Products

LEDs

OSRAM Opto Semiconductors’ (San Jose, CA) Golden DRAGON LEDs offer bright daytime running light and low energy consumption. While thin-film technology ensures that almost all the light produced in the semiconductor chip is at the surface, a low forward voltage reduces the amount of power the LED needs. The company has added its ARGUS lens system from radial light-emitting diodes and adapted it to SMT LEDs (Surface Mounted Technology) such as the Golden DRAGON ARGUS. All four LED chips are manufactured in thin-film technology and have a correspondingly high luminous efficacy. Displays backlit with OSRAM LEDs do not need active cooling because the system does not exceed 60 °C. The LEDs contain no lead or mercury and comply with RoHS guidelines. They are also vibration-proof and shockproof and have a life of more than 50,000 hours.

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Violet Laser Diode

Photonic Products (Hertsfordshire, UK) offers a lead-free, blue-violet wavelength (405 nm) laser diode from Sanyo, the DL-5146-152 405 nm. The device is a 35-mW CW, (50-mW pulsed) laser diode that incorporates an internal monitor photodiode to control device output. Designed for applications where a stable, controlled output is critical, such as biomedical instrumentation, medical imaging, fluorescence sensing, spectroscopy, and microscopy, the DL-5146-152 comes in a 5.6-mm package with M-type common cathode pin configuration. The DL-5146-152 laser diode has a low threshold current of 38 mA, typical operating current of 75 mA, operating voltage of 5.6 V, threshold voltage of 4.8 V, monitoring output current of 0.2 mA, laser reverse voltage of 2 V and differential efficiency of 0.9 mW/mA at a visible wavelength of 405 nm. The operating temperature range is 0 °C to +60 °C.

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High-Speed CMOS Camera

The Cooke Corp.’s (Romulus, MI) pco.1200hs camera is a high-speed, 10-bit CMOS camera with integrated 1 GB, 2 GB, or 4 GB of RAM memory that enables image recording at rates up 1 GB/s. Designed for high-speed camera applications such as material testing, external crash tests, and super slow-motion movie clips, the camera system features a resolution of 1280 × 1024 pixels, low-noise electronics, and external power supply. Data interfaces include IEEE 1394, CameraLink, and 10/100 Ethernet. Exposure times range from 1 μs (50 ns optional) to 5 s. Optional Camware software allows the user to remotely control camera functions and image acquisition, as well as archive images in various file formats. Camware operates in either single mode or with built-in recorder functions, and comes with drivers for popular third-party software packages.

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Galvanometer Scan Head

Nutfield Technology (Windham, NH) has introduced the XLR8-15 2-axis packaged scan head, the fastest 15-mm head in its class, according to the manufacturer. The scan head is designed to ease integration and manufacturing associated issues with laser scanning systems by reducing the need for specialized tooling and highly skilled assemblers. The XLR8-15 features NTI’s QuantumScan-10 galvanometers with ceramic rotor technology for superior performance. Marking speeds of 400 characters per second are typical. The XLR8-15 also features high-quality hybrid/ceramic ball bearings for long operating life. XLR8-15 scan heads can be configured for a variety of laser wavelengths, and are available with digital and analog electrical interface options.

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Tunable Laser

Designed for optics testing, dBm Optics’ (Boulder, CO) Model 4200 Tunable Laser Source offers 2,000 nm/s tuning across 150 nm. A low-noise version is available for measurements requiring high dynamic range, such as the characterization of fiber-Bragg gratings. A high-power version, with greater than 8 dBm (6 mw) of output power across the entire tuning range, is also available. A variety of options, which can be built directly into the instrument, include wavelength reference, VOA, and polarization controller/scrambler. The 4200 comes with an easy-to-use color touch screen, or button operation. A computer can be used to set and monitor parameters through Ethernet, USB, and GPIB (IEEE 488).

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Laser Diode Drivers

Analog Modules (Longwood, FL) Model 772 pulsed laser diode driver is a highly efficient (>70 percent), compact (4.3 × 2.7 × 1.5"), lightweight (

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Product of the Month: Multi-Use LED Platform

PerkinElmer Elcos GmbH (Pfaffenhofen, Germany) offers the ACULED (All Color Ultrabright Light Emitting Diode) multiuse, multicolor LED platform for a variety of specialty lighting applications. The ACULED platform uses multi chip-on-board (COB) technology to provide a high-power light source. The close chip placement achieves an even white color mix. Precise multicolor mixing is achievable by adjusting each chip individually using one blue, one red, and two green power chips. Mixing is made possible because each LED has its own cathode and anode. The light sources operate as a Lambertian emitter with 120° aperture. ACULED is designed for operation in applications including vision systems, architectural lighting, and medical lighting.

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