Nodal And Focal Surface Mapping Using A Linear Array

Judson B. Estes; David G. Labick; Robert M. Williamson; William MacIntyre

doi:10.1117/12.942201

4 February 1988 Nodal And Focal Surface Mapping Using A Linear Array

Judson B. Estes, David G. Labick, Robert M. Williamson, William MacIntyre

Proceedings Volume 0832, High Speed Photography, Videography, and Photonics V; (1988) https://doi.org/10.1117/12.942201
Event: 31st Annual Technical Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, San Diego, CA, United States

Abstract

As a basis for calculating lens correction curves, the front and rear focal and nodal surfaces are mapped for lenses used in film analysis. The image of a collimated source is read as a function of incident angle using a linear CCD. The front nodal point is used as a camera position and the measured angular variation provides a fine correction td the object distance. The resulting corrections allow accurate spatial locations to be calculated for target objects imaged at the film plane.

Citation Download Citation

Judson B. Estes, David G. Labick, Robert M. Williamson, and William MacIntyre "Nodal And Focal Surface Mapping Using A Linear Array", Proc. SPIE 0832, High Speed Photography, Videography, and Photonics V, (4 February 1988); https://doi.org/10.1117/12.942201

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