| 摘要 |
A remote control handset including a light source, such as LED 8 is adapted to emit a beam of light responsive to pressing of a button 6. The centre of the beam of the light is configured to propagate from the remote control handset at an angle Ï´ between +20 and +90 degrees from the planar contour A of the upper portion of the housing. The light source may be mounted at the angle within the remote control handset or an optical clement such as a lens, mirror, prism, prism array, grating or a holographic element (see figures 3-6) may used to bend the centre of the light beam into the angle. An adjustment mechanism such as a hinged mirror unit (60c, figure 6c) or cylinder housing (69, figure 6d) may be used to adjust the angle of the centre of the beam. The optical elements may be provided as part of a fastener (32, figures 4a-c) which can be a retrofit solution. |
