New from Coherent Inc. (Santa Clara, CA), Libra is a versatile, one-box regenerative amplifier designed for ultrafast materials processing and scientific applications. Libra delivers 1 W of 800nm output at repetition rates of 1 or 5 kHz. It also can pump multiple optical parametric amplifiers, providing wavelength tunability from deep UV to mid-IR. The product's integrated design incorporates the Vitesse as a seed laser and the Evolution-15 as its pump laser. The laser head measures 44 × 24 × 9.5 inches. According to the manufacturer, the product combines a simple user interface and hands-off operation with high-quality output and the convenience of a compact, one-box package to enable users to focus on manufacturing rather than on the laser itself.
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The 40-page, color brochure entitled "Automation Solutions for the Automotive, Machine Tool, Assembly, and Packaging Industries," from Aerotech Inc. (Pittsburgh, PA) presents the company's motion control and positioning systems and components developed specifically for these industries. Products include the Automation 3200 digital automation platform, linear and rotary stages, servomotors and drives, robots, actuators, and industry-specific motion systems.
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Anti-backlash lead screws
The NTB series anti-backlash lead screw assemblies from Kerk Motion Products (Hollis, NH) are designed for high load applications. Using the company's patented take up mechanism, the new series maintains axial stiffness while system torque is held to a minimum, providing smooth operation and long life throughout its load and speed range. The nut is manufactured with a self-lubricating polyacetal designed to run efficiently on the company's precision rolled shafting. The screws are 303 stainless steel and are available with a long-life TFE coating.
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A true surface-mountable packaged photodiode from Three Five Compounds Inc. (New York, NY) has a super-low profile (1.1 mm) and an overall dimension of 5 × 4 × 1.1 mm. It can accept a PIN photodiode chip with an active area up to 10 mm square. The device comes in three versions: standard clear encapsulation lens for responsivity from visible to 1000 nm; a red encapsulant lens for applications that are required to filter out visible ambient light interference; and a black encapsulant lens for application where higher responsivity in the infrared region is required.
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Hole shaping module
The Tumbling Elephant hole shaping module from Arges-USA (West Springfield, MA) generates unique beam angles to create complex hole shapes that cannot be produced by conventional methods. The company's InScript software is instrumental in providing this capability. The company also offers high-performance micromachining tools for complex laser processes serving wavelengths from 193 nm to 10.6 µm.
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Used for 3D non-contact surface profiling, the MicroMesure II system from Armstrong Optical Ltd. (Chelveston, Northants, UK) offers an optional ..mechanical turret system to make the changeover from one sensor to another simple and automatic. This allows for four sensors, two cameras, or complimentary third-party sensors to be utilized during a profiling run without user interaction. Optical encoders on the x- and y-scanning axes ensure higher positional accuracy during scanning and make scanning faster because data acquisition occurs during both directions of scanning, according to the company. SurfaceMap system control software has been upgraded to include a rapid prescan and automatic surface search functions.
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The MicroLine 400 critical dimension measurement system from Micro-Metric Inc. (San Jose, CA) is available with Windows 2000 capability. The product automatically measures linewidth, overlay, and other critical features on wafers and photomasks. It measures features from 0.5 micron to 400 microns in size. Measurement repeatability is 4 nm (1s) or better with a 100X objective lens. A motorized X-Y stage provides <25 microns stage positional accuracy. A vibration isolation table is standard.
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New from Spectra-Physics (Mountain View, CA) is the DisQ-Mark Q-switched, thin-disk laser for marking and precision machining applications. This diode-pumped Nd:YAG laser generates up to eight watts of near-infrared output with beam quality of M2<4 and pulse repetition rates up to 50 kHz. Reportedly, the laser can create surface marks on many organic materials, including most plastics, as well as on a variety of metals, including aluminum and anodized aluminum. According to the company, thin-disk technology results in an air-cooled architecture that is simpler, easier to integrate, more power efficient, lower cost, and more rugged than conventional diode-pumped lasers.
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Schneeberger Inc. (Bedford, MA) offers two new versions of the Advanced Measuring System—AMSA Generation 3-A (for Roller Monorail MR) and 4-A (for Ball Monorail BM). AMSA 3-A and AMSA 4-A offer a space-saving system that can be used in restricted settings. Both versions enable the addition of the SPL lubrication cartridge and wipers that further eliminate the potential of contamination from oils, greases, and coolants.
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Laser cutting guide
The "Laser Cutting Guide for Manufacturing," offered by the Laser Institute of America (Orlando, FL) presents practical information and troubleshooting and design tools from a quality manufacturing perspective. The guide provides a roadmap for developing, implementing, operating, and maintaining a laser-cutting manufacturing enterprise. It focuses on metal cutting of sheets, plates, tubes, and 3D shaped stampings.
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Based on the dynAXIS XS galvanometer scanners, the SCANcube 7, from Scanlab AG (Puchheim, Germany) is an ultra-compact scan head with 7mm aperture. It fits within the volume of a three-inch cube. The product is equipped with either an analog or digital interface and can be controlled via the company's RTC PC interface board or standalone board. The scan head is compatible with both compact and standard objectives.
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