A triplet lens is an optical device consisting of three single lenses. The triplet design is the simplest to give the required number of degrees of freedom to allow the lens designer to overcome all
The term is used in two ways. The three lenses may be cemented together, as in the "Steinheil triplet". A triplet may also be a design with three spaced glasses, e.g. the
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Triplet — [französisch, zu triple »dreifach«, von gleichbedeutend lateinisch triplus] das, s/ s, ein abbildendes optisches System (Objektiv) aus drei getrennt stehenden Linsen, von denen die beiden äußeren sammelnd wirken, die innere dagegen zerstreuend … Universal-Lexikon
Triplet de Cooke — Le triplet de Cooke est un objectif photographique mis au point par Harold Dennis Taylor en 1893, alors qu il travaillait chez Cooke of York, mais qui fut manufacturé après le dépôt de brevet par une autre entreprise, Taylor, Taylor and Hobson.… … Wikipédia en Français
triplet — /trip lit/, n. 1. one of three children or offspring born at the same birth. 2. triplets, three offspring born at one birth. 3. any group or combination of three. 4. Pros. three successive verses or lines, esp. when rhyming and of the same… … Universalium
triplet — 1. One of three children delivered at the same birth. SYN: tridymus. 2. A set of three similar objects, as a compound lens in a microscope, formed of three planoconvex lenses. 3. SYN: codon. nonsense t. 1. a trinucleotide (codon) … Medical dictionary
List of lens designs — * Achromatic doublet * Apochromatic doublet * Biconcave lens * Biconvex lens * Convex concave lens * Celor lens * Chevalier lens * Cooke Triplet * Dialyt lens * Double Gauss lens * Doublet lens * Eyepiece * Field lens * Fisheye lens * Fresnel… … Wikipedia
Fresnel lens — A Fresnel lens (pronounced [ frɛz.nəl] or [freɪ nɛl] ) is a type of lens invented by French physicist Augustin Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large aperture and short focal… … Wikipedia
Cooke triplet — Introduced in: 1893 Author: Dennis Taylor Construction: 3 elements in 3 groups Aperture: f/3.5 (early) … Wikipedia
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
Dialyte lens — A dialyte lens (sometimes called a dialyt[1]) is a compound lens design that corrects optical aberrations where the lens elements are widely air spaced.[2] The design is used to save on the amount of glass used for specific elements or where… … Wikipedia
Dialyt lens — A Dialyt lens is a photographic lens with a symmetrical design consisting of four lenses: the outer pair are biconvex and the inner pair are biconcave. The symmetrical structure provides good correction for many aberrations.The Aviar type of lens … Wikipedia
