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8 terms
Photonics Dictionary
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lbo x
LBO
lithium triborate
elbow telescope
A refracting telescope that uses a prism to bend the line of sight 90°.
talbot
One lumen-second, the SI unit of the quantity of light.
Talbot's bands
The series of interference bands that appear in the spectrum when a specified glass plate is inserted into a spectroscope, from the side of the blue portion of the spectrum, so that the plate...
Talbot's law
The law stating that the brightness of an object that is examined through a slotted disc, rotating over a critical frequency, is proportional to the angular aperture divided by the opaque sectors.
coudé
A set of mirrors along a telescope's polar axis designed to redirect light to a fixed position without being affected by the motion or position of the telescope. From the French word for "elbow."
Amici prism
Also known as roof prism. A type of prism designed by G.B. Amici. It consists of a roof edge produced upon the long reflecting face of a right-angle prism. Used as an erecting system in elbow and...
roof or roof-angle prism
->
Amici prism
Also known as roof prism. A type of prism designed by G.B. Amici. It consists of a roof edge produced upon the long reflecting face of a right-angle prism. Used as an erecting system in elbow and...
Photonics Dictionary
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