| 摘要 |
A device for continuous regulation at will of the luminous intensity, transmitted by a luminous source to a radiant energy carrier, wherein there are provided: an opaque or matt box design body of circular section, provided at its two bases with two cylindrical openings, projecting to the outside and coaxial to each other one of which is elastic and serves as attachment for the terminal of a radiant energy carrier, whereas the other one is provided with a conductor for the current supply and a cylindrical support for a lamp having a smaller outside diameter than the inside diameter of the cylindrical opening, said lamp being applied to a support; the latter is provided laterally with a flexible, peripheric metal blade, surrounding it at least partially, and a knob fitted in the opposite portion relative to that in which there is fastened the lamp. |
