Mirror Deformations Due To Thermal Expansion Of Inserts Bonded To Glass

Bijan Iraninejad; Jacob Lubliner; Terry Mast; Jerry Nelson

doi:10.1117/12.939832

3 June 1987 Mirror Deformations Due To Thermal Expansion Of Inserts Bonded To Glass

Bijan Iraninejad, Jacob Lubliner, Terry Mast, Jerry Nelson

Proceedings Volume 0748, Structural Mechanics of Optical Systems II; (1987) https://doi.org/10.1117/12.939832
Event: OE LASE'87 and EO Imaging Symposium, 1987, Los Angeles, CA, United States

Abstract

The support of mirrors often requires bonding inserts into holes in the mirror material. Temperature change and shrinkage of the bonding material and temperature change of the insert produce stresses that deform the optical surface. Using both classical analytical methods and finite element techniques the deformation of plates and shells due to temperature and shrinkage effects are computed. The depth of the hole can be chosen to minimize the deflection of the optical surface. A variety of geometries which include hole diameters both large and small compared to the plate thickness are studied. In addition to the general formulation of the problem, some quantitative results for the Keck Observatory Ten Meter Telescope mirror segments are presented.

Citation Download Citation

Bijan Iraninejad, Jacob Lubliner, Terry Mast, and Jerry Nelson "Mirror Deformations Due To Thermal Expansion Of Inserts Bonded To Glass", Proc. SPIE 0748, Structural Mechanics of Optical Systems II, (3 June 1987); https://doi.org/10.1117/12.939832

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