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11 articles
Photonics Handbook
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What Is Photonics?
Photonics Media Editors
Photonics is the study of light and other types of radiant energy whose quantum unit is the photon. The impact of photonics on research, technology, navigation, culture, astronomy, forensics, and...
Laser Safety: Important Considerations
Ken Barat, Laser Safety Solutions
When purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser...
Integrating Spheres: Collecting and Uniformly Distributing Light
Greg McKee, Labsphere Inc.
An integrating sphere’s function is to spatially integrate radiant flux (light). However, before one can optimize a sphere design for a particular application, it is important to understand how...
Image Intensification: The Technology of Night Vision
Harry P. Montoro, ITT Night Vision
Image intensification, the basis of night vision, is a complex conversion of energy particles that occurs within a vacuum tube. An image-intensifier system works by collecting photons through an...
Photometry: The Answer to How Light Is Perceived
Photo Research, Inc.
That portion of the spectrum that the eye can see — and its rainbow of colors — is rather small, covering approximately 360 to 830 nm. What colors we perceive depends on wavelength, while...
Cleaning Optics: Choosing the Best Method
CVI Laser Optics
Optics can be contaminated in many ways. Contamination can be kept to a minimum by returning the optics to their case after use or by covering the optics for protection from the outside environment....
Radiometry: A Simplified Description of Light Measurement
Angelo V. Arecchi, Labsphere, Inc.
Radiometry involves several activities. The two most common are the description and measurement of optical radiation, and, starting with the knowledge of some aspects of optical radiation at one...
Digital Still Cameras: The Changing Face of Imaging
Morio Onoe, Professor Emeritus, University of Tokyo
The digital camera represents an integration of optics, mechanics and electronics consisting of three layers (Figures 1a, b and c). The top and the middle layers are printed circuit boards (PCBs),...
High-Speed Video: Selecting a Slow-Motion Imaging System
Andrew Bridges, Photron USA, Inc.
There is a growing market for imaging systems that provides an immediate, slow-motion view of a process that allows one to see events that happen too quickly for the human eye to perceive or...
Laser Scanning Systems: Optimizing Performance
Yuhong Huang and Eric Ulmer, General Scanning
To obtain optimal performance from a laser scanning system, the system integrator must carefully weigh the effects of each component and consider how best to implement hardware and software to...
Colorimetry: How to Measure Color Differences
Konica Minolta Sensing Americas Inc.
The use and importance of colorimetry has grown in unison with the increase of global manufacturing and processing. When plastic automotive trim produced on one continent must match a painted metal...
Photonics Handbook
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