| 词条 | AN/PVS-5 |
| 释义 |
| name = AN/PVS-5 | image = | caption = AN/PVS-5A | origin = United States of America | type = Passive | category = Head/helmet mountable | is_tube = yes | service = 1972–present[1] | used_by = United States Armed Forces | wars = Vietnam War Gulf War Operation Enduring Freedom Operation Iraqi Freedom | design_date = 1971 | manufacturer = ITT Industries Litton Industries | Produced = 1972{{spaced ndash}}present | variants = AN/PVS-5, AN/PVS-5A, AN/PVS-5B, AN/PVS-5C | weight = 850 grams | dimensions = 6.5" x 6.8" x 4.7" | resolution = >20 lp/mm | Op_time = 50 hrs | mode = Passive | iitube = MX-9916 | fov = 40 degrees | detection = 50m (Starlight) 150m (Moonlight) | zoom = 1× | generation = 2 }} The AN/PVS-5 is a dual-tube night-vision goggle used for aviation and ground support. It uses second-generation image-intensifier tubes which are poor for today's standards. The United States Army still has PVS-5 on supply but are very rarely used. The AN/PVS-5 is based on the SU-50 which was a first-generation night-vision goggle adapted by the United States Air Force in 1971. From 1972 until 1990 the AN/PVS-5 was the mainstay in United States Army night vision for aviation. The AN/PVS-5C was not approved for flight because of its auto-gated feature causing the goggle to shut off in bright light. For ground troops the AN/PVS-5 was the sole night-vision goggle until the adaptation of the improved AN/PVS-7. By today's standards the PVS-5 was a real safety risk for pilots, issues such as a limited field of view, poor light amplification, inability to read maps, and its excessive weight made it difficult to fly while operating them. In 1982 tests were being made for a suitable replacement for the AN/PVS-5 specifically for aviation, this led to the adaptation of the AN/AVS-6 ANVIS in 1989. The ANVIS was the first night-vision goggle used by the United States Army specifically designed for aviation. The designation AN/PVS translates to Army/Navy Portable Visual Search, according to Joint Electronics Type Designation System guidelines. References1. ^http://www.usaarl.army.mil/TechReports/98-28.PDF {{DEFAULTSORT:AN PVS-5}}{{optics-stub}}{{US-mil-stub}} 4 : Infrared imaging|Military optical devices|Military electronics of the United States|United States Army equipment |
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