experiences a change in the frequency or wavelength of the wave. For example, consider a person standing near a...
By: Margaret Rouse | Technology expert -
Digital Audio Tape
What Does Digital Audio Tape Mean? Digital Audio Tape (DAT) is a recordable digital audio format. It was introduced in 1987 by Sony and looks similar to compact cassettes, but is smaller in size. Used primarily for playing and recording audio and intended as a replacement for analog audio compact...
By: Margaret Rouse | Technology expert -
Computer-To-Plate
What Does Computer-To-Plate Mean? Computer-to-plate (CTP) is an imaging technology which helps to transfer a digital image generated in a computer directly to a printing plate. Before CTP, the technology used was computer-to-film (CTF), where the image output was passed to a photographic film, and the output film was then...
By: Margaret Rouse | Technology expert -
Extremely Low Frequency
What Does Extremely Low Frequency Mean?Extremely low frequency (ELF) is the designation given by the International Telecommunication Union (ITU) for radio waves or electromagnetic radiation with frequencies that range from just 3 Hz to 30 Hz and with corresponding wavelengths. But in atmospheric science, ELF is alternatively given a range...
By: Margaret Rouse | Technology expert -
Ground-Plane Antenna
What Does Ground-Plane Antenna Mean?A ground-plane antenna is a form of dipole antenna designed to work with an unbalanced feed line. A ground-plane antenna is more of less one half of the dipole and mounted above the ground plane. Ease of fabrication and cost makes the ground-plane antenna one of...
By: Margaret Rouse | Technology expert -
Helical Antenna
What Does Helical Antenna Mean?A helical antenna is a specialized antenna that is considered as a hybrid of the radiating elements — loop antennas and the dipole. In a helical antenna, the conducting wire is wound in the form of a helix. The antenna, in most cases, is mounted over...
By: Margaret Rouse | Technology expert -
Grating Light Valve
What Does Grating Light Valve Mean?A grating light valve (GLV) is an optical technology used in producing a projection with the aid of a dynamically adjustable diffraction grating. This adjustable grating is a subcategory of light valve technology, which is used in a number of types of projectors. Techopedia Explains...
By: Margaret Rouse | Technology expert -
Luminous Flux
What Does Luminous Flux Mean?Luminous flux is the measure of brightness of a light source in terms of energy being emitted. Luminous flux, in SI units, is measured in the lumen (lm). It is a measurement of energy released in the form of visible light from a light-producing source. Luminous...
By: Margaret Rouse | Technology expert
