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Back to the OSAC Lexicon

interference figure

pattern observed during conoscopic observation of an anisotropic material which consists of a combination of extinction positions and interference colors corresponding to the full cone of directions by which the sample is illuminated. 

DISCUSSION—Conoscopic observations are typically made by insert- ing a Bertrand lens into the body tube or by removing an eyepiece and viewing down the body tube.

Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
ANSI/ASTM E1732 Standard Terminology Relating to Forensic Science. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2025. Source link
Reprinted, with permission, from ASTM E1732 Standard Terminology Relating to Forensic Science, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard is available from ASTM International, https://www.astm.org
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