Imaging apparatus, lens unit, and imaging unit

摘要

An imaging apparatus comprises an optical imaging system 110, an image sensor 101, and an image processor 103. The optical imaging system 110 has an aberration control element 103 for generating a predetermined aberration. The optical imaging system 110 forms an optical image. The image sensor 101 generates an image signal corresponding to the optical image. The image processor 103 performs image processing on the image signal so as to enhance a degraded image characteristic on the basis of the predetermined aberration. The aberration control element 112 causes a response of an optical transfer function of the optical imaging system 110 to be zero at a first spatial frequency. The first spatial frequency is below a Nyquist frequency of the image sensor 201.

主权项

1. An imaging apparatus comprising:
an optical imaging system having an aberration control element for generating a predetermined aberration, the optical imaging system forming an optical image; an image sensor for generating an image signal corresponding to the optical image; and an image processor for performing image processing on the image signal so as to enhance an image characteristic on the basis of the predetermined aberration, the image characteristic having been degraded due to the predetermined aberration, the aberration control element causing a response of an optical transfer function to be zero for at least a predetermined subject distance of the optical imaging system at a first spatial frequency below a Nyquist frequency of the image sensor.