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All About Aspheric Lenses

The most notable benefit of aspheric lenses is their ability to correct for spherical aberration. Spherical aberration results from using a spherical surface to focus or collimate light. In other words, all spherical surfaces suffer from spherical aberration independent of alignment or manufacturing errors; therefore, a non-spherical, or aspheric surface, is needed to correct for it. Aspheric lenses allow optical designers to correct aberrations using fewer elements than conventional spherical optics because the former gives them more aberration correction than multiple surfaces of the latter. This white paper will discuss the anatomy and benefits of an aspheric lens, the different types of aspheres and how they are made, as well as Edmund Optics custom manufacturing capabilities.

Posted in: White Papers, Photonics

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BioCompatic: LEMO - Northwire's Robust USP Class VI Silicone Alternative

Combining decades of field-proven life science experience, LEMO and Northwire’s collaborative white paper highlights the professional expertise and continual innovation necessary to design and manufacture end-to-end (E2E) connector and cable assembly solutions that meet the rapidly evolving demands of the medical market.

Posted in: White Papers, White Papers, Coatings & Adhesives

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New Solder for Semiconductors Creates Manufacturing Possibilities

A research team led by the University of Chicago has demonstrated how semiconductors can be soldered and still deliver good electronic performance. The team developed compounds of cadmium, lead, and bismuth that can be applied as a liquid or paste to join two pieces of a semiconductor by heating them to several hundred degrees Celsius, which is mild by industry standards. The paste or our liquid converts cleanly into a material that will be compositionally matched to the bonded parts, and that required development of new chemistry. Special molecules were designed that fulfill this requirement so they do not contaminate the material. After application as a liquid or paste, they decompose to form a seamless joint. The technology could enable 3D printing of semiconductors, and could lead to the development of less expensive, solution-processed semiconductors needed for entry into new markets. Among these markets are printable electronics, 3D printing, flat-panel display manufacturing, solar cells, and thermoelectric heat-to-electricity generators for the Internet of Things. Source:

Posted in: News

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Rubber Production Techniques Could Improve Tires, Reduce Pollution

People have been making rubber products, from elastic bands to tires, for centuries, but a key step in this process has remained a mystery. Scientists from the Kyoto Institute of Technology in Japan have described this elusive part of rubber production that could have major implications for improving the material and its uses. Their findings, if used to improve tire performance, for example, could mean higher gas mileage for consumers and less air pollution. A chemical process called vulcanization has been critical for the manufacturing of quality rubber since the second half of the 1800s. Chemists have improved the process, but progress has largely plateaued in recent years. If scientists could gain insight into the details of vulcanization, they could further tweak it to make even better rubber. Using the latest analytical techniques, the researchers discovered a previously unknown structure that forms during vulcanization. The new observation could contribute to making the ubiquitous material even better. Source:

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Compact 3D Printer-Scanner is All-In-One Part Maker

Nanyang Technological University’s (NTU) start-up Blacksmith Group launched a compact 3D printer that can also scan items into digitized models. Named the Blacksmith Genesis, this user-friendly device allows users without much knowledge of 3D software to scan any item, then edit the digitized model on the computer, and print it out in 3D.  Housed in a black aluminum casing, the device features a 2-inch LCD display, Wi-Fi, an integrated SD-card reader, and a USB connection for instant printing. Blacksmith Genesis uses an innovative rotary platform for its printing and scanning, unlike other commercial 3D printers. The revolving platform allows for true 360-degrees scanning. Blacksmith Genesis is also the first to feature remote live monitoring and automatic error detection, thanks to its in-built camera. This allows users to monitor and control the printing process on their smartphone from anywhere in the world through the Internet. Source:

Posted in: News

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Learn more about the Fortus 380mc and 450mc Stratasys 3D Printers

This presentation highlights the customer benefits of the 380mc and 450mc Stratasys 3D production systems. Not only do these printers let you build accurate, repeatable parts faster than ever before but they also produce jigs, fixtures, factory tooling and end-use parts, as well as functional prototypes to withstand stringent testing. With four layer thicknesses to choose from, you can strike the right balance between strength and detail while also leveraging FDM’s fastest build time.

Posted in: Tech Talks

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New Method Generates High-Resolution, Moving Holograms in 3D

The 3D effect produced by stereoscopic glasses used to watch movies cannot provide perfect depth cues. Furthermore, it is not possible to move one’s head and observe that objects appear different from different angles — a real-life effect known as motion parallax. Researchers have developed a new way of generating high-resolution, full-color, 3D videos that uses holographic technology. Holograms are considered to be truly 3D, because they allow the viewer to see different perspectives of a reconstructed 3D object from different angles and locations. Holograms are created using lasers, which can produce the complex light interference patterns, including spatial data, required to re-create a complete 3D object. To enhance the resolution of holographic videos, researchers used an array of spatial light modulators (SLMs). SLMs are used to display hologram pixels and create 3D objects by light diffraction. Each SLM can display up to 1.89 billion hologram pixels every second. Source:

Posted in: News, Video

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