An optical component protector, comprising a transparent plate, configured to be mounted in front of an optical component to be protected and a plenum chamber, connected to a top edge of a transparent plate wherein the plenum chamber is configured to receive a supply of gas from a gas supply and provide a curtain of the gas across a surface of the transparent plate that is on an opposite side of the transparent plate from the optical component.

A method and apparatus for a Coanda effect-induced tube settler assembly lamellae cleaning system for raw water or semi-potable drinking water treatment clarifier. A tangential compressed air source is injected from compressed air tubes near J-shaped support deflector beams. The combined high pressure air from a high pressure fixed air grid and waste water fluid flow stream in a main waste water stream to be clarified, creates a Coanda-effect fluid inducing turbulence when used in conjunction with cross-sectionally J-shaped deflector beams. This combined fluid flowstream provides hydrodynamic cleaning pressure axially through the tubes' lumen of the tube settler assembly within a clarifier cell basin enclosure.

An optical component protector, comprising a transparent plate, configured to be mounted in front of an optical component to be protected and a plenum chamber, connected to a top edge of a transparent plate wherein the plenum chamber is configured to receive a supply of gas from a gas supply and provide a curtain of the gas across a surface of the transparent plate that is on an opposite side of the transparent plate from the optical component.

An optical component protector, comprising a transparent plate, configured to be mounted in front of an optical component to be protected and a plenum chamber, connected to a top edge of a transparent plate wherein the plenum chamber is configured to receive a supply of gas from a gas supply and provide a curtain of the gas across a surface of the transparent plate that is on an opposite side of the transparent plate from the optical component.

A treatment head for treating a surface area of a substrate includes a housing having a main surface configured to be arranged adjacent to and facing the surface area of the substrate to be treated. An exhaust opening in the main surface of the housing is connectable to an exhaust device via an exhaust gas path formed at least in part in the housing. A radiative heater is arranged in the housing to emit heat radiation through a radiation opening in the main surface. A plasma source is arranged in the housing to emit a plasma jet through a plasma exit opening in the main surface. An outlet opening in the main surface of the housing is connectable to a gas source via an gas path formed at least in part in the housing. The centers of the exhaust opening, the radiation opening, the plasma exit opening, and the outlet opening are arranged in the above order along a first direction of the main surface.

A cleaning device (100) for cleaning fiber optic end faces comprises a dispensing nozzle (104) configured to discharge a jet column (118) generated by the Coanda effect with intermittent injection of a cleaning solvent into the jet column (118). The method comprises impinging the jet column (118) onto a fiber optic end face (120) while maintaining a stand-off distance from the end face being cleaned.

A treatment head for treating a surface area of a substrate includes a housing having a main surface configured to be arranged adjacent to and facing the surface area of the substrate to be treated. An exhaust opening in the main surface of the housing is connectable to an exhaust device via an exhaust gas path formed at least in part in the housing. A radiative heater is arranged in the housing to emit heat radiation through a radiation opening in the main surface. A plasma source is arranged in the housing to emit a plasma jet through a plasma exit opening in the main surface. An outlet opening in the main surface of the housing is connectable to a gas source via an gas path formed at least in part in the housing. The centers of the exhaust opening, the radiation opening, the plasma exit opening, and the outlet opening are arranged in the above order along a first direction of the main surface.

An optical component protector, comprising a transparent plate, configured to be mounted in front of an optical component to be protected and a plenum chamber, connected to a top edge of a transparent plate wherein the plenum chamber is configured to receive a supply of gas from a gas supply and provide a curtain of the gas across a surface of the transparent plate that is on an opposite side of the transparent plate from the optical component.

A cleaning device (100) for cleaning fiber optic end faces comprises a dispensing nozzle (104) configured to discharge a jet column (118) generated by the Coanda effect with intermittent injection of a cleaning solvent into the jet column (118). The method comprises impinging the jet column (118) onto a fiber optic end face (120) while maintaining a stand-off distance from the end face being cleaned.

A method and apparatus for a Coanda effect-induced tube settler assembly lamellae cleaning system for raw water or semi-potable drinking water treatment clarifier. A tangential compressed air source is injected from compressed air tubes near J-shaped support deflector beams. The combined high pressure air from a high pressure fixed air grid and waste water fluid flow stream in a main waste water stream to be clarified, creates a Coanda-effect fluid inducing turbulence when used in conjunction with cross-sectionally J-shaped deflector beams. This combined fluid flowstream provides hydrodynamic cleaning pressure axially through the tubes' lumen of the tube settler assembly within a clarifier cell basin enclosure.