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Electronics

Optoelectronics

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Displaying 326 - 350 of 389

NIST Stray Light Elimination Tube Prototype

March 1, 2002
Author(s)
Paul A. Boynton, Edward F. Kelley
Electronic projection displays involve the projection of an image, usually through a lens system, onto a viewing screen. Metrics such as light output, contrast, non-uniformity, and color gamut are used to describe the resultant image quality. although

SAE J1757 Committee Report on Proposed Reflection Measurement Methods

November 1, 2001
Author(s)
Edward F. Kelley
This is a report to the committee regarding reflection measurements that impact the current draft standard. Diffuse reflectance measurements are compared to transmitting diffuser measurements of several flat panel displays and samples in attempts to show

Microdisplay Metrology Research at NIST

September 14, 2001
Author(s)
Paul A. Boynton
Measuring the optical characteristics of a microdisplay produces challenges to traditional display metrology. When using light-measuring devices to measure scenes having high contrasts or wide color variations, the instruments suffer the effects of veiling

Measuring the Frequency Response of Gigabit Chip Photodiodes

September 1, 2001
Author(s)
Paul D. Hale, Tracy S. Clement, Dylan F. Williams, E. Balta, N. D. Taneja
We describe a calibratin and measurement procedure for determining the intrinsic frequency response fo gigabit chip photodiodes embedded in simple test fixtures. The procedure is unique because we make the measurements in the time-domain using a calibrated

Compensation for Stray Light in Projection Display Metrology

June 30, 2001
Author(s)
Paul A. Boynton, Edward F. Kelley
Electronic projection display specifications are often based on measurements made in ideal darkroom conditions and assume ideal measurement instrumentation. However, not everyone has access to such a facility, and not always will the light-measuring

Frequency Response Metrology for High-Speed Optical Receivers

March 1, 2001
Author(s)
Paul D. Hale, Tracy S. Clement, Dylan F. Williams
There are two types of optical sources whose modulation can be measured or calculated from fundamental principles: the hererodyne beat between two single- frequency lasers (frequency-domain) and the short pulse from a mode-locked laser (time-domain). While

Impediments to Reproducibility in Display Metrology

January 11, 2001
Author(s)
Edward F. Kelley
Most people are surprised to learn of the complexities of measuring the performance of electronic displays. Serious errors are encountered in even seemingly simple measurements if we blithely measure displays without being aware of the pitfalls. We discuss
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