Photophysik 



2I>I 



Platte 



evaluation or recording, -physik 

 photo-physics, -ström photo-cell 

 current, -vol teffekt photo- 

 voltaic effect (as in a cuprous- 

 oxide cell ). 



Photozelle photo-electric cell 

 (photo-conductive, photo- voltaic 

 or photo-emissive), electric eye. 

 Mikro- globule of mosaic screen. 



Photozellen-kabel low-capacity 

 shielded cable between photo- 

 electric cell and amplifier of 

 the video cable, co- axial or 

 concentric cable type. -Verstärker 

 electron multiplier phototube; 

 photo-cell amplifier, -vorlicht 

 priming or bias illumination. 



physikalisch-chemisch physical- 

 chemical, physico-c. 



u Glied (n-Glied) pi in) type sec- 

 tion, filter mesh or network m. 



Piccoloflöte piccolo flute. 



Pickel bi 1 dung (corrosion) pitting (of 

 metal). 



piezo-el ektr i scher Modul piezo- 

 electric modulus. 



Piezo-kristal 1 piezo-electric crystal, 

 -quarzzelle supersonic light valve 

 (predicated on Brillouin and Debye- 

 Sears effect). 



Pikkelflöte piccolo flute. 



Pilgerschr i ttverfahren Mannesmann, 

 Perrins or reciprocating rolling 

 process. 



Pi lie, Getter- getter tab, g. pill, g. 

 patch. Gleichrichter- oxide or 

 metal rectifier of reduced size 

 (say, 1 sq. cm), Westector r. 



Pi Iz-isol ator mushroom, petticoat or 

 umbrella insulator, -lautsprecher 

 omnidirectional (360 degree) ex- 

 ponential horn loudspeaker or 

 sound radiator (mostly mounted on 

 a pole top). 



Pinne pin, peg, tack; peen (of a 

 hammer) . 



Pinseldetektor cat whisker detector. 



Pinzette pincette, tweezers, fore- 

 ceps, nippers, pincers. 



Pi stole, Spritz- spray gun, s. pistol. 



PI tot röhre Pi tot tube (to determine 



fluid or liquid velocity of flow). 



PI an,Bedrahtungs- wiring diagram. 

 -biegeversuch plane bending test. 



Planck's Wirkungsquantum Planck's 

 constant (quantum of action). 



Plandrehen face planing. 



Planetangetriebe planetary gear, 

 epicyclic g. (train). 



Plangitter plane grating (for light 

 dispersion). 



pi anieren plane, planish, smooth, 

 level, even. 



pi an- konkav plano-concave, -konvex 

 plano-convex, -liegen in 

 Fokusebene flattened in focal 

 plane, -massig systematic, 

 methodical, according to plan. 

 -parallele Platte plane-parallel 

 plate, -schleifen surface- 

 grind, -symmetrisch pi ani sym- 

 metric. 



Plasma, Rest- residual electrons, 

 plasma (region without resultant 

 charge) . 



Plastik plastic, stereoscopic or 

 relief effect (pictures). Bi Id- 

 plastic or relief effect; form of 

 telev. picture distortion (consist- 

 ing of multiple contours of di- 

 minishing intensity giving pseudo 

 or erroneous three-dimensional ap- 

 pearance). 



pi ast i sch(e)Bi Idwirkung illusion of 

 depth (of a picture or telev. 

 image), -(er) Film stereoscopic 

 film, -(es) Fl lessen viscous flow. 

 -(e) Verformung plastic deforma- 

 tion, p. working. 



Platine plate, sheet bar, p. slab-, p. 

 bar. 



Platin-mohr platinum black, -papier 

 platinotype paper. 



Plationröhre amplifier tube with 

 filament disposed between control 

 grid and plate (with low internal 

 resistance, one model with photo- 

 electric g. ) 



Plättchen lamella, small plate, 

 platelet, scale. 



Platte plate, sheet, slab, lamina, 

 lamination, leaf (of a table). 



