Null testing of nonrotational symmetry transmission optical freeform: design, modeling, and inspection on the basis of Fermat principles

Gufeng Qiu; Xudong Cui

doi:10.1117/1.OE.54.11.115112

24 November 2015 Null testing of nonrotational symmetry transmission optical freeform: design, modeling, and inspection on the basis of Fermat principles

Gufeng Qiu, Xudong Cui

Author Affiliations +

Optical Engineering, Vol. 54, Issue 11, 115112 (November 2015). https://doi.org/10.1117/1.OE.54.11.115112

Abstract

We present a general design method for a type of transmission freeforms without rotational symmetry and achieve the null testing by putting a well-designed Fermat reflector on the transmitting optical path. The design principle of the reflector is given, and an eccentric spherical surface with 1-mm deviation is used as an example of testing freeform. We fabricated the reflector and the freeform with the single-point diamond turning machine. Both conventional interference inspection and our approach give consistent results. The design error is less than 10⁶ mm, and the measurement accuracy is nearly completely determined by the fabrication precision. This approach can also be applied to the inspections of reflecting freeforms with low costs.

Citation Download Citation

Gufeng Qiu and Xudong Cui "Null testing of nonrotational symmetry transmission optical freeform: design, modeling, and inspection on the basis of Fermat principles," Optical Engineering 54(11), 115112 (24 November 2015). https://doi.org/10.1117/1.OE.54.11.115112

Published: 24 November 2015

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

Members: $24.00

Non-members: $28.00 ADD TO CART

JOURNAL ARTICLE
4 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Reflectors

Inspection

Freeform optics

Optical design

Single point diamond turning

Reflector design

Optical fiber cables

Show All Keywords

Keywords/Phrases

Search In:

Publication Years