Features

The Hubble Space Telescope

25 Years of Challenges and Triumphs By Bruce A. Bennett On April 24, 1990, something happened that forever altered mankind’s view of the universe. It was on that day that the Hubble Space Telescope (HST) was launched into space aboard the Space Shuttle Discovery.

Posted in: Articles, Features, Cameras, Optical Components, Photonics

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Interview with Jim Odom, Hubble Project Manager 1983-1986

Jim Odom served as project manager on the Hubble Space Telescope from 1983 to 1986. As the world celebrates Hubble’s 25th anniversary, Mr. Odom shared some of his experiences on the project.

Posted in: Articles, Podcasts, Features, Cameras, Photonics

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Hubble Spinoffs: Space Age Technology for the Masses

By Bruce A. Bennett Over the plast 25 years, some of the sophisticated technology developed for the HST has been successfully spun off and commercialized to improve life on Earth.

Posted in: Articles, Features, Cameras, Photonics

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Customizing Visual 3D Optical Coatings

There are many ways to coat an optic and optimize the coating for a specific application, some more interesting than others. But any thin film coating process requires raw materials, coating capabilities, deposition chamber(s), coating software, a spectrophotometer, and an efficient production system that can produce the desired coating or effect while keeping within the customer’s requisite specifications. This article will focus on the challenge of customizing a non-polarizing cube beamsplitter for a 3D visual application and detail the steps taken to make this challenge a reality.

Posted in: Articles, Features, Coatings & Adhesives, Optics, Photonics

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3D Volumetric Display Technology

The United States government spends a lot of money on its defense programs, investing in the training and technology necessary to arm and prepare the most advanced fighting force on the planet. The price tag for these efforts reached $581 billion in 20141 as various branches of defense continued to dedicate funds toward the research and development of innovative tools and technology.

Posted in: Application Briefs, Applications, Displays/Monitors/HMIs, Visualization Software, Optics, Photonics, Simulation Software

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Single-Chip Optical Encoders

iC-Haus (Bodenheim, Germany) has developed sensor chips for optical position encoders using photodiodes designed especially for blue light. The new iC-PT H-Series chips combine optimized scanning and signal interpolation in a flat 5 x 5 mm² optoQFN package with a plane window. Due to the optimized Phased- Array structure of the opto-chips, a minimal scanning area of only 1.9 mm x 3.1 mm is sufficient to generate 10,000 pulses per revolution using a code disc of only 26 mm diameter, for example. The blue light LEDs increase contrast with lower noise. The shorter wavelength and penetration of blue- light photons improve the resolution, signal amplitude, harmonic distortion, and jitter performance of incremental and absolute encoders. www.ichaus.com/encoder-blue

Posted in: Products

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High Output LED Downlights

Hubbell Lighting (Greenville, SC) now offers Prescolite’s MegaLum high output LED downlight in lumen packages ranging up to more than 16,000 lumens. Available in either a downlight (MD8LED) or cylinder (MC10LED) option, the MegaLum is capable of delivering over 16,000 lumens and up to 100 LPW and offers a variety of dimming options including DMX. With a rated minimum of 50,000 hours life, the MegaLum ensures lasting maintenance-free operation. Available in five color temperatures (2700K, 3000K, 3500K, 4000K, and 5000K), the MegaLum uses up to 480 individual LEDs specifically mixed to provide a minimum of 80+ CRI with 3 SCDM color consistency. www.prescolite.com

Posted in: Products

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