Patent ID: 7493039

Claim:
A camera comprising: an objective lens where an imaging light enters; image pickup means having a photosensitive surface that receives the imaging light directed after being passed through said objective lens to form an image, the photosensitive surface having different kinds of elements arranged in an array that are for generating predetermined signals in response to imaging light in different wavelengths; and image processing means for generating image data that are used to produce, on a predetermined display, an image taken by said image pickup means according to received said predetermined signals to send them to the outside, said objective lens being adapted to receive imaging lights from each of a plurality of subject surface segments located at different depths from said photosensitive surface and form an image on said photosensitive surface using chromatic aberration, while said photosensitive surface is positioned at a fixed distance with respect to a sample that produces the imaging light, each of the imaging lights having a wavelength identical to one of said different wavelengths and being different from each other, said image processing means being adapted to generate, according to said predetermined signals generated by said different kinds of elements, said image data with which achromatic images can be produced on the predetermined display.