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4 terms
Photonics Dictionary
Clear All Filters x
erect image x
erect image
An image, real or virtual, whose spatial orientation is identical to that of the object. The image obtained at the retina with the assistance of an optical system is said to be erect when the...
Brucke loupe
A telemicroscope in which a negative eyepiece is used to produce erect images.
Galilean telescope
A refracting telescope that yields an erect image by the use of a positive lens for its objective and a negative lens for its eyepiece.
terrestrial telescope
A telescope that produces an erect image. Erection is achieved either by a lens (for a long instrument) or a prism (for a compact instrument). Very small terrestrial telescopes of low power may be of...
Photonics Dictionary
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