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  Shadowgraphy Imaging Technique
 

Using the backlight/shadowgraphy imaging technique can provide high contrast object images for a better understanding of an object's shape or size. This technique shines a light towards a camera in order to create a white image. An object is then passed between the light source and the camera which creates a dark area on the image, or a shadow. This application note looks further into this imaging method, and walks through its optical setup and its application uses.

Featured Article
Meeting Optical Needs For Drones
 
By Dr. Nissim Asida, director, R&D and engineering, Ophir

UAV optics with higher MTF values and lower F# are used more frequently as detectors become larger in size and smaller in pixel size in order to maximize imaging performance. This article describes the essential improvement of lens quality with higher performance levels in order to ensure that UAVs operate with the highest performance possible.

Spotlight On High-Speed Cameras
High-Speed, High-Resolution Cameras For Science, Aerospace And Media Applications: Phantom VEO4K

The new Phantom VEO4K camera family from Vision Research is designed to capture up to 1,000 frames per second (fps) at 4k and higher at reduced resolutions, and may be used for demanding scientific research, defense, and media applications.

Hot Topic: The Promise, Advantages, And Challenges Of High-Speed Infrared Cameras

This Q&A details how next-generation high-speed IR cameras are up to this challenge, pointing out their functions, benefits, and limitations.

FAST-IR Infrared Camera Series

The FAST-IR 2K infrared cameras are a series of fast rate cameras designed for thermal analysis of dynamic events. In order to analyze dynamic events, the infrared cameras allow high-speed thermal imaging with an impressive temporal resolution at a rapid frame rate.

High-Speed CMOS Cameras: pco.dimax Series

PCO’s high-speed CMOS camera series delivers extremely fast frame rates, high resolution, and a variety of operational and trigger modes. They are well-suited for applications involving airbag inflation, combustion research, ballistics testing, and other high-speed camera applications. 

Resources
Fast Wavelength Meter Precisely Maps Laser's Tuning Behavior

The 828B High-Speed Optical Wavelength Meter from Bristol Instruments is designed to provide accurate wavelength information at an unprecedented rate of 1 kHz. It revolutionizes WDM wavelength testing applications by reducing test times from hours to minutes. 

Advances In CMOS Image Sensors And Associated Processing: Part 2

Part 2 of the series describing advancements in CMOS sensors and processing focuses on a new Super 35 mm CMOS image sensor that is specifically developed to support origination of high dynamic range (HDR) motion imagery. 

Theory And Measurement Of The Modulation Transfer Function (MTF)

MTF is a quantitative and objective measure of the quality of an image formed by a lens or and electro-optical system. This measurement is appropriate for lenses of all qualities and can be calculated from lens design data, which enables theoretical and actual performances to be compared. 

Practical Considerations For Near-IR LEDs

This application note provides practical considerations for current driven LED devices.

Featured Multimedia
Laser Rotary Encoders By Canon
 

This video contains information on Canon’s Laser Rotary Encoders, or rotation angle sensors, and describes their benefit over conventional rotary encoders.

Bulletin Board
Flexible Design Capabilities Through DIY Custom Lens Calibration
 

This white paper demonstrates the benefits of using the CLC utility alongside Tamarisk camera cores in three common integration scenarios.

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