Diamond Turning Wavefront Correctors: Opening New Optical Design Flexibilities

S R Patterson; T T Saito; A B Meinel; M P Meinel; J E Stacy

doi:10.1117/12.939509

13 February 1987 Diamond Turning Wavefront Correctors: Opening New Optical Design Flexibilities

S R Patterson, T T Saito, A B Meinel, M P Meinel, J E Stacy

Proceedings Volume 0676, Ultraprecision Machining and Automated Fabrication of Optics; (1987) https://doi.org/10.1117/12.939509
Event: 30th Annual Technical Symposium, 1986, San Diego, United States

Abstract

A wavefront corrector (WFC) is a component in an optical system Which corrects for errors of an earlier optic which is imaged onto it. WFC's can be used in two-stage optics in which a primary mirror with large surface errors can be incorporated in the "fovea] mode" to make an ultra-wide-field system and yield an upgraded high acuity image. WFC's, therefore, offer significant cost advantage for fabricating large telescope primaries. We report the JPL-LLNL first embodiment of this concept which includes a non-axisymmetric WFC containing greater than a wave of astigmatism and two waves of coma (1 wave = 0.63 μm). The 6 cm diameter WFC was diamond turned on a super invar substrate covered with 13% phosphorous electroless nickel. Metrology of the WFC with this great an error to 10th wave accuracy was challenging.

Citation Download Citation

S R Patterson, T T Saito, A B Meinel, M P Meinel, and J E Stacy "Diamond Turning Wavefront Correctors: Opening New Optical Design Flexibilities", Proc. SPIE 0676, Ultraprecision Machining and Automated Fabrication of Optics, (13 February 1987); https://doi.org/10.1117/12.939509

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available