A noun is a type of word the meaning of which determines reality. Nouns provide the names for all things: people, objects, sensations, feelings, etc.
WHAT DOES APERTURE MEAN IN ENGLISH?
In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture of an optical system is the opening that determines the cone angle of a bundle of rays that come to a focus in the image plane. The aperture determines how collimated the admitted rays are, which is of great importance for the appearance at the image plane. If an aperture is narrow, then highly collimated rays are admitted, resulting in a sharp focus at the image plane. If an aperture is wide, then uncollimated rays are admitted, resulting in a sharp focus only for rays with a certain focal length. This means that a wide aperture results in an image that is sharp around what the lens is focusing on and blurred otherwise. The aperture also determines how many of the incoming rays are actually admitted and thus how much light reaches the image plane. In the human eye, the pupil is the aperture. An optical system typically has many openings, or structures that limit the ray bundles.
The definition of aperture in the dictionary is a hole, gap, crack, slit, or other opening. Other definition of aperture is a usually circular and often variable opening in an optical instrument or device that controls the quantity of radiation entering or leaving it.
The translations of aperture from English to other languages presented in this section have been obtained through automatic statistical translation; where the essential translation unit is the word «aperture» in English.
List of principal searches undertaken by users to access our English online dictionary and most widely used expressions with the word «aperture».
FREQUENCY OF USE OF THE TERM «APERTURE» OVER TIME
The graph expresses the annual evolution of the frequency of use of the word «aperture» during the past 500 years. Its implementation is based on analysing how often the term «aperture» appears in digitalised printed sources in English between the year 1500 and the present day.
Examples of use in the English literature, quotes and news about aperture
10 ENGLISH BOOKS RELATING TO «APERTURE»
Discover the use of aperture in the following bibliographical selection. Books relating to aperture and brief extracts from same to provide context of its use in English literature.
Apple Pro Training Series: Aperture 3
This book's real-world exercises feature professional photography from a variety of genres, including landscapes, portraits, wedding, and wildlife photography. • DVD-ROM includes lesson and media files • Focused lessons take you step-by ...
Dion Scoppettuolo, 2012
Apple Aperture 2: A workflow guide for digital photographers
The book includes clear explanations and step-by-step guidance on how to import, sort and navigate thousands of raw files like a pro; how to view and compare images to make selections quickly; how to turn good photos into beautiful images ...
Ken McMahon, Nik Rawlinson, 2012
Synthetic Aperture Radar Processing
A simple example then follows. This book will be invaluable to all SAR scientists and engineers working in the field. It may be used as the basis for a course on SAR image generation or as a reference book on remote sensing.
Giorgio Franceschetti, Riccardo Lanari, 1999
Understanding Synthetic Aperture Radar Images
This practical reference shows SAR system designers and remote sensing specialists how to produce higher quality SAR images using data-driven algorithms, and apply powerful new techniques to measure and analyze SAR image content.
Chris Oliver, Shaun Quegan, 2004
Aperture 3 Portable Genius
Designed for the Apple enthusiast, this handy, colorful guide is packed with ingenious and innovative tips for getting the most from Aperture 3, and the latest version 3.3 Offers advice on using the new streamlined interface, using advanced ...
Josh Anon, Ellen Anon, 2012
Inverse Synthetic Aperture Radar Imaging With MATLAB Algorithms
This book provides a full representation of Inverse Synthetic Aperture Radar (ISAR) imagery, which is a popular and important radar signal processing tool. The book covers all possible aspects of ISAR imaging.
Caner Ozdemir, 2012
Aperture Antennas and Diffraction Theory
Two alternative methods of aperture antenna analysis are described in this book.
Edward V. Jull, 1981
Processing of Synthetic Aperture Radar (SAR) Images
A. la.- =Z . depend on antenna pattern aperture and on the observation range: It
will be rather low because an aircraft or a spacecraft cannot possibly carry a very
large antenna. For example, the resolution of a SLAR with a 6 m long antenna ...
Henri Maitre, 2013
Real World Aperture
In this guide, best-selling author Ben Long takes Aperture users to the next level, providing them with a more in-depth understanding of Aperture's tools, as well as lots of tips and work-arounds to get the most out of the program.
Ben Long, 2006
Depth From Defocus: A Real Aperture Imaging Approach: A Real ...
This book is about passive techniques for depth recovery, where the scene is illuminated only by natural light as opposed to active methods where a special lighting device is used for scene illumination.
A.N. Rajagopalan, 1999
10 NEWS ITEMS WHICH INCLUDE THE TERM «APERTURE»
Find out what the national and international press are talking about and how the term aperture is used in the context of the following news items.
GoPro Introduces Smaller, Simpler Action Camera to Hero Line
The new model doesn't require a waterproof case because water can drain via the microphone aperture. While the device has battery life of ... «Bloomberg, Jul 15»
Asus Pegasus 2 Plus With 5.5-Inch Display, 3GB of RAM Launched
The highlight of the Asus ZenFone Selfie is it sports both 13-megapixel rear and front cameras with f/2.0 aperture, laser autofocus, 28mm focal ... «NDTV, Jul 15»