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  2. Ballistic eyewear - Wikipedia

    en.wikipedia.org/wiki/Ballistic_eyewear

    Ballistic eyewear is a form of glasses or goggles that protect from small projectiles and fragments. For the U.S. military, choices for such eye protection are listed on the Authorized Protective Eyewear List (APEL). [1] Ballistic eyewear including examples that meet APEL requirements are commercially available for anyone who wishes to buy it.

  3. AN/PSQ-20 - Wikipedia

    en.wikipedia.org/wiki/AN/PSQ-20

    The AN/PSQ-20 Enhanced Night Vision Goggle (ENVG) is a third-generation passive monocular night vision device developed for the United States Armed Forces by ITT Exelis. It fuses image-intensifying and thermal-imaging technologies, enabling vision in conditions with very little light. The two methods can be used simultaneously or individually.

  4. Authorized Protective Eyewear List - Wikipedia

    en.wikipedia.org/wiki/Authorized_Protective...

    Goggles are required to stop a 17-grain fragment simulating projectile moving at a speed of 550 feet per second (approximately twice the energy impact of spectacles). For testing, the velocity of the projectile must be verified using sound or optical chronograph methods. The eyewear is put on an Alderson 50th percentile male headform.

  5. Night-vision device - Wikipedia

    en.wikipedia.org/wiki/Night-vision_device

    A night-vision device (NVD), also known as a night optical/observation device (NOD) or night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision.

  6. Army helicopter in DC crash was on 'routine' training flight ...

    www.aol.com/army-helicopter-dc-crash-routine...

    Trump suggested the goggles, if worn, could have played a significant role in the accident. Secretary of Defense Pete Hegseth said the helicopter was on a 'routine annual retraining' when it ...

  7. AN-6530 goggles - Wikipedia

    en.wikipedia.org/wiki/AN-6530_goggles

    AN-6530 goggles saw use in nearly every type of U.S. flight crew position during World War II, particularly with pilots, gunners and observers who needed protection from glare, wind and debris. Expense in production technique, time, and materials and issues with lenses shattering and contributing to eye injury led to the development of the ...

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