An Instrument for Inspecting Aspheric Optical Surfaces and Components Project

Metadata Updated: July 8, 2015

This is a Phase I proposal to develop an extremely versatile optical inspection tool for determining the optical figure of aspheric optical components, such as test objects, aspheric mirrors, segment mirrors, and optical components that are not easily inspected with conventional interferometry. Modern optical design and manufacturing procedures have begun using such components more and more in routine applications to improve optical system capability. Since the optical tolerances achieved in the manufacture of such components have an important bearing on the performance capabilities of the systems that employ them, instrumentation and techniques for precision metrology are vital for quality assurance. Inspection tools required for these types of optical components have lagged the capability to manufacture them. The proposed work will demonstrate a technique for full aperture precision metrology of such optical components and is anticipated to yield instrument designs that incorporate an extremely robust, reliable, and accurate wavefront sensor for precision metrology of a transmitted or reflected wavefront, together with a projection system that covers the full aperture. The proposed wavefront sensor comprises a unique combination of digital holographic interferometry, Hartmann wavefront sensing, and adaptive optics that results in an extremely flexible tool. For the Phase I study, we propose to employ an existing wavefront sensor instrument to accelerate progress towards production of useful experimental data from tests conducted on existing optical elements.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources



Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date April 9, 2015
Metadata Updated Date July 8, 2015
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_5846
Paul Mexcur
Maintainer Email
Id {$oid: 55942a93c63a7fe59b498b27}
Public Access Level public
Bureau Code 026:00
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id 8842025f-b3ba-4402-8514-6f12637565c8
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2007-01-01T00:00:00Z
Homepage URL
Language en-US
Data Last Modified 2015-03-12
Program Code 026:027
Publisher Hierarchy National Aeronautics and Space Administration > Space Technology Mission Directorate
Related Documents,,,,,,,
Source Datajson Identifier True
Source Hash 2f95d30958a053efff54f28bee8e660fa980919e
Source Schema Version 1.1
Temporal 2007-01-01T00:00:00Z/2007-07-01T00:00:00Z

Didn't find what you're looking for? Suggest a dataset here.