http://loupemagnifiers.com All About Loupe Magnifiers Mon, 28 May 2007 06:12:16 +0000 http://backend.userland.com/rss092 en The simple hand magnifier are often employed by microscopist in the preliminary examinations of objects. A very good form in lens was proposed by Dr. Wollaston, and called by him the Periscopic lens: which consisted of two hemispherical lenses cemented together by their plane faces, having a stop between them to ... http://loupemagnifiers.com/loupe-magnifiers/loupe-magnifiers-the-early-hand-magnifiers/ To assist us in gaining a clearer notion to the mode in which a single lens serve to magnify minute objects, it is necessary to take a passing glance at the ordinary phenomena of vision. The human eye is so constituted, that it can only have distinct vision when the ... http://loupemagnifiers.com/loupe-magnifiers/loupe-magnifiers-the-magnifying-power-of-lenses/