aperture

An opening that admits electromagnetic radiation to a film or detector. An example would be the lens diaphragm opening in a camera.




Related Terms
full aperture solar calibrator FAC or FASC,   partial aperture solar calibrator PAC or PASC,  

External links for aperture
aperture on Wikipedia
aperture on Google
aperture on Yahoo!
aperture on Answers
aperture on The Free Dictionary

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