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14 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...
Superresolution Microscopy: An Imaging Revolution
Marie Freebody, Contributing Editor
Superresolution optical microscopy, for which the Nobel Prize was awarded to Eric Betzig, Stefan Hell, and William Moerner in 2014, has been one of the most momentous developments in the life...
Machine Vision Cameras: Making the Right Selection
GLEN AHEARN, TELEDYNE DALSA
Technological advances have resulted in new, higher-quality sensors that enable machine vision cameras to deliver greater features and functionality at a lower cost than ever before. These factors...
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),...
Heat Control and Lighting Systems Design: Optical Coatings Separate Light from Heat
Eric Krisl, Deposition Sciences Inc.
Controlling and minimizing heat output is desirable in most lighting applications. For example, conventional incandescent light sources are very inefficient with only a small portion of the...
Imaging Colorimetry: Accuracy in Display and Light Source Metrology
Ron Rykowski and Hubert Kostal, Radiant Imaging, Inc.
The market for flat panel displays (FPDs) has undergone tremendous growth, driven mostly by increased demand for televisions, cell phones, computers, digital cameras and MP3 players. Similarly,...
Infrared System Design: Understanding the Process
William L. Wolfe, Professor Emeritus, University of Arizona, Optical Sciences Center
Infrared system design is not, like some circuit design, a synthetic process. One cannot start by stating the problem and proceeding in an orderly fashion to a final solution. Rather, we guess a...
Excimer Lasers: Photonic Stamps with Micron Resolution
Coherent, Inc.
Excimers are pulsed gas lasers that deliver high output power and pulse energies in the ultraviolet and deep-ultraviolet wavelengths. This enables them to power applications that cannot be supported...
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...
Image Processing: Turning Digital Data into Useful Information
William Silver, Cognex Corp.
Images are produced by many means: cameras, x-ray machines, electron microscopes, radar and ultrasound. They are used in the entertainment, medical, scientific and business industries; for security...
Nano-Optics Technology: Optical Alchemy
Hubert Kostal, NanoOpto Corp.
Optics today needs alchemy, and the forces that motivate microchip technology are a key reason why. Today, light can transmit and process digital information as well as electricity can — in...
Polygonal Laser Scanners: Fitting the Elements to the Task
Glenn E. Stutz, Lincoln Laser Co.
Reading and writing systems for polygonal scanners differ in the use of the scanner. However, many performance characteristics are similar for both. In writing applications, a light source, usually a...
Optical Objective Systems: A Schematic Guide
Warren J. Smith, Rockwell Collins Optronics
Simple Meniscus Lens The simple meniscus lens is almost universally used in inexpensive cameras. To get an image of good quality it must be used with a separate aperture stop, reducing the...
Optical Components: Finding Your Way Through the Maze
CVI Melles Griot
Lenses come in a variety of shapes, sizes and materials. They can be made of a single piece of glass or have multiple elements; their surfaces can be spherical, aspheric or cylindrical; they can be...
Photonics Handbook
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