Photonics & Imaging


White Papers : Imaging
Building an Outdoor-Ready Vision System

The key to a successful all-in-one imaging system is the use of embedded systems – especially when it comes to designing a custom proprietary system. This white paper walks you through key elements to consider when designing an embedded vision system that can then be tailored to your specific application...

Articles : Imaging
The Effects of Micro-Electric Discharge Machining (μEDM) on the Topography of Stainless Steel

Two basic components make up the value added to a work piece by the micro-electric discharge machining (μEDM) process: form and surface finish....

Products : Test & Measurement
New Products: January 2018 Photonics & Imaging Technology

High-Speed Cameras

iX Cameras (Woburn, MA and Rochford, UK) has added a new, value-priced camera to the premium ultra-high-speed i-SPEED 7 Series line. The new i-SPEED 713 is...

Briefs : Imaging
Stereoscopic Imaging in Hypersonic Boundary Layers Using Planar Laser-Induced Fluorescence

Stereoscopic time-resolved visualization of three-dimensional structures in a hypersonic flow was performed for the first time in NASA Langley Research Center’s 31-inch Mach 10 Air Tunnel. Nitric oxide (NO) was seeded into hypersonic boundary layer flows...

Briefs : Imaging
Color-Changing Surface Tunable Through Electrical Voltage

Video screens are made up of hundreds of thousands of pixels that display different colors to form the images. With current technology, each of these pixels contains three subpixels — one red, one green, and one blue. A new method was developed to tune the color of the subpixels. The...

Briefs : Imaging
Improved 3D Imaging Using Optical Coherence Tomography (OCT)

Optical coherence tomography (OCT) is a high-resolution live imaging technique that can be used for early detection of retinal diseases such as age-related macular degeneration,...

Briefs : Imaging
Dual-Field-of-View Multiband Optics

Multi-spectral-band systems are steadily emerging as a desired feature in a camera system. Each spectral band offers different image characteristics. Shorter-wavelength spectral bands provide the potential for better resolution due to the smaller impact of diffraction on the size of the optics blur. This means...

Briefs : Imaging
Optical Ultrasound Needle for Heart Surgery

Doctors currently rely on external ultrasound probes, combined with pre-operative imaging scans, to visualize soft tissue and organs during minimally invasive procedures, as the miniature surgical...

Briefs : Imaging
Microscope Scans Tumors During Surgery and Examines Cancer Biopsies in 3D

Currently there is no reliable way to determine, during tumor-removal surgery, whether the excised tissue is completely cancer-free at its margins — the proof that...

News : Imaging
A Real Engineering Feat: Two Holograms on One Surface
For years many engineers have assumed that you cannot encode more than one holographic image in a single surface — at least without losing resolution. Caltech researchers made the idea a...
Blog : Photonics/Optics
The Top Tech Briefs Stories of 2017

With another year of Tech Briefs almost in the books, it's time to look at our most-read news articles of 2017.

Top stories included a look back at the life of Robert Goddard, and a look forward to...

INSIDER : Defense
Radar Sees Through Walls – By Seeking Symmetry
Using a narrow band of microwave frequencies, researchers at Duke University found a new way to see on the other side of the wall.
Briefs : Imaging
Device-Free Motion Tracing Using WiFi Signals

Fine-grained human motion tracing — the ability to trace the trajectory of a moving human hand or leg, or even the whole body — is a general capability that is useful in a wide variety of...

Briefs : Imaging
Detector System for High-Resolution Imaging

A large-area detector without any dead space capable of handling a large dynamic range does not currently exist. Current large-area detectors have dead zones created by abutting several modules...

Briefs : Imaging
Method for Tracking Moving Targets

Moving target indication (MTI) methodologies are essential tools to detect, locate, recognize, and track the moving targets of interest in a movie or video sequence. Different MTI methodologies can be...

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