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67.2: Distortion Correction Using a Freeform Lens for Projection onto a Non‐planar Surface
Author(s) -
Hou Jia,
Li Haifeng,
Zheng Zhenrong,
Liu Xu
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05936.x
Subject(s) - distortion (music) , projection (relational algebra) , planar , surface (topology) , lens (geology) , planar projection , mathematics , optics , computer science , physics , geometry , computer graphics (images) , orthographic projection , algorithm , telecommunications , amplifier , bandwidth (computing)
The partial differential equation method of designing a freeform lens which can help to project images onto a formula describable non‐planar surface with very low distortion was proposed. Projection on sphere was taken as an example. The distortion and the MTF of the projection system were analyzed in detail.