Beam Delivery Systems

Beam Delivery Systems

The U.S. Laser beam delivery systems are complete packages designed to be integrated with existing laser systems. The optical system design permits the focal planes of the laser and the CCTV system to be aligned coplanar, allowing accurate focus adjustment using the visual image. An adjustable cross hair is provided as a visual indication of the actual spot position, which is especially helpful when using invisible laser beams. Systems are provided completely assembled, and include rigid mechanical structure, CCD closed circuit TV camera and monitor, precision focusing barrel, computer designed multi-element objective lens, upcollimator assembly, dichroic mirror, and all necessary CCTV camera optics. Systems are completely wired, and feature all necessary interlocks and emission eminent indicator light, and are ready to be integrated with a CDRH compatible laser system.

Two versions of the system are available, one which bolts directly to the U.S. Laser optical rail (or others that are compatible). The second plate mounted version is designed to be mounted to a common mounting plate on which the laser and optical system are mounted. Various upcollimator ratios and objective lens focal lengths are available, as well as coatings for appropriate laser wavelengths. A dual CCTV camera version is also available where two different magnification levels are desirable.

For further information on the U.S. Laser Beam Delivery Systems, contact us for our separate beam delivery brochure.

Related Products: Objective Lenses, Upcollimators, Dichroic Beamsplitters, CCTV Systems, Fiber Optic Beam Delivery

Focusing Barrels

The U.S. Laser focusing barrel is designed to hold the system objective lens, and provide precise focus adjustment. The focusing barrel is precision machined to provide 1" of fine focusing travel, and an additional 2" of coarse focus. Fine adjustment is obtained by rotating the outer knurled barrel, which move the lens .0003" per degree of rotation. To prevent spot wander, the lens is not rotated during focusing. Coarse focus is adjusted by loosening the lock ring, and manually adjusting the coarse focusing sleeve. The objective lens is threaded into the focusing barrel using standard 32 pitch optical threads. A mounting flange is provided to facilitate mounting. This is the same focusing barrel used in the Model N1001 Beam Delivery Systems.

Related Product: Objective Lenses

Gas Nozzles

A series of gas nozzles is available for use with the U.S. Laser conventional beam delivery systems (Model N1001). The series includes low pressure nozzles for inert gas delivery, used primarily to deliver shield gas for welding, and a nozzle for high velocity pressurized gas delivery for use in laser cutting. The inert gas nozzle attaches directly to exit of the focusing barrel, (Model N1027), and is provided with interchangeable orifices. Cutting nozzles are also provided with a selection of appropriately sized orifices, and are fully adjustable in x-y position, as well as orifice position in relation to the lens focus plane (standoff distance). See the fiber optics section for nozzles for use with fiber optic beam delivery systems, and the gas scavenging nozzle section with nozzles combining vacuum and pressure.

Scavenging Nozzles

Scavenging nozzles are design with a central pressurized gas delivery section to force debris from the cut or scribe area, and an annular vacuum section, to collect the debris displaced by the pressure section.  The scavenging nozzles have adjustable orifice centering to allow precise alignment of the beam center to the center of the orifice, and come with a series of interchangeable nozzle orifices. The pressure section is isolated from the objective lens with a replaceable A/R coated window. Vacuum section standoff distance is also adjustable. This nozzle is desined to be mounted directly to the Model 1027 focusing barrel, and is available for use with 40mm or 60mm lenses. For suitability of use for other applications, contact the USL sales department.

Related Products: Gas Nozzles for Fiber Optic Beam Delivery