Results 81 to 90 of about 21,471 (126)
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Journal of the Optical Society of America, 1978
Recent researches have revealed that there exists an intimate connection between radiometry and the theory of partial coherence. In this paper a review is presented of some of these developments. After a brief discussion of various models for energy transport in optical fields and of some of the basic concepts of the classical theory of optical ...
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Recent researches have revealed that there exists an intimate connection between radiometry and the theory of partial coherence. In this paper a review is presented of some of these developments. After a brief discussion of various models for energy transport in optical fields and of some of the basic concepts of the classical theory of optical ...
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1983
This chapter presents a summary of many of the important advances in the art and science of the use of solar radiation measurements. Emphasis is placed on those advances which will have the most impact in the utilization of solar energy. The work cited is mainly that done since 1977.
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This chapter presents a summary of many of the important advances in the art and science of the use of solar radiation measurements. Emphasis is placed on those advances which will have the most impact in the utilization of solar energy. The work cited is mainly that done since 1977.
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Update on EUV radiometry at PTB
SPIE Proceedings, 2016The development of technology infrastructure for EUV Lithography (EUVL) still requires higher levels of technology readiness in many fields. A large number of new materials will need to be introduced. For example, development of EUV compatible pellicles to adopt an approved method from optical lithography for EUVL needs completely new thin membranes ...
Laubis, Christian +12 more
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Temperature Measurement by Microwave Radiometry
2008 IEEE Instrumentation and Measurement Technology Conference, 2008Temperature is an important parameter in the industrial world. For example, temperature control is of a greater concern in food processing industry for safety reasons as well as for product quality. Recently, microwave processing of powder metallurgical bodies has been shown to be very promising.
Cresson, Pierre-Yves +5 more
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2017
Radiometry and photometry are similar terms in that both deal with the laws governing the transfer of optical radiation from one location to another—with or without the aid of optical systems. Traditionally, these subjects have included the description of the geometrical laws of radiation transfer, the behavior of radiant energy when transferred ...
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Radiometry and photometry are similar terms in that both deal with the laws governing the transfer of optical radiation from one location to another—with or without the aid of optical systems. Traditionally, these subjects have included the description of the geometrical laws of radiation transfer, the behavior of radiant energy when transferred ...
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Corrections to classical radiometry
Journal of the Optical Society of America A, 1993The laws of classical radiometry (the conservation of brightness along rays, etc.) can be derived as an approximation based on a statistical treatment of Maxwell’s equations.1 ...
Roland Winston, Robert G. Littlejohn
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2009
2.1 INTRODUCTION In Chapter 1, we showed how the position and size of the Gaussian image of an object formed by an imaging system can be determined from the radii of curvature of its surfaces and the refractive indices of the media around them. However, we did not consider the sizes of the imaging elements or the apertures in the system. Accordingly,
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2.1 INTRODUCTION In Chapter 1, we showed how the position and size of the Gaussian image of an object formed by an imaging system can be determined from the radii of curvature of its surfaces and the refractive indices of the media around them. However, we did not consider the sizes of the imaging elements or the apertures in the system. Accordingly,
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2013
In this book the difference operator 'd' is used to denote 'a small quantity of ...'. This 'small quantity' of one variable is almost always related to a 'small quantity' of another variable in some physical dependency. For example, irradiance is defined as E = dΦ/dA, which means that a small amount of flux dΦ impinges on a small area dA, resulting in ...
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In this book the difference operator 'd' is used to denote 'a small quantity of ...'. This 'small quantity' of one variable is almost always related to a 'small quantity' of another variable in some physical dependency. For example, irradiance is defined as E = dΦ/dA, which means that a small amount of flux dΦ impinges on a small area dA, resulting in ...
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Radiometry in the Optical Domain
2016The considerable progress in instrumentation and in the development of methods for the processing and analysis of data places remote sensing at the center of various international programs for the surveillance and tracking of climatic and anthropogenic changes and effects on the environment.This volume presents optical imaging and LiDAR systems: their ...
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2012
6.1 Introduction The measurement of radiant power is an important aspect of astrophysical research. The material in the previous chapters concentrates on image location, size, orientation, geometric image quality, throughput or etendue, and transmittance.
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6.1 Introduction The measurement of radiant power is an important aspect of astrophysical research. The material in the previous chapters concentrates on image location, size, orientation, geometric image quality, throughput or etendue, and transmittance.
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