Study on mathematical modeling for optical pickup virtual analyzer

Xuemin Cheng; Jianshe Ma; Shuang Yan

doi:10.1117/12.757844

28 November 2007 Study on mathematical modeling for optical pickup virtual analyzer

Xuemin Cheng, Jianshe Ma, Shuang Yan

Proceedings Volume 6834, Optical Design and Testing III; 68340N (2007) https://doi.org/10.1117/12.757844
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Optical pickup is an optical apparatus to record and/or reproduce information from an optical disc. It is a kind of large aperture optical system of diffraction limited. As a product of mass production, its accuracy is guaranteed by reasonable balance among fabricating and assembling tolerances of optical, mechanical and optoelectronic elements. One method employed is conduct sensitivity analyses to identify tolerances for each element, which usually limits the manufacturability and cost of optical pickup. In this paper, the method of optical pickup virtual analyzer is proposed to improve the manufacturability. The mathematical modeling used for virtual analyzer is established based on the system image quality and laser spot characteristics on photo detector. First, a three-dimensional virtual optical pickup model is established, in which the characteristics and fabricating and assembling errors of each optical element (beam splitter, mirror, collimator and objective ), optoelectronic element (laser diode and photo diode)and mechanical support element are described. The optical disk is represented as a reflective surface. The photo diode integrated circuit could work virtually so that it could receive the laser spot reflected from the optical disk. The photosensitive division on it would differentiate the laser spot on it and give the signals according to requirements of the real analyzer. The virtual analyzer can help combine suitable elements of looser tolerance for optical pickup assembling and improve the manufacturability efficiently. The mathematical model is developed using the Macro-PLUS language and a CD/DVD optical pickup virtual analyzer is successfully optimized with the model.

Citation Download Citation

Xuemin Cheng, Jianshe Ma, and Shuang Yan "Study on mathematical modeling for optical pickup virtual analyzer", Proc. SPIE 6834, Optical Design and Testing III, 68340N (28 November 2007); https://doi.org/10.1117/12.757844

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optics manufacturing

Optical components

Mathematical modeling

Mirrors

Objectives

Collimators

Optical discs

Show All Keywords

Keywords/Phrases

Search In:

Publication Years