Optical: systems and elements – Lens – With graded refractive index
Patent
1998-06-16
2000-08-22
Epps, Georgia
Optical: systems and elements
Lens
With graded refractive index
359742, 359819, 369 4414, G02B 300, G02B 702, G11B 700
Patent
active
061081353
ABSTRACT:
A planar solid immersion lens has flat surfaces on both the top and bottom. The planar structure is made to function as a solid immersion lens by including compensation for the refraction of light rays entering the top surface of the solid immersion lens other than normal to the top surface. Compensation can be provided by using a radial graded index lens material or by including on the top surface a surface relief diffraction grating. The planar solid immersion lens can be included in a slider or flying head used in an optical disk drive data recording system.
REFERENCES:
patent: 3626194 (1971-12-01), Hirano et al.
patent: 4458980 (1984-07-01), Ohki et al.
patent: 4638471 (1987-01-01), Van Rosmalen
patent: 5125750 (1992-06-01), Corle et al.
patent: 5140572 (1992-08-01), Kibune et al.
patent: 5144603 (1992-09-01), Mozume et al.
patent: 5481386 (1996-01-01), Shimano et al.
patent: 5497359 (1996-03-01), Mamin et al.
patent: 5515353 (1996-05-01), Miyazaki et al.
patent: 5515354 (1996-05-01), Miyake et al.
patent: 5608695 (1997-03-01), Yamazaki
patent: 5666197 (1997-09-01), Guerra
patent: 5721629 (1998-02-01), Lee
patent: 5729393 (1998-03-01), Lee et al.
patent: 5870229 (1999-02-01), Tsuchida
Digital Papyrus Corporation
Epps Georgia
Lester Evelyn A.
LandOfFree
Planar proximity lens element and disk drive using same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Planar proximity lens element and disk drive using same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planar proximity lens element and disk drive using same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-587612