Patent attributes
According to an embodiment of the present disclosure, an image capturing optical system includes a first lens group having a positive refractive power and disposed along an optical axis and to face an object. A second lens group has a negative refractive power and disposed along the optical axis and adjacent to the first lens group, and second lens group includes a focus correction lens to correct a difference in a focused position according to a variation in a position of the object. A third lens group has a positive refractive power and disposed along the optical axis. A subsequent lens group adjacent the third lens group and disposed along the optical axis and to face an image of the object, and the lens group subsequent to the second lens group includes a camera shake correction lens to move in a direction perpendicular to the optical axis.
