Introduction to the Optical Transfer Function


Book Description

This work covers spatial frequency, spread function, wave aberration, and transfer function - and how these concepts are related in an optical system, how they are measured and calculated, and how they may be useful.







The Optical Transfer Function of Imaging Systems


Book Description

The Optical Transfer Function of Imaging Systems deals extensively with the theoretical concept of the optical transfer function (OTF), its measurement, and application to imaging devices. The OTF is a mathematical entity describing how well the subject is transferred into an image via the lens. The book focuses on the practical aspects of using and measuring the OTF. It presents the background physics necessary to understand and assess the performance of the great proliferation of electro-optical systems, including image intensifiers, video cameras, and thermal imagers. Assuming a senior undergraduate level of optics knowledge, the book is suitable for graduate courses in optics, electro-optics, and photographic science. In addition, it is a practical guide for systems designers who require a means of assessing and specifying the performance of imaging systems. It is also of interest to physicists and engineers working in all areas of imaging.




Modulation Transfer Function in Optical and Electro-optical Systems


Book Description

This tutorial introduces the theory and applications of MTF, used to specify the image quality achieved by an imaging system. It covers basic linear systems theory and the relationship between impulse response, resolution, MTF, OTF, PTF, and CTF. Practical measurement and testing issues are discussed.




The Optical Transfer Function


Book Description













GB/T 4315.1-2009 Translated English of Chinese Standard (GBT4315.1-2009)


Book Description

This Document specifies the maximum allowable external leakage rate and measurement test methods for welding, cutting and allied process equipment. This Document is applicable to independent welding and cutting equipment parts or devices from the hose connection (the outlet of the gas cylinder valve or the connection and of the gas supply station) at the gas supply end to the gas outlet of the welding and cutting torch.