Protection lasers

Optical coatings Laser protection Fiber optics Scanners Lenses Antireflection UV to IR windows X-ray windows Radomes... 

Thin fullerene films for laser protection can be obtained by incorporation or covalent attachment of fullerenes to transparent solid matrices. The optical limiting (OL) properties of Cgg originally detected in toluene solutions can be transferred to solid substrates without significant activity loss [27,143,144]. 

Reverse saturable absorption is another important nonlinear optical effect. Reverse saturable absorbers (RSAs) act as optical limiters by absorbing laser radiation. Therefore, they are particularly useful for laser protection, both civilian and military. Colorless infrared-absorbing RSAs which can absorb green laser radiation are especially important as they safeguard the eyes of pilots, tank commanders, etc. from enemy lasers [61],... 

Passive Laser Protection. Passive protection consists of ... 

E. 50 mm Binoculars and Other Optics. Soldiers are most vulnerable when using powered optics and staring at weapons systems using lasers or at distant objects where lasers could be employed. Optics concentrates the light increasing vulnerability and staring increases the opportunity for exposure. Many weapons systems have laser protection built into the optics. 

Optical coalings Laser protection Fiber optics X-ray windows Anti reflection UV to IR windows Radomes transparency firom UV through visible into IR good radiation resistance... 

Laser protection filters have already been discussed in Section 9.4.7. 

Hazardous Decomp. Prods. Sulfuryl and thionyl fluorides heated to decomp., emits highly toxic fumes of F and SOx Uses Dielectric insulating medium for high-voltage elec, and electronic equip. as tracer gas for ventilation measurements in occupied spaces lasers protective atmosphere for casting of magnesium alloys inert filler gas (multiply-glazed windows)... 

A transparent material for laser protection goggles that becomes opaque instantly as soon as laser radiation (coherent light) hits it. 

A class 3B laser poses hazards when eyes receive direct exposures. Diffuse reflections such as from paper or other matte surfaces are not harmful. Continuous lasers in the wavelength range from 315 nm to far infrared must limit to 0.5 W. For pulsed lasers between 400 and 700 nm, the limit is 30 mJ. Other limits apply to other wavelengths and to ultrashort pulsed lasers. Protective eyewear is typically required where direct viewing of a class 3B laser beam may occur. Class 3B lasers must be equipped with a key switch and a safety interlock. 

Use diffusely reflecting materials near the beam, where appropriate appropriate laser protective eyewear must be provided to all personnel within the laser controlled area. 

All personnel entering a Class IV area shall be adequately trained and provided with proper laser protective eyewear. 

Administrative and procedural controls are standard operating procedures, alignment procedures, limitations on spectators, and protective equipment. Protective equipment for laser safety generally means eye protection in the form of goggles or spectacles, clothing, barriers, and other devices designed for laser protection. 

Determine the maximum power density (intensity) lasers produce when workers are exposed to laser beams. Based on this knowledge, select lenses that protect against the maximum intensity. The selection of laser protection should depend upon the lasers in use and the operating conditions. Workers with exposure to laser beams must be furnished with suitable laser protection. 

ANSI Z136.7, Testing and Labeling of Laser Protective Equipment... 

---