Patent ID: 9541741
Date: 2017-01-10
CPC Classifications: G02B

Claim:
1. A zoom lens comprising: a first reflection surface; a second reflection surface facing the first reflection surface; a light incident region around an outer circumference of the second reflection surface; a light exit region in a hole formed in a center of the first reflection surface; and a deformable mirror disposed around an outer circumference of the first reflection surface and configuration to reflect light incident from the light incidence region toward the second reflection surface, the deformable mirror comprising a reflection surface that is mechanically or electrically deformable; wherein the first reflection surface and the second reflection surface form an optical path, wherein light incident via the light incidence region is reflected between the first reflection surface and the second reflection surface until the light exits the zoom lens via the light exit region; and wherein the deformable mirror is configured to change a length of the optical path between the light incidence region and the light exit region.