Optical: systems and elements – Lens – With support
Patent
1996-04-26
1998-03-17
Ben, Loha
Optical: systems and elements
Lens
With support
359808, 359811, 369 4415, G02B 702
Patent
active
057293937
ABSTRACT:
An air bearing assembly for an optical drive carries a solid immersion lens (SIL) having a bottom surface facing the disk contoured such that a central region where the optical path exits the bottom surface is closest to the recording medium regardless of perturbations in the attitude of the air bearing and neighboring points on the surface surrounding the central region recede for clearance but function at least partly as an air bearing. In one embodiment the bottom surface of the SIL has a radius of about 10 meters.
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patent: 4948226 (1990-08-01), Ozaki
patent: 5125750 (1992-06-01), Corle et al.
patent: 5497359 (1996-03-01), Mamin et al.
IBM Technical Disclosure Bulletin, vol. 38, No. 12, Dec. 1995, Armonk, NY, U.S., p. 51, "Slider-mounted solid immersion lens for optical storage".
IBM Technical Disclosure Bulletin, vol. 37, No. 10, Oct. 1994, Armonk, N.Y. U.S., p. 501, "Use of a Diamond-Like Carbon Thin-Film on a Silicon/Heat Sink".
Mansfield, S.M., Optic Letters, vol. 18, No. 4, 15 Feb. 1993, USA, pp. 305-307, "High-numerical-aperture lens system for optical storage".
Berg John S.
Lee Neville K. S.
Ben Loha
Digital Papyrus Corporation
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