Lamp

1 . 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.

2 . The lamp of claim 1 , wherein the optical component has a length in a direction perpendicular to the second axis that is shorter than a length thereof in a direction of the second axis.

3 . The lamp of claim 2 , wherein the light source has a length in a direction perpendicular to the second axis that is shorter than a length thereof in a direction of the second axis.

4 . The lamp of claim 3 , wherein the optical component is a reflector configured to reflect the light emitted from the light source, or an optical lens.

5 . The lamp of claim 2 , wherein the optical component is a reflector configured to reflect the light emitted from the light source, or an optical lens.

6 . The lamp of claim 1 , wherein the optical component is a reflector configured to reflect the light emitted from the light source, or an optical lens.

7 . The lamp of claim 6 , wherein the reflector comprises a pair of first reflecting surfaces arranged to face each other along a direction of the second axis, and a pair of second reflecting surfaces arranged to face each other in a direction perpendicular to the second axis, and wherein the first reflecting surface has a more upright shape closer to a direction perpendicular to a surface where the light source is arranged, compared to the second reflecting surface.

8 . The lamp of claim 1 , wherein the illumination area on the target surface moves monotonically in a direction identical to a direction of the relative linear movement of the optical component relative to the light source.

9 . A lamp comprising:

a light source configured to emit light;

a support structure comprising a first support extending along a first axis, and a second support connected to the first support and extending along a second axis; and

an optical component configured to change characteristics of the light emitted from the light source,

wherein the support structure is configured to be able to rotate both the light source and the reflector about the first axis, and

wherein the optical component, which is configured to be able to move linearly relative to the light source, is a reflector configured to reflect the light emitted from the light source.