Focus sensing method with improved pattern noise rejection

Daniel R. Marshall

doi:10.1117/12.45931

1 July 1991 Focus sensing method with improved pattern noise rejection

Daniel R. Marshall;

Author Affiliations +

Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45931
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States

Abstract

Focus error sensing is a subject which has received much effort and ingenuity as the optical data storage industry has matured, yet there is still a need for techniques which provide improved accuracy, responsiveness and noise immunity. This paper discusses a class of techniques which demonstrate common mode rejection of signal corruption, and a particular member of that class which is based on lossless reflection at an interface.

Citation Download Citation

Daniel R. Marshall, "Focus sensing method with improved pattern noise rejection", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); doi: 10.1117/12.45931; https://doi.org/10.1117/12.45931

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years