Found 1 items, similar to Immersion lens.
English → English (gcide)
Definition: Immersion lens
Immersion
\Im*mer"sion\, n. [L. immersio; cf. F. immersion.]
1. The act of immersing, or the state of being immersed; a
sinking within a fluid; a dipping; as, the immersion of
Achilles in the Styx.
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2. Submersion in water for the purpose of Christian baptism,
as, practiced by the Baptists.
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3. The state of being overhelmed or deeply absorbed; deep
engagedness.
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Too deep an immersion in the affairs of life.
--Atterbury.
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4. (Astron.) The dissapearance of a celestail body, by
passing either behind another, as in the occultation of a
star, or into its shadow, as in the eclipse of a
satellite; -- opposed to
emersion.
[1913 Webster]
Immersion lens, a microscopic objective of short focal
distance designed to work with a drop of liquid, as oil,
between the front lens and the slide, so that this lens is
practically immersed.
[1913 Webster]