Lapping with loose abrasives in lens manufacturing

Omer Faruk Farsakoglu; Hikmet Kocabas; Mutlu Bayar; D. Mehmet Zengin

doi:10.1117/12.405238

24 October 2000 Lapping with loose abrasives in lens manufacturing

Omer Faruk Farsakoglu, Hikmet Kocabas, Mutlu Bayar, D. Mehmet Zengin

Proceedings Volume 4093, Current Developments in Lens Design and Optical Systems Engineering; (2000) https://doi.org/10.1117/12.405238
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

This study deals with lapping process with loose abrasives in large diameter lens manufacturing. Loose abrasive lapping, is a three-body abrasive process in which a fixed load is applied to a plate that presses a slurry consisting of a coolant and abrasive particles onto the optical surface being manufactured. This process is analyzed by examination of the influence of optical glass material parameters on material removal and surface roughness for lens manufacturing conditions. The model established for this analysis uses the concept of lateral fracture, which is based on removal of optical glass material by rolling abrasive particles. The particles remove glass material by lateral cracking. The concept of lateral fracture by rolling abrasive particles is verified as the lapping model, which was found to give a good description of the experimental results. Removal rates and lapping time values at the conventional removal depth are found and which will allow the automation of lapping process for lens manufacturing. The abrasive mineral Barton Garnet was used in the lapping experiments.

Citation Download Citation

Omer Faruk Farsakoglu, Hikmet Kocabas, Mutlu Bayar, and D. Mehmet Zengin "Lapping with loose abrasives in lens manufacturing", Proc. SPIE 4093, Current Developments in Lens Design and Optical Systems Engineering, (24 October 2000); https://doi.org/10.1117/12.405238

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