Products

Technical Paper on Pixel Sub-Stepping

PI (Auburn, MA) has published a paper on image resolution enhancement and image stabilization for electronic imaging sensors based on fast piezo actuation. The paper explains different piezoelectric motion principles such as flexure mechanisms and ultrasonic motors. Traditionally, increasing the resolution of common imaging detectors has required an increase of chip size or reduction of pixel size, both of which are undesirable options. With pixel sub-stepping, the recording area is moved on predefined paths with a defined frequency. The”dithering,” where the travel is less than the size of a pixel, causes the pixel to be exposed several times on the recording area, producing a virtual “pixel multiplier” that can significantly improve the resolution without negative side effects.

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Optical Coatings for Plastics

Deposition Sciences (Santa Rosa, CA) has developed optical thin film coatings to be deposited on materials such as Ultem®, Zeonex®, and a variety of polycarbonate plastics. These rugged coatings operate from the visible through the infrared spectral wavelengths and are suitable for diverse applications where lightweight and low cost optics are specified, such as LED lighting and medical devices. Other applications include UAV optics and photovoltaic solar systems.

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High-Speed Megapixel Camera

Photron (San Diego, CA) has developed a new imaging system, the Fastcam SA5, which delivers 7,500 fps at 1024 × 1000 megapixel resolution. The camera features a 12-bit monochrome (36-bit RGB color) sensor with twenty micron square pixels, delivering color fidelity and dynamic range. This standalone, one-piece system has an ISO/ASA of 6400 as tested against ISO 12232. The Fastcam SA5 with 1-microsecond global shuttering features a 5-inch LCD screen and is available in three memory configurations: 8 GB (up to .75 sec record time at 7,500 fps and full resolution); 16 GB (up to 1.49 sec at 7,500 fps and full resolution); 32 GB (up to 2.98 sec at 7,500 fps, 1K × 1K). Applications include PIV, inkjet, combustion, fluid dynamics, cavitation, materials research, and aerospace.

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Silica Fiber Bundles for Spectrometer Systems

CeramOptec (East Longmeadow, MA) has increased the temperature spec on its drop-in replacement silica fiber bundles for spectrometer systems. Applications with unusually high or low temperatures can use these fibers to work at a temperature range of -190°C to 600°C. CeramOptec uses a patented PCVD process to create high-grade specialty fibers with a wide range of profiles and dopants, numerical apertures from 0.06 to 0.66, and high radiation resistance levels.

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Low-Fluorescence Optics

Optimax (Ontario, NY) has the manufacturing expertise, optics cleaning and coating technology to produce low-fluorescence optical components. These lenses are useful for deep ultraviolet (DUV) and low signal to noise applications in the medical and semiconductor markets.

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Near-Infrared Bandpass Filters

A new series of bandpass filters from Semrock (Rochester, NY) can be applied to the near-infrared wavelength range. These hard-coated filters are keyed to popular laser lines in the 1500-1600nm region. Applications include use as laser source clean-up filters and detection filters that pass particular laser wavelengths and virtually eliminate background over the full InGaAs detector range (850-1750nm). They are optimized for “retina-safe” lasers in the 1.5μm wavelength range.

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Q-Switched 800-Watt DPSS YAG Laser

Lee Laser (Orlando, FL) has developed a new, 800-Watt CW Nd:YAG laser that is capable of Q-switched performance in excess of 600 watts average output power at a 10-kHz pulse rate. The short pulse width capability is less than 70ns at 10 kHz without risk of damage to the internal optical elements. Pulse instability less than 8 percent peak-peak has been demonstrated. The laser’s electrical power consumption is 10 kW. Applications include deep marking and engraving, cutting of hard materials, flat-panel display (FPD) manufacture, and laser patterning for LCD manufacture.

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