Plastic optical fibers (POFs) with 2 mm-diameter are arranged in a chest silhouette in 1:20 reduced scale as a sensor and a beam from a small He-Ne laser is used for shooting and aiming practices. The locations and times of hitting points can be repeated after shooting. Optical fiber simulator for shooting and aiming practices has many advantages such as small, light, safe, reliable, low-cost, convenient to use and no restriction of environment and area. It can be used by recruits for shooting and aiming practices and has been put into use in many troops.
There are three know-hows in the drawing of plastic optical fibers with 36
nozzle die head: the design of 36 nozzle die head, the synchronous coating of 36
filaments and the 36 filament forming technology.
The most difficult problem to be solved in the drawing of plastic optical
fiber with 36 nozzle die head is the design of 36 nozzle die head. In other words,
the die head has direct influence on the drawing process. The second important
know-how is the techniques of synchronous coating of 36 filaments because the even
extent of the cladding (coating), the state of the core-cladding intersurface and
the thickness of the cladding have direct influence on the transmittance of the
plastic optical fibers, too. Careful design of the drawing procedure is another
important know-how in the manufacturing of plastic optical fibers.
To use the 36 nozzle die head to manufacture plastic optical fibers, not only
the efficiency of production can be highly increased and the cost can be largely
decreased, but also the technology makes it much easier for us to produce plastic
optical fiber's light guide and image guide directly.
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