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Dictionary » B » Back aperture

Back aperture

Back aperture

(Science: microscopy) The exit pupil of a microscope objective lens. The objective lens back aperture, which can be examined with a phase telescope or by inserting a bertrand lens, displays the conoscopic interference figure and diffraction patterns.


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eye

... called the iris. It controls light levels inside the eye similar to the aperture on a camera. The round opening in the center of the iris is called ... is flat and divides the front of the eye (anterior chamber) from the back of the eye (posterior chamber). Its color comes from microscopic pigment ...

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by Dr.Stein
Mon Dec 12, 2005 8:29 am
 
Forum: Human Biology
Topic: eye
Replies: 11
Views: 1669


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