Features

Innovation in 3D PDF

Michael KaplanBy Michael Kaplan Director of Engineering Adobe Acrobat Adobe Systems Inc. San Jose, CA When I started graduate studies in 3D computer graphics in 1978, dinosaurs roamed the Earth. I still remember my shock the first time I saw a real-time 3D vector graphics system. That quick glimpse of the future changed my life. The next day I applied to the Masters Program at the Cornell Program of Computer Graphics, and I’ve been working full-time on real-time 3D graphics ever since.

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Laser Scanning System Helps Validate Method for Repairing Space Shuttle Heat Shield

SLP-330 Laser Scanning Probe Laser Design Minneapolis, MN 952-884-9648 www.laserdesign.com The loss of the Space Shuttle Columbia because of damage to its thermal protection system (TPS) during launch spurred a search for methods of repairing the TPS in space; specifically, repairing the Reinforced Carbon-Carbon (RCC) material used to protect the nose cap and wing leading edge panels that experience the most extreme heating — more than 3,000° F — during the return to Earth. In testing possible repair methods, it is critical to accurately measure the complex freeform 3D RCC panel shape after the damage, after the repair, and after tests that simulate re-entry. NASA used the SLP-330 laser scanning probe from Laser Design, integrated with Romer portable coordinate measuring machine (CMM) arms for this task.

Posted in: Application Briefs

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Desktop 3D Scanner

NextEngine, Santa Monica, CA, offers the Desktop 3D Scanner, a full-color multi-laser scanner that scans complex shapes for CAD and 3D design applications on the desktop. About the size of a cereal box, the scanner connects directly to a PC via USB 2.0. It operates with proprietary MultiStripe Laser Triangulation (MLT) technology that features twin arrays of four Class 1M 10-mW solid-state lasers with custom optics at a 650-nm wavelength. The scanner also features twin 3-megapixel CMOS RGB image sensors, optically synchronous RGB color texture capture, and built-in spatially diverse white-light texture illuminators. Full-color photo data is captured for each surface point, and there is no preset limit for the size of objects to be scanned. Objects larger than 5.1 x 3.8" in macro mode and 13.5 x 10.1" in wide mode can be composite-captured with supplied ScanStudio(tm) software. The unit has throughput of 50,000 processed points per second, and comes with an AutoPositioner(tm) to capture multiple surfaces of objects, and a PartGripper(tm) to secure objects during scanning. For Free Info Visit http://info.hotims.com/10966-120

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Dr. Karen Jackson, Aerospace Engineer, Landing and Impact Research (LandIR) Facility

NASA Langley Research Center, Hampton, VA Dr. Karen JacksonIn a crash, keeping the occupants alive and uninjured is paramount. In order to study the dynamics of an impact, military and general aviation aircraft, like cars, must be tested for their ability to keep their riders safe. A part of Structural Dynamics Branch in the Research and Technology Directorate at NASA Langley, the Landing and Impact Research Facility (LandIR) tests aircraft by crashing them. Dr. Karen Jackson is part of the research team.

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On-Chip Debugging Emulator (Renesas Technology America)

Renesas Technology America, Inc. (San Jose, CA) offers the E8a emulator, an onchip debugging emulator for developing embedded systems that use Renesas microcontrollers. It allows referencing and modification of memory, on-chip I/O, and memory contents while a program is being executed. The tool allows C source-level debugging to be carried out with a microcontroller in the M16C, H8/Tiny, or H8/Super Low Power series, operating at full speed in the system. The device also can be used as a programmer to load code into the internal flash memory of many Renesas microcontroller families. The programming voltage range is 1.8 to 5 V, and the unit features a clock oscillator to enable asynchronous communication in line with a microcontroller’s operating frequency. The case measures 92 × 42 × 15 mm.

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Thermographic Improvements Benefit Automotive Industry

Like most mature industries, the automotive industry is highly competitive. Customers demand quality, security, and economy. Competition requires increasingly fast times to market for new designs. Combining customer and competitive demands creates a dilemma: How to design and build the best product as fast as possible.

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Shortwave Infrared (SWIR) Imaging Aids Laser Tracking, Detection

As warfare becomes more asymmetric, civilians and other non-combatants become a larger percentage of the casualties, along with unintended property damage. The military, of course, hopes to avoid these types of casualties and destruction. With advancing technologies that enable more precision from their weapons, they also need better pointing and targeting capabilities, while remaining covert. Improved targeting technologies that allow detection and identification at longer standoff distances from the designators also are needed. For instance, lasers are excellent at precision pointing, but it is important that others be able to covertly image the scene as well.

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

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