Calibrations and idiosyncrasies of microlensed CCD cameras

John A. Penkethman

doi:10.1117/12.368214

5 October 1999 Calibrations and idiosyncrasies of microlensed CCD cameras

John A. Penkethman

Proceedings Volume 3779, Current Developments in Optical Design and Optical Engineering VIII; (1999) https://doi.org/10.1117/12.368214
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

Modern CCD cameras that are typically produced in high volume for consumer and machine vision applications can be used as precisely calibrated image sensors. New CCD chips with on-chip micro lens arrays, however, have some characteristics that limit design choices where precise illumination uniformity is required. The micro lenses cause vignetting and limit the angular aperture of each pixel. This paper measures vignetting and consequent shading for a typical micro lensed CCD chip. Nevertheless, when properly designed, camera system employed these advanced CCd chips can be precisely calibrated with respect to face plate irradiance.

Citation Download Citation

John A. Penkethman "Calibrations and idiosyncrasies of microlensed CCD cameras", Proc. SPIE 3779, Current Developments in Optical Design and Optical Engineering VIII, (5 October 1999); https://doi.org/10.1117/12.368214

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