An energy transmission device includes: a semiconductor device formed on a first semiconductor substrate; a semiconductor integrated circuit including a reverse current preventing diode and a control circuit; a DC voltage source; and a transformer. Since traffic information is exchanged between nodes and data is transmitted by using a dynamic long preamble according to receiver nodes, data transmission efficiency can be improved, energy consumed to transmit the long preamble can be reduced, and data transmission delay can be reduced as well. The present invention includes intraocular lenses made from said polysiloxane compositions having a Young’s modulus less than about 10 kPa. The compounds of Formula 1 are useful as medicaments in mammals, including humans, for treatment of diseases and or alleviations of conditions which are responsive to treatment by agonists of alpha2 adrenergic receptors. For example, it is possible to use a light source in which a plurality of LEDs or cold cathode ray tubes are arranged, a light guide plate is combined with an LED or cold cathode ray tube, or an EL device.