Linse, Brenn- 



178 



In 



accelerator lens. Brenn- burning 

 glass, convex lens. Butzenschei- 

 ben- bull's eye lens. Doppel - 

 double lens, doublet. Doppel - 

 Schicht- double-layer lens. 

 Durchgriff-(cf . Lochblenden-) 

 aperture lens (through which 

 field or anode nay act or draw 

 electrons). Einblick- eyepiece 

 lens. Einzel- unit lens. Elek- 

 tronen- electron lens (either 

 electromagnetic or electrostatic). 

 Feld- anterior lens (in telescope 

 and microscope), field 1. Feld- 

 ebnungs- field flattener. 

 Fenster- aperture lens. Fern- 

 telephoto lens. Fli/ssi gkei ts- 

 (oil or vfater) immersion lens. 

 Halbkugel- semi-circular lens. 

 Haupt- second lens (in electron 

 gun). Hinter- back lens. 

 Immersions- (oil or water) im- 

 mersion lens; double aperture 

 lens (electron-opt.). Kugel- 

 spherical lens. Lochblenden- 

 (cf. Durchariffs-) simple aper- 

 ture lens (electronic). Loch- 

 scheiben- aperture lens (in scan- 

 ning disk). Muschel- globular 

 lens. Punktal- toric lens. 

 Sammel- condenser lens, conver- 

 gent 1., positive 1. Schau- 

 viewing lens. Scheitel- zenithal 

 lens, vertical 1. Stufen- echelon 

 lens. Trocken- dry lens, d. ob- 

 jective. Verzögerungs- cutoff 

 lens, stopping 1. (el. opt.). 

 Vorder- front lens, field 1. 

 Vor sammel- cathode lens, first 

 focusing 1. (like INehnelt cylinder, 

 aperture disk, etc., in c.-r. 

 tubes). Vorsatz- auxiliary lens, 

 supplementary 1., 1. attached in 

 front, magnascooe (to enlarge 

 projector image). Zerr- anamor- 

 phic lens, anamorphosing 1., dis- 

 torting 1. Zerstreuungs- dis- 

 persive lens, divergent 1., nega- 

 tive 1. Zusatz- supplementary 

 lens. Zwiebel- biconvex lens. 

 Zylinder- cylindrical lens. 



Linsen-abwei Chung aberration of a 

 lens, -achse optical axis of a 

 lens. 



1 insen'ahnl ich lenticular, lenticu- 

 lated, lens-shaped. 



L insen-deckgl as anterior surface of 

 a lens, -einschi ebebrett slidable 

 lens panel, -faserung. Augen- 

 fibrillation of lens (of eye), 

 -fassung lens barrel, 1. mount, 

 -fassung, Vi gnettierwi rkung der 

 vignetting effect or trimming of 

 light by lens mount, -fehler lens 

 defects, 1. aberrations, -folge 

 lens combination, system of lenses. 

 -grundpunkt cardinal point (of a 

 lens), -kranzabtaster lens drum 

 scanner, -prüf er lensometer. 

 -rasterf arbverfahren len^-icular or 

 lenticulated lens color printing 

 method, -rasterfilm lenticular 

 film, lenticulated f. -satz lens 

 combination, system or assembly of 

 lenses, -scheibe lens disk (scan- 

 ner). -Scheinwerfer spotlight. 

 -Scheitel vertex of lens, apex of 1. 

 -system, Fluorit- semi-apochromatic 

 lens system, fluorite l.s. -trommel 

 lens drum (scanner), -triibung 

 clouding of a lens, opacity of a 1. 

 -Vergütung s. Piasvergütung, 

 -weite, 1 ichte clear aperture of a 

 lens (useful or effective diameter). 

 -Zusammenstellung lens combination, 

 lens assembly. 



Lippenpfeife flue pipe, flute p. 



LI ssajousf i guren Lissajous figures, 

 L. curves, -apparat kaleidophone 

 (of Wheatstone). 



Literatur, Fach- technical literature, 

 t. press. 



Litze strand, stranded wire, braid, 

 lace, cord, string. 



Litzen-draht stranded wire, litzwire. 

 -spule litzwire coil. 



Lizenz, Zwangs- compulsory license. 



Lizenz-erteiler licenser, grantor, 

 issuer of a license, -gebühr 

 royalty, license fee. -nehmer 

 licensee, grantee, concessioner. 



In natural, Naperian or hyperbolic 



