brightness gain

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• Gain (projection screens) — Gain is a property of a projection screen, defined by how much brightness is visible from the screen s centre when the viewer is looking at that point on axis to the centre. Gain is controlled by diffusion of the screen, and governs the degree… …   Wikipedia

• Gain — F/A/V The ratio of the signal level at the output of an audio device to the signal level at its input. Expressed in decibels (db). A&V Any increase or decrease in strength of an electrical signal. Gain is measured in terms of decibels or number… …   Audio and video glossary

• Differential gain — is a kind of linearity distortion which affects the color saturation in TV broadcasting. Contents 1 Composite color video signal 2 Non linearity in the broadcast system 3 Differential gain …   Wikipedia

• Differential gain — A&V A change in subcarrier amplitude of a video signal caused by a change in luminance level of the signal. The resulting TV picture will show a change in color saturation caused by a simultaneous change in picture brightness …   Audio and video glossary

• Saturation (chroma, chroma gain, color) — A&V • The intensity of the colors in the active picture. The voltage levels of the colors. The degree by which the eye perceives a color as departing from a gray or white scale of the same brightness. A 100% saturated color does not contain any… …   Audio and video glossary

• Bleaching of wood pulp — is the chemical processing carried out on various types of wood pulp to decrease the color of the pulp, so that it becomes whiter. The main use of wood pulp is to make paper where whiteness (similar to but not exactly the same as brightness ) is… …   Wikipedia

• Fluoroscopy — is an imaging technique commonly used by physicians to obtain real time moving images of the internal structures of a patient through the use of a fluoroscope. In its simplest form, a fluoroscope consists of an x ray source and fluorescent screen …   Wikipedia

• AN/PVS-14 — The AN/PVS 14 Monocular Night Vision Device (MNVD) is in widespread use by US Armed Forces as well as NATO allies around the world. [ [http://www.infrared1.com/PVS 14.html PVS 14D night vision monocular goggle ] ] It uses a third generation image …   Wikipedia

• Projection screen — Home theater projection screen displaying a high definition television image A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection… …   Wikipedia

• Astrophysical maser — An astrophysical maser is a naturally occurring source of stimulated spectral line emission, typically in the microwave portion of the electromagnetic spectrum. This emission may arise in molecular clouds, comets, planetary atmospheres, stellar… …   Wikipedia

• Fiber laser — A fiber laser or fibre laser is a laser in which the active gain medium is an optical fiber doped with rare earth elements such as erbium, ytterbium, neodymium, dysprosium, praseodymium, and thulium. They are related to doped fiber amplifiers,… …   Wikipedia