Phase Grating for High-Precision Ronchi Testing and Method for Fabricating the Same.

reportActive / Technical Report | Accession Number: ADD014801 | Need Help?

Abstract:

A clear phase grating having alternating parallel lands and grooves of unequal widths on its surface produces narrow fringes with well defined edges when used in a traditional Ronchi test arrangement.

Author(s):
Hales, Walter L.
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent application filed 19 Nov 90,
Pagination:
0011

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-618 201
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
GRATINGS(SPECTRA)
Field(s)/Group(s):
Optics
Keyword(s):
*Gratings(Spectra), *Patent applications, Ronchi tests
Report Date:
1990 Nov 19