Objektkammer 



205 



Öl schiefer 



Objekt-kammer object chamber, 

 -mikrometer stage micrometer, 

 -schlevse object airlock. -sucher 

 object finder (opt.) -tisch 

 micrometer stage, object stage or 

 stand, manipulator, -träger 

 object slide, mount, stage or 

 stand, o. support, o. carrier 

 (plate), specimen holder (e.g., 

 a celluloid film or skin), 

 -trägerplättchen object support 

 lamina or slide (film or skin), 

 -umfang range of brightness (of 

 subject ) . 



Ofen, Etagen- storey furnace, -sohle 

 furnace bottom, bed, sole or 

 floor. 



ofentrocken kiln- or oven-dried, d. 

 in kiln or oven. 



offen hollow (of sound). 



-(er) Schwinger open oscillator. 

 -(e) Sprache open language, un- 

 coded 1. einseitig- unilateral- 

 ly open (-ended). 



offenbarer Unsinn manifest absurdity. 



Offenbarung disclosure. 



offenkundige oder öffentliche 



Vorbenutzung public use, prior use. 



öffentlichen Hand, Betrieb der 

 public Utility. 



öffnen, eine Röhre open, unlock, 

 render conductive, allow dis- 

 charge, cause breakdown of a 

 tube, trigger a t. (say, a 

 blocking oscillator). -, einen 

 Stromkreis break or open a cir- 

 cuit or a line. 



Öffnung aperture, orifice, opening, 

 mouth, vent, leak, crack, slit, 

 port; F number (opt.) 

 -»numerische, des Objektivs 

 numerical aperture of objective. 

 Blenden- aperture of diaphragm or 

 stop. Mundstück- chink between 

 mouthpiece and reed (of clarinet). 

 Schall- louvre (of bell tower). 

 Spalt- chink (of clarinet). 

 Verschluss- shutter aperture, s. 

 opening. 

 Of fnungs-bi Id aperture image, 

 -fehler apertural defect, error 

 or effect. -Verhältnis aperture 



ratio, relative a.; field of view 

 (picture projection), -weite 

 flare, width of opening, (of horn, 

 trumpet, etc.) -winkel, Halb- 

 semi-apertural angle. -Winkel- 

 messer apertometer. 



Ohm' scher Widerstand ohm resistance, 

 steady -current r. 



Ohr ear, lug, eye, catch, loop. 

 -,vertäubtes deafened ear. 



Öhr ear, handle, eye, catch, eyelet. 



Ohrempfindungsgrenze loudness con- 

 tour of ear, auditory sensation 

 area. 



Ohren-kappe ear muff, -kurve 



. auditory sensation curve, -muschel 

 ear, cap, e. piece. 



Ohr höhle ear cavity. 



Ökonomiekoeffizient efficiency of 

 economy. 



ökonomisch economic (al). 



Oktaeder octahedron. 



oktaedrisch octahedral. 



Oktave, e i ngestr i chene one-stroked 

 octave. 



Oktavkoppel octave coupler (organ). 



Okular, verzerrungsfreies ortho- 

 scopic eyepiece, distortion-free e. 

 Augenlinsen- eyelens of eyepiece. 

 Mess- micrometric eyepiece. 

 Sucher- focusing lens. 



Okul ar-auf steckglas eyepiece cor- 

 recting lens, -blende eyepiece 

 diameter, e. stop, -kollektiv 

 field lens of eyepiece, -muschel 

 eyepiece cup. -netzmikrometer 

 micrometer with reticle eyepiece. 



81 bildend oil forming, defiant, 

 -(es) Gas defiant gas 

 (ethylene). 



Old'ampfung oil damping (in vibrators), 

 o. dashpot. -f anger oil catch, o. 

 collector. 



ölhaltig containing oil, oleiferous. 



Öl harz oleoresin. 



ölig oily, oleaginous. 



olkarburiert oil-carburet ted. 



Öl-nute oil groove, oil run, oilway. 

 -pumpe oil pump; type of high- 

 vacuum pump, e.g., "Hyvac". 

 -Schalter, Impuls- oil-blast 

 circuit-breaker, -schi ef er oil shale. 



