Patent ID: 7692869
Filing Date: 2010-04-06
Classification: G02B,G03B,H04N

Abstract:
1. An image-taking lens unit comprising: a variable magnification optical system for forming an optical image of an object with a variable magnification; and an image sensor for converting the optical image into an electrical signal; the image-taking lens unit changing a shape thereof between a photographing state and a non-photographing state, wherein the variable magnification optical system has a plurality of lens groups for performing magnification variation by changing intervals therebetween and a reflective surface for bending an optical axis and comprises at least two movable groups, at least one of which is located closer to an object side than the reflective surface and at least one of which is located closer to an image side than the reflective surface, at least one of the plurality of lens groups being a movable group that moves during magnification variation, the reflective surface being kept in fixed position during magnification variation or focusing, and wherein, in transition from the photographing state to the non-photographing state, at least the reflective surface moves so that at least part of the movable group is stored into a space left after the movement of the reflective surface.