Features

Imaging Sensor Eliminates Extraneous Light

Anew imaging sensor created by a team at Carnegie Mellon University and the University of Toronto allows depth cameras to operate effectively in bright sunlight. The researchers, including Srinivasa Narasimhan, CMU associate professor of robotics, developed a mathematical model to help cameras capture 3D information and eliminate unneeded light or “noise” that often wash out the signals necessary to detect a scene’s contours.

Posted in: Articles, Sensors

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Authentication by Heart: Radar's New Role in Biometrics

The field of wireless vital sign monitoring has a relatively long history, almost as long as radar itself. Doppler radar has been the primary sensor technology for detecting blood flow or fetal heart rate. Over the past decade, there has been an increasing interest and need for creating wireless long-range vital sign monitoring systems. In addition, there has been a strong preference for using non-contact technologies for detection applications, especially for search-and-rescue operations that require the ability to see through debris, walls, and snow. There are also several emerging applications using short-range radar systems for automotive safety systems, remote health monitoring, and heart-based biometric authentication.

Posted in: Articles, Sensors

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Finding the Right Custom Magnetic Sensor For Your Application

Successful magnetic circuits are built upon proper planning and design principles. Experienced design engineers take a holistic approach to the design process by considering the full magnetic circuit. Open communication between the original equipment manufacturer (OEM) team and the customer helps the engineer anticipate the project’s unique parameters and tailor the design accordingly.

Posted in: Articles, Sensors

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Highway Sensor Deployment Gives Valuable Data to ‘Connected’ Drivers

In an effort to improve traffic flow, driver safety, and asset management, the Michigan Department of Transportation (DOT) has installed 17 sensors on a 50-mile stretch of one of the state’s busy Interstate highways. The “connected corridor” deployment will provide useful data for drivers of cars equipped with vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technology.

Posted in: Application Briefs, Sensors

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Using Radiation-Hardened Optoelectronic Devices

Optoelectronic components must be protected from the radiation they are exposed to in military, space and nuclear environments to prevent malfunction and damage. Radiation hardening electronics makes them resistant to this damage by letting them retain characteristics, and keeps imaging and electrical performance consistent with pre-radiation values. This is especially critical for components used in applications like a satellite or a nuclear reactor that cannot be accessed and must work properly for many years.

Posted in: Articles, Features, Photonics

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How Quantum Dots and Ultra HD Are Changing the Way TV Displays Are Made

Chances are you’re familiar with HDTV. Most of us have one of these in our living rooms. In fact, according to a recent study, more than 80% of US residents probably have at least one HDTV in their homes. And there’s a good possibility these sets are LCDs. They may be a few years old but they’re thin, look great hanging on the wall and basically do their job well. Some of these HDTVs also have 3D capabilities but the required glasses have long been lost to the couch cushions or the dog ate them or they just never made it out of the packaging due to lack of content support by broadcasters.

Posted in: Articles, Features, Photonics

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Product of the Month: Multi-Functional Goniometer

Lambda Research Corporation (Littleton, MA), the US distributor of opsira metrology equipment and designer and publisher of illumination and optical design software, has introduced the robogonio from opsira. The robogonio is the first robot-driven, multi-functional goniometer that incorporates six-axis measurement of angular-dependent photometric and radiometric parameters to combine the advantages of different conventional goniometer types into one device.

Posted in: Products, Products, Photonics

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