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High-Power LEDs

American Bright Optoelectronics Corp. (Chino, CA) has introduced the BWL-3B series of 3-watt, high-power LEDs in a 9 × 9-mm package that consists of multiple dice in a single multi-leaded package. This packaging allows for each die to be both independently addressable and assignable. The design allows for stage powering of the device in 1-watt increments, providing three separate flux intensities without the need for complex controllers or specialty drivers.

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Spectroscopic Reflectometer

HORIBA Jobin Yvon (Edison, NJ) offers the DigiScreen spectroscopic reflectometer capable of measuring film thickness deposited on a large-area glass substrate in less than one second. With a spectral range of 400 nm to 800 nm, the DigiScreen can measure film thickness from 100 nm to several microns, and accepts sample sizes up to 2.5 × 2.7 m. The sample is manually loaded on a vertical, large-area motorized stage tilted at an angle of 10°. A Quartz Tungsten Halogen (QTH) light source coupled to an optical fiber is focused onto the sample, giving a spot size of 2 mm in diameter. A second optical fiber collects the light reflected from the sample. A 2048-pixel CCD coupled with a spectrograph measures the reflectance of the sample. The system can characterize materials such as SiN, SiON, a-Si(n+), a-Si (HDR, LDR), LTPS, c-Si, Silane-based SiOx, and TEOS.

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Photo Integrated Circuits

Hamamatsu Corp. (Bridgewater, NJ) offers a transmitter-receiver pair of photo integrated circuits (ICs) for use in MOST-compliant automotive multimedia networks. The L10063-01 transmitter and S10064-01 receiver provide a maximum data communications rate of 50 Mbps over plastic optical fiber links. The transmitter offers an operating mode that reduces the optical output level by half, reducing power consumption. The receiver has a low-power-consumption “sleep mode” and can shift into normal operating mode by detecting a light trigger. The receiver also features a wide dynamic range and is immune to external noise. Both components are housed in a clear plastic package and have an operating temperature range of -40°C to +105°C. Signal transfer between the components is performed digitally via a TTL interface.

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Ethernet CCD Camera

The TM-1405GE from JAI PULNiX (San Jose, CA) is a high-resolution, 1.4-megapixel CCD camera. The interline transfer CCD permits full vertical and horizontal resolution with shutter speeds up to 1/16,000 sec. Asynchronous test, combined with a no-delay, pulse-width controlled shutter, provides flexible triggering and exposure control for machine vision applications. The camera is combined with a standard 1/2" image sensor and captures 30 frames per second at full resolution of 1392 × 1040. The camera features 100-meter cables, standard ports, and a look-up table that allows full dynamic range control of the CCD by externally selectable knee slopes. The camera has both digital Gigabit Ethernet and analog output for interfacing with other equipment.

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Pulsed Fiber Laser

Lumics (Berlin, Germany) has introduced the LU1060F400 pulsed fiber laser that offers up to 0.8 mJ pulse energy with average power of 4W. It is a short-pulse Ytterbium fiber laser in Master Oscillator Power Amplifier (MOPA) configuration. The laser operation mode can be changed by selecting customer-specific parameters, such as output power, pulse energy, repetition rate, and pulse width, via a conventional USB interface. The laser emits at a wavelength from 1060 to 1080 nm from a fiber with a 25-um core. The fiber is a standard length of 1.5 m, terminated with an FC/APC connector. An optional collimator and focuser, as well as metal armored cable, are available.

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Image Analysis Software

Sensors Unlimited, Goodrich Corp. (Princeton, NJ) has released SUI Image Analysis Software, which allows full operational control of the high-speed windowing functions on the SU320MSW-1.7RT Shortwave Infrared (SWIR) Windowed Snapshot MiniCamera, and the SU640SDWH-1.7RT High-Resolution SWIR Windowing Camera. The standalone, executable software options include full control of four preset regions of interest or windows, in the center of the frame. Variable windows can be established through the software interface. The user may select position, size, and shapes, and may perform image enhancements on captured images and save the images in a movie format with or without NUCs and/or enhancements.

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Repairing Fractured Bones by Use of Bioabsorbable Composites

Less surgery would be necessary, and full strength would be restored sooner. A proposed method of surgical repair of fractured bones would incorporate recent and future advances in the art of composite materials. The composite materials used in this method would be biocompatible and at least partly bioabsorbable: that is, during the healing process following surgery, they would be wholly or at least partly absorbed into the bones and other tissues in which they were implanted. Relative to the traditional method, the proposed method would involve less surgery, pose less of a risk of infection, provide for better transfer of loads across fracture sites, and thereby promote better healing while reducing the need for immobilization by casts and other external devices. One requirement that both the traditional and proposed methods must satisfy is to fix the multiple segments of a broken bone in the correct relative positions. Mechanical fixing techniques used in the traditional method include the use of plates spanning the fracture site and secured to the bone by screws, serving of wire along the bone across the fracture site, insertion of metallic intramedullary rods through the hollow portion of the fractured bone, and/or inserting transverse rods through the bone, muscle, and skin to stabilize the fractured members. After the bone heals, a second surgical operation is needed to remove the mechanical fixture(s). In the proposed method, there would be no need for a second surgical operation.

Posted in: Medical, Briefs, TSP

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