Measurement of curvature radius using phase retrieval with volume speckle field

Mingguang Shan; Pei Zhi; Zhi Zhong; Bo Zhu

doi:10.1117/12.885426

28 December 2010 Measurement of curvature radius using phase retrieval with volume speckle field

Mingguang Shan, Pei Zhi, Zhi Zhong, Bo Zhu

Proceedings Volume 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation; 75442A (2010) https://doi.org/10.1117/12.885426
Event: Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 2010, Hangzhou, China

Abstract

A laser beam with an ideal wavefront passes through a random amplitude mask to produce speckle fields. The speckle fields then illuminate the measured lens and are modulated by its shape to further scatter the speckle fields. The shape of the lens can be measured from the sequential intensity measurements of volume speckle field and phase retrieval based on angular-spectrum propagation technique. The curvature radius of the lens is directly derived from the shape function. In comparison with the existing measurement methods, the method proposed has a simple set-up, a strong environmental anti-interference capability and a low cost. Experimental results indicate that the proposed method is an effective approach which can be used for the measurement of radius at low cost.

Citation Download Citation

Mingguang Shan, Pei Zhi, Zhi Zhong, and Bo Zhu "Measurement of curvature radius using phase retrieval with volume speckle field", Proc. SPIE 7544, Sixth International Symposium on Precision Engineering Measurements and Instrumentation, 75442A (28 December 2010); https://doi.org/10.1117/12.885426

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