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Standard Test Method for Measuring Optical Angular Deviation of Transparent Parts Using the Double-Exposure Method
Automaticky přeložený název:
Standardní zkušební metoda pro měření optického úhlová odchylka průhlednými částmi, pomocí metody Double - expozice
NORMA vydána dne 1.3.2005
Označení normy: ASTM F2469-05
Poznámka: NEPLATNÁ
Datum vydání normy: 1.3.2005
Kód zboží: NS-53945
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
angular deviation, canopy, grid board, optical deviation, transparency, ICS Number Code 17.180.20 (Colours and measurement of light)
Significance and Use | ||||||
The optical angular deviation of 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 F 1181). |
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1. Scope | ||||||
1.1 This test method covers the measurement of the optical angular deviation of a light ray imposed by 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 the standard. The values given in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||
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