Light guide member and indicator light fitting

A light guide member (100, 200, 300, 400) for a power device (10) includes an annular body (34) adapted to be disposed within a housing (22) of the power device (10). The annular body (34) has an outer surface (63) contoured complementary to the inner surface (50) of the housing (22) and includes a light receiving surface (44, 46) and a light emitting surface (48). The annular body (34) further comprises a light coupling portion (42) adapted to receive the light source (30, 32) and configured to direct light emitted by the light source (30, 32) to the light receiving surface (44, 46). Light received by the light receiving surfaces (44, 46) propagates through the annular body (34) via internal reflection to a light emitting surface (48) where the light is directed out of the light guide member and uniformly illuminates a portion (53) of an outer surface (52) of a housing (22) of the power device (10). 一种用于功率设备(10)的光导构件(100、200、300、400)，包括适于被设置在功率设备(10)的外壳(22)内的环形主体(34)。环形主体(34)具有轮廓与外壳(22)的内表面(50)互补的外表面(63)，并且包