maksutov telescope
Definition
Noun: A Maksutov telescope is a type of reflecting telescope (catadioptric telescope) that uses a spherical primary mirror combined with a meniscus-shaped corrector lens (a thick, deeply curved lens) at the front of the telescope to significantly reduce optical aberrations, particularly spherical aberration.
Usage
The term is used to specify a particular optical design in astronomy and optics. It names the instrument itself. * He purchased a Maksutov telescope for its compact design and sharp planetary views. * The Maksutov telescope is popular among amateur astronomers for astrophotography.
Advanced Usage
- Often abbreviated colloquially as a "Mak" (e.g., "a 5-inch Mak").
- The design principle is specifically the Maksutov–Cassegrain configuration, where the corrector lens has a secondary mirror spot aluminized on its inner surface, folding the light path.
Variants and Related Words
- Maksutov–Cassegrain telescope: The full name for the most common implementation of the Maksutov design.
- Catadioptric telescope: The broader category of telescopes that use both lenses (refraction) and mirrors (reflection), which includes the Maksutov design.
- Meniscus corrector: The key optical element that defines the Maksutov design.
Synonyms
- Mak (informal abbreviation)
- Maksutov–Cassegrain (specific variant)
Related Phrases/Concepts
- Optical corrector: A general term for a lens or lens group designed to cancel out aberrations in a telescope.
- Spherical aberration: The optical flaw that the Maksutov design is engineered to correct.
Noun
-
reflecting telescope in which the aberration of the concave mirror is reduced by a meniscus lens
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