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Köhler illumination is a method of specimen illumination used for transmitted and reflected light (trans- and epi-illuminated) optical microscopy. Köhler illumination acts to generate an even illumination of the sample and ensures that an image of the illumination source (for example a halogen lamp filament) is not visible in the resulting image.
Illuminated manuscript. Various examples of pages from illuminated manuscripts. An illuminated manuscript is a formally prepared document where the text is decorated with flourishes such as borders and miniature illustrations. Often used in the Roman Catholic Church for prayers and liturgical books such as psalters and courtly literature, the ...
Material: vellum: Size: ≈ 23.5 cm × 16.2 cm × 5 cm (9.3 in × 6.4 in × 2.0 in) Format: One column in the page body, with slightly indented right margin and with paragraph divisions, and often with stars in the left margin; [12] the rest of the manuscript appears in the form of graphics (i.e. diagrams or markings for certain parts related to illustrations), containing some foldable parts
A diffuser sheet is placed on both sides of the prism sheet to distribute the light of the backlight uniformly, while a mirror is placed behind the light guide plate to direct all light forwards. The prism sheet with its diffuser sheets are placed on top of the light guide plate.
Gold ground (both a noun and adjective) or gold-ground (adjective) is a term in art history for a style of images with all or most of the background in a solid gold colour. Historically, real gold leaf has normally been used, giving a luxurious appearance. The style has been used in several periods and places, but is especially associated with ...
Miniature of Sinon and the Trojan Horse, from the Vergilius Romanus, a manuscript of Virgil's Aeneid, early 5th century. A miniature (from the Latin verb miniare, "to colour with minium", a red lead [1]) is a small illustration used to decorate an ancient or medieval illuminated manuscript; the simple illustrations of the early codices having been miniated or delineated with that pigment.
Electroluminescence. Electroluminescence (EL) is an optical and electrical phenomenon, in which a material emits light in response to the passage of an electric current or to a strong electric field. This is distinct from black body light emission resulting from heat (incandescence), chemical reactions (chemiluminescence), reactions in a liquid ...
Cotton library. The Pearl Manuscript (British Library MS Cotton Nero A X/2), also known as the Gawain manuscript, [1] is an illuminated manuscript produced somewhere in northern England in the late 14th century or the beginning of the 15th century. It is one of the best-known Middle English manuscripts, [2] the only one containing alliterative ...