Patent ID: 9001218
Filing Date: 2015-04-07
Classification: G02B,G03B,H04N

Abstract:
1. A camera module comprising: optical means including a lens section made of at least one optical lens; sensor means including an image pickup element converting, into an electrical signal, light that enters the image pickup element through the lens section; and image stabilization means correcting misalignment of an optical axis with respect to the image pickup element, by shifting relative positions of the optical means and the sensor means in parallel to an image pickup plane of the image pickup element in accordance with an inclination of a main body of the camera module, the lens section having an image height-optical distortion curve in which an optical distortion is a positive maximum value in an intermediate image height region and the optical distortion gradually decreases from the maximum value as an image height approaches a maximum image height, the optical distortion having an amount of decrease at the maximum image height and in the vicinity of the maximum image height, which amount is determined so that (a) an amount of change in optical distortion produced by the inclination of the main body of the camera module and (b) an amount of change in optical distortion produced by a shift of the relative positions of the optical means and the sensor means are substantially equal to each other and cancel each other, the shift being performed by the image stabilization means.