【国外标准】 Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
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标准简介
适用范围:
5.1 The optical angular deviation of flat transparent parts, such as aircraft windshields, canopies, cabin windows, and visors, can be measured using these methods. Angular deviation in a windscreen or visor can cause objects to appear at a location different from where they actually are. Variations in angular deviation can be used to characterize distortion and magnification in transparent parts. Also, angular deviation measurements made from the typical right and left eye positions for a windscreen or other transparent medium can be used to determine binocular disparity differences (see Test Method F1181).1.1 This test method covers the measurement of the optical angular deviation of a light ray imposed by flat transparent parts such as a commercial or military aircraft windshield, canopy, or cabin window.1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.2.1 Exceptions—The values given in parentheses are for information only. Also, print size is provided in inch-pound measurements.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
标准号:
ASTM F2469-20
标准名称:
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
英文名称:
Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method标准状态:
Active-
发布日期:
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实施日期:
出版语种:
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