Feld, Lösch" 



91 



Fenster 



field, paraxial f., f. parallel 

 to axis. Lösch- magnetic ob- 

 literating field (in n:;agnetic 

 sound recording, telegraphone 

 and magnetophone). Mittel- cen- 

 tral field (of vision). Prüf- 

 test field; proving ground (or- 

 dinance). Quer- transverse or 

 cross (magnetic) field. Rück- 

 melde- revertive signal panel. 

 Saug- suction or positive field, 

 field vkhich draws away. Scharfen- 

 focal field. Spiegel- revertive 

 signal panel, check-back position 

 indicator p. (giving readings of 

 rem.ote instruments). Stosspriif- 

 potential impact or impulse test- 

 ing field. Stör- stray field, 

 interference f. Tasten- keyboard. 

 Teilchen- particle field. Ver- 

 gleichs- matching field (in photo- 

 metry). Versuchs- proving ground, 

 field for making tests or experi- 

 ments. Wellen- wave field. 



Pel d-ausschnitt, Bild- image area 

 (on scanning disk), -beleuchtung, 

 Hell- bright ground illuniination 

 (micr. ) -bild field pattern, 

 configuration or map (made in 

 electrolytic tank), -blende 

 field stop, -durchgriff action 

 of field through aperture lens 

 (el. opt.), -ebenungsl inse field 

 flattener (opt.), -elektronen 

 field electrons (resulting from 

 emission caused by intense elec- 

 tric f.). -elektronenemission 

 auto-electronic, cold or field 

 emission (and current caused 

 thereby), -erregerspule field 

 (exciting) coil (in electro- 

 dynamic loudspeaker). 



feldfrei field-free. 



Pel d-f unkentelegraphie military 

 service radio telegraphy, non- 

 civilian wireless, -generator, 

 Brems- negative transconductance 

 generator or oscillator (using 

 retarding field circuit), posi- 

 tive grid 0. -krümmung, Bi Id- 

 curvature of image field. 



-kriJmmungsKorrektur field flat- 

 tening, -kriimmungsverzerrung dis- 

 tortion due to curvature or lack 

 of flatness, curvilinear distor- 

 tion, -linse field lens (anterior 

 or front lens in telescope and in 

 microscope), -messung plotting 

 field map or configuration of 

 electrostatic field (in electo- 

 lytic tank); land surveying or 

 rreasurement. -profil field pattern. 

 -röhre, Zwei- drift tube workin<^ 

 with two fields, -spule field coil, 

 magnetizing c. -stärKenprof i 1 

 field pattern, -stecher field- 

 glass magnifier, -strom field cur- 

 rent (emission of electrons due 

 to an electric field), -tiefe, 

 Schärfen;- depth of focus, d. of 

 definition, d. of field, -trjch- 

 -tertheorift field funnel theory. 

 -verlauf field map, f. pattern, f. 

 configuration, -welle field wave. 

 -Wölbung, Bild- curvature of image 

 field, lack of flatness of image 

 field, -zerleger, bild- picture 

 scanner, dissector (of B'arnsworth), 

 p. exploring means. 



Pell, Trommel- drumhead; tympanic 

 membrane, tympanum, eardrum. 



Pel sol petroleum. 



Fenster projection aperture (film 

 projection); window (in envelope 

 of a cell, iconoscope, etc. ); 

 bezel (in casing or panel of 

 radio apparatus). 



Fenster, Andruck- pressure plate or 

 gate (m.p.). Belichtungs- aper- 

 ture (in aperture plate), photo- 

 cell window. Beobachtungs- bezel, 

 observation window, peephole. 

 Bild- picture gate, aperture or 

 trap; range-finder (m.p.). Bild-, 

 mit zwei Ausschnitten film gate 

 with two frames. Druck- pressure 

 plate or gate (film). Film- film 

 gate (of projector), film trap. 

 Kopier- printing plane, p. station. 

 Pendel- internal pressure plate. 

 Projektions- projection aperture. 

 Rollen- roller film gate. Ton- 



