- fluorite objective
- a microscope objective in which some of the lenses are made from fluorite instead of glass.
Medical dictionary. 2011.
Medical dictionary. 2011.
fluorite objective — Microscope objective corrected for spherical and chromatic aberration at two wavelengths. Better than an ordinary objective corrected at one wavelength but inferior to (and much cheaper than) a planapochromatic objective … Dictionary of molecular biology
Fluorite — General Category Halide mineral Chemical formula CaF2 … Wikipedia
Takahashi Seisakusho — is a Japanese manufacturer of telescopes and related equipment, such as eyepieces and mounts. Often known simply as Tak , the brand is especially noted amongst amateur astronomers for its range of apochromatic refractors.Takahashi pioneered the… … Wikipedia
geology — /jee ol euh jee/, n., pl. geologies. 1. the science that deals with the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is… … Universalium
Photographic lens — A photographic lens (also known as objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media… … Wikipedia
Mount Gee — Mount Gee … Wikipedia
Refracting telescope — A refracting or refractor telescope is a dioptric telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used in other devices such… … Wikipedia
china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material … Universalium
China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast … Universalium
Microscope — An optical instrument that augments the power of the eye to see small objects. The name microscope was coined by Johannes Faber (1574 1629) who in 1628 borrowed from the Greek to combined micro , small with skopein, to view. Although the first… … Medical dictionary