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MORE TEST & MEASUREMENTTEST & MEASUREMENT FEATURES
Innovations in Lens Measurement Jan 29, 2018 — Automobile cameras, telescopes, head-mounted displays, laser-focusing heads and other modern photonic devices incorporate high-grade optics that can perform under extreme environmental conditions. The demand for such lenses means they must be reproduced with the utmost accuracy, placing stringent requirements on lens measurement. While the industry has a mature toolset for evaluating rotationally invariant aspheres, the technologies that pertain to freeform surface metrology are relatively
Photonics Spectra, Mar 2018
Thermal Imaging Spurs New Applications Dec 13, 2017 — Long-wave infrared (LWIR) imaging, also known as thermal imaging, has played a critical role in the defense and security market for decades because of its ability to detect warm (or live) objects independent of ambient lighting. Recently, advances...
Industrial Photonics, Jan 2018
Mastering Machine Vision Dec 12, 2017 — As competition increases and customer requirements become more stringent, machine vision technology is becoming imperative for companies in manufacturing. Vision systems provide an automated and repeatable way of performing the quality control and...
Industrial Photonics, Jan 2018
Member Exclusive
Optical Techniques Tackle Nanoscale Measurements Oct 31, 2017 — Materials at the nanoscale can behave in surprising ways. While the properties of macro materials can often be predicted, the behaviors of a material invisible to the naked eye can differ greatly. Providing insight into this nanospace is essential...
Photonics Spectra, Dec 2017
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Thickness Measurement Steps Up its Game Feb 21, 2017 — Conducting accurate thickness measurements is essential for ensuring consistent quality of products such as plastic bottles and containers; however, measurement techniques are often invasive, destructive, time-consuming and wasteful. Unlike...
Industrial Photonics, Apr 2017
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More Fiber Will Make Healthier Aerospace and Defense Jan 18, 2017 — In military and aerospace applications, improving size, weight, power and cost (SWaP-C) is critical. That’s why electronics are being replaced by fiber optics. Fiber is lighter than copper and is immune to electromagnetic interference, a significant...
EuroPhotonics, Mar 2017
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Prism Awards: The Oscars of the Industry Nov 30, 2016 — The industry is primed and ready for Photonics West 2017. It’s a time for networking, sharing products and research, and learning. It’s a time to recognize the world’s top innovators, as well. This largest conference and expo in...
Photonics Spectra, Jan 2017
Maximum Exposure: Ray-Tracing Software Optimizes Reflector Design Aug 30, 2016 — The concentrated solar market is often overshadowed by photovoltaic (PV) panels, yet the market segment is expected to grow by nearly 20 percent annually through 2020. Concentrated solar power — or CSP — has unique performance advantages...
Photonics Spectra, Oct 2016
The Long and the Short of It: Techniques for Measuring Aspheres Aug 1, 2016 — The benefits of aspheric lenses are numerous: They allow for a reduction in spherical aberrations and are ideal for focusing or collimating light, as they can achieve a low ƒ-number. Aspheres also allow the same or better performance using...
Photonics Spectra, Sep 2016
When the Camera Is a Computer: Computational Life Sciences Imaging Jun 21, 2016 — Sensors and cameras continue to progress, although life sciences imaging remains far from perfect. Even in its current state, barriers still exist. These include signal photon noise, light scattering, optical blur of finite aperture imaging systems...
BioPhotonics, Aug 2016
IR Sensor Calibration: When Extreme Uniformity Is Not Boring Apr 27, 2016 — Extended area blackbodies are now commonly used as reference sources for IR cameras, simultaneously calibrated. The uniformity of the reference blackbody is therefore essential. A newly developed specific bench measures IR source uniformity with a...
EuroPhotonics, Jun 2016
Procedures Hinge on Nonlaser Light Sources’ Optimal Spatial Intensity Distribution Apr 14, 2016 — Unsterilized medical products, dental restorations with incompletely cured restorative materials and adhesives that fail in their application are a few of the potential outcomes when light-based processes are poorly understood. Laser beam profiling...
BioPhotonics, Jun 2016
Laser Confocal Microscopy: Challenging the Limits of Measuring Surface Roughness Feb 10, 2016 — When evaluating the surface of a component, surface roughness can be assessed by eye or rubbed with a fingertip. Common expressions include “shiny,” “lusterless and rough,” “like oxidized silver” or “like a...
Photonics Spectra, Feb 2016
Measuring Small-Beam MFD: Overcoming the Challenges Oct 28, 2015 — Small beams are used in many critical applications yet often they are not directly profiled. While obtaining good beam profiling data on beams under 10 µm has its challenges, they can be overcome with proven techniques.
Photonics Spectra, Nov 2015
Laser Measurement System Best Practices Oct 8, 2015 — Given the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these devices — the choice usually comes down to the...
Industrial Photonics, Oct 2015
3D Vision for Industrial Robots Oct 8, 2015 — Industrial robots have existed for several decades, finding an initial foothold in the automotive sector. With tasks requiring high levels of repeatability, large payloads and moderate speeds, automotive plants were ideal for early industrial...
Industrial Photonics, Oct 2015
Choosing a Machine Vision System — Making the Right Selection Oct 8, 2015 — Picture an industrial process designer confronted with a problem that only vision-based technology can solve. The first decision that the designer would need to make is whether to choose an application-specific device or a general-purpose device. ...
Industrial Photonics, Oct 2015
Aspheric Lenses: Optimizing the Design Sep 1, 2015 — This second of two articles discusses the tools optical designers need to tailor their designs to the appropriate manufacturing process, optimizing the cost of component fabrication.
Photonics Spectra, Sep 2015
CCD Sensors Remain Competitive with Broadening Appeal Jun 26, 2015 — CCDs continue to be the sensor of choice for applications such as astronomy and spectroscopy. With future investment, we can expect improvements in sensor architecture, resolution, pixel size and depth, as well as readout speeds. Over the last few...
Photonics Spectra, Jul 2015
Laser World of Photonics Jun 15, 2015 — Laser Munich will focus on image processing, from products and systems to manufacturing and applications. Image processing and laser systems are ever-present in modern manufacturing. The 2015 Laser World of Photonics conference and trade fair,...
EuroPhotonics, Jun 2015
Improved Photometric Testing for High-Power LEDs Apr 24, 2015 — The LM-85 approved method for electrical photometric measurement of high-power LEDs harmonizes the methods currently in use and addresses measurement consistency issues. This is the first in a two-part series. The standardized photometric testing...
Photonics Spectra, May 2015
3-D Smart Sensor Improves Feature Inspection in Assembly Apr 9, 2015 — For quality control, measurements must be absolutely precise: Many systems, processes and parts affect the quality of the final product. In assembly operations, many inspection points must be monitored to ensure that components fit properly and that...
Industrial Photonics, Apr 2015
Lens-Free Imaging for Large-Surface Industrial Inspection Apr 9, 2015 — With micro- and nanofabrication surging, there is a growing need for cameras that can automatically monitor large surfaces for microscopic details. Scanning setups with conventional microscopes are sometimes used, but they are too slow and bulky for...
Industrial Photonics, Apr 2015
Sensors Go Out, Up, Down and Around Apr 9, 2015 — Cows are happier. They also are giving more milk. Both of these related outcomes are a consequence of automated milking systems that depend upon photonics-based 3-D sensors. Other innovations involve sensors operating outside the visible spectrum,...
Industrial Photonics, Apr 2015
Advances in Industrial Color Testing of Automotive Metallic Finishes Apr 3, 2015 — The measurement and characterization of lightness fluctuations, their scaling properties and their potential causes could help design low-noise industrial painting processes and help engineer innovative color and texture effects. The appearance of...
Photonics Spectra, Apr 2015
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