16 Kilinskiego Str, 90-209 Lodz Office (+48 42) 632 54 64 632 10 28 fax (+48 42) 633 58 47 prexer@lodz.pl

Observation devices with wide angle of view PREXER Co. is at present working on new generation of periscopes with a wide angle of view and whose elements formally made of classical glass have been replaced with plastics. The modernisation is worked on to match the needs of armoured transporters. The periscopes in which prisms are made of organic glass apart from having a wide angle of view in both planes are also much lighter than the periscopes in which prisms are made of optic glass (by about 50%). This is an essential feature bearing in mind the fact that the mass of observation devices is of extreme importance, particularly as far as afloat transporters are concerned. Technical data OPO-120F OPO-125F OPO-130F Observation angle in the horizon plane [°] 150 160 160 Observation angle in the vertical plane [°] 50 50 45 Full angle of view in horizon plane [°] 80 75 65 Full angle of view in vertical plane [°] 18 18 11 Periscoposity [mm] 120 125 130 Transmission of visible light [%] 30 30 30 Absorption of laser light with wavelenght [nm] 800-1200 800-1200 800-1200 Optical density (1064 nm) min. 5 min. 5 min. 5 Casing aluminium aluminium aluminium Temperature range [°C] -30 ... +50 (max. -40...+65) -40 ... +60 (max. -54...+71) -40 ... +60 (max. -54...+71) Overall dimensions and mass Full height [mm] 205 204 217 Width of the top window [mm] 375 205 365 Height of the upper part of periscope [mm] 111 116 133 Width of the bottom window [mm] 276 205 262 Height of the lower part of periscope [mm] 77 81 74 Mass [kg] 6 3,5 5,5 Last changed 16.05.2006,