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Optics, Illumination, Light Sources White Papers
Precision Infrared Narrow Bandpass and Dual Bandpass Filters Featuring Low OH-Band Absorption
Alluxa’s new class of Infrared (IR) bandpass and dual band filters bring the precision of dielectric filters to the IR between 2 and 5 microns. They are manufactured with an advanced, plasma enhanced PVD process using durable, hard metal-oxide, and durable semiconductor front surface thin films. The films have excellent environmental stability. The OH (water) band at 2.7 microns shows loss below the measurement limit even after 10 days of harsh Mil-810G temperature and humidity cycling.
LED/OLED Design Using Mixed-Level Simulation
There has been extensive research to improve the design of light-emitting diodes (LEDs) and organic LEDs (OLEDs) to enhance light extraction efficiency, improve beam shaping, and allow color tuning. Due to the range and scales of geometric...
Easy High Dynamic Range Imaging for Welding Vision
Welding has long been a key technology for assembling metals parts in various industries. Nowadays with the constant search of quality and productivity, welding has become increasingly sophisticated with the introduction of new processes and the...
Infrared Camera Accuracy and Uncertainty in Plain Language
How accurate are thermal imaging cameras, and how are they calibrated? Understanding infrared camera accuracy and sensitivity can help clarify the value of well-calibrated thermal imaging cameras. In this paper, we use layman’s terms to explain how...
Are Off-the-Shelf Optics Always the Best Solution?
A white paper from Resolve Optics addresses the commonly asked question "Are off-the-shelf optics always the best solution?". Today there exists a huge number of off-the-shelf lenses for mass market applications where unit cost is the dominant...
Promoted Content
Fluorescence Lifetime Imaging Application Simplified... With the pco.flim
The pco.flim whitepaper gives an introduction in fluorescence lifetime imaging, if it is done in the frequency domain, with all the required background information. It is thought to refresh the knowledge about photo luminescence and how lifetime...
Promoted by: PCO-TECH Inc.
High Precision Lens Assembly with Alignment Turning Machines
In recent years, alignment turning technology has experienced some key developments. Progress has been made with regard to aspheres, cylindrical surfaces or "best fit" centration of lens groups. It has also been possible to significantly increase...
Illumination for Law Enforcement, Logistics, Safety, and Security
Today’s fast changing world requires an ever-increasing level of sophistication in security applications. Illumination is a crucial component of any system employed to discover anomalies in scanned objects or find minute variations that could cause...
Fabricating and Testing Freeform Optics: Current Capabilities, Lessons Learned and Future Opportunities
Freeform optical shapes or optical surfaces that are designed with non-symmetric features are gaining popularity with lens designers and optical system integrators. A common question about freeform optics is, “If I design it, can you really make...
UVSCALE Visualizes UV light amount distribution by color density
One side of the base film has a UV light sensitive layer, with the opposite side having a white-colored layer. The light sensitive layer changes color according to the amount of UV light it receives, so the amount of light distributed on the exposed...
Ultra-Narrowband Optical Bandpass Filters with Large Format and Improved Temperature Stability
Hard coated ultra-narrowband optical filters made using modern plasma processes offer much improved transmission, temperature stability and out of band blocking as compared to legacy soft coatings. These filters are used in optical systems as...
UV Curing of Fiber Optic Coating
Current optical fiber manufacturing processes use UV lamp systems for curing protective coatings to the glass fiber. These systems suffer from low efficiency, high maintenance costs and environmental concerns. UV LED curing systems provide a...
Time-Lapse Imaging with Lamp and LED – Stability vs Repeatability
Advancements in LED technology today enable LEDs to provide a compelling alternative to lamps for fluorescence microscopy illumination and have become increasingly popular. This article discusses the differences in stability between Lamps and LEDs,...
Use of White Light Fluorescence LED in long-term Live Cell Imaging Applications
Lamps have long been used in microscopy facilities to conduct time-lapse imaging experiments. Light uniformity, stability and sample exposure are key in generating reliable data. In this study, we evaluate an LED system (X-Cite 120LED) for our...
Reduction of Substrate Thermal Damage Using Pulsed UV LED Curing Systems
UV LED curing systems deliver narrow bandwidth, high intensity UV light for low heat, rapid curing of optically-activated materials. Although LED curing systems do not deliver unwanted IR or visible light, some UV-absorbing substrates may still...
High Volume Optical Component Testing Using an Agilent Cary 7000 Universal Measurement Spectrophotometer (UMS) with Solids Autosampler
In this study, we demonstrate increased productivity and reduced cost-per-analysis with automated, unattended multi-angle R/T analysis for multiple samples of uncoated fused silica using an Agilent Cary 7000 UMS fitted with an Agilent Solids...
Beam Expansion - Standard Concepts Re-interpreted
Everyday work in an optics laboratory would be unthinkable without beam expansion systems. They serve to optimally adjust the beam cross sections between the light sources (e.g. lasers) and the subsequent optical elements. Precise illumination of...
Measuring Optical Densities Over 10 Abs on the Agilent Cary 7000 Universal Measurement Spectrophotometer (UMS)
High blocking optical filters deliver critical optical control in a wide variety of consumer and industrial products. Highly attenuating (i.e., high optical density) filters are used in personal protective equipment, such as laser safety eyewear,...
Understanding Infinity-Corrected Objective Resolving Power and Magnification
This informative white paper from Edmund Optics covers a range of topics from the field of Microscopy, including terminology, application examples, and descriptions of different types filters such as dichroic, emission, and excitation filters used...
Clearly Superior Epoxies for Optical Applications
As technology in the optics industry continues to advance and improve, careful consideration of the properties of epoxies must be evaluated. When determining the most effective adhesive to be used in opto-electronics, medical and other optic related...
Flat Top, Ultra-Narrow Band Pass Optical Filters Using Plasma Deposited Hard Oxide Coatings
Flat top and square narrowband filters of less than 1nm in bandwidth and transmission of >90% even 95% are now available at sizes of up to 250mm in diameter. Out of band blocking levels of 3 OD to 6OD can easily be added. These filters can be used...
Thin Substrate, Dichroic and Polychroic Thin Film Filters Featuring Flatness <0.1 Waves RMS
The filters used by fluorescence detection systems are arguably the most important element defining the system performance. Alluxa’s new line of thin substrate ultra-flat dichroics and polychroic filters provide improved optical performance, achieve...
Advanced Light Cure Adhesive
Breakthroughs in adhesive technology enable light curing adhesives to cure under a visible light wavelength of 405 nanometers. Learn how these environmentally friendly adhesives can improve worker safety and lower production costs while offering a...
Durable, Front Surface Hard Optical Coatings for Replacing Laminated Soft Coatings
Soft coatings possess poor environmental durability, poor temperature stability and low transmission, high optical scatter, yet they are still used mostly due to low cost. Alluxa’s advanced high speed deposition technology has finally enabled hard...
New Metrology Techniques for Advanced Thin-Film Optical Filters
The performance of advanced thin films as demonstrated by Alluxa’s thin films are challenging even the best metrology equipment and techniques. In this paper we have described a number of simple techniques, such as reference beam attenuation,...
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Spring 2024
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