| 摘要 |
A lamp with an adjustable shade for regulating the dispersion of a light beam, wherein there is mounted on to a wall fitting (1) a tube (2), the front edge of which forms a connecting piece (3) with a second tube (4), on to the free end of which is mounted a light source holder (5) and a light reflector (6), wherein the lamp has a shade (7, 10) and wherein the shade (7, 10) is movable in relation to the second tube (4), the light source holder (5) and the light reflector (6), characterized in that the external shade part (7) is provided along one section with a longitudinal slot (8) where the shade (7, 10) can be moved along the length of the slot (8) in slidable engagement with the said second tube (4). The shade (7, 10) consists of an external shade part (7) and an internal shade part (10), where the external shade part (7) has longer axial extension than the internal shade part (10), and where a slide block (13) constitutes a part and extension of an end wall (11) on the internal shade part (10), and that the shade (7, 10) is slidable along the length of the slot (8) through the hole (12) in the end wall in the internal shade part (10), and that over a first section of its length the external shade part (7) is provided with the said slot (8) and over a second section encloses the said internal shade part (10). In the hole (14) in the slide block (13) there is mounted a spring (15), one end of which is enclosed by a sliding plate (16) which is pressed against the said second tube (4) and the second end is enclosed by an end piece (17) for anchoring the internal shade part (10) in the external shade part (7), the end piece (17) having a section which is caused to engage with a hole (9) in the external shade part (7), thereby making the lamp steplessly adjustable.
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