Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Neural network based surface shape modeling of stressed lap optical polishing

Not Accessible

Your library or personal account may give you access

Abstract

It is crucially important to establish an accurate model to represent the relationship between the actuator forces and the lap surface changes when polishing a large and highly aspheric optical surface. To facilitate a computer-controlled optical polishing process, a neural network based stressed lap surface shape model was developed. The developed model reflects the dynamic deformation of a stressed lap. The original data from the microdisplacement sensor matrix were used to train the neural network model. The experimental results show that the proposed model can represent the surface shape of the stressed lap accurately and provide an analytical model to be used to polish the stressed lap control system and the active support system for a large mirror.

© 2010 Optical Society of America

Full Article  |  PDF Article
More Like This
Deformation verification and surface improvement of active stressed lap for 4  m-class primary mirror fabrication

Hongshen Zhao, Xiaojin Li, Bin Fan, and Zhige Zeng
Appl. Opt. 54(10) 2658-2664 (2015)

Practical design and performance of the stressed-lap polishing tool

S. C. West, H. M. Martin, R. H. Nagel, R. S. Young, W. B. Davison, T. J. Trebisky, S. T. DeRigne, and B. B. Hille
Appl. Opt. 33(34) 8094-8100 (1994)

Finite element analysis simulation and experimental verification of the stressed lap’s deformation accuracy

Xiao Luo, Ligong Zheng, and Xuejun Zhang
Appl. Opt. 50(5) 782-787 (2011)

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 Optica member, or as an authorized user of your institution.

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

Figures (11)

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

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

Equations (9)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved