Word:

Positive eyepiece

an eyepiece consisting of two plano-convex lenses placed with their curved surfaces toward each other, and separated by a distance somewhat less than the focal distance of the one nearest eye, the image of the object viewed being beyond both lenses; - called also, from the name of the inventor, Ramsden's eyepiece.
See under Eyepiece.

See also: eyepiece Positive

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Position finder
Position micrometer
position paper
positionable
Positional
positional notation
positional representation system
positioner
positioning
Positive
positive charge
positive chemotaxis
positive correlation
Positive crystals
Positive degree
Positive electricity
-- Positive eyepiece --
positive feedback
positive fraud
positive identification
Positive law
positive magnetic pole
Positive motion
positive muon
Positive philosophy
positive pole
Positive quantity
positive reinforcer
positive reinforcing stimulus
Positive rotation
Positive sign
positive stimulus
Positively
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