Mr. John A. Penkethman Profile

John A. Penkethman

Senior Staff Systems Engineer

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Author

Publications (5)

Proceedings Article | 5 October 1999 Paper

Calibrations and idiosyncrasies of microlensed CCD cameras

John Penkethman

Proceedings Volume 3779, (1999) https://doi.org/10.1117/12.368214

KEYWORDS: Charge-coupled devices, Cameras, Calibration, CCD cameras, Lamps, Machine vision, Vignetting, CCD image sensors, Imaging systems, Frame grabbers

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Proceedings Article | 23 August 1996 Paper

Optomechanical tolerancing by means of system modeling with affine transformations

John Penkethman

Proceedings Volume 2774, (1996) https://doi.org/10.1117/12.246656

KEYWORDS: Optical components, Tolerancing, Collimation, Mirrors, Lenses, Systems modeling, Imaging systems, Lithium, Optical imaging, Paraxial approximations

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Proceedings Article | 15 September 1995 Paper

Matrix method for optomechanical tolerancing of finite conjugate optical imaging systems

John Penkethman

Proceedings Volume 2540, (1995) https://doi.org/10.1117/12.219531

KEYWORDS: Silicon, Mirrors, Prisms, Optical components, Information operations, Imaging systems, Radon, Tolerancing, Optical imaging, Sensors

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Proceedings Article | 30 September 1994 Paper

Family of fiber based confocal and quasi-confocal microprobes

John Penkethman

Proceedings Volume 2263, (1994) https://doi.org/10.1117/12.188017

KEYWORDS: Semiconducting wafers, Sensors, Head, Confocal microscopy, Light, Signal detection, Mirrors, Light scattering, Optical fibers, Scattering

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Proceedings Article | 16 September 1993 Paper

Dual magnification video microscope for machine vision

John Penkethman, Stephen Motta

Proceedings Volume 1998, (1993) https://doi.org/10.1117/12.156622

KEYWORDS: Silicon, Prisms, Lenses, Beam splitters, Microscopes, Optical benches, Information operations, Lithium, Optical alignment, Optomechanical design

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