Helmet-mounted head-up display - has optical unit for directing display light reflecting plate toward shield

摘要

A display appts. for use with a helmet (5) has a front opening (10) and a transparent shield (6) mounted in such a manner as to cover the front opening. A display unit (11) is disposed on the inner side of a chin portion of the helmet. Display light from the display unit is reflected toward a visual point position by an inner face of the shield so that an observer visually observes a virtual image of the display information of the display unit from within the helmet through the shield. - The display unit may be supported for pivotal motion, may be backlit by a light collecting plate mounted outside the helmet, may give rise to two beams of light and may be powered by a solar battery backed up by an internal battery which can be charged from a charging terminal. The internal battery may be charged, when the helmet (5) is not worn, from the solar battery (86) or a car-carried battery (92).