Immervision, Inc.

Shirley Chan

Simon Thibault

Jocelyn Parent

Pierre Konen

Patrice Roulet

Xiaojun Du

Valentin Bataille

Xavier Dallaire

Zhenfeng Zhuang

Ebrahim Mortazy

Manuel Magini

Viacheslav Natashyn

Kevin Miao

Marie-Pier Bellemare

Marcia Griffith

Sophie Gigliotti

A method for designing an optical system for providing reliable, robust and successful realization of a distortion variation function is presented. In a preferred embodiment, the proposed distortion variation optical system includes at least two non-symmetrical elements, which are moving in the transverse direction. The proposed freeform lens contains two transmissive refractive surfaces. The freeform elements designed with this method have preferably a flat surface and a non-symmetrical freeform surface. The two plano-surfaces are preferably made to face each other, so that a miniature camera can be offered. The value of the non-symmetrical freeform surface is used to produce variable optical power when the two freeform elements undergo a relative movement in the vertical direction. Using this method, an optical system with an active distortion, smaller form factor, and better imaging quality can be obtained.

Optical system with dynamic distortion using freeform elements

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Candiac, Canada

Shirley Chan