Thomas Feichtner has created a simple lamp especially for the designer's drawing table. With a simple change in position, the light emitted by the LED tube lamp changes from hyper-focused for detail work to more widely spread (but actually still pretty focused).

The lamp couldn't get much simpler: it's just a tube, an LED and a cable.

The light is not focused via a complex mechanical system or by adjusting a reflector but simply by putting the whole lamp into a horizontal position. Its construction allows placing it on the desk at two different angular positions. The lamp can be put down in a horizontal position with the illuminant slightly above the desk surface or in a vertical position with a maximum distance between the illuminant and the desk surface...only the sophisticated deformation of the tube provides the lamp with the benefit of adjustability. The interplay of angles, radiuses and lines results in an object which is conclusive in terms of construction and form.

More information here.