Abstract

As an extension of the knife-edge test, a noninterferometric method for inspecting circularly symmetric aspheres is proposed in which the test surface is illuminated by a spherical wave. When a small circular stop is placed around the curvature center of the best-fitting sphere, only rays characteristic for the deviation from a perfect sphere remain unobstructed. An image of the tested surface is thereby obtained, showing light and dark regions whose boundaries are correlated to the surface profile, the stop size, and the stop position along the symmetry axis. The experiment has been carried out with a paraboloid.

© 1998 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Catadioptric null test of ultra-deep concave aspheric lens in wide-field optical system

Xing Zhong and Guang Jin
Appl. Opt. 52(19) 4738-4742 (2013)

Surface shape evaluation with a corneal topographer based on a conical null-screen with a novel radial point distribution

Manuel Campos-García, Cesar Cossio-Guerrero, Víctor Iván Moreno-Oliva, and Oliver Huerta-Carranza
Appl. Opt. 54(17) 5411-5419 (2015)

Profilometry of toroidal surfaces with an improved Ronchi test

Santiago Royo, Josep Arasa, and Carles Pizarro
Appl. Opt. 39(31) 5721-5731 (2000)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription