achromatic composition
21Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… …
22CIECAM02 — Published in 2002 by the CIE Technical Committee 8 01 ( Colour Appearance Modelling for Color Management Systems ), as of 2008 CIECAM02 is the most recent color appearance model ratified by the CIE, and the successor of CIECAM97s.cite… …
23photography, history of — Introduction method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …
24History of Medicine — History of Medicine † Catholic Encyclopedia ► History of Medicine The history of medical science, considered as a part of the general history of civilization, should logically begin in Mesopotamia, where tradition and philological… …
25Fraunhofer , Josef von — (1787–1826) German physicist and optician Fraunhofer, whose family was in the optical trade, was born in Straubing (now in Germany); he was apprenticed to an optician in Munich after his parents died. He subsequently moved to the Utzschneider… …
