Lighting

Novel Nanoparticle Production Method Could Lead to Better Lights, Lenses, Solar Cells

Sandia National Laboratories

Sandia National Laboratories has come up with an inexpensive way to synthesize titanium-dioxide nanoparticles and is seeking partners who can demonstrate the process at industrial scale for everything from solar cells to light-emitting diodes (LEDs).

Posted in: News, Lighting, Product development, Fabrication, Nanomaterials, Titanium
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Researchers Determine LEDs Are Safe for Skin

Stony Brook University

There was a time when no one thought about light bulbs; when one blew, you simply screwed in another one. Nowadays, it’s more complicated, as energy efficiency concerns have given rise to a slew of options, including incandescent, compact fluorescent lights, and light emitting diodes.

Posted in: News, Lighting, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Medical, health, and wellness, Safety testing and procedures
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Tetrapod Quantum Dot Samples

Quantum Materials Corp. (San Marcos, TX) announced that it has shipped Tetrapod Quantum Dots in sample quantities to a diversified leading Asian-based electronics manufacturer. Tetrapod Quantum Dots are an advanced nanoscale material that improves the performance and energy efficiency of very high-resolution computer, TV and smartphone displays. Quantum Materials' patent-pending continuous-flow technology produces uniform, narrow bandwidth tetrapod quantum dots with bright emission, less aggregation, purer colors (including high-luminous red) and precise color rendition.

Posted in: Products, Lighting, Displays, Displays, Suppliers, Nanotechnology
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LED Light Engines

Norlux (Carol Stream, IL) LED design services for OEMs recently created 8 families of standard light engines for TRP, ready to drop into existing luminaires. Depending on the model, color temperature options range from 2700K to 5000K, most with 83 CRI or better. Each LED board can be matched to a complementary TRP driver for a total packaged solution.

Posted in: Products, Lighting, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Product development, Suppliers
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SOLA II LED Based Light Engines

Newport Corporation (Irvine, CA) is partnering with Lumencor Inc. to offer the SOLA II Series of LED-based light engines as an addition to its range of photonics instruments. The Sola II light engines are intense, white-light solid state illuminators for bio analysis and microscopy applications. With their unique design and patented technology, the Sola II light engines offer excellent illumination and higher brightness than comparable products. The pre-aligned, turn-key systems require no maintenance, are compact and easy to use. In addition, all SOLA II Series light engines are mercury free, CE, RoHS, and REACH certified.

Posted in: Products, Lighting, Light emitting diodes (LEDs), Microscopy, Light emitting diodes (LEDs), Microscopy, Medical equipment and supplies, Interior lighting, Interior lighting
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LED Circuits

Heraeus Precious Metals (West Conshohocken, PA) is pleased to announce the continuing performance growth and reliability of CelcionTM. CelcionTM is a thick film material system designed to produce electronic circuits for LED lighting on aluminum substrates. It is a highly efficient alternative to traditional metal core printed circuit boards (MCPCBs).

Posted in: Products, Lighting, Integrated circuits, Light emitting diodes (LEDs), Integrated circuits, Light emitting diodes (LEDs), Product development, Suppliers, Aluminum
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New Drones Ensure Ideal Photographic Lighting Positions

Researchers at MIT and Cornell University will provide photographers with squadrons of small, light-equipped autonomous robots that automatically assume the right positions for photographic lighting.

With the new system, the photographer indicates the direction from which the rim light should come, and the miniature helicopter flies to that side of the subject. The photographer then specifies the width of the rim as a percentage of its initial value, repeating that process until the desired effect is achieved.

In the researchers' experiments, the robot helicopter was equipped with a continuous-light source, a photographic flash, and a laser rangefinder.

The researchers tested their prototype in a motion-capture studio, which uses a bank of high-speed cameras to measure the position of specially designed light-reflecting tags with millimeter accuracy; several such tags were affixed to the helicopter.

Source

Also: Learn about Small-Object Detection via Fast Discrete Curvelet Transform.

Posted in: News, Aerospace, Aviation, Cameras, Imaging, Lighting, Lasers & Laser Systems, Photonics, Automation, Robotics
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Researchers Develop Flexible, Energy-Efficient Hybrid Circuit

Researchers from the USC Viterbi School of Engineering have developed a flexible, energy-efficient hybrid circuit combining carbon nanotube thin film transistors with other thin film transistors. The hybrid could take the place of silicon as the traditional transistor material used in electronic chips, since carbon nanotubes are more transparent, flexible, and can be processed at a lower cost.

The hybridization of carbon nanotube thin films and IGZO (indium, gallium and zinc oxide) thin films was achieved by combining their types, p-type and n-type, respectively, to create circuits that can operate complimentarily, reducing power loss and increasing efficiency. The inclusion of IGZO thin film transistors provided power efficiency to increase battery life.

The potential applications for the integrated circuitry are numerous, including Organic Light Emitting Diodes (OLEDs), digital circuits, radio frequency identification (RFID) tags, sensors, wearable electronics, and flash memory devices. Even heads-up displays on vehicle dashboards could soon be a reality.

The new technology also has major medical implications. Currently, memory used in computers and phones is made with silicon substrates, the surface on which memory chips are built. To obtain medical information from a patient such as heart rate or brainwave data, stiff electrode objects are placed on several fixed locations on the patient’s body. With the new hybridized circuit, however, electrodes could be placed all over the patient’s body with just a single large but flexible object.

Source

Also: Learn about an Integral Battery Power Limiting Circuit for Intrinsically Safe Applications.

Posted in: News, Board-Level Electronics, Electronic Components, Electronics & Computers, Lighting, OLEDs, Medical, Patient Monitoring, RF & Microwave Electronics, Semiconductors & ICs, Sensors
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Liquid Cooling Technology for LEDs

Best quality LED A-lamp light bulbs provide a superior, energy-efficient alternative to incandescent bulbs, which have essentially been banned as of January 1, 2014. LED bulbs offer the same amount of light as an incandescent while using up to 80 % less energy. There still remains, however, a wide discrepancy in performance between LED bulbs and what consumers expect from them as alternatives to standard incandescent bulbs. This variation in performance and cost can be largely attributed to how specific LED bulb manufacturers solve the challenge of removing heat from the LED components within their bulbs.

Posted in: Articles, Lighting, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Cooling
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Finding the Optimal Lighting Solution for Line-Scan Applications

In machine vision systems, acquiring images of moving targets is a challenge and consequently the best image requires three fundamentals to be well defined:

an excellent camera; an appropriate lens; an appropriate illumination.

All three items are the key to enable subsequent successful image analysis, while poor image quality will task any machine vision application.

Posted in: Articles, Lighting, Light emitting diodes (LEDs), Light emitting diodes (LEDs), Automation, Computer integrated manufacturing
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