3D MODEL SPECS
File Format: Lightwave 2018.x, OBJ, FBX, Blender 2.79
Geometry: Polygon mesh
Polygons number: 45k
UV mapping: Yes
HISTORICAL INFORMATIONS - A coincidence rangefinder was a type of rangefinder that used mechanical and optical principles to allow an operator to determine the distance to a visible object. Coincidence rangefinders were important elements of fire control systems for long-range naval guns, land-based coastal artillery, and anti-aircraft guns during the World War Two The device consists of a long tube, with two lenses facing forwards at each end, and an operator eyepiece in the center. Two prism wedges which, when aligned result in no deviation of the light, are inserted into the light path of one of the two lenses. By rotating the prisms in opposite directions using a differential gear, a degree of horizontal displacement of the image can be achieved.