Photonics/Optics

Utilizing Machine Vision Engines for Advanced Quality Control and Object Detection

Advanced object and feature recognition eliminates the need for physical probing or fixed sensors.Incorporating machine vision engines into an OEM system with automated handling provides a wide range of benefits to the manufacturer. Machine vision engines are self-contained vision systems that include the optics, lighting, image sensor, electronics, and software to enable standalone “intelligent” decision-making using vision software. Machine vision engines are also much more compact than traditional industrial machine vision systems, which makes them more appropriate for integration into OEM systems with limited space.

Posted in: Bio-Medical, Briefs, Briefs, Photonics

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Single, Stationary Lens Able to Create Microscopic 3D Images

Freeform lens could someday provide a proof of concept for manufacturers of microelectronics and medical devices.A lens that enables microscopic objects to be seen from nine different angles at once to create a 3D image has been developed. Other 3D microscopes use multiple lenses or cameras that move around an object; the new lens is the first single, stationary lens to create microscopic 3D images by itself.

Posted in: Bio-Medical, Briefs, Briefs, Diagnostics, Photonics

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Laser Beam vs. Electron Beam Welding Which process works best for what?

Proponents of laser beam welding (LBW) and electron beam (EBW) welding each pronounce the singular praises of their favored technology, but often the best solution for a customer is to use both technologies together. Both processes are well suited to joining components with complex geometries, and capable of meeting the most stringent demands for metallurgical characteristics of the final assembly.

Posted in: Articles, Features, ptb catchall, Photonics

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Making Machine Vision Systems Smarter

Machine vision technology is used extensively throughout manufacturing to improve product quality, increase productivity and reduce costs. One of the reasons for that is a machine vision system will work tirelessly on mundane repetitive tasks at high speed with great precision.

Posted in: Application Briefs, Applications, ptb catchall, Photonics

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Multi-Wavelength, Multi-Beam, and Polarization-Sensitive Laser Transmitter for Surface Mapping

This laser transmitter can be used for precision mapping and remote sensing.A multi-beam, multi-color, polarized laser transmitter has been developed for mapping applications. It uses commercial off-the-shelf components for a low-cost approach for a ruggedized laser suitable for field deployment.

Posted in: Briefs, TSP, ptb catchall, Tech Briefs, Photonics

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Optical Communications Link to Airborne Transceiver

An optical link from Earth to an aircraft demonstrates the ability to establish a link from a ground platform to a transceiver moving overhead. An airplane has a challenging disturbance environment including airframe vibrations and occasional abrupt changes in attitude during flight. These disturbances make it difficult to maintain pointing lock in an optical transceiver in an airplane. Acquisition can also be challenging. In the case of the aircraft link, the ground station initially has no precise knowledge of the aircraft’s location.

Posted in: Briefs, ptb catchall, Tech Briefs, Photonics

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Method of Reducing Stray Energy Burns in Laparoscopic Surgery

Active Electrode Monitoring (AEM) instruments incorporate a “shielded and monitored” design to lower risk of injury.Any surgery brings with it risk, both to the patient and the surgeon. However, laparoscopic surgery sometimes brings an additional invisible risk: stray energy burns. Electrosurgical devices and laparoscopic instruments can suffer insulation failures and capacitive coupling, potentially causing stray energy burns to the patient. Often these burns occur out of sight of the surgeon and may go unnoticed until the patient presents with symptoms like peritonitis or sepsis.

Posted in: Bio-Medical, Briefs, Briefs, Surgical Robotics/Instruments, Lasers & Laser Systems, Photonics

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