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"  Aiming weapons from a stealth aircraft like the F-35 is not easy. The infrared sensors used to find targets in the air and on the ground need a 360-degree view, so they must hang outside the airframe. However, the shape of any exterior hardware produces a telltale signature on enemy radar, so Lockheed Martin engineers put the targeting optics in a multifaceted sapphire structure jutting out of the fuselage under the aircraft&amp;#039;s nose. &amp;quot;The material is the same as you find in a supermarket checkout bar-code scanner,&amp;quot; says Don Bolling, Lockheed&amp;#039;s business development manager for the electro-optical targeting system (EOTS). From the outside, the beveled shape of the damage-resistant panels will reflect radar in meaningless patterns, in the same way the airplane&amp;#039;s other surfaces are shaped to defeat enemy tracking. Inside, a focal-plane array produces two kinds of infrared images: high-resolution images for targeting, and less distinct &amp;quot;search and track&amp;quot; images to follow distant objects of     What&amp;#039;s Inside F-35&amp;#039;s Deadeye          Laser Assembly Diode-pumped laser finds the range of targets and designates and guides smart weapons.    Fiberoptic Link Connects the sensor to the airplane&amp;#039;s central computer.    360-degree Gimbal Assembly Passive sensors turn to capture thermal images of targets.      Range Receiver Measures the reflected laser to gauge distance.    Spot Tracker Allows airplane to see ground troops&amp;#039; or another aircraft&amp;#039;s targeting lasers.    Fast-Steering Mirror Corrects unwanted movement while tracking targets.     "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.popularmechanics.com/military/a4906/4339113/>