An experimental study on the image quality loss of an objective caused by assemblage stress

Xueting Duan; Jaguang Bai; Renkui Zhou

doi:10.1117/12.674349

9 June 2006 An experimental study on the image quality loss of an objective caused by assemblage stress

Xueting Duan, Jaguang Bai, Renkui Zhou

Proceedings Volume 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 61493D (2006) https://doi.org/10.1117/12.674349
Event: 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies, 2005, Xian, China

Abstract

Stress birefringence caused by assemblage stress can change the light through the glass into tow beams in different polarization mode, so the magnitude of the stress birefringence can be measured by a polarimeter. The Modulation Transfer Function (MTF) curve can be looked as the accurate result of image quality of an objective, in this article, we make an analysis of the correlation in theory, and list the result of the experiment. The MTF curve shows the obvious difference before the stress caused by assemblage was released and after. The stress caused by assemblage produces the additive wave aberration of the light. This additive wave aberration then cause the image quality loss of the objective. Measurement data indicates another objective as contrast has no stress in any of its units, so the MTF curve was almost the same as it was designed. The most serious loss of the image quality by assemblage stress is the falloff of the vertical curve and the horizontal curve of MTF, especially at the edge of the view field of the objective, and once the stress of the lens was released, this falloff disappears at the same time. So our conclusion is before an objective was assembled, each lens must be test by a polarimeter. If the stress can't be accepted, the stress should be released forwardly. And, this kind of test should also be implemented before the stickiness of each lens of the objective for the final image quality.

Citation Download Citation

Xueting Duan, Jaguang Bai, and Renkui Zhou "An experimental study on the image quality loss of an objective caused by assemblage stress", Proc. SPIE 6149, 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 61493D (9 June 2006); https://doi.org/10.1117/12.674349

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