Lamp

A lamp comprising:

• a light source configured to emit light;
• a support structure supporting the light source;
• and
• an optical component configured to change characteristics of the light emitted from the light source;
• wherein the support structure comprises a first support extending along a first axis, and a second support that is connected to the first support and extends along a second axis;
• wherein the support structure is configured to be able to rotate both the light source and the optical component about the first axis;
• wherein the light source and the optical component are configured to be able to move linearly relative to each other along the second axis;
• wherein the optical component has a single inlet larger than an area of the light source, and a relative linear movement between the light source and the optical component is performed within an area of the single inlet;
• wherein the optical component is configured such that, during the relative linear movement, a luminous flux emitted through the optical component remains substantially constant and a movement of an illumination area on a target surface is continuous and monotonic;
• and
• wherein the optical component is configured such that, during the relative linear movement, a displacement amount of the illumination area on the target surface according to the relative linear movement is amplified to be greater than an amount of the relative linear movement between the light source and the optical component.