High numerical aperture objective lens manufacturable in wafer f

Details High numerical aperture objective lens manufacturable in wafer f High numerical aperture objective lens manufacturable in wafer f

1998-11-12

2000-04-11

Epps, Georgia

Optical: systems and elements

Lens

156626, G02B 300

Patent

active

060494301

ABSTRACT:
A composite micro-lens for use in an optical or magneto-optical information storage system, made up of one or more lens elements which, when coupled in assembly, provide a desired numerical aperture. The design may provide, if necessary, a photo resist lens, a shaped ball lens, or one or more contoured surfaces within the composite construction to correct for aberrations. The composite lens designed in this manner allowing for the use of wafer-level assembly processes to provide high volume production capabilities. It is further intended that this micro-lens design support integration in an optical or magneto-optical head design.

REFERENCES:
patent: 5286338 (1994-02-01), Feldblum et al.
patent: 5288998 (1994-02-01), Betzig et al.

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