achromatic lens

achromatic lens

Lens (or combination of lenses) that brings different wavelenghts within a ray of light to a single focus, thus overcoming chromatic aberration. It was first successfully made by Joseph von Fraunhofer.

0 0

Improve it

Add an image

Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Astronomy
Category: General astronomy
Company: Caltech
Product:
Acronym-Abbreviation:

Collect to Blossary

Other Languages:

Related terms

achromatic

Education; SAT vocabulary

Colorless; it literally means “without color”. It can also refer to greys or neutral colors.

achromatic

Engineering; Electronic engineering

1. Without color. In a TV image, the tones from black through gray to white. The term occasionally refers to black-and-white television, although monochromatic is more often used ...

achromatic

Medical devices; Radiology equipment

Particles of differing energies are brought to the same focus (bending magnet does just that)

achromatic

Physics; General physics

capable of transmitting light without decomposing it into its constituent colors.

astronomical unit (AU)

Astronomy; General astronomy

Approximately equal to the mean earth-sun distance, which is about 150,000,000 km or 93,000,000 miles. Formally, the AU is actually slightly less than the earth's mean distance ...

celestial coordinates

Astronomy; General astronomy

Any system for locating the positions of objects on the celestial sphere. Various systems are defined, according to the chosen point of observation (the origin) and the plane of ...

distance modulus

Astronomy; General astronomy

The difference between the apparent magnitude of an object, m, corrected for *interstellar absorption, and its absolute magnitude, M. This difference is directly linked to the ...

luminosity class

Astronomy; General astronomy

A classification of stars according to their luminosity, which can vary widely for a given *spectral type. Luminosity class indicates, for example, whether a star is a supergiant, ...

asteroid

Astronomy; General astronomy

Any of the many small rocky or metallic objects in the Solar System, mostly lying in a zone (the asteroid belt) between the orbits of Mars and Jupiter; also known as a minor ...

elliptical galaxy

Astronomy; General astronomy

A type of galaxy with a smooth, featureless circular or elliptical appearance, no spiral arms, and little or no interstellar gas or dust; symbol E. Elliptical galaxies range from ...

Terms in the News

Featured Terms

Harry8L

0
Terms
0
Blossaries
1
Followers

Industry/Domain: Holiday Category: Observances

Steve Jobs Day

Launched by digital advertising agency Studiocom, Steve Jobs Day is in celebration of the greatness that Jobs achieved during his lifetime. People ...