Helmet-mounted display

Common card · No. 274239

In aviation, a helmet-mounted display (HMD) is a head-worn device that uses digital displays and optics to project imagery and/or symbology to the wearer's eyes. It provides visual information to the user where head protection is required – most notably in military aircraft. The display-optics assembly can be attached to a helmet or integrated into the design of the helmet. An HMD provides the pilot with situation awareness, an enhanced image of the scene, and in military applications cue weapons systems, to the direction their head is pointing. Applications which allow cuing of weapon systems are referred to as helmet-mounted sight and display (HMSD) or helmet-mounted sights (HMS).

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