A temperature controlled liquid crystal lens for spherical aberration compensation

Knittel, Joachim, Richter, Hartmut, Hain, Mathias, Somalingam, Somakanthan and Tschudi, Theo (2007). A temperature controlled liquid crystal lens for spherical aberration compensation. In: Microsystem Technologies. Proceedings of: 4th European Workshop on Innovative Mass Storage Technologies. IMST 2004: 4th Innovative Mass Storage Technologies Workshop, Aachen, Germany, (161-164). 28-29 September 2004. doi:10.1007/s00542-006-0140-0


Author Knittel, Joachim
Richter, Hartmut
Hain, Mathias
Somalingam, Somakanthan
Tschudi, Theo
Title of paper A temperature controlled liquid crystal lens for spherical aberration compensation
Conference name IMST 2004: 4th Innovative Mass Storage Technologies Workshop
Conference location Aachen, Germany
Conference dates 28-29 September 2004
Proceedings title Microsystem Technologies. Proceedings of: 4th European Workshop on Innovative Mass Storage Technologies   Check publisher's open access policy
Journal name Microsystem Technologies-Micro-And Nanosystems-Information Storage and Processing Systems   Check publisher's open access policy
Place of Publication Berlin, Germany
Publisher Springer-Verlag
Publication Year 2007
Year available 2006
Sub-type Poster
DOI 10.1007/s00542-006-0140-0
ISSN 0946-7076
1432-1858
Volume 13
Issue 2
Start page 161
End page 164
Total pages 4
Language eng
Formatted Abstract/Summary A temperature controlled liquid crystal lens for spherical aberration compensation in a Blu-ray optical pickup is demonstrated and the influence of the temperature on the switching time is investigated. Using the liquid crystal BL-006, the shortest switching time is achieved at a temperature of 70°C, which corresponds to a reduction by a factor of 3 compared to 30°C. An optimum lens design would bring the switching time down to 320 ms, assuming a data-layer separation of 20 μm and an aperture diameter of 4 mm.
© Springer-Verlag 2006
Subjects 1005 Communications Technologies
1007 Nanotechnology
Keyword Optimization
Stopping time
Spherical aberration
Liquid crystals
Aberrations
Lenses
Switching functions
Blu-ray optical pickup
Lens design
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Published online: 31 March 2006

 
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