| 摘要 |
A light-transmitting device comprises two or more tubular, elongated light guiding or transmitting members (10), which are arranged co-axially within each other. Each light guiding member has opposite light receiving and light emitting ends (11, 23). An annular light emitter assembly (13) with a plurality of light emitters (14) is positioned at the light receiving end (11) of each light guiding member (10) so as to emit light from the light emitters into the light receiving end of the respective light guiding member. The light receiving ends (11) of the guiding members are flared or trumpet shaped and mutually spaced axially so as to provide more space for the light emitter assemblies (13). The device may be used as a lamp or torch, for example for dental use, or for transmitting light signals. In the latter case the light emitting ends may be flared or widened like the light receiving ends so as to provide an enlarged contact surface, for example for transferring the light signals to an interface for converting the light into electrical signals. |
