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Optoelectronics & Displays
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The Lead

Big guys finally see the “white”

July 31, 2014 4:35 pm | by Mike Krames, CTO, Soraa | Blogs | Comments

More than one year after Soraa demonstrated it, the importance of whiteness rendering is now being noticed by the larger lighting manufacturers. Perhaps the most notable imitation, from Philips mixes in some violet-emitting with blue-emitting LEDs....

50 W power supplies operate from a universal input of 47-63Hz

July 30, 2014 3:33 pm | Product Releases | Comments

TDK Corporation (San Diego, CA) announces the introduction of 50 W models to the five year...

Explosion-proof LED string lights produce 830 lumens of light

July 28, 2014 12:40 pm | Product Releases | Comments

Industrial lighting specialists Larson Electronics (Kemp, TX) reveals their newly designed Class...

Hazardous-area fluorescent light fixture features Class 1 Division 2 Groups A,B,C, and D approvals

July 25, 2014 3:02 pm | Product Releases | Comments

The HALS-48-4L-347V from Larson Electronics (Kemp, TX) is a hazardous-area fluorescent light...

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Resistive touch panel monitor features RS-232 or USB interface

July 23, 2014 3:07 pm | Product Releases | Comments

ICP DAS USA, Inc. (Lomita, CA) introduces TP-5120, a 12.1" Resistive Touch Panel Monitor, with RS-232 or USB interface. The TP-5120 is equipped with a 12.1" LCD screen that supports an 800 x 600 resolution, operating temperatures from -20 to +70°C (or -68 ~ +158 F) and storage temperature from -30 ~ +80°C (or -86 ~ 176F)....

Ultra-high-definition TVs make gains but still lack market penetration

July 23, 2014 1:54 pm | News | Comments

Ultra-high-definition televisions (UHD TVs) continued to make slow and steady inroads throughout the world, but their share of the overall flat-panel TV market remained minimal by the end of May, suggesting that UHD TV pricing in the market remains too high to gain meaningful share, according to a new report from IHS Technology....

Bootstrap circuit for gate driver optocoupler

July 22, 2014 4:27 pm | by See Leng Kian, Principal Product Engineer of the Optoelectronic Business Unit of Fairchild. | Articles | Comments

IGBTs are commonly used in inverter systems, which are used for adjustable motor drives, solar inverters and UPS. Inverters can be single-phase or three-phase, which is basically an extension of the H-bridge. Figure 1 illustrated one of the six gate driver optocouplers from Fairchild Semiconductor driving the IGBT module for the implementation of the three-phase inverter system.

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Improving driver safety: How to prevent streetlight glare in the new world of LED lighting

July 21, 2014 3:13 pm | by EurekAlert! | News | Comments

Long hours of nighttime driving can cause eyestrain because while our vision adapts to the surrounding darkness, the sudden stabs of brightness from streetlamps can be irritating, distracting and even painful. Even as LED technology has transformed the lighting industry....

LED light draws only 320 watts at 12.53 amps

July 21, 2014 12:22 pm | Larson Electronics Llc | Product Releases | Comments

The LED10WSA-320 LED light released by Larson Electronics (Kemp, TX) produces 29,446 lumens of light output while drawing only 320 watts at 12.53 amps from a 12 volt electrical system. These LED lights are ideal replacements for fragile and hit running 400 watt metal halide lamps....

MediaTek addresses 2K smartphones with the latest in its 64-bit processor lineup

July 18, 2014 1:18 pm | by DisplaySearch | News | Comments

MediaTek announced its first 64-bit Octa-core processor, the MT6795, supports 2K (2560 x 1600) displays. Previously, MediaTek announced two other 64-bit products, MT6732 and MT6752, which support HD and full HD, respectively. The new processor is targeting the high-end 4G smartphone segment....

'Nanocamera' takes pictures at distances smaller than light's own wavelength

July 17, 2014 6:40 pm | by EurekAlert! | News | Comments

Researchers at the University of Illinois at Urbana-Champaign have demonstrated that an array of novel gold, pillar-bowtie nanoantennas (pBNAs) can be used like traditional photographic film to record light for distances that are much smaller than the wavelength of light (for example, distances less than ~600 nm for red light). A standard optical microscope acts as a "nanocamera" whereas the pBNAs are the analogous film.

Plasmon-enhanced Polarization-selective filter

July 17, 2014 1:54 pm | by EurekAlert! | News | Comments

As we all know, some optical devices can only work with a certain incident polarization direction. In this case, a polarizer is necessary to shift the polarization direction of linearly polarized light. A common polarizer is also called half-wave plate, which constructed out of a birefringent material (such as quartz or mica).

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An anti-glare, anti-reflective display for mobile devices?

July 16, 2014 6:10 pm | by EurekAlert! | News | Comments

If you've ever tried to watch a video on a tablet on a sunny day, you know you have to tilt it at just the right angle to get rid of glare or invest in a special filter. But now scientists are reporting in the journal ACS Applied Materials & Interfaces that they've developed a novel glass surface that reduces both glare and reflection

How to drive LEDs with power factor correction in a single stage

July 16, 2014 1:47 pm | by Brian King, Texas Instruments, www.ti.com | Texas Instruments | Blogs | Comments

A PFC-SEPIC converter can be controlled using a traditional PFC-boost controller. An important characteristic of the SEPIC is the lack of isolation.  This limits the use of this topology to applications that don’t require safety isolation.  Think about applications that are completely sealed with no user-accessible energized parts, like street lights and high-bay lighting.

Automotive convenience and safety systems rely on optical sensors

July 15, 2014 4:33 pm | by Jim Toal is Senior Manager, Product Marketing, Vishay Optoelectronics | Articles | Comments

Twenty years ago, I worked for a flexible circuit manufacturer supplying to automotive instrument panel manufacturers.  At that time, these manufacturers were wary of LED lighting. The tried and true twist-in bulb represented 99.9% of interior and exterior automotive lighting....

Image sensor targets traffic, surveillance, medical imaging and industrial inspection

July 15, 2014 10:01 am | On Semiconductor | Product Releases | Comments

ON Semiconductor (Phoenix, AZ) is enhancing its charge-coupled device (CCD) image sensor portfolio with new technology for industrial applications. The new KAI-08051 Image Sensor provides improved light sensitivity, reduced read noise, and improved color accuracy compared to the previous generation...

Two-in-one LED driver features adjustable current and voltage

July 14, 2014 4:14 pm | Product Releases | Comments

GlacialPower (Taipei, Taiwan) announced a new dual-mode LED driver powering LED lighting from 7 W to 20 W. Featuring either constant current or constant voltage operation, the LED driver mode and power output can be easily adjusted to fit a variety of lighting and signage applications.

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300-watt explosion-proof LED light fixture provides 24,000 lumens

July 14, 2014 3:19 pm | Larson Electronics Llc | Product Releases | Comments

The EPL-HB-2X150LED-RT Explosion Proof High Bay light fixture from Larson Electronics (Kemp, TX) provides operators with a powerful and energy efficient alternative to traditional hazardous location luminaries. LED technology and compact design makes this lamp a replacement upgrade option....

Photos of the Day: LG’s 18-inch flexible display

July 14, 2014 1:28 pm | by Youkyung Lee - AP Technology Writer - Associated Press | News | Comments

LG Display Co. has developed an 18-inch flexible display that can be rolled into the shape of a thin cylinder, a step toward making a large display for flexible TVs. The South Korean display panel maker said Friday the flexible display has a resolution of 1200 pixels by 810 pixels and maintains its function when it is rolled up....

LED replacements for incandescent lamps aim to increase the lamp life by 10 times

July 11, 2014 10:49 pm | Product Releases | Comments

VCC (Poway, CA) has enhanced its series of LED replacements for traditional incandescent lamps. Providing a complete drop-in replacement solution, the company’s expanded offering of LED replacement lamps and holders combine simple and fast assembly with…

50 VA rugged pure sine wave inverter targets CCTV systems

July 11, 2014 10:29 pm | Product Releases | Comments

ABSOPULSE Electronics (Ottawa, Canada) has released the CSI 50-24/24-FT, an industrial quality low voltage DC-AC sine wave inverter specifically designed for powering CCTV systems. The inverter uses...

Guide to designing a device incorporating MEMS-based pico projection

July 11, 2014 4:00 pm | by By Carlos Lopez, Strategic Marketing Manager for Pico Products, Texas Instruments DLP | Articles | Comments

Over the last few years, millions of products incorporating pico projection have shipped, and developers are innovating new applications for this rapidly growing display category. Ideal applications for pico projection include near eye display, interactive digital signage, head mounted display, ultra short throw (UST) TV, standalone portable projectors and embedded projection in smartphones, tablets and laptops.

300 watt LED spotlight tower ideal for security and corrections applications

July 10, 2014 3:24 pm | Larson Electronics Llc | Product Releases | Comments

The WAL-TSL-300W-LED security spotlight tower from Larson Electronics (Kemp, TX) is designed to be an effective security and corrections lighting solution that produces a powerful spot beam that can be adjusted to track moving objects on the ground....

RFID light detector is battery-free

July 9, 2014 2:59 pm | Product Releases | Comments

The SHADOW from Farsens S.L., (San Sebastián, Spain), is a battery free RFID ambient light detector tag. These tags are compatible with commercial EPC C1G2 readers. It features a LPRS N5AC501085 Light Dependent Resistor (LDR) to detect exposure to light or darkness.

Miniature diffuse mode photoelectric sensors suit complex applications

July 9, 2014 12:34 pm | Pepperl+Fuchs Inc | Product Releases | Comments

Pepperl+Fuchs (Twinsburg, OH) has added three high performance diffuse mode sensors to its family of user-friendly and field-proven ML100 Series photoelectric sensors. These new versions are designed to provide advanced performance for increasingly complex and space-constrained applications.

Lighting control sensors available with Passive Infrared, Ultrasonic (US), and Dual Technology

July 9, 2014 10:56 am | Product Releases | Comments

Hubbell Lighting (Greenville, SC) announced today that Hubbell Building Automation (HBA) has enhanced its popular wall switch vacancy and occupancy sensor family with the introduction of the LightHAWK2. From conference rooms, offices, and hallways to storage areas, restrooms, and hotel guest rooms ...

IR receivers promise simplified designs for data transmission

July 9, 2014 10:49 am | Product Releases | Comments

Vishay Intertechnology (Malvern, PA) has released two new miniaturized infrared (IR) receivers designed specifically for low-speed data transmission. The TSDP34138/56 and TSDP34338/56 are optimized for low-complexity, low-cost signaling.

Explosion-proof light provides 6,020 lumens of light output

July 2, 2014 4:09 pm | Larson Electronics Llc | Product Releases | Comments

Larson Electronics (Kemp, TX) has announced the release of a pedestal mounted explosion proof light, The EPL-BS-70LED-6XMB-150X12, that is a low-voltage lighting solution which uses advanced LED technology and an industrial grade design to provide operators in hazardous locations with excellent illumination....

Fully illuminated 30mm pushbutton meets the ISO 7000 standard

July 2, 2014 12:14 pm | Apem Components, Inc. | Product Releases | Comments

APEM, Inc. (Vista, CA) announces the new FP30 series pushbutton. Available in either snap-in or threaded bush mounting, this large but lightweight pushbutton is only 1.5 to 2.5mm for the snap in version, and 1 to 9mm for the threaded bushing version....

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