Laser Focus World articles from October 2006

Laser Focus World archives from October 2006

Lasers in your eye.(editor's desk)
October 1, 2006... There's a certain irony to be found in the relationship between lasers and the human eye. While lasers can permanently blind someone, they can also restore or improve sight. In fact ophthalmology represents one of the most successful...

Temporary blindness is preferable to the alternative.(Letters)(Letter to the editor)
October 1, 2006... In "Pentagon deploys laser at Iraqi checkpoints" (July 2006, p. 51) you wrote about the laser device U.S. troops in Iraq are using to "temporarily bind" vehicle drivers who ignore warnings at checkpoints, and the protests of groups like Human...

Two groups create electrically injected InP hybrid lasers on silicon.(news breaks)
October 1, 2006... Two research groups have reported independent approaches to the fabrication of the first electrically injected indium phosphide (InP)-based diode lasers on silicon. Such lasers, if practical, would help to usher in low-cost but extremely rapid...

Nanosphere-embedded liquid crystals create tunable metamaterial.(news breaks)
October 1, 2006... Researchers are actively involved in the exploitation of electro-optic and nonlinear effects that produce zero-index and negative-index materials. By embedding aligned nematic liquid crystals with coated dielectric nanospheres, researchers at...

Flexible silicon expands application possibilities.(news breaks)
October 1, 2006... Single-crystal semiconductor materials such as silicon (Si) and gallium arsenide have previously been transferred to flexible polymers to create thin-film transistors (TFTs) on plastic; however, the process is limited and cumbersome....

Silica fiber achieves anomalous dispersion below 1300 nm.(news breaks)
October 1, 2006... Demonstrations of soliton propagation, pulse compression, and visible-superoontinuum generation all require optical fibers with anomalous dispersion--in other words, a dispersion greater than zero. Because material dispersion of conventional...

Interband-cascade laser needs only simple thermoelectric cooling.(news breaks)
October 1, 2006... Interband-cascade (IC) lasers are distinct from quantum-cascade (QC) lasers, which are intraband. Unlike QC lasers, no fast-phonon scattering is involved in IC lasers, resulting in very low threshold-current densities; in addition, the...

III-antimonide laser diodes are grown on CMOS-compatible silicon.(news breaks)
October 1, 2006... University of New Mexico (Albuquerque, NM) researchers have fabricated III-V laser diodes grown monolithically on an industry-standard CMOS-compatible silicon (Si) substrate in the (100) orientation operating under continuous-wave,...

Atom's recoil is sometimes less than photon's momentum.(news breaks)
October 1, 2006... Kurt Gibble, an associate professor of physics at Pennsylvania State University (University Park, PA), has uncovered a surprising characteristic of atoms absorbing photons in a laser beam; if the beam is focused, an atom near the center of the...

Optical detection enhances NMR imaging.(news breaks)
October 1, 2006... Researchers from Princeton University (Princeton, NJ) have found that polarized light from a solid-state laser can significantly improve the resolution and sensitivity of nuclear magnetic resonance (NMR) and could lead to real-time 2-D imaging...

Correction.(news breaks)(Correction notice)
October 1, 2006... The Newsbreak, "Nine-aperture coherently combined telescope is diffraction-limited" (August, p. 21) should have included the following information: The optomechanical design, procurement, assembly, and test of the Star-9 testbed, as well as the...

Anamorphic fiber circularizes elliptical beams.(MICROSTRUCTURED FIBERS)
October 1, 2006... For many applications, the elliptical beam emitted by a typical edge-emitting laser diode would be far more useful if it were circular. Reshaping a laser-diode beam is normally the province o anamorphic optics such as pairs of cylindrical...

'Artificial muscles' flex for color display.(optoelectronics: world news)
October 1, 2006... Scientists in the Nanotechnology Group at The Swiss Federal Institute of Technology Zurich (Zurich, Switzerland) have developed a tunable diffraction grating composed of soft electroactive polymer (EAP) actuators--also called "artificial...

'Lucky imaging' is no accident.(HIGH-SPEED IMAGERS)
October 1, 2006... One of the most important developments in ground-based astronomy in recent years has been the development of adaptive optics, which has raised the resolution of terrestrial telescopes to near that of the Hubble Space Telescope at a fraction of...

Plasmonic laser antenna sharpens nanovision.(MICROSCOPY)
October 1, 2006... In microscopy, diffraction limits spatial resolution to about half a wavelength, or several hundred nanometers with visible light. One way of overcoming this is to use an antenna, rather than a lens, to concentrate light to the subwavelength...

VECSEL produces 120 mW of tunable UV output.(UV LASERS)
October 1, 2006... A U.K. team has reported up to 120 mW of tunable UV output from an intracavity frequency-doubled vertical-external-cavity surface-emitting laser (VECSEL). (1) An optically pumped aluminum indium gallium phosphide (AlInGaP) VECSEL produced more...

ICALEO celebrates its silver anniversary.(MATERIALS PROCESSING)
October 1, 2006... Twenty-five years ago, the first International Laser Processing Conference (ILPC)--which would be named the International Congress on Applications of Lasers & Electro-Optics (ICALEO) a year later in 1982--was held in Anaheim, CA. The ILPC...

Metamaterial achieves second-harmonic generation.(NONLINEAR OPTICAL MATERIALS)
October 1, 2006... Optical metamaterials are the subject of much research as a result of their surprising properties of wave propagation (see www.laserfocusworld.com/ articles/259931). Negative refraction in metamaterials, as well as negative phase and group...

Garments that communicate go into production.(FLEXIBLE DISPLAYS)
October 1, 2006... Clothing that communicates visually via arrays of light-emitting diodes (LEDs) is out of the lab and moving into production. About a year ago, researchers and engineers at Philips Research (Eindhoven, the Netherlands) announced that they had...

PC superlens focusing reaches the optical regime.(PHOTONIC CRYSTALS)
October 1, 2006... Negative refraction and focusing of millimeter waves by dielectric-rod-type or air-hole-type 2-D photonic crystals (PCs) has been demonstrated; however, focusing light waves is more difficult due to observed weak optical confinement and...

Phantoms enhance modeling of light-tissue interactions.(OPTICAL SOFTWARE)
October 1, 2006... Biomedical researchers and optical engineers have long used modeling software to streamline the development of new products and applications. Now, Breault Research Organization (BRO; Tucson, AZ) is augmenting the optical-modeling capabilities...

Golden touch proves too hot for optical trapping.(NANOPHOTONICS)
October 1, 2006... Gold nanoparticles can be manipulated with a laser beam more efficiently and sensitively than the glass or polystyrene nanoparticles that serve as handles for laser manipulation of biomolecules. Unfortunately, gold nanoparticles heat up much...

Self-focusing effects important in high-power fiber amplifiers.(ACTIVE FIBERS)
October 1, 2006... The increasing output-power levels of rare-earth-doped fiber lasers and amplifiers are enabling these sources to displace conventional lasers in a growing variety of applications. At the same time, experimentally demonstrated pulsed fiber...

Rensselaer funding to improve green LEDs.(industry report: laser)
October 1, 2006... A team of researchers from Rensselaer Polytechnic Institute (Troy, NY) received $1.8 million in federal funding to improve the energy efficiency of green light-emitting diodes (LEDs). As part of the U.S. Department of Energy's (DOE's)...

nLight acquires Flextronics assets.(industry report: laser)
October 1, 2006... A manufacturer of high-power semiconductor lasers, nLight (Vancouver, WA) has acquired the assets of Flextronics Photonics. The acquisition will add an array of fiber-coupled and hybrid microelectronic products that will complement nLight's...

Connecticut town approves Trumpf factory.(industry report: laser)
October 1, 2006... Trumpf (Farmington, CT) announced town approval of its plan to construct a new laser facility at its Farmington, CT, campus. The laser factory is designed to consolidate the company's local laser R&D, manufacturing, assembly, testing and sales....

Emcore sells stake in HB-LED maker.(industry report: laser)
October 1, 2006... To better concentrate on its compound semiconductor-based components and subsystems for the broadband, fiberoptic, satellite, and solar power markets, Emcore (Somerset, NJ), has sold its 49% membership interest in GELcore (Valley View, OH) to...

IMRA extends rights to Cyber Laser.(industry report: laser)
October 1, 2006... A new cooperative agreement between Cyber Laser (Tokyo, Japan) and IMRA America (Ann Arbor, MI) provides users of femtosecond micromachining processes freedom to use patented processes developed by the University of Michigan, in all areas...

IPG Photonics.(Also in the news ...)
October 1, 2006... IPG Photonics (Oxford, MA) filed a registration statement with the U.S. government's Securities and Exchange Commission for a proposed initial public offering of its common stock and is opening a new sales and service office in the Detroit, MI,...

Photon Control.(Also in the news ...)
October 1, 2006... Photon Control (Burnaby, BC, Canada) developed two new systems that will increase its sales to a Fortune 500 producer of semiconductor capital equipment; one is a novel laser alignment system, the other uses fiberoptic sensors to process...

Jena-Optronik and Jenoptik Laserdiode (both in Jena, Germany) are developing a pump source for the laser for a new atmospheric lidar.(Also in the news ...)
October 1, 2006... Jena-Optronik and Jenoptik Laserdiode (both in Jena, Germany) are developing a pump source for the laser for a new atmospheric lidar (ATLID) system to be used within the (ESA's) Earth observation program to contribute toward a better...

OccuLogix (Toronto, ON, Canada) has signed a definitive merger agreement to acquire SOLX.(Also in the news ...)
October 1, 2006... OccuLogix (Toronto, ON, Canada) has signed a definitive merger agreement to acquire SOLX (Boston, MA), a privately held company developing novel laser approaches to the treatment of glaucoma.

A multi-university research initiative (MURI) administered out of the Massachusetts Institute of Technology (MIT) Microphotonics Center (Cambridge, MA) was awarded a $3.6 million.(Also in the news ...)
October 1, 2006... A multi-university research initiative (MURI) administered out of the Massachusetts Institute of Technology (MIT) Microphotonics Center (Cambridge, MA) was awarded a $3.6 million Department of Defense grant targeted at demonstrating an...

PerkinElmer adds Raman spectroscopy.(industry report: optics)
October 1, 2006... To expand and complement its molecular spectroscopy product portfolio by adding a family of innovative bench-top dispersive Raman spectrometers, PerkinElmer (Boston, MA) announced the acquisition of Avalon Instruments (Belfast, Northern...

SPIE elects 2007 officers and directors.(industry report: optics)
October 1, 2006... The International Society for Optical Engineering (SPIE; Bellingham, WA) announced election results for terms beginning Jan. 1, 2007. Brian Culshaw was elected by SPIE members to serve as the 2007 president. Culshaw is a professor of...

New biomedical optics company formed.(industry report: optics)
October 1, 2006... A new company has been set up to exploit optical coherence tomography (OCT) in the biomedical optics arena. Optopod will leverage the skills, industry contacts, and international reputation of Adrian Podoleanu, professor of biomedical optics,...

Corning NetOptix completes expansion.(industry report: optics)
October 1, 2006... In a ribbon-cutting ceremony, Corning (Corning, NY) marked the completion of a $2 million addition to Corning NetOptix (Keene, NH), its wholly owned subsidiary, which brings in precision CNC (computer numerical control) grind-and-polish...

Twenty attain top honors from the OSA.(industry report: optics)
October 1, 2006... The Optical Society of America (OSA; Washington, D.C.) announced this year's recipients of 20 of its most prestigious awards. OSA bestows many of these awards during a formal presentation ceremony that will take place at the Society's annual...

Boeing.(Also in the news ...)
October 1, 2006... Boeing (St. Louis, MO) and the U.S. Air Force successfully redirected a laser beam to a target using the Aerospace Relay Mirror System that greatly enhances laser weapon system performance by reducing the atmosphere's effects on laser beams and...

Edmund Optics.(Also in the news ...)
October 1, 2006... Edmund Optics (Barrington, NJ) reported 13 consecutive quarters of year-on-year sales growth, with a 10.6% increase in consolidated revenue in 2005 and a 5% improvement in profitability.

Rogers (Rogers, CT) and Varioptic (Lyon, France) have collaborated.(Also in the news ...)
October 1, 2006... Rogers (Rogers, CT) and Varioptic (Lyon, France) have collaborated to provide OEMs and module makers in the handheld and other market segments with a new liquid tens optical system consisting of Varioptic's autofocus Liquid Lens.

BCC Research.(Also in the news ...)
October 1, 2006... A new market research report from BCC Research (Wellesley, MA) says the total U.S. market for spectroscopic instruments was more than $3.6 billion in 2005 and will cross $5.2 billion by 2010.

Veeco Instruments.(Also in the news ...)
October 1, 2006... A semiconductor packaging manufacturer placed a multiunit $1.7 million order for the SP3250 Optical Profiler from Veeco Instruments (Woodbury, NY) for defect inspection and in-line performance monitoring,

Applied Materials launches solar strategy.(industry report: imaging & detector)
October 1, 2006... In a move that it says will enable customers to increase conversion efficiency and yields to help lower the overall cost per watt for solar electricity, Applied Materials (Santa Clara, CA)--a provider of equipment and services for manufacturing...

Zecotek collaboration targets OCT.(industry report: imaging & detector)
October 1, 2006... To jointly develop advanced light sources and optical systems for its future optical coherence tomography (OCT) medical imaging products, Zecotek Medical Systems (Frankfurt, Germany) entered into an agreement with the University of British...

Spire subsidiary inks RPTV agreement.(industry report: imaging & detector)
October 1, 2006... Bandwidth Semiconductor (Hudson, NH), a wholly owned subsidiary of Spire (Bedford, MA), entered into a five-year manufacturing agreement in which it will be the exclusive supplier of semiconductor wafers to Principia Lightworks (Woodland Hills,...

Flextronics licenses sensor assembly technology.(industry report: imaging & detector)
October 1, 2006... Tessera Technologies (San Jose, CA), through its wholly owned subsidiaries Tessera, Tessera Israel, and Digital Optics, signed a wafer-level assembly technology licensing agreement with Flextronics International (Singapore), an manufacturing...

The U.S. Display Consortium (USDC; San Jose, CA) and Insight Media (Norwalk, CT) are collaborating to identify business opportunities and technical gaps in the three-dimensional (3-D) display industry.(Also in the news ...)
October 1, 2006... The U.S. Display Consortium (USDC; San Jose, CA) and Insight Media (Norwalk, CT) are collaborating to identify business opportunities and technical gaps in the three-dimensional (3-D) display industry and will produce a 3-D market and...

OSI Systems announced that its Optoelectronics and Manufacturing division, OSI Optoelectronics (Hawthorne, CA) received an approximate $10.5 million OEM contract.(Also in the news ...)
October 1, 2006... OSI Systems announced that its Optoelectronics and Manufacturing division, OSI Optoelectronics (Hawthorne, CA) received an approximate $10.5 million OEM contract from an international Fortune 500 medical equipment company to provide proprietary...

ISRA Vision.(Also in the news ...)
October 1, 2006... ISRA Vision (Darmstadt, Germany), an international supplier of industrial image-processing technology, reported large profit increases in FY2005/2006.

Applied Image (Rochester, NY) is partnering with Imatest (Boulder, CO) by packaging the Imatest PRO and LIGHT software.(Also in the news ...)
October 1, 2006... Applied Image (Rochester, NY) is partnering with Imatest (Boulder, CO) by packaging the Imatest PRO and LIGHT software--which measures the sharpness and image quality of digital camera images and digitized film images--with Applied Image's...

NeoPhotonics acquires BeamExpress.(industry report: fiberoptics)
October 1, 2006... Supplier of fiberoptic component and module solutions for long-haul, metro, and FTTX networks, NeoPhotonics (San Jose, CA) announced a significant expansion of its product line for high-capacity enterprise networks through the acquisition of...

Former JDSU CEO to advise Enablence.(industry report: fiberoptics)
October 1, 2006... Jozef Straus--former CEO of JDS Uniphase (JDSU; Milpitas, CA) before and during the telecom boom period and an influential leader in the optical components industry--has agreed to become a strategic advisor to Enablence Technologies (Ottawa,...

Q2 optical network hardware sales up 20%.(industry report: fiberoptics)
October 1, 2006... Infonetics Research (Campbell, CA), in its quarterly Optical Network Hardware report, said that worldwide optical-network hardware revenue jumped 20% between the first and second quarter of 2006, reaching $3.1 billion in Q2, mainly due to big...

Omron acquires FTTH coupler business.(industry report: fiberoptics)
October 1, 2006... A provider of automation, sensing, and control technologies, Omron (Tokyo, Japan) reached a preliminary agreement with NHK Spring Co. (Yokohama, Japan) to acquire NHK Spring's fiber-to-the-home (FTTH) optical-coupler business. Omron...

Fiberoptic sensor company gets funding.(industry report: fiberoptics)
October 1, 2006... SensorTran (Austin, TX) has landed $5.5 million in venture-capital funding to expand its workforce from 8 to 50 workers over the next year and to increase sales. The company uses fiber-optic sensor technology to head off energy-system...

PSI-TEC.(Also in the news ...)
October 1, 2006... PSI-TEC (Wilmington, DE) has established a collocation agreement with a New Jersey-based micro-optics company affording PSI-TEC access to a full suite of fabrication facilities to produce commercial quantities of devices such as high-speed (40...

Fiberguide Industries (Stirling, NJ), a manufacturer of specialty optical fibers and OEM assemblies, entered into an exclusive distributor agreement with AMS Technologies.(Also in the news ...)
October 1, 2006... Fiberguide Industries (Stirling, NJ), a manufacturer of specialty optical fibers and QEM assemblies, entered into an exclusive distributor agreement with AMS Technologies (Munich, Germany), a distributor representing optoelectronic solutions,...

Information Gatekeepers.(Also in the news ...)
October 1, 2006... Information Gatekeepers (IGI; Boston, MA) has released several new and updated market studies on fiber-to-the-premise and ROADM markets.

This blog's for you.(working the web)
October 1, 2006... According to a report from CNET News, an online branch of CNET Networks (San Francisco, CA), more than 14 million blogs are in existence and another 80,000 are being created each day. A blog is the shortened, common name for "Weblog"--an online...

Report poses six challenges, offers six recommendations.(market watch)
October 1, 2006... Considering Eisenberg's observation that uncertainty lies at the base of quantum phenomena, the title of a National Research Council (NRC) report slated for publication this fall, "Controlling the Quantum World" sounds a bit odd. The double...

In aerospace, little things add up: vision system helps calibrate robotic drilling of critical aircraft components.(inside imaging)
October 1, 2006... Imaging is well known for applications in aerospace, from reconnaissance and remote sensing to weaponry and flight safety. Less well known is the growing role of imaging--specifically machine vision--in manufacturing aerospace components and...

How do you deal with a superstar?(business forum)(Interview)
October 1, 2006... Q: How do you deal with hiring a superstar engineer who wants a super-high salary to match? A: Most of us would like to see what we earn tied directly to what we produce. Unfortunately for engineers, salaries are based more or less on...

Lasers look Alzheimer's in the eye.(OPTICAL BIOSENSORS)
October 1, 2006... In combating Alzheimer's disease, researchers and clinicians have faced one constant factor that has proved a major challenge--the difficulty in diagnosing the disease, aggravated by numerous obstacles to accurate detection. Conventional...

UV reflective objectives benefit from design and production advances: reflective optics in the UV are very sensitive to stray light and waterfront error; carefully thought-out manufacturing approaches can overcome these hurdles.(UV OPTICS)
October 1, 2006... Markets such as biomedical instrumentation and semiconductor processing are fueling the use of the ultraviolet spectrum. The nature of UV applications has changed dramatically over the past decade, primarily due to the availability of...

Multifocal stochastic scanning provides fast and artifact-free microscopy.(MULTIPHOTON MICROSCOPY)
October 1, 2006... Fluorescence microscopy is a workhorse of biophysics and cell biology. (1) Imaging of fluorescence from endogenous or exogenous fluorophores is used to reveal structural localization, binding, expression, or conformational state of proteins or...

Photonic crystals boost single-mode power in VCSELs.(PHOTONIC-CRYSTAL LASERS)
October 1, 2006... Vertical-cavity surface-emitting lasers (VCSELs) are popular because of their low power consumption, easy packaging, and easy fiber coupling based on their circular beam profile. Further, VCSELs are easily configured in laser arrays and allow...

Asphere interferometry powers precision lens manufacturing.(INTERFEROMETRY)
October 1, 2006... Semiconductor, consumer electronics, and aerospace systems all depend on aspherical optics to increase product performance and value. Aspheres provide an extra "degree of freedom" to optical designers--not only do they improve optical...

Slow light looks good for optical buffers: recent demonstrations show that slowing down light pulses can provide variable optical delays for use in data buffers and optical processing.(PHOTONIC FRONTIERS: SLOW LIGHT)
October 1, 2006... Slow light first gained wide attention as one of those intriguing physics experiments that made headlines by doing something that the public thought was impossible--slowing light waves down to a veritable crawl. The trick was to go to a logical...

Digital cameras balance resolution and speed.(DIGITAL IMAGING)
October 1, 2006... In digital cameras, the two key performance parameters are the image resolution in pixels and the speed or flame rate at which the images can be retrieved. Unfortunately, the two are interrelated--the more pixels in the image the longer it...

An 'fold' technique finds new life in the nano world: after 30 years under the academic microscope, surface-enhanced Raman scattering is graduating to the commercial marketplace.(OPTOELECTRONIC APPLICATIONS: NANOPHOTONICS)
October 1, 2006... Long before nano was "nano," scientists were fascinated with the idea of being able to observe, quantify, and replicate sub-100-nm phenomena they knew were occurring, even if they couldn't see them. From electron microscopy to Raman...

Network capacity growth demands new solutions.(PHOTONIC INTEGRATION)
October 1, 2006... The growth in Internet-protocol (IP) core network capacity continues to impose important scaling requirements on the underlying optical transport network used to carry this traffic. Numerous industry studies of IP network growth rates agree...

Tunable dye laser.(new products)
October 1, 2006... The FTSS dye laser is tunable from 330 to 900 nm, with an optional SHG unit to cover 205 to 400 nm. It has a maximum repetition rate of 200 Hz and maximum pulse energy in the visible from 20 to 30 [micro]J. An integrated pump laser can provide...

Bandpass filters.(new products)
October 1, 2006... Wide-acceptance-angle bandpass filters can be coated onto curved surface lenses for high-accuracy applications. The abrasive-resistant thin-film coating blocks wavelengths from 400 to 1200 nm with a high transmission at 1064. It allows uniform...

Integrating sphere.(new products)
October 1, 2006... The Smart NIR integrating sphere is designed for use with the company's Nicolet FT-IR spectrometers. The sphere allows for accurate and fast diffuse reflectance measurements of a wide range of powders and solids, including polymers, plastics,...

Machine vision.(new products)
October 1, 2006... The CS6910F Firewire digital camera for machine vision uses a honeycomb-style Super CCD to achieve SXGA resolution (1280 x 960) at up to 30 frames/s. The camera includes a 1/4 in. progressive-scan CCD, random trigger shutter, electronic shutter...

Coating compound.(new products)
October 1, 2006... TRA-Coat 155C is a clear, nonyellowing UV-curable compound that is ideal for coating applications that require a glossy, lens-like finish. It is a low-viscosity, flexible compound that offers low shrinkage during cure and will cure at a rate of...

Laser mirrors.(new products)
October 1, 2006... A range of high reflectors are for use with Q-switched Nd:YAG, [Nd:YVO.sub.4], and Nd:YLF lasers operating at 1064, 1053, and 532 nm. They come as 1 and 2 in. round mirrors on fused-silica substrates, with flatness of X/10 at 633 nm with a...

Machine-vision sensors.(new products)
October 1, 2006... The DVT 515 and DVT 535 machine-vision sensors handle a broad range of applications, including inspection, measurement, counting, feature finding, and pattern comparison. They come with software to handle set up, integration, and maintenance,...

Spectrometers.(new products)
October 1, 2006... The Tristan series of spectrometers from m-u-t are based on back-thinned, 2048-pixel CCD sensors from Hamamatsu. They have dynamic range of 5000:1 and a signal-to-noise ratio of 1.15%. They are available in three preconfigured optical setups...

Positioning stage.(new products)
October 1, 2006... The SQL-3405 motorized linear positioning stage is designed for biological research and optical instruments. The closed-loop stage measures 25 x 25 x 10 mm and delivers automated "set and hold" positioning. An integrated piezoelectric motor...

Xenon source.(new products)
October 1, 2006... The PAX-6 precision-aligned 6 W xenon integrated light source is designed for applications in clinical diagnostics, life sciences, and analytical instruments. The lamp modules contain the xenon flash lamp, trigger circuit, and power supply, and...

Diode laser.(new products)
October 1, 2006... The Deepstar analog and digitally modulated laser diode has a modulation depth of over 100,000:1. It offers analog modulation better thtan 10 MHz and digital modulation better than 100 MHz with rise and fall times of less than 2 ns. It is...

Ambient-light sensor.(new products)
October 1, 2006... The ALS SFH5711 ambient-light sensor for mobile devices imitates the sensitivity curve of the human eye. A logarithmic amplifier integrated circuit allows the device to detect a brightness range from 3 to more than 30,000 lux, with a spectral...