Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


N/A

(1) See numerical aperture.

(2) (Not Applicable) A commonly used abbreviation in the English language for entering nothing in a form or table field because no data are relevant to the situation.



numerical aperture

The measurement of the acceptance angle of an optical fiber, which is the maximum angle at which the core of the fiber will take in light that will be contained within the core. Taken from the fiber core axis (center of core), the measurement is the square root of the squared refractive index of the core minus the squared refractive index of the cladding. See critical angle and fiber optics glossary.




The Acceptance Angle
The numerical aperture measures the acceptance angle of a fiber.






Personal Use Only

Before/After Your Search Term
BeforeAfter
mySAPN-AMPS
mySAP Business SuiteN-CDMA
mySAP.comn-channel
Mysequeln-dimensional
MyServicesn-key
Myspacen-key rollover
MySQLN-MOS
Mythical Man-Monthn-standard router
myTouchN/T
N-8-1n-tier

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design