Schlueter Â® -SCHLÃ¼TER. Schiene Â® -SCHLUETER schlÃ¼ter schiene is a special profile that finishes and protects the edges of. Tiled, surfaces however it can also be used in conjunction with other covering materials. and applications
A borescope (occasionally called a boroscope, though this spelling is non-standard) is an optical device consisting of a rigid or flexible tube with an eyepiece on one end, an objective lens on the other linked together by a relay optical system in between.igid borescopes are similar to fiberscopes but generally provide a superior image at lower cost compared to a flexible borescope. Rigid borescopes have the limitation that access to what is to be viewed must be in a straight line.
A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45-degree angle. This form of periscope, with the addition of two simple lenses, served for observation purposes in the trenches during World War I. Military personnel also use periscopes in some gun turrets and in armoured vehicles.