| 摘要 |
<p>A mirror assembly comprises a mirror, a heater unit, and mounting means holding the heater unit generally centrally against the rear of the mirror. The heater unit is a relatively thin flat box with a rear plate of structural material (steel) and a cover panel of heat-conducting material (aluminium), and contains a heater element extending over substantially the whole area of the cover panel. The heater element may be of sinuous shape, with a layer of thermally insulating material between it and the rear plate. In the embodiment shown the mounting means 21 comprises a back plate 30 having brackets 42, 43 for securing it to the mirror 20 and 42, 44 for attachment to a wall or the like, and resilient means 40 for urging the heater unit 22 against the mirror, and has a connection box 31, 32 attached to and depending below it. An indicator light 36 is visible through an unsilvered area 37 of the mirror. <IMAGE></p> |
