Laser module used in saddle roof of e.g. building, has artificial light source e.g. LED to emit light to light reflectors which reflects the light to photovoltaic panels to convert absorbed-radiation into electric current

摘要

The laser module has an artificial light source (1) such as LED, light scattering laser diode and combination of LED and light scattering laser diode. The light reflectors (6) are arranged to reflect the light from the light source to the photovoltaic panels (2,3) which converts the absorbed radiation into the electric current. The solid laser crystal is made of glass plate, neodymium ion endowed yttrium vanadate, ytterbium ion endowed yttrium aluminum garnet or neodymium ion endowed yttrium aluminum garnet.