Products

Product of the Month: Wireless MEMS Sensor for Glaucoma Diagnosis

STMicroelectronics (Geneva, Switzerland) has developed a wireless MEMS sensor that acts as a transducer, antenna, and mechanical support for the SENSIMED Triggerfish® continuous eye pressure monitor from Sensimed AG. The solution will enable better management of glaucoma patients via earlier diagnosis and treatment that is tailored to each patient. The solution is based on a “smart” contact lens that uses a tiny embedded strain gauge to monitor the curvature of the eye over a period of 24 hours, providing disease management data that is not obtainable using conventional ophthalmic equipment. The lens also contains an antenna, a tiny dedicated processing circuit, and an RF transmitter that communicate the measurements to a receiver worn around the patient's neck. Because it is powered via the received radio waves, it does not need to be connected to a battery.

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Vibration Cancellation System

Technical Manufacturing Corporation (Peabody, MA) has introduced the STACIS® iX LaserTable-Base™, a hybrid piezoelectric/ air active vibration cancellation system for optical tables. TMC’s patented STACIS technology incorporates piezoelectric actuators and inertial vibration sensors to cancel vibration at very low frequencies (1 to 3 Hz) for applications such as interferometry, single- and multiphoton microscopy, and scanning probe microscopy.

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VCSEL Chips

The Optoelectronics Company (Hertfordshire, UK) has introduced its SH85-4U001, 850nm VCSEL chips with a maximum output power of 20mW at an operating current of 50mA and operating voltage of 2.1V maximum. The chips feature a spectral bandwidth (RMS) of 0.85nm maximum and threshold current of 15mA typical.

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Laser Diodes

Alfalight (Madison, WI) has introduced the 808C laser diode series of 3.5W, 808nm devices in a 6-pin package with a 105μm/0.15 NA output fiber. They feature a lifetime of 20,000 hours. A 3W version integrates wavelength stabilization technology (WST) to offer 0.07 nm/°C wavelength stability. Additional new products include a 30W, 879nm combined power module (CPM III) with 685 μm/0.22NA output fiber connector, and a 5W, 793nm, 6-pin laser with 200 μm/0.15NA fiber.

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LED Light Tubes

Elma Electronic (Fremont, CA) offers the M-tube LED light tube system with new 5mm and 10mm diameter options. Other standard diameters include 6mm and 8mm. The light housings come in double-ended or optional single-ended configurations. Lengths of up to 2m are available. The light guides are rugged with a hard-plastic light bar tube that stays cool even when brightly lit.

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Dual CCD Camera

Hamamatsu Photonics (Bridgewater, NJ) has introduced the ORCAD2, a dual CCD camera that can capture simultaneous dual wavelength or multiple focal plane images. Each CCD captures a 1280 (H) x 960 (V) pixels field of view, and each CCD has independent exposure and gain settings, making it suitable for FRET and ratio imaging applications. One of the CCDs is adjustable via software to compensate for vertical, horizontal, and Z-axis registration. Each optical block can be adjusted for multiple objective choices as well. When the optical block is inserted into the camera, the position of the moveable CCD is automatically adjusted for the optical setup. It also features high sensitivity and low noise, vacuum-sealed chamber technology, and wide dynamic range. An IEEE1394b interface, 12-bit A/D converter, and various external trigger modes are also included.

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Green Laser

Z-LASER (Freiburg, Germany) now offers a high-performance green laser with output powers up to 300mW in a bench mountable package. It is compatible with M6 and ¼"-20 breadboards. The laser is available in two versions: a standard collimated version and a fiber-coupled laser.

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