Imaging

Design, Fabrication, and Test of WFIRST/AFTA GRISM Assembly

Goddard Space Flight Center, Greenbelt, Maryland

This work originated with the Wide Field InfraRed Survey Telescope (WFIRST) slitless spectrometer design (GRISM assembly), which attempted to follow the Hubble Space Telescope (HST) method of employing a singleelement GRISM as a slitless spectroscope. However, WFIRST’s field of view (FOV) is ~100x of HST’s wide field camera, and the spectral resolution is ~5x higher with a relatively faster f/8 system. The design turned out to be extremely difficult using only one diffractive surface. Even with many freeform optical elements, and putting a grating on a toroid surface, the image performance was still not satisfactory.

Posted in: Briefs, TSP, Imaging, Photonics, Mirrors, Optics, Spectroscopy, Product development
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Spinal Ultrasound Just-in-Time Training Tool

This software facilitates ultrasound imaging of the cervical and lumbar spine by crewmembers in-flight.

Lyndon B. Johnson Space Center, Houston, Texas

Back pain and injury are recognized risks that can affect the well-being and performance of crewmembers during missions, as well as their long-term health. Spine elongation is a documented effect of microgravity, back pain is a common occurrence in early flight, and the post-flight incidence of spinal injury is higher than the population average. These observations suggest that spinal unloading results in a transition to a new set point for the spine, and causes discomfort and an increased risk of injury.

Posted in: Briefs, TSP, Imaging, Photonics, Personnel, Injury causation, Spacecraft
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Wide-Spectrum Organic Mass Spectrometer Using Far-Ultraviolet Ionization

Lyndon B. Johnson Space Center, Houston, Texas

Two-step laser desorption/photoionization mass spectrometry (L2MS) represents a powerful tool for the organic analysis of astromaterials. The technique has high sensitivity and requires little to no sample preparation.

Posted in: Briefs, TSP, Imaging, Photonics, Lasers, Spectroscopy, Particulate matter (PM), Test equipment and instrumentation
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AEGIS Imaging Software Unearths Mars Rocks

In mid-October, a NASA-developed software called AEGIS was uploaded to the Mars Science Laboratory (MSL) rover. The AEGIS technology, winner of NASA’s 2011 Software of the Year award, will soon allow scientists on the ground to more easily identify interesting rocks and other terrain features on the Red Planet.

Posted in: Articles, Imaging, Photonics, Computer software and hardware, Imaging and visualization, Terrain, Spacecraft
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Hybrid Technology Advances Laser Material Processing

MultiWave Hybrid Technology* combines multiple laser beams with various wavelengths into a single coaxial laser beam. There are existing systems using two different laser wavelengths independently, but this is the first technology capable of combining multiple wavelengths into a single beam, providing a valuable tool for the development of novel material processing technologies.

Posted in: Articles, Imaging, Photonics, Lasers, Product development, Cutting, Polymers, Steel
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Manufacturing OLED Lighting

Organic Light Emitting Diode (“OLED”) lighting panels are thin planar area light sources that are naturally diffuse, low glare, high color rendering, cool to the touch, highly energy efficient and highly controllable. Together with LED light sources, they compose the solid state lighting technologies that are replacing over 100 years of bulb and tube lighting technologies, just as solid state electronics have replaced the bulbs and tubes used in electronic devices such as radios, computers and displays.

Posted in: Application Briefs, Imaging, Photonics, Light emitting diodes (LEDs)
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‘Internal Fingerprint’ Imaging Offers Deeper Authentication

A new technology developed by researchers from The Langevin Institute (Paris, France) enables subsurface imaging of the finger. The “internal fingerprint,” according to the device’s creators, could provide cheaper, more secure authentication than traditional scanners.

Posted in: Application Briefs, Imaging, Photonics, Imaging and visualization, Body regions
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SPIE Photonics West 2016 Preview

The SPIE Photonics West 2016 technical conference and exhibition returns to The Moscone Center in San Francisco, February 13-18, offering attendees the opportunity to explore the latest innovations in lasers, photonics, optics, optoelectronics, biophotonics, biomedical optics, 3D printing and more. As in the past, the event will once again kick off with BiOS, the world’s largest biomedical optics conference, before transitioning into the Photonics West conference and exhibition. Last year’s event hosted more than 21,000 attendees and put the products and services of over 1,250 exhibitors on display. More than 4,800 technical papers will be available to conference participants throughout the week.

Posted in: Articles, Imaging, Photonics, Imaging and visualization, Lasers, Optics, Additive manufacturing
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THz-TDS and THZ-FDS Imaging Systems

Terasense (San Jose, CA), in collaboration with Toptica Photonics (Victor, NY), has unveiled the first imaging cameras enhanced for time-domain and frequency-domain generation systems. The new cameras, developed for specific use in TDS and FDS systems, operate in the 50 GHz to 0.7 THz frequency range. Both products achieve 50 fps and pixel size dimension of up to 1.5 × 1.5 mm2. Image test results achieved are publicly available on the Terasense website for further analysis and inspection of realtime application.

For Free Info Visit http://info.hotims.com/61057-205

Posted in: Products, Imaging, Manufacturing & Prototyping, Photonics
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Frame Grabbers

The FireBird 1xCLD-2PE4 Camera Link frame grabber from Active Silicon (Iver, UK) conforms to both 8-bit/10-tap and 10-bit/8-tap modes. The Gen2 ×4 PCIe bus sustains a 1.7Gbytes/s throughput. Capture is supported from two simultaneous Base Camera Link cameras, as well as single Base, Medium, and Full configurations. Power over Camera Link (PoCL) is provided.

Posted in: Products, Imaging, Manufacturing & Prototyping, Photonics
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