Patent ID: 7423767
Filing Date: 2008-09-09
Classification: B64G,H02J,H04B

Abstract:
1. An apparatus for transmitting energy over a distance without a direct electrical or mechanical connection for the transmitting of the energy, comprising: a transmitter unit including a laser generator adapted to emit a laser beam, a deflector arrangement including at least one movable deflector mirror that is interposed in a beam path of said laser beam and adapted to deflect said laser beam, a drive arrangement coupled to said deflector arrangement and adapted to move said at least one movable deflector mirror so as to vary a direction of an emitted beam axis of said laser beam leaving said transmitter unit, and a controller that is connected for control signal transmission to said drive arrangement and is adapted to generate control signals to control said drive arrangement; and a receiver unit arranged at said distance away from said transmitter unit, and including a radiation receiver arrangement that is adapted to receive said laser beam incident thereon, and that comprises a photovoltaic cell arrangement and a ring-shaped reflector around said photovoltaic cell arrangement, wherein said reflector is adapted to reflect as reflected light at least some of said laser beam incident thereon; wherein said transmitter unit further comprises a reflection detector arrangement including a light sensor that is adapted to detect said reflected light and is connected for signal transmission to said controller; and wherein said reflection detector arrangement is connected to said deflector arrangement and coupled to said drive arrangement so that said reflection detector arrangement undergoes at least gross movements together with said deflector arrangement and remains oriented with a sensitive axis of said reflection detector arrangement parallel to a basic direction of said emitted beam axis of said laser beam leaving said transmitter unit.