Electrical/Electronics LIGHTS, LAMPS & LEDs

Top Product

Point-source 
LED pixels

• individually-addressable
• standard manufacturing technology

A line of point-source RGB surface mount LED pixels appear as full-color point sources to the human eye, and are able to generate any mixture of the three primary colors. The devices consist of individually-addressable red, blue and green LED chips combined in a single package. Built-in reflectors and/or lenses combine the output to create what appears as a point source, even as close as 10 in. Assembly is with standard surface mount technology picking, placing and soldering. Five styles are offered—a 2832-size rectangular transfer-molded package, a 3632-size rectangular PCB carrier package, a 5mm x 5mm square dome, a T5-mm round dome and a T8-mm round dome. Other options include choice of chip materials and custom lenses. Lumex Inc, Palatine, IL. Free info—Circle 450.

FED. Outputting one candlepower at 3200°K, this low-voltage, low-current flame-emitting diode is for applications where minimum brightness is desirable. Color spectrum is in the yellow band. Options include a wind deflector. Amish Electronics, Buggywhip, OH. Free info—Circle 471. 

Flexible light pipe. The FLP-R1 Series of light pipes feature a rectangular lens cap assembly for through-hole and surface mount configurations. It can provide LED-based lighting to points up to 328 ft. distant, in a variety of colors. Bivar Inc, Irvine, CA. Free info—Circle 469. 

Coated mirrors & prisms. This company offers 90-degree mirrors with aluminum or copper coatings, and enhanced aluminum coating on 90-degree prisms. The latter can serve to split an image from a video lens onto two cameras. Edmund Industrial Optics, Barrington, NJ. Free info—Circle 456. 

Ring light. The Munchkin R-90M 8-point adjustable ring light provides full 360-degree shadow-free illumination. Diameter is 1.75 in. Applications for the 1 lb device include clean room and quality control installations. Chiu Technical Corp, Kings Park, NY. Free info—Circle 457. 

Optic bonding. OptiLOC products include anaerobic adhesives plus room temperature and heat curable epoxies for a wide variety of applications in telecommunications, data linking and networking. The materials can be used in optical alignment applications where high strength is critical, and low shrinkage properties provide excellent stability during cure. In non-optical use, OptiLOC can act as an electrical insulator. Loctite Americas, Rocky Hill, CT. Free info—Circle 451. 

Hi-intensity LEDs. The Shark Series of high flux LED illuminators are offered in standard blue, green, amber, red and white colors. Typical brightness for the red Shark is 55 lumens, with a static operating current of 300-800mA for the series. Opto Technology Inc, Wheeling, IL. Free info—Circle 458. 

Photodiodes. S7861/S7861-02 Si PIN photodiodes feature wide dynamic ranges and fast data transfer rates, making them excellent for high-speed optical communications systems such as Fiber Channel and Gigabit Ethernet. Hamamatsu Corp, Bridgewater, NJ. Free info—Circle 459. 

Fiber optic panels. Providing high-brightness illumination for front and back lighting of machine vision imaging systems, these woven fiber optic panels emit uniform, diffuse and shadow-free light over large surface areas. The panels can be driven by LEDs, or by halogen sources up to 150W. Custom sizes are offered, and die-cut holes can be fabricated. Standard sizes have lit areas ranging from 2- x 2-in. to 7- x 8-in. Lumitex Inc, Strongsville, OH. Free info—Circle 452. 

Avalanche photodiode. Combining a 500-micron diameter, low-noise Si avalanche photodiode with a high-speed transimpedance amplifier, the PSS-AD500-1.3G-TO5 responds to light in the 350-1000nm range. Pacific Silicon Sensor Inc, Westlake Village, CA. Free info—Circle 460. 

Miniature surface-mount LED. The 1104B top-view LED features a 120-degree viewing angle with typical luminous intensity of up to 120 mcd, depending on color. Footprint is 2.2 x 2.8mm in a standard PLCC-2 package. Stanley Electric Co, Irvine, CA. Free info—Circle 470. 

Low-power color LCD. Engineered for portable handheld devices such as cellular phones, 2-way pagers, and small test and measurement units, the RA43Z uses the same amount of power as a black-and-white LCD of similar size, resolution and pixel configuration.. The 3mm-thin, transreflective-positive color LCD runs on 3.3V and consumes just 2.5 mA in operation mode and 10 µA in standby. Seiko Instruments USA Inc, Torrance, CA. Free info—Circle 453. 

Single-digit LED. The Series BS-C27 features a flat pad design with an internal connection to create a surface mount package. It’s offered in a wide range of colors with intensities ranging from 12 through 20 mcd. American Bright Optoelectronics Corp, Brea, CA. Free info—Circle 462. 

Molded backlights. Tri-Color LED Molded Backlights can operate with a single LED through MicroLens technology. They are ideal for producing different colors for small to mid-size displays Global Lighting Technologies Inc, Brecksville, OH. Free info—Circle 463. 

Sapphire base plates. Suitable for mounting, plating, polishing, etching and final dicing of GaN, GaAs, Si and other materials, these plates feature a flatness to 0.5 fringes of HeNe and parallelism from 20 arc-secs to 1 arc-sec. The clear, Moh 9 plates can be polished on one or both sides to a finish approaching scratch-free at 70x magnification. Sizes offered are 50mm to 82mm dia in 0.5mm to 3.0mm thicknesses. Meller Optics Inc, Providence, RI. Free info—Circle 454. 

RJ45 port indicators. These LED indicators nest with RJ45 ports on PCBs to provide visual confirmation of data traffic, network connectivity and signal integrity on equipment like Ethernet hubs, bridges, routers and modems. LEDtronics, Torrance, CA. Free info—Circle 466. 

Elliptical LEDs. The LO484 series of 4mm AlGaInP/GaN LEDs have a 110 x 45 degree radiation pattern. This wide viewing angle makes them suited for indoor signs, instrumentation and LCD backlighting. Marktech Optoelectronics, Menands, NY. Free info—Circle 467. 

Color sensors. Three integrated optoelectronic sensors, one for each primary color (red, green, blue), provide onboard conditioning plus a deposited color filter. The devices can be used together for color measurement applications, or individually or in combinations for color identification. Uses cover a wide range of commercial, industrial and medical inspection and analysis tasks. TAOS-Texas Advanced Optoelectronic Solutions, Plano, TX. Free info—Circle 472. 

LED displays. A line of numeric and alphanumeric LED displays are offered in a variety of colors (including multi-color), intensities and sizes. They can be surface or through-hole mounted, and special icons can be custom-made. Para Light Corp, Walnut, CA. Free info—Circle 464. 

White LED ring and line lights. Designed and optimized for machine vision and semiconductor manufacturing applications, these modules have a Fresnel lens for bright, uniform lighting. They produce bright, white light with excellent uniformity. StockerYale Inc, Salem, NH. Free info—Circle 468. 

Visible-IR lamps. These long-life miniature lamps are designed for applications involving gas analysis or detection. They feature uniform, thin-wall glass envelopes (0.15mm to 0.35mm) with closely positioned double-coiled CC-6 tungsten filaments for enhanced IR radiation. Offered in T-3/4 and T-1 sizes, the lamps are offered with bi-pin or wire lead connections, or as a complete assembly with gold-plated reflectors. Gilway Technical Lamp, Woburn, MA. Free info—Circle 455. 

LCD inverter. The DMA Series DC-AC inverter is designed to power LCDs backlit by two cold cathode fluorescent lamps, for use in lower temperature environments and require higher starting voltages. Output power is 12W with PWM dimming. Endicott Research Group, Endicott, NY. Free info—Circle 465. 

Built-in connector. Adding an L41 connector to this line of LEDs speeds production while ensuring correct lead matching. The connector is resistant against dust and water contamination, making it suited for marine and food processing equipment. Wilbrecht Electronics Inc, St. Paul, MN. Free info—Circle 461. 

Efforts to produce a true white-light LED moved closer to resolution, when a team of researchers in Italy demonstrated binary combinations of certain organic compounds producing white or near-white emissions. Reported in Applied Physics Letters issue 79, and by Nature magazine, each of the molecules shines with blue light in isolation, but pairing of the light sources produces white photoluminescence. The explanation for the phenomena refers to a discovery made in 1994—that a pair of dissimilar molecules can form an exciplex, where excitation of the molecule with the lower electron affinity is followed by transfer of the other molecule, which is still in its ground state. The complex electron-hole pair, now involving both molecules, then decays by photon emission at wavelengths considerably longer than those emitted by either individual molecule. Exciplex formation generates a broad band of emission wavelengths across the visible spectrum, which becomes viewed as white. Besides the possibility of leading to a white-light LED, producing such an organic device would be less expensive than using crystalline electroluminescent semiconductors that are common to most of today’s commercial LEDs.