Janos Veres,Christophe Olivier Miremont,Duncan John Hill
申请号：
US13818413
公开号：
US20130304162A1
申请日:
2011.08.11
申请国别(地区):
US
年份:
2013
代理人:
摘要：
An apparatus (20) for directing electromagnetic radiation into a respective pupil of at least one eye of a user is disclosed. The apparatus comprises first radiation emitting means comprising at least one radiation emitting layer (8) adapted to emit electromagnetic radiation and second radiation emitting means (6} adapted to direct electromagnetic radiation into at least one eye and/or onto at least one eyelid of a user. A light guide (1) is adapted to receive radiation emitted by the first radiation emitting means and to direct at least part of the radiation to the second radiation emitting means, wherein a total surface area of the first emitting radiation means from which radiation is emitted is larger than a total cross sectional area of a beam of radiation entering the or each pupil of the user in use, in a direction transverse to an optical axis of the beam.
