Patent ID: 6714361
Filing Date: 2004-03-30
Classification: G02B

Abstract:
An optical system for distorted imaging of an object, especially for photographic cameras, said optical system comprising: at least one lens, where at least one lens has at least one asymmetric aspherical optical surface and/or at least one diffractive element, where at least one diffractive element has a surface with asymmetric diffractive structure and/or at least two lenses in mutually general orientation in space, while the following relations apply to orthogonal co-ordinates (x, y, z) of any point of an object whose image is to be distorted, and the orthogonal co-ordinates (xâ€², yâ€², zâ€²) of the image of this point with the required distortion: xâ€²=&Sum;i=1i=N&it;â€ƒ&it;ai&it;fi&af;(x,y,z),yâ€²=&Sum;i=1i=N&it;â€ƒ&it;bi&it;gi&af;(x,y,z),zâ€²=&Sum;i=1i=N&it;â€ƒ&it;ci&it;hi&af;(x,y,z)where N&gE;1 is an integer number, ai, bi, ci are weight constants of distortion in the appropriate direction and fi(x,y,z), gi(x,y,z), hi(x,y,z) are functions for ensuring achievement of the chosen required image distortion.