Ober-banden overtone absorption bands, 

 -begriff introductory part of Ger- 

 man patent claims setting forth 

 prior art, broad class and nature 

 of invention and disclosure, 

 -beleuchter chief light electri- 

 cian; scaffold or top light con- 

 troller (studio). 



Oberf räche, gasbehaftete gas-con- 

 taninated surface, s. with ad- 

 sorbed gas. -, sp iegelnde specular 

 surface. -, vertonte sound-im- 

 pressed surface, surface or area 

 bearing sound track. 



Oberf l'ächen-ableitung surface leakage. 

 -Abtaster surface analyzer, 

 -beladung (mit Hg) activation, 

 sensitization or charging of a 

 surface (with Hg). -effekt 

 surface effect (of photo-cathode), 

 -einhelt unit of area. 



oberf rächengerichtet surface narmal. 



Oberf 1 ächen-härtung case-hardening 

 (metals), surface cementing. 

 -integral integral taken over a 

 surface, -normale surface normal, 

 -phase surface phase, -schiebt 

 surface layer^ s. barrier. 

 -Spannung surface tension, 

 -spannungstnesser od. 

 -spannungsprüfer, nach 

 Abreissmethode surface tensiometer 

 of adhesion-balance type, 

 -taster surface analyzer (to 

 measure irregularities), -wider- 

 stand surface resistance (of in- 

 sulation); skin-effect resistance 

 (in a-c flow), -wirkung surface 

 action; skin effect; surface work 

 (cryst. ) 



oberflächlich superficial. 



Oberharmonische harmonic, higher h. 

 -.dreifache third harmohic, triple 

 h. -, gerade even harmonic. -, un- 

 gerade odd harmonic. 



Ober-leiter, künstlerischer art su- 



pervisor, -licht overhead scoop, 

 scaffold light, skylight, -strich 

 permanent maximum current or car- 

 rier, peak carrier amplitude, maxi- 

 mum or black-level picture signal 

 (telev. ) -taste sharp (mus.). 

 -ton overtone (often a harmonic), 

 upper partial (NOTE: harmonics and 

 overtones are partials of a fre- 

 quency above fundamental, a partial 

 being a pure-note component of a 

 sound or complex note). 



Objekt, Übertragungs- object to be 

 televised or scanned, lintersuchungs- 

 test specimen, t. sample, t. piece, 

 -glas slide, mount (micr. ) 



Objektiv (cf Linse, Lupe, Glas) 

 objective, object glass, lens (re- 

 ceiving first light from object), 

 -jhöchstl ichtstarkes ultra-rapid 

 or ultra-high-speed objective or 

 lens. -, kurzbrennweit iges short- 

 focus lens. -, 1 ichtstarkes high- 

 speed objective. -, zusammen- 

 gesprengtes broken-contact (un- 

 ceroented) lens or objective. 

 Aufzeichnungs- recording objective. 

 Fern- telephoto lens. Immersions- 

 immersion objective (electron 

 microscope). 



Objekt iv-brett lens or objective 

 panel or board, -deckel lens 

 cap. -fas sung objective or lens 

 mount or barrel, -gewindes, 

 Ansatzfläche des screw shoulder or 

 s. collar of objective mount, 

 -halter lens holder, -höhe 

 height of lens or objective. 

 -Öffnung, numerische numerical 

 aperture of objective, 

 -offnungswinkel angular aperture 

 of objective, -ring lens adapter. 

 -satz set of lenses, lens com- 

 bination, -spule objective coil. 

 -Wechsler revolving nosepiece 

 (micr.) 



