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7 terms
Photonics Dictionary: A
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objectives x
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Abbe illumination
Image of a uniform source through the sample of a microscope image system. Light from the sample plane is reimaged by the objective into the image plane.
alignment telescope
An optical tooling instrument consisting of an objective lens, a focusing lens, an optical micrometer, a reticle and an eyepiece. The alignment telescope projects a precise line of sight to which a...
Amici objective
A form of high-power microscope objective.
apertometer
An instrument designed to measure the numerical aperture of an objective.
aperture diaphragm
The second adjustable iris diaphragm in an optical system. In the common microscope condenser system, it usually is located beneath the substage condenser on a transmitted light microscope. When the...
apochromat
An apochromat, often referred to as an apochromatic lens or apochromatic objective, is a type of optical system designed to minimize chromatic aberration. Chromatic aberration occurs when different...
astronomical telescope
An astronomical telescope is a type of optical instrument designed to gather and magnify light from distant celestial objects for observation and analysis. It typically consists of two main optical...
Photonics Dictionary
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