Light-weight objective lens for DVD pickup

Cheng-Huan Chen; Yi-Chen Tsai; Han-Ping David Shieh

doi:10.1117/12.574282

10 February 2005 Light-weight objective lens for DVD pickup

Cheng-Huan Chen, Yi-Chen Tsai, Han-Ping David Shieh

Proceedings Volume 5638, Optical Design and Testing II; (2005) https://doi.org/10.1117/12.574282
Event: Photonics Asia, 2004, Beijing, China

Abstract

The size and weight of the pickup head will influence the form factor and the bandwidth of DVD. A MEMS-type DVD pickup was proposed, in which the objective lens will be manipulated with a micro actuator for focusing. A high order diffractive objective lens has been designed specially for meeting the request on reduced weight by optimizing the surface relief profile of each zone one by one. The simulation by ray tracing tool shows a well corrected geometrical aberration and a near diffraction limit focal spot. The lens is expected to be produced with gray scale mask photolithography, and the weight will have only one third of that of its refractive counterpart.

Citation Download Citation

Cheng-Huan Chen, Yi-Chen Tsai, and Han-Ping David Shieh "Light-weight objective lens for DVD pickup", Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); https://doi.org/10.1117/12.574282

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